WO2001076806A1 - Welding system - Google Patents
Welding system Download PDFInfo
- Publication number
- WO2001076806A1 WO2001076806A1 PCT/JP2001/003062 JP0103062W WO0176806A1 WO 2001076806 A1 WO2001076806 A1 WO 2001076806A1 JP 0103062 W JP0103062 W JP 0103062W WO 0176806 A1 WO0176806 A1 WO 0176806A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- welding
- welded
- arc electrode
- arc
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
- B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
- B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work for planar work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
- B23K9/0043—Locally welding a thin plate to a thick piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Definitions
- the present invention relates to a welding system and is particularly useful when performing high-precision butt welding. Background art
- a material called a tailored blank material is used in which a plurality of steel sheets having different thicknesses and materials are butted against each other and integrated by a C02 (carbon dioxide) laser welding method or the like.
- the welding head used in the welding system can be used for laser welding and arc welding, which can perform welding with a wide melting width (high groove tolerance) and a deep penetration depth.
- the laser-arc combined welding head which performs the welding at the same time is suitable.
- a coaxial welding proposed in Japanese Patent Application Laid-Open No. 11-15673 is disclosed.
- the coaxial welding head reflects the laser light on the convex surface of the convex-shaped mirror, splits the laser light into a first split laser light and a second split laser light, and further splits the split laser light into two.
- the laser light is reflected by the concave surface of the concave roof mirror to form a space between the first split laser light and the second split laser light, and an arc electrode is arranged in this space, and the laser light and the arc electrode are arranged.
- arc electrode is arranged in this space, and the laser light and the arc electrode are arranged.
- the arc electrode 01 becomes difficult to discharge, and the adhered metal obstructs the laser light path, thereby reducing the energy of the laser light 02.
- the present invention effectively inhibits adhesion of metal vapor to an arc electrode and performs composite welding under the optimum arrangement condition of the arc electrode with respect to the laser beam irradiation position.
- An object of the present invention is to provide a welding system having a composite welding head that can perform butt welding, such as tailored blank welding, with high efficiency and high accuracy. Disclosure of the invention
- Reference positioning means having a reference plate configured to perform positioning of the end surface of the table and to retreat downward from the upper surface of the table during welding;
- Conveying means for conveying the material to be welded, which is conveyed toward the end face of one of the materials to be welded whose positioning is completed by abutting the material to be welded placed on the upper surface of the table against the reference plate or the reference plate;
- a horizontal beam supported at both ends by vertical end struts and horizontally disposed above and over the welding stage;
- a welding head mounted on the carriage and welding the welded portion of the material to be welded mounted on the welding stage by moving along the welding line together with the carriage;
- This welding head is a laser-arc composite welding head for simultaneously irradiating the material to be welded with laser light and arc discharge to weld the material to be welded.
- An arc electrode position adjusting means for adjusting the position of the arc electrode in the orthogonal direction with respect to the laser light irradiation position on the workpiece by moving in a direction orthogonal to the optical axis of the laser light applied to the welding material. It is characterized by having.
- the workpiece to be welded conveyed by the conveying means is positioned by the reference positioning means C
- the positioning is performed by abutting against the reference plate, and the end face of the material to be welded conveyed by another transport means is abutted against the end face of the material to be welded in this state, thereby completing the preparation for butt welding.
- the butt welding can be performed with a laser-arc composite welding head that travels together with the carriage along the welding line along the butt portion of the materials to be welded. That is, positioning and butt welding for butt welding of the workpieces can be automatically performed as a series of operations.
- the arc electrode can be moved in a direction orthogonal to the optical axis direction of the laser beam applied to the material to be welded, the arc electrode is optimally positioned at the orthogonal position. In other words, it is possible to select an optimum arrangement condition that can reliably perform an arc discharge to the material to be welded and prevent adhesion of metal vapor to the tip of the arc electrode.
- An intermediate support that supports the middle of the horizontal beam between the adjacent welding stages, and a carriage that runs horizontally on the horizontal beam
- a plurality of reference positioning means each having a reference plate configured to retreat downward from the upper surface of each table during welding and to position the end surface of the workpiece;
- the reference plates are brought into contact with the reference plate by the workpieces placed on the upper surfaces of the tables, respectively.
- Transport means ;
- a welding head that is mounted on the carriage and transfers a weight j along the welding line with the carriage to melt a welded portion of each workpiece to be mounted on each of the welding stages;
- This welding head is a laser-arc combined welding head for simultaneously irradiating the material to be welded with laser light and arc discharge to weld the material to be welded, and furthermore, the arc electrode is connected to the material to be welded.
- Arc electrode position adjusting means for adjusting the position of the arc electrode in the direction perpendicular to the laser beam irradiation position on the workpiece by moving the arc electrode in the direction orthogonal to the optical axis direction of the laser light applied to the welding material. Things,
- the work pieces to be welded at the respective welding stages are welded at a predetermined welding speed along with the movement to the other end of the horizontal beam.
- the workpieces have been moved and the welding of the workpieces at all stages has been completed, they move in the opposite direction at a speed higher than the welding speed, reach the initial position, and move again along the horizontal beam toward the other end. It is characterized in that it is configured to perform predetermined welding work.
- butt welding is performed by a single welding head traveling with a single carriage on a workpiece to be welded at a plurality of welding stages.
- the horizontal beam on which the carriage moves by the intermediate support can be made rigid, even if the carriage on the horizontal beam moves at high speed, the vibration of the horizontal beam due to this movement can be suppressed, and the welding head can be accurately adjusted. It can be made to follow the welding line. That is, the effect of realizing high-speed movement of the carriage and the effect of maintaining high welding accuracy can be realized at the same time.
- One welding state detection sensor that detects the quality of the welding state is arranged on the carriage downstream of the moving direction during welding with respect to the welding head.
- the welding state is detected only when the welding head moves in one direction.
- only one expensive welding state detection sensor is used, and the cost can be reduced.
- Driving means mounted on the carriage,
- the carriage is moved by a moving means comprising a rack in which the pinion fixed to the rotating shaft of the driving means and the pinion arranged from one end to the other end on the upper surface of the horizontal beam are combined.
- the feature is to make it.
- moving parts such as a carriage and a welding head are performed by transmitting a rotating force to a rack through a pinion.
- the moving speed of the carriage can be made much faster than when a ball screw is used.
- the traveling speed is 11 Om / min at the maximum, whereas in the case of the rack 'pinion, A high speed of 24 O m / min can be realized.
- the welding head may be as follows.
- a laser-arc composite welding head for simultaneously performing laser light irradiation and arc discharge on a material to be welded to weld the material to be welded
- An arc electrode tilt angle adjusting means for adjusting the tilt angle of the arc electrode with respect to the laser light irradiation position by tilting the arc electrode with respect to the laser light irradiation position on the workpiece.
- the optimal arrangement condition in the inclination angle of an arc electrode ie, the arc discharge to a to-be-welded material can be performed reliably, and adhesion of metal vapor to the front-end
- a laser-arc combined welding head for simultaneously performing laser beam irradiation and arc discharge on the material to be welded to weld the material to be welded
- An arc electrode by proximity or away E to the laser beam irradiation position in the material to be welded, which includes an arc electrode distance adjusting means for adjusting the distance between the arc electrode and the laser beam irradiation position.
- the optimum distance between the laser beam irradiation position and the arc electrode is obtained.
- An arrangement condition that is, an optimal arrangement condition that can reliably perform arc discharge to the material to be welded and prevent metal vapor from adhering to the tip of the arc electrode can be selected.
- a laser-arc combined welding head for simultaneously welding the material to be welded by simultaneously irradiating the material to be welded with laser light and arc discharge
- the position of the arc electrode in the orthogonal direction with respect to the laser beam irradiation rinse on the material to be welded is adjusted.
- Arc electrode tilt angle adjusting means for adjusting the tilt angle of the arc electrode by tilting the arc electrode with respect to the optical axis of the laser beam
- An arc electrode adjustment mechanism comprising an arc electrode distance adjusting means for adjusting the distance between the laser light irradiation position and the arc electrode by moving the arc electrode close to or away from the laser light irradiation position on the workpiece.
- ADVANTAGE OF THE INVENTION it is possible to perform a precise arrangement adjustment with respect to an arc electrode by an arc electrode adjustment mechanism, to reliably perform an arc discharge to a material to be welded, and to transmit a metal vapor to a tip portion of an arc electrode. It is possible to select an optimal arrangement condition that can prevent the adhesion.
- the arc electrode adjustment mechanism is
- the arc discharge to a to-be-welded material can be performed reliably, and adhesion of metal vapor to the arc electrode front-end
- tip part can be prevented.
- Optimal placement conditions can be selected.
- the arc electrode adjustment mechanism is
- a first vertical slide guide fixed to the side of the nozzle of the welding head, and a laser beam (?: Second vertical guide guided in the optical axis direction) applied to the workpiece by the first vertical slide guide.
- the tip is screwed to the first vertical slide guide, and the tip is rotatably coupled to the support member.
- the 7-electrode is orthogonal to the optical axis direction together with the support member and the arc electrode support member.
- a horizontal feed screw for moving in the direction, a first screw is screwed to the first vertical slide guide, and a tip end is rotatably and swingably coupled to the arc electrode holding member, and is connected to the arc electrode support member.
- the first vertical slide guide is screwed into the first vertical slide guide, and the tip is the second vertical slide guide.
- a vertical feed screw that abuts the bottom surface of the second vertical slide guide to move the arc electrode in the optical axis direction together with the second vertical slide guide, the support member, and the arc electrode support member;
- a laser-arc combined welding head for simultaneously performing laser light irradiation and arc discharge on the material to be welded to weld the material to be welded
- Gas flow generating means for ejecting and generating a gas flow along the axis of the arc electrode at the support of the arc electrode.
- tip part of an arc electrode can be reliably prevented, and favorable laser-arc combined welding can be performed.
- Gas flow generating means for ejecting and generating a gas flow along the axis of the arc electrode at the support of the arc electrode.
- positioning conditions of an arc electrode can be selected and the adhesion of metal vapor to the front-end
- a laser-arc combined welding head for arranging an arc electrode outside the laser beam and simultaneously irradiating the laser beam and arc discharge to the workpiece to weld the workpiece.
- the arc electrode is arranged outside the laser beam within the same welding head, and a gas flow generating means for ejecting and generating a gas flow along the axis of the arc electrode is provided on a support portion of the arc electrode. thing.
- a plurality of arc electrodes are attached to a ring-shaped support member surrounding the laser beam at predetermined intervals in the circumferential direction and are selectively usable depending on the welding direction.
- tip part of an arc electrode can be prevented more reliably, and favorable laser-arc composite welding can be performed.
- An arc electrode that is located downstream of the laser beam irradiation position in the direction of movement of the welding head.
- An arc electrode that is located downstream of the laser beam irradiation position in the direction of movement of the welding head.
- the reference plate When positioning the end face of one of the workpieces, the reference plate is projected upward from the J: plane of the first table while the second table is separated from the first table, and
- the second table After the positioning of the end face of The second table is moved toward the first table by retreating downward from the upper surface of the first table, and the end surface of the second table is brought into contact with the end surface of the first table to retreat the space above the reference plate.
- the reference plate at the time of welding, the reference plate can be retracted into a space whose upper portion is closed.
- the welding powder at the time of welding does not hinder the elevation of the reference plate, and the positioning accuracy of the reference plate can be easily improved.
- one end face is formed with a protrusion that projects horizontally toward the other end face, and a recess into which the protrusion fits is formed on the other end face. What was formed in.
- the space in which the reference plate is retracted can be completely isolated from the welding powder.
- the effects of the invention described in the above item 12) can be reliably reduced.
- the reference plate is fixed to the tip of a lever that rotates about a point below the upper surface of the first table as a rotation center, and a part of the lever is rotated with one rotation of the lever. Is rotated until it comes into contact with the end surface of the first table and is regulated, and protrudes upward from the upper surface of the first table.
- the reference table can be moved up and down by rotating the lever.
- the space for ascending and descending the reference plate can be made as small as possible. This leads to the effect that the space below the table where various devices are arranged in an intricate manner can be used effectively and rationally.
- the lever is rotated by the drive of an air cylinder that is connected to the tip of the piston rod.
- the rotation of the lever can be performed by the expansion and contraction of the piston rod.
- the adjustment of the raised position of the lever accompanying the rotation is performed by adjusting the amount of protrusion of the bolt.
- the positioning of the reference plate can be performed only by adjusting the bolt, and this adjustment work is facilitated.
- a base having a workpiece detection sensor at the tip and configured to move toward the deformed workpiece
- the front lever is integrated with the lower lever from the base. And an upper lever that pivots in the opposite direction with respect to the base and abuts on the material to be welded from above the material to be welded,
- the upper lever and the lower lever are rotated to open the end of the workpiece between the upper lever and the lower lever. thing.
- movement is started from the time when a board
- this can be achieved satisfactorily regardless of the shape of the plate material. That is, even if one of the materials to be welded in the butt welding is a deformed sheet material, it can be automatically and satisfactorily butted against the welding end face of the material to be welded. Therefore, it is a particularly useful system for tailored blank welding of steel plates and butt welding of thin plates.
- the transfer arm in the above item 17) may have the following configuration. 8) In the transfer arm of 17) above,
- the base is a horizontal base plate, a vertical member provided perpendicular to the base plate, and projects forward from the tip of the vertical member to support the deformed material from below and detect the deformed material at the tip. And a support member on which a plate material detection sensor is provided, and an air cylinder serving as a driving means is fixed, and the air cylinder extends and contracts its piston rod in a horizontal direction.
- the moving member fixed to the tip of the piston rod is configured to move linearly in the horizontal direction on the base, and the lower lever has its base end pivotally attached to the moving member via a pin.
- a pin provided in the middle of the lower lever is fitted into a long hole provided in the longitudinal direction of the vertical member, so that the moving member is configured to move in the shape of the long hole along with the movement of the moving member.
- the lower lever is rotatably attached to the center of the lower lever via a pin.
- the lower lever contacts the contact member of the base as the moving member moves forward, and rotates the pin as the moving member further moves. It is configured to rotate to the lower lever side as the center of movement.
- the sheet material detection sensor detects the deformed sheet material, stops the movement of the base at the detected position, and drives the air cylinder to move the moving member forward.
- the lower lever and the upper lever are rotated in opposite directions with each other, so that the end of the deformed plate is inserted between the upper lever and the lower lever.
- the lower lever operates to support the plate from below by simply driving the air cylinder, extending the piston rod thereof, and linearly moving the moving member.
- Upper Lever Rotating in Contact With the upper lever and lower lever, the material to be welded can be held by the upper lever and the lower lever by rotating from above and contacting the upper surface of the material to be welded.
- This can be achieved not only satisfactorily but also by performing the prying operation only by driving the air-cylinder.
- the mechanism for this can be the most rational.
- a spring is provided between the upper lever and the lower lever, and the spring force of this spring is adjusted to adjust the force of the deformed workpiece between the upper lever and the lower lever. What you did.
- ADVANTAGE OF THE INVENTION According to this invention, it can adjust freely the buckling force of the bobbin material between an upper arm and a lower arm. As a result, when the material to be welded is brought into contact with another material to be welded while the material to be welded is held by the transfer arm, slippage occurs between the upper arm and the lower arm and the material to be welded, Some deviation from the butt end face of the material to be welded can be absorbed.
- FIG. 1 is an explanatory view conceptually showing a welding system according to an embodiment of the present invention having two welding stages.
- FIG. 2 is an explanatory view conceptually showing an aspect of a work of positioning a steel plate as a material to be welded in one welding stage of the embodiment shown in FIG.
- FIG. 3 is a front view showing the welding system according to the present embodiment.
- FIG. 4 is a sectional view of a laser-arc combined welding head according to the first embodiment of the present invention.
- FIG. 5 is an enlarged cross-sectional view taken along line AA of FIG.
- FIG. 6 is a view taken in the direction of arrow B in FIG.
- FIG. 7 is a cross-sectional view taken along line CC of FIG.
- FIG. 8 is a view in the direction of arrow D in FIG. 5 shown partially broken.
- FIG. 9 is a structural diagram of the flange mounting surface.
- FIG. 10 is an enlarged view of a portion E in FIG.
- FIG. 11 is an explanatory view showing an adjustment state of an arc electrode arrangement by an arc electrode adjustment mechanism provided in the laser-arc composite welding head.
- FIG. 12 is an explanatory diagram showing an adjustment state of an arc electrode arrangement by an arc electrode adjustment mechanism provided in the laser-arc combined welding head.
- FIG. 13 is an explanatory view showing an adjustment state of an arc electrode arrangement by an arc electrode adjustment mechanism provided in the laser-arc composite welding head.
- FIG. 14 is a sectional view of a laser-arc combined welding head according to a second embodiment of the present invention.
- FIG. 15 is an enlarged cross-sectional view taken along line FF of FIG.
- FIG. 16 is a view in the direction of arrow G in FIG.
- FIG. 17 (a) is a cross-sectional view taken along line HH of FIG. 15, and FIG. 17 (b) is a cross-sectional view taken along line II of FIG. 15 (a).
- FIG. 18 (a) is a cross-sectional view taken along line J-J of FIG. 15, and FIG. 18 (b) is a partially cutaway view taken in the direction of arrow K in FIG. 15 (a).
- FIG. 19 is an enlarged perspective view showing an arc electrode adjustment mechanism provided in the laser-arc composite welding head, partially cut away.
- FIG. 20 is an explanatory view showing an adjustment state of the arc electrode arrangement by the arc electrode adjustment mechanism.
- FIG. 21 is an explanatory view showing an adjustment state of the arc electrode arrangement by the arc electrode adjustment mechanism.
- FIG. 22 shows an adjustment state of the arc electrode arrangement by the arc electrode adjustment mechanism.
- FIG. 23 is a cross-sectional view of the essential
- FIG. 24 is a cutaway view of a laser-arc composite welding head according to a fourth embodiment of the present invention.
- FIG. 25 is a cutaway perspective view of the main part.
- FIG. 26 is a cutaway perspective view of a main part of the developed example.
- FIG. 27 is a switching circuit diagram of the arc electrode of the developed example.
- FIG. 28 is a diagram showing the reference plate of the reference positioning mechanism and a portion in the vicinity thereof extracted.
- FIG. 28A is a perspective view showing the reference plate 12 protruding from the upper surface of the table 3
- FIG. FIG. 3 is a cross-sectional view of the reference plate 12 shown by a cast in which the reference plate 12 is retracted from the upper surface of the table 3.
- FIG. 29 is a sectional view showing an embodiment relating to the improvement of the reference positioning mechanism in a state where the reference plate is raised.
- FIG. 30 is a view taken along line L-L of FIG.
- FIG. 31 is an enlarged view showing a mechanism for adjusting the amount of rotation of the lever in the case shown in FIG.
- FIG. 32 is a sectional view showing the embodiment shown in FIG. 29 in a state where the reference plate is lowered.
- FIG. 33 is a diagram illustrating a main part of the transfer arm according to the embodiment of the transfer device, which is extracted and is a side view showing a normal state (non-operating state).
- FIG. 34 is a diagram extracting and showing a main part of the transfer arm according to the above embodiment, and is a side view showing a state at the time of the movement.
- FIG. 35 is an explanatory view conceptually showing a state of butting of deformed steel sheets using the transfer system according to the present embodiment.
- FIG. 36 is an explanatory diagram of conventional laser-arc combined welding. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an explanatory view conceptually showing a welding system according to the present embodiment. As shown in the figure, this system has two welding stages I and II for performing similar butt welding work. There is no particular limitation on the number of welding stages I and II, but with two welding stages, twice the working efficiency is obtained than with one welding stage. Therefore, the number may be selected in consideration of the desired work efficiency.
- Each of the welding stages I and II is arranged adjacent to each other and has a common table 3 that forms a horizontal plane on which the steel plates 1-1, 1-2, 1-2 and 2-2 to be welded are placed. have.
- the horizontal beam 4 is supported at both ends by vertical end supports 5, 6, and is horizontally disposed above and over each of the welding stages I, II.
- the carriage 7 carries a welding head (not shown in FIG. 1) and travels on the horizontal beam 4. The welding operation is performed by the welding of the welding head as the carriage 7 travels. This is done by moving along the line.
- the steel plates 1-1 and 2-1 are carried in by carrying-in devices having suction means (not shown) and the like through the carrying-in port A, respectively, and mounted on the table 3 of the welding stage I.
- the steel plates 112 and 2-2 are similarly carried in through the carry-in entrance A, respectively, and placed on the table 3 of the welding stage 11.
- the transporting device uses the steel plates 1-1, 2-1, 1-2.2.2-2, which are the materials to be welded, as the reference plate of the reference positioning mechanism (not shown in Fig. 1) or this reference.
- the workpiece is conveyed toward the surface of one of the workpieces whose positioning has been completed by abutting the plate.
- the steel plates 1 1 and 2-1 and the steel plates 1-2 and 2-2 for which the butt welding has been completed are moved to the upper left in the figure at right angles to the welding line, and further moved to the left from that position. Unloaded from Exit B.
- FIG. 2 is an explanatory view conceptually showing an aspect of positioning of a steel plate as a material to be welded in welding stage I or II.
- the steel plates 1 and 2 for butt welding are placed on a table 3 that forms a horizontal surface.
- the moving pawls 8 and 9 of the transfer device which move linearly in contact with the end surfaces of the transfer device are positioned at predetermined positions.
- the moving claws 8 and 9 move along the grooves 10 and 11 formed in the table 3.
- the position in the width direction (the direction of the welding line) and the position in the longitudinal direction (the direction perpendicular to the welding line) are positioned at predetermined positions by moving the moving claw 8.
- the positioning in the width direction is performed by moving the moving claws 8 which are opposed to and abut against the end faces in the width direction of the steel sheet 1 to the respective predetermined positions. This is performed by moving two moving claws 8 in contact with the end face in the longitudinal direction toward the reference plate 12 of the reference positioning structure and making contact with the reference plate 12.
- the reference positioning mechanism is mounted on the upper surface of the table 3 3 ⁇ 4 Prior to the butt welding of the welding material, the reference plate 12 is projected from the upper surface of the table 3 toward the Are placed in contact with each other to determine the position of the end face of the material to be welded, and the reference plate 12 is retracted from the upper surface of the table 3 below the cable 3 during welding. After the positioning is completed by bringing one steel plate 1 into contact with the reference plate 12, the reference plate 12 is retracted downward from the upper surface of the table 3, and the movable claw 9 is moved in this state to move the steel plate 1.
- the position in the width direction (weld line direction) and the longitudinal direction (direction perpendicular to the weld line) in Step 2 are positioned at predetermined positions.
- positioning in the width direction is the same as for steel plate 1!
- the moving claws 9 respectively contacting and opposing the widthwise end surfaces of the steel plate 2 are moved to predetermined positions, and the positioning in the longitudinal direction is performed by contacting the end surfaces of the steel plate 2 in the longitudinal direction. This is performed by moving the two moving claws 9 toward the butted end surface of the steel plate 1 and making contact with this end surface.
- the presser fittings 13 and 14 are lowered, and the ends of the steel plates 1 and 2 are pressed from above and clamped. Weld the butted portions of steel plates 1 and 2 while moving the welding head along.
- FIG. 3 is a front view showing the welding system according to the present embodiment.
- the horizontal beam 4 is supported at both ends by vertical end supports 5 and 6, and is disposed across the respective welding stays I and II.
- the adjacent welding By supporting and reinforcing with an intermediate column 18 arranged between the stages I and II, a rigid structure of the carriage 7 with a welding head 19 is realized.
- the carriage 7 forms a moving part that moves along the horizontal beam 4 together with the electric motor 21 and the welding head 19 mounted thereon.
- a rack 22 is provided on the upper surface of the horizontal beam 4 from one end to the other end, and the pinion 23 is joined to the rack 22.
- the pinion 23 is fixed to the rotating shaft of the electric motor 21. Force, thus rotating the pinion 23 with the drive of the electric motor 21 causes the moving part to move linearly along the rack 22 so that welding work can be performed along a predetermined welding line. .
- the welding state detection sensor 24 is a sensor for detecting the quality of the welding state, and is provided on the carriage 7 with respect to only one of the welding heads 19 on the downstream side in the moving direction during welding. Therefore, in the welding system according to the present embodiment, welding work is performed only when moving from the left end to the right end in the figure. Move the carriage 7 in the opposite direction to return the carriage 7 to the initial position. Therefore, the faster this return movement speed is, the shorter the takt time can be and the more efficient welding operation can be performed. Therefore, while the welding speed is, for example, 8 m / min, the return speed of the carriage 7 can be as high as, for example, 240 m / min.
- each of the welding stages I and II is performed at a predetermined welding speed.
- the steel sheets 1 and 2, which are the materials to be welded, are welded, and following the welding, the quality of the welding state is detected by a contact state detection sensor 24.
- the carriage 7 moves to the other end (the right end in the figure) of the horizontal beam 4 and when welding of the workpieces at the welding stages I and I] is completed, the welding speed is higher than the welding speed and in the opposite direction. Move to reach the nesting position. In this state, prepare for the next welding operation.
- the quality of the welded portion at this time is simultaneously determined, and the quality of the steel sheets 1 and 2 that produce good welding is determined. It is necessary to stop unloading. For this reason, it is necessary to provide a welding state detection sensor 24 for detecting the quality of the welding state on the downstream side in the traveling direction of the carriage (welding head) 7 during welding. 4 is an expensive device, so we want to make this one. Therefore, in the present embodiment, the cost is reduced by using one welding state detection sensor 24. Instead, the welding operation must be performed only when the carriage 7 travels in one direction from the one end of the horizontal beam 4 to the other end. That is, no welding work can be performed when traveling to the opposite side.
- the horizontal beam 4 has a rigid structure by the intermediate support 1, and the racks 22 and the pinions 23 are used for moving the carriage 7, thereby enabling desired high-speed movement.
- FIG. 4 is a cross-sectional view of the laser-arc combined welding head according to the first embodiment
- FIG. 5g is an enlarged cross-sectional view taken along line AA of FIG. 4, and FIG. Direction arrow view
- Fig. 5 is a cross-sectional view taken along line C-C of Fig. 5
- Fig. 8 is a partially cutaway view of a doctor in direction D of Fig. 5
- Fig. 9 is a structural view of a flange mounting surface (direction B in Fig. 5).
- FIG. 10 is an enlarged view of a portion E in FIG. FIG. 11, FIG. 12, and FIG. 13 are explanatory views showing an adjustment state of an arc electrode arrangement by an arc electrode adjustment mechanism provided in the laser-arc combined welding head.
- the tip of the optical fiber 31 is connected to the upper part of the laser-arc composite welding head 19-11.
- the base end of the optical fiber 31 is connected to a YAG laser oscillator (not shown), and the laser light 32 oscillated from the YAG laser oscillator is transmitted by the optical fiber 31 to a welding head.
- 1 9 Introduced into 1.
- the laser light 32 coming out of the tip of the optical fiber 31 becomes parallel light by the collimating lens group 33 provided in the welding head 191-1, and half of the light becomes the laser light 32. Reflected in the horizontal direction by the plate-shaped first reflection mirror 34 inclined at 45 degrees to the axial direction, and furthermore, facing the first reflection mirror 34 in the same direction at a predetermined interval. The light is reflected downward by the disposed plate-like second reflection mirror 35. ⁇ Laser light with a circular cross section 3 2 Power The laser light is divided into two parts, a first divided laser light 32 a and a second divided laser light 32 b, each having a semicircular cross section. A space portion 36 is formed in! E of 2a and 32b.
- the split laser beams 32a and 32b are condensed by a converging lens group 37 provided in the welding head 19_1, and are irradiated on a workpiece 38 such as a steel plate.
- a rod-shaped arc electrode (arc rod) 40 made of tungsten or the like is arranged in the space 36 between the split laser beams 32a and 32b.
- (Divided laser beams 32a, 32b) and arc electrode 40 are coaxial.
- the arrangement of arc electrode 40 is based on arc electrode position adjustment function, arc electrode inclination angle adjustment function, and arc electrode adjustment function.
- An arc electrode adjusting mechanism having an electrode distance adjusting function can be adjusted appropriately.
- a frustoconical nozzle 42 is attached to the lower part of the welding head 19-1.
- an inert gas 51 such as argon gas is introduced into the nozzle 42 by a tube 44, and is directed from the opening 42 a at the tip (lower end) of the nozzle 42 toward the material 38 to be welded. Is to be injected.
- the arc electrode 40 is supported by the central part of the cylindrical arc electrode support member 61 in a downwardly directed state, and the entire arc electrode portion is T-shaped.
- the arc electrode supporting member 61 includes a conductive member 41 made of copper and a ceramic tube 43 as an electrically deduced material covering the outer periphery of the conductive member 41. It penetrates in the radial direction (left-right direction in Fig. 1).
- An electric wire (not shown) is connected to the conductive member 41, and a voltage is applied to the arc electrode 40 from a power source (not shown) via the conductive member 41. Further, a cooling water passage 61a is formed in the arc electrode support member 61, and the arc electrode 40 is cooled by flowing cooling water through the cooling water passage 61a.
- the laser beam 3 2 irradiating the material to be welded 38 (divided) is provided on both sides of the nozzle 42 through which both ends of the arc electrode support member 61 penetrate.
- a flange mounting surface 45 is formed parallel to the optical axis direction (irradiation direction: vertical direction in FIG. 5) of the laser beams 32a and 32b).
- the pair of flange mounting surfaces 45 are parallel to each other.
- a long hole 45 a long in the optical axis direction is formed in the center of the flange mounting surface 45, and the arc electrode support member 61 (L both ends are passed through these long holes 45 a). Therefore, the arc electrode supporting member 61 can be moved up and down by the length of the elongated hole 45a with respect to the flange mounting rod 45.
- the first flange 46 is fixed to the flange mounting surface 45.
- An O-ring 50 as a seal member is sandwiched between the first flange 46 and the flange mounting surface 45.
- the O-ring 50 is disposed so as to surround the elongated hole 45 a of the flange mounting surface 45.
- elongated holes 46 a are formed in the direction of the optical axis, and the first flange 46 is attached to the flange mounting surface by screws 47 through these elongated holes 46 a. 4 It is fixed to 5.
- the first flange 46 is fixed to the flange mounting surface 45 by the screw 47.
- the inert gas 51 flowing through the nozzle 4 is forced by the 0 ring 50 pressed by the first flange 46 and the flange mounting surface 45 to the flange mounting surface 45 and the first flange 46.
- the screw 47 is loosened, the first flange 46 can be moved up and down by the length of the elongated hole 46 a with respect to the flange mounting surface 45.
- a circular hole 46c is formed in the center of the first flange 46, and both ends of the arc electrode support member 61 are passed through the hole 46c.
- the inner diameter of the hole 46 c is slightly larger than the outer diameter of the arc electrode support member 61. That is, by making the inner shell of the hole 46c larger than the outer periphery of the arc electrode support member 61 and forming an appropriate gap between the arc electrode support member 61 and ⁇ 46c, the arc electrode support Individual movement of the member 61 (see Fig. 12) is made possible.
- a second flange 48 is fixed to an outer surface 46 b of the first flange 46 by a screw 49.
- a circular hole 48a is formed in the center of the second flange 48, and both ends of the arc electrode support member 61 are passed through the hole 48a.
- the hole 48a of the second flange 48 is slightly larger than the hole 46c of the first flange 46.
- the O-ring 52 is arranged along the inner peripheral surface of the hole 48 a of the second flange 48, and surrounds the outer periphery of the arc electrode support member 61.
- a protrusion 48b is formed to protrude inward over the entire circumference. Accordingly, when the second flange 48 is fixed to the first flange 46 by tightening the screw 49, the O-ring 52 is crushed and deformed by the projection 48b of the second flange 48.
- the gap between the arc electrode supporting member 61 and the second flange 46 is closed by the O-ring 52, and leakage of the inert gas 51 from this gap is prevented.
- the arc electrode support member 61 is fixed by the reaction force of the ring 52.
- the screw 49 is loosened, the pressing of the ring 52 by the protrusion 48b of the second flange 48 is loosened, and as a result, the pressing fi of the arc electrode supporting member 61 by the zero ring 52 is also reduced. Loosen. For this reason, the arc electrode supporting member 61 can be moved in the axial direction (the direction orthogonal to the optical axis direction).
- the inner diameter of the projection 48 b is slightly larger than the outer diameter of the arc electrode support member 61.
- the arc electrode support member 61 can be tilted.
- the laser-arc combined welding head 199-1 of the present example has an arc electrode adjustment mechanism that has both an arc electrode position adjustment function, an arc electrode inclination angle adjustment function, and an arc electrode distance adjustment function. A mechanism was provided.
- the laser beam 3 2 split laser beam 3 2 a, 3 2 b which is formed in parallel to both sides of the nozzle 42 of the welding head 19 1 and 11 and irradiates the material to be welded 38.
- a pair of flange mounting surfaces 45 having an elongated hole 45a long in the optical axis direction and allowing both parts of the arc electrode support member 61 to pass through the elongated hole 45a;
- a hole 4 6 c that has a hole 4 6 a and is fixed to the flange mounting surface 45 with a screw 4 7 through this elongated hole 46 a and that allows the arc electrode support member 61 to tilt.
- Both ends of 1 have a hole 48a which is larger than the hole 46c of the first flange 46 for passing through, and the outer portion of the hole 48a
- the second flange 480 When placed along the inner peripheral surface, surrounds the outer periphery of arc electrode support member 61, and secures second flange 48 to first flange 46 with screws 49
- the second flange 480
- the arc electrode 40 is irradiated with the laser beam 32 (the divided laser beam 32 a, 32 fc) irradiated on the workpiece 38. )
- the arc electrode 4 In the direction perpendicular to the optical axis direction 62 (in the direction of arrow G), the arc electrode 4 with respect to the irradiation position 38 a of the laser light 32 (divided laser light 32 a, 32 b).
- the orthogonal position of 0 can be adjusted.
- the loosening of the screw 49 causes the pressing of the 0-ring 52 by the projection 48b of the second flange 48 to be loosened, so that the arc electrode supporting member 61 as shown by the arrow G; ⁇
- the position ⁇ in the orthogonal direction of the arc electrode 40 with respect to the laser beam irradiation position 38 a is appropriately adjusted. Can be. If the screw 49 is tightened again, the zero ring 52 can reliably prevent the inert force 51 from leaking from the gap between the arc electrode support member 61 and the second flange 48.
- the arc electrode support member 61 can also be fixed.
- the first flange 46 can be moved in the optical axis direction 62 by loosening the screw 47, one of the first flanges 46 is moved upward and the other is moved.
- the inclination angle of the arc electrode 40 with respect to the laser beam irradiation position 38a is appropriately adjusted by moving the first flange 46 of the laser beam downward, or by moving only one of the first flanges 46 upward or downward. can do. If the screw 47 is tightened again, the 0 ring 50 can reliably prevent the leakage of the inert gas 51 from the gap between the flange mounting surface 45 and the ⁇ 1 flange 46.
- the distance between the laser light irradiation position 38a and the arc electrode 40 is adjusted by moving the arc electrode 40 close to or away from the laser light irradiation position 38a. can do.
- the first flange 46 can be moved in the optical axis direction 62, so that both the first flanges 46 are moved upward.
- the distance between the laser beam irradiation position 38a and the arc electrode 40 can be appropriately adjusted by moving the laser beam downward.
- FIG. 14 is a cross-sectional view of the laser-arc combined welding head according to the second embodiment
- FIG. 15 is an enlarged cross-sectional view taken along the line FF of FIG. 14, and FIG. 15 G arrow doctor in Fig. 5
- FIG. 17 (a) is a cross-sectional view taken along the line H—H of FIG. 15, and FIG. 17 (b) is a sectional view of FIG. 17 (a).
- FIG. 18 (a) is a cross-sectional view taken along the line I-J of FIG. 15, and FIG. 18 (b) is a partially cut-away view of FIG.
- Fig. 19 (a) is a view in the direction of the arrow K
- Fig. 19 is an enlarged perspective view showing an arc electrode adjusting mechanism provided in the laser-arc combined welding head, partially cut away.
- FIG. 20E, FIG. 21 and FIG. 22 are explanatory views showing the adjustment state of the arc electrode arrangement by the arc electrode adjustment mechanism.
- the tip of the fiber 81 is connected to the upper part of the laser-arc composite welding head 19-2.
- the base end of the optical fiber 81 is connected to a YAG laser oscillator (not shown), and the laser light 82 oscillated from the YAG laser oscillator is transmitted by the optical fiber 81 and welded. 1 9—2.
- the laser beam 82 coming out of the tip of the optical fiber 81 is converted into parallel light by the collimating lens group 83 provided in the welding head 19-2, and half of it becomes the laser beam 82.
- the light is laterally reflected by the plate-shaped first reflection mirror 84 inclined at 45 degrees with respect to the axial direction, and is further arranged in the same direction at a predetermined interval with respect to the first reflection mirror 84.
- the light is reflected downward by the plate-shaped second reflection mirror 85. ⁇
- the laser beam has a circular cross section 8 2 It is divided into a first laser beam 8 2a and a second laser beam 8 2b with a semi-circular cross section.
- a space 86 is formed between the lights 82a and 82b.
- the split laser beams 82a and 82b are condensed by a converging lens group 87 provided in the welding head 19-2, and are irradiated onto a workpiece 88 such as a steel plate. Further, a rod-shaped arc electrode (arc rod) 90 made of tungsten or the like is arranged in a space 86 between the divided laser beams 82a and 82b. 8 2 (divided laser beams 8 2 a, 8 2 b) and arc electrode 90 are coaxial. The arrangement of arc electrode 90 is based on arc electrode position adjustment function and arc electrode inclination angle adjustment function. An arc electrode adjusting mechanism having a function of adjusting the distance between the electrode and the arc electrode can be adjusted appropriately.
- a frustoconical nozzle 92 is attached to the lower part of the welding head 19-2.
- an inert gas such as argon gas is introduced into the nozzle 92 by a tube 94, and is directed from the opening 92a at the tip (lower end) of the nozzle 92 toward the material 88 to be welded. It is designed to be injected.
- the arc electrode 90 is supported by the end of a quadrangular prism-shaped arc electrode support member 111 in a downward direction, and the entire arc electrode portion is L-shaped.
- the arc electrode support member 111 includes a copper conductive member 91 and a ceramic tube 93 serving as an electrical insulating material covering the outer periphery of the conductive member 91. It is arranged inside 2 along the radial direction (the left-right direction in Fig. 15).
- An electric wire 115 is connected to the conductive member 91 by a screw 106, and a voltage is applied to the arc electrode 90 from a power source (not shown) via the conductive member 91. ing. Further, a cooling water channel 1 1 1 a is formed in the arc electrode supporting member 1 1 1, and the arc electrode 90 is cooled by flowing cooling water through the cooling water channel 1 1 1 a. .
- a U-shaped first vertical slide guide 95 is fixed to the side of the nozzle 92.
- the direction of the optical axis of the laser beam 82 (split laser beam 82a, 82b) irradiating the material 88 to be welded irradiation direction: Groove extending in the vertical direction 9 5 b is formed.
- the second vertical slide guide 96 has a rectangular parallelepiped shape, and a projection 96 b extending in the optical axis direction is formed on a side surface 96 a.
- the groove 95 b of the first vertical slide guide 95 and the projection 96 b of the second vertical slide guide 96 are fitted so as to be slidable in the optical axis direction.
- the vertical slide guide 96 is guided by the groove 95a of the first vertical slide guide 95 and moves in the optical axis direction.
- a fixing screw 97 is screwed into the first vertical slide guide 95.
- the second vertical slide guide 96 can be fixed by abutting on a (projection 96 b). That is, the set second vertical slide guide 96 (arc electrode 90) is securely fixed to the position adjusted by the vertical feed screw 122 with the fixing screw 97.
- a horizontal feed screw 98 with a hexagonal hole and a swing feed screw 99 are screwed into the second vertical slide guide 96 along the radial direction of the nozzle 92.
- the horizontal slide guide shaft 100 is fixed.
- the horizontal slide guide shaft 100 is slidably inserted into three holes 101 a formed in the L-shaped support member 101.
- the lateral feed screw 98 has a tapered end portion 98a, and a ⁇ J portion 98b is formed at the end of the distal end portion 98a.
- the distal end 98 a of the lateral feed screw 98 is rotatably inserted into the hole 101 b of the support member 101.
- the head 98b of the transverse feed screw 98 is rotatably arranged in another hole 101c formed ahead of the hole 101b in the holding member 101, and Even if the feed screw 98 is moved in the axial direction, it does not come out of the hole 101b. That is, the side feed screw 98 has a tip having a II part 98a. 9 8 force It is rotatably connected to the support member 101.
- the support member 101 is pushed or pulled by the force transverse feed screw 98, and is guided by the transverse slide guide shaft 100 so as to be directed in the optical axis direction. Move in the direction orthogonal to. That is, the support member 101 (the left and right position (the left and right position of the arc electrode 90)) can be adjusted by the lateral feed screw 98. At this time, the swing feed screw 99 is also provided. It is necessary to turn it so as not to hinder the traverse by the traverse feed screw 98 (see Fig. 20) .
- the inner end of the support member 101 (the right end in Fig. 15) and the arc The inner end (the left end in FIG.
- the 15) of the electrode support member 11 1 has a hinge structure that is movably connected via a swing pin (swing shaft) 102.
- the feed screw 9.9 is slidably inserted through the hole 101d of the support member 101.
- the swing feed screw 99 also has a thin tip 9a. A head 99b is formed at the tip of the tip 99a.
- the tip end 99 a of the swing feed screw 99 is inserted into the hole 1 1 1 b of the arc electrode support member 11 1, and the tip end 9 9 a of the swing feed screw 9 9 and the arc electrode support member 11 1 ⁇ Has a gap such that the arc electrode 90 can be inclined by a predetermined angle.
- the head 99b of the swing feed screw 99 is located in another hole 111c formed before the hole 111b in the arc electrode support member 111K. There is also a gap between the head 99 b and the arc electrode support member 111 so that the arc electrode 90 can be inclined by a predetermined angle, and the swing feed Even if the screw 99 is moved in the axial direction, the head 99b does not come out of the hole 111b. That is, the swinging feed screw 99 is rotatably and swingably coupled to the arc electrode supporting member 101 with the force of the tip portion 99 a having the head portion 99 b.
- the tilt angle of the arc electrode holding member 11 (the tilt angle of the arc electrode 60) can be adjusted by the swing feed screw 99.
- the first vertical slide guide 95 and the second vertical slide guide The guide 96 is covered by a rubber cover 103 which is detachably provided on the nozzle 92.
- the rubber cover 103 allows the inert gas 1 2 flowing through the nozzle 92.
- the arc electrode support member 1 As shown in FIGS. 15, 16 and 18, the arc electrode support member 1
- the outer end of 11 (the right end in FIG. 15) is fitted to a corrugated guide member 105 fixed to the side of the nozzle 92 and is slidable in the optical axis direction. It has become.
- the outer end of the arc electrode supporting member 111 is also covered with a rubber cover 103.
- the arc electrode adjustment mechanism includes an arc electrode position adjustment function, an arc electrode inclination angle adjustment function, and an arc electrode distance adjustment function. Is provided.
- a support member 101 that swingably supports the arc electrode support member 111, a first vertical slide guide 95 fixed to the side of the nozzle 92 of the contact head F19-2.
- the second vertical slide guide 9 guided in the optical axis direction of the laser beam 82 (divided laser beams 82a, 82b) applied to the workpiece 88 by the first vertical slide guide 95. 6 and the first vertical slide guide 95, and the distal end portion 95 a is rotatably connected to the support member 101 so that the support member 101 and the arc electrode support member 11 are rotatable.
- a swing feeder that is rotatably and swingably coupled to 1 1 1 and swings the arc electrode 90 together with the arc electrode support material 1 1 1.
- the second vertical slide guide 96, the supporting member 101, and the arc electrode are screwed into the first vertical slide guide 95, and the leading end of the screw is connected to the bottom of the second vertical slide guide 96.
- An arc electrode adjusting mechanism including a vertical feed screw 122 for moving the arc electrode 90 in the optical axis direction together with the support member 111 is provided.
- the arc electrode 90 is irradiated with the laser beam 82 (the divided laser beams 82a, 82t) irradiated on the material 58 to be welded. ) In the direction (arrow G direction) perpendicular to the optical axis direction 1 1 2 The position of the arc electrode 90 in the orthogonal direction with respect to the irradiation position 88a of the single light 82 (divided laser light 82a, 82b) can be adjusted.
- the position of the arc electrode 90 in the orthogonal direction can be appropriately adjusted.
- the arc electrode 90 is inclined with respect to the laser beam irradiation position 88a to adjust the right inclination angle of the arc electrode 90 with respect to the laser beam irradiation position 88a. can do. Specifically, when the swing feed screw 99 is turned, the arc electrode 90 swings as shown by the arrow M together with the arc electrode support member 111, so that the inclination angle of the arc electrode 90 must be adjusted appropriately. Can be.
- the distance between the laser light irradiation position 88a and the arc electrode 90 is adjusted by moving the arc electrode 90 closer to or away from the laser light irradiation position 88a. be able to. Specifically, by turning the vertical feed screw 122, the arc electrode 90 together with the second vertical slide guide 96, the support member 101, and the arc electrode support member 111 are positioned as shown by the arrow N. The distance between the laser beam irradiation position 88a and the arc electrode 90 can be appropriately adjusted because the laser beam can be moved in the optical axis direction 112.
- fine arrangement adjustment with respect to the arc electrode 90 can be performed by the arc electrode adjustment mechanism.
- Optimum arrangement conditions are selected to ensure that arc discharge to 8 and 8 can be prevented and that metal vapor 123 (see Fig. 20) adheres to the tip of the arc electrode. be able to.
- FIG. 23 is an essential sectional view of a laser-arc combined welding head according to a third embodiment of the present invention.
- a gas flow generating means is attached to the arc electrode holding member 61 in the first embodiment, and the gas flow generating means is used to attach the gas flow generating means to the axis of the arc electrode 40.
- the gas flow along the stream 6 4 is ejected. That is, as the gas flow generating means, a collect holter of the arc electrode support member 61 is used.
- An upper end of an auxiliary nozzle 66 fitted to the arc electrode 40 with a predetermined circumferential gap is connected to a lower end of the arc electrode 40, and the auxiliary nozzle 67 in the arc electrode support member 61 is provided with a fuse.
- An inert gas such as an alcohol gas is introduced from a gas supply source (not shown) via a versal elbow 68 and a hose 69.
- the inert gas introduced into the insulating cover 67 passes through a groove passage (not shown) between the inner surface of the insulating cover 67 and the outer peripheral surface of the cooling block 70, and passes through the collect holder 6. 5 flows through the gas passage 71 formed inside, and from here the collet chuck
- the gas flows into the auxiliary nozzle 66 through a groove passage (not shown) formed on the outer peripheral surface of the nozzle 72, and from there, flows through the circumferential gap with the arc electrode 40 to be jetted as the gas flow 64 described above. ing.
- the arc electrodes 40 are introduced from the tubes 44 and are ejected from the vertically split type nosno L42. Separately from the inert gas 51, the auxiliary nozzle 66, the gas flow 64 along the axis of the arc electrode 40 has a predetermined flow velocity (faster than the inert gas 51 by setting the passage diameter, (A flow rate that does not adversely affect the temperature of the arc electrode 40). The adhesion of the metal vapor to the arc electrode 40 is further prevented.
- the arc electrode 40 can be placed as close as possible to the laser beam irradiation position on the workpiece 38, improving the efficiency of arc welding and maximizing the effect of the laser-arc composite welding head. can do.
- FIG. 24 is a cutaway view of a laser-arc composite welding head according to a fourth embodiment of the present invention
- FIG. 25 is a perspective view of a cutaway view of a main part
- FIG. FIG. 27 is a switching circuit diagram of the arc electrode according to the developed example.
- the gas flow occurrence in the third embodiment is This is applied to a laser-arc combined welding head in which a step is arranged outside a laser beam and an arc electrode is integrally installed in the laser beam welding head.
- the tip of the optical fiber 131 is connected to the upper part of the main body of the laser-arc combined welding head 19-4.
- the base end of the optical fiber 13 1 is connected to a YAG laser oscillator (not shown), and the laser light 13 2 oscillated from the YAG laser oscillator is transmitted by the optical fiber 13 1 and welded. Heads 1 9 1 4 are introduced.
- the laser beam 132 coming out of the tip of the optical fiber 131 is finally collected by the condenser lens group of the various lens groups 133 provided in the welding head 19-4.
- the material to be welded 134 such as a top plate is irradiated.
- a ring-shaped arc electrode support member 1336 is provided on the inner surface of the lower nozzle 135b of the upper and lower divided nozzles 135a and 135b via a holding nut 1337.
- the arc electrode support member 1336 supports the arc electrode 1338 at a position outside the laser beam 132.
- a plurality of (eight in the illustrated example) oblique holes 13 for supporting the electrode are formed in the arc electrode supporting member 1336 at equal intervals in the circumferential direction.
- slits 140 as gas flow generating means are formed on both sides of these oblique holes 13 9, and the gas flow along the axis of the arc electrode 1 38 is formed by the slits 140. Force eruption ⁇ It is supposed to occur.
- ⁇ 1 passes through the gas passageway 144 formed in the lower nozzle 135b in the jacket 142 formed by the holding nut 1337 above the arc electrode support member 1336.
- An inert gas such as an argon gas is introduced from a gas supply source (not shown) through the right-angle elbow 144 and the tube 144, and the introduced inert gas is supplied to the gas flow from each of the slits 140. It spouts out as 1 4 1.
- a conducting pipe 144 is penetrated through the lower nozzle 135b in a ring shape.
- a right angle elbow 147 and a tube 148 are connected to 46.
- An electric wire (not shown) is connected to the E pipe 146, and a voltage is applied to the arc electrode 138 from a power source (not shown) via the pipe 146.
- Cooling water from the elbow 147 and the tube 148 is circulated in the eve 146 so that the arc electrode 138 is water-cooled.
- 150 is a fixing screw that is screwed into the lower nozzle 1 35 b to fix the arc electrode 1 38, and 1 51 is a welded material of the welding head 1 9-4 1
- Positioning rod for positioning in the height direction with respect to 34, 15 2 is an inert gas such as argon gas for cooling and protecting the lenses of various lens groups 13 in the welding head 19 4
- An inlet hole for introducing the gas from a gas supply source (not shown) through the oblique elbow 153 and the tube 154 is a shield cup.
- the arrangement adjustment of the arc electrode 1 38 by the arc electrode adjusting mechanism described in the first to third embodiments is not performed.
- the slits 14 on both sides of the arc electrode 13 Gas flow along the axis 14 1 Force is ejected at a predetermined flow velocity (faster than the inert gas from the inlet hole 152 by setting the slit diameter, but at a flow rate that does not adversely affect the welding bead).
- the arc electrode 138 can be brought as close as possible to the laser beam irradiation position of the material to be welded 134, thereby improving the efficiency of arc welding and improving the laser-arc combined welding.
- the arc electrode 1388 disposed outside the laser beam 132 is integrally installed in the welding head 1914 of the laser beam 132.
- the welding device can be made much more compact than when the welding head of the arc electrode 138 is separated.
- arc electrode supporting member 13 36 by forming a plurality of oblique holes 13 9 and slits 140 in the arc electrode supporting member 13 36, as shown in FIG.
- eight (8) arc electrodes 13 can be appropriately attached via insulating means.
- switch means 1556 that can select the arc electrode 1338 depending on the welding direction is connected to each arc electrode 1338.
- the moving direction (welding direction) of the welding head when the moving direction (welding direction) of the welding head is, for example, rightward (see the direction of arrow F in FIGS. 11 and 20), one metal vapor is generated. Generally, it flows to the left (upstream in the moving direction of the welding head) from the laser irradiation position. For this reason, in order to prevent adhesion of metal vapor, it is generally desirable to move (arrange) the arc electrode downstream of the laser beam irradiation position in the welding head moving direction. Further, the welding head 19 in the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.
- the arc electrode adjusting mechanism is not limited to the laser beam splitting method of the first to third embodiments, but is widely applied to a laser-arc composite welding head in which the laser beam and the arc electrode are coaxial. Can be applied.
- the gas flow generating means can be widely applied to a laser-arc combined welding head of a laser beam splitting method having no arc electrode adjusting mechanism.
- the reference positioning mechanism in the welding system according to the embodiment of the present invention shown in FIG. 1 is basically a butt for welding by butt-welding end faces of workpieces placed on the upper surface of a table 3 (see FIG. 1).
- a table 3 Prior to welding, one end of the material to be welded is brought into contact with the upper surface of table 3 to protrude upward from the upper surface of table 3 to position the end surface of the material to be welded, and is retracted downward from the upper surface of table 3 during welding.
- the reference plate 12 (refer FIG. 2) comprised so that it may perform. Therefore, the one shown in Fig. 28 is conceivable.
- FIG. 28 is a diagram showing the reference plate 12 and its vicinity extracted and extracted.
- (A) is a perspective view showing the reference plate 12 protruding from the upper surface of the table 3
- (b) is a cross-sectional view showing the reference plate 12 in a state where it is retracted from the upper surface of the table 3.
- the reference plate 12 is fitted in a groove 3a formed in the table 3 in a vertical direction, and is formed so as to move up and down along the groove 3a.
- driving means not shown
- driving means such as an air cylinder and protrudes from the upper surface of the table 3.
- the steel sheet 1 is brought into contact.
- the steel plate 1 is retracted downward from the upper surface of the table 3 by being lowered along the groove 3a as shown in (b).
- the reason for using copper is that it not only reflects laser light during laser welding but also has a good thermal conductivity, so that heat during welding can be well released.
- the reference plate 12 projects upward from the upper surface of the table 3 through the groove 162 as shown in FIG. 28 (a) when the steel plates 1 are butted, and 28 As shown in Figure (b), the upper surface is lowered to a position where it is flush with the bottom surface of the groove 162.
- the groove 16 2 needs to be formed below the welding head 19, that is, at a position along the welding line in order to store the welding powder 16 3. Since the reference plate 12 faces the groove 162, the welding accumulated in the groove 162 in the gap between the reference plate 12 and the groove 16 Powder 163 may enter, and if welding powder 163 enters the gap, it may not be possible to ensure sufficient positional accuracy when the reference plate 12 projects.
- the accuracy of the welding line is required to be as tight as about ⁇ 100 o
- FIG. 29 is a cross-sectional view showing the reference positioning mechanism in the butt welding according to the embodiment of the present invention in a state where the reference plate is raised
- FIG. 30 is a view taken along line L-L of FIG.
- Fig. 31 is an enlarged view showing the adjustment of the amount of rotation of the lever in the case shown in Fig. 29
- Fig. 32 is an enlarged view showing the structure
- Fig. ⁇ It is a sectional view showing a state where a plate is lowered.
- the table 17 1 and the table 17 2 that form a horizontal plane are divided into two along a force welding direction having the same function as the table 3 shown in FIG.
- the first table 171 which is a fixed table, holds the steel plate 1 for positioning by abutting on the reference plate 1731.
- the second table 172 which is a movable table, is for placing the steel plate 2 whose end surface is to be brought into contact with the end surface of the steel plate 1 after the determination.
- the second table 17 2 is formed so as to be movable in the horizontal direction on the base 180.
- the second table 172 is separated from the first table 171.
- the reference plate 173 projects from the upper surface of the first table 171.
- the reference plate 173 is fixed to the tip of an L-shaped lever 174 rotating around a point j below the upper surface of the first table 171.
- the lever 1 74 has a base end at a point below the upper surface of the first table 1 1, and the first 1 7 4 It is rotatably attached to a table 17 1.
- an adjusting bolt 176 is screwed so as to protrude from the end face of the lever 174.
- the tip of the adjusting bolt 176 contacts the contact part 171 a of the end face of the first TF 171 as the lever 174 rotates counterclockwise.
- the rotation of the lever 1 74 in the opposite direction i is restricted. That is, as shown in FIG. 31 in detail, by adjusting the amount of protrusion of the adjusting bolt 1176 from the lever 1774, the horizontal direction of the reference plate 1773 (left and right in FIG. Direction) can be adjusted.
- the position of the welding line which is the end face of the steel sheet, is adjusted by rotating the adjustment bolt 1 ⁇ 6 to adjust the amount of protrusion by ⁇ -1 so that the welding line is positioned exactly below the welding head 19.
- the air cylinder 1 7 7 has its base end at the bottom of the first bed 1 7 It is rotatably mounted via a pin 8 and is rotatably connected to the distal end of the piston rod 177a or the center of the lever 174 via a pin 179.
- the state in which the piston rod 177a is extended most by driving the air cylinder 177 is the state shown in FIG. 29, and the state in which the piston rod 177a is most contracted is the state shown in FIG.
- Lever 17 4 rotates about the pin 1 7 5 in the direction indicated by the arrow in FIG. 3 so that the lever 17 4 moves from the upper surface of the first table 17 1 as shown in FIG. It will be evacuated downward.
- a projecting portion 17 2 a and a step portion 17 1 b into which this is fitted are formed at a contact portion between the first table 17 1 and the second table 17 2.
- the projecting portion 17 2 a is formed at the end of the second table 17 2 so as to project horizontally to the end face side of the first table 17 1.
- the groove 162 along the welding line, which is the movement locus of the welding head 19, is buried in the projection 17a.
- the second table 17 2 when positioning the end face of one of the steel plates 1, as shown in FIG. 29, the second table 17 2 is separated from the first table 17 1.
- the reference plate 173 is moved upward from the upper surface of the first table 171. This is performed by driving the air cylinder 177 in the state shown in FIG. 32 and extending the piston rod 177a. That is, the extension of the piston lot 177a causes the lever 174 to rotate counterclockwise about the pin 175 as a rotation center. The rotation of the lever 174 is restricted and stopped when the distal end surface of the adjustment bolt 176 comes into contact with the contact portion 171a of the first bed 171. That is, it is positioned at this position.
- the air cylinder 177 is driven to cause its piston rod 177 a ⁇ to retract.
- the lever 1 7 4 is pulled out due to the retraction of the piston rod 17 7 a.
- the reference plate 1733 is retracted downward from the upper surface of the first table 171, by rotating clockwise around the pin 1775.
- the second bed 17 2 is moved toward the first bed 17 1, and its end face is brought into contact with the end face of the first bed 17 1.
- the projecting portion 172a fits into the step portion 171b and closes the space above the reference plate 173.
- the steel sheet 2 is moved toward the butted end face of the steel sheet 1, the end faces of the steel sheets 1 and 2 are butted against each other, and in this state, the presser fitting 14 is lowered to clamp the end of the steel sheet 2 from above.
- the air cylinder 177 is used as a driving means, and the lever 174 is rotated to move the reference plate 173 up and down.However, the present invention is not limited to this. .
- a driving means a motor or the like is conceivable, and a structure in which the reference plate 173 is moved up and down by rotating a lever may not be used.
- the reference plate 173 may be configured to move up and down linearly.
- the first bet 1 7 1 and the second bet 1 7 2 are divided into two, and when the reference plate 1 7 3 is retracted, the space above it is the first bet 17 1 and the second bet 1 This is because they are closed by the contact of 72. That is, the welding powder 16 3 (see Fig. 28) during welding does not enter the space where the reference plate 1 73 is retracted.
- the transfer device in the welding system according to the embodiment of the present invention shown in FIG. 1 basically includes a work piece placed on the upper surface of a table 3 (see FIG. 1) and a reference plate 12 (see FIG. 1).
- a table 3 see FIG. 1
- a reference plate 12 see FIG. 1.
- any material may be used as long as it can be transported toward the end surface of one of the workpieces whose positioning has been completed by abutting against the reference plate 12. Therefore, for example, the one shown in Fig. 2 can be considered.
- the positioning work of the steel plates 1 and 2 by the moving claws 8 and 9 as described above is effective when the steel plates 1 and 2 are rectangular or square. If the steel plate 2 is trapezoidal as shown by the two-dot chain line in FIG. Not applicable to That is, the steel sheet is a deformed steel sheet other than a rectangular or square steel sheet. On the other hand, there is also an application for butt welding deformed steel sheets, and it is necessary to cope with this.
- FIGS. 33 and 34 are side views extracting and showing the main 3 ⁇ 4f of the transfer arm in the transfer device according to the present embodiment.
- FIG. 33 is a normal state (non-operating state). The figure shows the state at the time of operation.
- the transport arm according to the present embodiment includes a base III, a driving means IV, and a grip portion V, and together with the base III, the driving means IV and the grip portion V are also linear.
- the drive means IV moves the section V forward. (In the direction approaching the deformed steel sheet), and the groove V forms the ridge of the deformed steel sheet.
- the base III has a horizontal base ⁇ 2 1 1, a vertical member 2 1 2, which is provided vertically on the base plate 2 1 1, and projects forward from the tip of the vertical member 2 1 2 to be deformed at the tip.
- ⁇ ⁇ ⁇ It has an L-shaped support member 213 supporting the plate from below, and has a driving means IV to which the tip of an air cylinder 218 having a driving means IV is fixed.
- the air cylinder 2 14 expands and contracts the piston rod 2 14 a in the horizontal direction, and the moving member 2 15 fixed to the tip of the piston rod 2 14 a is fixed to the base plate 2 1 1. It moves linearly in the horizontal direction along the guide portion ⁇ 2 16.
- the indented portion V has a lower lever 2 18 whose base end is rotatably attached to the moving member 2 15 by a pin 2 17 and a pin 2 1 at the center of the lower lever 2 18.
- 9 has an upper lever 220 attached rotatably.
- the lower f-lever 21 and the upper lever 220 move integrally by the linear movement of the moving wood 2 15 accompanying the driving of the air cylinder 2 14.
- a pin 2 21 is provided in the middle of the pins 2 17 and 2 19 of the lower lever 2 18, and the roller 2 2 2 attached to the pin 2 21 is a vertical member 2. It is fitted in a long hole 2 12a provided in the longitudinal direction of the length 12.
- the long hole 212a is a hole extending substantially in the horizontal direction, and is configured such that its position in the vertical member is slightly higher toward the tip.
- the pin 221 and the roller 222 are located at the rearmost part (the right end in the figure) of the elongated hole 212a, and the highest part of the upper lever 220 is ⁇ .
- the force is at a position lower than the highest part of the support member 2 13.
- the pin 2 21 and the roller 2 2 2 move along the long hole 2 1 2 a as the moving member 2 15 moves with the driving of the air cylinder 2 14.
- the lower lever 218 is slightly rotated clockwise in the figure as the pin ⁇ rotation center to raise the position of the tip.
- the upper end surface position of the distal end of the lower lever 218 coincides with the upper end position of the distal end of the support member 213. In other words, the deformed steel sheet is supported at this height from the T direction.
- the upper lever 220 is an L-shaped member, the base end of which is suspended downward from the pin 219, and the lower end thereof is moved forward with the lower lever 218, It comes into contact with a contact member 223 projected horizontally from the support member 213.
- the lower lever 218 is further moved forward in such a contact state, whereby the upper lever 220 is rotated counterclockwise in the drawing around the pin 221 as a rotation center.
- the lower surface of the distal end of the upper lever 220 is brought into close contact with the upper surface of the distal end C of the lower lever 218.
- the spring containing the deformed steel plate can be adjusted by the spring 224. That is, one end of the spring 2 224 is fixed to the lower lever 218 and the other end is fixed to the upper lever 220, respectively. A rotating force rotating in a clockwise direction is constantly applied to the upper lever 220.
- the steel plate detection sensor 2 25 is provided at the tip of the support member 2 13 and sends out a detection signal when the distance to the deformed steel plate becomes less than a predetermined value. Can be formed.
- the extension state detection sensor 2 26 is disposed on the upper end surface of the tip of the lower lever 2 18 C, and when the upper lever 220 reaches the end, the detection signal is detected. This is also transmitted by a proximity sensor, for example.
- Such a transfer arm is entirely in contact with an object to be subjected to the loading operation, such as a deformed steel plate. To be moved. At the time of the approach operation, the entire transfer arm is moved leftward in the drawing. When the steel plate detection sensor 222 disposed on the support member 213 at the end of this movement is located below the deformed steel plate, the steel plate detection sensor 225 detects the presence of this deformed steel plate. To detect. The entire movement of the transfer arm is stopped at this point.
- the drive means IV ie, the air cylinder 2 14 is driven to move the moving member 2 15 forward (to the left in the figure; the same applies hereinafter) to move the lower lever 2 18 and the upper lever. Move 1 2 0 in the same direction.
- the lower lever 2 18 rotates counterclockwise around the pin 2 17 by the pin 2 2 1 and the roller 2 2 that move along the long hole 2 1 2 a with this movement. While being raised to that position.
- the upper lever 220 is rotated counterclockwise around the pin 219 as the lower portion of the upper lever 220 contacts the contact member 223 and moves further forward while being pressed. I do.
- the upper end surface of the lower lever 210 is flush with the upper end surface of the distal end of the support member 213, and the lower force, the deformed steel plate, etc. to support the, the E in profiled steel plate between the upper lever one 2 2 0 and the lower lever 2 1 8 can ⁇ free it.
- the normal state is detected by the state detection sensor 2 26.
- FIG. 35 is an explanatory view conceptually showing an aspect at the time of butting using the transfer device having the transfer arm according to the above embodiment.
- the figure shows a case where a deformed steel plate 2 27 is butted against a steel plate 1, and the same parts as those in FIG. 2 are denoted by the same reference numerals.
- the deformed steel sheet 227 is butted against the steel sheet 1.
- the present embodiment has two transfer arms shown in FIGS. 33 and 3411 (the number is not particularly limited). A and B in the figure are the transfer arms.
- FIG. 35 the same parts as those in FIG. 2 are denoted by the same reference numerals. For this reason, a duplicate description will be omitted.
- the transfer arms A and B are moved along the groove 11 to individually cover the ends of the deformed steel plates 27. That is, since the transfer arm A is located below the deformed steel plate 227 first, the transfer arm A performs the prying operation at this position, and Wait in a state. The transfer arm B moves further forward and performs a picking operation while being engaged below the deformed steel plate 227. The force, and thus the deformed steel plate 227, is brought into a state in which the transfer arms A and B cover the two ends. In this state, the transfer arms A and B are synchronized and moved in parallel toward the butted surface of the steel plate 1 by the same amount.
- the welding system according to the present invention is useful as a system for performing butt welding such as tailored blank welding.
Landscapes
- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/009,442 US6600133B2 (en) | 2000-04-10 | 2001-04-10 | Welding system |
| EP01919848A EP1273383B1 (en) | 2000-04-10 | 2001-04-10 | Welding system |
| DE60140664T DE60140664D1 (de) | 2000-04-10 | 2001-04-10 | Schweisssystem |
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000108503A JP2001287073A (ja) | 2000-04-10 | 2000-04-10 | 溶接システム |
| JP2000-108492 | 2000-04-10 | ||
| JP2000-108503 | 2000-04-10 | ||
| JP2000-108504 | 2000-04-10 | ||
| JP2000108492 | 2000-04-10 | ||
| JP2000-108505 | 2000-04-10 | ||
| JP2000108504A JP2001287089A (ja) | 2000-04-10 | 2000-04-10 | 異形板材の搬送アーム及びこれを有する搬送システム |
| JP2000108505A JP2001287090A (ja) | 2000-04-10 | 2000-04-10 | 突合せ溶接における基準位置決め機構 |
| JP2001-71400 | 2001-03-14 | ||
| JP2001071400A JP3457952B2 (ja) | 2000-04-10 | 2001-03-14 | レーザ・アーク複合溶接ヘッド |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001076806A1 true WO2001076806A1 (en) | 2001-10-18 |
Family
ID=27531488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/003062 Ceased WO2001076806A1 (en) | 2000-04-10 | 2001-04-10 | Welding system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6600133B2 (ja) |
| EP (1) | EP1273383B1 (ja) |
| DE (1) | DE60140664D1 (ja) |
| WO (1) | WO2001076806A1 (ja) |
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2001
- 2001-04-10 US US10/009,442 patent/US6600133B2/en not_active Expired - Lifetime
- 2001-04-10 EP EP01919848A patent/EP1273383B1/en not_active Expired - Lifetime
- 2001-04-10 DE DE60140664T patent/DE60140664D1/de not_active Expired - Lifetime
- 2001-04-10 WO PCT/JP2001/003062 patent/WO2001076806A1/ja not_active Ceased
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179382A3 (en) * | 2000-08-10 | 2004-08-18 | Mitsubishi Heavy Industries, Ltd. | Laser beam machining head and laser beam machining apparatus having same |
| CN107900593A (zh) * | 2017-12-25 | 2018-04-13 | 苏州明氏自动化技术有限公司 | 动铁喇叭传导杆焊接用多功能装置 |
| CN107900593B (zh) * | 2017-12-25 | 2023-10-31 | 苏州格洛佛精密科技有限公司 | 动铁喇叭传导杆焊接用多功能装置 |
| CN114178701A (zh) * | 2021-12-06 | 2022-03-15 | 中国兵器科学研究院宁波分院 | 7b52铝合金激光-电弧复合焊接定位装置及其使用方法 |
| CN114178701B (zh) * | 2021-12-06 | 2024-05-14 | 中国兵器科学研究院宁波分院 | 7b52铝合金激光-电弧复合焊接定位装置及其使用方法 |
| CN114309941A (zh) * | 2022-01-13 | 2022-04-12 | 上海蓝魂环保科技有限公司 | 一种金属薄板结构卷边焊接施工组合工具及方法 |
| CN117483974A (zh) * | 2023-11-21 | 2024-02-02 | 江苏华锐冶矿电力机械有限公司 | 一种防偏移的耐高压炉管智能化矫切系统 |
| CN117483974B (zh) * | 2023-11-21 | 2024-05-10 | 江苏华锐冶矿电力机械有限公司 | 一种防偏移的耐高压炉管智能化矫切系统 |
| CN117415551A (zh) * | 2023-11-24 | 2024-01-19 | 深圳市精创科技有限公司 | 一种工装支撑机架及其制备工艺 |
| CN118559334A (zh) * | 2024-06-24 | 2024-08-30 | 东风友联(十堰)汽车饰件有限公司 | 一种车桥用上推力杆支架总成焊接定位夹紧装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020158055A1 (en) | 2002-10-31 |
| EP1273383A4 (en) | 2007-09-05 |
| US6600133B2 (en) | 2003-07-29 |
| EP1273383B1 (en) | 2009-12-02 |
| EP1273383A1 (en) | 2003-01-08 |
| DE60140664D1 (de) | 2010-01-14 |
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