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WO2023247056A1 - Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux - Google Patents

Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux Download PDF

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Publication number
WO2023247056A1
WO2023247056A1 PCT/EP2022/067443 EP2022067443W WO2023247056A1 WO 2023247056 A1 WO2023247056 A1 WO 2023247056A1 EP 2022067443 W EP2022067443 W EP 2022067443W WO 2023247056 A1 WO2023247056 A1 WO 2023247056A1
Authority
WO
WIPO (PCT)
Prior art keywords
vice
carrier
workpiece
along
axis
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
Application number
PCT/EP2022/067443
Other languages
German (de)
English (en)
Inventor
Dieter Mosig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hemo AG
Original Assignee
Hemo AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hemo AG filed Critical Hemo AG
Priority to EP22735180.6A priority Critical patent/EP4536437A1/fr
Priority to PCT/EP2022/067443 priority patent/WO2023247056A1/fr
Publication of WO2023247056A1 publication Critical patent/WO2023247056A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/02—Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian coordinate type
    • B25J9/023—Cartesian coordinate type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/066—Bench vices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1431—Work holder changers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/02—Gripping heads and other end effectors servo-actuated
    • B25J15/0253—Gripping heads and other end effectors servo-actuated comprising parallel grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2230/00—Special operations in a machine tool
    • B23Q2230/006—Machining both ends of a workpiece consecutively

Definitions

  • the invention relates to a method for clamping a workpiece between two vices, a clamping device for clamping a workpiece between two vices and a set comprising the clamping device according to the preambles of the independent claims.
  • a first vice with a workpiece clamped therein and already machined at the non-clamped end is arranged with a robot arm on a support of a transformer device, which is opposed by a second vice at a distance.
  • the second vice with the clamping device is then moved towards the first vice and the workpiece clamped in the first vice is clamped at its already machined end in the second vice.
  • the workpiece is then released through the first vice and thereby handed over to the second vice.
  • the second vice with the workpiece clamped in it is then removed from the transformer device using the robot arm and fed to a machine tool for further processing of the workpiece.
  • a workpiece to be clamped is arranged with a first vise on a guide of a chucking device and placed, guided, on a support surface between the jaws of an opened second vise, which is arranged on a support of the chucking device.
  • the workpiece is held there by means of a pressure ram of the transformer device while the first vice is opened and removed.
  • the second vice is then closed and the workpiece is clamped in it.
  • the second vice with the workpiece clamped therein is then removed from the clamping device and fed to a machine tool for further processing of the workpiece.
  • the prior art clamping device disclosed here has the disadvantage that the workpiece is temporarily clamped neither in the first nor in the second vice during the clamping process, which has a disadvantageous effect on the manufacturing precision. Also
  • the task is therefore to provide a technical solution with which the previously mentioned disadvantages of the prior art can be at least partially avoided.
  • a first aspect of the invention relates to a method for clamping a workpiece between two vices.
  • a first vice with a workpiece clamped therein is provided and arranged on a first receiving surface of a first carrier of a transformer device, preferably by means of a robot arm.
  • the workpiece was previously machined in a machine tool at its non-clamped end (unclamped body contour according to the claim), clamped in this first vice.
  • a second vice which is to take over the workpiece, is also provided on a second receiving surface of a second carrier of the transformer device.
  • the two supports with the first and second vices arranged on them are placed in a first
  • the two carriers are moved relative to one another in a second direction, which direction runs transversely, in particular perpendicular to the first direction.
  • This additional movement of the carriers relative to one another in the second direction makes it possible to influence the position of the unclamped free end of the workpiece between the jaws of the second vice and thus to enable an optimal clamping situation in the second vice, even for asymmetrical workpieces.
  • This also makes it possible to load the transformer device with the first vice, i.e. H . by arranging the first vice with the workpiece clamped in it on the receiving surface of the first carrier, in an area outside the actual re-clamping zone, so that even with a compact design of the re-clamping device, there is enough space available for robot arms with universal grippers or multiple grips to be used remotely.
  • Another advantage is that this enables the use of vices with a fixed jaw, which is suitable for various applications.
  • the two vices are used to position them relative to one another in such a way that they can be in the desired transfer or Takeover positions are located, moved relative to one another in two transverse, preferably perpendicular first and second directions. proceed, with at least one of these two directions of movement running transversely, in particular perpendicular to the closing direction of the second vice.
  • This movement is accomplished either by only one of the two vices with the associated carrier of the transformer device being moved in both directions relative to the other fixed vice, or by each of the two vices with its respective carrier relative to the other vice in one of the two directions is moved.
  • the invention relates to a method for clamping a workpiece between two vices, wherein a first vice with a workpiece clamped therein is provided and arranged on a first receiving surface of a first carrier of a clamping device.
  • a second vice is also provided on a second receiving surface of a second carrier of the transformer device.
  • the two carriers with the vices arranged thereon are moved towards one another in a first direction transverse to the closing direction of the second vice in such a way that the workpiece clamped in the first vice is arranged with its unclamped free end between the jaws of the second vice.
  • the workpiece is clamped in the second vice and then the first vice is opened to transfer the workpiece to the second vice.
  • first vise and second vise each also refer to arrangements of several first or second vices, which can be arranged, for example, on pyramid-shaped, tower-shaped or cube-shaped support bodies.
  • first vice arrangement comprising several first vices in which workpieces are clamped, which workpieces are then placed in the transformer device according to the method on several individual second vices or on one or more second ones Vice arrangements comprising several second vices can be clamped.
  • it is also intended to clamp the workpieces of several individual first vices onto the second vices of one or more second vice arrangements.
  • the receiving surfaces of the supports of the transformer device are preferably additionally equipped with devices for rotating the support bodies.
  • the first carrier with the first vice arranged thereon with the workpiece clamped therein is moved in the second direction from a loading position in which the first vice with the workpiece clamped therein is arranged on its receiving surface into one Move to the transfer position in which the second vice is opposite the first vice at a distance. Then or at the same time the second carrier is attached with the
  • MUE / June 22, 2022 P188220PC00 7 ordered the second vice to move in the first direction to the workpiece provided with the first vice in the transfer position, into its transfer position.
  • the first carrier with the first vice arranged thereon with the workpiece clamped therein is moved in the second direction in a first plane into its transfer position, which z. B. can take place along an arcuate, in particular circular arc-shaped, first path or along a linear first axis.
  • the second carrier with the second vice arranged thereon is moved in the first direction towards the workpiece provided with the first vice in the transfer position in a second plane into its takeover position, which z. B. can take place along an arcuate, in particular circular arc-shaped, second path or along a linear second axis.
  • Circular arc-shaped paths can e.g. B. can be created through the use of turntables, while movement along linear axes can be created through the use of linear guides.
  • first level and the second level or the first axis and the second axis run perpendicular to each other.
  • the vice with the workpiece clamped therein is removed from the clamping device and thus from the second carrier and, for example, fed to a machine tool for further processing of the workpiece.
  • the arrangement of the first vice with the workpiece clamped therein on the first receiving surface of the first carrier takes place in a loading position in which the first carrier and the second carrier (or the second vice arranged thereon) do not face each other.
  • the first vice with the workpiece clamped in it can be arranged outside the actual transforming zone, so that plenty of space can be made available and the use of robot arms with multiple grips as well as vice arrangements with several display blocks is possible.
  • Arranging the first vice with the workpiece clamped therein on the receiving surface of the first carrier and/or removing the second vice with the workpiece clamped therein from the second carrier is advantageously automated, preferably by means of a robot arm. In this way the advantages of the invention become particularly clear.
  • the receiving surfaces of the carriers each provide a pairing half of a zero-point clamping system and the first vice and the second vice use an assigned pairing half of the zero-point clamping system on the respective receiving surface be attached.
  • the first vice with the workpiece clamped therein is additionally moved in a third direction along an arcuate, in particular circular arc-shaped third path or along a linear third axis in the first plane before clamping the workpiece in the second vice with the first carrier, which in particular runs perpendicular to the first axis.
  • the second vice before clamping the workpiece in this with the second carrier additionally in a third direction along an arcuate, in particular circular arc-shaped third path or along a linear third axis in a third plane, which The third plane is in particular parallel to the first plane, the third axis preferably running perpendicular to the first axis.
  • This additional third axis significantly increases the flexibility of the method with regard to the transfer of different and/or asymmetrically shaped workpieces.
  • At least the second vice has a fixed jaw and a movable jaw.
  • the workpiece clamped in the first vice is pressed with the first vice against the fixed jaw of the second vice before this workpiece is clamped in the second vice.
  • the fixed jaw of the second vice is clamped before clamping
  • the first vice with the workpiece clamped therein is provided in the transfer position so as to be displaceable along the closing direction of the second vice when the workpiece is clamped in the second vice, so that the first vice with the workpiece clamped therein Clamping the workpiece in the second vice in a potentially overdetermined re-clamping situation together with the first carrier can be moved by the second vice along the closing direction of the second vice.
  • the second vice when the workpiece is clamped therein, the second vice is provided so as to be displaceable along its closing direction in the takeover position, so that the second vice when the workpiece is clamped therein in a potentially overdetermined re-clamping situation together with the second carrier through the Workpiece can be moved along its closing direction.
  • first and second vices are mechanical vices and their opening and closing is carried out using vice drives provided by the transformer device, advantageously automated.
  • first and second vices are fluid-operated vices, in particular via compressed air or
  • MUE / June 22, 2022 P188220PC00 11 vices operated via hydraulic fluid and their opening or Closing is accomplished by means of fluid energy, in particular by means of compressed air or hydraulic fluid, which is provided via feed openings arranged in the area of the receiving surfaces of the first and second carriers.
  • a second aspect of the invention relates to a clamping device for clamping a workpiece between two vices using the method according to the first aspect of the invention.
  • the transformer device comprises a first carrier with a first receiving surface for a first vice and a second carrier with a second receiving surface for a second vice.
  • one of the two carriers can be moved both in a first direction and in a second direction relative to the other carrier, which first and second directions run transversely, in particular perpendicular to one another, for positioning the vices relative to one another in such a way that the The first vice is in a transfer position and the second vice is in a takeover position.
  • one of the two carriers is movable in a first direction relative to the other of the two carriers, and the other of the two carriers is movable in a second direction relative to the first-mentioned carrier, these first and second directions transversely, in particular perpendicular to one another run, for positioning the vices relative to one another in such a way that the first vice
  • the inventive design of the clamping device which, compared to known solutions, enables an additional movement of the carriers relative to one another in the second direction, makes it possible to influence the position of the unclamped free end of the workpiece between the jaws of the second vice and thus also in asymmetrical vices To enable each workpiece to have an optimal clamping situation in the second vice.
  • This also makes it possible to load the transformer device with the first vice, i.e. H . arranging the first vice with the workpiece clamped therein on the receiving surface of the first carrier, in an area outside the actual re-clamping zone, so that even with a compact design of the re-clamping device, there is enough space available to remote robot arms with universal grippers or multiple grippers use .
  • Another advantage is that this enables the use of vices with a fixed jaw, which may be desirable for various applications and enables significant savings in the investment costs for the vices of an automated production line.
  • the first carrier of the transformer device is preferably movable in the second direction in a first plane, preferably along an arcuate, in particular circular arc-shaped, first path or along a linear first axis.
  • the second carrier of the transformer device is preferably movable in the first direction towards the second carrier in a second plane, preferably along an arcuate, in particular circular arc-shaped, second path or along a linear second axis.
  • first level and the second level or the first axis and the second axis run perpendicular to each other.
  • the first carrier and the second carrier can preferably be positioned relative to one another in such a way that the first receiving surface and the second receiving surface face each other at a distance from one another, the distance being changeable by moving the second carrier in the first direction along the second axis, to make this possible
  • a workpiece is transferred between a first vice arranged on the first receiving surface and a second vice arranged on the second receiving surface.
  • the first and second receiving surfaces of the carriers each have a pairing half of a zero-point clamping system, to form a zero-point clamping connection with a first or second vice, which has a corresponding complementary pairing half of the zero-point clamping system.
  • first and second carriers each include a locking mechanism of the zero-point clamping system, and in particular that this locking mechanism is actuated by fluid energy, in particular is actuated hydraulically or pneumatically. This facilitates automated vice changing.
  • Plane can be moved along a first axis, the first carrier can also be moved starting from the transfer position along the first axis into a loading position in such a way that the first carrier and the second carrier do not face each other.
  • This makes it possible to load the transformer device with the first vice, i.e. H . by arranging the first vice with the workpiece clamped therein on the receiving surface of the first carrier, in an area outside the actual re-clamping zone, so that even with a compact design of the re-clamping device, there is enough space available for robot arms with universal grippers or multiple grippers to use .
  • the first carrier with the first vice arranged thereon and the workpiece clamped therein in the second direction in the first planes along an arcuate, in particular circular arc-shaped first path or along a linear first axis in its Transfer position is movable
  • the first carrier is also movable in a third direction in the first planes along a third axis, which third axis runs transversely, preferably perpendicular to the first axis.
  • the second carrier is also movable in a third direction in a third plane, which is preferably parallel to the first plane, along a third axis, which is third
  • Axis runs transversely, preferably perpendicular to the first axis.
  • This third axis allows the flexibility of the transformer device to be significantly increased with regard to the transfer of different and/or asymmetrically shaped workpieces.
  • the device in which the first carrier can be moved in the second direction along a first axis, the device comprises first drive and locking means for moving the first carrier along the first axis and for locking it in a desired position along its travel path along the first axis.
  • the locking function of the first drive and locking means can be temporarily canceled, so that the first carrier can be displaced along the first axis by forces acting on it.
  • the device comprises third drive and locking means for moving the first or second carrier along in the third direction the third axis and for locking it in a desired position along its travel path along the third axis.
  • the locking function of the third drive and locking means can be temporarily canceled, so that the first carrier or the second carrier can be displaced along the third axis by forces acting on it.
  • the first vice with the workpiece clamped therein can be made displaceable in the transfer position when the workpiece is clamped in the second vice, in particular along the closing direction of the second vice, so
  • the second vice can be made displaceable in the takeover position when the workpiece is clamped therein, in particular along its closing direction, so that the second vice when clamping the workpiece in a potentially overdetermined re-clamping situation together with the second carrier in particular along the closing direction of the second vice can be moved.
  • the drive and locking means preferably have non-self-locking spindle/spindle nut combinations with unlockable spindle drives or unlockable linear motors, so that the locking function of the drive and locking means can be achieved by unlocking the spindle drives or Linear motors can be temporarily canceled.
  • Such drive and locking means are commercially available with high precision.
  • the transformer device has vice drives for mechanical vices, which preferably comprise servo motors for driving the actuating spindles of mechanical first and second vices to be arranged on the first and second receiving surfaces.
  • the vice drives have rotatable coupling elements for coupling to the actuating spindles of the first and two
  • the coupling elements advantageously have a stepped driver contour for coupling to actuating spindles of different sizes with a drive contour that is complementary to a step of the driver contour. This means that the vice drives are suitable for different vices without conversion.
  • the axes of rotation of the coupling elements of the vice drives are fixed with respect to the respective first or second carrier. This makes it possible to provide the vice drives in a simple and robust manner.
  • the first and second carriers of the transformer device have supply openings for fluid energy in the area of their receiving surfaces for actuating fluid energy-operated first and second vices to be arranged on the first and second receiving surfaces, preferably for supplying compressed air or hydraulic oil as fluid energy to operate the vices.
  • a third aspect of the invention relates to a set comprising a transformer device according to the second aspect of the invention and at least one first vice and at least one second vice, wherein the first and the second clamping surface and the first and the second vice are designed such that the vices can each be attached to the clamping surfaces without tools, in particular by means of a zero-point clamping system.
  • Such sets are preferably used in automated production according to the method according to the first aspect of the invention.
  • a fourth aspect of the invention relates to a set, preferably according to the third aspect of the invention, comprising a transformer device with vice drives with rotatable coupling elements for coupling to the actuating spindles of the first and second vices, the axes of rotation of the coupling elements of the vice drives being fixed with respect to the j respective first or second carrier.
  • the set further comprises various, preferably different sized, mechanical first and second vices, the first and second carriers of the transformer device being designed with interchangeable carrier consoles, which provide the respective receiving surfaces for the first and second vices.
  • the set includes various carrier consoles with which the receiving surfaces of the carriers can be provided for the various first and second vices of the set in such a way that the axes of rotation of the actuating spindles of the various first and second vices each correspond to the axes of rotation of the coupling elements of the vice drives coincide.
  • Fig. 1 a perspective top view of a transformer device according to the invention with the first carrier arranged in the loading position;
  • Fig. 2 is a side view of the transformer device from FIG. 1 ;
  • Fig. 3 is a perspective top view of the transformer device from FIG. 1 with a first vice arranged on the first support with a workpiece clamped therein;
  • Fig. 4 is a side view of the transformer device from FIG. 3 ;
  • Fig. 5 a representation like Fig. 4 with the first carrier with the first vice arranged thereon and a workpiece clamped therein arranged in the transfer position;
  • Fig. 6 a representation like FIG. 5 with the second carrier with the second vice arranged thereon arranged in the takeover position;
  • Fig. 7 is a side view of the transformer device from FIG. 6 after the workpiece has been completely transferred from the first vice to the second vice; and Fig. 8 a representation like FIG. 7 but when using the transformer device with smaller vices and other support brackets.
  • FIG. 1 shows a perspective top view of a clamping device 1 according to the invention for clamping a workpiece between two vices
  • FIG. 2 is a side view of the transformer device 1 from FIG. 1 .
  • the clamping device 1 comprises a first carrier 5, with a first receiving surface 6 for a first vice 3 to be received with a workpiece 2 to be clamped (not shown in FIGS. 1 and 2), and a second carrier 7, with a second receiving surface 8 for a second vice 4, which is to take over the workpiece 2 from the first vice 3.
  • the first 5 and second carriers 7 are designed with exchangeable carrier consoles 16, which provide the respective receiving surfaces 6, 8 for the first 3 and second vices 4.
  • the second vice 4 is already arranged on the second receiving surface 8 of the second carrier 7. It is a center-stressing mechanical
  • the receiving surfaces 6, 8 of the carriers 5, 7 each have a pairing half of a zero-point clamping system to form a zero-point clamping connection with the first or second vice 3, 4.
  • the first and second vices 3, 4 each have a corresponding, complementary pairing half of the zero-point clamping system.
  • the locking mechanism of the respective zero point clamping system is arranged in the respective carrier 5, 7 and can be actuated pneumatically.
  • the second carrier 7 with the second vice 4 receiving the workpiece 2 can be moved in a first direction along the linear axis Z and in a third direction along the linear axis Y relative to the first carrier 5, and the first carrier 5 is relative to the second carrier 7 can be moved in a second direction along the linear axis X.
  • the axes X, Y and Z are perpendicular to each other.
  • the transformer device 1 has drive and locking means 9, which include spindle/spindle nut combinations that are driven by servo motors.
  • the spindle/spindle nut combinations of the drive and locking means 9 for moving the first carrier 5 along the first axis X and for moving the second carrier 7 along the third axis Y are with non-self-locking spindle/spindle nut combinations and unlockable spindle drives, so that the locking function of these drive and locking means 9 can be temporarily canceled by unlocking the spindle drives and the carriers 5, 7 can then be moved along the respective axes X, Y by external forces.
  • FIG. 3 shows a perspective top view of the transformer device 1 with a first vice 3 arranged in the loading position on the first carrier 5 with a workpiece 2 clamped therein
  • FIG. 4 shows a side view of the transformer device 1 from FIG. 3.
  • Fig. 5 shows a representation like FIG. 4, but with the first carrier 5 with the first vice 3 arranged thereon and a workpiece 2 clamped therein arranged in the transfer position.
  • the first carrier 5 is between the loading position, in which the first carrier 5 and the second carrier 7 do not face each other (Fig. 4), and the transfer position, in which the first Carrier 5 and the second carrier 7 face each other (FIG. 5) and can be moved along the first axis X.
  • the transformer device 1 has its own vice drives 10, 11, 12 for the mechanical vices 3, 4, with servo motors for driving the actuating spindles of the vices 3.
  • the vice drives 10, 11, 12 have rotatable coupling elements 15 (only provided with reference number 15 in FIG. 1 and only visible there for the vice drives 11, 12 for the first vice 3).
  • the coupling elements 15 have a stepped driver contour for coupling to actuating spindles of different sizes with a drive contour that is complementary to a step of the driver contour.
  • the first carrier 5 is equipped with two separate vice drives 11, 12 arranged at an angle of 90 ° to one another, so that the first vice 3 can optionally be arranged on the receiving surface 6 of the first carrier 5 with an identical closing direction as the second vice 4 or twisted 90° to it.
  • the axes of rotation of the coupling elements 15 of the vice drives 10, 11, 12 are fixed with respect to the respective first 5 or second carrier 7.
  • Figures 1 and 2 show the transformer device 1 according to the invention with the first carrier 5 arranged in the loading position.
  • a first mechanical center-clamping vice 3 with a workpiece 2 clamped therein is arranged on the receiving surface 6 of the first carrier 5 of the transformer device 1 by means of a robot arm (not shown).
  • the first vice 3 which has a complementary pairing half to the pairing half of the zero-point clamping system, which is provided by the receiving surface 6 of the first carrier 3, is controlled via the zero-point clamping system.
  • the first carrier 5 with the first vice 3 arranged thereon and the workpiece 2 clamped therein with the drive and locking means 9 associated therewith is moved in the second direction along the first axis X from the loading position shown in Figures 1 to 4 into the transfer position procedure in which the second vice 4 faces the first vice 3 with the workpiece 2 clamped therein at a distance (Fig. 5).
  • the first carrier 5 is locked by the associated drive and locking means 9.
  • the second carrier 7 with the open second vice 4 arranged thereon is moved with the drive and locking means 9 assigned to it in the first direction along the second axis Z onto the workpiece 2 provided with the first vice 3 in the transfer position into its acceptance position, in which the free, unclamped end of the workpiece 2 is located between the opened jaws 14 of the second vice 4.
  • the drive and locking means 9 become free for moving the second carrier in the third direction along the axis Y switched so that the second carrier 4 can move in the closing direction of the second vice 4 when closing the jaws 14 of the second vice 4 if necessary. In this way, overdetermined clamping conditions can be reliably prevented.
  • the second carrier 7 with the second vice 4 arranged thereon and the workpiece clamped therein is used
  • the second vice 4 with the workpiece 2 clamped therein is then removed from the clamping device with a robot arm, for which purpose the connection between the second vice 4 and the second carrier 7 created via the zero-point clamping system is removed, while the second vice 4 is removed from the robot arm (not shown).
  • Fig. 8 shows a representation of the transformer device 1 in a situation as in FIG. 7, but when using the transformer device 1 with smaller first

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  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne un procédé de positionnement d'une pièce à usiner entre deux étaux. Un premier étau (3) avec une pièce à usiner (2) serrée en son sein est prévu et disposé sur une première surface de réception (6) d'un premier support (5) d'un appareil de gabarit (1). Un second étau (4) est également disposé sur une seconde surface de réception (8) d'un second support (7) de l'appareil de gabarit (1). Les deux supports (5, 7) sur lesquels sont disposés les étaux (3, 4) sont déplacés l'un vers l'autre dans une première direction transversale par rapport à la direction de fermeture du second étau (4) de telle sorte que la pièce à usiner (2) serrée dans le premier étau (3) est agencée avec son extrémité libre non serrée (13) entre les mâchoires (14) du second étau (4). Dans cet état, la pièce à usiner (2) est serrée dans le second étau (4), puis le premier étau (3) est ouvert, pour transférer la pièce à usiner (2) au second étau (4). Selon l'invention, en plus du mouvement des deux supports (5, 7) l'un vers l'autre et l'un par rapport à l'autre dans la première direction, les supports (5, 7) sont déplacés l'un par rapport à l'autre dans une seconde direction qui s'étend transversalement par rapport à la première direction. Le procédé selon l'invention permet d'influer sur la position de l'extrémité libre non serrée (13) de la pièce à usiner (2) entre les mâchoires (14) du second étau (4) et, par conséquent, même dans le cas de pièces asymétriques, d'obtenir dans chaque cas une situation de serrage optimale dans le second étau (4). Il est également possible de transférer le chargement de l'appareil de gabarit (1) avec le premier étau (3) dans une région à l'extérieur de la zone de positionnement réelle, ce qui se traduit par des avantages en termes d'espace.
PCT/EP2022/067443 2022-06-24 2022-06-24 Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux Ceased WO2023247056A1 (fr)

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EP22735180.6A EP4536437A1 (fr) 2022-06-24 2022-06-24 Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux
PCT/EP2022/067443 WO2023247056A1 (fr) 2022-06-24 2022-06-24 Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux

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PCT/EP2022/067443 WO2023247056A1 (fr) 2022-06-24 2022-06-24 Procédé et appareil de positionnement d'une pièce à usiner entre deux étaux

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WO2023247056A1 true WO2023247056A1 (fr) 2023-12-28

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Cited By (1)

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CN117549285A (zh) * 2024-01-10 2024-02-13 北京中智蓝瑞机械设备有限公司 一种机械维修零件转移机械手

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EP2055413A1 (fr) * 2007-11-05 2009-05-06 Star Micronics CO., LTD. Machine-outil
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WO2021156038A1 (fr) 2020-02-04 2021-08-12 Gressel Ag Dispositif gabarit et procédé de positionnement d'une pièce à travailler entre deux appareils de serrage
CN215755115U (zh) * 2021-08-17 2022-02-08 国机铸锻机械有限公司 浮动夹钳
EP3984707A1 (fr) * 2020-10-15 2022-04-20 WST Präzisionstechnik GmbH Dispositif de chargement et de déchargement, ainsi que de fonctionnement d'un étau pour machines

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012553U1 (de) * 2007-09-07 2009-01-08 Arix Cnc Machine Inc. Werkzeugmaschine
EP2055413A1 (fr) * 2007-11-05 2009-05-06 Star Micronics CO., LTD. Machine-outil
WO2010039032A1 (fr) 2008-09-30 2010-04-08 Pex Rent B.V. Ensemble et procédé d’usinage d’un objet avec une machine de type fraiseuse
WO2016163408A1 (fr) * 2015-04-08 2016-10-13 三菱日立パワーシステムズ株式会社 Procédé de traitement de lame, dispositif de traitement de lame, et programme de commande d'instruction de traitement pour ledit dispositif de traitement
EP3639971A1 (fr) * 2018-10-15 2020-04-22 Michael Weinig AG Procédé de traitement des pièces longues en bois, en matière plastique et analogue, ainsi que machine permettant de mettre en oeuvre ledit procédé
WO2021156038A1 (fr) 2020-02-04 2021-08-12 Gressel Ag Dispositif gabarit et procédé de positionnement d'une pièce à travailler entre deux appareils de serrage
EP3984707A1 (fr) * 2020-10-15 2022-04-20 WST Präzisionstechnik GmbH Dispositif de chargement et de déchargement, ainsi que de fonctionnement d'un étau pour machines
CN215755115U (zh) * 2021-08-17 2022-02-08 国机铸锻机械有限公司 浮动夹钳

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117549285A (zh) * 2024-01-10 2024-02-13 北京中智蓝瑞机械设备有限公司 一种机械维修零件转移机械手
CN117549285B (zh) * 2024-01-10 2024-03-12 北京中智蓝瑞机械设备有限公司 一种机械维修零件转移机械手

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