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EP1967323B1 - Dispositif pour appliquer une pression sur une pièce de travail - Google Patents

Dispositif pour appliquer une pression sur une pièce de travail Download PDF

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Publication number
EP1967323B1
EP1967323B1 EP08151603.1A EP08151603A EP1967323B1 EP 1967323 B1 EP1967323 B1 EP 1967323B1 EP 08151603 A EP08151603 A EP 08151603A EP 1967323 B1 EP1967323 B1 EP 1967323B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
accordance
applying pressure
holding head
bearing shell
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.)
Active
Application number
EP08151603.1A
Other languages
German (de)
English (en)
Other versions
EP1967323A2 (fr
EP1967323A3 (fr
Inventor
Hans Rösch
Rainer Steinle
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.)
Bessey Tool GmbH and Co KG
Original Assignee
Bessey Tool GmbH and Co KG
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 Bessey Tool GmbH and Co KG filed Critical Bessey Tool GmbH and Co KG
Priority to PL08151603T priority Critical patent/PL1967323T3/pl
Publication of EP1967323A2 publication Critical patent/EP1967323A2/fr
Publication of EP1967323A3 publication Critical patent/EP1967323A3/fr
Application granted granted Critical
Publication of EP1967323B1 publication Critical patent/EP1967323B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/102—Arrangements for positively actuating jaws using screws with at least one jaw sliding along a bar

Definitions

  • the invention relates to a workpiece pressurizing device, comprising a contact element to a workpiece, a holding device and a bearing device, via which the abutment element is mounted on the holding device, wherein the bearing means comprises a holding head and a holding head receiving space, wherein the holding head receiving space a storage area for the holding head, which can come into mechanical contact with the holding head, wherein the bearing means comprises a bearing shell, which is a separate from the holding head and the holding head receiving space part, and wherein the bearing shell is fixed to the holding head receiving space and the storage area forms.
  • a workpiece pressurization device is designed, for example, as a clamp (such as a screw clamp or lever clamp).
  • the contact element transfers compressive forces to the workpiece and is thus subject to wear.
  • a clamping device which has a pressure-exerting piece terminating in a ball. Further, a pressure plate is provided, which is detachably mounted on the ball of the pressure-exerting piece. A spring is provided as a means for detachably attaching the pressure plate.
  • a screw clamp which has a pressure plate which is pivotally mounted on a threaded spindle.
  • the pressure plate can straighten and lock a spindle on an upper side of a sliding bracket.
  • a ferrule which comprises a rod which terminates at one end in a ball.
  • a kennel head which is pivotally fixed on the ball.
  • This kennel head comprises a part in which a metal element sits. This metal element receives two connecting parts which hold the ball.
  • WO 02/051590 A1 is a screw clamp with a supported by a slide fixed bracket and a slidably guided on the slide rail and a movable bracket associated spindle with a drive end and a exciting known, the spindle head is connected to a pressure piece ball joint.
  • the ball joint has a lying on the line of force between the pressure piece and spindle head loose ball.
  • a ball joint is known in particular for parts of the steering or suspension of motor vehicles, in which a closure element under the action of the bearing shell on a housing in an axial biasing direction displaceable guide and in any, a position to be adjusted bias corresponding position can be fixed.
  • a system which comprises a sphere which can oscillate to a limited extent and comprises a pressure surface.
  • a receptacle for a trained as a ball end of a plunger wherein the receptacle and the ball head are a pair of elements of a ball joint which couples a translational movement of the plunger with a rotational movement of a component connected to the recording, wherein the receptacle is a cup-shaped hollow body and a arranged in the hol body elastic insert body comprises.
  • the invention has for its object to provide a workpiece-pressurizing device of the type mentioned, which can be produced in a simple manner.
  • the storage area is made as a sintered storage area of a porous material and that pores are saturated with lubricant.
  • the contact element and the bearing shell can be produced separately.
  • the production is simplified as a whole and the storage facility can be optimized.
  • the bearing area on the contact element no longer has to be produced by turning (such as, for example, by boring with shaped steel), which is correspondingly expensive.
  • the bearing shell can be produced in a simple manner and in particular without cutting, for example by pressing.
  • the bearing shell can be made of a sintered metal.
  • an abutment region of the abutment element from a weldable material (which is usually soft and has a high coefficient of friction and low wear resistance), and to produce the bearing region from a suitable material with a lower coefficient of friction.
  • the storage area is made as a sintered storage area.
  • the storage area may be formed on the bearing shell or directly on the contact element, without a bearing shell is provided. If the storage area is designed as a sintered storage area, then a high surface quality with correspondingly low friction can be obtained.
  • the storage area is made of a porous material. It is used a porous sintered material.
  • the holding head receiving space is formed on the contact element and the holding head is formed on the holding device.
  • the holding head receiving space is formed on the holding device and the holding head is formed on the contact element.
  • the bearing shell is rotationally fixed with respect to the holding head receiving space is positioned. This makes it possible in a simple manner a mobility of the contact element (which is designed in particular as a pressure cap) with respect to the holding device, wherein this mobility is realized via the bearing shell.
  • the bearing shell is held against rotation by frictional connection and / or positive locking.
  • a frictional connection for example, the bearing shell is pressed against a boundary of a receiving space for the bearing shell while achieving a torsional strength.
  • a positive connection can be achieved, for example, via corresponding positive locking elements on the bearing shell and a boundary of a receiving space for the bearing shell.
  • the bearing shell has an upper edge region which overlaps a wall which delimits a receiving space for the bearing shell.
  • a force can be exerted on the upper edge region via a securing element in order to press the bearing shell against a boundary of the receiving space for the bearing shell.
  • the holding head receiving space is limited by the storage area and in particular the bearing shell.
  • the holding head can come into mechanical contact with the storage area, when a compressive force is applied.
  • a limited by a circumferential wall receiving space for the bearing shell is provided.
  • the bearing shell can be positioned.
  • the circumferential wall has an end portion which is overlapped by the bearing shell.
  • the circumferential wall is provided with an external thread.
  • a fuse element can be fixed, by which a dewatering of the holding head from the holding head receiving space can be blocked. As a result, the holding head can be held in the holding head receiving space.
  • the storage area facing the holding head has a spherical surface. As a result, forces can be distributed optimally, so as to obtain a high wear resistance of the bearing device.
  • the holding head is designed as a ball head. This gives an optimized distribution of forces. Further, this can easily achieve a seal of a gap between the holding head and the holding head receiving space to the outside to prevent the drainage of lubricant.
  • the holding head is mounted pivotably and / or rotatably in the holding head receiving space.
  • the contact element can be rotated and / or pivoted relative to the holding device.
  • an alignment of the contact element with respect to a workpiece is possible.
  • the holding head is supported in the holding head receiving space with clearance.
  • the holding head and the holding head receiving space are dimensioned accordingly. This ensures that lubricant can redistribute to achieve optimized lubrication.
  • the storage area has a lubricant reservoir. As a result, a larger amount of lubricant can be kept at the storage facility.
  • the lubricant reservoir is formed by at least one recess.
  • the recess can be filled at least partially with lubricant during the production of the bearing device.
  • the lubricant reservoir is arranged centrally to an axis of symmetry of the holding head receiving space. This makes it possible to provide a lubricant reservoir which does not disturb the flow of force between the holding device and the contact element.
  • the retaining head is locked against escape from the holding head receiving space by a securing element.
  • the securing element ensures that the abutment element is fixed to the holding head (pivotability and / or pivotability being permitted).
  • the securing element is designed as a counter element for the bearing shell, which presses on the bearing shell.
  • the fuse element can be on the one hand hold the contact element to the holding head “captive”.
  • the securing element can be on the securing element as a counter element exert a compressive force on the bearing shell to press them against a boundary of a receiving space for the bearing shell. This allows the bearing shell without further effort rotatably fix with respect to the receiving space for the bearing shell.
  • the securing element has a contact area for the bearing shell.
  • This investment area can exert a compressive force on the bearing shell on the fuse element.
  • a compressive force can be exerted on an upper edge region (outside a spherical surface of the bearing shell).
  • connection can be made for example by screwing, latching or flanging.
  • connection is in particular designed so that it is detachable. This allows the contact element to be removed and replaced.
  • the securing element is bolted to the wall.
  • the securing element is a nut. Due to the force acting on the screws, the bearing shell can be fixed in a torque-proof manner at the same time.
  • the securing element protrudes beyond an equatorial plane of the holding head, if this is designed as a ball head. As a result, a barrier effect can be achieved in a simple manner. Furthermore, a gap between the holding head and the holding head receiving space can be sealed to the outside to prevent a drainage of lubricant.
  • the securing element is designed as a seal for a space between the holding head receiving space and the holding head to the outside and / or has a seal for this space.
  • This can be an effective and easy way to prevent lubricant drainage.
  • An additional seal, which is arranged in the securing element, can be achieved, for example, via one or more circumferential sealing lips. By such sealing lips can also be achieved that a certain position of the contact element is fixed non-positively relative to the holding head, and a corresponding force is necessary to produce a different pivot position or rotational position.
  • the securing element has an opening through which the holding head is performed.
  • the Heraushren the holding head from the holding head receiving space is then locked by the fact that the holding head abuts against a boundary of the opening.
  • the bearing shell is produced without cutting. This gives a high surface quality with correspondingly lower friction. This, in turn, can be achieved with ease of manufacture, a low loss of clamping force on the number of clamping operations.
  • the bearing shell is made by pressing. As a result, a production in a simple and cost-effective manner possible.
  • the storage area is a powder metallurgical area. It is made by powder metallurgy. For example, it is made by pressing and then baking.
  • the storage area is made of sintered steel, which is case hardened, for example. This gives a high surface hardness and high surface quality.
  • the bearing shell is a powder metallurgical part.
  • a powder metallurgical part can be produced in a simple manner by pressing and baking. It is possible to realize a high surface quality with correspondingly low friction. In turn, this makes it possible to achieve a relatively low loss of clamping force over the service life.
  • the bearing shell has a substantially uniform wall thickness. As a result, the bearing shell can be produced in a simple manner as a pressed part. In turn, the production cost is minimized.
  • the abutment element has a contact area made of weldable material. This makes it possible to weld the contact element in the application to a corresponding workpiece.
  • a corresponding material can be used for the contact element without having to compromise with regard to the bearing device.
  • the bearing device is designed so that the contact element is removable.
  • a spindle replacement can be carried out in a simple manner or a worn contact element can be exchanged in a simple manner.
  • an application element adapted to an application For example, then a contact element with adapted to the application size of the contact surface can be used.
  • the workpiece pressure application device is designed in particular as a clamping tool for clamping one or more workpieces. For example, training as a clamp (such as screw clamp or lever clamp) before.
  • the holding device is a spindle (such as a screw spindle) or is formed on a spindle.
  • FIG. 1 An embodiment of a workpiece pressurizing device is a clamping tool, which in FIG. 1 shown there and designated as a whole with 10.
  • the embodiment shown is a screw clamp.
  • the screw clamp 10 is a hand tool and comprises a rail 12, on which a fixed bracket 14 is arranged.
  • the fixed bracket 14 has a contact area 16 for a workpiece. This contact area 16 comprises a substantially planar contact surface 18.
  • the sliding bar 20 comprises a recess 22, which is formed on a holding element 24.
  • the holding element 24 is designed so that it can tilt on the rail 12.
  • the fixed bracket 14 and the slide bracket 20 are aligned at least approximately parallel to each other.
  • the sliding bracket 20 comprises at an end opposite the retaining element 24 a threaded element 26 with an internal thread 28.
  • a screw spindle 30 is guided.
  • the screw spindle 30 has a holding head 34 at an end opposite to the gripping element 32 ( FIG. 2 ), which is designed in particular as a ball head 36.
  • the screw spindle 30 extends along an axis 38, which is coaxial with a rotational axis of the screw spindle 30.
  • a center 40 of the ball head 36 lies on the axis 38.
  • the ball head 36 has a substantially flat end face 42, so that it is spherical segment-shaped in this area.
  • a particular manually removable contact element 46 is arranged on the holding head 34.
  • This has a contact area 48, which can be applied with a contact surface 50 to a workpiece.
  • the contact surface 50 is substantially flat. It is aligned with the contact surface 18 of the fixed bracket 14.
  • the screw 30 can exert a compressive force on a workpiece, which rests with one side on the fixed bracket 14. This allows the workpiece to be clamped. (In this sense, the compressive force can also be considered as a clamping force.)
  • the contact element 46 which is designed in particular in the form of a pressure cap, is connected via a bearing device, which as a whole has 52 in FIG. 2 is designated, held on a holding device 54.
  • the holding device 54 is the screw spindle 30 or is held on the screw spindle 30.
  • the holding device 54 comprises the holding head 34.
  • the abutment element 46 has an end plate 56 on which the abutment region 48 is formed. At the end plate 56 a circumferential wall 58 is arranged and in particular integrally formed. The wall 58 surrounds a recess or space 60. This space 60 is rotationally symmetric about an axis 62. (It is possible that with proper alignment of the abutment member 46, the axis 62 and the axis 38 coincide.)
  • the space 60 is bounded by a first region 64 lying transversely and in particular perpendicular to the axis 62.
  • This first region 64 has a circle as an outline.
  • the first region 64 is adjoined by a second region 66, which is inclined to the first region 64.
  • the inclination is rotationally symmetric to the axis 62 with an imaginary apex on the axis 62 outside of the contact element 46 (in front of the contact surface 50).
  • the circumferential wall 58 which protrudes from the end plate 56, has an external thread 68. It has an end portion 70 which is annular. This end region 70 is formed on one side of the contact element 46, which faces away from the contact surface 50.
  • a bearing shell 72 is positioned in the space 60.
  • This space 60 is a receiving space for the bearing shell 72.
  • This bearing shell 72 is a separate from the holding head 34 and the abutment member 46 produced part which is positioned in the production of the bearing means 52 in the space 60 and held there against rotation.
  • the bearing shell 72 has a first side 74, which faces the first region 64 and the second region 66 of the boundary of the space 60. Furthermore, it has a second side 76, which faces the holding head 34.
  • the first side 74 has the surface of a truncated cone with the same taper angle as the second region 66. Via the first side 74, the bearing shell 72 can be applied to the first region 64 and the second region 66.
  • the second side 76 has a spherical surface to form a spherical bearing for the ball head 36.
  • the bearing shell 72 includes a lubricant reservoir 78, which can receive lubricant.
  • This lubricant reservoir 78 is formed by a corresponding recess 80 in particular in a central region of the bearing shell about the axis 62 (to which the bearing shell 72 is rotationally symmetrical).
  • the bearing shell 72 has an upper edge region 82, with which it overlaps the end region 70 of the circumferential wall 58.
  • a bearing portion 84 is defined, which can come into mechanical contact with the holding head 34.
  • the storage area 84 defines a holding head receiving space 86, in which the holding head 34 is at least partially seated.
  • a securing element 88 is fixed on the wall 58.
  • This securing element 88 prevents the holding head 34 positioned in the holding head receiving space 86 from being able to be dipped out of it.
  • the securing element 88 is in particular a nut 90, which is screwed onto the wall 58 with an internal thread 92.
  • the securing element 88 has an opening 94 through which the holding head 34 is performed.
  • the opening 94 is adapted to the shape of the holding head 34 and in particular to its spherical shape such that a gap between the bearing shell 72 and the holding head 34 is sealed to the outside (towards the screw shaft 30), so that the lubricant outlet is blocked or at least reduced ,
  • a seal can be provided, for example, via one or more sealing lips 96.
  • the securing element 88 with its opening 94 protrudes beyond an equatorial plane 98 of the holding head 34, so that its replaceability from the holding head receiving space 86 by positive engagement (by abutment against the securing element 98 in the region of the opening 94) is locked.
  • the securing element 88 further has a contact region 100, which is in particular annular. This serves to abut against the upper edge region 82 of the bearing shell 72. Via the securing element 88, which then acts as a counter element for the bearing shell 72, it can be pressed into the receiving space 60 and thereby held in a rotationally fixed manner with respect to the abutment element 46 via a force fit.
  • the bearing device 52 is designed so that the holding head 34 and the abutment element 46 are rotatable and pivotable relative to each other.
  • the abutment element 46 is rotatable about an axis of rotation coaxially with the axis 62. Further, the abutment member 46 is pivotable about each respective pivot axis which is perpendicular to the axis 62 and passes through the center 40.
  • the maximum tilt angle is for example in the order of about 35 °.
  • the abutment element 46 is releasably connected to the holding device 54. It can be removed and replaced.
  • the bearing shell 72 is produced in particular by chipless machining. In order to produce the storage area without additional bearing shell 72 with a spherical surface, a relatively high processing cost is necessary. It must be a spherical surface machined by machining material processing, with a post-processing is necessary. Corresponding turned parts, which have been machined with a mild steel, have a medium or rough surface quality. In the solution according to the invention, an additional bearing shell 72 is provided, which is manufactured separately. This can be produced, for example, by means of presses with high surface quality without cutting. The processing cost is significantly reduced.
  • the bearing shell 72 is particularly made to have a substantially uniform wall thickness. As a result, production by compression in a simple manner possible.
  • the bearing shell 72 is made so that a sintered bearing is formed.
  • the bearing shell 72 is a powder metallurgy produced part, which is made in particular of case-hardened sintered steel. For example, in the production of a corresponding preform is made by pressing, which is then baked.
  • the material of the bearing shell 72 has a porosity.
  • the pores can be impregnated with lubricant to allow permanent lubrication of the bearing device 52.
  • a bearing shell 72 which is in particular a powder metallurgy produced part, can be in addition to the simpler production achieve better coefficients of friction.
  • the static friction and the sliding friction can be reduced. This results in a substantially unchanged clamping force even after a high number of clamping operations.
  • the clamping force does not decrease significantly with the solution according to the invention even after 50 clamping operations.
  • the tests were carried out with a screw clamp with a clamping height of 150 mm and a tightening torque of 40 mm. A 30/50 rail was used, the clamping force being 12,000 N. Even after 50 clamping operations, a clamping force of 12,000 N could still be measured become.
  • bearing shell 72 can be produced without cutting, a higher surface quality is obtained than for a corresponding turned part.
  • the contact area 48 of the contact element is made of a weldable structural steel. Due to the bearing shell 72, the bearing area 84 can be produced by a corresponding material that is more advantageous for storage. (Weldable structural steel is fundamentally soft, so there is high friction and durability is reduced.)
  • a workpiece pressurizing apparatus which is easy to manufacture and which has no appreciable loss of tension even with a high number of clamping operations, i. has no significant increase in friction due to bearing wear.
  • a clamping tool such as a screw clamp or a lever clamp can be realized in a simple manner.
  • the contact element 46 (which is designed in particular as a pressure cap) can be exchanged in a simple manner.
  • the workpiece pressurization device may also have a plurality of abutment elements on a holding device or on a plurality of holding devices.
  • the holding head 34 is formed on the holding device 54 and the holding head receiving space 86 is formed on the abutment member 46. It is also possible in principle that the holding head receiving space is formed on the holding device and the holding head is formed on the abutment element 46.
  • the storage area of the bearing device 52 which comes into contact with the holding head 34, is formed by a powder metallurgical material and in particular sintered steel.
  • a sintered bearing for supporting the holding head 34 is provided.
  • the storage area can be arranged directly on the contact element 46 in one piece or several pieces. There must be no separate bearing shell provided. For example, a plurality of separate storage area elements may be provided, which are fixed to the contact element and together form the storage area.
  • the contact element is made in one piece from the corresponding material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Powder Metallurgy (AREA)
  • Rolling Contact Bearings (AREA)
  • Jigs For Machine Tools (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Press Drives And Press Lines (AREA)

Claims (37)

  1. Dispositif pour l'application d'une pression sur une pièce, comprenant un élément d'appui (46) contre une pièce, un mécanisme de retenue (54) et un dispositif de palier (52) au moyen duquel l'élément d'appui (46) est monté sur le mécanisme de retenue (54), le dispositif de palier (52) comportant une tête de retenue (34) et un logement (86) de tête de retenue, le logement (86) de tête de retenue présentant une zone de palier (84) pour la tête de retenue (34), laquelle peut venir en contact mécanique avec la tête de retenue (34), le dispositif de palier (52) comprenant une coque de coussinet (72), laquelle est une pièce séparée de la tête de retenue (34) et du logement (86) de tête de retenue, et la coque de coussinet (72) (72) étant fixée sur le logement (86) de tête de retenue et formant la zone de palier (84), caractérisé en ce que la zone de palier (84) est réalisée comme zone de palier frittée en matériau poreux et en ce que des pores sont enduits de lubrifiant.
  2. Dispositif pour l'application d'une pression sur une pièce selon la revendication 1, caractérisé en ce que le logement (86) de tête de retenue est formé sur l'élément d'appui (46) et en ce que la tête de retenue (34) est formée sur le mécanisme de retenue (54).
  3. Dispositif pour l'application d'une pression sur une pièce selon la revendication 1, caractérisé en ce que le logement de tête de retenue est formé sur le mécanisme de retenue et en ce que la tête de retenue est formée sur l'élément d'appui.
  4. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la coque de coussinet (72) est positionnée solidairement en rotation par rapport au logement (86) de tête de retenue.
  5. Dispositif pour l'application d'une pression sur une pièce selon la revendication 4, caractérisé en ce que la coque de coussinet (72) est maintenue de manière solidaire en rotation par force et/ou par engagement positif.
  6. Dispositif pour l'application d'une pression sur une pièce selon la revendication 4 ou 5, caractérisé en ce que la coque de coussinet (72) présente un bord supérieur (82) qui chevauche une paroi (58) délimitant un logement (60) pour la coque de coussinet (72).
  7. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que le logement (86) de tête de retenue est délimité par la zone de palier (84).
  8. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé par un logement (60) pour la coque de coussinet (72), délimité par une paroi périphérique.
  9. Dispositif pour l'application d'une pression sur une pièce selon la revendication 8, caractérisé en ce que la paroi périphérique (58) présente une zone frontale (70) pouvant être chevauchée par la coque de coussinet (72).
  10. Dispositif pour l'application d'une pression sur une pièce selon la revendication 8 ou 9, caractérisé en ce que la paroi périphérique (58) est pourvue d'un filet extérieur (68).
  11. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la zone de palier (84) présente une surface sphérique tournée vers la tête de retenue (34).
  12. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la tête de retenue (34) est réalisée comme tête sphérique (36).
  13. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la tête de retenue (34) est pivotante et/ou rotative dans le logement (86) de tête de retenue.
  14. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la tête de retenue (34) est montée avec jeu dans le logement (86) de tête de retenue.
  15. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la zone de palier (84) comprend un réservoir de lubrifiant (78).
  16. Dispositif pour l'application d'une pression sur une pièce selon la revendication 15, caractérisé en ce que le réservoir de lubrifiant (78) est formé par au moins un évidement (80).
  17. Dispositif pour l'application d'une pression sur une pièce selon la revendication 15 ou 16, caractérisé en ce que le réservoir de lubrifiant (78) est situé centralement sur un axe de symétrie (62) du logement (86) de tête de retenue.
  18. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la tête de retenue (34) est protégée par un élément de fixation (88) contre un dégagement hors du logement (86) de tête de retenue.
  19. Dispositif pour l'application d'une pression sur une pièce selon la revendication 18, caractérisé en ce que l'élément de fixation (88) est réalisé comme élément complémentaire pour la coque de coussinet (72), lequel élément complémentaire exerce une pression sur la coque de coussinet (72).
  20. Dispositif pour l'application d'une pression sur une pièce selon la revendication 19, caractérisé en ce que l'élément de fixation (88) présente une zone d'appui (100) pour la coque de coussinet (72).
  21. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications 18 à 20, caractérisé en ce que l'élément de fixation (88) est raccordé à une paroi (58) entourant le logement (86) de tête de retenue.
  22. Dispositif pour l'application d'une pression sur une pièce selon la revendication 21, caractérisé en ce que l'élément de fixation (88) est vissé à la paroi (58).
  23. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications 18 à 22, caractérisé en ce que l'élément de fixation (88) est un écrou (90).
  24. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications 18 à 23, caractérisé en ce que l'élément de fixation (88) dépasse d'un plan équatorial (98) de la tête de retenue (34) lorsque celle-ci est réalisée comme tête sphérique (36).
  25. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications 18 à 24, caractérisé en ce que l'élément de fixation (88) est réalisé comme joint d'étanchéité vers l'extérieur pour un espace entre le logement (86) de tête de retenue et la tête de retenue (34) et/ou comprend un joint (96) d'étanchéité pour cet espace.
  26. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications 18 à 25, caractérisé en ce que l'élément de fixation (88) présente une ouverture (94) par laquelle est passée la tête de retenue (34).
  27. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la coque de coussinet (72) est réalisée sans enlèvement de copeaux.
  28. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la coque de coussinet (72) est réalisée par formage sous pression.
  29. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la zone de palier (84) est une zone réalisée par métal pulvérisé.
  30. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la zone de palier (84) est fabriquée en acier fritté.
  31. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la coque de coussinet (72) est une pièce réalisée par métal pulvérisé.
  32. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que la coque de coussinet (72) présente une épaisseur de paroi sensiblement uniforme.
  33. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que l'élément d'appui (46) présente une zone d'appui (48) en matériau soudable.
  34. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que le dispositif de palier (52) est réalisé de manière à rendre l'élément d'appui (46) amovible.
  35. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé par sa réalisation comme outil de serrage.
  36. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé par sa réalisation comme serre-joints.
  37. Dispositif pour l'application d'une pression sur une pièce selon l'une des revendications précédentes, caractérisé en ce que le mécanisme de retenue (54) est un mandrin ou est disposé contre un mandrin.
EP08151603.1A 2007-03-08 2008-02-19 Dispositif pour appliquer une pression sur une pièce de travail Active EP1967323B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08151603T PL1967323T3 (pl) 2007-03-08 2008-02-19 Przyrząd do wywierania nacisku na przedmiot obrabiany

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007012275A DE102007012275B4 (de) 2007-03-08 2007-03-08 Werkstück-Druckbeaufschlagungsvorrichtung

Publications (3)

Publication Number Publication Date
EP1967323A2 EP1967323A2 (fr) 2008-09-10
EP1967323A3 EP1967323A3 (fr) 2009-07-15
EP1967323B1 true EP1967323B1 (fr) 2017-09-06

Family

ID=39494451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08151603.1A Active EP1967323B1 (fr) 2007-03-08 2008-02-19 Dispositif pour appliquer une pression sur une pièce de travail

Country Status (7)

Country Link
US (1) US8267389B2 (fr)
EP (1) EP1967323B1 (fr)
CN (1) CN101264594B (fr)
DE (1) DE102007012275B4 (fr)
ES (1) ES2650442T3 (fr)
PL (1) PL1967323T3 (fr)
TW (1) TWI418448B (fr)

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EP4491330A1 (fr) 2023-07-14 2025-01-15 GTech Automatisierungstechnik GmbH Dispositif de support

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CN102699841A (zh) * 2012-06-14 2012-10-03 无锡市麦希恩机械制造有限公司 压钳结构
US10556326B1 (en) * 2016-07-08 2020-02-11 Voytas Inc Speed clamp for T-slotted structural elements
CN107081674A (zh) * 2017-05-15 2017-08-22 湖州红树叶木业有限公司 木制工艺品用的抛光定位工装
US10842262B2 (en) * 2018-12-19 2020-11-24 Tod Zimmerman Tray attachment assembly
WO2022109381A1 (fr) 2020-11-23 2022-05-27 Milwaukee Electric Tool Corporation Ensemble scie à guide
US12465982B2 (en) 2022-02-24 2025-11-11 Techtronic Cordless Gp Track saw including plunge lockout mechanism
US12083613B2 (en) 2022-10-18 2024-09-10 Techtronic Cordless Gp Track saw including plunge lockout mechanism

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EP4491330A1 (fr) 2023-07-14 2025-01-15 GTech Automatisierungstechnik GmbH Dispositif de support

Also Published As

Publication number Publication date
DE102007012275B4 (de) 2008-12-18
TWI418448B (zh) 2013-12-11
US20080217830A1 (en) 2008-09-11
DE102007012275A1 (de) 2008-09-11
CN101264594A (zh) 2008-09-17
EP1967323A2 (fr) 2008-09-10
CN101264594B (zh) 2012-10-03
PL1967323T3 (pl) 2018-02-28
ES2650442T3 (es) 2018-01-18
TW200900205A (en) 2009-01-01
US8267389B2 (en) 2012-09-18
EP1967323A3 (fr) 2009-07-15

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