EP0254741A1 - Vorrichtung zur halterung und handhabung eines flachen gegenstandes. - Google Patents
Vorrichtung zur halterung und handhabung eines flachen gegenstandes.Info
- Publication number
- EP0254741A1 EP0254741A1 EP87901052A EP87901052A EP0254741A1 EP 0254741 A1 EP0254741 A1 EP 0254741A1 EP 87901052 A EP87901052 A EP 87901052A EP 87901052 A EP87901052 A EP 87901052A EP 0254741 A1 EP0254741 A1 EP 0254741A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- jaw
- flat
- movable
- clamping jaw
- 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.)
- Granted
Links
- 238000003754 machining Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009760 electrical discharge machining Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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
- B25B1/00—Vices
- B25B1/24—Details, e.g. jaws of special shape, slideways
- B25B1/2489—Slideways
-
- 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
- B25B1/00—Vices
- B25B1/24—Details, e.g. jaws of special shape, slideways
-
- 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
- B25B5/02—Clamps with sliding jaws
-
- 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
- B25B5/109—Arrangements for positively actuating jaws using screws with two screws, e.g. parallel screw clamps
-
- 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
Definitions
- the invention relates to a device for holding and handling a flat object, in particular for holding a flat workpiece on a machine tool according to the preamble of claim 1.
- a device has already become known which is also said to be suitable for holding flat workpieces for machining on a machine tool (Tech. Rundschau 1.86, workshop, accessories for wire EDM machines). It is adjustable -% ⁇
- Wrench a so-called Englishman, and also has similarities to a vice.
- This device has the major disadvantage that it is a system that is open on one side and is therefore not able to clamp a workpiece without play and without warpage. Since certain machining processes, such as electrical spark erosion, require a play-free maintenance of a workpiece position that is set with high precision and free of tension during machining, the use of the known device is not very useful in such cases.
- the object of the invention is therefore to improve the generic device in such a way that it allows fast, tension-free and play-free clamping of the objects for the purpose of precision machining of flat objects.
- the respective machining process is to be carried out by parts of the device. tion should not be hindered if possible.
- the preset processing position of the object is to be ensured in successive operations on the firmly clamped object on changing processing machines, automatic handling or transport between the different processing machines should also be possible.
- the object of the invention is achieved in the generic device by the features specified in the characterizing part of claim 1.
- Advantageous refinements and developments of the invention can be found in the subclaims.
- the device according to the invention which is also referred to below as “frame adhesive”, enables a precise, tension-free and play-free manner in a rigid, closed system Holder of the flat object and is therefore particularly advantageously applicable for machining operations that require extreme precision.
- the flat object is clamped in two
- the movable clamping jaw is inserted into the frame and carefully brought into position and clamped to the object to be clamped with clamping means, but without play; the movable jaw is then clamped to the frame by the gill means with a superimposed supporting tension, which is equivalent to a locking.
- the device represents a relatively simple construction, the parts of which, in particular the movable clamping jaw, are easily interchangeable. This enables a rapid adaptation to different types and contours of objects to be obtained.
- the device lies in the fact that it enables unhindered processing of the object clamped in it up to its outer contour, so that it can also be completely separated if necessary without the separated parts being able to change their position.
- the respective flat object can be a workpiece to be machined or a tool.
- the flat object can represent a sinking electrode during spark erosion, which is fastened to a sinking EDM machine and clamped in the frame clamp.
- the box clamp can also be used to "palletize" high-precision clamped objects, in particular workpieces. If you want to carry out a sequence of machining operations on different machines and maintain the required workpiece position with respect to a reference point on a preset position, you can simply clamp the box clamp together with the workpiece on the different machines without the relative Position of the workpiece is changed compared to the reference system. This gives a high repeat accuracy of a defined machining position of the workpiece each time a new work step begins.
- Claim 9 simplifies the clamping process, in particular also with regard to a semi- or fully automatic clamping. - f -
- Claims 10 and 11 offer the possibility of automatically handling the box clamp and combining it with further handling devices in accordance with the applicant's earlier patent applications.
- FIG. 1 shows a top view of the device according to the invention
- Figure 2 is a partially broken section along the line II of Fig. 1.
- 3 shows a perspective illustration of the movable clamping jaw, which is used in the invention
- Fig. 4 is a plan view of a movable jaw in accordance with a development of the invention, said en part broken away of a corner;
- Fig. 5 shows a first example of the use of
- FIG. 7 shows a third example of use for the use of the device.
- the device shown in FIG. 1 has a closed, rectangular, flat frame 1, one (on the right in FIG. 1) of the transverse side of which is designed as a fixed clamping jaw 1.1. Furthermore, the device has a movable clamping jaw 1.3 which can be inserted into the frame from the outside and is guided on its longitudinal sides 1.2. The jaw 1.3 can on the long sides - _ -
- 1.2 of the frame 1 are clamped and it can be clamped against a flat object W to be held (cf. also FIGS. 2 to 4).
- 1 on the left-hand transverse side 1.4 of the frame 1 carries a clamping means 1.5 acting on the movable clamping jaw 1.3, which in the present embodiment consists of three screw bolts 1.5.1, each inserted in a threaded bore 1.4.1 of the left-hand transverse side 1.4 consists.
- hydraulically or pneumatically actuated pressure drives can also be used as clamping means 1.5.
- the rigid frame 1 and the precise guidance of the movable clamping jaw 1.3 enable precise, play-free and distortion-free tightening of the flat object W to be held.
- di e movable jaw 1.3 has substantially the shape of a cuboid, the smallest at its two lateral surfaces with a groove 1.3.1 is fitted.
- the respective groove base 1.3.2 has an arcuate course (cf. dashed lines in FIGS. 1 and 4).
- the arcuate course of the groove base 1.3.2 of the two opposite grooves is designed such that, seen in the direction from the workpiece side, the one groove (upper groove in FIG. 1) has a deep incision which is directed towards the rear Clamping device side steadily decreases, while the bottom of the other groove (bottom in Fig.
- the two grooved ends of the movable jaw 1.3 are each split by a slot 1.3.3 in two prongs 1.3.4 (Fig. 3).
- the slots 1.3.3 each extend from the center line of each groove base 1.3.2 parallel to the largest side surface of the movable clamping jaw 1.3 towards the center thereof. They therefore run approximately in the center plane of the frame 1.
- the respectively associated tines 1.3.4 on both sides of the clamping jaw 1.3 can spring slightly on one another owing to the slot 1.3.3 forming them, and thus on the guide bar 1.2.1 of the respective one Longitudinal side 1.2 of the frame to be clamped.
- Each pair of associated tines 1.3.4 has a hole with a common axis running perpendicular to the slot plane. Hole 1.3.5 in one prong is a through hole with smooth walls.
- the other coaxial 1.3.6 hole in the other prong 1.3.4 is a threaded hole.
- the pairs of associated tines 1.3.4, each of which clasp the guide bar 1.2.1 on the inside of the facing frame longitudinal side 1.2, can then be countersunk against the guide bar with the aid of a countersunk screw 1.3.7 which interacts with the threaded bore 1.3.6 1.2.1 -% ⁇
- the pairs of associated tines 1.3.4 can each be clamped to the associated guide bar 1.2.1 by means of a pressure drive with hydraulic or pneumatic actuation.
- the movable clamping jaw 1.3 can also be designed with a pressure side which is inclined at an angle to the longitudinal sides 1.2 of the frame.
- the surfaces of the clamping jaws 1.1 and 1.3 and also those of the longitudinal sides of the frame 1.2, which come into contact with the side surfaces of the object W, can be designed as special profiles 1.6, such as this is shown in FIG. 4 for a simple example with a circular contour.
- the surfaces of the fixed jaw 1.1, the movable jaw 1.3 and the guide strips 1.2.1 facing the workpiece W have cut grooves 1.7, which here have a semicircular cross section and which are perpendicular to the frame plane.
- the grooves can also have another shape, for example a triangular cross section.
- the effective contact surfaces are reduced by these grooves 1.7. However, this makes it possible to keep these contact surfaces cleaner and in particular to remove waste items, dirt such as metal chips etc.
- the wire electrode can also be threaded into these grooves.
- 5 shows a first example of use of the device according to the invention for the purpose of automated handling of a tightly clamped flat object W when it is processed by the wire electrode D of a wire EDM machine, not shown, in a handling system 2 with an X-, Y- Coordinate movable flat slide 2.1 according to an earlier patent application by the applicant.
- 5 shows one of two grooves 2.1.1 each formed on the two longitudinal sides of the flat slide 2.1.
- the visible front groove 2.1.1 has a trapezoidal cross-sectional area.
- the other groove (not visible in FIG. 5) is provided with a triangular cross-sectional area.
- the two edge surfaces of each of the adjacent flat slide sides, which are close to the grooves 2.1.1, are designed as finely or precisely machined guide surfaces, while the front groove 2.1.1 has a surface which has been created by milling and is less precisely dimensioned.
- the flat slide 2.1 is guided along the guide jaws of a mobile base 2.2 using the grooves 2.1.1, of which only one 2.2.1 is visible in FIG. 5.
- the guide jaw 2.2.1 which engages in the front groove 2.1.1 is provided with a locking device 2.2.2 for fixing the flat slide 2.1.
- the base 2.2 can in turn be displaced at right angles to the direction of movement of the flat slide 2.1 by means of guide jaws 2.3, these guide jaws 2.2.3 again being guided with grooves 2.3.1 of the type described as a bar 2.3.
- the beam 2.3 directed transversely to the flat slide 2.1 is mounted on a frame 2.4.
- the flat slide 2.1 is connected with the aid of fastening screws 2.1.2 and adjusting screws 2.1.3 to the fixed jaw 1.1 of the box clamp according to FIG. 1.
- a further possibility for the fine adjustment of the flat slide 2.1 with regard to its unimpeded displaceability or precise guidance between the guide jaws 2.2.1 of the mobile base 2.2 is provided by an essentially U-shaped slot 2.1.4, which subsequently is formed in the area of the fastening and adjusting screws 2.1.2 and 2.1.3 in the flat slide 2.1.
- a threaded hole (not visible in FIG. 5) is machined into the flat slide 2.1, which starts on both sides of the U-shaped slot 2.1.4 in opposite directions from one leg of the same into the groove 2.1 .1 open out on the respective nearer longitudinal side of the flat slide 2.1.
- the setscrew 2.1.5 the inner end of which rests against the corresponding side of the rectangular material area of the flat slide 2.1 enclosed by the U-shaped slot 2.1.4, can then be fine-tuned to match the grooves 2.1.1 of the latter to the guide jaws 2.2 .1 of the mobile pedestal in turn by a slight partial rotary movement about a vertical axis. 5 is identical to that shown in FIGS. 1 to 3.
- a box clamp of a similar design is also shown. It is mounted on a pallet 1.9 using holes 1.8 provided in frame 1 and screws 1.8.1 inserted into them.
- the pallet 1.9 has grooves 1.9.1 which are similar to the grooves 2.1.1 of the flat slide 2.1 according to FIG. 5.
- FIG. 7 shows the use of a box clamp according to FIGS. 1 to 3 in a further handling system 10, which permits processing of an object W clamped in the box clamp from both sides, regardless of whether this object is flat or protrudes from the box clamp on both sides.
- the handling system is based on the arrangement according to FIG. 5.
- the box clamp is mounted on a flat slide 12.1 and this is slidably arranged with lateral grooves 12.1.1 between guide jaws 12.2.1 on the upper longitudinal edges of a mobile base 12.2.
- two slots 12.1.4 are provided in the flat slide 12.1, which run obliquely from the central region of the flat slide 12.1 and each run to the corresponding groove 12.1.1 via a bend.
- the base 12.2 is then guided by means of further guide jaws 12.2.4 of the same type provided on its lower longitudinal edges in a pair of grooves 12.3.1 which run along the upper longitudinal edges of a bar 12.3 aligned parallel to the movement of the flat slide 12.1 and with regard to their cross-sectional areas and Surface texture are movable to play the grooves 12.1.1 of the flat slide 12.1.
- the beam 12.3 used for the parallel guidance of the base 12.2 is also provided with “-” ”in a pair of grooves 12.3.2 machined in its lower longitudinal edges which, in terms of their cross-sectional area and surface quality, correspond to those of the flat slide
- the flat slide 2.1 in the arrangement according to FIG. 5 can be replaced by a circular cylindrical shaft which can be guided in a housing and is limited in terms of its axial and rotary movements. It is also in the same arrangement according to FIG. 5 instead of a single fold clamp, a multiple frame clamp can also be used, although the direction of movement or clamping of the associated movable clamping jaws should be directed at right angles to the stroke direction of the respective carrier (flat slide, cylindrical shaft, etc.). 7 and 5, the flat slide 12.1 of the arrangement according to FIGS. 7 and 5 could finally be designed with a cross-section corresponding to the beam 12.3 and also with four grooves similar to that of the beam. Such a slide would then also be insertable in a position rotated by 180 ° about its longitudinal axis between the guide jaws 12.2.1 of the base 12.2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87901052T ATE59320T1 (de) | 1986-02-07 | 1987-02-06 | Vorrichtung zur halterung und handhabung eines flachen gegenstandes. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH476/86 | 1986-02-07 | ||
CH476/86A CH668733A5 (de) | 1986-02-07 | 1986-02-07 | Vorrichtung zur halterung und handhabung eines flachen gegenstandes. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0254741A1 true EP0254741A1 (de) | 1988-02-03 |
EP0254741B1 EP0254741B1 (de) | 1990-12-27 |
Family
ID=4187875
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87200697A Pending EP0237136A1 (de) | 1986-02-07 | 1987-02-06 | Vorrichtung zur Halterung und Handhabung eines flachen Gegenstandes |
EP87901052A Expired - Lifetime EP0254741B1 (de) | 1986-02-07 | 1987-02-06 | Vorrichtung zur halterung und handhabung eines flachen gegenstandes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87200697A Pending EP0237136A1 (de) | 1986-02-07 | 1987-02-06 | Vorrichtung zur Halterung und Handhabung eines flachen Gegenstandes |
Country Status (6)
Country | Link |
---|---|
US (1) | US4824085A (de) |
EP (2) | EP0237136A1 (de) |
JP (1) | JPS63502812A (de) |
CH (1) | CH668733A5 (de) |
ES (1) | ES2020308B3 (de) |
WO (1) | WO1987004651A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3919078C1 (de) * | 1989-06-10 | 1990-02-01 | Erowa Ag, Reinach, Ch | |
US5033724A (en) * | 1989-10-06 | 1991-07-23 | James Lawrence W | Machine tool vise |
US5108080A (en) * | 1989-10-06 | 1992-04-28 | James Lawrence W | Machine tool vise |
US5312097A (en) * | 1992-12-21 | 1994-05-17 | Womack Terry R | Double C clamp device |
US5391230A (en) * | 1993-07-07 | 1995-02-21 | Eastman Kodak Company | Apparatus for holding solid compact medicaments during processing |
DE4340818C2 (de) * | 1993-12-01 | 2002-03-14 | Mannesmann Sachs Ag | Einspannvorrichtung für ein Werkstück |
US5551676A (en) * | 1995-03-24 | 1996-09-03 | Gaiser Tool Co. | Dual clamping vise |
US6761350B1 (en) * | 1996-05-24 | 2004-07-13 | Micron Technology, Inc. | Clamping device |
US5791640A (en) * | 1996-05-24 | 1998-08-11 | Micron Technology, Inc. | Clamping device |
JP3037665B2 (ja) * | 1997-11-06 | 2000-04-24 | 株式会社浅井鉄工所 | 小形異形物の掴持装置 |
US20040168287A1 (en) * | 2001-12-19 | 2004-09-02 | Chun-Tsai Yang | Pressing apparatus for a semiconductor device |
US6827327B2 (en) * | 2002-07-02 | 2004-12-07 | Cosmo Instruments Co., Ltd. | Flow resistance setting nozzle |
US20060197269A1 (en) * | 2005-03-04 | 2006-09-07 | Downey Curtis W | Drawer clamp |
DE102005026346A1 (de) * | 2005-06-08 | 2006-12-14 | Bernhard Brandl | Vorrichtung und Anordnung zum Fixieren von Werkstücken |
USD803021S1 (en) | 2015-07-30 | 2017-11-21 | Ming Chieh Wu | Pliers |
CN106807960A (zh) * | 2015-12-02 | 2017-06-09 | 安徽鸿远机电科技有限公司 | 一种钻铣床中拖板 |
US11925524B1 (en) * | 2023-06-07 | 2024-03-12 | King Faisal University | Dental tooth grasper |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE525321A (de) * | ||||
US1328492A (en) * | 1919-10-27 | 1920-01-20 | Frank V Carman | Work-holding cradle for spike-hole-plug machines |
FR547479A (fr) * | 1921-05-10 | 1922-12-13 | étau pour machines-outils | |
FR764590A (fr) * | 1933-10-20 | 1934-05-24 | Appareil pour faciliter l'assemblage des éléments d'un cadre | |
US2518867A (en) * | 1948-04-13 | 1950-08-15 | Laher Spring And Tire Corp | Vehicle spring manufacturing method |
US2865591A (en) * | 1956-02-23 | 1958-12-23 | Holinshead Alida Viola | Hose-clamp |
CH354045A (de) * | 1957-11-05 | 1961-04-30 | Ehrat Arnold | Einspannvorrichtung für Werkstücke wie Metallschilder usw. beim Gravieren derselben |
US3239210A (en) * | 1963-07-12 | 1966-03-08 | Ralph L Hustead | Universal drill press and pipe vise |
FR1482132A (fr) * | 1966-04-12 | 1967-05-26 | Demurger & Cie Ets | étau perfectionné |
US3665986A (en) * | 1969-10-02 | 1972-05-30 | Jimmie Johnson | Jig for cabinet door construction |
FR2503009A1 (fr) * | 1981-04-07 | 1982-10-08 | Felix Decool | Ensemble modulaire de serrage |
US4412676A (en) * | 1981-12-24 | 1983-11-01 | Black & Decker Inc. | Vise for workbench |
FR2555705B1 (fr) * | 1983-11-25 | 1986-07-11 | Dubois Rene | Support adaptable a des pieces de formes et dimensions variees |
-
1986
- 1986-02-07 CH CH476/86A patent/CH668733A5/de not_active IP Right Cessation
-
1987
- 1987-02-06 ES ES87901052T patent/ES2020308B3/es not_active Expired - Lifetime
- 1987-02-06 EP EP87200697A patent/EP0237136A1/de active Pending
- 1987-02-06 EP EP87901052A patent/EP0254741B1/de not_active Expired - Lifetime
- 1987-02-06 JP JP62501163A patent/JPS63502812A/ja active Pending
- 1987-02-06 WO PCT/EP1987/000058 patent/WO1987004651A1/de active IP Right Grant
- 1987-05-18 US US07/051,535 patent/US4824085A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO8704651A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1987004651A1 (en) | 1987-08-13 |
ES2020308B3 (es) | 1991-08-01 |
EP0237136A1 (de) | 1987-09-16 |
US4824085A (en) | 1989-04-25 |
CH668733A5 (de) | 1989-01-31 |
JPS63502812A (ja) | 1988-10-20 |
EP0254741B1 (de) | 1990-12-27 |
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XX | Miscellaneous (additional remarks) |
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