EP1559486A1 - Dispositif de support d'un outil de poinçonnage - Google Patents

Dispositif de support d'un outil de poinçonnage Download PDF

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Publication number
EP1559486A1
EP1559486A1 EP05001800A EP05001800A EP1559486A1 EP 1559486 A1 EP1559486 A1 EP 1559486A1 EP 05001800 A EP05001800 A EP 05001800A EP 05001800 A EP05001800 A EP 05001800A EP 1559486 A1 EP1559486 A1 EP 1559486A1
Authority
EP
European Patent Office
Prior art keywords
tool
punching
opening
bracket
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05001800A
Other languages
German (de)
English (en)
Inventor
Ludwig Kainz
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.)
Peschke & Kainz Geratebau GmbH
Original Assignee
Peschke & Kainz Geratebau GmbH
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 Peschke & Kainz Geratebau GmbH filed Critical Peschke & Kainz Geratebau GmbH
Publication of EP1559486A1 publication Critical patent/EP1559486A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Definitions

  • the invention relates to a device for holding a Stamping tool with an outer, substantially cylindrical Mold intended for punching a workpiece, and a stamping tool for use in the device.
  • the object of the invention is therefore to provide a device a postprocessing of already edited Workpieces separate from the previously used punching machine allows.
  • the device of the invention has to support a punch tool having an outer, substantially cylindrical Mold provided for punching a workpiece is a strap, a strap shell and a strap base has, which are aligned at a distance to each other, that the workpiece during punching between the upper bracket part and the lower bracket is arranged, wherein the upper bracket part a Has top and an opposite bottom, the the temple lower part faces, and one from the top to the bottom through opening into which the punch tool can be inserted at the top of the bow top and in the punch tool is guided such that the punch tool is aligned for punching the workpiece.
  • the device of the invention allows the large Punching machine, of which only one stands in an enterprise, for reworking does not need to be used their productive capacity is improved. Instead, you can the post-processing of the workpiece with the device of the invention done using the existing punching tools can be purchased without the need for new, expensive punching tools must be, whereby the present invention a provides considerable savings potential. This savings potential is more pronounced when you look at the case that the workpiece is not reworked in the large punching machine can be, since in the already done processing of the workpiece deformations, e.g. Burrs or folds, of the workpiece resulting in a reworking of the workpiece in the same punching machine due to impossible, level Prevent alignment of the workpiece in the machine.
  • the workpiece deformations e.g. Burrs or folds
  • the opening of the bracket upper part designed such that in the opening the stirrup upper part held or imported punch tool is rotatable about its punch tool axis, creating a more accurate Alignment of the punch tool is enabled.
  • a guide bush for the cylindrical punch tool can be provided in the opening.
  • the guide bush By means of the guide bush not only becomes the cylindrical punch tool in the stroke direction safely guided, but the guide bush can by the wall thickness also different in adaptation to different Types of cylindrical punching tools with different Outer diameter are designed.
  • the guide bush thus, as an adjusting device of the device Invention of differently sized stamping tools serve.
  • the guide bush is preferred by means of screws and associated Tapped holes held on the top of the bow, which a secure attachment and also a simple interchangeability the guide bush in case of wear or a conversion or adjustment of the device allows become.
  • the lower bracket part a bottom opening for receiving a plate tool as a tool counterpart for the stamping tool, wherein a center axis of the base opening coaxial with a center axis the opening in the upper bracket part, creating an exact Alignment of the punching tools is ensured to each other.
  • the bracket may be designed such that the plate tool from an upper side of the lower part of the bracket into the lower part opening can be used.
  • the plate tool is therefore preferred from the top of the lower bracket forth in the lower part opening used, whereby a simple replacement of the Disk tool is enabled.
  • the bracket of the device of the invention preferably has a Intermediate piece, wherein the bow upper part over the intermediate piece screwed to the lower bracket. This will be the one an exact alignment of bow top to bottom bracket allows. Furthermore, the bracket by a modified dimension, in particular the height of the intermediate piece to different Lengths of the punch tool or to different Strengths of the plate tool can be adjusted. Also can by simply replacing the intermediate piece the device or the punching bracket to different strengths of Workpiece adapted.
  • the device of the invention preferably has a clamping device for clamping and holding the workpiece to a safe Handling of the device without a bending of the Workpiece during punching to ensure.
  • the clamping device can have at least two coplanar rails have, on each of which a clamping jaw for clamping and holding the workpiece is arranged, whereby a secure Holding the workpiece in the intended punching position is possible.
  • the clamping jaw along the rail movable be a quick adaptation to differently sized To enable workpieces.
  • the clamping jaw can be mounted on or on a carriage be guided on the rail and movable or displaceable is.
  • the single rail of the clamping device is preferred only attached at one of its ends to the bracket bottom while the other end of the rail is levitating.
  • the rails can be screwed to the lower bracket be.
  • two rails are present, with an angle between coplanar longitudinal axes of the rails is 90 °, thereby a safe support possibility for the workpiece realized relatively little equipment.
  • a flange plate can be provided at the end of the lower bracket be, on the rails by means of screws in threaded holes screwed to the flange plate, creating a simple, angular realignment of the rails and thus of the clamping device is possible.
  • a tapping group with several is per rail Threaded holes provided in the flange plate in such a way that the rails with different angles between their Longitudinal axes and / or between the individual longitudinal axes of Rails and a longitudinal axis of the lower bracket to the Gland plate can be arranged or screwed.
  • the device of the invention preferably has a return spring device, which carries the punch tool and in the stroke direction the punch tool acts.
  • the device of the invention preferably has a guide bushing for the stamping tool, wherein the return spring means may be provided in a wall of the guide bush.
  • the return spring means may include a plurality of reset units have each having a return spring and a pin, wherein each reset unit in an associated, the front side formed in the wall of the guide bush bore such is housed, that the pin with one end the return spring touched and with the other, free end as a support or carrier of the punch tool protrudes from the bore, wherein the pin center axes are parallel to a center axis the opening in the temple top are.
  • the device of the invention may have an additional, inner Guide sleeve, which on the return spring means rests.
  • the invention also relates to a device for holding a Punching tool with an outer, substantially cylindrical Mold provided for punching a workpiece with the device having a punch tool holder has a through hole into which the punch tool is insertable and in the punches tool so is held and guided that the punches tool for Punching the workpiece is aligned.
  • the invention also relates to a stamping tool with an outer, substantially cylindrical shape for use in one of the above-explained devices of the invention, wherein the stamping tool a stamp part and an additional or further, inner return spring means for resetting of the stamp part after the stamp part has a Punching stroke has executed.
  • the stamping tool of the invention may be a cap sleeve for Hold the stamp part.
  • Fig. 1 is an exploded view of a preferred embodiment the device 1 of the invention for holding a Stamping tool 9 or punch tool for punching a Workpiece shown.
  • the device 1 has a collapsible Stirrup 2 or punching bar, which is a temple top 2.1 or a Punch holder, a square spacer 2.2 and a lower bracket 2.3 or has a die holder, a guide bush 3, an annular plate bushing 4 for receiving a plate tool 8 or a punching die, an annular Cylinder 5, a flange plate 7, on the lower bracket 2.3 is attached, a clamping device 6 for Clamping and holding e.g. a plate-shaped workpiece (not shown), in particular a metal sheet, the punched and to be processed, and a return spring means 10, which is shown in more detail in Fig. 4 (see also Fig. 2 and Fig. 3).
  • the strap 2 has an elongated center section 2.11 that connects to one end in a widened attachment portion 2.12 and at the other end in an annular or eye-shaped, free end section 2.13 passes, which one of a plan Top 2.17 to plan for this underside 2.18 of the ironing top 2.1 through opening 2.19 or recording encloses.
  • the opening 2.19 has a center axis coaxial with a fictitious main axis Z of the device 1 is.
  • At the top 2.17 of the annular end section 2.13 is within the opening 2.19 formed a graduation 2.20, on which the cylindrical guide bush 3 with a on its outer periphery protruding seat ring 3.1 in the assembled state of Device 1 rests.
  • the guide bush 3 carries the punching tool inserted into it 9, which may be predetermined in the cylindrical shape, in Lifting direction H, which is parallel to the main axis Z, and carries the punch tool 9.
  • a return spring means 10 In the guide bush 3 is a return spring means 10, the several reset units 10.1, here four in total.
  • the reset units 10.1 each have a return spring 10.3, e.g.
  • each reset unit 10.1 being in an associated, formed on the front side in the wall of the guide bushing 3 Hole 10.4 is housed such that the pin 10.2 touched with one end the return spring 10.3 and with the other, free end as a support or support of the stamping tool 9 protrudes from the bore 10.4, wherein the pin axes or the center axes of the holes 10.4 parallel to the major axis Z of the device 1 are. That in the guide bush 3 used punch tool 9 sits with his seat ring 9.1 on the pins 10.2 of the return spring device 10th on.
  • the spacer 2.2 of the bracket 2 sets the distance between the underside 2.18 of the bracket shell 2.1 and a plan Top 2.37 of the bottom bracket 2.3 firmly. It has two rows of through threaded holes 2.21, which are the threaded holes of the ironing top 2.1 continue coaxially, and two arranged in series alignment pins 2.22, in corresponding Alignment holes on the underside 2.18 of the top bracket 2.1 and also in corresponding alignment holes on the top 2.37 of the lower bracket 2.3 in the assembled state of the bracket 2 intervene.
  • the one-piece bracket bottom 2.3 or the die holder of Hanger 2 has an elongated center section 2.31, which at one End in a widened attachment section 2.32 and at the other end merges into an annular end section 2.33, the one of the flat top 2.37 of the bottom bracket 2.3 from accessible bottom opening 2.39 or recording encloses.
  • the continuous bottom opening 2.39 has a Center axis in turn coaxial with the fictitious main axis Z. the device 1 is.
  • the bottom bracket has a flat bottom 2.38, in the area of the lower part opening 2.39 of a flange plate 7 is formed, which also has a bottom ring 7.3 of the lower part opening 2.39 forms.
  • In the opposite Mounting section 2.32 of the lower bracket 2.3 are again two spaced rows of threaded holes 2.34 formed, the threaded holes 2.24 of the intermediate piece 2.2 continue coaxially.
  • the flange plate 7 has a first, right-side flange extension 7.1 and a second left-hand flange extension 7.2, seen in the direction of the drawing sheet of Fig. 4.
  • a first threaded hole group 7.4 upper side formed the has several threaded holes whose center axes parallel to the major axis Z of the device 1 are.
  • a second threaded hole group 7.5 formed is formed, in turn, several threaded holes has, whose center axes parallel to the main axis Z the device 1 are.
  • the tapping groups 7.1 and 7.2 serve to different orientations and angle settings to realize the chuck 6.
  • the cylinder 5 or the bush is in the lower part opening 2.39 used and by Allen screws and associated threaded holes bolted to the bottom ring 7.3.
  • the open one Cylinder 5 is formed such that it the plate bushing 4th record and hold them securely, which in turn can be recorded and mounting the plate tool 8 is.
  • the cylinder 5 has a plurality of threaded bores formed on the front side 5.1, which are designed such that associated screwed Allen screws 5.2 with her head the Clamp plate bushing 4 in cylinder 5.
  • the bow upper part 2.1 and the lower bracket 2.3 are assembled Bracket 2 aligned with each other, that the center axes of the lower part opening 2.39 and the Endabsacrificingsrings 2.33, the cylinder 5, the plate bushing 4, the End section rings 2.13 or the opening 2.19 and the guide bushing 3 coincide and coaxial with the main axis Z of Device 1 are.
  • the symmetry axes of the device 1 inserted punch tool 9 and the plate tool. 8 are then also coaxial with the main axis Z of the device. 1
  • the clamping device 6 for clamping, aligning and holding a workpiece to be punched has a first rail 6.1, a first carriage 6.3, which can be moved along the rail 6.1 or is movable, a first adjustable jaw 6.5, which is mounted on the slide 6.3, and a first Support plate 6.7 for supporting the placed workpiece, e.g. prefers at an edge region of the workpiece.
  • the rail 6.1 is a set of fixing screws 6.9 in corresponding threaded holes of the rail 6.1 provided for securing the first rail 6.1 in the first threaded hole group 7.4 of the flange extension 7.1 of Flange plate 7 are provided.
  • the clamping device 6 has furthermore a second rail 6.2, an associated second Carriage 6.4, along the rail 6.2 movable or movable is a second, adjustable jaw 6.6, which on the carriage 6.4 is fixed, and a second support plate 6.8 for supporting the placed workpiece, preferably at the Border area.
  • a mounting end of the rail is 6.2 turn a set of mounting screws 6.10 in appropriate Tapped holes of the rail 6.2 provided for Screw in the second tapping group 7.5 of Flange extension 7.2 of the flange plate 7 for securing the Rail 6.2 are provided on the flange plate 7.
  • the Carriage 6.3 and 6.4 are on the respective rail 6.1 or 6.2 guided movable and lockable in the selected position.
  • Fig. 11 to 14 are different perspective view the assembled device 1 of Fig. 1, each with different Orientations of the chuck 6 shown.
  • an angle between a longitudinal axis C is of the lower bracket 2.3 and a longitudinal axis A of the rail 6.2 the clamping device 6 seen counterclockwise 45 °, while an angle between the longitudinal axis C of the lower bracket 2.3 and the longitudinal axis B of the rail 6.1 of the clamping device 6 is also 45 ° clockwise.
  • an angle between the longitudinal axis C is of the lower bracket 2.3 and the longitudinal axis A of the rail 6.2 the clamping device 6 seen counterclockwise while 0 °, while an angle between the longitudinal axis C of Bottom bracket 2.3 and the.
  • Longitudinal axis A of the rail 6.2 of Clamp 6 seen clockwise here is 90 °.
  • an angle between the longitudinal axis C is of the lower bracket 2.3 and the longitudinal axis A of the rail 6.2 the clamping device 6 seen counterclockwise 180 °, while an angle between the longitudinal axis C of the lower bracket 2.3 and the longitudinal axis A of the rail 6.2 of the clamping device 6 is 90 ° seen in the clockwise direction.
  • the angle between the two rails 6.1 and 6.2 of the clamping device 6 is in the four preceding examples each 90 ° or 270 °.
  • the device 1 is prepared, as follows is explained by way of example.
  • the plate bushing 4 of the lower bracket 2.3 becomes the plate tool 8 or the punching die from the top 2.37 of the lower bracket 2.3 used ago.
  • the clamping device 6 of the device 1 set and aligned. It will be first the rails 6.1 and 6.2 in the required position on the Screwed flange 7. Then the slides 6.3 and 6.4 adjusted on the rails 6.1 and 6.2 to the clamping device 6 to adapt to the workpiece. The workpiece is lying now on the support plates 6.7 and 6.8 of the clamping device.
  • the cylindrical stamping tool 9 is from the top, so from the top 2.17 of the Bow top 2.1 ago, in the guide bush 3 or opening 2.19 inserted or inserted and sits with his seat ring 9.1 on the pins 10.2 of the return spring means 10. If necessary, now the punch tool 9 within the Guide bush 3 are rotated about the main axis Z to the Align punch tool 9.
  • the lifting force for punching in the stroke direction H can from any lifting machine with sufficient lifting force can be applied for punching, in the finished assembled device 1 with stamping tool 9, Plate tool 8 and workpiece is arranged or in this is spent.
  • the punch tool 9 in FIG. 3 is shown in FIG Form and the structure shown and can be used e.g. one Be cutting punch. Also associated with that shown in FIG Plate tool 8 is set in the cylindrical shape shown and may be e.g. be an insert.
  • Figs. 5, 6, 7 and 8 show views of a preferred embodiment the cylindrical punch tool 30 of the invention, a cylindrical main body 23 and scraper, the is formed rotationally symmetrical to a symmetry axis S and a longitudinal guide groove 23.2 for guiding a pin 40.2 has, a lifting plate 20, on the lifting force of a lifting machine can act, an annular container 22 for receiving a return spring set 21 of an inner main body return spring device, an elongated lift rod 29, which is guided in the interior of the main body 23, a coupling sleeve 24, an upper ring 25 and a lower ring 26 with Twist lock 26.1 and a given, known stamp 27 or punch.
  • the cylindrical punch tool 30 is used e.g. composed, by first the lower ring 26 and then the upper ring 25 on the punch 27 are pushed and then on top of each other a stop plate 27.1 of the punch 27 rest, wherein a Stamp cylinder 27.2 passes through the rings 26 and 25. Subsequently, the coupling sleeve 24 is laterally over the Stamp cylinder 27.2 pushed, with an inner projection 24.1 of the coupling sleeve 24 in an associated circumferential groove 27.3 the punch 27 engages the punch 27 on the coupling sleeve 24 hold. Then, the main body 23 on the Cartridge 24, the upper ring 25 and the lower ring 26th attached, with corresponding, coherent cavities in Inside the main body 23 are occupied.
  • the annular container 22 is then attached to the main body 23 and lies on a step 23.1 of the main body 23.
  • the return springs of the return spring set 21 are in the container 22 inserted and the lifting plate 20 is on the return spring set 21 and the container 22 and placed by means of retractable Allen screws 28 attached to the main body 23.
  • the Lifting rod 29 is passed through the lifting plate 20 in the Main body 23 introduced and terminal in the coupling sleeve 24 screwed.
  • the center axes or symmetry axes of the Stamp 27 In the assembled state of the stamping tool fall the center axes or symmetry axes of the Stamp 27, the upper ring 25, the lower ring 26, the Coupling sleeve 24, the container 22, the lifting rod 29 and the Lifting plate 20 with the axis of symmetry S together.
  • the middle axes the springs of the spring set 21 are parallel to the axis of symmetry S.
  • the punch tool 30 has an assembled state in the essential cylindrical shape and may in a further embodiment the device of the invention can be used 9 in cross section with inserted, assembled, cylindrical punch tool 30 and in Fig. 10 in a perspective view, also with inserted stamping tool 30, is shown.
  • FIG. 4 In contrast to the embodiment of the invention according to FIG. 4 has the embodiment shown in FIG. 9 and FIG Punching device of the invention an additional, inner guide sleeve 40 or a hold-down with a flange Projection ring 40.1 and another guide longitudinal groove 40.4 for the engagement of a guide pin 40.3.
  • the projection ring 40.1 of the inner guide sleeve 40 is located on the pins 10.2 of the return spring device 10 in the guide bushing 3rd on.
  • a projection 22.1 of the spring tank 22 is seated on the Front side of the inner guide sleeve 40.
  • the return springs are first 10.3 compressed until the inner guide sleeve 40th or the hold-down with the underside on the surface the workpiece is seated or abuts against this. Only after the return springs of the return spring set 21 by the lifting force compressed, wherein the main body 23rd together with the punch 27 within the inner guide sleeve 40 lowers and punching the workpiece through the Punch 27 is executed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Drilling And Boring (AREA)
EP05001800A 2004-01-29 2005-01-28 Dispositif de support d'un outil de poinçonnage Withdrawn EP1559486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420001360 DE202004001360U1 (de) 2004-01-29 2004-01-29 Vorrichtung zum Haltern eines Stempelwerkzeugs
DE202004001360U 2004-01-29

Publications (1)

Publication Number Publication Date
EP1559486A1 true EP1559486A1 (fr) 2005-08-03

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ID=32103759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001800A Withdrawn EP1559486A1 (fr) 2004-01-29 2005-01-28 Dispositif de support d'un outil de poinçonnage

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EP (1) EP1559486A1 (fr)
DE (1) DE202004001360U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024971B3 (de) * 2008-05-23 2009-12-31 Audi Ag Stanzwerkzeug zum Herstellen von Durchbrüchen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427409A (en) * 1945-12-12 1947-09-16 Frank K Kirsch Die and punch mechanism
US2708970A (en) * 1951-01-26 1955-05-24 Wales Strippit Corp Punch holder with controllable lifting spring
US2882971A (en) * 1956-09-20 1959-04-21 George F Wales Punch construction and guide therefor
US3772954A (en) * 1972-07-28 1973-11-20 Ruwe T De Piercing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427409A (en) * 1945-12-12 1947-09-16 Frank K Kirsch Die and punch mechanism
US2708970A (en) * 1951-01-26 1955-05-24 Wales Strippit Corp Punch holder with controllable lifting spring
US2882971A (en) * 1956-09-20 1959-04-21 George F Wales Punch construction and guide therefor
US3772954A (en) * 1972-07-28 1973-11-20 Ruwe T De Piercing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024971B3 (de) * 2008-05-23 2009-12-31 Audi Ag Stanzwerkzeug zum Herstellen von Durchbrüchen

Also Published As

Publication number Publication date
DE202004001360U1 (de) 2004-04-08

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