EP3470147A1 - Appareil de poinçonnage hydraulique - Google Patents

Appareil de poinçonnage hydraulique Download PDF

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Publication number
EP3470147A1
EP3470147A1 EP18196871.0A EP18196871A EP3470147A1 EP 3470147 A1 EP3470147 A1 EP 3470147A1 EP 18196871 A EP18196871 A EP 18196871A EP 3470147 A1 EP3470147 A1 EP 3470147A1
Authority
EP
European Patent Office
Prior art keywords
punch
punching
die
carrier
unit
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
Application number
EP18196871.0A
Other languages
German (de)
English (en)
Other versions
EP3470147B1 (fr
Inventor
Thorsten Weyland
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.)
TKR Spezialwerkzeuge GmbH
Original Assignee
TKR Spezialwerkzeuge 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 TKR Spezialwerkzeuge GmbH filed Critical TKR Spezialwerkzeuge GmbH
Publication of EP3470147A1 publication Critical patent/EP3470147A1/fr
Application granted granted Critical
Publication of EP3470147B1 publication Critical patent/EP3470147B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D28/243—Perforating, i.e. punching holes in profiles
    • 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
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools

Definitions

  • Punching devices of the type mentioned are used to bring in a punching operation holes in one or more sheets, which then subsequently serve to receive suitable fasteners, such as. Blind rivets, blind rivet and / or blind rivet nuts.
  • the sheets to be processed are arranged in the punching device between the punch and the punching die, so that subsequently a hole selected according to the punch can be punched into the sheet, for which purpose the punch is adjusted in the direction of the punching die.
  • the punches are releasably arranged on a punch carrier of a piston unit of a hydraulic unit, wherein the piston unit is movable in its longitudinal axis direction by a drive of the hydraulic unit and thereby drives the punch through the sheets to be processed.
  • the present invention seeks to provide a punching device, which allows the production of differently shaped holes in a reliable manner.
  • Characteristic of the hydraulic punching device is that the punch can be exchangeably arranged on the punch carrier has a different from a circular cross-section punching cross-section.
  • the cross-sectional shape of the punches, perpendicular to its longitudinal axis, which corresponds to the punching cross section, is basically freely selectable, whereby differently configured holes can be produced in a reliable manner by punching, wherein the punch associated punching die each having a punching cross-section corresponding die opening.
  • the hydraulic punching unit has a punching guide unit with a guide element which abuts at least in sections on the punch such that the punch is rotationally secured.
  • a stamping punch guide unit is arranged on the hydraulic punching device, for example, releasably secured.
  • the punch guide unit prevents the punch bwsp. is twisted due to a rotation of the drive piston of the piston unit during the punching operation.
  • the guide element which is supported on the punching device via the punching-and-punch guiding unit rests at least in sections on an outer side of the punching punch running parallel to the adjustment direction of the punching punch, so that a rotation of the punching punch is prevented by the cross-sectional shape of the punching punch deviating from a circular shape. An alignment of the punch can thus be done by an operator of the punching device in a simple manner by an alignment of the punching device.
  • the stamping punch guiding unit arranged in the region between the punching stamp carrier and the punching die also prevents a radial displacement of the stamping punch during the punching process.
  • the configuration of the stamping punch guide unit which can be arranged, for example, detachably on the hydraulic punching device, is basically, as well as the configuration of the guide element, freely selectable.
  • the guide element may be formed by a receiving opening adapted to the stamped cross section on the punch guide unit.
  • the guide unit leads to a reduction of the stroke movement of the punch. According to an advantageous embodiment of the invention it is therefore provided that the guide element displaceable in the adjustment direction of the punch on a receiving unit of Stanzstkov arrangementsaku is stored.
  • the punch guide unit has a receiving unit, on which the guide punch leading the punch is slidably mounted.
  • the displaceability of the guide element makes it possible to avoid a Hubreduzitation by the arrangement of the punch guide unit in the area between the punch carrier and the punching die.
  • the punch is guided by the guide element.
  • the punch moves after an axial stop of a stop surface of the punch, which extends in the region of the punch carrier during the punching process, the guide element in the direction of the punching die.
  • the guide element is in turn guided on the receiving unit of the punch guide unit, so that the guide element at the same time causes a reliable rotation of the punch over the entire stroke range.
  • the arrangement of the guide element on the receiving unit is basically arbitrary. According to a particularly advantageous embodiment of the invention, however, it is provided that the guide element is biased in the direction of the punch carrier, in particular spring-biased.
  • a bias of the guide element in the direction of the punch carrier in the case of its displaceable mounting on the receiving unit ensures that the guide element is reliably guided during the entire punching operation. After reaching a position of the punch during the punching process, in which the punch abuts with a stop surface on the guide element, this is displaced against the spring bias in the direction of the punching die, the guide element continues to lead the punch reliably. After a return displacement of the punch, the guide element automatically passes into his due to its spring bias Starting position.
  • any desired spring elements in particular tension springs, can be used to generate the preload.
  • receiving unit and die carrier of the punch guide unit is basically arbitrary. Thus, for example, these can be designed as separate elements, which can be arranged individually on the hydraulic punching device. According to a particularly advantageous embodiment of the invention, however, it is provided that the receiving unit and the die carrier are formed as a one-piece base support. According to this embodiment of the invention, the receiving unit for receiving the guide element and the die carrier for receiving the die are integrally formed.
  • a corresponding configuration allows a particularly simple arrangement of the punch guide unit on the hydraulic punching device, for which purpose only the base support of the punch guide unit with the punching device, eg. A punching bar must be connected.
  • the die carrier can be supported on a stirrup end opposite the punch carrier or screwed thereto, so that the receiving unit is reliably arranged between the punch carrier and the punch die.
  • An alternative or supplementary position assurance of the basic carrier of the punch guide unit can, for example, be carried out by further securing legs, which can be fastened on the one hand to the base support and on the other hand to the punching bar.
  • the receiving unit has a receiving opening for interchangeable arrangement of the guide element and / or the die carrier a die holder for the interchangeable arrangement of a punching die.
  • this embodiment of the invention it is possible to use the guide unit with different punching dies using a standardized receiving unit and a standardized die carrier.
  • a standardized receiving unit and a standardized die carrier In the case of the need of another punching cross section only a replacement of the punch and the punching die and not the entire guide unit is required. It must be replaced only the guide element and the punching die, with the used to Punch adapted guide elements and punching dies are arranged in the receiving opening or die receiving.
  • This embodiment of the invention allows a particularly cost-effective operation, after a correspondingly designed this development punch punch guide unit can be used with a variety of punches.
  • the base support is designed for releasable connection with a punching of the punching device.
  • a connection with the punching bar can be realized inexpensively in a particularly simple manner.
  • a particularly reliable support during the punching process is achieved in particular by the fact that the die carrier is formed according to an advantageous development of the invention on its side opposite the die receiving side for abutment with the punching bar. As a result, a reliable power transmission is ensured by the die receiving on the stamping during the punching process.
  • the receiving unit and the die carrier are formed as one-piece basic carrier
  • the basic carrier in the area between the receiving unit and the die carrier an abutment portion for the arrangement of a workpiece having.
  • the abutment portion may, for example, be formed by a longitudinal groove, which is open on one side and thus enables a reliable arrangement of a workpiece to be punched in the region between the die carrier and the receiving unit.
  • the contact section ensures a good positioning, after this can also be used to support the workpiece to be punched.
  • Punching apparatus 1 shown in a side view has a hydraulic unit 15 and a punching stirrup 13 connected to the hydraulic unit 15.
  • a piston of the hydraulic unit 15, not shown here makes it possible to adjust a punch carrier 3 for punching in the longitudinal axis direction of a punch 2 arranged on the punch carrier 3 in the direction of a punching die 4.
  • the punching device 1 it is thus possible, in the area between the punch 2 and the punching die 4 can be arranged workpieces, for example. Sheets to provide with holes.
  • the punch 2 is arranged with a connecting pin 21 in a punch recording 22 of the punch carrier 3. (see. Figure 1 to 3 )
  • the stamping punch carrier 3 is designed to detachably receive the stamping punch 2, wherein it has no circular cross section, but a punched cross section through which a slot can be produced.
  • the punch 2 is additionally guided at its periphery by a guide element 7 of a punch guide unit 6, wherein the guide member 7 rests with a guide portion 18 on an outer surface of the punch 2.
  • the guide member 7 thus prevents rotation of the punch 2 during the punching operation and ensures a constant alignment of the punch 2 relative to the punching bow thirteenth
  • the guide element 7 is in turn arranged displaceably in the longitudinal axis direction of the punch 2 on a receiving unit 8, wherein the receiving unit 8 for this purpose has a receiving opening 11, which is adapted to a guide element 20 of the guide member 7.
  • the receiving unit 8 for this purpose has a receiving opening 11, which is adapted to a guide element 20 of the guide member 7.
  • end position passes in the region of the punch carrier 3 extending paragraph of the punch 2 at a punch stamp carrier 3 facing end face of the guide member 7 to the plant and then moves this within the receiving opening 11 in the direction of a die carrier 9, which adapted to the arrangement of a punch 2 Punching die 4 with a die opening corresponding to the die cross-section 5 has a die holder 12.
  • the punch 2 extends with its punched cross-section through the die opening 5 of the punching die 4.
  • a return displacement of the punch 2 in the direction of the in FIG. 4 illustrated starting position also enters the guide member 7 in its initial position, which is considered in the direction of the punch carrier 3 in the starting position on a screwed in the receiving unit 8 cover plate 19 to the plant. Due to the securing position of the guide element 7 relative to the punch 2, this additionally serves as a scraper in the return movement.
  • the receiving unit 8 and the die carrier 9 of the punch guide unit 6 are part of a one-piece base support 10, which has an elongated contact portion 14 for the arrangement of a workpiece in the region between the punching die 4 and the punch 2.
  • the base support 10 is screwed in the region of the die carrier 9 with an end of the punching stirrup 13 opposite the punch carrier 3.
  • An additional securing position of the base support 10 of the punch guide unit 6 to the punching bracket 13 is effected by two outside of the punching bracket 13 fitting and screwed with this locking leg 17.
  • At its opposite end of the punching clip securing hook 17 are also bolted to a retaining web 16. This forms together with a portion of the receiving unit 8 and portions of the securing leg 17 an opening for the guide element. 7
  • the guide element 7 is biased in the direction of the punch carrier 3 via spring elements 23 which act on one end on the cover plate 19 and the other end on the guide element 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP18196871.0A 2017-10-12 2018-09-26 Appareil de poinçonnage hydraulique Active EP3470147B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017123723.2A DE102017123723B4 (de) 2017-10-12 2017-10-12 Hydraulisches Stanzgerät

Publications (2)

Publication Number Publication Date
EP3470147A1 true EP3470147A1 (fr) 2019-04-17
EP3470147B1 EP3470147B1 (fr) 2020-11-04

Family

ID=63685716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18196871.0A Active EP3470147B1 (fr) 2017-10-12 2018-09-26 Appareil de poinçonnage hydraulique

Country Status (3)

Country Link
US (1) US10773293B2 (fr)
EP (1) EP3470147B1 (fr)
DE (1) DE102017123723B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230107079A1 (en) * 2019-07-17 2023-04-06 Milwaukee Electric Tool Corporation Stud punch
CN113305193B (zh) * 2021-06-10 2023-05-05 江西时代包装供应链管理有限公司 金属包装容器加工用冲压装备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137193A (en) * 1960-11-04 1964-06-16 Lawrence V Whistler Punch and die mounting device
US3211035A (en) * 1963-08-20 1965-10-12 Sr Lawrence V Whistler Punch stripper apparatus
US3335627A (en) * 1964-04-14 1967-08-15 Pierce All Mfg Ltd Punch assembly
US4667411A (en) * 1985-09-09 1987-05-26 Mccallum Orval C Hand-held powered gasket punch
EP2316588A2 (fr) * 2009-10-30 2011-05-04 Peddinghaus Corporation Commande pour presse de poinçonnage
WO2017021363A2 (fr) * 2015-08-03 2017-02-09 Gustav Klauke Gmbh Mâchoires de poinçonnage et poinçonneuse dotée d'un manchon de poinçonnage et d'une ouverture de poinçonnage
EP3150297A1 (fr) * 2015-09-30 2017-04-05 TKR Spezialwerkzeuge GmbH Découpeuse hydraulique ainsi que support de poinçon de découpage pour découpeuse hydraulique
DE102015225569A1 (de) * 2015-12-17 2017-06-22 Volkswagen Aktiengesellschaft Werkzeug zum Schneiden eines Bauteils

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667258A (en) * 1900-08-03 1901-02-05 Frank J J Sloat Rail-piercing machine.
US2357306A (en) * 1943-04-24 1944-09-05 Dale A Benner Punch
US2536709A (en) * 1948-12-31 1951-01-02 Electrol Inc Portable hydraulic press
DE1911840U (de) 1965-01-09 1965-03-11 Klockner Moeller Elek Zitaets Hand-stanzgeraet.
US5081891A (en) * 1988-08-19 1992-01-21 Mate Punch & Die Co. Punch assembly
US5070616A (en) * 1991-04-22 1991-12-10 Chen Chin L Hydraulic type pipe cutter
WO1999041046A1 (fr) * 1998-02-16 1999-08-19 Ryobi North America, Inc. Appareil permettant de perforer les charpentes d'acier
EP1922191B1 (fr) * 2005-08-08 2013-02-20 David J. Moellering Devetisseur de poinçons pour un dispositif de retenue de poinçons
JP5567254B2 (ja) * 2007-05-22 2014-08-06 株式会社アマダ パンチ金型
US8141466B2 (en) * 2008-08-06 2012-03-27 Magna International Inc. Punch device for piercing hydro-formed member
EP2177289B1 (fr) * 2008-10-20 2011-07-06 TRUMPF Werkzeugmaschinen GmbH + Co. KG Machines-outils et procédé destinés à l'évacuation d'une partie d'une pièce à usiner
DE102015116560B4 (de) 2015-09-30 2018-08-09 Tkr Spezialwerkzeuge Gmbh Hydraulisches Stanzgerät sowie Stanzmatrize für Stanzgerät

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137193A (en) * 1960-11-04 1964-06-16 Lawrence V Whistler Punch and die mounting device
US3211035A (en) * 1963-08-20 1965-10-12 Sr Lawrence V Whistler Punch stripper apparatus
US3335627A (en) * 1964-04-14 1967-08-15 Pierce All Mfg Ltd Punch assembly
US4667411A (en) * 1985-09-09 1987-05-26 Mccallum Orval C Hand-held powered gasket punch
EP2316588A2 (fr) * 2009-10-30 2011-05-04 Peddinghaus Corporation Commande pour presse de poinçonnage
WO2017021363A2 (fr) * 2015-08-03 2017-02-09 Gustav Klauke Gmbh Mâchoires de poinçonnage et poinçonneuse dotée d'un manchon de poinçonnage et d'une ouverture de poinçonnage
EP3150297A1 (fr) * 2015-09-30 2017-04-05 TKR Spezialwerkzeuge GmbH Découpeuse hydraulique ainsi que support de poinçon de découpage pour découpeuse hydraulique
DE102015225569A1 (de) * 2015-12-17 2017-06-22 Volkswagen Aktiengesellschaft Werkzeug zum Schneiden eines Bauteils

Also Published As

Publication number Publication date
US20190111464A1 (en) 2019-04-18
DE102017123723B4 (de) 2023-03-16
US10773293B2 (en) 2020-09-15
EP3470147B1 (fr) 2020-11-04
DE102017123723A1 (de) 2019-04-18

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