US3779113A - Punching unit - Google Patents

Punching unit Download PDF

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Publication number
US3779113A
US3779113A US00169259A US3779113DA US3779113A US 3779113 A US3779113 A US 3779113A US 00169259 A US00169259 A US 00169259A US 3779113D A US3779113D A US 3779113DA US 3779113 A US3779113 A US 3779113A
Authority
US
United States
Prior art keywords
punch
sleeve
bore
stripper
stop member
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.)
Expired - Lifetime
Application number
US00169259A
Other languages
English (en)
Inventor
P Jestin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3779113A publication Critical patent/US3779113A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2135—Moving stripper timed with tool stroke
    • Y10T83/215—Carried by moving tool element or its support
    • Y10T83/2155—Stripper biased against product
    • Y10T83/2159—By spring means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
    • Y10T83/8785—Through return [noncutting] stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9476—Tool is single element with continuous cutting edge [e.g., punch, etc.]

Definitions

  • a stop member limiting the Mar 4 [971 France 7107458 upward stroke of the external sleeve, having a punch slidably mounted therein is, fitted in a transverse bore [52]
  • B26d7/06 B26d 1/00 of the punching unit engages a longitudinal slot 58
  • Field arses Eli 83/695 694 697 rme in eiiis tem l v r fimr sm s 4 6 tained in said bore by an expansion ring.
  • a striker plate or punch head capping the upper portion of the [56] References Cited external sleeve is secured to the flange constituting the upper portiongf the sleeve by meansof a retaining UNITED STATES PATENTS spring.
  • an external sleeve or sleeve 4 Slidably fitted in the vertical cylindrical bore 2 of the upper arm of the punching unit body is an external sleeve or sleeve 4 having an inner lower shoulder 5 supporting a coaxial stripper or stripping member 6 constantly urged towards this shoulder by a spring or istn'pper spring 7 reacting against a circlip 8 with its .10 upper end.
  • the punch proper 9 is guided by this stripping member 6 and also by the counter-punch l0 slidably engaged in turn in said external sleeve 4.
  • a striker plate or punch carrier 11 comprising the head of punch 9 is retained in a flange 12, constituting intended for punching holes of different diameters the pp P O 0f the external Sleeve y a tool replacement cannot take place unless long and tedious unscrewing and screwing operations are accomplished.
  • the present invention provides a punching unit characterized in that the tools (punch and die) thereof are adapted to be fitted and secured in position without resorting to any screwing operation.
  • a stop member is provided for limiting the upward stroke of the external sleeve, which is urged upwards by a return spring, and which has the punch slidably mounted therein.
  • the stop member is slidably mounted in a transverse bore extending one.
  • the stop member is retained in said bore by an expansion ring or spring ring.
  • the striker taining circlip 13 preferably in the form of a spring clip.
  • the flange 12 bears on the sleeve shoulder, as shown.
  • the stop member 14, disposed in a radial bore, is
  • the stop member has an inner end portion 17 engaged in an elongated or aperture slot 18 formed in the external sleeve 4.
  • the upward stroke limiting stop member 14 is retained in the outer end of the upper arm of body 1 of this punching unit by an expansion ring 19.
  • removing and changing the punch 9 is a particularly simple operation, since it is only necessary to pull the stop member 14 which unlocks and releases the external sleeve 4 with all the parts associated therewith from the upper arm of the punching unit.
  • the die 23 is an easy fit in the bore 3.
  • the lower face 24 of the die 23 engages a shoulder 25 formed in the bore 3.
  • a notch 26 extending radially from said bore and down to a level lower than that of said plate or punch head capping the upper end of the shoulder 25 permits the use of a pointed or like tool external sleeve is secured to the flange constituting said upper end by means of a keeper spring preferably in the form of a spring clip.
  • the die proper is simply engaged with an easy fit in a shouldered bore formed to this end in the outer end of the lower arm of the punching unit body.
  • the lower face of the die bears on said shoulder.
  • the diereceiving bore comprises a radial notch extending axially below said lower face and shoulder in order to afford an easy access to the die proper.
  • a punching unit comprising a jaw-shaped body of which the upper arm has formed therethrough a vertical cylindrical bore adapted to receive the punch the corresponding die of which is aligned therewith and fitted in the lower arm of said body, a sleeve slidably” mounted in said bore, an inner shoulder at the lower portion of said sleeve, a coaxial stripper comprising at its upper portion a flange bearing on said sleeve shoulder, a punch carrier mounted in the upper portion of said sleeve, a punch having its lower portion guided by said stripper and its upper portion provided with an integral head bearing on said punch carrier, a first relatively powerful spring surrounding said punch within said sleeve and bearing at one end against said stripper flange and at its other end against the lower portion of said punch carrier, at least one axially displaced external spring weaker than said first spring and constantly urging said sleeve upwards in said bore, said sleeve havgated aperture abuting against inner said end portion to
  • a punching unit comprising:
  • a jaw-shaped body having an upper arm and lower arm, the upper arm being provided with a vertical bore adapted to receive a punch and a radial bore in communication with the vertical bore, the lower arm adapted to receive a die,
  • means for carrying the punch mounted in the sleeve and including means for retaining the punch in the sleeve,
  • biasing means interposed between the stripper and the punch-carrying means
  • an axially displaced external biasing means for constantly urging the sleeve upwards in the bore, the external biasing means being weaker than the biasing means interposed between the stripper and punch-carrying means,
  • a stop member normally extending through the radial bore into the vertical bore and terminating at the longitudinal slot and wherein the stripper means for carrying the punch and the punch are simultaneously removed from the sleeve by the manual removal of the stop member and the means for retaining the punch in the sleeve.
  • stop member includes an external control knob for actuating the stop member and an inner end portion which engages the longitudinal slot, the lower edge of the slot abutting against the end portion to limit the upward stroke of the sleeve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00169259A 1971-03-04 1971-08-05 Punching unit Expired - Lifetime US3779113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107458A FR2127331A5 (fr) 1971-03-04 1971-03-04

Publications (1)

Publication Number Publication Date
US3779113A true US3779113A (en) 1973-12-18

Family

ID=9072899

Family Applications (1)

Application Number Title Priority Date Filing Date
US00169259A Expired - Lifetime US3779113A (en) 1971-03-04 1971-08-05 Punching unit

Country Status (7)

Country Link
US (1) US3779113A (fr)
BE (1) BE766796A (fr)
CA (1) CA976870A (fr)
CH (1) CH532456A (fr)
DE (1) DE2124788C3 (fr)
ES (1) ES197180Y (fr)
FR (1) FR2127331A5 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935772A (en) * 1975-03-21 1976-02-03 Houdaille Industries, Inc. Punching device having selectable pinch point clearance
US4757589A (en) * 1985-08-30 1988-07-19 Yoshida Kogyo K. K. Apparatus for removing fastener members from a garment fabric
US4993295A (en) * 1988-12-08 1991-02-19 Utica Enterprises, Inc. Punch stripper
US5054347A (en) * 1988-08-19 1991-10-08 Mate Punch & Die Co. Punch assembly with improved disassembly features
US5056392A (en) * 1988-08-19 1991-10-15 Mate Punch & Die Co. Punch assembly
US5081891A (en) * 1988-08-19 1992-01-21 Mate Punch & Die Co. Punch assembly
US5832798A (en) * 1994-08-10 1998-11-10 Mate Precision Tooling Inc. Punch unit
US5934165A (en) * 1997-03-19 1999-08-10 Strippit, Inc. Adjustable punch assembly
US6196103B1 (en) 1998-08-17 2001-03-06 Mate Precision Tooling Inc. Punch guide assembly
US6205901B1 (en) 1998-09-16 2001-03-27 Tamarack Habilitation Technologies, Inc. Quick tool change for punch
US6622601B2 (en) 2000-01-26 2003-09-23 Hitachi Metals Ltd. Punch unit for punching a hole in a soft metal sheet
US6698324B2 (en) * 2000-01-26 2004-03-02 Hitachi Metals, Ltd. Punch unit for punching a hole in a soft metal sheet
US20050150338A1 (en) * 2004-01-13 2005-07-14 Morris Elynuik Slug pulling preventing tooling die
ITPN20100021A1 (it) * 2010-04-09 2011-10-10 Armenio Scattolon Stampo perfezionato per estrattore di punzoni
US20120000330A1 (en) * 2010-06-30 2012-01-05 General Electric Company Apparatuses and methods for cutting porous substrates
US10556358B2 (en) * 2014-11-11 2020-02-11 Eagle Ottawa North America, Llc Perforation system and method
US11466453B2 (en) * 2015-01-23 2022-10-11 United States Gypsum Company Wallboard punch assembly with stripper bushings
CN116689601A (zh) * 2023-07-28 2023-09-05 山东莱芜科瑞迪汽车配件有限公司 一种汽车板簧板料定位冲孔设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428286C2 (de) * 1994-08-10 1997-06-12 Mate Punch And Die Gmbh Stanzstempeleinheit
DE19505754C1 (de) * 1995-02-20 1996-05-02 Mate Punch And Die Gmbh Stanzstempeleinheit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079824A (en) * 1960-08-09 1963-03-05 Houdaille Industries Inc Punching device having a spring biased stripper
US3114280A (en) * 1960-12-14 1963-12-17 Houdaille Industries Inc Punching device
US3205742A (en) * 1963-07-11 1965-09-14 Dro Engineering Company Di Adjustable pierce unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525288A (fr) *
US2268787A (en) * 1941-02-17 1942-01-06 George F Wales Sheet metal perforating apparatus
US2760574A (en) * 1952-02-15 1956-08-28 Paul H Taylor Punch and die holder with eccentric stripper spring
US2928451A (en) * 1955-02-07 1960-03-15 Wales Strippit Corp Self contained perforating and countersinking unit
US2928450A (en) * 1955-02-07 1960-03-15 Wales Strippit Corp Self-contained perforating and countersinking unit
US3461762A (en) * 1967-03-06 1969-08-19 Unittool Punch & Die Co Inc Punch and die unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079824A (en) * 1960-08-09 1963-03-05 Houdaille Industries Inc Punching device having a spring biased stripper
US3114280A (en) * 1960-12-14 1963-12-17 Houdaille Industries Inc Punching device
US3205742A (en) * 1963-07-11 1965-09-14 Dro Engineering Company Di Adjustable pierce unit

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935772A (en) * 1975-03-21 1976-02-03 Houdaille Industries, Inc. Punching device having selectable pinch point clearance
US4757589A (en) * 1985-08-30 1988-07-19 Yoshida Kogyo K. K. Apparatus for removing fastener members from a garment fabric
US5054347A (en) * 1988-08-19 1991-10-08 Mate Punch & Die Co. Punch assembly with improved disassembly features
US5056392A (en) * 1988-08-19 1991-10-15 Mate Punch & Die Co. Punch assembly
US5081891A (en) * 1988-08-19 1992-01-21 Mate Punch & Die Co. Punch assembly
US4993295A (en) * 1988-12-08 1991-02-19 Utica Enterprises, Inc. Punch stripper
US5832798A (en) * 1994-08-10 1998-11-10 Mate Precision Tooling Inc. Punch unit
US5934165A (en) * 1997-03-19 1999-08-10 Strippit, Inc. Adjustable punch assembly
US6334381B1 (en) 1997-03-19 2002-01-01 Strippit, Inc. Adjustable punch assembly
US6196103B1 (en) 1998-08-17 2001-03-06 Mate Precision Tooling Inc. Punch guide assembly
US6205901B1 (en) 1998-09-16 2001-03-27 Tamarack Habilitation Technologies, Inc. Quick tool change for punch
US6622601B2 (en) 2000-01-26 2003-09-23 Hitachi Metals Ltd. Punch unit for punching a hole in a soft metal sheet
US6698324B2 (en) * 2000-01-26 2004-03-02 Hitachi Metals, Ltd. Punch unit for punching a hole in a soft metal sheet
US7210384B2 (en) * 2004-01-13 2007-05-01 Degelman Industries Ltd. Slug pulling preventing tooling die
US20050150338A1 (en) * 2004-01-13 2005-07-14 Morris Elynuik Slug pulling preventing tooling die
ITPN20100021A1 (it) * 2010-04-09 2011-10-10 Armenio Scattolon Stampo perfezionato per estrattore di punzoni
EP2374555A1 (fr) * 2010-04-09 2011-10-12 Armenio Scattolon Poinçon avec dévétisseur de poinçon
CN103119418B (zh) * 2010-06-30 2016-03-02 沃特曼国际有限公司 用于切割多孔基体的设备和方法
CN103119418A (zh) * 2010-06-30 2013-05-22 沃特曼国际有限公司 用于切割多孔基体的设备和方法
GB2493893B (en) * 2010-06-30 2015-04-15 Whatman Internat Ltd Apparatuses and methods for cutting porous substrates
US20120000330A1 (en) * 2010-06-30 2012-01-05 General Electric Company Apparatuses and methods for cutting porous substrates
US9321095B2 (en) * 2010-06-30 2016-04-26 General Electric Company Apparatuses and methods for cutting porous substrates
EP2588844B1 (fr) * 2010-06-30 2019-08-07 Whatman International Limited Appareils et méthodes de découpe de substrats poreux
US20210291397A1 (en) * 2010-06-30 2021-09-23 Qiagen Healthcare Biotechnologies Systems Gmbh Apparatuses and methods for cutting porous substrates
US10556358B2 (en) * 2014-11-11 2020-02-11 Eagle Ottawa North America, Llc Perforation system and method
US11466453B2 (en) * 2015-01-23 2022-10-11 United States Gypsum Company Wallboard punch assembly with stripper bushings
CN116689601A (zh) * 2023-07-28 2023-09-05 山东莱芜科瑞迪汽车配件有限公司 一种汽车板簧板料定位冲孔设备
CN116689601B (zh) * 2023-07-28 2023-09-26 山东莱芜科瑞迪汽车配件有限公司 一种汽车板簧板料定位冲孔设备

Also Published As

Publication number Publication date
FR2127331A5 (fr) 1972-10-13
ES197180U (es) 1975-04-01
DE2124788B2 (de) 1978-06-15
BE766796A (fr) 1971-10-01
CH532456A (fr) 1973-01-15
DE2124788C3 (de) 1979-02-15
CA976870A (en) 1975-10-28
DE2124788A1 (de) 1972-09-07
ES197180Y (es) 1975-09-01

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