US3392617A - Punch assembly for perforating materials - Google Patents

Punch assembly for perforating materials Download PDF

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Publication number
US3392617A
US3392617A US53121466A US3392617A US 3392617 A US3392617 A US 3392617A US 53121466 A US53121466 A US 53121466A US 3392617 A US3392617 A US 3392617A
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US
United States
Prior art keywords
punches
row
punch
rows
backup plate
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
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English (en)
Inventor
Henn Harry Walther
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Individual
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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
Priority to US53121466 priority Critical patent/US3392617A/en
Priority to BE692866D priority patent/BE692866A/xx
Priority to NL6702835A priority patent/NL6702835A/xx
Priority to DE19671602459 priority patent/DE1602459A1/de
Priority to GB1003067A priority patent/GB1157053A/en
Application granted granted Critical
Publication of US3392617A publication Critical patent/US3392617A/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
    • B21D28/34—Perforating tools; Die holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/14—Punching tools; Punching dies
    • 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
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9428—Shear-type male tool
    • Y10T83/943—Multiple punchings
    • 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
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/944—Multiple punchings
    • 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

  • ABSTRACT OF THE DISCLOSURE This application discloses a punch assembly for perforating materials in which a series of openings are pierced at close spacing in multiple rows laterally and longitudinally and in which punches are mounted in the punch assembly to be carried by a punch press in removable rows for insertion or removal of individual punches or rows of punches without disturbing adjacent individual or rows of punches.
  • This invention relates to a punching device for perforating materials, and more particulanly to the construction of the punch assembly which is adapted for use in any piercing operation by which a series of openings are arranged in very close spacing in multiple rows, both laterally and longitudinally, that can be punched simultaneously and prevent the distortion of the material between the openings.
  • the primary object of my invention is to provide a punch assembly with punches arranged in rows laterally and longitudinally that permits the removal or insertion of any row of punches, or a single punch, without disturbing or disassembling any other rows of punches or any other punch in a particular row.
  • Another object of my invention is to provide a punch assembly with punches arranged in odd number of rows laterally and/or longitudinally, whereby the entire odd row of punches may be removed without disturbing or disassembling any other rows of punches and a single punch can be removed from the odd rows of punches without disturbing or removing other punches in the odd row.
  • a further object of my invention is to provide a combination of rows of punches and spacers for the punches whereby the means securing the spacers in the punch assembly also secure rows of punches in spaced relationship in the punch assembly and permit the removal of a punch or punches Without disturbing the position of other punches.
  • the distinctive object of my invention is to provide spacers adapted to fix the lateral spacing of the punches and clamp the punches, arranged either in single or paired rows that are slida'ble during assembly, on the means for securing the spacers and punches in fixed operative position within the punch assembly and allow selected punches to be removed or replaced from a row without disturbing the position of other punches in a row or adjacent rows.
  • FIGURE 1 is a plan view of my punch assembly having an odd row of punches in both directions.
  • FIGURE 2 is a section through the punch assembly having an odd row of punches in both directions taken on line 22 of FIGURE 1.
  • FIGURE 3 is a top plan view of a punch assembly having an even number of rows laterally and an odd row longitudinally.
  • FIGURE 4 is a section through the punch assembly taken on line 44 of FIGURE 3.
  • FIGURE 5 is a top plan view of a die assembly having odd rows of punches in both directions.
  • FIGURE 6 is a side elevation of the punch and die assemblies having odd rows in both directions with the punches down into the dies.
  • FIGURE 7 is an end elevation of the punch and die assemblies with the punches down into the dies.
  • FIGURE 8 is a top plan view of a T shaped spacer and two punches assembled together.
  • FIGURE 9 is a front elevation of the T shaped spacer and two punches assembled together.
  • FIGURE 10 is a side elevation of the T shaped spacer and one of the punches assembled together.
  • FIGURE 11 is an isometric view of a spacer for an odd row of punches with a punch assembled on the spacer.
  • FIGURE 12 is an isometric view of a keeper block for spacers and punches.
  • FIGURE 13 is an isometric view of a die steel for rectangular openings broken to indicate its use for odd or even spacing of punches.
  • FIGURE 14 is an isometric view of a T shaped spacer for a pair of punches.
  • FIGURE 15 is an isometric view of a punch.
  • FIGURE 16 is an isometric view of a die steel for openings having irregular or rounded contours broken to indicate its use for odd or even spacing of punches.
  • FIGURES 1 through 7 there is illustrated a backup plate 1 for mounting of the punch assembly and securing it to a punch press.
  • Crosswise of the backup plate there are key slots 2 in which dovetail keys 3 are removably fixed.
  • the dovetail keys are for rows of paired punches.
  • T shaped spacers 4 have slabs: 5 and extending ribs 6 and dovetail slots 7 (see FIGURE 14) for fixedly retaining them on the dovetail key 3 and also slidably retaining them on the dovetail key during assembly and disassembly of a row of punches.
  • ends 8 of the punches extend micromatically beyond 9 of the slabs 5 of the T shaped spacers which insures maximum clamping of the punches on a particular dovetail key when a keeper block 10 is placed between a row of paired punches.
  • the punches are illustrated as being rectangular in shape but it is not intended to limit my invention to this configuration. Any shape on the tip of the punch can be used.
  • the punches need not be identical in dimension or contour, even when arranged in pairs on a particular spacer.
  • the keeper blocks 10 extend across and are removably fixed between each double row of punches. Fixed in place, the keeper blocks wedge against the ends 8 of the punches thereby forcing and securing the punches in fixed crosswise position in the punch assembly on the dovetail key.
  • the dovetail keys are adapted to be drawn upward by the screws 38 securing them in the backup plate and insuring clamping of the punch between the keeper block, backup plate and dovetail key.
  • the keeper blocks may be rectangular in shape, as illustrated, or have sloping sides with matching sloping sides on the punches and spacers for greater wedging action.
  • a curved surface 13 provides a fillet for strength and clearance 14 on the punch to prevent interference to clamping of the punches on the key because of the width of the key when the punches are clamped onto a key.
  • end caps 15 spaced and fixed on the backup plate at the ends of a row of paired punches in the punch assembly between the ends of the keeper blocks 10. The construction is used when the punches are closely spaced and no room is available for screws to hold the keeper in place. When the punches are spaced further apart, the keeper blocks will be wider for fastening screws, and the ends of the keeper blocks will terminate at the end blocks.
  • Vertical sides 16 of the end caps provide a fixed length between them for a row of punches and spacers.
  • the pressure between the punches and spacers in a row between the end blocks provides a sliding fit and when the keeper blocks are removed from between rows of punches any single punch can be removed and replaced without disturbing any other punches in a row.
  • the space between each pair of punches longitudinally is fixed by the thickness of the slab in combination with the ribs of the T shaped spacers.
  • the end caps, and the keeper blocks, are held in alignment and removably fixed on the backup plate by square keys 17 secured in slots in the backup plate.
  • the key adjacent to the odd row is omitted (to be explained).
  • the side caps provide a vertical abutment for the outside rows of punches and spacers and hold them in alignment in relation to the dovetail key.
  • the screws for securing the side caps are turned to move the side cap down from the backup plate thereby releasing the pressure between the side cap and the bevel on the punch from the respective dovetail key and space combination.
  • the side cap is loosened from the backup plate anyone of the punches in the outside row can be removed without disturbing any other punch in the row.
  • the removal of a punch is accomplished by tipping the punch and sliding it out from between the spacers and away from the dovetail key.
  • the side caps and end caps are secured to the backup plate by appropriate screws and together they form an absolute internal measured frame around the outer edges of the T shaped spacers and punches to hold them fixed in proper location and insure positive location of pierced openings in the materials being punched.
  • FIGURES 1, 2 and 11 there is a half dovetail key 20 that is removably secured in a slot in the backup plate.
  • This key is for a single or odd row of punches.
  • the spacer has a bevel 22 corresponding to the bevel on the punch and dovetail key and a clearance pocket 23.
  • a recessed portion 24 is provided and corresponds to the width and depth of the punch.
  • the die consists of a backup plate 28 with internal opening 29 through which slugs are discharged after punching.
  • Conventional die steel members 30 are machined to suit the contour of the punches, which in this case is rectangular in form, as shown in FIGURE 13, wherein a transverse body portion 31 has spaced ribs 32. They are fixed to the backup plate with their respective cavities aligned with the punches. The transverse body portion of adjacent steels are placed against the ribs of another steel to form and complete rectangular cutting edges aligned with the punches.
  • die steel members 33 are arranged with ribs 37 on both sides of a transverse body portion 34 and cavities 35 machined to conform with the contour of the punches. The ribs of these die steels are butted together to form the complete die cavity and cutting edges.
  • Assembly of the punches is accomplished by securing the square keys 14 and 16 in the backup plate. End and side caps are secured on the backup plate a distance apart. The paired punches, with their spacers, are then slid on the dovetail keys which are movably secured in the backup plate until a particular row of punches has the required number of punches. After forming adjacent rows of paired punches, a keeper block is inserted between them which forces the punches and spacers into wedged position on the dovetail keys. Additional wedging is obtained by drawing the dovetail keys upward with the screws that hold the dovetail key in fixed position in the backup plate.
  • the keeper block between the rows is removed from between them which releases the wedging action on the punches.
  • the punches can then be rotated away from the dovetail key and easily removed without disturbing any other punches.
  • An outside or odd row of punches are formed by assembling a single punch in the recess of the spacer.
  • the punch and spacer are positioned on the half dovetail key.
  • a keeper block is secured on the backup plate on adjacent and odd row of punches. The keeper block forces the punches, along with its spacers, onto the half dovetail key and secures them in operable position in the punch assembly. When the keeper block is removed, any punch in the odd row can be removed without disturbing any other punches in the odd row of punches or any other rows of punches in the assembly.
  • a multiple punch assembly for stamping a series of laterally and longitudinally spaced rows of holes simultaneously and in which punches are mounted in the punch assembly in removable rows for insertion and removal of individual and rows of punches without disturbing adjacent punches comprising,
  • a punch holder for said punch assembly, said punch holder adapted to be mounted in a punch press,
  • dovetail keys means spaced, disposed and secured on the under surface of the backup plate and adapted tol be adjusted up and down in relation to the backup p ate,
  • each of said punches adapted to be individually removed from any one of said dovetail keys without disturbing matching or adjacent punches,
  • spacers having ribs to space a pair of said punches laterally aside said ribs along said dovetail keys and other pairs of punches adjacent and longitudinal of I said keys spaced longitudinally by said spacers, said and removable end capsadjacent. to the ends of said single punches without disturbing any other punches 5 ally and longitudinally spaced rows of holes, as set forth in claim 1,
  • a multiple punch assembly for stamping a series of and said dovetail keys adjustably secured between said laterally and longitudinally spaced rows of holes, as set spaced punches adapted to amplify the wedging beforth in claim 1, tween said backup plate and said keeper block.
  • a keeper block interposed longitudinally between each .a removable keeper block secured between a row of linear opposite row of paired punches removably sepaired punches and said odd row of punches to secured to said backup plate to retain said punches on cure said odd row of punches on one of said dovesaid dovetail keys in linear spaced relationship, tail keys and backup plate, said keeper block proand side caps in combination with said keeper blocks viding means for removably securing said row of sinto secure said punches on said dovetail keys in a fixed gle punches adjacent to said row of paired punches position and providing a means for separately reand said single punches adapted to be removed indimoving a row of punches from said multiple punch vidually from said row of single punches without assembly, disturbing any other punches in said row of single 3.
  • removable keeper blocks interposed between each row and a row of single punches and spacers spaced from of paired punches adapted to be removed from be and adjacent to a row of paired punches providing an tween opposite rows of punches and platine spacers odd row of punches, to hold said punches in fixed position on said dovea removable keeper block secured between a row of tail keys and backup plate providing a means for paired punches and said odd row of punches to seremoving punches from said punch assembly after cure said odd row of punches on one of said doveremoval of said keeper block.
  • tail keys and backup plate, said keeper block pro- 4.
  • a multiple perforator for stamping a series of laterviding means for removably securing said row of sinally and longitudinally spaced rows of holes, as set forth gle punches adjacent said pair of punches and said i l i 1, punches adapted to be removed individually from said and a row of single punches and spacers spaced from row of single punches without disturbing any other and adjacent to a row of paired punches providing an punches in said row of single punches or any other punches in any row of said punches,
  • said half dovetail adjustably secured to said single row odd rows of punches, a removable keeper block secured between a row of a paired punches and said odd rows of punches to secure said odd row of punches on one of said dovesaid odd row of punches on one of said dovetail keys and backup plate, said keeper block providing means for removably securing said row of single punches adjacent said pair of punches and said punches adapted to be removed individually from said row of tail keys and backup plate, said keeper block provid- 30 of punches and spacers adapted to amplify the wedging a means for removably Securing Said single row ing between said 'backup plate and said keeper bar, 0f Punches adjacent Said row of Paired punchesand said end cap for even rows of paired punches re- 5.
  • removable keeper block secured between a row of 9 A 1 f f f 1 paired punches and said odd row of punches to secure mu up e per orator Stamping a Saws 0 ate? ally and longitudinally spaced row of holes, as set forth in claim 1,
  • keeper blocks removably secured between said paired punches and rows of single punches on the sides of said perforator adapted to fixedly secure said single punches and spacers in said perforator on said half dovetail keys and permit the removal of a particular single punch from said rows of single punches without disturbing any other punch in said single rows or paired punches in other rows of punches.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Food-Manufacturing Devices (AREA)
US53121466 1966-03-02 1966-03-02 Punch assembly for perforating materials Expired - Lifetime US3392617A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US53121466 US3392617A (en) 1966-03-02 1966-03-02 Punch assembly for perforating materials
BE692866D BE692866A (pt) 1966-03-02 1967-01-19
NL6702835A NL6702835A (pt) 1966-03-02 1967-02-23
DE19671602459 DE1602459A1 (de) 1966-03-02 1967-03-01 Vielfach-Stanzwerkzeug
GB1003067A GB1157053A (en) 1966-03-02 1967-03-02 Punch Assembly for Perforating Materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53121466 US3392617A (en) 1966-03-02 1966-03-02 Punch assembly for perforating materials

Publications (1)

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US3392617A true US3392617A (en) 1968-07-16

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US53121466 Expired - Lifetime US3392617A (en) 1966-03-02 1966-03-02 Punch assembly for perforating materials

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US (1) US3392617A (pt)
BE (1) BE692866A (pt)
DE (1) DE1602459A1 (pt)
GB (1) GB1157053A (pt)
NL (1) NL6702835A (pt)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690209A (en) * 1969-09-25 1972-09-12 Robert J Gargrave Die-assembly
FR2636256A1 (fr) * 1988-09-13 1990-03-16 Pignon Guy Dispositif pour fixer des elements d'outils de presse dans leur support
US4995289A (en) * 1989-07-07 1991-02-26 Amp Incorporated Die assembly having improved insert retaining system and having reversible die inserts
US5291814A (en) * 1991-12-30 1994-03-08 Fierkens Richard H J Lead frame cutting apparatus for integrated circuit packages
US5337642A (en) * 1990-04-02 1994-08-16 Eastman Kodak Company Punch block support arm and process for mounting punches on such a block
WO2001003860A2 (en) * 1999-07-12 2001-01-18 Janek Francis Richard Jr Wedge-lockable removable punch and die bushing in retainer
US6408728B1 (en) * 1998-09-25 2002-06-25 Ngk Insulators, Ltd. Punching apparatus for stamping and method for producing the same
CN111715771A (zh) * 2020-07-17 2020-09-29 无锡雄伟精工科技有限公司 一种车辆头枕加工用模具的冲孔装置
CN113399544A (zh) * 2021-07-12 2021-09-17 张文龙 一种汽车零件冲孔装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941311A (zh) * 2018-08-27 2018-12-07 马林浩 一种适用于多种长度的铝单板加强筋开孔机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US345190A (en) * 1886-07-06 Edwin b
US1835424A (en) * 1930-06-07 1931-12-08 Tabulating Machine Co Punch die
US3077135A (en) * 1960-02-29 1963-02-12 Henn Harry Walther Close center slot perforating device
US3100411A (en) * 1959-04-22 1963-08-13 Carrick Prec Tools Ltd Press tools
US3183757A (en) * 1961-03-13 1965-05-18 Sorensen Villy Frank Card punching dies
US3188001A (en) * 1963-10-30 1965-06-08 Business Res And Engineering C Die construction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US345190A (en) * 1886-07-06 Edwin b
US1835424A (en) * 1930-06-07 1931-12-08 Tabulating Machine Co Punch die
US3100411A (en) * 1959-04-22 1963-08-13 Carrick Prec Tools Ltd Press tools
US3077135A (en) * 1960-02-29 1963-02-12 Henn Harry Walther Close center slot perforating device
US3183757A (en) * 1961-03-13 1965-05-18 Sorensen Villy Frank Card punching dies
US3188001A (en) * 1963-10-30 1965-06-08 Business Res And Engineering C Die construction

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690209A (en) * 1969-09-25 1972-09-12 Robert J Gargrave Die-assembly
FR2636256A1 (fr) * 1988-09-13 1990-03-16 Pignon Guy Dispositif pour fixer des elements d'outils de presse dans leur support
EP0446536A1 (fr) * 1988-09-13 1991-09-18 Guy Pignon Dispositif pour fixer des eléménts d'outils de presse dans leur support
US4995289A (en) * 1989-07-07 1991-02-26 Amp Incorporated Die assembly having improved insert retaining system and having reversible die inserts
US5337642A (en) * 1990-04-02 1994-08-16 Eastman Kodak Company Punch block support arm and process for mounting punches on such a block
US5291814A (en) * 1991-12-30 1994-03-08 Fierkens Richard H J Lead frame cutting apparatus for integrated circuit packages
US6408728B1 (en) * 1998-09-25 2002-06-25 Ngk Insulators, Ltd. Punching apparatus for stamping and method for producing the same
WO2001003860A2 (en) * 1999-07-12 2001-01-18 Janek Francis Richard Jr Wedge-lockable removable punch and die bushing in retainer
WO2001003860A3 (en) * 1999-07-12 2001-05-25 Francis Richard Janek Jr Wedge-lockable removable punch and die bushing in retainer
CN111715771A (zh) * 2020-07-17 2020-09-29 无锡雄伟精工科技有限公司 一种车辆头枕加工用模具的冲孔装置
CN113399544A (zh) * 2021-07-12 2021-09-17 张文龙 一种汽车零件冲孔装置

Also Published As

Publication number Publication date
NL6702835A (pt) 1967-09-04
BE692866A (pt) 1967-07-03
GB1157053A (en) 1969-07-02
DE1602459A1 (de) 1969-10-30

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