US20110283852A1 - Sheet metal punching apparatus and method thereof - Google Patents

Sheet metal punching apparatus and method thereof Download PDF

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Publication number
US20110283852A1
US20110283852A1 US13/145,175 US200913145175A US2011283852A1 US 20110283852 A1 US20110283852 A1 US 20110283852A1 US 200913145175 A US200913145175 A US 200913145175A US 2011283852 A1 US2011283852 A1 US 2011283852A1
Authority
US
United States
Prior art keywords
hole
sheet metal
die
punch
configuration
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.)
Abandoned
Application number
US13/145,175
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English (en)
Inventor
Masatoshi Oishi
Teruo ARAMIZU
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.)
Oiles Corp
Ones Co Ltd
Original Assignee
Oiles Corp
Ones Co Ltd
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 Oiles Corp, Ones Co Ltd filed Critical Oiles Corp
Assigned to OILES CORPORATION, ONES CO., LTD. reassignment OILES CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARAMIZU, TERUO, OISHI, MASATOSHI
Publication of US20110283852A1 publication Critical patent/US20110283852A1/en
Abandoned 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
    • B21D28/26—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
    • 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
    • Y10T83/04—Processes
    • Y10T83/0586—Effecting diverse or sequential cuts in same cutting step
    • 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
    • Y10T83/9418—Punching plus nonpunching tool

Definitions

  • the present invention relates to a sheet metal punching apparatus and a method thereof.
  • An apparatus for punching a hole in a sheet metal is arranged such that a punch having an outside diameter smaller than the diameter of a through hole of a die is pressed against a sheet metal, and the punch is further inserted into the through hole of the die to cause a shear to occur in the sheet metal through cooperation between the punch and die, thereby forming in the sheet metal a through hole of a configuration conforming to the configuration of the through hole of the die.
  • a punch whose outer configuration has a circular shape similar thereto is commercially available as a standard item and is easily obtainable.
  • Such a punch inevitably becomes expensive, and there is a problem in that a punching processor must constantly keep expensive punches of the special configuration prepared as reserves.
  • the present invention has been devised in view of the above-described aspects, and its object is to provide a sheet metal punching apparatus and a method thereof which make it possible to effect punching of a through hole of a special configuration other than the circular shape without using a punch whose outer configuration is similar thereto, thereby making it possible to attain a reduction in the punching cost.
  • a sheet metal punching apparatus in accordance with the present invention comprises: a die having a through hole of a configuration conforming to a configuration of a through hole to be formed in a sheet metal; and a punch means including a punch body means having an outer configuration dissimilar to a configuration of an outer edge of the through hole of the die and adapted to form a through hole in the sheet metal in cooperation with the die and a pierced hole forming means which is integrally provided on one end face of the punch body means facing the through hole of the die and is adapted to form a pierced hole in the sheet metal, wherein the pierced hole is formed in the sheet metal by the pierced hole forming means, and in a state in which the movement of the sheet metal is restricted by the pierced hole forming means inserted in the pierced hole, the punch body means is inserted into the through hole of the die, whereby the sheet metal is subjected to tensile fracture at the outer edge of the through hole of the die through cooperation between the die and
  • the pierced hole is formed in the sheet metal by the pierced hole forming means, and in the state in which the movement of the sheet metal is restricted by the pierced hole forming means inserted in the pierced hole, the punch body means having an outer configuration dissimilar to the configuration of the outer edge of the through hole of the die is inserted into the through hole of the die.
  • the sheet metal is subjected to tensile fracture at the outer edge of the through hole of the die through cooperation between the die and the punch body means, to thereby form the through hole in the sheet metal. Therefore, it is possible to effect punching by using the punch whose outer configuration is circular or quadrangular in shape without using a punch whose outer configuration is similar to that of the through hole to be punched, thereby making it possible to attain a reduction in the punching cost.
  • the punch body means may have at least one punch body having an outer configuration dissimilar to the configuration of the outer edge of the through hole of the die.
  • the pierced hole forming means may have a conical or pyramidal projection provided integrally on the one end face of the at least one punch body facing the through hole of the die.
  • the through hole of the die may have a polygonal shape including a triangular shape, an elliptical shape, an oval shape, or a closed curve shape.
  • the punch body means may have at least one punch body having an outer configuration of a circular or quadrangular shape.
  • a method of forming a through hole in a sheet metal by the sheet metal punching apparatus is characterized by comprising the steps of: forming the pierced hole in the sheet metal by the pierced hole forming means; inserting the punch body means into the through hole of the die in a state in which the movement of the sheet metal is restricted by the pierced hole forming means inserted in the pierced hole; subjecting the sheet metal to tensile fracture at the outer edge of the through hole of the die through cooperation between the die and the punch body means, to thereby form the through hole in the sheet metal.
  • the present invention it is possible to provide a sheet metal punching apparatus and a method thereof which make it possible to effect punching of a through hole of a special configuration other than the circular shape without using a punch whose outer configuration is similar thereto, thereby making it possible to attain a reduction in the punching cost.
  • FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention
  • FIG. 2 is an explanatory enlarged side view of punch bodies and projections used in the embodiment shown in FIG. 1 ;
  • FIG. 3 is an explanatory front elevational view of a proximal portion, the punch bodies, and the projections used in the embodiment shown in FIG. 1 ;
  • FIG. 4 is an explanatory diagram of the punch bodies, the projections, and the die used in the embodiment shown in FIG. 1 ;
  • FIG. 5 is a diagram explaining the operation of the embodiment shown in FIG. 1 ;
  • FIG. 6 is a diagram explaining the operation of the embodiment shown in FIG. 1 ;
  • FIG. 7 is an explanatory partial cross-sectional view of another preferred embodiment of the present invention.
  • FIG. 8 is an explanatory partial cross-sectional view of still another preferred embodiment of the present invention.
  • FIG. 9 is an explanatory partial cross-sectional view of a further preferred embodiment of the present invention.
  • FIG. 10 is an explanatory partial cross-sectional view of a still further preferred embodiment of the present invention.
  • FIG. 11 is an explanatory partial cross-sectional view of a further preferred embodiment of the present invention.
  • a sheet metal punching apparatus 1 in accordance with this embodiment includes an upper die holder 2 which is raised and lowered by a hydraulic ram and the like; a pressing plate 3 secured to the upper die holder 2 ; a pressing pad 5 suspended from the upper die holder 2 through a resilient member 4 ; a punch holder 7 secured to the pressing pad 5 by means of a bolt 6 and the like and constructed as a punch unit; a lower die 9 on which a sheet metal 8 to be subjected to punching is placed; and a die 11 embedded in the lower die 9 and having a though hole 10 of an oval shape conforming to the shape of a through hole to be punched in the sheet metal 8 , i.e., an oval shape in this embodiment.
  • the punch holder 7 includes a hollow cylindrical case 12 secured to the pressing pad 5 by means of the bolt 6 and the like; a hollow cylindrical slider 13 fitted to the case 12 vertically slidably; a punch means 14 fitted in the slider 13 vertically slidably; a returning means 16 disposed in the slider 13 and having the punch means 14 and a coil spring 15 for returning the punch means 14 and the slider 13 to their initial positions by upwardly resiliently urging the slider 13 by means of the punch means 14 ; and a slide guiding member 17 provided in the case 12 so as to guide the vertical movement of the punch means 14 .
  • the die 11 has, in addition to the through hole 10 , an oval through hole 19 which is continuous with the through hole 10 , has a shape similar to but greater in size than the through hole 10 , and is adapted to discharge punch waste 18 (see FIG. 6 ).
  • the slider 13 has a recess 21 on its circumferential surface, and is adapted to engage at the recess 21 a detent pin 22 secured to the case 12 , so that the slider 13 does not come off the case 12 by the resiliency of the coil spring 15 .
  • the slider 13 is adapted to be pressed downward by the pressing plate 3 when the upper die holder 2 is lowered.
  • the punch means 14 for punching the sheet metal 8 includes a columnar proximal portion 25 ; a punch body means 28 which is provided on a circular lower end surface 26 of the proximal portion 25 , has an outer configuration dissimilar to the configuration of an outer edge 27 of the oval through hole 10 of the die 11 , and is adapted to form a through hole in the sheet metal 8 in cooperation with the die 11 ; a pierced hole forming means 31 which is integrally provided on one end face 29 of the punch body means 28 facing the through hole 10 of the die 11 and is adapted to form a pierced hole 30 (see FIG. 5 ) in the sheet metal 8 in cooperation with the die 11 ; and a collar portion 33 which is integrally provided on a circular upper end surface 32 of the proximal portion 25 .
  • the punch body means 28 has at least one, in this embodiment three, columnar punch bodies 41 each of which has a circular outer configuration dissimilar to the configuration of the outer edge 27 of the oval through hole 10 of the die 11 , and is inserted into the through hole 10 .
  • Each of the punch bodies 41 which are formed in the same configuration each other is secured at its upper end to the circular lower end surface 26 of the proximal portion 25 integrally or preferably detachably by means of bolts or fitting in order to be replaceable.
  • each of the three punch bodies 41 is formed with an outside diameter which causes a minimal clearance 42 of not less than 0.15 t and not more than 2 mm to be created with respect to the outer edge 27 of the through hole 10 of the die 11 .
  • the three punch bodies 41 are arranged in a row in the longitudinal direction of the through hole 10 , and a clearance 40 of such a measure that a tensile fracture along the outer edge 27 at the time of punching occurs in the sheet metal 8 is also provided between adjacent ones of the punch bodies 41 .
  • the pierced hole forming means 31 has a conical or pyramidal (in this embodiment, conical) projection 43 provided integrally on the one circular end face 29 of each punch body 41 facing the through hole 10 of the die 11 , and is adapted to form the pierced hole 30 in the sheet metal 8 by the projection 43 in cooperation with the die 11 .
  • the coil spring 15 abuts against the collar portion 33 at one end thereof and a flange portion 45 of the slide guiding member 17 at the other end thereof.
  • the slide guiding member 17 has, in addition to the flange portion 45 , a cylindrical portion 47 formed integrally with the flange portion 45 and fitted in the case 12 in each hole 46 of the case 12 , and slidably guides and supports at the inner peripheral surface of each cylindrical portion 47 each punch body 41 of the punch body means 28 inserted in each cylindrical portion 47 .
  • the sheet metal 8 placed on the lower die 9 is pressed by the pressing pad 5 and is fixed by being clamped between the lower die 9 and the pressing pad 5 .
  • the slider 13 is pressed by the pressing plate 3 , and the punch means 14 is lowered in conjunction with the lowering of the slider 13 .
  • the punch means 14 is lowered, the pierced holes 30 are formed in the sheet metal 8 by the projections 43 of the pierced hole forming means 31 , as shown in FIG. 5 .
  • the punch means 14 is lowered, and the punch bodies 41 of the punch body means 28 are inserted into the through hole 10 of the die 11 .
  • the sheet metal 8 is subjected to tensile fracture at the outer edge 27 of the through hole 10 of the die 11 through cooperation between the die 11 and the punch bodies 41 of the punch body means 28 as shown in FIG. 6 , to thereby form an oval through hole 48 in the sheet metal 8 .
  • the pierced holes 30 are formed in the sheet metal 8 by the pierced hole forming means 31 , and in the state in which the movement of the sheet metal 8 is restricted by the pierced hole forming means 31 inserted in the pierced holes 30 , the punch body means 28 having a circular outer configuration dissimilar to the configuration of the outer edge 27 of the oval through hole 10 of the die 11 is inserted into the through hole 10 of the die 11 .
  • the sheet metal 8 is subjected to tensile fracture at the outer edge 27 of the through hole 10 of the die 11 through cooperation between the die 11 and the punch body means 28 , to thereby form in the sheet metal 8 the through hole 48 of the configuration conforming to the through hole 10 . Therefore, it is possible to effect punching by using the punch bodies 41 whose outer configuration is circular in shape without using a punch whose outer configuration is similar to that of the through hole 48 to be punched, thereby making it possible to attain a reduction in the punching cost.
  • the through hole 48 is formed by vertically moving the punch means 14 , but the through hole 48 may be formed in an inclined portion of the sheet metal 8 by obliquely moving the punch means 14 .
  • the above-described punching apparatus 1 is an example in which the punch body means 28 having three punch bodies 41 with a circular outer configuration dissimilar to the configuration of the outer edge 27 of the oval-shaped through hole 10 of the die 11 is used in order to form in the sheet metal 8 the through hole 48 conforming to the configuration of the outer edge 27 of the oval through hole 10 of the die 11 .
  • the punch body means 28 having three punch bodies 41 with a circular outer configuration dissimilar to the configuration of the outer edge 27 of the oval-shaped through hole 10 of the die 11 is used in order to form in the sheet metal 8 the through hole 48 conforming to the configuration of the outer edge 27 of the oval through hole 10 of the die 11 .
  • the punch body means 28 having one punch body 41 with a circular outer configuration dissimilar to the configuration of the outer edge 27 of the substantially octagonal through hole 10 of the die 11 , as well as the pierced hole forming means 31 having the conical projection 43 provided integrally on the one end face 29 of one punch body 41 facing the through hole 10 of the die 11 . Still alternatively, as shown in FIG.
  • the through hole 48 conforming to the configuration of the outer edge 27 of the through hole 10 of the die 11 , the through hole 10 having a configuration in which an elliptical shape and a quadrangular shape continuous to the elliptical shape are combined, it is possible to use the punch body means 28 having two punch bodies 41 respectively provided with large and small circular outer configurations dissimilar to the configuration of the outer edge 27 of the through hole 10 of the die 11 , as well as the pierced hole forming means 31 having the conical projection 43 provided integrally on the one end face 29 of each punch body 41 facing the through hole 10 of the die 11 . Still more alternatively, as shown in FIG.
  • the punch body means 28 having one punch body 41 with a circular outer configuration dissimilar to the configuration of the outer edge 27 of the through hole 10 of the die 11 , as well as the pierced hole forming means 31 having the conical projection 43 provided integrally on the one end face 29 of the punch body 41 facing the through hole 10 of the die 11 . Still more alternatively, as shown in FIG.
  • the punch body means 28 having one punch body 41 with a quadrangular outer configuration dissimilar to the configuration of the outer edge 27 of the through hole 10 of the die 11 , as well as the pierced hole forming means 31 having the conical projection 43 provided integrally on the one end face 29 of the punch body 41 facing the through hole 10 of the die 11 .
  • the through hole 48 is formed in the sheet metal 8 by subjecting the sheet metal 8 to tensile fracture over the entire region of the outer edge 27 of the through hole 10 of the die 11 .
  • the through hole 48 conforming to the configuration of the outer edge 27 of the through hole 10 by shearing in regions 51 and by tensile fracture in regions 52 excluding the regions 51 at the outer edge 27 of the through hole 10 of the die 11 , the through hole 10 having the configuration of a closed curve, it is possible to use the punch body means 28 having one punch body 41 with outer configuration partially similar to, and outer configurations partially dissimilar to, the configuration of the outer edge 27 of the through hole 10 of the die 11 , as well as the pierced hole forming means 31 having the conical projection 43 provided integrally on the one end face 29 of the punch body 41 facing the through hole 10 of the die 11 .
  • the conical projection 43 is used, it is alternatively possible to use a projection 43 of a polygonal pyramid shape including a triangular pyramid shape, or a projection 43 in which a cylindrical body or a prismatic body is disposed on the proximal portion 25 side while a conical body or a pyramidal body is disposed on the distal end side, and the cylindrical body or the prismatic body is formed integrally with the conical body or the pyramidal body.
  • the thickness of the sheet metal is assumed to be t, it suffices if the clearance 42 between the punch body and the outer edge of the through hole of the die is between 0.1 t to 20 t.
  • the die 11 itself may be used as the lower die without using the lower die 9 in which the die 11 is embedded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US13/145,175 2009-01-22 2009-01-22 Sheet metal punching apparatus and method thereof Abandoned US20110283852A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/000244 WO2010084527A1 (ja) 2009-01-22 2009-01-22 薄板金属の孔開け装置及びその方法

Publications (1)

Publication Number Publication Date
US20110283852A1 true US20110283852A1 (en) 2011-11-24

Family

ID=42355607

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/145,175 Abandoned US20110283852A1 (en) 2009-01-22 2009-01-22 Sheet metal punching apparatus and method thereof

Country Status (5)

Country Link
US (1) US20110283852A1 (ko)
JP (1) JP5459230B2 (ko)
KR (1) KR101295337B1 (ko)
CN (1) CN102281962B (ko)
WO (1) WO2010084527A1 (ko)

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US904714A (en) * 1906-03-30 1908-11-24 Thomas Mcgrath Punching-tool.
US1070889A (en) * 1912-07-03 1913-08-19 Stephen D Hartog Process of making punches and dies.
US1569136A (en) * 1925-03-27 1926-01-12 Anthracite Separator Co Tool holder
US3269240A (en) * 1965-03-29 1966-08-30 John S Killaly Quadrant punch for turret punch presses and the like
US3465634A (en) * 1967-02-20 1969-09-09 Schjeldahl Co G T Punch
US3933071A (en) * 1975-03-27 1976-01-20 Onondaga Tool Corporation Shearproof punch
US4123956A (en) * 1977-09-12 1978-11-07 Arco Industries Corporation Self-adjusting punch device
US4166403A (en) * 1977-08-10 1979-09-04 Houdaille Industries, Inc. Method of making a rigidly supported molded plastics material punch guide and stripper
US4362078A (en) * 1980-03-25 1982-12-07 Akzona Incorporated Method of blanking
US4685613A (en) * 1986-09-16 1987-08-11 Frank Schambre Reciprocable tool mounting module
US4836071A (en) * 1987-02-06 1989-06-06 W. C. Heraeus Gmbh Modular punch apparatus for punching complex shapes from a metal ribbon or tape
DE3925733A1 (de) * 1988-08-05 1990-02-08 Vaillant Joh Gmbh & Co Verfahren zur herstellung einer oeffnung in einem blech sowie stanzwerkzeug zur durchfuehrung dieses verfahrens
US4947718A (en) * 1987-09-01 1990-08-14 S. B. Whistler & Sons, Inc. Punch and die system
US4970923A (en) * 1982-04-12 1990-11-20 Gruber Siegfried F Shaping die
US4998958A (en) * 1989-05-22 1991-03-12 Murata Wiedemann, Inc. Multitool punch holder
US5054347A (en) * 1988-08-19 1991-10-08 Mate Punch & Die Co. Punch assembly with improved disassembly features
US5144872A (en) * 1988-10-28 1992-09-08 Ushio Co., Ltd. Multiple punching press
US5848563A (en) * 1992-07-21 1998-12-15 Amada Metrecs Company Limited Multiple tool for punch press
US5992280A (en) * 1992-12-07 1999-11-30 Fuji Photo Film Co., Ltd. Perforator for metal plate
US20010039867A1 (en) * 2000-05-11 2001-11-15 Giorgio Ostini Quick-extraction punch-holder adaptor for converting punching machines from a single-punch to a multiple-punch configuration
US20020129677A1 (en) * 1998-09-25 2002-09-19 Ngk Insulators, Ltd. Punching apparatus for stamping and method for producing the same
US20020139233A1 (en) * 2001-03-30 2002-10-03 Uht Corporation Multiaxis punch device
US6598505B2 (en) * 1998-02-18 2003-07-29 International Business Machines Corporation Punch actuator monitoring system and method
WO2004096464A1 (ja) * 2003-04-30 2004-11-11 Ones Co., Ltd. 薄板金属の孔明け用のパンチ及びこのパンチを具備した薄板金属の孔明け装置
US20050247181A1 (en) * 2002-06-07 2005-11-10 Amada Company Limited Slug float-up preventing mechanism
US7032812B2 (en) * 2000-05-11 2006-04-25 Euromac S.P.A. Quick-extraction punch-holder adapter for converting punching machines from a single-punch to a multiple-punch configuration
US20060196329A1 (en) * 2004-09-02 2006-09-07 Klimczak Joerg I Method and die for punching or forming

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JPH0395123U (ko) * 1990-01-08 1991-09-27
JP2956389B2 (ja) * 1992-10-13 1999-10-04 トヨタ自動車株式会社 異形穴抜き方法および装置
JP4556326B2 (ja) * 2000-11-19 2010-10-06 株式会社ワンズ 薄板金属のプレス穴あけ方法及びプレス金型
JP2002321023A (ja) * 2001-04-26 2002-11-05 Amada Co Ltd パンチ金型
JP4775782B2 (ja) * 2004-03-17 2011-09-21 株式会社ワンズ 孔明け装置
JP5141093B2 (ja) * 2007-05-22 2013-02-13 株式会社ワンズ 薄板金属孔明け用のダイス及びこのダイスを具備した薄板金属用孔明け装置

Patent Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US904714A (en) * 1906-03-30 1908-11-24 Thomas Mcgrath Punching-tool.
US1070889A (en) * 1912-07-03 1913-08-19 Stephen D Hartog Process of making punches and dies.
US1569136A (en) * 1925-03-27 1926-01-12 Anthracite Separator Co Tool holder
US3269240A (en) * 1965-03-29 1966-08-30 John S Killaly Quadrant punch for turret punch presses and the like
US3465634A (en) * 1967-02-20 1969-09-09 Schjeldahl Co G T Punch
US3933071A (en) * 1975-03-27 1976-01-20 Onondaga Tool Corporation Shearproof punch
US4166403A (en) * 1977-08-10 1979-09-04 Houdaille Industries, Inc. Method of making a rigidly supported molded plastics material punch guide and stripper
US4123956A (en) * 1977-09-12 1978-11-07 Arco Industries Corporation Self-adjusting punch device
US4362078A (en) * 1980-03-25 1982-12-07 Akzona Incorporated Method of blanking
US4970923A (en) * 1982-04-12 1990-11-20 Gruber Siegfried F Shaping die
US4685613A (en) * 1986-09-16 1987-08-11 Frank Schambre Reciprocable tool mounting module
US4836071A (en) * 1987-02-06 1989-06-06 W. C. Heraeus Gmbh Modular punch apparatus for punching complex shapes from a metal ribbon or tape
US4947718A (en) * 1987-09-01 1990-08-14 S. B. Whistler & Sons, Inc. Punch and die system
DE3925733A1 (de) * 1988-08-05 1990-02-08 Vaillant Joh Gmbh & Co Verfahren zur herstellung einer oeffnung in einem blech sowie stanzwerkzeug zur durchfuehrung dieses verfahrens
US5054347A (en) * 1988-08-19 1991-10-08 Mate Punch & Die Co. Punch assembly with improved disassembly features
US5144872A (en) * 1988-10-28 1992-09-08 Ushio Co., Ltd. Multiple punching press
US4998958A (en) * 1989-05-22 1991-03-12 Murata Wiedemann, Inc. Multitool punch holder
US5848563A (en) * 1992-07-21 1998-12-15 Amada Metrecs Company Limited Multiple tool for punch press
US5992280A (en) * 1992-12-07 1999-11-30 Fuji Photo Film Co., Ltd. Perforator for metal plate
US6598505B2 (en) * 1998-02-18 2003-07-29 International Business Machines Corporation Punch actuator monitoring system and method
US20020129677A1 (en) * 1998-09-25 2002-09-19 Ngk Insulators, Ltd. Punching apparatus for stamping and method for producing the same
US20010039867A1 (en) * 2000-05-11 2001-11-15 Giorgio Ostini Quick-extraction punch-holder adaptor for converting punching machines from a single-punch to a multiple-punch configuration
US7032812B2 (en) * 2000-05-11 2006-04-25 Euromac S.P.A. Quick-extraction punch-holder adapter for converting punching machines from a single-punch to a multiple-punch configuration
US20020139233A1 (en) * 2001-03-30 2002-10-03 Uht Corporation Multiaxis punch device
US20050247181A1 (en) * 2002-06-07 2005-11-10 Amada Company Limited Slug float-up preventing mechanism
WO2004096464A1 (ja) * 2003-04-30 2004-11-11 Ones Co., Ltd. 薄板金属の孔明け用のパンチ及びこのパンチを具備した薄板金属の孔明け装置
EP1621268A1 (en) * 2003-04-30 2006-02-01 Oiles Corporation Punch for thin-plate metal and punch device for thin-plate metal with the punch
US20060196329A1 (en) * 2004-09-02 2006-09-07 Klimczak Joerg I Method and die for punching or forming

Also Published As

Publication number Publication date
JPWO2010084527A1 (ja) 2012-07-12
KR20110110202A (ko) 2011-10-06
CN102281962A (zh) 2011-12-14
JP5459230B2 (ja) 2014-04-02
KR101295337B1 (ko) 2013-08-12
WO2010084527A1 (ja) 2010-07-29
CN102281962B (zh) 2014-07-30

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