WO2012157260A1 - Unité de poinçon pour le découpage à l'emporte-pièce d'une tôle mince, et appareil de découpage à l'emporte-pièce la comportant - Google Patents

Unité de poinçon pour le découpage à l'emporte-pièce d'une tôle mince, et appareil de découpage à l'emporte-pièce la comportant Download PDF

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Publication number
WO2012157260A1
WO2012157260A1 PCT/JP2012/003178 JP2012003178W WO2012157260A1 WO 2012157260 A1 WO2012157260 A1 WO 2012157260A1 JP 2012003178 W JP2012003178 W JP 2012003178W WO 2012157260 A1 WO2012157260 A1 WO 2012157260A1
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WO
WIPO (PCT)
Prior art keywords
punch
diameter
case
peripheral surface
small
Prior art date
Application number
PCT/JP2012/003178
Other languages
English (en)
Japanese (ja)
Inventor
政利 大石
純一 店橋
秀樹 桐明
桂太 高田
Original Assignee
株式会社ワンズ
オイレス工業株式会社
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 株式会社ワンズ, オイレス工業株式会社 filed Critical 株式会社ワンズ
Priority to CN201280023641.8A priority Critical patent/CN103747892B/zh
Publication of WO2012157260A1 publication Critical patent/WO2012157260A1/fr

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Classifications

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

Definitions

  • the present invention relates to a punch unit for punching a thin metal plate and a thin plate metal punching device provided with the punch unit.
  • a punch having a cylindrical punch body having an outer diameter smaller than the hole diameter of the die and a conical protrusion integrally formed on one end face of the punch body is pressed against a thin metal plate, and the thin plate is formed by the protrusion of the punch.
  • a punch is made by drilling a piercing hole in advance of the metal, and further inserting the punch body into the die hole from one end of the die hole in a state where the movement of the sheet metal is restricted by the protrusion inserted into the piercing hole.
  • a drilling device has been proposed in which a sheet metal is broken around an annular edge of a cylindrical inner surface of a die that defines one end of a die hole in cooperation with the main body to form a through hole in the sheet metal. (See Patent Document 1).
  • a punch unit (punch holder) includes a case fixed to a pressing pad via a bolt or the like, a slider slidably mounted on the case in the vertical direction, A punch that is slidable in the vertical direction in the slider, and a coil that is arranged in the slider and elastically biases the slider upward through the punch to return the punch and the slider to the initial position.
  • the punch and coil spring are inserted into the recess of the slider because the spring and the sliding guide member provided on the case so as to guide the vertical movement of the punch are provided.
  • the slider / punch / coil spring combination is inserted into the case or the punch is inserted into the recess of the slider.
  • time-consuming complicated assembly work is required during manufacture, repair, and maintenance. .
  • the punch unit in such a punching device uses a slider in addition to the punch, the manufacturing cost and the maintenance cost are increased due to the increase in the number of parts.
  • An object of the present invention is to provide a punching unit for punching a thin metal plate and a punching device for a thin metal plate provided with the punch unit.
  • a punch unit for punching a thin metal plate according to the present invention includes a hollow case, a punch disposed in the hollow portion of the case so as to be movable in the axial direction, and disposed in the hollow portion of the case and the punch as a shaft.
  • An elastic member that elastically presses toward an initial position in the direction, and the case includes a small-diameter inner peripheral surface, a large-diameter inner peripheral surface that is larger in diameter than the small-diameter inner peripheral surface, and a small-diameter inner peripheral surface.
  • An annular stepped surface between the large-diameter inner peripheral surface, the hollow portion is defined by the small-diameter inner peripheral surface and the large-diameter inner peripheral surface, and the punch has a protrusion and the protrusion Is provided integrally with one end surface in the axial direction and has a small-diameter outer peripheral surface and a small-diameter punch portion that is movably in contact with the small-diameter inner peripheral surface of the case in the axial direction.
  • One end face in the axial direction is integrally provided on the end face, and from the small diameter punch part A large-diameter punch portion that has a large-diameter outer peripheral surface and a large-diameter inner peripheral surface that contacts the large-diameter inner peripheral surface so as to be movable in the axial direction. While projecting out of the case, the large diameter punch part projects out of the case from the other end surface in the axial direction of the case, and the protrusion can project out of the case from one end surface in the axial direction of the case.
  • the elastic member is integrally formed on one end surface in the axial direction of the small diameter punch portion, and the elastic member is in contact with the stepped surface of the case at one end and the small diameter outer peripheral surface and the large diameter outer peripheral surface of the punch at the other end. Is in contact with the annular stepped surface.
  • the small-diameter outer peripheral surface of the small-diameter punch portion of the punch is in axial contact with the small-diameter inner peripheral surface of the case, and the large-diameter punch portion has a large diameter. Since the outer peripheral surface is in contact with the large-diameter inner peripheral surface of the case in an axially movable manner, the punch is guided in the small-diameter inner peripheral surface and the large-diameter inner peripheral surface of the case to be movable in the axial direction.
  • the punch can be moved in the axial direction without interposing a slider between the punch and the case, and the punch is attached to the hollow portion of the case together with the elastic member inserted into the hollow portion of the case.
  • the punch unit can be assembled by inserting it into the socket, and can be easily assembled in a short time during manufacturing, repair, and maintenance, and the manufacturing cost and maintenance cost can be reduced.
  • the large-diameter large-diameter inner peripheral surface of the case is formed to have the same diameter from the stepped surface of the case to the other end surface in the axial direction of the case, and the large-diameter punch portion of the punch Is formed to have the same diameter from the stepped surface of the punch to the other end surface of the punch so that the punch can be extracted from the hollow portion of the case via the other end surface in the axial direction of the case.
  • the case may include a case main body having a small-diameter inner peripheral surface and a large-diameter inner peripheral surface, and an annular member fixed to the other end surface in the axial direction of the case main body and having a through-hole.
  • the large-diameter punch portion has a large-diameter outer peripheral surface having a large-diameter outer peripheral surface that is movably contacted in the axial direction with the large-diameter inner peripheral surface of the case main body, and the large-diameter punch main-body portion.
  • Each of the large-diameter outer peripheral surface and the inner peripheral surface of the annular member that defines the through hole And a large-diameter punch projecting portion projecting out of the case from the other end surface in the axial direction of the case through the through-hole of the annular member.
  • the punch may be prevented from coming off from the part by contact with the annular member of the large-diameter punch main body, and in this case, the annular member is provided on the other end surface in the axial direction of the case main body with the elastic member.
  • the elastic member and the punch case may be inserted into the hollow portion of the case instead of being fixed by screwing, fitting, screwing or the like. Then, it may be integrally fixed by welding, adhesion or the like.
  • the case includes a case main body having a small diameter inner peripheral surface and a large diameter inner peripheral surface, and a throttle portion formed at the other end in the axial direction of the case main body.
  • the diameter punch portion includes a large diameter punch body portion having a large diameter outer peripheral surface that is movably contacted in the axial direction with a large diameter inner peripheral surface of the case main body, and a large diameter outer peripheral surface and a throttle portion of the large diameter punch main body portion.
  • the outer peripheral surface is smaller than the diameter of each of the inner peripheral surfaces of the inner surface of the case, and passes through a hole defined by the inner peripheral surface of the throttle portion and protrudes out of the case from the other end surface in the axial direction of the case.
  • the punch may be provided with a diameter punch projecting portion, and the withdrawal of the punch from the hollow portion of the case may be prohibited by contact with the throttle portion of the large diameter punch main body portion.
  • the case is usually made of metal, but in order to further reduce the cost, the case may be made of a resin material having slidability such as polyacetal. If the case is made of such a resin material, the weight is reduced. Is also preferable.
  • the protrusion has a conical shape integrally provided on one end face of the small diameter punch portion on the bottom surface, the protrusion is arranged on one end face of the small diameter punch portion concentrically with the end face instead.
  • a circular bottom surface concentric with the end surface and a truncated cone portion integrally provided with a circular top surface having a smaller diameter than the circular bottom surface
  • a conical portion integrally provided on the circular top surface of the truncated cone portion.
  • the cone-shaped protrusions and cone-shaped portions may be conical or polygonal pyramid shapes such as a triangular pyramid shape and a quadrangular pyramid shape.
  • the punching unit for punching a thin metal plate according to the present invention has a punch hole in the thin metal plate by a protrusion, and the small-diameter punch portion of the punch is further formed on the die while the movement of the thin metal plate is restricted by the protrusion inserted into the through hole.
  • the sheet metal is broken around the annular edge of the cylindrical inner surface of the die that defines one end of the die hole to form a through hole in the sheet metal. It is good to use for the drilling device of the thin sheet metal which is.
  • the thin plate metal punched by the punch unit of the present invention has a thickness of about 0.4 mm to 2.0 mm in order to obtain good results, but in order to obtain better results,
  • the plate thickness is about 0.6 mm to 1.6 mm.
  • a punch unit for punching a thin metal plate that can be easily assembled in a short time during manufacture, repair, maintenance, etc., and can reduce manufacturing costs and maintenance costs, and the like. It is possible to provide a sheet metal drilling device provided with a punch unit.
  • FIG. 1 is a cross-sectional explanatory view of a preferred example of the present invention.
  • FIG. 2 is an explanatory bottom view of the example shown in FIG.
  • FIG. 3 is a partially enlarged explanatory view of the punch of the example shown in FIG.
  • FIG. 4 is a cross-sectional explanatory view of an example of a sheet metal drilling device provided with the example shown in FIG.
  • FIG. 5 is an operation explanatory diagram of the example shown in FIG.
  • FIG. 6 is an operation explanatory diagram of the example shown in FIG.
  • FIG. 7 is an operation explanatory diagram of the example shown in FIG.
  • FIG. 8 is a diagram for explaining the operation of the example shown in FIG.
  • FIG. 9 is a cross-sectional explanatory view of another preferred example of the present invention.
  • FIG. 1 is a cross-sectional explanatory view of a preferred example of the present invention.
  • FIG. 2 is an explanatory bottom view of the example shown in FIG.
  • FIG. 3
  • FIG. 10 is a cross-sectional explanatory view of still another preferred example of the present invention.
  • FIG. 11 is a partially enlarged explanatory view of another example of the preferred punch of the present invention.
  • FIG. 12 is a partially enlarged explanatory view of still another example of the preferred punch of the present invention.
  • the thin plate metal drilling device 1 of this example includes an upper mold holder 2 that is lifted and lowered by a hydraulic ram, a pressing plate 3 fixed to the upper mold holder 2, and an upper mold holder 2.
  • a pressing pad 5 suspended through an elastic member 4, a punch holder 7 as a punch unit fixed to the pressing pad 5 through a bolt 6, and a sheet metal 8 to be drilled are placed.
  • the lower die 9 and a die 10 embedded in the lower die 9 are provided.
  • the punch holder 7 includes a cylindrical hollow case 11 fixed to the pressing pad 5 with a bolt 6, and a punch 13 disposed in the hollow portion 12 of the case 11 so as to be movable in the vertical direction H that is the axial direction.
  • a coil spring disposed in the hollow portion 12 of the case 11 and elastically pressing the punch 13 toward the initial position in the vertical direction H to return the punch 13 to the initial position (position shown in FIG. 4).
  • the case 11 includes a cylindrical small-diameter inner peripheral surface 21, a cylindrical large-diameter inner peripheral surface 22 having a larger diameter than the small-diameter inner peripheral surface 21, and a circle between the small-diameter inner peripheral surface 21 and the large-diameter inner peripheral surface 22.
  • a case main body 25 having an annular stepped surface 23 and a cylindrical outer peripheral surface 24; an annular flange 26 integrally formed at one end in the vertical direction H of the outer peripheral surface 24; The main body 25 and a notch portion 27 formed in the flange portion 26 are provided, and the case body 25 is engaged with the head of the bolt 6 screwed to the press pad 5 at the notch portion 27 so that the press pad.
  • the small-diameter inner peripheral surface 21 is formed to have the same diameter from one annular end surface 28 in the vertical direction H of the case 11 to the stepped surface 23, and the large-diameter inner peripheral surface 22 also has the same diameter from the step surface 23 to the other annular end surface 29 in the vertical direction H of the case 11.
  • Are, hollow portion 12 which opens to the outside of the case 11 in s each end face 28 and the end surface 29 is defined by the small-diameter inner circumferential surface 21 and the large diameter inner peripheral surface 22.
  • the punch 13 includes a conical projection 31 and a cylindrical bottom surface 32 which is concentric with the bottom surface 32 and is integrally provided on one circular end surface 33 in the vertical direction H at the circular bottom surface 32.
  • the small-diameter punch portion 35 that is movably contacted with the small-diameter inner peripheral surface 21 of the case 11 in the vertical direction H, and the other circular end surface 36 in the vertical direction H of the small-diameter punch portion 35 It is provided integrally with the end surface 37 and has a diameter larger than that of the small-diameter punch portion 35 and is in contact with the large-diameter inner peripheral surface 22 of the case 11 so as to be movable in the vertical direction H with a cylindrical large-diameter outer peripheral surface 38.
  • a large-diameter punch portion 39, and the small-diameter punch portion 35 can protrude out of the case 11 from one end face 28 in the vertical direction H of the case 11.
  • the other circular end surface 40 in the vertical direction H of the large-diameter punch portion 39 protruding out of the case 11 comes into contact with the lower surface 41 of the pressing plate 3.
  • the protrusion 31 is formed integrally with one end surface 33 in the vertical direction H of the small-diameter punch portion 35 that can protrude out of the case 11 from one end surface 28 in the vertical direction H of the case 11.
  • the punch 13 is connected to the small-diameter outer peripheral surface 34 via the curved surface 42, so that the punch 13 can be extracted from the hollow portion 12 of the case 11 via the other end surface 29 in the vertical direction H of the case 11. It has become.
  • the elastic member 14 that surrounds the small-diameter punch portion 35 and is disposed in the hollow portion 12 is in contact with the stepped surface 23 of the case 11 at one end 51 and at the other end 52 with the small-diameter outer peripheral surface 34 of the punch 13.
  • the punch 13 is brought into contact with the annular stepped surface 53 between the outer peripheral surface 38 and the punch 13 is elastically pressed toward the initial position in the vertical direction H to return the punch 13 to the initial position. Yes.
  • the die 10 is connected to the circular hole 61 into which the small-diameter punch portion 35 of the punch 13 is inserted, and has a larger diameter than the circular hole 61 and discharges punch scraps 62 (see FIG. 8).
  • the circular hole 61 is defined by a cylindrical inner surface 64 of the die 10, and one annular edge 65 of the cylindrical inner surface 64 has a cylindrical inner surface 64 and a cylindrical inner surface 64. Is defined by a crossing edge with one annular end surface 66 of the die 10 orthogonal to the right angle edge (see FIG. 5).
  • the small-diameter outer peripheral surface 34 of the small-diameter punch portion 35 of the punch 13 is in contact with the small-diameter inner peripheral surface 21 of the case 11 so as to be movable in the vertical direction H.
  • the punch holder 7 can be assembled by inserting the punch 13 into the hollow portion 12 of the case 11 together with the elastic member 14 being inserted into the hollow portion 12 of the case 11. , Repair, A short period of time can be easily assembled at the time of Mamoru, moreover, it is possible to reduce the manufacturing costs and maintenance expenses.
  • the hollow portion 12 is open to the outside of the case 11 as it is at the end surface 29 of the case body 25.
  • the case 11 in the punch holder 7 shown in FIG. 9 further includes an annular member 82 that is fixed to the other end surface 29 in the vertical direction H of the case body 25 and has a circular through hole 81.
  • the large-diameter punch portion 39 includes a large-diameter outer peripheral surface 38 that contacts the large-diameter inner peripheral surface 22 of the case body 25 so as to be movable in the vertical direction H, and a stepped portion surface 53 that contacts the other end 52 of the elastic member 14.
  • a large-diameter punch projecting portion 86 that penetrates the through hole 81 of the annular member 82 and projects out of the case 11 from the other end surface 29 in the vertical direction H of the case 11 is integrally provided.
  • the punch 13 is prevented from coming out of the portion 12 by contact with the annular member 82 of the large-diameter punch body 83, and the large-diameter punch protrusion 86 is in contact with the lower surface 41 of the pressing plate 3.
  • the diameter of the large-diameter punch protrusion 86 may be larger or smaller than the diameter of the small-diameter punch portion 35.
  • the elastic member 14 and the punch 13 are inserted into the hollow portion 12 of the case 11 before the annular member 82 is fixed to the end surface 29 of the case body 25.
  • the punch holder 7 can be assembled by fixing the annular member 82 to 29, and can be easily assembled in a short time during manufacturing, repair and maintenance, and the manufacturing cost and maintenance cost can be reduced. Can be planned.
  • the annular member 82 is fixed to the end surface 29 of the case main body 25, and the punch 13 is prevented from coming out of the hollow portion 12 of the case 11 in contact with the annular member 82 of the large-diameter punch main body 83.
  • a throttle portion 91 is formed in connection with the other end surface 29 in the vertical direction H of the case body 25, and the inner peripheral surface of the throttle portion 91.
  • the large-diameter punch protruding portion 86 protrudes out of the case 11 through the hole 93 defined by 92, and the punch 13 escapes from the hollow portion 12 of the case 11 to the narrowed portion 91 of the large-diameter punch main body 83. You may make it prohibit by contact.
  • the elastic member 14 and the punch 13 are inserted into the hollow portion 12 of the case 11 before the throttle portion 91 is formed, and then the punch portion 7 is formed by forming the throttle portion 91.
  • the punch portion 7 is formed by forming the throttle portion 91.
  • the protrusion 31 is formed in a conical shape.
  • the one end surface 33 of the small-diameter punch portion 35 is arranged concentrically with the end surface 33.
  • a circular bottom surface 95 concentric with the end surface 33 and a circular shape having a smaller diameter than the circular bottom surface 95 are provided on one end surface 33 of the small-diameter punch portion 35.
  • the protrusions 31 may be formed, and any of the protrusions 31 can effectively prevent the protrusions 31 from coming out of the breakthrough hole 73 after the formation of the breakthrough hole 73, and the movement of the thin metal plate 8 can be prevented.
  • the conical portion 98 that precedes the piercing hole 73 has a large apex angle ⁇ 2.
  • the sag can be prevented and the sag of the conical part 98 can be effectively prevented.
  • the sag of the truncated cone part 99 can also be prevented.
  • the possibility of 31 sag can be eliminated, and durability can be improved.
  • the punch 13 is moved up and down to form the through hole 74.
  • the punch 13 may be moved obliquely to form the through hole 74 in the inclined portion of the thin metal plate 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

La présente invention concerne un appareil (1) pour le découpage à l'emporte-pièce d'une tôle mince. L'appareil comprend un support de matrice supérieure (2) qui est animé d'un mouvement de bas en haut au moyen d'un vérin hydraulique et analogue ; une plaque de pressage (3) qui est solidement attachée au support de matrice supérieure (2) ; un grain de poussée (5) qui pend du support de matrice supérieure (2) par un élément élastique (4) disposé entre eux ; un porte-poinçon (7), formant l'unité de poinçon, qui est solidement attaché au grain de poussée (5) par un boulon (6) ; et une matrice inférieure (9) sur laquelle est placée une tôle mince (8) devant être perforée ; et une matrice (10) qui est incluse dans la matrice inférieure (9).
PCT/JP2012/003178 2011-05-18 2012-05-16 Unité de poinçon pour le découpage à l'emporte-pièce d'une tôle mince, et appareil de découpage à l'emporte-pièce la comportant WO2012157260A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280023641.8A CN103747892B (zh) 2011-05-18 2012-05-16 冲压金属板的冲头单元以及具有该冲头单元的金属板冲压设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011111466A JP5857446B2 (ja) 2011-05-18 2011-05-18 薄板金属の孔明け用のパンチユニット及びこのパンチユニットを具備した薄板金属の孔明け装置
JP2011-111466 2011-05-18

Publications (1)

Publication Number Publication Date
WO2012157260A1 true WO2012157260A1 (fr) 2012-11-22

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PCT/JP2012/003178 WO2012157260A1 (fr) 2011-05-18 2012-05-16 Unité de poinçon pour le découpage à l'emporte-pièce d'une tôle mince, et appareil de découpage à l'emporte-pièce la comportant

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Country Link
JP (1) JP5857446B2 (fr)
CN (1) CN103747892B (fr)
WO (1) WO2012157260A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193241A (en) * 1981-05-22 1982-11-27 Nissan Motor Co Ltd Punching device
JPH0947828A (ja) * 1995-08-04 1997-02-18 Sumihiro Gotou 穴あけ用のポンチとダイス
JPH10263723A (ja) * 1997-03-19 1998-10-06 Hitachi Aic Inc プレス用金型の構造
JP2005254292A (ja) * 2004-03-12 2005-09-22 Japan Uniflow Co Ltd タレットパンチ及びそのせん断粉トラブル防止方法
JP2008155216A (ja) * 2006-12-20 2008-07-10 Oiles Ind 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並びにその方法
JP2008290088A (ja) * 2007-05-22 2008-12-04 Wanzu:Kk 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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07120545B2 (ja) * 1991-03-27 1995-12-20 山一電機株式会社 入れ子形加圧接続子
JP3039595B2 (ja) * 1993-12-10 2000-05-08 株式会社ヨコオ 電気接続用コネクタピン
JPH11723A (ja) * 1997-06-10 1999-01-06 Hitachi Aic Inc プリント基板打抜き用金型
JP2004114251A (ja) * 2002-09-27 2004-04-15 Hitachi Koki Co Ltd 打撃工具
DE602004024670D1 (de) * 2003-04-30 2010-01-28 Oiles Industry Co Ltd Lochstempel für dünnblech und stanzvorrichtung für dünnblech mit dem lochstempel
JP4527453B2 (ja) * 2004-06-21 2010-08-18 株式会社アマダ パンチ金型組立体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193241A (en) * 1981-05-22 1982-11-27 Nissan Motor Co Ltd Punching device
JPH0947828A (ja) * 1995-08-04 1997-02-18 Sumihiro Gotou 穴あけ用のポンチとダイス
JPH10263723A (ja) * 1997-03-19 1998-10-06 Hitachi Aic Inc プレス用金型の構造
JP2005254292A (ja) * 2004-03-12 2005-09-22 Japan Uniflow Co Ltd タレットパンチ及びそのせん断粉トラブル防止方法
JP2008155216A (ja) * 2006-12-20 2008-07-10 Oiles Ind 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並びにその方法
JP2008290088A (ja) * 2007-05-22 2008-12-04 Wanzu:Kk 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

Also Published As

Publication number Publication date
CN103747892A (zh) 2014-04-23
JP5857446B2 (ja) 2016-02-10
CN103747892B (zh) 2016-09-14
JP2012240076A (ja) 2012-12-10

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