EP0557551A1 - Gesenk mit Dreier-Führungsstruktur - Google Patents

Gesenk mit Dreier-Führungsstruktur Download PDF

Info

Publication number
EP0557551A1
EP0557551A1 EP92103279A EP92103279A EP0557551A1 EP 0557551 A1 EP0557551 A1 EP 0557551A1 EP 92103279 A EP92103279 A EP 92103279A EP 92103279 A EP92103279 A EP 92103279A EP 0557551 A1 EP0557551 A1 EP 0557551A1
Authority
EP
European Patent Office
Prior art keywords
cam
die
slide cam
base
slide
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.)
Withdrawn
Application number
EP92103279A
Other languages
English (en)
French (fr)
Inventor
Matsuoka Mitsuo
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.)
Umix Co Ltd
Original Assignee
Umix 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 Umix Co Ltd filed Critical Umix Co Ltd
Priority to EP92103279A priority Critical patent/EP0557551A1/de
Publication of EP0557551A1 publication Critical patent/EP0557551A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape

Definitions

  • This invention relates to a die having triple-structural hanging cams.
  • a lower die is mounted on a bolster of a press machine and a upper die is mounted on a ram of the machine and a work placed on the lower die is pierced by vertical movement of the ram.
  • Machining like piercing of a work is performed by the vertical movement of the ram, thus it is easy to machine a horizontal or almost horizontal portion of the work placed on the lower die, but it is difficult to machine a slant face of the work, especially the same having a steep slant.
  • cams shown in Fig. 6 are used so as to enable machining such as piercing on slant faces and steep slant faces. That is, a slide base 103 is fixed to an undersurface of a base 102 of a upper die 101. The slide base 103 is slidably provided with a slide cam 104 which is placed beneath the slide base 103 and slides on that base 103.
  • a positioning member 108 for a work 107 is fixed to a top surface of a base 106 of a lower die 105, and on a front slant surface 109 of the slide cam 104, punches 110 are disposed perpendicularly to a machining portion of the work 107.
  • an actuating cam 112 is fixed to a position opposing to a rear slant face 111 of said slide cam 104.
  • Holes are pierced in a non-horizontal slant face or steep slant face in such a way as mentioned above.
  • the press work usually, in the press work several pressing machines are disposed spacing a predetermined distance in the order of process, providing a drawing die, perimeter trimming die, piercing die and a forming die respectively, and the works 107 are carried between the dies by a conveyor.
  • the work 107 is fed from one side of the lower die 105, for example, from the right side of the figure and positioned by the positioning member 108, and after piercing the work 107 must be taken out from the other side of the lower die 105, that is, the left side of the figure, making the work 107 jump over the actuating cam 112.
  • the actuating cam 112 When taking out the work 107 from the positioning member 108 to the exterior of the lower die 105, the actuating cam 112 obstructs the taking-out of the work 107 due to its height.
  • the slide cam 104 In order to solve this problem of the obstruction of the actuating cam 112 for being too high, if the actuating cam 112 is placed lower to the extent not obstructing, the slide cam 104 must be made larger to the extent that it contacts with the lower actuating cam 112, thus the slide cam 104 should be extremely large.
  • scrap that is, punching residue produced when piercing a hole in the work 107 by the punch 110 becomes troublesome to remove.
  • the reason is that the scrap produced when piercing holes is usually taken away automatically by sliding of its own weight from the piercing position to the exterior of the lower die 105 through a slant discharge path.
  • the piercing position must be in some height. It is because that, when the actuating cam 112 is located lower, it frequently obstructs the ejection path.
  • the present invention aimed to enable automated press work in such a way that feeding and taking-out of works are not obstructed by an actuating cam fixed to a lower die even in a die provided with a cam which machines a slant face
  • the invention proposes a die having triple-structural hanging cams comprising; a slide cam base which is fixed to a base of a upper die and is formed into a polyhedron guide portion at its end; a slide cam which holds the polyhedron guide portion of the slide cam base and slides the polyhedron guide portion and carries a machining member like a punch; an elastic body which is interposed between the slide cam base and slide cam and energizes the slide cam; and an actuating cam which contacts with the slide cam to drive it, a plurality of positioning groves are formed on the undersurface of the actuating cam, said die further comprises positioning protrusions which are provided in lower die portions facing said positioning groves of the actuating cam and engage said positioning groves.
  • the upper die has a triple-structural comprising: the slide cam base which is fixed to the base of the upper die and is formed into the polyhedron guide portion at its end; the slide cam which holds the polyhedron guide portion of the slide cam base and slides the polyhedron guide portion and carries a machining member like a punch; the elastic body which is interposed between the slide cam base and the slide cam and energizes the slide cam; and the actuating cam which contacts with the slide cam to drive it, while the lower die has no actuating cam of a large height, therefore the die of the invention greatly facilitates feeding and taking-out of works.
  • a plurality of the positioning grooves are formed on the undersurface of the actuating cam and the positioning protrusions which engage said positioning grooves are provided in the lower die portions facing said positioning grooves of the actuating cam, thus when machining a steep slant face of a work, the position of the actuating cam is precisely determined and this enables precise machining.
  • Fig. 1 is a longitudinal sectional view showing one practical embodiment of a die having triple-structural hanging cams of the invention when it is at the upper dead-end point.
  • Fig. 2 is a plan view showing the lower die of Fig. 1.
  • Fig. 3 is a sectional view taken along line III - III of Fig. 1.
  • Fig. 4 is a sectional view taken along line IV - IV of Fig. 1.
  • Fig. 5 is a longitudinal sectional view showing the embodiment of Fig. 1.
  • Fig. 6 is a longitudinal sectional view showing a die having conventional cams which are used for machining a slant face of a work.
  • Fig. 1 is a longitudinal sectional view showing one practical embodiment of a die having triple-structural hanging cams of the invention when it is at the upper dead-end point
  • Fig. 2 is a plan view showing the lower die of Fig. 1
  • Fig. 3 is a sectional view taken along line III - III of Fig. 1
  • Fig. 4 is a sectional view taken along line IV - IV of Fig. 1
  • Fig. 5 is a longitudinal sectional view showing the embodiment of Fig. 1 when it is at the lower dead-end point.
  • the present invention proposes a die having triple-structural hanging cams comprising; a slide cam base 5 which is fixed with a bolt 3 to a base 2 of a upper die 1 and is formed into a polyhedron guide portion 43 at its end which has a substantially square section; a slide cam 7 which holds the polyhedron guide portion of the slide cam base 5 and slides the polyhedron guide portion and carries a machining member like a punch 6; an elastic body 8 which is interposed between the slide cam base 5 and the slide cam 7 and energizes the slide cam 7; and an actuating cam 9 which contacts with the slide cam 7 to drive the cam 7, a plurality of positioning grooves 10 are formed in T-shape on an undersurface of the actuating cam 9, said die further comprises positioning protrusions 12 which are provided in lower die 11 portions facing said positioning grooves 10 of said actuating cam 9 and engage said positioning grooves 10.
  • the positioning member 14 which positions the work 13 is fixed with a bolt 22 to a base 21 of the lower die 11.
  • the positioning member 14 is provided with die-brushes 26 for piercing holes in piercing positions.
  • a wear plate 28 which contacts a rear face 27 of the actuating cam 9 to slide the cam 9, is fixed with a bolt 29.
  • positioning protrusions 12, which position the actuating cam 9, are projectedly fixed with bolts 86.
  • the positioning protrusions 12 are used for positioning the actuating cam 9 and are disposed, in T-shape, in the positions facing to the positioning grooves 10 to engage with said grooves 10 as shown in Fig. 2.
  • positioning protrusion 12 Installation of only one positioning protrusion 12 does not suffice to position the actuating cam 9 precisely, and thus another positioning protrusion 12 is so disposed that it perpendicularly intersects the former protrusion in T-shape. And the positioning protrusion 12 is so formed that its upper taper slant faces 30 make an apex angle of 90° and it completely contacts with the groove 10 of the actuating cam 9.
  • This positioning protrusion 12 is made of a square sectional rod and the groove 10 is formed with two plates 81, integrating them with a bolt 87.
  • the grooves 10 of the actuating cam 9 completely contact with the taper faces 30 of the two positioning protrusions 12 disposed in T-shape, therefore positioning of the actuating cam 9 can be performed precisely and stably. If dust adheres to the positioning protrusion 12, the upper die 1 goes down and crushes the dust, thus it does not affect the precision in positioning.
  • Positioning of the actuating cam 9 is described concerning the example using a straight line positioning groove 10 and straight line positioning protrusion 12, but a dot-like positioning groove and protrusion may be used.
  • the guide member 24 is fixed to a precise position on the base 21 of the lower die 11, and is positioned firmly with a key 35 making its back face 34 to contact with a heel portion 33 of the base 21 so that the guide member 24 will not be moved when the actuating cam 9 comes down and contacts with it and slides.
  • the upper surface of the actuating cam 9 is formed into a slant face 41 which goes down as it approaches a positioning member 14.
  • This actuating cam 9 is positioned by the above-mentioned guide member 24 and simultaneously slides the slide cam 7 to pierce a hole 15 in the work 13.
  • a tetrahedron guide portion 43 is formed which has a substantially square section and an edge line 42 at its lower end.
  • the slide cam 7 is provided which slidably holds the tetrahedron guide portion 43 of this slide cam base 5 and slides on said actuating cam 9.
  • This slide cam 7 is comprised of a V-shaped groove member 44 and a machining member 45 which carries punches 6.
  • the V-groove member 44 is positioned by a key 46 which is struck into a contacting portion of both the members, and fixed to the member 45 with bolts 48, erecting a stopper pin 47.
  • the top face of the slide cam 7 is the same as the slant face of the tetrahedron guide portion 43 of said slide cam base 5, and formed into a V groove which receives the tetrahedron guide portion 43, and the lower plane 51 of the tetrahedron guide portion 43 of said slide cam base 5 is supported by fixing wear plates 49 with bolts 50, and the upper plane 52 is pressed by pressing plates 54 which are fixed with bolts 53 to the slide cam 7, and thus the tetrahedron guide portion 43 of the slide cam base 5 is slidably provided with the slide cam 7.
  • a key 82 is fixed with a bolt 83, and further on both sides of the key 82, wear plates 84 are fixed with bolts 85 and are engaged with a key way 86 of the slide cam 7 and contacted with its lower face.
  • the punches 6 for piercing holes 15 are mounted on the slide cam 7 by fixing punch plates 61 with bolts 62.
  • a stripper plate 63 is energized by a cushion rubber 64 and presses the work 13 before piercing the holes 15 in the works 13.
  • a holding hole 65 is provided in concave form at a rear end part of the tetrahedron guide portion 43 of the slide cam base 5, and in a position facing this holding hole 65, a supporting plate 66 is disposed and fixed with a bolt 67 to the slide cam 7, and the elastic body 8 like a coil spring is provided in contactile state between the holding hole 65 and support plate 66.
  • a stopper pin 47 erected on the slide cam 7 is made to engage with an end portion 69 of a stop groove 68 formed on the lower edge line 42 of the tetrahedron guide portion 43 of the slide cam base 5.
  • a safety stopper 70 is provided in said holding hole 65 by screwing to define radial movement of the elastic body 8, and simultaneously is made to pass through the supporting plate 66, and the end portion of the stopper 70 is formed into a head 71, thus if the stopper pin 47 does not stop at the end portion 69 of the stop groove 68, the support plate 66 is made to bump the head 71 to stop the stopper pin 47, thus eliminating a safety problem.
  • the actuating cam 9 can also go up, and further as shown in Figs. 1 and 4, the actuating cam 9 is slidably hanged, via a hanging plate 72, by the slide cam 7 so that the actuating cam 9 can slide the slide cam 7. That is, the hanging plate 72, which is fixed with bolts 73 to both sides of the slide cam 7, supports supporting lower faces 75, which are formed on both sides of the actuating cam 9 and in parallel with the slant face 41, by a supporting piece 76 underneath the face 75. Further, in order to hang the actuating cam 9 by this hanging plate 72, a stopper 77 is formed in a position in which the actuating cam 9 bumps the upper face 78 of the hanging plate 72. The actuating cam 9 is supported by the hanging plates 72 on both the sides and is hanged by the slide cam 7, bumping the stopper 77 on the upper face 78 of the hanging plate 72.
  • Fig. 1 shows a state of the die at its upper dead-end point, where the slide cam 7, which is slidably provided on the tetrahedron guide portion 43 of the slide cam base 5 mounted on the base 2 of the upper die 1, bumps the stopper pin 47, and furthermore the actuating cam 9 is hanged by the slide cam 7 in such a way that its stopper 77 engages with the upper face 78 of the hanging plate 72.
  • the actuating cam 9 also goes down, first contacting its rear face 27 with the wear plate 28 of the vertical wall 23 of the guide member 24 in the lower die 11, and sliding. Then the positioning groove 10 or the bottom face 32 of the actuating cam 9 contacts completely with the positioning protrusion 12 of the lower die 11, and a position of the actuating cam 9 to the lower die 11 is determined.
  • the slide cam 7 advances toward the work 13 between the actuating cam 9 and slide cam base 5 and then pierces the holes 15 in the work 13 by the punches 6.
  • the state of the upper die 1 at the lower dead-end point where the holes 15 are pierced is shown in Fig. 5.
  • piercing processing was described as an example, but of course the present invention may be applied to other working such as forming and bending.
  • slide cam base 5, slide cam 7, actuating cam 9 and the guide member 24 are standardized, these components can promptly upper die with various works of different dimensions.
  • the present invention proposes a die having triple-structural hanging cams comprising: a slide cam base which is fixed to a base of a upper die and is formed into a polyhedron guide portion of the slide cam base and slides the polyhedron guide portion and carries a machining member like a punch; an elastic body which is interposed between the slide cam base and slide cam and energizes the slide cam; an actuating cam which contacts with the slide cam to drive it, a plurality of positioning grooves are formed on an undersurface of the actuating cam, said die further comprises positioning protrusions which are provided in lower die portions facing said positioning grooves of the actuating cam and engage said positioning grooves, while the upper die has triple-structural hanging cams of the slide cam base, slide cam, and the actuating cam, and the lower die has no actuating cam of a large height, thus the die of the invention greatly facilitates feeding and taking-out of works.
  • a plurality of the positioning grooves are formed on the undersurface of the actuating cam and the positioning protrusions which engage with said positioning grooves are provided in the lower die portions facing said positioning grooves of the actuating cam, thus when machining a steep slant face of a work, the position of the actuating cam is precisely determined, and this enables precise machining.
  • the die of the present invention can upper die with machining of works having different dimensions.
EP92103279A 1992-02-26 1992-02-26 Gesenk mit Dreier-Führungsstruktur Withdrawn EP0557551A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92103279A EP0557551A1 (de) 1992-02-26 1992-02-26 Gesenk mit Dreier-Führungsstruktur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92103279A EP0557551A1 (de) 1992-02-26 1992-02-26 Gesenk mit Dreier-Führungsstruktur

Publications (1)

Publication Number Publication Date
EP0557551A1 true EP0557551A1 (de) 1993-09-01

Family

ID=8209367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103279A Withdrawn EP0557551A1 (de) 1992-02-26 1992-02-26 Gesenk mit Dreier-Führungsstruktur

Country Status (1)

Country Link
EP (1) EP0557551A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028117A1 (de) * 1997-12-03 1999-06-10 Harald Weigelt Keiltrieb
EP1531015A1 (de) * 2003-11-14 2005-05-18 Umix Co., Ltd. Doppelwirkendes Nocken-Presswerkzeug
CN104043718A (zh) * 2014-06-26 2014-09-17 梧州恒声电子科技有限公司 一种可调节大小的盆架类产品的斜冲花模具结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700407A (en) * 1955-01-25 trimble
JPS5641030A (en) * 1979-09-11 1981-04-17 Nissan Motor Co Ltd Cam device of press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700407A (en) * 1955-01-25 trimble
JPS5641030A (en) * 1979-09-11 1981-04-17 Nissan Motor Co Ltd Cam device of press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 93 (M-74)(765) 17 June 1981 & JP-A-56 041 030 ( NISSAN JIDOSHA KK ) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028117A1 (de) * 1997-12-03 1999-06-10 Harald Weigelt Keiltrieb
EP1531015A1 (de) * 2003-11-14 2005-05-18 Umix Co., Ltd. Doppelwirkendes Nocken-Presswerkzeug
CN104043718A (zh) * 2014-06-26 2014-09-17 梧州恒声电子科技有限公司 一种可调节大小的盆架类产品的斜冲花模具结构
CN104043718B (zh) * 2014-06-26 2016-04-20 梧州恒声电子科技有限公司 一种可调节大小的盆架类产品的斜冲花模具结构

Similar Documents

Publication Publication Date Title
EP0484588B1 (de) Gesenk mit Führungsschlitten
US6463839B2 (en) Punch holder apparatus
JP3540308B2 (ja) スライドカム型
US5901628A (en) Die lifting system for a turret punch press
US6220137B1 (en) Press apparatus
EP1000734A2 (de) Pressvorrichtung
JPH04138825A (ja) スライドカムを備えた金型
EP0557551A1 (de) Gesenk mit Dreier-Führungsstruktur
JPH0375247B2 (de)
US4466317A (en) Method and apparatus for safety for presses
US4392400A (en) Trimming and piercing apparatus
CN211027729U (zh) 一种小空间多孔位斜冲新型结构
JP2575723B2 (ja) 板材の曲げ加工方法及び曲げ加工用金型
CA2062165A1 (en) Die having triple-structural hanging cams
JP2774211B2 (ja) 吊りカムを備えた金型
US3473425A (en) Stamping apparatus
CN212121391U (zh) 一种安全型汽车配件冲压模具
KR950002096B1 (ko) 3중 구조의 행잉 캠을 구비한 금형
JP3361315B2 (ja) 管切断装置
EP1547703B1 (de) Abstreifvorrichtung für Stanzstempel
CN217617299U (zh) 一种能够检测冲压件位置的模具
CN217451685U (zh) 冲裁机构以及冲裁机
JPS6310185Y2 (de)
JPH0117378Y2 (de)
JPS6025305Y2 (ja) プレスワ−クの孔あけ装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19940302