EP1000734A2 - Dispositif de pressage - Google Patents

Dispositif de pressage Download PDF

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Publication number
EP1000734A2
EP1000734A2 EP99111510A EP99111510A EP1000734A2 EP 1000734 A2 EP1000734 A2 EP 1000734A2 EP 99111510 A EP99111510 A EP 99111510A EP 99111510 A EP99111510 A EP 99111510A EP 1000734 A2 EP1000734 A2 EP 1000734A2
Authority
EP
European Patent Office
Prior art keywords
passive cam
cam
force
passive
guide
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Withdrawn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
EP99111510A
Other languages
German (de)
English (en)
Other versions
EP1000734A3 (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
Publication of EP1000734A2 publication Critical patent/EP1000734A2/fr
Publication of EP1000734A3 publication Critical patent/EP1000734A3/fr
Withdrawn legal-status Critical Current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
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • a press apparatus has an actuation cam in a top force, a passive cam in a bottom force which is contact-pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in the bottom force which slides and guides the passive cam, a guide post which is mounted across the guide base and moves so as to slide the passive cam, and force applying means which applies a force to the passive cam towards an opposite-work side, and when the passive cam to which the processing member such as a punch was mounted is repaired, such a press apparatus makes it easy to remove the passive cam from the bottom force so as to improve workability.
  • the present invention relates to a press apparatus having an actuation cam in a top force, a passive cam which is contact-pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in a bottom force which slides and guides the passive cam, a guide post which is mounted across the guide base and moves so as to slide the passive cam, and force applying means which applies a force to the passive cam towards an opposite-work side, and more specifically relates to the press apparatus which is constituted so that the guide post is mounted across the nearest vicinity of a portion of the passive cam to which the processing member such as the punch is mounted, and is positioned on both sides of the processing member, and which can improve processing accuracy of a cam die as much as possible.
  • a normal press apparatus is constituted so that a bottom force is mounted to a bed of a press machine and a top force is mounted to a ram, and when the top force is lifted and lowered, boring and forming processes are performed. Since the top force is lifted and lowered in the vertical direction, the process in the lateral direction is performed in such a manner that the processing force in the vertical direction is converted into the processing force in the lateral direction by using a cam member.
  • a locating member 104 for locating a work 103 is projected from a bottom force 101.
  • a passive cam 107 having a punch 106 is provided on a position which faces a blanked hole 105 in a side wall of the work 103 so as to slide.
  • a heel 108 is fixed to a backward portion of the passive cam 107.
  • a coil spring 109 is fitted into the passive cam 107 so as to be externally fitted in a point of a rod 110 through which the heel 108 is put.
  • One end of the coil spring 109 is brought into contact with the heel 108, and a nut 112 is fitted to the other end of the coil spring 109 via a washer 111.
  • An actuation cam 118 is projected from the top force 116 so as to be in a position which faces the passive cam 107.
  • the top force 116 is lowered and the actuation cam 118 advances the passive cam 107 against the applied force of the coil spring 109, and a hole 105 is bored into the work 103 by the punch 106 and a die 125.
  • the passive cam 107 is brought back by the applied force of the coil spring 109.
  • a flange 121 is projected from both sides of the lower part of the passive cam 107, and a sidewise guide plate 122 and an upper guide plate 123 for guiding the flange 121 are fixed to the bottom force 101.
  • a reference numeral 124 is a wear plate.
  • the passive cam 107 slides repeatedly, it is worn out, and thus a gap is generated between the passive cam 107 and the sidewise guide plate 122. As a result, the passive cam 107 cannot slide in the straight linear direction, and it slides non-linearly due to the gap. Since the punch 106 mounted to the passive cam 107 also slide non-linearly, the punch 106 cannot blank the die 125 in its whole periphery with a suitable clearance. As a result, burr occurs on the periphery of the blanked hole, and high-quality boring process cannot be performed. Moreover, since the punch 106 and the die 125 carried out the blanking with burr, the gap causes the cutting edges of the punch 106 and the die 125 to be nicked. In order to attain the high-quality pressing process, the passive cam 107 should be moved straight and exactly without non-linear movement.
  • the present invention is devised in such points in view.
  • the present invention provides a press apparatus having an actuation cam in a top force, a passive cam in a bottom force which is contact-pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in the bottom force for sliding and guiding the passive cam, guide posts which are mounted across the guide base and move so as to slide the passive cam and force applying means for applying a force to the passive cam towards an opposite-work side.
  • the passive cam is fitted into the guide base so that when the guide posts mounted across the guide base are drawn out, the passive cam is lifted up and dismounted.
  • the passive cam advances straight and moves through the guide posts in order to attain high-quality pressing process.
  • the passive cam is externally fitted into the guide base in order to lift and dismount the passive cam.
  • inclined weight is placed on the passive cam due to the forming process or the like, and thus the passive cam is apt to shift.
  • the sliding surface of the passive cam and the guide base has a vertical surface.
  • the present invention provides a press apparatus having an actuation cam in a top force, a passive cam in a bottom force which is contact-pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in the bottom force for sliding and guiding the passive cam, guide posts which are mounted across the guide base and move so as to slide the passive cam and force applying means for applying a force to the passive cam towards an opposite-work side.
  • the guide posts are mounted across the nearest vicinity of a portion of the passive cam where the processing member such as the punch is mounted and are positioned on both sides of the processing member.
  • FIG. 1 is a side view showing a press apparatus according to one concrete embodiment of the present invention and showing a section of one portion of a top force in an on-lowering state.
  • FIG. 2 is a side view showing a section of one portion in a bottom dead center.
  • FIG. 3 is a sectional view of a middle portion of FIG. 2.
  • FIG. 14 is a front view taken along line IV-IV of FIG. 2.
  • FIG. 5 is a back view taken along line V-V of FIG. 2.
  • the present embodiment refers to an example that a hole is bored in a work.
  • a locating member 3 for locating a work W is fixed onto a substrate 2 in a bottom force 1 by a bolt 4.
  • a passive cam 6 for mounting a boring punch 5 for boring the work W is positioned so as to face the work W.
  • the passive cam 6 is provided onto guide posts 8 which are mounted across a guide base 7 so as to slide, and the guide base 7 is fixed to the substrate 2 by a bolt 9.
  • a mounting plate 10 is fixed to a work processing side of the passive cam 6 by a bolt 11.
  • a punch plate 12 is fitted into the mounting plate 10 by a bolt 13 so that the boring punch 5 is mounted.
  • a force is applied to a stripper plate 14 by a cushion rubber 15, and the stripper plate 14 presses the work W before a hole is bored in the work W.
  • a reference numeral 16 is a die which is fitted to the boring punch 5 and carries out piercing.
  • Supporting plates 17 and 18 are fittingly jointed with the forward and backward ends of the guide base 7 by bolts 19 and 20.
  • a side which is close to the work W is referred to as forward
  • a side which is far from the work W is referred to as backward.
  • the guide posts 8 are mounted across the supporting plates 17 and 18 horizontally, and bushes 21 and 22 which were pressed into the passive cam 6 were externally fitted into the guide posts 8 so that the passive cam 6 is provided so as to slide.
  • a length of the passive cam 6 between the supporting plates 17 and 18 is set so as to be shorter than a distance between the supporting plates 17 and 18. This is because the passive cam 6 can move in the lateral direction.
  • the guide posts 8 are brought to the boring punch 5 as close as possible in order to improve boring accuracy using the boring punch 5. Moreover, the guide posts 8 are positioned respectively on both sides of the boring punch 5, namely, both sides of the boring punch 5 in the vertical direction of FIGS. 1 and 2 (not shown). Since the passive cam 6 is guided by the guide posts 8 so as to slide and the boring punch 5 is fixed to the passive cam 6, as the boring punch 5 is closer to the guide posts 8, it moves more accurately. Therefore, accurate processing can be carried out. When the guide posts 8 are positioned respectively on both the sides of the boring punch 5, the boring punch 5 can be held in more accurate and exact position compared with the case that only one guide post 8 is fitted into the passive cam 6, and thus accurate processing can be carried out.
  • a receiving plate 23 is positioned vertically on a backward end surface of the passive cam 6 and is fixed by a bolt 24.
  • a force is applied to the lower end portion of the receiving plate 23 by a coil spring 26 which is positioned in a central cavity section 25 (see FIG. 3) of the guide base 7.
  • a supporting pin 27 is positioned horizontally in the center of the cavity section 25, and its base end is fittingly joined with the supporting plate 17, and its point is inserted into the supporting plate 18.
  • the coil spring 26 is externally fitted to the supporting pin 27, and washer plates 28 are fitted into the supporting pin 27 so as to intervene between the backward end of the coil spring 26 and the front surface of the receiving plate 23.
  • FIG. 3 shows a state that the passive cam 6 is fitted into the guide base 7.
  • the passive cam 6 is externally fitted into the guide base 7.
  • a vertical wear plate 31 and an oblique wear plate 32 are fixed to the inner surface of the passive cam 6 respectively by bolts 33 and 34.
  • a vertical sliding surface 35 and an oblique sliding surface 36, which match with the vertical wear plate 31 and the oblique wear plate 32, are formed on the guide base 7. Even if the passive cam 6 is about to shift due to the forming process or the like, the passive cam 6 is fitted into the guide base 7 so as to stretch thereover, and the vertical wear plate 31 of the passive cam 6 is guided on the vertical sliding surface 35 of the guide base 7. Therefore, the passive cam 6 does not shift, and thus a high-quality product can be processed.
  • a base end small-diameter section 37 of the guide post 8 is fitted into a small-diameter hole 38 of the supporting plate 17, and a point section 39 of the guide post 8 is fitted into a supporting hole 40 of the supporting plate 17.
  • a stop plate 42 which contacts with point surfaces 41 of the guide posts 8, is fixed to the backward surface of the supporting plate 18 by a bolt 43 so that the guide posts 8 do not slip out of the supporting plates 17 and 18.
  • the guide posts 8 are moved backward (the right direction in the drawing) so as to be drawn out. Since the small-diameter sections 37 of the guide posts 8 are simply fitted into the small-diameter holes 38, the guide posts 8 can be drawn out easily by moving them in the right direction.
  • the passive cam 6 After the guide posts 8 are removed from the passive cam 6 and the guide base 7, when the passive cam 6 is lifted up, as shown in FIG. 3, the passive cam 6 is guided on the vertical sliding surface 35 of the guide base 7 so as to easily move upward. As a result, the passive cam 6 can be dismounted, and the boring punch 5 or the like can be dismounted easily from the passive cam 6. Therefore, the repairing workability is improved.
  • a wear plate 51 is fixed to a slanted surface of the backward surface of the passive cam 6 by a bolt 52.
  • a passive cam 63 which contacts with the wear plate 51 on the backward surface of the passive cam 6 in a bottom force 1 and presses and drives the passive cam 6, is fixed to a substrate 64 by a bolt 65.
  • the work W is placed on the locating member 3 in the bottom force 1.
  • FIG. 1 shows an on-lowering state of the top force 61.
  • the passive cam 63 in the top force 61 is brought into contact with the wear plate 51 of the passive cam 6 in the bottom force 1 so as to drive the passive cam 6 towards the work W against the applied force of the coil spring 26. At this time, the passive cam 6 is guided by the guide posts 8 so as to advance straight without non-linear movement.
  • FIG. 2 shows the top force 61 in a bottom dead center.
  • the top force 61 starts to lift.
  • the work W is pressed by the stripper plate 14 and the boring punch 5 moves backward, and the passive cam 6 is also moved backward by the applied force of the coil spring 26.
  • the top force 61 stops in a top dead center.
  • the coil spring 26 and the supporting pin 27 are positioned in the cavity section 25 of the guide base 7, and the passive cam 6 is externally fitted into the guide base 7. For this reason, when the passive cam 6 is lifted up, it can be lifted up easily because of no interference, and the passive cam 6 is guided on the vertical sliding surface 35 of the guide base 7 so as to be able to be lifted up smoothly.
  • the passive cam 6 is guided by the two guide posts 8 having a circular section, it advances straight without non-linear movement, and thus accurate processing can be carried out.
  • the passive cam 6 is externally fitted into the guide base 7, the passive cam 6 can be lifted up.
  • the passive cam 6 can be lifted up smoothly.
  • the guide posts 8 are provided across the nearest vicinity of the portion of the passive cam 6 where the processing member such as the boring punch 5 is mounted, and they are positioned on the both sides of the processing member. As a result, processing accuracy can be improved as much as possible.
  • the present invention can be applied to the other pressing processes such as a notching process and a forming process.
  • the above embodiment described an example that the coil spring is used as force applying means, but this means is not limited to this. Therefore, elastic materials such as rubber and urethane rubber or a gas spring may be used.
  • the guide base is constituted so that the guide posts are mounted horizontally, but the guide posts can be slanted.
  • the guide base requires a height higher than a certain value in order to make it possible to draw out the guide posts.
  • a press apparatus has an actuation cam in a top force, a passive cam in a bottom force which is pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in the bottom force for sliding and guiding the passive cam, guide posts which are mounted across the guide base and move so as to slide the passive cam, and force applying means for applying a force to the passive cam towards an opposite-work side.
  • the passive cam is fitted into the guide base so that when the guide posts mounted across the guide base are drawn out, the passive cam is lifted up so as to be able to be dismounted.
  • the present invention can perform high-quality pressing process.
  • the passive cam is externally fitted into the guide base, the passive cam is lifted up so as to be able to be dismounted.
  • the sliding surface of the passive cam and the guide base has a vertical surface
  • inclined weight is placed on the passive cam at the time of the forming process or the like, and thus the passive cam is apt to shift.
  • the present invention eliminates this shift and can process a product into a desired shape.
  • the sliding surface serves as a guiding surface, and thus the passive cam can be lifted up smoothly.
  • a press apparatus has an actuation cam in a top force, a passive cam in a bottom force which is contact-pressed and driven by the actuation cam and to which a processing member such as a punch is mounted, a guide base in the bottom force for sliding and guiding the passive cam, guide posts which are mounted across the guide base and move so as to slide the passive cam, and force applying means for applying a force to the passive cam towards an opposite-work side.
  • the guide posts are mounted across the nearest vicinity of a portion of the passive cam where the processing member such as the punch is mounted and are positioned on both the sides of the processing member. Therefore, processing accuracy can be improved by a cam die as much as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP99111510A 1998-11-11 1999-06-14 Dispositif de pressage Withdrawn EP1000734A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10320276A JP3069083B2 (ja) 1998-11-11 1998-11-11 プレス装置
JP32027698 1998-11-11

Publications (2)

Publication Number Publication Date
EP1000734A2 true EP1000734A2 (fr) 2000-05-17
EP1000734A3 EP1000734A3 (fr) 2000-05-31

Family

ID=18119707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111510A Withdrawn EP1000734A3 (fr) 1998-11-11 1999-06-14 Dispositif de pressage

Country Status (6)

Country Link
EP (1) EP1000734A3 (fr)
JP (1) JP3069083B2 (fr)
KR (1) KR20000034882A (fr)
CN (1) CN1110381C (fr)
BR (1) BR9904266A (fr)
CA (1) CA2276700A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1449600A1 (fr) * 2003-02-21 2004-08-25 Sankyo Oilless Industry, Inc. Dispositif à came et procédé pour aligner et fixer un outil
CN102407263A (zh) * 2011-12-06 2012-04-11 奇瑞汽车股份有限公司 一种斜锲机构
WO2013024072A1 (fr) 2011-08-12 2013-02-21 Qiagen Gmbh Procédé d'isolation d'acides nucléiques
CN103537542A (zh) * 2012-07-10 2014-01-29 成都爱信雅克科技有限公司 水平单动斜楔机构
CN106345895A (zh) * 2016-09-30 2017-01-25 安徽江淮汽车股份有限公司 一种侧冲侧翻斜楔机构

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002316223A (ja) * 2001-04-18 2002-10-29 Umix Co Ltd プレス装置
CN1315639C (zh) * 2004-05-25 2007-05-16 天津市天锻压力机有限公司 模具滑块夹紧定位方法及其装置
DE102005029140B4 (de) * 2005-06-23 2008-04-03 Elke Weigelt Werkzeugbefestigungseinrichtung für einen Keiltrieb
CN100455374C (zh) * 2006-01-20 2009-01-28 黄崇贤 热导管与散热鳍片的自动化组装设备
CN101597675B (zh) * 2009-06-12 2011-01-26 杭州旗锐工具有限公司 一种整体导板的热处理方法
CN102266890B (zh) * 2011-07-27 2013-06-12 东莞市大忠电子有限公司 双孔屏蔽罩级进模具的双侧冲孔、双侧孔翻边的一体化结构
CN103071735B (zh) * 2013-02-01 2015-01-07 昌辉汽车电器（黄山）股份公司 一种带倒钩冲压工件的退料结构
CN103433361B (zh) * 2013-07-19 2017-08-25 亿森（上海）模具有限公司 一种冲压用旋转拉冲机构
CN105772575A (zh) * 2014-12-26 2016-07-20 中核建中核燃料元件有限公司 一种定位格架外条带侧冲装置
KR102307952B1 (ko) 2019-12-05 2021-09-30 주식회사 포스코 프레스 성형 장치, 성형강판 및 프레스 성형 방법
CN112275905A (zh) * 2020-11-25 2021-01-29 奇瑞汽车股份有限公司 一种负角面侧冲孔模具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04344839A (ja) * 1991-05-18 1992-12-01 Oiles Ind Co Ltd プレス用カム型
JPH07290168A (ja) * 1994-04-25 1995-11-07 Oiles Ind Co Ltd プレス用カム型
US5711180A (en) * 1994-12-27 1998-01-27 Oiles Corporation Pressing cam die
EP0922509A1 (fr) * 1997-11-14 1999-06-16 Umix Co., Ltd. Dispositif de pressage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04344839A (ja) * 1991-05-18 1992-12-01 Oiles Ind Co Ltd プレス用カム型
JPH07290168A (ja) * 1994-04-25 1995-11-07 Oiles Ind Co Ltd プレス用カム型
US5711180A (en) * 1994-12-27 1998-01-27 Oiles Corporation Pressing cam die
EP0922509A1 (fr) * 1997-11-14 1999-06-16 Umix Co., Ltd. Dispositif de pressage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 198 (M-1398), 19 April 1993 (1993-04-19) & JP 04 344839 A (OILES IND CO LTD), 1 December 1992 (1992-12-01) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03, 29 March 1996 (1996-03-29) & JP 07 290168 A (OILES IND CO LTD), 7 November 1995 (1995-11-07) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1449600A1 (fr) * 2003-02-21 2004-08-25 Sankyo Oilless Industry, Inc. Dispositif à came et procédé pour aligner et fixer un outil
WO2013024072A1 (fr) 2011-08-12 2013-02-21 Qiagen Gmbh Procédé d'isolation d'acides nucléiques
US9695465B2 (en) 2011-08-12 2017-07-04 Qiagen Gmbh Method for isolating nucleic acids
US10808276B2 (en) 2011-08-12 2020-10-20 Qiagen Gmbh Method for isolating nucleic acids
CN102407263A (zh) * 2011-12-06 2012-04-11 奇瑞汽车股份有限公司 一种斜锲机构
CN103537542A (zh) * 2012-07-10 2014-01-29 成都爱信雅克科技有限公司 水平单动斜楔机构
CN106345895A (zh) * 2016-09-30 2017-01-25 安徽江淮汽车股份有限公司 一种侧冲侧翻斜楔机构
CN106345895B (zh) * 2016-09-30 2018-05-04 安徽江淮汽车集团股份有限公司 一种侧冲侧翻斜楔机构

Also Published As

Publication number Publication date
KR20000034882A (ko) 2000-06-26
JP2000140955A (ja) 2000-05-23
EP1000734A3 (fr) 2000-05-31
CA2276700A1 (fr) 2000-05-11
CN1110381C (zh) 2003-06-04
JP3069083B2 (ja) 2000-07-24
BR9904266A (pt) 2000-09-05
CN1253049A (zh) 2000-05-17

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