EP1136151A1 - Coulisseau à auto-centrage - Google Patents

Coulisseau à auto-centrage Download PDF

Info

Publication number
EP1136151A1
EP1136151A1 EP00105369A EP00105369A EP1136151A1 EP 1136151 A1 EP1136151 A1 EP 1136151A1 EP 00105369 A EP00105369 A EP 00105369A EP 00105369 A EP00105369 A EP 00105369A EP 1136151 A1 EP1136151 A1 EP 1136151A1
Authority
EP
European Patent Office
Prior art keywords
cam
slider
cam slider
base
inverted
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.)
Granted
Application number
EP00105369A
Other languages
German (de)
English (en)
Other versions
EP1136151B1 (fr
Inventor
Masahiro Higuchi
Toshiyuki Yarimizu
Shoji Nemoto
Masahiro Shibata
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.)
Sankyo Oilless Industries Inc
Original Assignee
Sankyo Oilless Industries Inc
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 Sankyo Oilless Industries Inc filed Critical Sankyo Oilless Industries Inc
Priority to DE2000612475 priority Critical patent/DE60012475T2/de
Priority to ES00105369T priority patent/ES2222123T3/es
Priority to AT00105369T priority patent/ATE271942T1/de
Priority to EP00105369A priority patent/EP1136151B1/fr
Publication of EP1136151A1 publication Critical patent/EP1136151A1/fr
Application granted granted Critical
Publication of EP1136151B1 publication Critical patent/EP1136151B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

  • the present invention relates to a cam unit for metal mold tools, such as a horizontal cam unit or an inclined cam unit for use in giving a desired bent form to a pressed plate at its selected edge or end to provide a car body shape.
  • a conventional horizontal cam unit comprises a cam driver 10 to be fixed to the upper movable mold tool, a cam slider 11 whose inclined slide surface abuts on the inclined cam surface of the cam driver 10, and a cam base 12 supporting the cam slider 11, and fixed to the lower stationary mold tool.
  • the rising and lowering of the cam driver will make the cam slider 11 to move a predetermined distance right and left.
  • the cam slider 11 has a projection formed on its bottom side.
  • the projection slidably fits in the recess of the cam base 12, and the projection has a return spring 13 fixed to its spring pin rod 11a.
  • the rising and lowering of the cam driver 10 makes the cam slider 11 having a machining tool fixed to its front end to reciprocate right and left, thereby performing a required machining on a pressed plate article.
  • the rising of the cam driver 10 permits the cam slider 11 to return leftward to the original rest position under the influence of the return spring 13.
  • the lower part 11a of the cam slider 11 is sandwiched between the opposite upright portions 12a of the cam base 12, and is fastened to the opposite upright portions 12a by applying retainer pieces 14 both to the side projections 11b of the lower part 11a of the cam slider 11 and the top surfaces of the opposite upright portions 12a, thus providing a guide arrangement which permits the cam slider 11 to move smoothly.
  • the size "b" from the front to rear side, or width of the cam base 12 is much larger than the width "a" of the cam slider 11, and accordingly the weight of the cam unit increases.
  • the sliding surface of the lower part lla of the cam slider is horizontal, and the counter surface of the cam base 12 is horizontal, too. If uneven wearing is caused on the horizontal surfaces of the confronting parts 11 and 12, the overlying part 11 may be inclined somewhat forward or backward, thus causing the moving parts 10 and 11 to be sticky in motion. Also, if it is desired that the pressing force is increased significantly, the sizes of the cam slider 11 and cam base 12 need to be increased accordingly.
  • One object of the present invention is to provide a cam unit which is free of such defects as described above.
  • a cam unit to be mounted to a stationary metal mold tool and a movable metal mold tool for use in effecting a required machining on a pressed article comprising a cam driver to be fixed to the movable metal mold, a cam slider to be driven by the cam driver and a cam base to be fixed to the stationary mold tool for supporting slidably the cam slider, is improved according to the present invention in that it further comprises self-centering means on the sliding surfaces of the cam slider and cam base.
  • the self-centering means may comprise an inverted "V"-shaped section formed on the cam base with the ridge of the inverted “V”-shaped section extending along the center longitudinal line of the cam base, running parallel to the sliding direction in which the cam slider moves, and an inverted “V”-shaped sliding surface formed on the bottom of the cam slider, which inverted “V"-shaped sliding surface rides closely on the inverted "V”-shaped section of the cam base.
  • the cam slider may have the same or substantially same width as the cam base, the width being measured in the direction perpendicular to the sliding direction in which the cam slider moves.
  • the cam slider can be repeatedly moved on the cam base without causing such an uneven wearing as would be experienced in the horizontal-to-horizontal sliding surfaces in the conventional cam unit structure, thus assuring the stable work all the time.
  • the cam slider can have the same width as the cam base, permitting the machining tool attaching surface of the cam slider to be increased significantly in comparison with the conventional cam unit structure, in which the cam slider is sandwiched between the opposite projections standing upright from the cam base. Also, the size and weight of the cam unit can be reduced substantially in comparison with the conventional cam unit.
  • a cam unit 1 comprises a cam driver 10 to be mounted to an upper movable mold tool, a cam slider 2 and a cam base 3 to be mounted to a lower stationary metal mold tool.
  • the cam driver 10 has an inclined cam surface 10a.
  • the cam slider 2 has an inclined surface, and is combined with the cam driver 10 with their inclined surfaces laid on each other, thereby permitting the cam slider 2 to move left or right as a counter action to the rising or lowering of the cam driver 10.
  • the cam base 3 supports the cam slider 2 slidably.
  • the cam base 3 has an inverted "V”-shaped upper surface with its ridge extending along the center longitudinal line of the cam base, running parallel to the sliding direction in which the cam slider 2 moves.
  • the cam slider 2 has an inverted “V”-shaped bottom. The inverted “V”-shaped sliding bottom surface of the cam slider 2 rides closely on the inverted "V"-shaped top section of the cam base 3.
  • cam slider 2 has oblique bottom surface halves 2a and 2b sloping up from its opposite longitudinal edges into its longitudinal center line, thus forming a roof-like sliding surface on its bottom side.
  • the inclined cam surface 2d of the cam slider 2 is slidably laid on the inclined cam surface 10a of the cam driver 10.
  • the cam slider 2 has tow forcedly returning followers 4 bolted to its opposite sides for jerking the cam slider 2 toward its original position subsequent to the cam action.
  • the cam base 3 comprises a base body 3c to be bolted to the lower stationary mold tool, and two guide blocks 3a and 3b parallelarranged, leaving a longitudinal space therebetween, running in the sliding direction (see Fig.3).
  • the guide blocks 3a and 3b has two reinforcement plates 6 bolted to their opposite ends.
  • a spring pin rod 8 for a return spring appears on the reinforcement plate 6.
  • each guide block 3a or 3b has an inclined top surface 3d or 3e, which slopes up from its outer longitudinal edge toward the top center line.
  • the so formed roof-like shape is exactly same as the roof-like shape defined by the oblique bottom surface halves 2a and 2b of the cam slider 2.
  • the self-centering means is provided.
  • the parallel arrangement of two confronting guide blocks 3a and 3b with a given longitudinal space left therebetween makes it possible to reduce substantially the size of the cam base 3 in comparison with the overlying cam slider 2, accordingly permitting the saving of the material and weight of the cam base 3.
  • the size from the front side to rear side, or width of the cam base 3 perpendicular to the direction in which the cam slider 2 slidably moves is substantially equal to that of the overlying cam slider 2.
  • substantially equal is that the minimum difference therebetween is 10 millimeters or below.
  • the rising and descending of the cam driver 10 will make the machining tool bearing cam slider 2 to move slidably on the cam base 3 without fear of the center deviation of the cam slider 2 which, otherwise, would be caused by the wearing of the sliding surfaces of the counter parts 2 and 3; the inverted "V"-shaped sliding surfaces will not cause any deviation of their center ridges even if a significant wearing is caused between the sliding surfaces of the counter parts 2 and 3.
  • the inverted "V"-shaped surfaces of the counter sliding parts 2 and 3 will increase significantly their sliding areas over those of the horizontal surfaces of the counter sliding parts 11 and 12 (Figs.4a and 4b), accordingly increasing the resistance to the pressing force.
  • the machining tool bearing area of the cam slider 2 can be increased by setting its dimension from front to rear side to be equal to the width of the cam base 3, thus permitting the fixing of machining tools of increased size.
  • a cam unit equipped with self-centering means according to the present invention is guaranteed to be free of any decentering of the cam slider even if a significant wearing is caused between the sliding surfaces of the counter sliding parts.
  • the inverted "V"-shaped forms of the counter sliding parts have the effect of increasing the area of the cam unit to which the pressing force is applied, and hence, increasing the resistance to the pressing force applied to the cam unit.
  • the size from the front side to rear side or width of the cam base perpendicular to the direction in which the cam slider moves is substantially equal to that of the cam slider. This permits the machining tool bearing area of the cam slider to be increased significantly.
  • the parallel arrangement of two confronting guide blocks with a given longitudinal space left therebetween makes it possible to reduce the weight of the whole cam unit to approximately one third of the weight of the conventional cam unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Bag Frames (AREA)
EP00105369A 2000-03-17 2000-03-17 Coulisseau à auto-centrage Expired - Lifetime EP1136151B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2000612475 DE60012475T2 (de) 2000-03-17 2000-03-17 Selbstzentrierender Führungsschlitten
ES00105369T ES2222123T3 (es) 2000-03-17 2000-03-17 Unidad de leva equipada con medios de auto-centrado.
AT00105369T ATE271942T1 (de) 2000-03-17 2000-03-17 Selbstzentrierender führungsschlitten
EP00105369A EP1136151B1 (fr) 2000-03-17 2000-03-17 Coulisseau à auto-centrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00105369A EP1136151B1 (fr) 2000-03-17 2000-03-17 Coulisseau à auto-centrage

Publications (2)

Publication Number Publication Date
EP1136151A1 true EP1136151A1 (fr) 2001-09-26
EP1136151B1 EP1136151B1 (fr) 2004-07-28

Family

ID=8168089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105369A Expired - Lifetime EP1136151B1 (fr) 2000-03-17 2000-03-17 Coulisseau à auto-centrage

Country Status (4)

Country Link
EP (1) EP1136151B1 (fr)
AT (1) ATE271942T1 (fr)
DE (1) DE60012475T2 (fr)
ES (1) ES2222123T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1764168A1 (fr) * 2005-09-20 2007-03-21 Fibro GmbH Ensemble coulisseau pour une camme arienne
EP1771263A4 (fr) * 2004-07-27 2010-05-19 Anchor Lamina America Inc Cames étroite aérienne et montée sur matrice
CN102120242A (zh) * 2010-01-08 2011-07-13 三协无油工业株式会社 凸轮装置
EP1197319B2 (fr) † 2000-10-13 2013-02-13 voestalpine Giesserei Linz GmbH Entraînement par coin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484588A1 (fr) * 1990-11-09 1992-05-13 UMIX Co., Ltd. Matrice avec coulisseau
US5904064A (en) * 1997-02-25 1999-05-18 Sankyo Oilless Industry, Inc. Cam assembly for use in a pressing machine
EP0983808A1 (fr) * 1998-08-26 2000-03-08 Oiles Corporation Système de commande à came de glissement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484588A1 (fr) * 1990-11-09 1992-05-13 UMIX Co., Ltd. Matrice avec coulisseau
US5904064A (en) * 1997-02-25 1999-05-18 Sankyo Oilless Industry, Inc. Cam assembly for use in a pressing machine
EP0983808A1 (fr) * 1998-08-26 2000-03-08 Oiles Corporation Système de commande à came de glissement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1197319B2 (fr) † 2000-10-13 2013-02-13 voestalpine Giesserei Linz GmbH Entraînement par coin
EP1771263A4 (fr) * 2004-07-27 2010-05-19 Anchor Lamina America Inc Cames étroite aérienne et montée sur matrice
EP1764168A1 (fr) * 2005-09-20 2007-03-21 Fibro GmbH Ensemble coulisseau pour une camme arienne
CN102120242A (zh) * 2010-01-08 2011-07-13 三协无油工业株式会社 凸轮装置
CN102120242B (zh) * 2010-01-08 2014-06-25 三协无油工业株式会社 凸轮装置

Also Published As

Publication number Publication date
DE60012475D1 (de) 2004-09-02
EP1136151B1 (fr) 2004-07-28
ATE271942T1 (de) 2004-08-15
ES2222123T3 (es) 2005-02-01
DE60012475T2 (de) 2005-01-13

Similar Documents

Publication Publication Date Title
EP0983808A1 (fr) Système de commande à came de glissement
JPH0244113B2 (fr)
KR101772752B1 (ko) 부스바용 펀칭장치
EP1136151A1 (fr) Coulisseau à auto-centrage
JPH081243A (ja) プレス金型装置
CN106180348A (zh) 用于加工连续金属型材的加工站
AU2003217498B2 (en) Apparatus for forming groove used in cutting blade
KR20200125984A (ko) 조정 가능한 안내 장치를 가진 웨지 구동부
KR20160129901A (ko) 공구 이송대
JP3677931B2 (ja) 搬送機構を備えた部品加工装置
JP3968806B2 (ja) プレス金型用カム
JP2007125619A (ja) プレス金型用カム
US6918333B2 (en) Retainer device for a press punch
JPH04167929A (ja) 突上げ塑性加工装置
JP2002178087A (ja) 圧造成形機
JPH0428650Y2 (fr)
KR20090029976A (ko) 스테이지장치
JPH10286628A (ja) ワークサポート装置
JP2002103394A (ja) 射出成形装置
JPH0584597A (ja) スクラツプのプレス・シヤー
CN210679550U (zh) 一种用于二次顶出的结构
CN223938566U (zh) 一种钉扣机限位结构
CN222200285U (zh) 一种模具定制加工用可调节快速夹持机构
US4653547A (en) Guide for parts of a weaving machine
JP2000135526A (ja) カムユニット

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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011214

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20030130

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040728

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040728

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040728

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040728

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040728

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60012475

Country of ref document: DE

Date of ref document: 20040902

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041028

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041028

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041028

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2222123

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050317

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050317

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050317

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050331

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050429

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110401

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110329

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120317

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120317

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120402

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190325

Year of fee payment: 20

Ref country code: DE

Payment date: 20190321

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20190321

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20190418

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60012475

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 271942

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200317

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20200903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200318