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JPS57181737A - Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference - Google Patents

Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference

Info

Publication number
JPS57181737A
JPS57181737A JP6454581A JP6454581A JPS57181737A JP S57181737 A JPS57181737 A JP S57181737A JP 6454581 A JP6454581 A JP 6454581A JP 6454581 A JP6454581 A JP 6454581A JP S57181737 A JPS57181737 A JP S57181737A
Authority
JP
Japan
Prior art keywords
punch
product
parts
semi
reduced
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
JP6454581A
Other languages
Japanese (ja)
Other versions
JPS6341666B2 (en
Inventor
Kinshiro Murakami
Takashi Nakano
Shuichi Matsunaga
Nobuyuki Ishinaga
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.)
Aida Engineering Ltd
Original Assignee
Aida Engineering 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 Aida Engineering Ltd filed Critical Aida Engineering Ltd
Priority to JP6454581A priority Critical patent/JPS57181737A/en
Publication of JPS57181737A publication Critical patent/JPS57181737A/en
Publication of JPS6341666B2 publication Critical patent/JPS6341666B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
    • B21K1/765—Outer elements of coupling members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To obtain a product genrating no excess metal after forming, with good yield of a material, by dividing a punch for forge-working a semi-product having a hollowed part whose opening part has not been reduced, into plural parts, and also seaming each divided piece tightly. CONSTITUTION:On the outside circumference of a punch guide 13 on a bolster of a press machine, moving punch groups 14, 15 which have been divided into plural parts in parallel with the axial direction and are different in length in each leg part are placed alternately. They can be moved along the guide 13, and also punch parts 14a, 15a can be rocked freely in the radial direction. When a semi-product 12 is supplied to the punch 15 in an ascending state in the figure and a pin 38 is made to descend as the press machine slides, the punch groups 14, 15 are depressed together with moving members 19, 26, height of the punches becomes in coincidence in a state that they have been lowered to the lowest position, and a desired shape is obtained by collection of all the punches. Also, a die 34 goes down, the semi-product 12 is reduced by the outside of the punch grups 14, 15, and the inside surface of the hollowed part is formed to a desired shape.
JP6454581A 1981-04-28 1981-04-28 Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference Granted JPS57181737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6454581A JPS57181737A (en) 1981-04-28 1981-04-28 Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6454581A JPS57181737A (en) 1981-04-28 1981-04-28 Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference

Publications (2)

Publication Number Publication Date
JPS57181737A true JPS57181737A (en) 1982-11-09
JPS6341666B2 JPS6341666B2 (en) 1988-08-18

Family

ID=13261294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6454581A Granted JPS57181737A (en) 1981-04-28 1981-04-28 Manufacturing device of parts with opening of reduced smaller diameter than inner part extending over whole circumference

Country Status (1)

Country Link
JP (1) JPS57181737A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001529A1 (en) * 1982-10-14 1984-04-26 Pfd Ltd Manufacture of article having undercut internal surface
US4554817A (en) * 1983-05-10 1985-11-26 Trw Inc. Valve sleeve shaping method
JPS60240348A (en) * 1984-05-14 1985-11-29 Aida Eng Ltd Die cushion device of press machine
JPS61501831A (en) * 1984-02-18 1986-08-28 ピ−エフデイ・リミテツド Jig and manufacturing method for manufacturing products with depressions
JPS6371939U (en) * 1986-10-29 1988-05-13
JPS63224833A (en) * 1987-03-12 1988-09-19 Aida Eng Ltd Forming die
US5001920A (en) * 1987-07-03 1991-03-26 Aida Engineering, Ltd. Method and apparatus for manufacturing a constant velocity joint and the like
EP0421144A2 (en) * 1989-10-05 1991-04-10 SCHÖNEWEISS & CO. GMBH Expanding tool
EP0421143A2 (en) * 1989-10-05 1991-04-10 SCHÖNEWEISS & CO. GMBH Expanding tool for a shaping device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501857A (en) * 1982-10-14 1984-11-08 ピ−　エフ　デイ−・リミテツド Manufacture of articles with undercut inner surfaces
WO1984001529A1 (en) * 1982-10-14 1984-04-26 Pfd Ltd Manufacture of article having undercut internal surface
US4554817A (en) * 1983-05-10 1985-11-26 Trw Inc. Valve sleeve shaping method
JPS61501831A (en) * 1984-02-18 1986-08-28 ピ−エフデイ・リミテツド Jig and manufacturing method for manufacturing products with depressions
JPS60240348A (en) * 1984-05-14 1985-11-29 Aida Eng Ltd Die cushion device of press machine
JPH0510997Y2 (en) * 1986-10-29 1993-03-17
JPS6371939U (en) * 1986-10-29 1988-05-13
JPS63224833A (en) * 1987-03-12 1988-09-19 Aida Eng Ltd Forming die
JPH0337808B2 (en) * 1987-03-12 1991-06-06 Aida Eng Ltd
US5001920A (en) * 1987-07-03 1991-03-26 Aida Engineering, Ltd. Method and apparatus for manufacturing a constant velocity joint and the like
EP0421144A2 (en) * 1989-10-05 1991-04-10 SCHÖNEWEISS & CO. GMBH Expanding tool
EP0421143A2 (en) * 1989-10-05 1991-04-10 SCHÖNEWEISS & CO. GMBH Expanding tool for a shaping device
EP0421143A3 (en) * 1989-10-05 1991-10-09 Schoeneweiss & Co. Gmbh Expanding tool for a shaping device
EP0421144A3 (en) * 1989-10-05 1991-10-09 Schoeneweiss & Co. Gmbh Expanding tool

Also Published As

Publication number Publication date
JPS6341666B2 (en) 1988-08-18

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