JPS57118824A - Manufacture of cylinder - Google Patents

Manufacture of cylinder

Info

Publication number
JPS57118824A
JPS57118824A JP56002683A JP268381A JPS57118824A JP S57118824 A JPS57118824 A JP S57118824A JP 56002683 A JP56002683 A JP 56002683A JP 268381 A JP268381 A JP 268381A JP S57118824 A JPS57118824 A JP S57118824A
Authority
JP
Japan
Prior art keywords
jig
shaft
product
tip
length
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.)
Pending
Application number
JP56002683A
Other languages
Japanese (ja)
Inventor
Sumio Miki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56002683A priority Critical patent/JPS57118824A/en
Publication of JPS57118824A publication Critical patent/JPS57118824A/en
Pending legal-status Critical Current

Links

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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers

Landscapes

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

Abstract

PURPOSE:To form a cylindrical product with high precision, by punch-forming a blank cylindrical material by using a rotary core shaft, and continuing the punch-forming again when the tip of the formed cylinder reaches the coaxial fixed jig, after resetting the tip of a formed cylinder to a fixed jig. CONSTITUTION:A rotary core shaft 1, having a length shorter than that of a product, is fixed to a main body of working machine 2, and a fixed jig 3 is installed coaxially at a distance apart from the shaft 1. The sum of the length of shaft 1 and the length from the tip of shaft 1 to the jig 3 is made equal to the length of a product. A cylindrical blank material 4 is attached to the tip of the shaft 1 and is punch-formed into a cylindrical product 4a by a forming roller 5 and; the tip of the product 4a reaches the jig 3. At this time, the blank material 4 is replaced to be attached to the jig 3 so as to be punch-formed again by the rollers 5. By this way, the final product is formed for the length from the jig 3 to the root of the shaft 1.
JP56002683A 1981-01-13 1981-01-13 Manufacture of cylinder Pending JPS57118824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002683A JPS57118824A (en) 1981-01-13 1981-01-13 Manufacture of cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002683A JPS57118824A (en) 1981-01-13 1981-01-13 Manufacture of cylinder

Publications (1)

Publication Number Publication Date
JPS57118824A true JPS57118824A (en) 1982-07-23

Family

ID=11536087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002683A Pending JPS57118824A (en) 1981-01-13 1981-01-13 Manufacture of cylinder

Country Status (1)

Country Link
JP (1) JPS57118824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018500173A (en) * 2014-11-28 2018-01-11 レプコン・マシン・アンド・トゥール・インダストリー・アンド・トレード・インコーポレイテッド Apparatus and method for squeezing a workpiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018500173A (en) * 2014-11-28 2018-01-11 レプコン・マシン・アンド・トゥール・インダストリー・アンド・トレード・インコーポレイテッド Apparatus and method for squeezing a workpiece

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