JPS57118824A - Manufacture of cylinder - Google Patents
Manufacture of cylinderInfo
- 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
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.
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)
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 |
-
1981
- 1981-01-13 JP JP56002683A patent/JPS57118824A/en active Pending
Cited By (1)
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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