JPS5656732A - Reverse drawing die device - Google Patents
Reverse drawing die deviceInfo
- Publication number
- JPS5656732A JPS5656732A JP13111179A JP13111179A JPS5656732A JP S5656732 A JPS5656732 A JP S5656732A JP 13111179 A JP13111179 A JP 13111179A JP 13111179 A JP13111179 A JP 13111179A JP S5656732 A JPS5656732 A JP S5656732A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- work
- die
- same
- pad
- 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
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To press the work of a convex curved surface to a die and reverse drawing the same in one process by means of a punch, by providing a punch ring to the circumference on the punch side at the time of reverse drawing said work.
CONSTITUTION: First, a punch holder 17 is moved upward to detach an insert pad 28 and a punch ring 29 from a die 4. Next, the work W is placed on knock-out pins 13, 14 in such a way that its convex curved face side opposes to a punch 20. Thence, when the punch holder 17 is lowered, the insert pad 28 and punch ring 29 contact the convex curved face side of the work W and position the same. When it is lowered further, a spank rod 22 presses the rod 7 which in turn lowers a cushion pad 6, causing the knock-out pins 13, 14 to descend from the surface of the die 4. Following to which, a spring 26 springs a pad base 25 downward and the insert pad 28 grasps the work W between the same and the die 4. Thence, the punch ring 29 deforms the work W to the surface shape of the die 4 by the elastic force of a spring 33; at the same time, the work W is pulled downward by the descending of a punch 20, whereby drawing is accomplished.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54131111A JPS5855848B2 (en) | 1979-10-11 | 1979-10-11 | Mold device for forming reverse markings on helmet-shaped workpieces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54131111A JPS5855848B2 (en) | 1979-10-11 | 1979-10-11 | Mold device for forming reverse markings on helmet-shaped workpieces |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5656732A true JPS5656732A (en) | 1981-05-18 |
JPS5855848B2 JPS5855848B2 (en) | 1983-12-12 |
Family
ID=15050233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54131111A Expired JPS5855848B2 (en) | 1979-10-11 | 1979-10-11 | Mold device for forming reverse markings on helmet-shaped workpieces |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5855848B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100339167C (en) * | 2003-06-23 | 2007-09-26 | 日高精机株式会社 | Method for manufacturing cooling fin of heat exchanger and its die apparatus |
CN104438949A (en) * | 2014-12-22 | 2015-03-25 | 靖江市同安汽车配件制造有限公司 | Train damping bracket machining technology |
CN104624794A (en) * | 2014-12-08 | 2015-05-20 | 河北汉光重工有限责任公司 | Drawing die made from permalloy and used for shielding cover |
CN105642725A (en) * | 2016-01-15 | 2016-06-08 | 中国核动力研究设计院 | Punch forming technology of irradiation monitoring pipe half groove shell shaped like Chinese character 'ji' |
CN110722044A (en) * | 2019-10-18 | 2020-01-24 | 芜湖创挚汽车科技有限公司 | Machining process for preventing workpiece with depth from cracking during machining |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0720253U (en) * | 1993-09-20 | 1995-04-11 | 啓人 松井 | Mold cleaning machine |
-
1979
- 1979-10-11 JP JP54131111A patent/JPS5855848B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100339167C (en) * | 2003-06-23 | 2007-09-26 | 日高精机株式会社 | Method for manufacturing cooling fin of heat exchanger and its die apparatus |
CN104624794A (en) * | 2014-12-08 | 2015-05-20 | 河北汉光重工有限责任公司 | Drawing die made from permalloy and used for shielding cover |
CN104438949A (en) * | 2014-12-22 | 2015-03-25 | 靖江市同安汽车配件制造有限公司 | Train damping bracket machining technology |
CN105642725A (en) * | 2016-01-15 | 2016-06-08 | 中国核动力研究设计院 | Punch forming technology of irradiation monitoring pipe half groove shell shaped like Chinese character 'ji' |
CN110722044A (en) * | 2019-10-18 | 2020-01-24 | 芜湖创挚汽车科技有限公司 | Machining process for preventing workpiece with depth from cracking during machining |
Also Published As
Publication number | Publication date |
---|---|
JPS5855848B2 (en) | 1983-12-12 |
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