JPS55103250A - Hammer for forging - Google Patents
Hammer for forgingInfo
- Publication number
- JPS55103250A JPS55103250A JP1240579A JP1240579A JPS55103250A JP S55103250 A JPS55103250 A JP S55103250A JP 1240579 A JP1240579 A JP 1240579A JP 1240579 A JP1240579 A JP 1240579A JP S55103250 A JPS55103250 A JP S55103250A
- Authority
- JP
- Japan
- Prior art keywords
- ram
- port
- air pressure
- valve
- control valve
- 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
- Forging (AREA)
- Control Of Presses (AREA)
Abstract
PURPOSE: To increase the weight of ram and achieve better working accuracy and higher durability of the device by providing the function of transferring the air pressure supplied as the air pressure ram descending to the control valve which supplies ram-ascending air pressure to the ram elevating cylinder.
CONSTITUTION: When the work is placed on a lower die 26 and the operating shaft 18 of a valve control mechanism 16 is lowered, the valve body 14 of a control valve 12 ascends and the ports P3 and P4 communicate until the port P1 closes. Then, the compressed air on the upper side 4a of a ram elevating cylinder 4 flows out to a vent 8 and the ram 3 starts descending by gravity. The flowed-out compressed air reverse-flows to the port P3 of the control valve 12, and is transferred from the port P4 via the port P5 of a change-over valve 27 toward the lower side 4b of the cylinder 4, thus acting downward upon the ram 3. Hence, the ram 3 descends by gravity and at the same time it is accelerated by the air pressure acting downward, causing the work on a lower die 26 to be hammered by an upper die 25.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240579A JPS55103250A (en) | 1979-02-05 | 1979-02-05 | Hammer for forging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240579A JPS55103250A (en) | 1979-02-05 | 1979-02-05 | Hammer for forging |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55103250A true JPS55103250A (en) | 1980-08-07 |
JPS5621499B2 JPS5621499B2 (en) | 1981-05-20 |
Family
ID=11804343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1240579A Granted JPS55103250A (en) | 1979-02-05 | 1979-02-05 | Hammer for forging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103250A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5299489A (en) * | 1991-05-17 | 1994-04-05 | Reo Hydraulic Pierce & Form | Pressure cylinder with low tolerance fit capable of supporting large transverse loads |
USRE34621E (en) * | 1982-09-29 | 1994-05-31 | Lamb Robo, Inc. | Self equalizing piercing machine |
US5865089A (en) * | 1997-09-19 | 1999-02-02 | Langer; John W. | Linear thruster |
US5957029A (en) * | 1997-09-19 | 1999-09-28 | Bimba Manufacturing Co. | Linear thruster |
US6237458B1 (en) | 1998-12-15 | 2001-05-29 | Btm Corporation | Auto equalized dual pierce unit |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58103185U (en) * | 1982-01-06 | 1983-07-13 | 株式会社日立製作所 | Printed circuit board storage case |
JPS59101494U (en) * | 1982-12-25 | 1984-07-09 | 動力炉・核燃料開発事業団 | Heat dissipation device for electronic components |
-
1979
- 1979-02-05 JP JP1240579A patent/JPS55103250A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE34621E (en) * | 1982-09-29 | 1994-05-31 | Lamb Robo, Inc. | Self equalizing piercing machine |
US5299489A (en) * | 1991-05-17 | 1994-04-05 | Reo Hydraulic Pierce & Form | Pressure cylinder with low tolerance fit capable of supporting large transverse loads |
US5865089A (en) * | 1997-09-19 | 1999-02-02 | Langer; John W. | Linear thruster |
US5957029A (en) * | 1997-09-19 | 1999-09-28 | Bimba Manufacturing Co. | Linear thruster |
US6237458B1 (en) | 1998-12-15 | 2001-05-29 | Btm Corporation | Auto equalized dual pierce unit |
Also Published As
Publication number | Publication date |
---|---|
JPS5621499B2 (en) | 1981-05-20 |
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