GB1088852A - Hydraulic press of the pull-down type - Google Patents
Hydraulic press of the pull-down typeInfo
- Publication number
- GB1088852A GB1088852A GB534864A GB534864A GB1088852A GB 1088852 A GB1088852 A GB 1088852A GB 534864 A GB534864 A GB 534864A GB 534864 A GB534864 A GB 534864A GB 1088852 A GB1088852 A GB 1088852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crosshead
- billet
- tool
- piercing
- holder
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/04—Piercing presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/211—Press driving devices
Abstract
1,088,852. Billet piercing. LOEWY ENGINEERING CO. Ltd. Jan. 15, 1965 [Feb. 7, 1964], No. 5348/64. Heading B3H. A hydraulic piercing press comprises a stationary base 10 supporting a holder 11 for the workpiece B, a piercing tool 42 mounted on a movable upper crosshead 40 connected by columns 43, 44 to a lower movable crosshead 30, a movable back up crosshead 20, disposed between the base and the lower crosshead 30 and carrying a back-up stem 16 for supporting the workpiece during piercing, and a hydraulic drive 31, 32 for the piercing tool arranged partly on the back-up crosshead 20 and partly on the lower crosshead 30. The billet holder 11 is slidable transversely on rails 12, 13 from a charging position into the press axis. Billet B is first upset by a tool 52 mounted on an intermediate crosshead 50 which moves initially with the piercing tool due to the insertion of hydraulically operated gags 53 actuated by hydraulic rams (54), Fig. 2 (not shown). The gags are then withdrawn and the piercing tool 42 is pressed through the billet by pressure liquid supplied to four cylinders 31, carried by the lower crosshead 30, through hollow pistons 32 carried by the back-up crosshead 20; this ensures that the back-up stem 16 is pressed upwardly into surrounding die 15 during piercing. Finally connectors 45 on the moving columns 43 engage sleeves 49 abutting the back-up crosshead 20 to lower it thus removing the back-up stem and allowing the tool 42 to punch out the remaining web of billet metal. The tool 42 is then raised by retracting rams 37, 38 whilst the billet is held down by tool 52 under pressure from two hydraulic rams 56. Finally the connectors 45 engage the crosshead 50 to raise the tool 52; this is assisted by pressurization of cylinders 58. Billet holder is then moved to an inoperative position where the pierced billet is ejected, the holder 11 cleaned and lubricated, and a new billet inserted. The back-up crosshead 20 may be raised independently by hydraulic rams 23, 24, Fig. 4 (not shown), or it may be lowered against stops 29 by hydraulic rams 26, 27.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB534864A GB1088852A (en) | 1964-02-07 | 1964-02-07 | Hydraulic press of the pull-down type |
| DE1965L0049900 DE1300499B (en) | 1964-02-07 | 1965-02-05 | Hydraulic punch press with downward traction drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB534864A GB1088852A (en) | 1964-02-07 | 1964-02-07 | Hydraulic press of the pull-down type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1088852A true GB1088852A (en) | 1967-10-25 |
Family
ID=9794417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB534864A Expired GB1088852A (en) | 1964-02-07 | 1964-02-07 | Hydraulic press of the pull-down type |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1300499B (en) |
| GB (1) | GB1088852A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379398A (en) * | 1980-06-12 | 1983-04-12 | Kabushiki Kaisha Kobe Seiko Sho | Pull-back type indirect extrusion press |
| CN106903250B (en) * | 2017-02-17 | 2018-08-28 | 清华大学 | A kind of perforation press |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732738A (en) * | 1956-01-31 | Hydraulic press | ||
| AT142540B (en) * | 1934-10-11 | 1935-08-10 | Alfina Immobilien Finanzierung | Hydraulic press for punching tube blanks. |
| GB729248A (en) * | 1951-12-22 | 1955-05-04 | Hydropress Inc | Billet piercing press |
-
1964
- 1964-02-07 GB GB534864A patent/GB1088852A/en not_active Expired
-
1965
- 1965-02-05 DE DE1965L0049900 patent/DE1300499B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1300499B (en) | 1969-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4365497A (en) | Intermediate frame type indirect extrusion press | |
| US3528275A (en) | Method and apparatus for extruding hollow articles | |
| US2299105A (en) | Method and apparatus for forging billets | |
| GB1224259A (en) | Improvements in upsetting or forging machines | |
| US4073176A (en) | Piercing and flanging apparatus | |
| US3019894A (en) | Extrusion of metals | |
| GB1088852A (en) | Hydraulic press of the pull-down type | |
| US3217527A (en) | Metal extrusion press with mandrel cooling device | |
| US2491897A (en) | Closure plug | |
| US2732738A (en) | Hydraulic press | |
| US4326399A (en) | Extrusion press operating by the indirect method | |
| US2396108A (en) | Metalworking press | |
| US2534292A (en) | Hydraulic punch and stripper | |
| US3370449A (en) | Billet extrusion presses | |
| US3087362A (en) | Apparatus for extruding lateral nozzles on cylindrical body | |
| US3059509A (en) | Billet center punching apparatus | |
| US1948400A (en) | Metal extrusion press | |
| US3323347A (en) | Hydraulic press of the pull-down type | |
| US3507142A (en) | Power presses | |
| SU824881A3 (en) | Device for pressure working of metallic billets | |
| US3653247A (en) | Extrusion press | |
| US2594009A (en) | Inverted extrusion apparatus | |
| US3528269A (en) | Method of extrusion with liquidpressure and means for carrying out the method | |
| US4570473A (en) | Extrusion press | |
| US536278A (en) | Signors to duisbtjrger eisen |