GB750282A - Fluid-pressure actuated apparatus - Google Patents
Fluid-pressure actuated apparatusInfo
- Publication number
- GB750282A GB750282A GB5243/54A GB524354A GB750282A GB 750282 A GB750282 A GB 750282A GB 5243/54 A GB5243/54 A GB 5243/54A GB 524354 A GB524354 A GB 524354A GB 750282 A GB750282 A GB 750282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- rams
- arm
- correcting
- pivot
- 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
- B21J9/10—Drives for forging presses
- B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/22—Drives for hammers; Transmission means therefor for power hammers
- B21J7/34—Drives for hammers; Transmission means therefor for power hammers operating both the hammer and the anvil, so-called counter-tup
-
- 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
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
750,282. Forging-presses. CHAMBERS-BURG ENGINEERING CO. Feb. 23, 1954 [May 26, 1953], No. 5243/54. Class 83 (4). [Also in Group XXVI] A fluid-pressure operated apparatus particularly an impact forging press, has a pair of coaxial rams 13, 14, movable towards and away from each other by pressure fluid supplied to their respective cylinders 11, 12, and means 56, 57 are provided for detecting lack of synchronism in the movements of the rams and for controlling interconnected correcting valves 35, 38 which vary differentially the flow of pressure fluid to and/or from the cylinders so as to restore synchronism. The press rams carry doubleacting pistons 15, 16 operated by compressed air distributed to either end of the cylinders through passages 23, 24 by distributing valves 27, 28 remotely controlled by a lever 41 through transmitters 39, 40 and receivers 42, 43, which may be hydraulic or electric. A one-way valve 30 communicating with the passage 23 through duct 29 allows the air to enter the outer end of each cylinder to initiate the working stroke and permits air to be trapped in the end of the cylinder to cushion the return stroke. Throttle valves 34, 37 in the supply lines are remotely controlled by a lever 46 through transmitters 44, 45 and receivers 47, 48; these valves regulate the speed of the rams. Forging dies 19, 20 are mounted respectively in heads 17, 18 having cam surfaces 60, 61, co-operating with the detecting levers 56, 57 pivoted on fixed pivots 58, 59. These levers are connected by spring-loaded links 62, 63 to the opposite ends of a rocker arm 54 pivoted at 55 on a swinging arm 50 mounted on a stationary pivot 51 and connected at 52 to a link 49 interconnecting the correcting valves 35, 38. When the rams are in phase the rocker arm 54 moves about its pivot 55 without disturbing the arm 50 but if the rams are out of phase the forces on the rocker arm are unbalanced and cause the arm 50 to swing about its pivot 51 thereby to regulate the correcting valves 35, 38, and restore synchronism. These correcting valves may be in the inlet or exhaust passages 23 or 24 or separate interconnected valves may be provided in both the inlet and exhaust passages, Fig. 8 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US750282XA | 1953-05-26 | 1953-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB750282A true GB750282A (en) | 1956-06-13 |
Family
ID=22123078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5243/54A Expired GB750282A (en) | 1953-05-26 | 1954-02-23 | Fluid-pressure actuated apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB750282A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007059723A1 (en) * | 2005-11-25 | 2007-05-31 | Beab Brandenburg/H. Engineering & Anlagenbau Gmbh | Synchronizing device for a group of hydraulic working cylinders |
WO2009021500A1 (en) * | 2007-08-16 | 2009-02-19 | Hegenscheidt-Mfd Gmbh & Co. Kg | Hydraulic wheel set press |
WO2013131394A1 (en) * | 2012-03-05 | 2013-09-12 | 南通天田机床有限公司 | Novel forging and charging/discharging two-purpose machine |
-
1954
- 1954-02-23 GB GB5243/54A patent/GB750282A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007059723A1 (en) * | 2005-11-25 | 2007-05-31 | Beab Brandenburg/H. Engineering & Anlagenbau Gmbh | Synchronizing device for a group of hydraulic working cylinders |
WO2009021500A1 (en) * | 2007-08-16 | 2009-02-19 | Hegenscheidt-Mfd Gmbh & Co. Kg | Hydraulic wheel set press |
US9205516B2 (en) | 2007-08-16 | 2015-12-08 | Hegenscheidt-Mfd Gmbh & Co. Kg | Hydraulic wheel set press |
WO2013131394A1 (en) * | 2012-03-05 | 2013-09-12 | 南通天田机床有限公司 | Novel forging and charging/discharging two-purpose machine |
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