IE32208L - Deforming sheet metal. - Google Patents
Deforming sheet metal.Info
- Publication number
- IE32208L IE32208L IE680891A IE89168A IE32208L IE 32208 L IE32208 L IE 32208L IE 680891 A IE680891 A IE 680891A IE 89168 A IE89168 A IE 89168A IE 32208 L IE32208 L IE 32208L
- Authority
- IE
- Ireland
- Prior art keywords
- conduit
- ram
- valve
- pressure
- correcting device
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
- B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0272—Deflection compensating means
-
- 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
- B30B15/245—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 using auxiliary cylinder and piston means as actuating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
- B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Control Of Presses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1,195,448. Deforming metal sheets.
PROMECAM SISSON-LEHMANN. 26 July, 1968 [26 July, 1967; 11 June, 1968], No. 35700/68.
Heading B3E and B3W.
A machine for deforming sheet metal such as a shearing machine or a folding press comprises a fixed bolster 2, a moving bolster 3 and a fixed frame 1 having a pump unit for supplying fluid pressure for operating at least one thrust ram 4, the movement of the moving bolster 3 being controlled by a synchronizing device which maintains the bolsters in a predetermined relative angular position by the action of sensors 5 which detect angular deviations from this predetermined angular position and actuate a pressure medium distributor valve 7 which feeds the synchronizing device with fluid pressure, the sensor including a correcting device 26 which is actuable to modify the action of the valve 7 so as to compensate differences in elastic deformations under load of lateral walls 1c and 1d which support the bolsters.
An inclination of the moving bolster 3 in the counterclockwise direction will create a high pressure in conduit 22a of the sensor circuit and a low pressure in conduit 23a.
This pressure difference is transmitted to the correcting device 26 and forces piston 28 downwards.
The movement of the piston 28 acting through a cable 10 pulls the valve 7 downwards so that conduit 23c is connected to discharge while conduit 22c is connected to the feed supply of the thrust rams 4.
The two sensor rams which have opposite directions of action, then produce a couple in the clockwise direction.
Microswitches 34 and 35 control the correcting device 26 so that the operation of the machine is stopped as soon as the difference in the deformations of side walls 1c and 1d reach a predetermined limit.
A modification of the correcting device comprises a ram 38a, which is fed by conduit 23c, and ram 38b fed by conduit 22c which are connected by a pivotable lever 39.
The pressure difference, created by counterclockwise inclination of the moving bolster 3 in the conduits 22c and 23c causes a lever 40 connected to the ram 38b to pull the valve 7 downwards via the cable 10.
(From GB1195448 A)
[FR1539817A]
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR115702A FR1539817A (en) | 1967-07-26 | 1967-07-26 | Hydraulic machine for deformation of metal sheets |
FR154510A FR95083E (en) | 1967-07-26 | 1968-06-11 | Hydraulic machine for deformation of sheet metals. |
Publications (2)
Publication Number | Publication Date |
---|---|
IE32208L true IE32208L (en) | 1969-01-26 |
IE32208B1 IE32208B1 (en) | 1973-05-16 |
Family
ID=26178403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE891/68A IE32208B1 (en) | 1967-07-26 | 1968-07-24 | Improvements in or relating to machines for deforming sheet metal |
Country Status (14)
Country | Link |
---|---|
US (1) | US3550425A (en) |
AT (1) | AT286747B (en) |
BE (1) | BE717792A (en) |
CH (1) | CH516355A (en) |
DK (1) | DK137949B (en) |
ES (1) | ES356803A1 (en) |
FR (2) | FR1539817A (en) |
GB (1) | GB1195448A (en) |
IE (1) | IE32208B1 (en) |
IL (1) | IL30366A (en) |
LU (1) | LU56479A1 (en) |
NL (1) | NL156963B (en) |
NO (1) | NO128751B (en) |
SE (1) | SE355512B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518232B1 (en) * | 1969-09-12 | 1976-03-15 | ||
US3914975A (en) * | 1970-12-25 | 1975-10-28 | Amada Co Ltd | Hydraulic press brake |
US3702558A (en) * | 1971-09-09 | 1972-11-14 | Niagara Machine & Tool Works | Deflection compensating press brake die support |
DE2525391C3 (en) * | 1975-06-06 | 1986-10-23 | Peddinghaus, Rolf, Dipl.-Ing., 5828 Ennepetal | Pressure medium-operated scissors, punch or the like. machine |
PT68274A (en) * | 1978-07-11 | 1978-08-01 | A A Ribeiro De Almeida | Device applicable to presses and metal bending presses to syncronize the movements of the hydraulic cylinders and control slider cross member |
DE2919012A1 (en) * | 1979-05-11 | 1980-11-20 | Schloemann Siemag Ag | OVERLOAD PROTECTION ON HYDRAULIC FORMING PRESSES, IN PARTICULAR SHEET FORMING PRESSES |
GB2076324B (en) * | 1980-05-26 | 1985-06-19 | Amada Co Ltd | Hydraulic presses |
US4321819A (en) * | 1980-07-23 | 1982-03-30 | Dyneer Corporation | Press construction |
FR2507507B1 (en) * | 1981-06-16 | 1986-07-04 | Promecan Sisson Lehmann | DEVICE FOR BOMBING A TOOL HOLDER OF A FOLDING PRESS OR THE LIKE |
US4580434A (en) * | 1983-11-14 | 1986-04-08 | Cincinnati Incorporated | Deflection compensating assembly for a press brake |
US5067340A (en) * | 1988-05-05 | 1991-11-26 | Macgregor Donald C | Precision press brake |
CH680773A5 (en) * | 1989-09-11 | 1992-11-13 | Beyeler Machines Sa | |
FR2655907B1 (en) * | 1989-12-19 | 1993-07-30 | Plazenet Jean | HYDRAULIC BENDING PRESS WITH MOBILE LOWER APRON. |
DE4235971C1 (en) * | 1992-10-26 | 1994-04-07 | M & S Brugg Ag Brugg | Press brake |
JPH08108957A (en) * | 1994-10-07 | 1996-04-30 | Shikoku Kakoki Co Ltd | Tape connecting device |
CN112808845B (en) * | 2020-12-19 | 2022-06-24 | 爱驰威汽车零部件(盐城)有限公司 | Side impact balancing device for automobile shell parts |
-
1967
- 1967-07-26 FR FR115702A patent/FR1539817A/en not_active Expired
-
1968
- 1968-06-11 FR FR154510A patent/FR95083E/en not_active Expired
- 1968-07-08 BE BE717792D patent/BE717792A/xx unknown
- 1968-07-12 LU LU56479D patent/LU56479A1/xx unknown
- 1968-07-15 CH CH1053768A patent/CH516355A/en not_active IP Right Cessation
- 1968-07-15 IL IL30366A patent/IL30366A/en unknown
- 1968-07-20 ES ES356803A patent/ES356803A1/en not_active Expired
- 1968-07-23 NO NO02894/68A patent/NO128751B/no unknown
- 1968-07-23 AT AT714068A patent/AT286747B/en not_active IP Right Cessation
- 1968-07-24 US US747330A patent/US3550425A/en not_active Expired - Lifetime
- 1968-07-24 IE IE891/68A patent/IE32208B1/en unknown
- 1968-07-25 NL NL6810532.A patent/NL156963B/en unknown
- 1968-07-25 DK DK360768AA patent/DK137949B/en unknown
- 1968-07-26 GB GB35700/68A patent/GB1195448A/en not_active Expired
- 1968-07-26 SE SE10260/68A patent/SE355512B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1195448A (en) | 1970-06-17 |
NL156963B (en) | 1978-06-15 |
NL6810532A (en) | 1969-01-28 |
IL30366A0 (en) | 1968-09-26 |
LU56479A1 (en) | 1968-10-24 |
FR95083E (en) | 1970-06-19 |
US3550425A (en) | 1970-12-29 |
DE1752860B2 (en) | 1975-07-17 |
DK137949B (en) | 1978-06-12 |
FR1539817A (en) | 1968-09-20 |
BE717792A (en) | 1968-12-16 |
SE355512B (en) | 1973-04-30 |
CH516355A (en) | 1971-12-15 |
IE32208B1 (en) | 1973-05-16 |
ES356803A1 (en) | 1970-06-01 |
IL30366A (en) | 1972-07-26 |
DE1752860A1 (en) | 1971-10-07 |
NO128751B (en) | 1974-01-07 |
DK137949C (en) | 1978-11-06 |
AT286747B (en) | 1970-12-28 |
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