GB496218A - Hydraulic punch and die units - Google Patents
Hydraulic punch and die unitsInfo
- Publication number
- GB496218A GB496218A GB14541/37A GB1454137A GB496218A GB 496218 A GB496218 A GB 496218A GB 14541/37 A GB14541/37 A GB 14541/37A GB 1454137 A GB1454137 A GB 1454137A GB 496218 A GB496218 A GB 496218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- valve
- liquid
- punches
- punching
- 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
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/002—Drive of the tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
496,218. Punching. MID-WEST PRODUCTION ENGINEERING, Inc. May 25, 1937, No. 14541. Convention date, May 25, 1936. [Class 83 (iv)] In a punching-machine a plurality of adjustable tools are operated by hydraulic means. A pump 1 driven by an electromotor 2 supplies liquid through a pipe 3 to a regulating valve 4 controlled by a rod 10. The punches 36 are secured to rams 28 guided by cross-heads 31 and operated by a plunger 20 in a cylinder 21 by liquid from a pipe 5a for the working stroke and a pipe 6a for the retraction stroke. In punching an automobile fender 46, Fig. 6, a frame 47 supports a plurality of punch units a-f, g, h-j, k-n. The valve 4 through pipes 5, 6, is connected to the cylinders of the separate punch units which are operated simultaneously when the valve control rod 10 is manually displaced. Spring-urged plates 40 surround the punches 36. The control valve 4 comprises a piston valve 11. In the position shown in Fig. 7, liquid from a pipe 3 flows through a pipe 5 to operate the punches and exhaust liquid flows through a pipe 6 and port 14 back to the pump. On the retraction stroke the flow is reversed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US496218XA | 1936-05-25 | 1936-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496218A true GB496218A (en) | 1938-11-25 |
Family
ID=21960791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14541/37A Expired GB496218A (en) | 1936-05-25 | 1937-05-25 | Hydraulic punch and die units |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB496218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1202100B (en) * | 1954-03-29 | 1965-09-30 | Bundy Tubing Co | Device set to a predetermined bending program for bending pipes into the ready-to-install shape |
-
1937
- 1937-05-25 GB GB14541/37A patent/GB496218A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1202100B (en) * | 1954-03-29 | 1965-09-30 | Bundy Tubing Co | Device set to a predetermined bending program for bending pipes into the ready-to-install shape |
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