GB1081820A - Improvements in or relating to piercing tools - Google Patents
Improvements in or relating to piercing toolsInfo
- Publication number
- GB1081820A GB1081820A GB2750565A GB2750565A GB1081820A GB 1081820 A GB1081820 A GB 1081820A GB 2750565 A GB2750565 A GB 2750565A GB 2750565 A GB2750565 A GB 2750565A GB 1081820 A GB1081820 A GB 1081820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- punch
- holder
- punches
- plate
- punchholder
- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/246—Selection of punches
Abstract
1,081,820. Punches. GENERAL ELECTRIC CO. Ltd., and R. D. RUNCIMAN. June 29, 1966 [June 29, 1965], No. 27505/65. Heading B3W. A piercing tool 1 for simultaneously punching a plurality of holes comprises a multiplicity of punches 6, each supported from a punch-holder 4 so as to be movable relative to the punch-holder in the direction of the axis of the hole made by that punch, and a removable key plate 7 adapted, when fixed to the punch-holder, to constrain the movement of selected punches so that only the selected punches are effective. The punch-holder 4 has a recess 5 which extends into the block from the upper face and from one side and a counter-sunk hole to receive each punch. The keyplate 7 rests on shoulders 9 and has a hole corresponding to each punch. Studs 8 are inserted in selected holes according to the desired hole pattern. The keyplate is retained by a block 10 and a plate 11. The punchholder is mounted on the ram 12 of a press, and as the ram descends those punches which are not constrained by studs recede into the punch-holder. A plate 2 which acts as a holddown during punching is acted on by the punchholder through rubber pads 16. On the return stroke the plate 2 engages stop-nuts 22 on posts 18 and acts as a stripper. In a modification the key plate comprises two thin plates, one having a matrix of holes corresponding to the punchholder and the other being plain. Countersunk headed studs in the required positions are held in place by screwing the plates together. The tool is for perforating printed circuit boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2750565A GB1081820A (en) | 1965-06-29 | 1965-06-29 | Improvements in or relating to piercing tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2750565A GB1081820A (en) | 1965-06-29 | 1965-06-29 | Improvements in or relating to piercing tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1081820A true GB1081820A (en) | 1967-09-06 |
Family
ID=10260662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2750565A Expired GB1081820A (en) | 1965-06-29 | 1965-06-29 | Improvements in or relating to piercing tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1081820A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3512441A (en) * | 1968-05-14 | 1970-05-19 | Hudson Machine & Tool Corp | Adjustable gang slitter |
| DE3109862A1 (en) * | 1981-03-14 | 1982-10-14 | Loewe Opta Gmbh, 8640 Kronach | Punching tool with a plurality of punches for the simultaneous piercing of workpieces in the form of boards |
| EP0108935A2 (en) * | 1982-11-06 | 1984-05-23 | Trumpf GmbH & Co | Stamping machine having a multiple punch |
| ES2204254A1 (en) * | 2001-10-31 | 2004-04-16 | Pont-Ferrat M.C.I., S.L. | Single-acting or double-acting matrix for punching of printed circuit boards on one or both sides, has plate holder caps and cap striking plate, which are positioned at bottom of matrix, and are bordered peripherally by cutting outer ring |
| CN107282785A (en) * | 2017-07-17 | 2017-10-24 | 无锡微研股份有限公司 | One kind is extended punch-pin Rapid adjustment mechanism |
| CN109226462A (en) * | 2018-09-29 | 2019-01-18 | 嘉兴正野新材料有限公司 | A kind of adjustable punching press grinding tool of motor gear |
| CN110523841A (en) * | 2019-09-03 | 2019-12-03 | 成都宏明双新科技股份有限公司 | A kind of progressive die impact forming method of intensive small sircle hole |
| CN113664912A (en) * | 2021-08-18 | 2021-11-19 | 江苏杰邦电子科技有限公司 | Automatic perforating device is used in notebook shell processing |
-
1965
- 1965-06-29 GB GB2750565A patent/GB1081820A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3512441A (en) * | 1968-05-14 | 1970-05-19 | Hudson Machine & Tool Corp | Adjustable gang slitter |
| DE3109862A1 (en) * | 1981-03-14 | 1982-10-14 | Loewe Opta Gmbh, 8640 Kronach | Punching tool with a plurality of punches for the simultaneous piercing of workpieces in the form of boards |
| EP0108935A2 (en) * | 1982-11-06 | 1984-05-23 | Trumpf GmbH & Co | Stamping machine having a multiple punch |
| EP0108935A3 (en) * | 1982-11-06 | 1984-08-22 | Trumpf Gmbh & Co | Stamping machine having a multiple punch |
| US4555966A (en) * | 1982-11-06 | 1985-12-03 | Trumpf Gmbh & Co. | Punch press with multitool punch assembly |
| ES2204254A1 (en) * | 2001-10-31 | 2004-04-16 | Pont-Ferrat M.C.I., S.L. | Single-acting or double-acting matrix for punching of printed circuit boards on one or both sides, has plate holder caps and cap striking plate, which are positioned at bottom of matrix, and are bordered peripherally by cutting outer ring |
| CN107282785A (en) * | 2017-07-17 | 2017-10-24 | 无锡微研股份有限公司 | One kind is extended punch-pin Rapid adjustment mechanism |
| CN109226462A (en) * | 2018-09-29 | 2019-01-18 | 嘉兴正野新材料有限公司 | A kind of adjustable punching press grinding tool of motor gear |
| CN110523841A (en) * | 2019-09-03 | 2019-12-03 | 成都宏明双新科技股份有限公司 | A kind of progressive die impact forming method of intensive small sircle hole |
| CN113664912A (en) * | 2021-08-18 | 2021-11-19 | 江苏杰邦电子科技有限公司 | Automatic perforating device is used in notebook shell processing |
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