GB1075107A - Methods and apparatus for forming blanks - Google Patents
Methods and apparatus for forming blanksInfo
- Publication number
- GB1075107A GB1075107A GB1333566A GB1333566A GB1075107A GB 1075107 A GB1075107 A GB 1075107A GB 1333566 A GB1333566 A GB 1333566A GB 1333566 A GB1333566 A GB 1333566A GB 1075107 A GB1075107 A GB 1075107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- punch
- die
- blank
- head
- opposite
- 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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
1,075,107. Extruding; heading. H. F. PHIPARD. March 25. 1966, No. 13335/66. Headings B3H and B3P. A machine for forming blanks particularly for heading bolt and screw blanks 92c, comprises first and second dies 36, 40 and first and second punches 60, 62 movable relatively towards and away from each other, and means 32 for alternately aligning the first punch 60 with the first die 36 and then the second punch 62 with the first die, whereby a blank is first worked between the first die and first punch, transferred without deformation from the first die into the second punch, transferred by the second punch into alignment with the second die and then further worked between the second die and punch. The punches are mounted in a head 24 slidable transversely on ram 28 by linkage 34; ram 28 is reciprocated by a crankshaft through connecting rod 30. Bar stock 86, Fig. 3 (not shown), is severed by a blade 88 against a clamping element 90 and the cut blank is then transferred opposite the first die 36 into which it is pushed by punch 60 and forwardly extruded into blank 92a, Fig. 5 (not shown). The punches are then moved transversely to bring the second punch 62, opposite die 36, Fig. 7 (not shown), and the extruded blank 92a is pushed by knock-out rod 96 into the punch 62 which is slidable in head 24 and biased forwardly by spring 78. Punch 62 transfers the blank opposite second die 40 where it is upset to form a preliminary head 92b, Fig. 10 (not shown). A third punch 82 is then moved opposite the blank in die 40, Fig. 12 (not shown), and the blank is upset into final shape 92c. A knock-out rod finally ejects the blank. The knock-out rods 96, 106 are actuated by levers 98, 108. In another embodiment, Figs. 13-18 (not shown), for making a round head screw blank, the second die 62d is mounted rigidly in the head 24.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1333566A GB1075107A (en) | 1966-03-25 | 1966-03-25 | Methods and apparatus for forming blanks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1333566A GB1075107A (en) | 1966-03-25 | 1966-03-25 | Methods and apparatus for forming blanks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1075107A true GB1075107A (en) | 1967-07-12 |
Family
ID=10021058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1333566A Expired GB1075107A (en) | 1966-03-25 | 1966-03-25 | Methods and apparatus for forming blanks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1075107A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2832063A1 (en) * | 1977-07-25 | 1979-02-15 | Chugai Electric Ind Co Ltd | DEVICE FOR ESTABLISHING A THREE METAL ELECTRICAL CONTACT |
CN108421944A (en) * | 2018-03-19 | 2018-08-21 | 温州市翔潮汽车零部件有限公司 | Semi-hollow cold headers |
-
1966
- 1966-03-25 GB GB1333566A patent/GB1075107A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2832063A1 (en) * | 1977-07-25 | 1979-02-15 | Chugai Electric Ind Co Ltd | DEVICE FOR ESTABLISHING A THREE METAL ELECTRICAL CONTACT |
US4232812A (en) * | 1977-07-25 | 1980-11-11 | Chugai Denki Kogyo Kabushiki-Kaisha | Apparatus for making a tri-metallic composite electrical contact |
CN108421944A (en) * | 2018-03-19 | 2018-08-21 | 温州市翔潮汽车零部件有限公司 | Semi-hollow cold headers |
CN108421944B (en) * | 2018-03-19 | 2023-12-29 | 温州市翔潮汽车零部件有限公司 | Semi-hollow cold header |
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