GB1190664A - Improvements in or relating to Apparatus for Forging Crankshafts and like Forgings. - Google Patents
Improvements in or relating to Apparatus for Forging Crankshafts and like Forgings.Info
- Publication number
- GB1190664A GB1190664A GB2979167A GB2979167A GB1190664A GB 1190664 A GB1190664 A GB 1190664A GB 2979167 A GB2979167 A GB 2979167A GB 2979167 A GB2979167 A GB 2979167A GB 1190664 A GB1190664 A GB 1190664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cradles
- cylinders
- hydraulic
- actuator
- anvil
- 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
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/08—Making machine elements axles or shafts crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
1,190,664. Forging crankshafts. COMPAGNIE DES ATELIERS ET FORGES DE LA LOIRE (St. Chamond-Firminy-St. Etienne- Jacob-Holtzer). 28 June, 1967 [29 July, 1966], No. 29791/67. Heading B3H. In a crankshaft forging apparatus having a pair of slidable cradles 14, 14a movable towards each other for upsetting therebetween a workpiece 21, and a transversely movable anvil 16 for forging the crankpin, the movements of the cradles and anvil are effected by an hydraulic actuator unit B through hydraulic transmission means. Workpiece 21 may be preformed with enlarged portions or these may be produced by the upsetting. Cradles 14, 14a slide on stationary rods 19, 19a having stationary pistons 20, 20a working in moving cylinders 13, 13a. These are supplied with hydraulic fluid from actuator cylinders 11, 11a which may be interconnected to ensure uniform movements of the cradles. The inner forging surfaces of the cradles may have die portions for shaping the crank webs. The crank pin is formed by a forked anvil 16 consisting of two halves (16), (16a), Fig. 7 (not shown), pivoted at 29 to a vertical slide (30) actuated by a pair of pistons 15 supplied with hydraulic fluid from actuator cylinder 12. The two fork halves (16), (16a) are pivoted by hydraulic cylinders (28) and locked in their closed position by a clamp (31) actuated by an hydraulic cylinder (33). The cradles 14, 14a have pivoted caps (25), Fig. 5 (not shown), actuated by hydraulic cylinders (26). The actuator unit B may be operated by the ram 17 of a press and the hydraulic system provides a force multiplication of at least 2: 1. The actuator cylinders 11, 11a, 12 are dimensioned so that the cradles 14, 14a are moved before the anvil 16. Alternatively the actuator units may be operated by an hydraulic pressure generator. An auxiliary pressure generator is used to supply the ancillary cylinders (26), (28), (33) and for retracting the cradles. For determining the angular position of the crank throws, a rotary jig (22), Fig. 6 (not shown), is housed in cradle 14 and rotated by a chain (23) driven by a reduction motor unit (24), or alternatively by a rack transmission driven by a cylinder unit. In another embodiment, Figs. 8-10 (not shown), the cradles are moved by pistons working in single stationary cylinders (35) and are retracted by cylinders (36).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR71398A FR1526866A (en) | 1966-07-29 | 1966-07-29 | Apparatus for forging crankshafts and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1190664A true GB1190664A (en) | 1970-05-06 |
Family
ID=8614429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2979167A Expired GB1190664A (en) | 1966-07-29 | 1967-06-28 | Improvements in or relating to Apparatus for Forging Crankshafts and like Forgings. |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE1627668A1 (en) |
| ES (1) | ES342387A1 (en) |
| FR (1) | FR1526866A (en) |
| GB (1) | GB1190664A (en) |
| NL (1) | NL151646B (en) |
| SE (1) | SE354026B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311955A (en) * | 2016-08-29 | 2017-01-11 | 武汉重工铸锻有限责任公司 | Fast crankshaft upsetting device with pre-upsetting function and method for using fast crankshaft upsetting device for upsetting |
-
1966
- 1966-07-29 FR FR71398A patent/FR1526866A/en not_active Expired
-
1967
- 1967-06-27 ES ES342387A patent/ES342387A1/en not_active Expired
- 1967-06-28 GB GB2979167A patent/GB1190664A/en not_active Expired
- 1967-06-28 SE SE948667A patent/SE354026B/xx unknown
- 1967-07-13 NL NL6709742A patent/NL151646B/en not_active IP Right Cessation
- 1967-07-20 DE DE19671627668 patent/DE1627668A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311955A (en) * | 2016-08-29 | 2017-01-11 | 武汉重工铸锻有限责任公司 | Fast crankshaft upsetting device with pre-upsetting function and method for using fast crankshaft upsetting device for upsetting |
Also Published As
| Publication number | Publication date |
|---|---|
| SE354026B (en) | 1973-02-26 |
| ES342387A1 (en) | 1968-07-16 |
| NL6709742A (en) | 1968-01-30 |
| DE1627668A1 (en) | 1971-02-04 |
| FR1526866A (en) | 1968-05-31 |
| NL151646B (en) | 1976-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |