Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp is active metal-deforming element
Patent
1994-05-20
1995-11-14
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp is active metal-deforming element
72413, 72481, 72381, B21D 3700
Patent
active
054656001
ABSTRACT:
A die assembly (10) for shaping a workpiece (12). The die assembly (10) includes a die shoe (22) within which a channel (24) is provided. A hollow die head (32) may move within the channel. One or more passages are disposed within the die head (32). Within each passage is a locking member (46) which is seatable within a groove (52) defined within a head portion (50) of a shaft (48) which transmits a shaping force to the workpiece (12) or a driven or shaping force within the die assembly (10), thereby allowing the shaft (48) to rotate axially. The die assembly (10) permits the die head (32) and shaft (48) to move in unison during the initial stages of retraction. During later stages of retraction, the die head (32) becomes unlocked from the shaft ( 48).
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Goff, Jr. Kenneth H.
Schultz William E.
Crane Daniel C.
Ford Motor Company
Malleck Joseph W.
May Roger L.
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