Metal deforming – Tool and/or tool holder – Having unitary tool-face
Patent
1979-05-02
1981-02-17
Larson, Lowell A.
Metal deforming
Tool and/or tool holder
Having unitary tool-face
72705, B21D 112
Patent
active
042507367
ABSTRACT:
Clamping apparatus for transmitting a traction force to a metallic workpiece, such as an automobile body or the like, for deforming the same includes a frame including a clamping head housing portion having a cylindrical cavity formed therein, a clamping head assembly including a clamping head body having a cylindrical section and a pair of jaw portions, the cylindrical section portion of the clamping head body having a circumferentially extending groove formed therein with which is aligned the shank portion of a set screw which extends through the clamping head housing portion to fix the clamping head assembly, which is otherwise rotatable within the housing, with respect to the frame. The frame is provided with three appropriately formed areas for attaching a pulling bridle thereto for selectively applying a traction force either in a direction perpendicular to the plane of the clamping jaw portions, parallel to the plane thereof or in a direction 45.degree. to the plane thereof. In this manner, it is possible to transmit to the workpiece a traction force having the precise desired direction required for the particular deformation.
REFERENCES:
patent: 3015353 (1962-01-01), Brown
patent: 3241352 (1966-03-01), Lincourt
patent: 3258821 (1966-07-01), Curran
patent: 3338086 (1967-08-01), Hunter
patent: 3526120 (1970-09-01), Hunnicutt et al.
patent: 3631705 (1972-01-01), McCaffrey
patent: 3927550 (1975-12-01), Samuelsson
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