Swing clamp apparatus

Details Swing clamp apparatus Swing clamp apparatus

1997-01-24

1998-10-13

Smith, James G.

Work holders

With fluid means

Plural positioning means sequentially operated

269 25, 269 27, 269 30, B23Q 308

Patent

active

058201181

ABSTRACT:
A hydraulically-operated swing clamp (10) for holding and clamping a workpiece (14) to a fixture (12) is disclosed. The swing clamp (10) includes an improved cam assembly (24) that swings its clamping head (22) away from the workpiece (14) when the piston (22) of the clamp (10) is shifted to its extended, unclamped position. The cam assembly (24) includes at least one cam track or groove (38,40,42) and a corresponding cam follower ball (44) received within the groove (38,40,42). The cam track (38,40,42) includes a central arcuate region (48) and a pair of substantially planar side faces (50,52) extending tangentially from the central arcuate region (48). The central arcuate region (48) has a radius of curvature substantially equal to the radius of curvature of the cam follower ball (44). The planar side faces (50,52) extend tangentially away from the central arcuate region (48) and the cam follower ball (44).

REFERENCES:
patent: 3572216 (1971-03-01), Sesody
patent: 3605569 (1971-09-01), Sessody
patent: 3948502 (1976-04-01), Waller et al.
patent: 4351516 (1982-09-01), Ersoy et al.
patent: 4508327 (1985-04-01), Ersoy
patent: 5013015 (1991-05-01), Fatheree
patent: 5437440 (1995-08-01), Keaton
patent: 5695177 (1997-12-01), Mascola

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