Patent ID: 6189878
Filing Date: 2001-02-20
Classification: B25B

Abstract:
In a workpiece clamp for pressing a first workpiece (2) in its longitudinal direction against a bearing surface (3) of a second workpiece (4), said workpiece clamp being of the type comprising a support frame (5), a chucking tool (6) mounted on the support frame (5) for movement thereon for applying a force to the bearing surface (3) of the second workpiece (4), a counter-holding device (7) mounted on said frame and including a clamping jaw support (8), first and second clamping jaws (11,12) with spiral-shaped clamping surfaces (13,14), said clamping jaws being pivotally mounted on the clamping jaw support (8) and being positioned opposite one another, the improvement comprising:said clamping jaw support (8) being of U-shape with two spaced apart support members, first and second pivot pins (20,21) mounted parallel to and laterally opposite each other on said first and second support members, respectively, said first and second clamping jaws (11,12) being mounted for rotation on said first and second pivot pins, respectively, whereby said clamping jaws squeeze and hold the first workpiece therebetween when said chucking tool (6) is moved against said second workpiece to force the workpieces into engagement.