B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
269/27
B25B 1/20 (2006.01) B23Q 3/02 (2006.01)
Patent
CA 1133956
ADJUSTABLE VEE BLOCK CLAMP ABSTRACT This invention relates to a work holder for holding a workpiece, Clamps having flat jaws and screw thread advances cannot engage the curved item over a large surface, Thus, the force that the jaws exert to hold the item is concentrated over a small area, This concentration can cause deformation or destruction of the item to be held. Further, the limited area of contact may be insufficient to give the clamp an effective hold on the item. Prior art vee block devices are complex in construction, and the operator must insert or remove shims under the device to change the vertical location of the device and the item held. Inserting and removing shims is time-consuming and increases the cost of setting up a machine operation. The present invention overcomes the deficiencies of the prior art by providing an improved vee block clamp intended chiefly to hold items having a curved outer surface. A central block has an inclined edge facing the front of the clamp and two side blocks adjacent the cen- tral block have inclined edges facing the rear of the clamp. Central block channels mateably engage the side blocks to provide alignment, The blocks are held together by a threaded fastener and slidable positioning of the blocks is achieved by a slot in the central block through which the fastener passes. An adjustable top arm holds the items engaged against the inclined faces.
346057
Chiappetti Pietro
Gowling Lafleur Henderson Llp
LandOfFree
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