| 摘要 |
A quick set hydraulic workholding vise including a fore-and-aft longitudinal elongated base having a front stationary jaw and a rear jaw movable toward and away from the stationary jaw. The movable jaw is interfitted on a slide plate for sliding movement of the movable jaw to coarse adjustment spacing slightly larger than the corresponding dimension of the work portion to be received between the jaws and the slide plate extends centrally along substantially the length of the base and is movable through a limited predetermined range relative to the base between a forward gripping position and a rearward release position for the movable jaw. Compound wedge means are provided for releasibly gripping opposite side portions of the slide plate and clamping the movable jaw at the coarse adjustment position, and hydraulic power means rapidly move the slide plate and the movable jaw to the forward gripping position. The slide plate and movable jaw are spring returned to said rearward release position.
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