| 摘要 |
The precision vise has four major components including a base having a stationary jaw, a movable jaw, a cylindrical guide element or pin and a threaded operating rod or element. The base is provided with an accurately finished jaw support surface having a longitudinally extending slot or groove therein extending from one end of the base to the other end. The cylindrical guide element is located in the slot in engagement with curved or part cylindrical guide surfaces located on opposite sides of the slot. The movable jaw having an accurately finished bottom surface is mounted on the support surface and is fastened to the cylindrical guide element. The threaded operating rod is rotatably carried by the base and is connected to the movable jaw. Manipulation of the operating rod is effective to move the movable jaw in one direction only in a straight path towards or away from the stationary jaw depending on the direction of rotation of the rod, with the guide element traveling in the slot in engagement with the guide surfaces to thereby maintain the movable jaw properly oriented and aligned.
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