| 摘要 |
A workpiece clamp for holding a workpiece securely to a fixture block or work table during operations, such as machining and woodworking. The clamp includes a body and an insert, the insert having a contact face for applying force to the workpiece. The body preferably held in a cavity in the fixture block surface and the insert received in an inclined or angled recess in the body. The insert preferably includes a bore therethrough, such that a tension bolt can be inserted through the insert and into the body. Threads in the tension bolt can be engaged with threads in the body, drawing the insert along the inclined recess in the body, thereby applying tension to the tension bolt and applying downward and forward forces to the workpiece at the contact face. In one clamp, the body top is flush with or below the surface of the fixture block. In a preferred clamp, when the insert is fully inserted into the body, a small portion of the insert, including the contact face, extends above the fixture block surface. The clamp provides a strong forward and downward force on the workpiece with very little face deflection. The low profile clamp allows all but a small portion of the workpiece being held to be accessed with the tool being used, including the workpiece sides. One clamp includes flexibility imparted to the body, the insert, or both body and insert. Flexibility can be imparted by a relief cut disposed near the body upper lip or near the insert contact face. |
