| 摘要 |
<p>A clamping apparatus (10) actuated by a fluid-powered actuator (12), has a housing (14) with a guide track (16) mounted on or formed in the housing (14). A cam (20) operably engages with the guide track (16) such that the cam (20) can be moved linearly, and positioned, along the guide track (16) by way of the actuator (12). At least one pivoting arm (22) is pivotally mounted on the housing (14) adjacent to and spaced from the guide track (16). Each pivoting arm (22) has an elongate slot (24) formed in it. The elongate slot (24) has two arcuate surfaces positioned parallel to each other and has two end surfaces joining the arcuate surfaces to define a closed loop surface. The cam (20) is positioned within the elongate slot (24) of each pivoting arm (22) to pivot each pivoting arm (22) between a clamped position and a released position as the cam (20) is moved along the guide track (16) and driven against the aforesaid arcuate surfaces of the slot (24) of each pivoting arm (22). <IMAGE></p> |
