| 摘要 |
The invention depicts and describes a clamping device for securing a draw-in bolt (12) on a machine table, a baseplate, or the like, having a piston (6) that is arranged movably in a cylinder bore (4) to form a pressure chamber (5), a cover (9) that closes off the cylinder bore (4) on the side opposite the pressure chamber (5), a receptacle (11) which is configured in the piston (6) and/or the cover (9) and into which a draw-in bolt (12) can be inserted, and a clamping mechanism in order to secure a draw-in bolt (12) in the receptacle (11), the clamping mechanism being actuable by displacement of the piston (6) between a clamped position into which it is pushed by spring elements (10) that are arranged in a spring chamber (2) provided between the piston (6) and cover (9), and a released position into which it can be brought by impingement of a hydraulic medium on the pressure chamber (5), which is characterized in that the spring chamber (2) is connected to the receptacle (11) by at least one runoff duct (19) through which the fluid that collects in the spring chamber (2) can run off into the receptacle (11).
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