| 摘要 |
A device for clamping a tool (1) on, for example, a table (2) in a hydraulic press, has clamping fixtures (3) arranged on said table and distributed around the tool (1), said clamping fixtures being movable into clamping engagement with an abutment (13) on the object (1). Each clamping fixture (3) is reciprocable towards and away from the object (1) and has a clamping arm (5), an attachment (6) and a dog (7). The clamping arm (5) is pivotally mounted on said attachment (6) and has an abutment face (11) and a clamping face (12). The dog (7) is movable relative to the attachment (6) and the clamping arm (5) and has a sloping face (20) abutting against a sloping face (22) on the clamping arm (5). The dog (7) continues its movement when the abutment face (11) of the clamping arm (5) strikes the object (1) so that the movement of the clamping arm (5) and the attachment (6) is restricted, whereby the dog (7), via the sloping faces (20, 22), swings said clamping arm (5) and moves the clamping face (12) thereof into clamping engagement with the abutment (13) on the tool (1), whereupon the dog (7) is stopped. |
