| 摘要 |
<p>A machine tool (10) has a work table (14)which defines a working surface (16) and has a cutting tool (22) which is attached to and movable with respect to the work table (14). The position of the cutting tool (22) with respect to the working surface (16) is controlled by a mechanism (24) which elevates the cutting tool (22) with respect to the working surface (16) and angulates the cutting tool (22) with respect to the working surface (26). The cutting tool (22) is mounted to a support plate (34) which is pivotably attached to the work table (14). The elevating mechanism (26) includes a threaded rod (116) and a nut (114) which engages a pivoting link (110). The pivoting link (110) also engages the cutting tool (22). Rotation of the threaded rod (116) pivots the link (110) which in turn raises and lowers the cutting tool (22). A spring (112) biases the cutting tool (22) towards its lower position to remove play between the components. The angulating mechanism (24) includes a lever (188), two cams (66, 68) and a locking rod (62). Rotation of the lever (188) moves the locking rod (62) longitudinally due to the action between the two cams (66, 68). The longitudinal movement of the rod (62) compresses the support plate (34) between the work table (14) and a bracket (72) to maintain the position of the support plate (34) with respect to the work table (14). Also included is an integral arbor wrench (190) which is accessible when the throat plate (18) is removed to lock the arbor (138) to facilitate tool changing. The wrench (190) is designed to not allow reassembling of the throat plate (18) when the wrench (190) is in engagement with the arbor shaft (138). <IMAGE></p> |
