| 摘要 |
The present invention relates to a clamping device for a portable boring machine which can be downsized and improve the operability. A clamping device (1) according to the present invention is attached to a front part of a body (2) of a boring machine for clamping the boring machine and a workpiece (W) together. The clamping device (1) includes a fixed piston (81) fixed on the front part of the body(2), a movable piston (81) equipped over the front part of the body (2) movably in the axial direction of a spindle of the boring machine, a first pressure chamber (82a), a second pressure chamber (82b), a pressurized fluid-supply device (A) to supply pressurized air to the first pressure chamber (82a) and the second pressure chamber (82b) so that the movable cylinder (82) is moved in the axial direction, a connecting mechanism (7) an end portion of which is connected to the movable cylinder (82), and a clamping unit (10) which is connected to the other end portion of the connecting mechanism (7), and is fixed to a certain position of the workpiece (W). |
