| 摘要 |
PURPOSE:To make it easy to connect or disconnect the driving shaft side members to or from the tool side members, when a tool tip is controlled by a driving shaft, expand the range of use, and miniaturize the whole of the device in a compact size. CONSTITUTION:A driving shaft 2 which works independently is concentrically and rotatably set in a machine main spindle 1 as axially movably, a junction member 11 is fixed to the lower end of the machine main spindle 1, a clamping nut 13 is screw-engaged around the junction member 11 and a tool holding body 14 is mounted on the junction member 11 under pressure by a clamp claw part of the clamping nut 13. The tool holding body 14 includes a piston member 21 which can be moved axially, a connecting part 22 to the driving shaft 2 is formed on the upper end part of the piston member 21 and a bevel cam 23 is formed on the lower end part of the piston member 21. A tool carrier 24 is attached to the lower end of the main body of the tool holding body 12 as radially movable. When the piston member 21 lowers, the tool carrier 24 is pressed by the bevel cam 23 and moves radially against a spring 25. |
