| 摘要 |
PROBLEM TO BE SOLVED: To smoothly carry out injecting motion by preventing generation of vibration, noise and kinetic frictional heat by devising an injection rod not to be rotationally induced by high speed rotation of a spindle. SOLUTION: This injecting device to release a work piece held by a chuck 16 installed on the spindle of a machine tool by a draw tube 18 connected to a chucking cylinder is furnished with a front end part bearing unit provided to support rotation of the draw tube on a front end part inner peripheral surface of the draw tube and an injecting cylinder directly connected and installed on the same axis on the front end part bearing unit, the injecting cylinder has an injecting rod 20 on a central axis of which a through fluid hole to supply cutting oil is formed, and a front end part of the injecting rod is provided to be supported on the front end part bearing unit. COPYRIGHT: (C)2006,JPO&NCIPI |
