| 摘要 |
A collet chuck of the type wherein a nosepiece having screw-threaded engagement with the chuck body forces a contractible collet axially inwardly of the body to effect contraction of the collet through a nose ring interposed between the axially outer end of the collet and an inturned shoulder on the nosepiece, the collet chuck herein being characterized in that the nose ring has a close axially telescoping fit with the axially outer end portion of the collet and a radial clearance fit within the nosepiece so that the nose ring and collet remain coaxial during operation of the chuck so as to accurately grip a tool or the like with its axis substantially coinciding with the axis of the chuck body.
|
