| 摘要 |
A chuck jaw is provided for holding an irregularly-shaped object such as a differential housing on a lathe. A chuck jaw body which is pivotally mounted to each chuck mounting block to pivot about an axis substantially tangential to a cylinder defined around the turning radius of the lathe. A first end of the chuck jaw body extends radially further in than a second end of the chuck jaw body, so that the first end can engage a radially smaller part of the irregular object, while the second end engages a radially larger part. Springs and adjustment screws preferably are provided to allow adjustment of the initial angle of the first and second ends.
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