| 摘要 |
A work-holding implement for use in honing or otherwise machining the inner surface of a bore in a workpiece comprises a torsion-carrying spring band coil mounted at one end of a handle. Most of the inwardly exposed surface of the innermost turn of the coil is a gripping surface, while the remaining turns in the coil have smooth bearing surfaces. A workpiece is gripped by the innermost turn, and as an interior bore in the workpiece is being honed or otherwise machined, rotational torques exerted on the workpiece by the machine tool cause the coil to become more tightly wound around the workpiece. As the workpiece is being worked on, the tightened coil bears against a planar segment of the spring band forming part of the implement and deforms it into a curved surface conforming to the workpiece surface over which contact is made. Two control guides serve to keep the turns of the coil in alignment for proper pressure distribution of the innermost coil in its contact with the outer circumference of the workpiece. A loading fixture for use in conjunction with the work-holding implement allows quick and easy insertion and removal of a workpiece with safe and sure frictional engagement of the workpiece.
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