| 摘要 |
The invention relates to a honing tool which comprises an elongate housing and a thrust body displaceable longitudinally in the housing, the thrust body comprising a thrust plate and the thrust plate having opposed inclined edge surfaces which form slideways. The slideways engage with corresponding inclined surfaces on thrust members which are movable transversely to the longitudinal axis of the thrust body, the thrust members being connected to arcuate shells mounted around the housing for movement radially outwardly therefrom against a spring bias in response to longitudinal movement of the thrust body. The arcuate shells mounted in use cutting devices and the thrust members are arranged in pairs, the or each pair comprising a cylinder and a piston slidable therein. The inner ends of the cylinders and pistons are each slotted and receive therethrough the thrust plate. The closed ends of the slots form surfaces inclined, correspondingly with the inclination of the thrust plate edge surfaces, to the longitudinal axis of the thrust body. |
