| 摘要 |
<p>The workpiece holder consists of a support (12) with a locking mandrel (14) for the workpiece (15) on one side, and clamps (16) on another side to receive the roughly-shaped workpiece and hold it while its outer edge is shaped. The mandrel and clamps are located on adjacent sides of the support, which is able to rotate about an axis (13) lying parallel to the two sides. The mandrel and clamps are controlled by actuators inside the support, with the mandrel designed to grip the outside of the initial blank and the clamps to grip the inside after the first holes have been made in it.</p> |
