| 摘要 |
<p>The upper portion of a frame (1) of a lapping device is provided with a device (4) for supplying a workpiece, a grindstone (5), and a delivering device (6), and a movable arm (15) is horizontally and movably supported by a support column (3) of the frame in such a manner that the arm moves above the supplying device, grindstone, and the delivering device. The movable arm is provided with a device (36) for autorotating the workpiece, the autorotating device being able to move upwardly or downwardly through the pressurizing device (22), and the movable arm further being provided with a device (50) for holding the workpiece beneath the autorotating device. The workpiece is transported by the holding device to a position above the grindstone, and is brought into abutment with the grindstone by a holding member which is disposed at the lower end of the autorotating device, whereby it is ground while being rotated.</p> |
