| 摘要 |
PURPOSE:To reduce the manufacturing cost required for improving the cutting accuracy for a crystal oscillator, a ceramic wafer and the like. CONSTITUTION:A work 1 is fixed on a crank type work fixing bed 3 having trunion pins 4 on both sides, and a U-shaped base 5 is supported by the trunnion pins 4 and the lower section of the U-shaped base 5 is supported by a feed cylinder 10. The work fixing bed 3 and the feed cylinder 10 can be rotated forward and in reverse by the given angle in the feeding direction of the cutting blade by the cylinder. |
