| 摘要 |
PURPOSE:To perform slotter process of a long groove having both closed ends, by enabling the tip of a cutter to effect movement in that the tip traces on a locus for forming a circular groove which is dented from the inner surface of an object to be machined and extends in the direction of an axis. CONSTITUTION:With an actuator 17 turned, a rotary shaft is turned to rotate a cam 18 counter clockwise about a rotary shaft 16. Rotation of the cam 18 causes a cutting device 15 to move forward and backward to and from an object 10 to be machined through a crank arm 19. Further, in conformity with the external shape of the cam 18, a slide body 12 is rocked, whereby the rocking motion and forward and backward movement cause the tip of the cutting device 15 to move on a given locus, resulting in formation of a long groove having both closed ends. |
