| 摘要 |
PURPOSE:To machine a couple of machining places on a prescribed plane at the same time under optimum conditions at all times by positioning respective machining heads by an oscillation part and a movement part so that the distance between these machining heads and the machining places corresponding to these is maintained at a prescribed value at all times. CONSTITUTION:The respective machining heads 1 and 2 are mounted on traveling bases 11 and 21 corresponding thereto and can travel straight along a traveling axis and can oscillate around an oscillation axis 13 by the oscillation part and moreover, can make parallel movement spatially with respect to the prescribed plane by the movement part. Moreover, these machining heads are positioned by the oscillation part and the movement part so that the distance between the machining heads and the machining places corresponding to these heads is maintained at the prescribed value at all times. In addition, the respective machining heads 1 and 2 can either travel straight symmetrically mutually with respect to a fixed point on the traveling axis or can oscillate symmetrically mutually with respect to the plane where the optical axis divides a line to connect the respective machining heads 1 and 2 into two equal parts at right angles at least. Further, the front parts of the respective machining heads 1 and 2 are intercepted from peripheral air by clean air from a blow-off pipe 6 and protected from sticking of dirt and machining is performed under the optimum conditions at all times. |
