| 摘要 |
PURPOSE: To perform precise positioning by allowing to transfer a material to the worked to a working position and providing a rotary table having two supporting members for the material to be worked capable of transfering the material to be worked existing at the working position to a set-up position. CONSTITUTION: The rotary table 33 is unidirectionally rotated by a reciprocating movement of a rotational lever 43 and a ratchet mechanism. When the rotary table 33 is rotated by 180 deg., a new material W to be worked placed on the supporting member 31 for the material to be worked is transfered to the working position X2 for thermal cutting and is simultaneously transfered to a set-up position X1 where the material W finished working is changed for a new material to be worked. The rotary table 33 is positioned by a method wherein a hole for positioning is provided in the rear surface of the peripheral part of the rotary table 33 and here a shot-pin 47 is inserted and extracted. In this way, the material W to be worked is precisely positioned to the working position by rotation dividing of the rotary table 33. |
