| 摘要 |
PURPOSE:To enable a wiring to an index device to be omitted by fitting relays which become 'ON' when a pallet is fixed at a predetermined position on a table, to a space between the pallet and a machining center main-body. CONSTITUTION:A pair of relays 28 which becomes 'ON' when a pallet 2 is fixed at a predetermined position on a table 1 is fitted to the pallet 2 and a pallet clamp device 3. The relay on the pallet 2 side is connected to the operating oil-inlet-outlet of the drive hydraulic motor of an index device 4, and the relay 28 on the pallet clamp device 3 side is connected to a motive power source transmission device provided at a machining center, and as a result, a hydraulic circuit is constituted between the drive hydraulic motor and the hydraulic device. At the pallet 2 is formed a cylinder 20 opening into the ceiling surface of a put-on hole 18 and a rod 21 is inserted into this cylinder, and at a positioning pin 19 is formed a cylinder 22 whose upper end is open, and a rod 23 is inserted into this cylinder. |
