| 摘要 |
PURPOSE:To aim at the prevention of wrong transfer of a pallet and the shortening of calling soft processing time, by making a machining program, corresponding to a combined code number of dogs, so as to be called out of a memory when each dog size of the pallet measured by a sensor is within the tolerance value. CONSTITUTION:When a pallet change command is issued to an automatic pallet changer, each pallet 4 is moved by one station by a chain 8 and fed to a standby station. A following pressure fluid is fed, a displacement gauge set 18 is made to go forward, and each height of dogs 13a-13c is measured by displacement gauge sensor 19a-19c, outputting these value to a numerical control system, and when each height is all within the tolerance value, the sum total of each height of these dogs 13a-13c is judged whether it is an add number or not and then a parity check takes palce. And, If it is the odd number, the set 18 is retracted, and work code numbers by a combination of data of each dog are checked, and when the machining program is called out, a pallet change command is issued whereby the pallet 4 is delivered to a machining position on a table, thus machining is performable at one by the machining program without entailing any wring feeding. |
