WORKPIECE CHANGING DEVICE FOR MACHINE TOOL

摘要

PROBLEM TO BE SOLVED: To accomplish satisfactory approach to a workpiece table during machining and to perform workpiece changing operation at very high speed even in a desired machine tool. SOLUTION: This workpiece changing device moves a workpiece or a workpiece pallet 10 between a storage means 14 and the workpiece table 11 of the machine tool 12. The device includes: a gripper means 20 for receiving and unloading the workpiece or the workpiece pallet 10; and a rotary driving device for turning the gripper means 20. A linear driving device moves the gripper means 20 between a first position on a storage means 14 and a second position on the workpiece table 11. The storage means 14 includes a changing station 28 for moving and receiving the workpiece or the workpiece pallet 10 by the gripper means 20. A carrying means is provided to supply and retreat the workpiece pallet 10 and/or a workpiece receiving means 26 to the changing station 28 and from the changing station 28. COPYRIGHT: (C)2006,JPO&NCIPI