CONTROL DEVICE FOR MACHINE TOOL INCLUDING ROTARY I

专利名称：CONTROL DEVICE FOR MACHINE TOOL

INCLUDING ROTARY INDEXING DEVICE

发明人：Yoshitsugu OGAWA申请号：US14519544申请日：20141021

公开号：US20150115514A1公开日：20150430

摘要：A rotary table is rotated by a machining load. A drive motor tries to return therotary table to a positioned target position, and increases output torque. When theoutput torque reaches upper limit torque Tmax or when output torque which is equal toor greater than permissible torque Tp continues for predetermined time ΔT, a targetposition which is sent to a drive motor is changed, thereby promoting reduction in outputtorque. If the output torque becomes smaller than permissible torque Tp, the targetposition is changed to bring position deviation of the drive motor equal to 0, and theposition deviation is swiftly returned.

申请人：FANUC CORPORATION

地址：YAMANASHI JP

国籍：JP

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