Patent ID: 9557731
Date: 2017-01-31
CPC Classifications: G05B

Claim:
1. A control device of a gear processing machine, the control device comprising: a tool axis motor that drives a tool axis; a tool axis controller that controls the tool axis motor; a tool axis position detection sensor that detects a position of the tool axis; a workpiece axis motor that drives a workpiece axis; a workpiece axis controller that controls the workpiece axis motor; an upper controller that is connected to the tool axis controller and the workpiece axis controller; and a bus that directly connects the tool axis controller and the workpiece axis controller to communicate, wherein the position of the tool axis that is detected by the tool axis position detection sensor is supplied to the workpiece axis controller via the bus, the upper controller supplies a predetermined synchronization ratio and a superimposition command for applying a twisting operation to the workpiece axis controller, the workpiece axis controller adds a value that is generated by multiplying the position of the tool axis supplied via the bus by the synchronization ratio, and the superimposition command, and generates a motion command for the workpiece axis, the upper controller is configured to transmit first information to the workpiece axis controller, and the first information is a flag indicating whether or not the workpiece axis is a slave axis.