Patent ID: 9594357
Date: 2017-03-14
CPC Classifications: G05B

Claim:
1. A thermal displacement compensation device of a machine tool, the thermal displacement compensation device comprising: a thermal displacement compensating unit configured to compensate a position command value of a feed axis by a thermal displacement compensation amount adjusting unit configured to adjust the thermal displacement compensation amount from an error amount, said error amount being between an image display device configured to display an image of a workpiece or a tool; an image operating unit configured to move the image of said workpiece or tool in a direction to cancel the error amount of the machining point; a moving direction display unit configured to display on the image display device an image which shows a relationship between a thermal displacement compensation amount determining unit configured to determine an increase or a decrease of the thermal displacement compensation amount based on the direction in which the image is moved from the initial position by the image operating unit, wherein an error amount setting unit configured to set the error amount of the machining point, wherein the thermal displacement compensation amount adjusting unit is configured to adjust the thermal displacement compensation amount based on wherein the machine tool is controlled based on the thermal displacement compensation amount adjusted by the thermal displacement compensation amount adjusting unit.