HEAT DEFORMATION ERROR MEASURING DEVICE FOR CNC MACHINE

摘要

The present invention relates to a thermal deformation error measuring apparatus of a computer numerical control (CNC) machine tool, in particular X, Y, Z to each other by a fixed rod (2) (16) to the jig (1) of the computer numerical control machine tool Spheres 3 and 5 spaced apart in the direction; A contact probe (7) mounted on the main shaft (8) of the computer numerically controlled machine tool controlled by the controller (12) for measuring the center coordinates of the spheres (3, 5); Thermal deformation of the main shaft 8 generated according to the change of working time by receiving the center coordinates of the spheres 3 and 5 and the generated temperature for each position of the machine tool from the controller 12 and the temperature measuring instrument 10, respectively. It relates to a heat deformation error measuring apparatus of a computer numerically controlled machine tool, characterized by comprising a calculator (11) for measuring the error in the X, Y, Z direction.