Abstract
The effective compensation upon machining error, which is given rise to by machine tool's thermal deformation, is an important fashion of improving machining efficiency in CNC system. The external thermal error compensation method is mostly adopted because of the closure in conventional CNC system. In order to solve embedded integral problem of real-time thermal error compensation function in CNC system, an concentrating approach is introduced by integral design. Of a concentrating manner, the thermal deformation error of X-axis screw is modeled and analyzed in THK6370 Horizontal processing centre. Not only is the inserted thermal error real-time compensation function realized in complete open CNC system, but also can the thermal error on-line real-time compensation be executed. Finally, the experiment validates the concentrating mode and the effective compensation of thermal deformation error can be implemented upon THK6370 horizontal machining centre X-axis screw.
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