Valve hole machining device and valve hole machining method of automotive wheel rim

摘要

In the wheel rim 2 which persists with clamp expedient and rim support means, to annular seat pushing punch keeping with the poricidal dehiscence punch 34 which it passes 32 and that guide hole 33 in seat process feature, pushing pressure processing and alienating with the process which forms the installation bearing surface 8, once, it does not make seat pushing punch contact 32, it proposes valve hole process method and the processed device 20 which consecutively it tries to execute with the process which forms the valve hole 7 by drilling poricidal dehiscence punch 34 to wheel rim 2. With this process method and processed device 20, the installation bearing surface 8 and the valve hole 7 the accuracy and stabilizing, as it can form, it does not cause Bali which requires removal job. Brief conversion and cost decrease of production time it becomes actualization possible depending upon this process method and using processed device 20.