The master drive system design and the main axle module design is in the metal-cutting machine tool design important content, this graduation project's topic is the X6132-28 master drive design and the main axle module design. In the design acts according to the datum, had determined the main motor power, the transmission system common ratio, the speed change group and the transmission vice-number, have calculated the gear number of teeth, has drawn up the rotational speed chart, and has carried on the master drive structural design. Based on this has carried on the gear design, main shaft bearing's disposition and the main axle design parameter determination and the main axle module's rigidity checking calculation.
Keywords: Milling machine， master drive system， main axle module
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