某采煤机换向阀阀体内孔的车床夹具设计

针对1800kW采煤机的滑阀式换向阀阀体内孔运用通用夹具加工时定心精度差、难度大、质量不稳定等问题,提出采用方孔定位和阀体的螺纹孔夹紧的方案设计在车床上加工的专用夹具方案。通过采用该方案加工的阀体,保证了产品质量,提高了生产效率。

In view of the problems of poor centering accuracy,difficulty and unstable quality,the inner hole of the slide valve body of 1800kW coal mining machine is processed with general fixture.This paper presents a special fixture scheme for machining lathe with square hole positioning and threaded hole clamping of valve body.By adopting the valve body processed by this scheme,the product quality is guaranteed and the production efficiency is improved.