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我厂于1973年生产M131W万能外圆磨床,在加工主轴动压轴承短瓦时,工艺要求精车后钳工刮研,平均每人每班刮三块左右,生产效率很低,不能满足当时生产需要。通过大搞技术革新推广以磨代刮新工艺,车间自行设计制造了磨铜瓦夹具。经生产实践证明,新的工艺加工方法生产效率比原来提高了10～20倍,而且加工质量稳定,光洁度可达(?)9以上;接触面积达到80％以上。装配后运转性能良好,无异常现象。改进后不但解决了笨重的体力劳动,而且提高
I plant in 1973 M131W Universal Cylindrical Grinder, the processing of dynamic pressure bearing short-watt spindle, the process requirements after the fine car fitter scraping research, the average per person per class scraping about three, the production efficiency is very low, can not meet the production need. Through extensive promotion of technological innovation to scratch scraping new technology, the workshop design and manufacture of its own tungsten-copper fixture. The production practice has proved that the new production process efficiency increased 10 to 20 times the original, and processing quality and stability, up to (?) 9 above; contact area of 80% or more. Good performance after assembly, no abnormalities. Improved not only solved the heavy physical labor, but also improved