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我厂所生产的量具刃具产品,精度要求高,平整性好,所使用的材料又以经过热处理的工具钢、合金钢为主,硬度较高,且产品批量较大,要求不断提高机床的切削效率。但我厂有一些371型平面磨床,是四十年代老产品,结构比较落后,磨头主轴系统刚度差,承载力小,加工精度不高,生产效率太低。以卡尺尺身工件为例,磨后还要进行繁重的手工抛光,满足不了生产需要,不能适应当前国民经济新跃进的形势要求。
The measuring tools and cutting tools produced by our factory have high precision and good flatness. The materials used are heat treated tool steel and alloy steel, with higher hardness and larger product volume, which require continuous improvement of the cutting of the machine tool effectiveness. However, I plant some 371-type surface grinder, is the old products of the forties, the structure is relatively backward, grinding head spindle system stiffness is poor, the carrying capacity is small, the machining accuracy is not high, the production efficiency is too low. Take the calipers and the body as an example. After grinding, heavy manual polishing is also needed to meet the needs of production and can not meet the current situation of a new leap forward in the national economy.