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高、中压阀门在化肥设备中占着很大的数量和重要地位。本文详细介绍了上海良工阀门厂和上海市机械综合研究所在最近几年对二级精度螺纹的加工方法所进行的试验研究,并初步作出如下结论:(1)加工二级精度螺纹的机床,其精度要求不必过于苛求(文内附有这次试验的两台车床的精度数据)。(2)影响螺纹精度的主要因素是机床传动链精度及工艺装备误差:1.在机床精度一定时,原良工阀门厂加工二级精度螺纹时所用的主轴传动链简化机构附加装置,可以不用。
High, medium pressure valves occupy a large number of fertilizer equipment and an important position. This paper introduces in detail the experimental research on the machining method of secondary precision thread made by Shanghai Lianggong Valve Factory and Shanghai Institute of Machinery in the last few years and makes the following preliminary conclusions: (1) Machine tool for machining secondary precision thread , The precision requirements do not have to be too demanding (with the text of this test the accuracy of the two lathes data). (2) The main factor affecting thread accuracy is the accuracy of the machine chain and the error of process equipment: 1. When the accuracy of the machine tool is constant, the spindle drive chain used by the original factory workers to process the second-grade precision thread simplifies the additional mechanism of the mechanism and may not need it.