清华大学首批研制成功的GXF-1型数字显示装置两台(简称1号机、2号机),于1974年10月底在我厂车床上使用。一九七五年六月我厂又从清华大学引进两台(简称7411机、7406机),其中7411机用于镗床。现将使用情况介绍于下。 1.在车床上的使用我厂的机匣组合件用N8车床加工。加工尺寸多,使用量具多,加工过程中测量次数多。有一个尺寸的公差为0.027毫米,较难保证。因此我们在N8车床的纵座标上将 Tsinghua University, the first batch of successfully developed GXF-1 digital display device two (referred to as the No. 1 machine, No. 2 machine), at the end of October 1974 used in our factory lathe. In June 1975, our factory imported two units from Tsinghua University (referred to as 7411 machines and 7406 machines), of which 7411 machines were used for boring machines. Now the use of the situation introduced below. 1. The use of the lathe The machine casing assembly with N8 lathe processing. Processing size, the use of measuring more processing times measured. Tolerance of one size is 0.027 mm, more difficult to guarantee. So we are on the N8 lathe ordinate