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电话交换机的零件中,有一些厚度为2毫米的薄板零件,需要在这类薄板零件上攻制M2.5～M4的小直径螺孔。螺孔间的最小中心距约为10毫米。以前是采用单轴攻丝机逐孔进行攻丝,生产效率低,工人操作劳动强度大,有时还出现漏攻现象。在深入开展“工业学大庆”的运动中,我们遵照毛主席自力更生的方针自行设计制成了曲拐传动多轴攻丝机(图1)。经过反复实践,反复改进,使这种攻丝机越来越完善,使用效果越来越好。目前我厂已有将近二十种零件分别在六台曲拐传动多轴攻丝机上完成攻丝工序。对外形简单的工件还采用了叠片式或振动式料斗实现自动上下料,实现了多轴攻丝自动化。
Among the parts of the telephone exchange, there are some thin-walled parts with a thickness of 2 mm which require the use of small-diameter screw holes M2.5 to M4 on such thin-plate parts. The minimum center distance between the screw holes is about 10 mm. In the past, tapping was done hole-by-hole using a single-axis tapping machine. The production efficiency was low, the labor intensity of the workers’ operation was large, and the phenomenon of leakage was sometimes found. In deepening the “Daqing Industrial” campaign, we designed and manufactured the crank-drive multi-axis tapping machine according to Chairman Mao’s principle of self-reliance (Figure 1). After repeated practice, repeated improvement, so that more and more perfect tapping machine, the use of better and better. At present, our factory has nearly 20 kinds of parts, respectively, in the six crank drive multi-axis tapping machine to complete the tapping process. On the simple shape of the workpiece also uses laminated or vibrating hopper to achieve automatic loading and unloading, multi-axis tapping automation.