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镐筒上Φ7的孔,深240毫米。原先在旧式深孔钻床上加工,刀具的进给靠手动,劳动强度很大,需二个人操作,班产量仅30件,而且质量不易保证,有时因钻偏而钻通筒壁造成浪费。为了提高效率,保证质量,减轻劳动强度,我厂职工遵照毛主席关于“大搞技术革命”的教导,自己动手,制造了这台深孔钻床。于一九七二年投入使用,实践证明本机床效率高,质量好,操作轻便,性能稳定。只需一人看管,班产量超过40件,提高工效近二倍,且本机床采用液压进刀,自动退刀排屑,工作平稳,安全可靠。
Φ7 holes on the barrel, 240 mm deep. Originally in the old deep-hole drilling machine processing, the feed of the knife by manual, labor-intensive, requiring two people to operate, the class output is only 30, and the quality is not easy to guarantee, and sometimes due to drilling deviation caused by the cylinder wall waste. In order to improve efficiency, ensure quality and reduce labor intensity, our factory workers made the deep hole drilling machine in accordance with Chairman Mao’s teachings on “promoting technological revolution.” Put into use in 1972, the practice proved that the machine efficiency, good quality, easy operation, stable performance. Just one person custody, the class output of more than 40, improve work efficiency nearly twice, and the use of hydraulic machine tool feed, automatic retractable chip removal, work smoothly, safe and reliable.