在批林批孔运动的推动下,杭州仪表机械厂在1974年“七·一”前夕先后试制成功1HT4141机械钻孔动力头(见图)和HXT—1铣削动力头,为加速农业机械化和机械工业本身的技术改造做出了新贡献。目前1HT4141机械钻孔动力头已在该厂成批投入生产。1HT4141机械钻孔动力头是由鼓形凸轮推动主轴滑套实现刀具进给,可用于单轴加工, Driven by the pro-Lin bidding exercise, Hangzhou Instrument Machinery Factory piloted 1HT4141 mechanical drilling powerhead (see photo) and HXT-1 milling powerhead on the eve of “January 1” in 1974 to accelerate the development of agricultural mechanization and machinery The technological transformation of the industry itself has made new contributions. Currently 1HT4141 mechanical drilling power head has been put into mass production in the plant. 1HT4141 mechanical drilling power head is driven by a drum-shaped cam sleeve sliding sleeve to achieve tool feed, can be used for single-axis machining,