陕西压延设备厂为适应多品种生产轧钢及锻压设备的需要,该厂广大职工在厂党委领导下,坚持“独立自主,自力更生”的方针,只花了两年时间,就设计制造出镗杆直径为220毫米的大型落地镗床。解决了机加工大件的生产关键,该镗床经生产使用,基本达到了原设计要求。机床的主要技术参数 In order to meet the needs of many varieties of rolling and forging equipment, under the leadership of the factory party committees, Shaanxi Calendering Equipment Factory adheres to the principle of “independence and self-reliance”. It took only two years to design and manufacture a boring bar with a diameter of 220 mm large floor boring machine. Solve the production of large pieces of machining key, the boring machine by the production and use, basically reached the original design requirements. The main technical parameters of the machine