目前,机械工业加工能力不足是一个突出问题。更是在全国大跃进迫切需要重型冶炼轧制设备与大型电站设备不足情况时,补充添加重型机床来加工大工件更为突出。第一机械工业部各厂1959年需要增加的重型机床数量上已超过第一个五年计划内所生产和五年增产的全部重型机床,但是国内现在能生产重型机床的工厂还只有数的几个工厂,所能供应的数量与规格远不能满足当前全国需要。向国外订购交货时间长,在数量上也不能满足需要。在上述情况下,生产加工大工件只有另寻方法使用小机床干大活来解决代替重型机床。对于生产各种机械设备来说,产品设计师应根据国家需要与经济合理性进行设计更重、更大、运转效 At present, the lack of processing capacity in the machinery industry is a prominent issue. It is even more prominent when the National Great Leap Forward urgently needs the shortage of heavy-duty smelting rolling equipment and large-scale power plant equipment. The number of heavy-duty machine tools to be added by the 1st Ministry of Machinery and Industry in 1959 exceeded the total number of heavy-duty machine tools produced in the first five-year plan and the five-year increase in production. However, only a few factories that can now produce heavy machine tools in China In factories, the quantity and specifications that can be supplied are far from meeting the current national needs. Ordering abroad has a long delivery time and cannot meet the needs in terms of quantity. In the above circumstances, the production and processing of large workpieces is only another method to use small machines to solve the problem of replacing heavy machine tools. For the production of various mechanical equipment, product designers should design according to the needs of the country and economic rationality, heavier, more efficient