气缸孔的机械加工是发动机缸体加工中的重要工序之一,尤其是精加工工序,往往成为加工关键。对于一些产量不大的中小厂是一个急需解决的技术问题。如何能创制一种加工精度稳定,造价低廉,适合于用户厂自行制造的简易专用镗缸机,经常是各发动机制造厂,特别是新建厂的疑难问题。 对于创制简易专用镗缸机,一些兄弟单位,在这方面做了不少工作,并且摸索出了一些经验。文化大革命以来,由于狠批了反革命修正主义路线,坚持“独立自主,自力更生”大 Cylinder hole machining is one of the important processes in engine block machining, especially the finishing process, which often becomes the key to machining. For some small and medium-sized production plant is an urgent need to solve the technical problems. How to create a simple and precise boring cylinder machine with stable machining precision and low cost, which is suitable for the user factory to manufacture by itself, is often a difficult problem for all engine manufacturing plants, especially new plants. For the creation of simple special cylinder boring machine, some brothers units, in this area has done a lot of work, and worked out some experience. Since the Cultural Revolution, due to criticizing the counterrevolutionary revisionist line, adhering to the principle of “independence and self-reliance”