东风型内燃机车的10L207E 型柴油机气缸套,由于形状复杂、壁薄、孔深。加工量大,在通用机床上加工,效率较低,不能满足铁路运输日益发展的需要。为了从恨本上改善这种状况,我厂组织了“三结合”小组,自行设计、制造,于1977年建成一条气缸套内孔粗加工、半精加工自动线。该自动线经过半年的生产实践,证明性能良好、工怍稳定,符合设计要求。气缸套内孔粗加工和半精加工过程中的 Dongfeng diesel locomotive diesel engine 10L207E cylinder liner, due to the complex shape, wall thin, deep hole. Large amount of processing, machining in general-purpose machine tools, low efficiency, can not meet the growing needs of rail transport. In order to improve this situation from the hatred, I plant the “three combination” of the group, to design, manufacture, built in 1977, a cylinder liner bore roughing, semi-finishing automatic line. The automatic line after six months of production practice, proven good performance, labor stability, in line with design requirements. Cylinder liner hole roughing and semi-finishing process