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一、技术要求与加工难度很多起重运输机械的行走部分均有车轮法兰这一另件。其结构见示意图(图中以JG250混凝土搅拌机车轮法兰为例)。从图中可见,两端轴承室除有较高的尺寸精度和表面光洁度外,二者之间还有较高的同轴度要求。为此,在普通车床上一次装夹要想完成两端轴承室的车削加工是很困难的。二、传统工艺及其不足一般传统工艺是这样安排的 (1)粗车各部位; (2)精车一端轴承室;
First, the technical requirements and processing a lot of difficulty Lifting the transport machinery are part of the wheel flange flange this other piece. See the schematic diagram of the structure (the figure to JG250 concrete mixer wheel flange as an example). Can be seen from the figure, both ends of the bearing chamber in addition to higher dimensional accuracy and surface finish, there is a high degree of concentricity between the two requirements. To this end, a common lathe in the fixture on both ends of the room to complete the turning process is very difficult. Second, the traditional process and its lack of general traditional technology is so arranged (1) the rough car parts; (2) fine car one end of the bearing chamber;