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内燃机车的滑动轴承(俗称抱轴瓦),是由ZQSn6-6-3锡青铜和锡基轴承合金构成的双层金属滑动轴承。轴承外径:大端φ330_(-.34),小端φ240_(0.075)~(+0.105)时,轴承内径:φ208_(0.02)~(0.31),轴承全长:265_(-0.340)该轴承由两块轴向对称件合成。该件加工质量的好坏,直接影响内燃机车的运行。外圆仿形加工是抱轴瓦成型加工的最后一道工序,为保证其圆度及上、下两半瓦瓦缝合口处不错口,特设计制造如图所示夹具。该夹具加工抱轴瓦外圆时,要求工件前道工序将工件大端外圆及端面、
Diesel locomotive bearings (commonly known as axle bearing), is made of ZQSn6-6-3 tin bronze and tin-based bearing alloy double-layer metal sliding bearings. Bearing diameter: φ330_ (-. 34) for large end and φ240_ (0.075) to (+0.105) for small end Bearing diameter: φ208 0.02 to 0.31 Bearing full length 265 _ (- 0.340) Two pieces of axial symmetry synthesis. The processing quality is good or bad, a direct impact on the operation of diesel locomotives. Cylindrical shape forming process is the last process of holding the forming process, in order to ensure its roundness and the upper and lower two-half tile suture mouth is not bad, specially designed and manufactured as shown in the fixture. The fixture processing axle bearing outer circle, the workpiece before the work process requirements will be the big end of the cylindrical surface and the end,