解决转8A型侧架轴箱挡加工超差问题的方法

Method for solving problem of overtolerance in machining axlebox guide on side frame of truck type 8A

本文从我厂生产的转8A型侧架轴箱挡加工对称度超差的实际情况出发,阐述了TB1248—86标准对转8A侧架轴箱挡加工的精度要求,着重分析了产生超差的原因,对正确贯彻TB1248—86标准,改进现行的划线、加工、检查工艺提出了具体的设想和建议。

Originating from the actual condition of full bodyover-tolerance of symmetricity in machining of axle-box guide on side frame of truck type 8A built byour works,the accuracy requirement in machining axle-box guide pn side frame of truck tyne 8A as stipul-ated in standard TB 1248-86 is described, especiallythe causes of full body over-tolerance produced areanalyzed. Detail supposition and suggestion about im-provement on current scribing, machining and inspec-tion technologies are put forward.