东德DKZ2500立车是我厂生产的关键设备,长期以来担负吊车外圈和上、下压盖的加工。自88年3月份以来在精车外齿圈90°滚道时,出现明显的走刀波纹,且日益严重。滚道的加工要求见图1所示。由于精车后的滚道表面出现严重的走刀波纹,导致表面粗糙度、直线度达不到要求,因而不得不停机检修。通过边修边用,在修理实践中我们体会到造成严重走刀波纹的原因有以下三个方面,现分析于下,供机修同行于工作中参考。一、两对圆锥齿轮丧失传动精度加工90°滚道是由刀具的垂直进给和刀具的横向进给两个运动合成的,光杠的转动实现刀具的垂直进 East Germany DKZ2500 legislation car is the key equipment I plant production, crane has long been responsible for the outer ring and the upper and lower lid processing. Since March 88 in the fine outer ring gear 90 ° raceway, there are obvious walking ripple, and increasingly serious. Raceway processing requirements shown in Figure 1. As the finishing after the raceway surface serious walking ripple, resulting in surface roughness, straightness reach the requirements, which had shut down for maintenance. Through the edge trimming, in the repair practice, we realize that the cause of serious walking ripple in the following three aspects, is now analyzed in the next, for the repair counterparts in the work of reference. First, the two pairs of bevel gear loss of precision machining 90 ° raceway is fed by the vertical tool and the horizontal feed tool synthesis of two movements, the rotation of the light bar to achieve vertical tool