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我厂微型轴承套圈沟道加工大多是以外圆定位,因此,套圈外圆的几何精度直接影响沟道的几何精度,而沟道的精度好坏又直接影响着轴承质量的好坏。所以,提高外圆精度是很重要的。我们在党支部的领导下,对套圈的真圆度问题进行了探讨。一、无心磨床精磨以后的几何精度我们分别对60024、60025、80026、18和29等型号轴承的内、外圈在日本圆度仪(E-RT-1C-C)上,进行了测试(放大倍数10,000倍,滤波器挡位:150波/每周),发现无心磨后的套圈不圆度在1.6～2.8微米之间,波纹度也比较大(见图1、2),另外,
The machining of the miniature bearing ring in our factory is mainly based on the positioning of the outer circle. Therefore, the geometric accuracy of the outer circle of the ring directly affects the geometric accuracy of the channel, and the accuracy of the channel directly affects the quality of the bearing. Therefore, to improve the accuracy of the outer circle is very important. Under the leadership of the party branch, we discussed the issue of the roundness of the ferrule. First, the geometric precision of the centerless grinding machine after grinding We were on the 60024, 60025, 80026, 18 and 29 and other types of bearings inside and outside the ring on the Japanese circularity meter (E-RT-1C-C) were tested Magnification of 10,000 times, the filter gear: 150 wave / week), found that after the heartless grinding ring non-circularity between 1.6 to 2.8 microns, waviness is relatively large (see Figure 1,2), in addition,