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普通车床的尾座使用频繁,极易丧失精度,直接影响到产品的加工质量,用传统的方法加工,工作量大,效率低。针对这一实际问题,我们制作了尾座孔专用镗排,利用车床自身动力和传动系统,进行尾座孔的镗加工,效果很好。 1.镗排结构及制作要求镗排结构如附图,制作时应注意事项如下: (1)镗套1的内孔与外锥面应一次装夹磨加工,以保证其同轴要求。 (2)镗杆5直径应小于车床主轴孔最小孔径,选用材料40Cr,并经调质处理,提高镗杆材料的机械性能。现考虑多方面因素,推荐选择镗杆与镗套的配合尺寸为φ36(H6/g5);镗杆与镗杆座7的配合尺寸为φ
The use of the tailstock of an ordinary lathe is frequent and extremely easy to lose the precision, which directly affects the processing quality of the product and is processed by the traditional method. The workload is heavy and the efficiency is low. In response to this practical problem, we have tailor-made hole boring row, using the lathe’s own power and transmission system, tail hole boring processing, the effect is very good. 1. Boring row structure and production requirements Boring row structure as shown in the drawings, production should note the following: (1) bore bore bore 1 and the outer cone should be a clamping mill processing to ensure that its coaxial requirements. (2) The diameter of the boring bar 5 should be smaller than the minimum hole diameter of the spindle hole of the lathe, the material 40Cr is selected, and the quenched and tempered material is used to improve the mechanical properties of the boring bar material. Now consider many factors, it is recommended to choose the boring bar and boring sleeve with the size of φ36 (H6 / g5); boring bar and boring bar seat with the size of φ