论文部分内容阅读
在一般农机修造厂中,车削加工细长轴比较困难。特别是当长度和直径比很大时,由于工件刚度差,车削时易出现弯曲、振动、竹节、棱形、锥度等毛病而致使工件报废,甚至不能加工。北京清河毛纺织厂修配车间的工人师傅,总结了一套车削加工方法,能成功地加工φ4×1500～2000毫米、φ25～30×3000～5000(要求弯曲度不太高时)毫米的细长轴。加工工件的光洁度达▽7,全长范围内精度在0.01～0.03毫米内。生产率也较高,一般一根φ12×1200毫米的20号钢细长轴,粗、精加工共需25分钟,最快的只需15分钟。加工时所需的刀、卡、量具很简单,二、三级车工都能较快地掌握。
In general farm machinery repair shop, turning slender shaft is more difficult. Especially when the length to diameter ratio is very large, the workpieces are scrapped or even can not be processed due to the poor rigidity of the workpieces and the easy bending, vibration, slubbing, prism, taper and other defects during turning. Beijing Qinghe wool textile factory workshop repair workers master, summed up a set of turning machining methods, can be successfully processed φ4 × 1500 ~ 2000 mm, φ25 ~ 30 × 3000 ~ 5000 (less than the required curvature of mm) slender axis. Machining the workpiece finish ▽ 7, the full-length range of accuracy within 0.01 ~ 0.03 mm. Productivity is also higher, generally a φ12 × 1200 mm 20 steel slender shaft, rough, finishing a total of 25 minutes, the fastest only 15 minutes. Need to process the knife, card, measuring tool is very simple, two, three turner can grasp faster.