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上海机床厂制造的 y2312伞齿刨,我厂安装投产后,加工精度迅速下降,修前对该机床加工的伞齿轮进行检查,精度勉强达到Ⅲ级、光洁度在△_5以下。为满足我厂工艺要求,尽可能提高其加工精度,在对该机床的修理及调试中,我们采用了如下措施:一、在床身前面容腔中间,加立柱支撑,并带有可调垫片。这样可提高机床刚度,减少导轨的变形。二、修正分度蜗轮付(蜗轮精滚一刀,精度达4级),提高安装精度。三、刀架座孔的配合,应保证靠紧后,间隙(指1∶50锥度)应控制在0.003。
Shanghai Machine Tool Plant manufacturing y2312 umbrella tooth planing, factory installed and commissioned, the processing accuracy decreased rapidly, before the pre-processing of the bevel gear inspection, precision barely reached Ⅲ level, the finish below △ _5. In order to meet the process requirements of our factory and improve the machining precision as much as possible, we adopted the following measures during the repair and debugging of this machine: 1.In the middle of the bed in front of the cavity, add the column support with adjustable mat sheet. This will increase the rigidity of the machine and reduce the deformation of the guide. Second, the revised sub-division worm gear (worm wheel precision knife, accuracy of 4), improve installation accuracy. Third, turret seat hole with the guarantee should be tight, the gap (referring to 1:50 taper) should be controlled at 0.003.