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通过对航天产品小孔加工精度进行分类总结,阐述了在全功能数控车床加工高精度小孔困难的原因;分析了影响全功能数控车床钻小孔精度的几项因素;针对分析出的几项因素提出了改进措施,并着重针对“钻头的精密安装方法”这条主要措施进行详细介绍;有效解决了数控车床加工高精度小孔误差大的问题,提高了零件合格率,并可使用在铰孔、螺纹孔等类似加工中,使数控车床的高效作用得到了充分发挥。
Through the classification and summary of the processing precision of small holes in aerospace products, the reasons for the difficulty in processing high precision small holes in a full-function CNC lathe are expounded. Several factors that affect the accuracy of small holes in a full-function CNC lathe are analyzed. Factors put forward improvement measures, and focus on “precision installation of drill ” This main measure is introduced in detail; effectively solve the problem of high precision small hole error of CNC lathe processing, improve the qualified rate of parts, and can use In reaming, tapped holes and other similar processing, so that the efficient role of CNC lathes has been given full play.