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根据零件油槽的特点,铜材料衬套可分为环形油槽和轴向圆弧槽两大类。轴向小圆弧槽衬套常采用插削、拉削、电火花、线切割和车削等加工方法。在起落架附件中,轴向油槽长度与油槽圆弧半径比大于15的零件占各类衬套的80%以上,采用插削和拉削加工需采购相应设备;采用电火花和线切割加工虽然能满足小圆弧槽衬套类零件加工要求,但加工成本高、效率低,不适合批量生产,为此需重新进行工艺规划。1钻削加工受力分析
According to the characteristics of parts tank, copper material bushing can be divided into two types of annular groove and axial groove. Axial small circular groove bushing often used cutting, broaching, EDM, wire cutting and turning and other processing methods. In the gear attachment, the length of the axial groove and oil groove arc radius ratio of more than 15 parts accounted for more than 80% of various types of bushings, broaching and broaching need to purchase the appropriate equipment; EDM and wire cutting although the processing Can meet the requirements of processing small arc groove bushing type parts, but the high processing costs, low efficiency, not suitable for mass production, this need to re-process planning. A drilling force analysis