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我厂的曲轴斜油孔四轴钻削组合机床,在工件一次装夹中可自动钻削4个φ5×115深孔和铰削一个φ10D孔。由于多方面的原因一直未能用于生产。 我们在调试过程中,在学习兄弟单位经验的基础上,组织了有制造、机修和使用人员参加的攻关组,对深孔钻削的过扭矩保护问题进行了探讨;对分级进给机构和液压系统作了重新设计,采用双联泵供油,行程调速阀实现快进至工进的转换的分级进给机构,避免了各动
I crankshaft oblique hole four-axis drilling combined drilling machine, a fixture in the workpiece can be automatically drilled 4 φ5 × 115 deep hole and reaming a φ10D hole. For many reasons has not been used for production. In the course of debugging, based on the experience of our brother units, we organized the research group with the participation of manufacturing, mechanics and users to discuss the over-torque protection of deep-hole drilling. We also studied the grading feed mechanism and hydraulic System has been redesigned, the use of double pump oil supply, travel speed valve to achieve fast-forwarding to the work of the conversion of the hierarchical feeding mechanism to avoid the movement