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1·In the boring process of deep holes, the insufficient rigidity of the boring rod usually influences the machining accuracy.

在镗深孔加工中，常因镗杆刚度不足而影响加工精度。

2·Based on the research on micro movement and elastic gemels, a boring cutter micro compensation device amounted on the parallelogram elastic boring rod is developed with self owned intelligence right.

根据对用于镗孔加工刀具补偿的微位移技术的分析以及对柔性铰链机构的研究，研发了一套具有自主知识产权的平行四边形弹性镗杆结构的镗孔刀具微量补偿装置。

3·The axial flotation of chuck plays an important role in the protection of rod pipe threads and prevention of rod pipe stripping or cutterhead from dropping during the process of raise boring.

在天井钻进过程中，卡盘的轴向浮动对保护钻杆螺纹和防止钻杆脱扣、刀头坠落等方面具有重要作用。

4·The use of boring machine can be better to complete the processing of the small connecting rod.

利用金刚镗床可以较好的完成小连杆的加工。