转角跟踪误差对膛线拉削精度影响的分析
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Analysis on Influence from Following Error of Rotation Angle to Precision of Rifling Broaching
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    摘要:

    根据位置反馈控制系统的误差原理和缠角定义及其与膛线方程的关系,分析了采用C=F(z)联动算法的 LK6/LK8 型数控深孔螺旋拉床拉削膛线过程中,刀杆转角跟踪误差对于不同类型膛线缠角精度和宽度等指标的影 响,并给出了该误差与拉速、缠角、身管口径和伺服增益等参数关系的计算公式及降低其影响的应对措施。经实际 使用表明:该方法是正确的、有效的,可为采用类似算法的深孔变截面沟槽拉削的误差分析提供参考。

    Abstract:

    Based on the principle of error in position feedback control system, and the definition of the angle of twist and its relation with rifling equation, analyze influence from following error of tool bar rotation angle to indexes like angle of twist precision and width of different rifling, which are in the process of rifling broaching of the LK6/LK8 CNC deep-hole helical broaching machine when adopting C=F(z), the linkage algorithm. Present computational formula between the following error and parameters such as pulling velocity, angle of twist, caliber of tube, servo gain, as well as measures to reduce its effect. The method is proved to be accuracy and effective during application, and could be made reference to error analysis of similar algorithm during broaches of the deep-hole variational section slot.

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朱同兴,刘必标,张天佑,罗礁.转角跟踪误差对膛线拉削精度影响的分析[J].,2011,30(07):61-63.

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  • 收稿日期:2013-01-23
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