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本文介绍了３米Ｃ级精度滚珠丝杠磨削过程中的几个关键技术，提出了传动链误差预报补偿的改进方案，并以神经网络为基础，建立工件热伸长误差补偿系统。
This paper introduces some key technologies in the grinding process of 3-meter C-class precision ball screw, proposes an improved scheme of error compensation in the transmission chain, and builds a thermal elongation error compensation system based on neural network.