中文摘要：

为了精化普通滚齿机,研制高精度蜗轮加工机床,利用传动误差传递理论,对机床传动链各环节进行了误差的分解与分析,提出一套针对滚齿机传动链环节的系统修正方法。以研制的机床测量系统为测试手段,根据精密测量和误差频谱分析结果,找出滚齿机的3个主要误差来源：锥齿轮引入的短周期误差、工作台蜗杆引入的短周期误差和工作台蜗轮引入的长周期误差。然后利用计算机辅助制造技术加工偏心轮和凸轮,对机床的各主要大误差环节逐一进行针对性的误差修正。经过多次＂测试-修正-再测试＂过程,最终机床的现场测试结果为：传动误差7.55″,周期误差4.23″,累积误差3.41″,试验表明已将一台普通滚齿机修正精化成为具有国内领先水平的高精度蜗轮母机。

英文摘要：

To improve the precision of common gear-hobbing machine and develop high-precision worm gear cutting machine,the errors are decomposed and analyzed for each part of the transmission chain based on the transmission error transfer theory,and a system correction method is presented for the transmission chain of gear-hobbing machine.According to the results of accurate measurement and error frequency-spectrum analysis obtained by the developed testing system for machine tool,three main error sources are found,namely,short-term errors introduced by bevel gears of machine tool,short-term errors introduced by worm of worktable,and long-term errors brought by worm gears of worktable.With computer-aided manufacturing technology for eccentric wheel and cam,the main errors are corrected one by one.After a series of test-correction-test cycle,the test results of machine tool in situ are that transmission error is 7.55,periodic error is 4.23 and cumulative error is 3.41.Experimental results show that a common gear-hobbing machine is refined to a high-precision worm gear cutting machine,being a top level one in China.