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研究了机床可靠性与维修性，并进行了统计分析计算。结果表明，其可靠度函数呈指数分布，维修度函数呈二参数威布尔分布。平均无故障时间ＭＴＢＦ为４４９ｈ．平均修复时间ＭＴＴＲ为２２．１ｈ．各子系统中，方刀架的可靠性最好，电器系统的可靠性最差；电器系统的维修性最好，主轴箱的维修性最差。上述结果可为机床制造和机床使用提供参考。
The reliability and maintainability of the machine tool are studied, and the statistical analysis and calculation are carried out. The results show that the reliability function is exponential distribution and the degree of maintenance function is two-parameter Weibull distribution. Mean time between failures MTBF is 449h. The average repair time MTTR was 22.1h. In each subsystem, the square knife rack has the best reliability and the worst reliability of the electrical system. The maintenance of the electrical system is the best, and the maintenance of the spindle box is the worst. The above results provide a reference for machine tool manufacturing and machine tool usage.