本文件参照ISO 230-1规定了内孔式拉床的几何试验，内孔式拉床的水平Z轴提供了主要的切削运动。 它还规定了与上述试验相对应的适用公差，适用于正常精度的卧式内孔拉床。 本文件解释了卧式内拉床的概念、结构和常见特征。它还提供了相关术语和轴的名称。 它只涉及机器精度的验证。它不适用于机器的运行测试（例如振动、异常噪音、部件的粘滑运动），也不适用于机器特性（例如速度、进给），因为此类检查通常在测试精度之前进行。

This document specifies, with reference to ISO 230？1, the geometric tests on internal type broaching machines with horizontal Z-axis providing the main cutting motion. It also specifies the applicable tolerances corresponding to the tests mentioned above for normal-accuracy horizontal internal type broaching machines. This document explains concepts or configurations and common features of horizontal internal type broaching machines. It also provides related terminology and designation of axes. It deals only with the verification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components), nor to machine characteristics (e.g. speeds, feeds) as such checks are generally carried out before testing the accuracy.