| 摘要 |
A method for measuring errors in the linear feed shafts of a multi-spindle machine tool (10) having two or more rotating feed shafts, which are an A-shaft and a C-shaft, in addition to three linear feed shafts, which are an X-shaft, a Y-shaft, and a Z-shaft, wherein: at least first through third reflecting mirrors (56a-56d) are attached to a table (28) of the machine tool; a laser length-measuring machine (54) is attached to the tip of a principal shaft (22) of the machine tool (10); the linear feed shafts are driven, and the laser length-measuring machine (54) is moved to prescribed measuring points; the two or more rotating feed shafts are driven at each of the measuring points; the coordinates at each measuring point are calculated by measuring the distances between the first through third reflecting mirrors and the laser length-measuring machine; and errors in the linear feed shafts of the machine tool are obtained by comparing the machine coordinates of the machine tool at the measurement points and the coordinates obtained by calculating at the measurement points. |
