Three-coordinate measuring instrument

The utility model belongs to the technical field of automatic detection, and particularly relates to a three-coordinate measuring instrument. The three-coordinate measuring instrument comprises a rack, a three-axis motion platform, a rotating joint, a jig used for installing a to-be-detected piece, a camera used for detecting the two-dimensional size of the to-be-detected piece, and an optical fiber laser head used for detecting the three-dimensional size of the to-be-detected piece. The jig and the three-axis motion platform are both installed on the rack, the rotating joint and the camera are both installed at the output end of the three-axis motion platform, and the optical fiber laser head is installed at the output end of the rotating joint. The automatic detection device is high in detection precision and high in detection efficiency. 本实用新型属于自动检测技术领域，特别是涉及一种三坐标测量仪。该三坐标测量仪包括机架、三轴运动平台、转动接头、用于安装待检测件的治具、用于检测所述待检测件二维尺寸的相机，以及用于检测所述待检测件三维尺寸的光纤激光头；所述治具和所述三轴运动平台均安装在所述机架上，所述转动接头和所述相机均安装在所述三轴运动平台的输出端，所述光纤激光头安装在所述转