The Improvement of Detection Precision of Internal Surface Detection System of Main Cylinder

In view of the current status of the inspection of the main cylinder inner surface of the key components in the automobile brake system, an advanced inspection scheme integrating light, machine, electricity and calculation is put forward, the basic structure and the concrete implementation scheme of the detection system are given, and the geometric error elements are analyzed according to the working principle of the detection system, based on the theory of multi-body system and the principle of homogeneous coordinate transformation, the synthetic error model of the detection system is constructed, and the geometric error of the detection system is detected on-line by XL-80 dual-frequency laser interferometer, the existing geometric error data are obtained, the error compensation scheme of the detection system is put forward, and the error compensation verification of the detection system is carried out, it is proved that the proposed method can effectively improve the detection accuracy of the internal surface of the master cylinder.