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基于三角测量在线检测闭环控制烧蚀系统,以声光调Q YAG脉冲激光径向辐照方式进行青铜金刚石砂轮修整。根据砂轮表面的漫反射和成像情况,选取柱面透镜作为接收透镜,改进设计一套比较完善的接收光路系统,对此激光烧蚀系统进行了标定。依照标定结果调整电路,选取合理的激光和工艺参数进行砂轮修整试验。试验结果表明,经激光修整后砂轮精度有了明显的提高。在此基础上研究了激光-机械复合精密修整技术,即青铜金刚石砂轮通过激光修整后,再辅以机械法整形。该方法使修整精度进一步得到提高,同时使砂轮表面地形地貌得到了改善。
The closed-loop control ablation system was detected online based on triangulation, and the diamond diamond grinding wheel was trimmed by means of acousto-optic Q-switched QAG laser radial irradiation. According to the diffuse reflection and imaging conditions of the wheel surface, cylindrical lens is selected as the receiving lens, a set of perfect optical system for receiving light is improved, and the laser ablation system is calibrated. In accordance with the calibration results to adjust the circuit, select a reasonable laser and process parameters wheel dressing test. The test results show that the accuracy of the grinding wheel has been significantly improved after laser trimming. On this basis, laser / mechanical compounding precision dressing technology is studied, that is, after the bronze diamond grinding wheel is trimmed by laser, it is supplemented by mechanical shaping. The method further improves the dressing accuracy and at the same time improves the topography of the grinding wheel surface.