The existing camshaft cover burr cleaning equipment adopts fixed fixture,which is difficult to solve the problem of clamping stability caused by the inconsistency of die casting workpiece.In order to solve this problem,an adaptive control system for camshaft cover fixture positioning based on machine vision was designed.A machine vision measurement platform was built,and the image processing algorithm for camshaft cover aperture measurement was designed;the measurement error was compensated by using CMM,a vision measurement system was developed to realize the accurate measurement of camshaft cover aperture;the control program of STM32 motor was linked to complete the automatic adjustment of fixture positioning.The results show that the designed control system has high degree of automation and strong adaptability,the flexibility of deburring equipment can be improved by using the system.