The main function of the brake disc connecting sleeve used on the head drive part of mine scraper conveyor is the connection between the reducer and the motor.The processing position of the connecting parts not only has the precision and tolerance requirements,but also has 60 degrees circumference uniform requirements.Therefore,in the milling machine processing must be reliable positioning and precision.For this purpose,a special processing device for milling brake disc connecting sleeve is designed.The device has the advantages of accurate positioning,safety and reliability,and convenient loading and unloading.It can not only ensure the size,precision and roughness requirements of the workpiece being processed,but also significantly improve the processing quality and efficiency.