The problems existing in the traditional conductive slip ring manufacturing method have been difficult to meet the needs of the current industrial development for precision conductive slip rings. The vacuum epoxy resin method easily causes the insulation resistance to drop, which brings inconvenience to the assembly. This process also requires filling with glue. The cost is high, and the quality of the glue has a great influence on the overall strength and insulation of the conductive slip ring, which may cause the fluctuation limit of the dynamic contact resistance to not meet the requirements. Because the thickness of the diaphragm changes unevenly after heating and pressing, the lamination method easily causes the conductive ring to tilt. At the same time, it is difficult to ensure the spacing between the conductive rings during the stacking process, so that the gap between the slip rings cannot meet the accuracy requirements. There is a new manufacturing method based on precision turning. The stability of the insulating ring is directly guaranteed by precise turning, and the method of directly drilling the micro-groove in the micro-hole and winding the wire ensures the transmission of the electrical signal. When the conductive ring is formed after the electroplating is completed, the final forming of the conductive slip ring is completed through the secondary processing process, which not only ensures the accuracy of the conductive slip ring, but also ensures the invariance of transmission, which can meet the requirements for the fluctuation of the contact resistance. And slip ring spacing accuracy requirements conductive slip rings.

The main functional parameters of the precision conductive slip ring are affected by the load and speed. The conclusions drawn from the comparison test are as follows: when the load is constant, the wear rate of the conductive ring coating decreases continuously with the increase of the rotational speed. When the rotational speed is 300rpm, the wear rate decreases rapidly and then reaches a constant state; when the rotational speed is constant, the wear rate of the conductive ring coating decreases. The wear rate increases with increasing load. When the load is constant, the friction coefficient of the conductive ring coating decreases with the increase of the rotational speed; when the rotational speed is pressed, the friction coefficient of the conductive ring coating decreases with the increase of the load. When the load reaches 0.3N, the friction coefficient has increasing trend. to a constant value. When the speed is constant, the contact resistance of the conductive slip ring decreases with the continuous increase of the load; when the load is constant, the size of the contact resistance is hardly affected by the speed. By examining the coating profile, it can be seen that the life of the conductive slip ring is higher at low loads.