| As one of the most widespread foundation parts of machinery industry, the bearing's precision decides the performance of the entire mechanical device,therefore, the core studies of most enterprises and scientific research units have been concentrating in the detecting and control of the bearing's size precision while actually lack effective detecting methods regarding some unusual circumstances between neighboring working procedures when the bearing is under processing.This paper has carried on a comprehensive elaboration to the research significance, situation of current use and developing trends of the detecting and sub-selecting system of Bearing Rings. Based on the generalized analysis and comparison of the merits and drawbacks of current commonly used detecting methods, combine the demands and characteristic of most small and medium scale of individually-run enterprises, a kind of highly effective,reliable and inexpensive strategy is developed.Mechanical structure are designed relying on the analysis of system function. Principle of the whole system and its automatic control program based on PLC control unit are described. The system features functions such as automatic feeding, positioning, detection, eliminating defects,as a whole of which, the fully automatic online detection of missing procedure is achieved.This automatic check equipment for detecting and sub-selecting Bearing Rings is a type of mechanical contaction detective system based on the"PLC+ Pneumatics+ Sensor"mode technology. The entire mechanism is reliable, the hardware of electric and deployment of control system is simple, most of all, the cost is low.At present, this equipment has been commissioning in the enterprise. The result indicated this equipment can fully satisfy the demands of detecting and sub-selecting the unqualified bearing rings, also, it possess the characteristic of reliability , high efficiency and so on. This equipment is especially suitable for majority enterprises of small and medium scale. |