The specialized production of bearing products determines the development of special CNC production lines according to the characteristics of the products. High precision, low noise, large batch, and low cost are the key to the production of electric motor bearings. At present, there are about 300 fully automatic grinding production lines for producing flanged deep groove ball bearings in China. The numerical control technology has greatly improved the manufacturing level of low-noise motors; the automatic grinding production line is currently shifting from the automatic production line of miniature and small bearings to the production of medium and large bearings. Automatic line extension. As a result, the requirements for numerical control technology are becoming more and more diverse, and the difficulty is also increasing. Active measurement technology, off-machine detection technology, error automatic compensation technology, automatic monitoring of manufacturing quality, numerical control timely transmission, quality analysis technology and other process control methods in the automatic production line.

The automatic line of bearing assembly (including automatic detection and automatic packaging of bearing finished products) has always been a problem that plagues technological progress. In famous foreign bearing companies, this technology has been successfully applied for many years. And domestic rely on import from abroad, and the use effect is still unsatisfactory. Therefore, the research and development of the automatic production line for bearing assembly and the organic connection with the automatic production line for grinding of bearings are of great significance for improving the production efficiency and product quality of bearings, reducing the number of bearing parts in the process flow, reducing the influence of manual intervention, and reducing costs. with. Since there are many varieties of bearings, different varieties, and automatic assembly lines have their own characteristics, the bearing industry has put forward requirements for the diversity of numerical control equipment for bearing assembly.

The manufacture of bearing rollers is still dominated by stand-alone machines in China. Famous foreign bearing companies produce continuously with automatic grinding lines. At present, a small number of domestic enterprises have introduced manufacturing equipment from Japanese companies, but due to high prices and high equipment depreciation costs, they cannot be promoted in China. Since the general requirements for bearing rollers are 1-2 μm, the requirements for 0-grade rollers are within 1 μm, and the requirements for surface quality are relatively strict. The bearing industry urgently hopes that the CNC equipment industry can provide stable, reliable, high precision bearing roller automatic grinding production lines and automatic cleaning and anti-rust packaging production lines, and realize automatic detection and automatic feedback on the automatic line to compensate for processing errors. Therefore, numerical control technology has a lot to do here. Since the types of rollers are divided into four categories: cylindrical rollers, tapered rollers, needle rollers and spherical rollers, the CNC industry should develop automatic production lines for different rollers according to the different characteristics and sizes of bearing rollers.

In the bearing manufacturing process, steel plate stamping dies for bearing cages and extrusion dies for plastic cages, stamping dies for various rolling elements, high-precision dies for stamping outer rings for needle cylindrical roller bearing, cold rolling dies for bearing rings and forging dies As well as the processing and manufacturing of bearing assembly molds, etc., high-efficiency and high-precision mold CNC equipment is required. Since the domestic CNC equipment cannot meet its function and precision, part of the high-precision mold CNC equipment in the bearing industry is imported, and some of them are solved by self-made equipment or modified equipment. There is a huge demand for domestic equipment, but the current share is low. the

Bearing steel balls are the most widely used rolling elements in the bearing industry. The post-process of steel ball production is automatic cleaning of steel balls, automatic appearance inspection (automatically rejecting unqualified products), automatic anti-rust, counting and packaging, which are also completed on automatic production lines abroad. The domestic bearing industry has invested a lot of energy. After more than ten years of hard work, it has made some progress, but there is still a big gap compared with the advanced level. Since some precision requirements of steel balls have reached nm level, the surface quality requirements are more stringent than those of bearing rollers, and the batch size is large, requiring high efficiency, high precision, high reliability and high cleanliness of equipment. Therefore, in this field, the bearing industry has a great demand, and the CNC equipment industry can do a lot.

With the continuous promotion and deepening of the transformation of traditional bearing manufacturing models with high-tech and advanced applicable technologies, digital technology has become the development direction of the wholesale bearing industry, and bearing processing equipment using digital technology has become the first choice for bearing companies to improve their equipment. At the same time, the high-precision, high-efficiency, special-purpose automatic production line has a good development prospect.