1. High-speed grinding technology The general production efficiency can be increased by 30%60% on the durability of grinding wheels by about 0.71 times. High-speed grinding can achieve the two major goals pursued by modern manufacturing technology to improve product quality and labor efficiency. It is proved that: if the grinding speed is increased from 35m/ to 5060m/hr. The value of workpiece surface roughness parameter is reduced by about 50%. An important measure to achieve high-speed grinding, increase the power of the grinding wheel drive (transmission) system and improve the rigidity of the machine tool. The high-speed spindle unit is the most critical component of high-speed grinding machines. In high-speed grinding, the grinding wheel should have sufficient strength, but also to ensure that it has good grinding performance to obtain high grinding effect. 2. CBN wheel grinding technology The grinding wheel manufactured by it is called CBN grinding wheel, and the cubic boron nitride abrasive is referred to as CBN abrasive. It mainly has the following characteristics: (1) High hardness, high thermal conductivity, good thermal stability, and can withstand high temperatures of 1300-1500°C. (2) High durability, low wear, and a grinding ratio of 4000:10000, which is the ratio of the amount of material removed from the workpiece to the amount of wear of the grinding wheel. While ordinary corundum grinding wheels are only 50-80°C, the use of CBN for ring grinding is a new processing technology for China’s bearing industry. The application prospect is very broad, but the following technologies need to be researched and solved: CBN grinding wheel manufacturing technology, dressing technology, special bearing grinding machine and grinding coolant, etc. The use of CBN grinding wheel for bearing ring grinding, foreign countries have long been developed and applied in production, due to the CBN grinding wheel has good processing characteristics. And called it “a big revolution in the production and processing technology” since 1982, CBN grinding wheels have been used in Japan in large numbers, and high growth. 3. Automatic wheel balancing technology for external surface grinding Due to the large size and non-homogeneous structure of the grinding wheel, it is necessary for external surface grinding. The center of gravity of the grinding wheel system always deviates from the spindle center, and the high-speed rotation will definitely cause vibration of the grinding wheel system and the whole machine tool, which directly affects the service life of the machine tool. After the machine is turned on and quickly and directly forced to the most balanced position, the machine tool grinding wheel. The machine wheel is directly mounted on a mechanical or other automatic balancing device. This technological breakthrough promotes the development of grinding technology, and at the same time can greatly extend the life of grinding wheels, dressing diamonds and spindle bearings, reduce machine vibration, and temporarily adhere to the original accuracy of the machine. 4. Technology for the rapid elimination of internal surface grinding vacancy The level of internal surface grinding machine is of symbolic significance. This is mainly grinding bore diameter limits the grinding wheel size and the corresponding system mechanism collection parameters of all bearing grinding processing equipment. It fundamentally limits the rigidity of the process system, while its machining accuracy requirements are high. These require me to enter into an in-depth study of the process of internal and external surface grinding. In addition to maximizing the cutting capacity of the machine tool and grinding wheel, reducing the auxiliary grinding time is the key to improving the grinding efficiency, because the grinding air travel accounts for about 10% of the entire grinding time. 5 CNC numerical control technology and AC servo technology The servo amplifier is connected to the servo system, and the AC servo motor is connected to the positioning module of the PLC programmable controller. The servo motor itself is equipped with an optical rotary encoder, and its output signal is fed back to the servo amplifier to form a semi-closed loop control system. High speed (3000rpm and low speed operation can ensure the positioning accuracy, the use of servo systems can complete the fast jump, fast tendency, trimming to make up, coarse and fine grinding, so that the machine tool feed mechanism is greatly simplified, performance reliability greatly improved. 6. AC frequency conversion speed control technology The ratio of its starting and final linear speed is about 3:2, and the linear speed of the grinding wheel in grinding is now gradually reduced with the consumption of the grinding wheel. High linear speed grinding has been adopted in the field of grinding wheel grinding. In order to improve grinding efficiency and ensure consistent grinding quality, the programmable controller calculation function is used to calculate the grinding wheel radius after each dressing of the grinding wheel, and then calculate the inverter input frequency for maintaining the constant linear speed of the grinding wheel and transmit it to the AC inverter, thus ensuring constant linear speed of the grinding wheel.

We have rich experience on precision bearing manufacturing and are ranked NO.1 in China and NO.3 all over the world.

We can tailor the overall solution for the use of precision bearings.

HONB– Accountability & Innovation