High-speed grinding modern manufacturing technology to pursue two main objectives to improve product quality and labor efficiency. Practice has proved that: If the grinding speed is increased to 50 from 35m / s to 60m / s, the production efficiency can be improved by 30% to 60%, an increase of about 0.7 to 1 times the wheel durability, the surface roughness parameter value decreases about 50%.
    General grinding speed of more than 45m / s referred to as high-speed grinding. Domestic developed to I eighties, ZYS-811 automatic bearing internal grinder on behalf of the first domestic bearing industry ferrule grinding application of high-speed grinding technology, supporting successfully developed a high stiffness, high speed, high power spindle and high-speed grinding wheel. The high-speed grinding at home and abroad has long been widely used, and with the widespread adoption of high grinding ratio, high durability super abrasives such as CBN, the grinding wheel speed has reached 80 to 120 m / s, or even higher. Such as: Germany Mikrosa, Japan KOYO centerless grinder, Japan TOYO bearing grinder, the outer surface of the grinding wheel speed up to 120 m / s, the inner surface of the grinding line speeds of up to 60m / s to 80m / s.
    Increased wheel drive (drive) system power to improve the rigidity, an important measure to achieve high-speed grinding, high-speed grinder the most critical component in its high-speed spindle unit. High-speed grinding, grinding wheel should have sufficient strength, but also need to ensure that a good grinding performance in order to obtain high grinding effect. In addition, the cooling means is one of the indispensable means to achieve high-speed grinding.
The outer surface of the grinding wheel balancing technology
    The outer surface grinding, grinding wheel is large and non-homogeneous tissue body, wheel center of gravity of the total deviation from the axis of the heart, high-speed rotation would inevitably lead to the grinding wheel system and the whole machine vibration directly affect the service life of the machine. In this case, the grinding would be difficult to achieve high precision, easy to cause the workpiece surface grinding chatter, waviness increases.
    Installed directly on the machine grinding wheel mechanical or other means automatic balancing device to boot quickly and directly approaching the position of the most balanced, self-balancing more perfect and also omitted wheel static balance. The technological breakthroughs to promote the development of grinding technology can greatly extend the limits grinding wheel dressing diamond and spindle bearing life, reduce machine vibration, long-term accuracy of the original machine.
Rapid elimination of the inner surface of the grinding empty process technology
    All bearing grinding processing equipment, the level of the inner surface grinder has a symbolic meaning. The main grinding aperture limits the wheel size and the corresponding set of system agencies parameters, fundamentally limits the process system rigidity, while its high precision processing. This requires us to enter an in-depth study of the internal surface grinding process to reduce the auxiliary grinding time, in addition to the maximum limit play machine grinding wheel cutting ability, the key to improve the grinding efficiency, because the grinding air-way total grinding time about 10%.