New technology and process equipment bearing grinding
1. Widely used high speed grinding technology, the inner surface of grinding wheel when linear velocity can reach 60 ~ 80 m/s; When the surface grinding wheel linear velocity can reach 120 m/s.
2. The improvement of grinding wheel grinding linear velocity, puts forward new requirements for the dynamic balancing of grinding wheel, thus tell grinding machine adopts the grinding wheel dynamic balance device to compensate for tell grinding of grinding wheel unbalance.
3. In order to adapt to the requirements of bearing ring grinding automation, CBN grinding wheel grinding technology adopted in the bearing ring grinding. Compared with common grinding wheel, the wear ratio as high as 4000 ~ 10000, equivalent to about 150 times of common grinding wheel grinding efficiency is high, especially suitable for high speed grinding automation.
4. As the material bearing grinder lathe bed is made of artificial granite, due to its strong rigidity, ant-vibration performance is good, low thermal conductivity and the advantages of short manufacture cycle and gradually been adopted by the world's machine tool manufacturers.
5. Main shaft and bearing grinding wheel spindle head frame by using frequency conversion device, controlled by a PC or CNC programming device, can be stepless speed regulation to achieve maximum and sales, the best processing quality and maintain a constant linear velocity of grinding wheel.
6. Cut into improving grinding technology development, measuring feedback (inductance active measurement) system, the application of computer makes plunge-cut grinding, size measurement and feedback control of a closed loop system.
7. Along with the development of hydraulic components, bearing ring grinding machine hydraulic system is updated, the widespread use of variable vane pump, the work of the hydraulic oil temperature control in the above the level of the room temperature of 5 ℃, hydraulic system overcomes the influence on the machining accuracy of machine tool work accuracy and product.
8. To merge two processes on the same grinding machine grinding compound grinding technology has been applied in the bearing ring grinding, ensures the high machining accuracy, and greatly improve the machining efficiency of products.
9. Because of the numerical control technology and its hot line components (servo motor, super precision roller screw and encoder, etc.) the rapid development of technology, making the PC and CNC control technology in bearing ring grinding machine control system, are used in great quantities of CNC system for bearing ring grinding institutions movement parameter and the entire machine cycle programming control, storage and modified; A straight line or arc grinding wheel dresser by NC coordinate the requirement of forming grinding wheel dressing.
