Date: 2013-08-20

About the problem of double face grinding of bearing rings

Double end grinding end bearing rings is on a surface grinder with two wheels and two face grinding the workpiece machining method.
Compared with the single axis of grinding mode, double end grinding grinding two surface steps into one step, because the step to reduce the number of less mobile time and auxiliary time. Automatic measurement, automatic loading and unloading. Not only improves the production efficiency, but also reduces the labor intensity of workers. From the grinding accuracy, another advantage is that it is easier to get higher machining accuracy. In the single head vertical surface grinder, the workpiece need two times, two times the processing, the positioning error of grinding wheel position error, relative to the magnetic table and magnetic table inequality are reflected to the ferrule end face. While the double end grinding, the surface machining is the positioning surface. And the two end surface of a grinding, which avoids the orientation error and machining error, also does not exist the workpiece deformation caused by the magnetic table uneven and magnetic processing errors caused by the lack of. Practice has proved, in the processing of small ring, ring width variation of its precision is better than vertical surface grinding accuracy. In addition, double end grinding in a pipelined manner continuous grinding ring, easy to realize automation, as well as into automatic production line. Because the grinding without magnetic chuck, more appropriate government cut thin workpieces, and save the demagnetization and other auxiliary work, reducing labor intensity.
Many kinds of double face grinding, according to the motion of the work, can be divided into the following five categories:
1 straight through type.
Straight through the working principle of this is a kind of high efficiency and easy to realize automation of the best grinding method, the applicable scope to ring workpiece shapes simple, such as bearing ring, gasket, piston ring.
2 circle arc through.
Arc through the principle is a kind of high efficiency and easy to realize automation of grinding mode . This mode is mainly applied to the small irregularly shaped workpiece, such as small bearing rings, micro ring, roller etc..

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