processingdetails

Centerless Grinding

Centerless grinding is a method that removing the useless material by grinding .And the centerless grinding is very similar to centered grinding,but the bigest difference between them is the absence of the spindle. It has high through-put, for instance,large number of parts can be manufactured in a short time. Centerless grinding can be generally classified into two types:the throughfeed grinding - the workpiece is fed into the machine along the work blade;the plunge grinding - the workpiece is placed between the wheels on a work blade and the grinding wheel is plunged into the workpiece.

In the process of centerless grinding, the workpiece is set up between the regulating wheel,which also can be referred as back up wheel, and the grinding wheel, and is supported by the work blade (or work rest). The work rest is located between the wheels. The work is placed upon the work rest, and the latter, together with the regulating wheel is fed forward, forcing the works against the grinding wheel. The axial movement of the work past the grinding wheel is obtained by tilting the regulating wheel at a slight angle from horizontal. An angular adjustment of 0 to 8 or 10 degrees is provided in the machine for this purpose.

Some of the benefits of centerless grinding include the ability to grind parts with geometries that do not allow them to be OD ground, the ability to remove three, five and other odd numbered lobing on the shaft of a part, and to maintain size beyond what is typically capable of an OD grinder due to the low overall pressures spaced out along the workpiece.