three lines cut into the feed grinding wheel

This method machine adjustment and wheel dressing more convenient, radial cutting force is small, the workpiece thermal conditions are good, high precision machining, grinding acme screw up to three (JB/T2886-1992) highest accuracy, the surface roughness 0.2 to 0.4 microns. You can screw up a different angle grinding, teeth opened a different, a different aspect ratio of the workpiece, suitable for processing a variety  PCD grinding wheel of precision thread and ball screw, but the production is less efficient than multi-line grinding wheel, commonly used in single-piece, small-batch production.Over 2 wire feed grinding wheel vertical As a multi-line grinding of the cutting comb teeth also participate can be completed in a single pass of the workpiece grinding, high production efficiency, but is difficult molding wheel dressing, the large pitch, a large helix angle of the thread and the teeth shaped high precision thread should not be used, suitable for carbide grinding wheels  mass production of grinding teeth is simple, lower-precision thread.
 More than three lines cut into the feed grinding wheel
 This method is suitable for grinding small pitch, small thread lead angle, low precision and stubby threaded parts, and on the threaded grinding wheel spindle and the workpiece clamping tile cutting blades  rigidity demanding.Width of grinding wheel grinding force, grinding power, first of all wheel drive motor power have a reasonable margin. In addition, the main components of the machine should have high accuracy and sufficient rigidity. If higher precision grinding wheel spindle, spindle elongation cantilever should be as short as possible