grinding wheel dressing method

Comparative advantages and disadvantages: ① dressing for a long time, low efficiency, diamond knife life is not long, you need anytime grinding. ② modification of accuracy depends on the mother plate and the moving components of the manufacturing and mounting accuracy sanding roll  and motion uniformity. In mass production is difficult to maintain the consistency of tooth. ③ lower production costs
Scope: The most widely used for single-line and multi-line wheel dressing for ball screws, ball nut, acme screw, a small batch
Methods: metal roller extrusion trim
Brief Description: Wheel Material CrWMn, hardness 65HRC, on the rollers to open several flutes. Rolling wheel to sandpaper roll  slow down when repair, wheel driven synchronously rotating rollers, roller by squeezing the wheel surface grit crushed or make it fall off.
Comparative advantages and disadvantages: metal roller is easy to manufacture, low cost, requires a thread grinding wheel deceleration devices. After dressing the grinding of the workpiece surface roughness higher accuracy than diamond toothed wheel. Metal roller easy to  abrasive disc wear, lower life.
Scope: For single-piece, small-batch production, low-precision or high-precision screw thread trimming coarse modification. Requirements threaded grinding wheel spindle has sufficient rigidity.