How to handle precision ball screws that do not meet the required accuracy:

The precision inspection of the ball screw has been carried out when it is put into storage, which can eliminate its own quality issues. However, slender shaft parts (machine tool screws, etc.) should be placed vertically during storage to avoid being affected by gravity deformation and accuracy. The ball screw is vertically placed in a special packaging box and passes the static inspection after assembly, so this item can be ruled out.

Troubleshooting method for precision ball screw faults:

1. After using machine reaming for coarse reaming, a margin for precision reaming must be left before manual precision reaming

This method can correct the taper error after machine reaming, reduce the surface roughness value of the hole wall, improve the contact accuracy of the mating surface, and ensure sufficient friction torque.

2. During the reaming process, a cone pin should be used for trial assembly in a timely manner

The purpose is to facilitate the control of the reaming hole diameter by the ball screw. When the taper pin can be inserted by hand into about 80% to 85% of the pin length, the aperture is considered qualified; After cleaning the iron filings, oil should be applied to the tapered pin and then a copper rod should be inserted until it is flush with the surface of the workpiece to ensure sufficient friction torque and prevent loosening under load during use.

3. Conduct dust prevention treatment on the surface of the ball screw

During the process of drilling, reaming, and threading, the surface of the screw should be properly treated for dust prevention. Wrap the exposed part of the lead screw with a clean cloth to prevent dust from entering the drive surface of the lead screw, in order to extend the service life of precision components and improve assembly accuracy.