How to reduce the defect rate of screw surface through equipment optimization in automated teeth rubbing machines?

The core of the improvement of surface defects by automated tooth rubbing machines lies in "process standardization" and "precise parameter control". In the stamping process, the equipment drives the feeding mechanism through a servo motor to ensure that the position error of the blank entering the mold does not exceed 0.02 mm each time, avoiding "side compression" caused by positioning deviations during manual feeding; during the tooth rubbing process, the pressure sensor equipped by the automation equipment can monitor the contact force between the tooth rubbing wheel and the screw in real time, and automatically reduces the speed adjustment when the force exceeds the preset threshold, reducing "thread surface scratches" from the root. More importantly, the built-in visual inspection module of the equipment can scan the screw surface immediately after processing is completed, and automatically trigger the sorting mechanism when defects are found, which will remove the unqualified products immediately to avoid flowing into the next process.

After the introduction of the fully automated stamping and rubbing machine, the defect rate of the screw surface has dropped from 4.2% to 0.8%. In addition to the accuracy advantage of the equipment itself, the "stable processing environment" brought by automated production is also critical - the closed processing chamber of the equipment reduces the attachment of external dust, and the constant temperature control system avoids the difference in material ductility caused by temperature changes. These details together constitute the guarantee of "low defect rate". In addition, the automatic mold lubrication system of the equipment can accurately spray lubricant according to the processing frequency, which not only avoids "oil residue defects" caused by uneven artificial lubrication, but also reduces lubricant waste, achieving dual optimization of quality and cost.

For manufacturers, the value of reducing the surface defect rate is far more than improving the pass rate. In areas such as new energy vehicles and precision instruments that require extremely high screw quality, every 0.1 percentage reduction in the defect rate means that the return risk of downstream customers is reduced by about 8%. The "quality stability" formed by automated teething machines through equipment optimization is becoming the core competitiveness of enterprises to obtain high-end orders.