Linear guide rolling guidance

detection function of magnetic grid digital display. The magnetized steel strip is attached to the side of the guide rail, while the magnetic head that picks up the signal is fixed to the slider of the guide rail pair and moves synchronously with it. The minimum resolution of the magnetic grid measurement system is 0.001, the accuracy is 0.005, and the maximum moving speed is 3m/min. The maximum length of the guide rail can reach 3000mm, with a reference point set every 50mm. The Monorail rolling linear guide pair has the following characteristics: ① compact structure, easy installation, and small space occupation; ② Due to the measurement system being installed inside the guide rail, errors are significantly reduced and the accuracy of length measurement is improved; ③ Sealing the magnetic grid inside the guide rail increases the anti-interference ability of the measurement system. The development of micro rail pairs is aimed at medical, semiconductor manufacturing, and measuring devices. Three standard products with rail widths of 1mm, 2mm, 4mm, and other models (length 100mm) have been developed, which have the following characteristics: ① Ultra small: the smallest cross-sectional size and highly reliable ultra micro product in the rail pair series. It meets the requirements of lightweight and space saving equipment; ② Low rolling resistance; ③ Capable of withstanding loads in all directions; ④ Excellent corrosion resistance: The guide rails and ball bearings are made of martensitic stainless steel, which has excellent corrosion resistance and is most suitable for use in medical equipment and cleaning workshops. The development of high-precision technology
Optimization design of transition curve. Japanese scholars have found through experiments that the design of the loop of the rolling linear guide secondary ball directly affects the high-frequency vibration and changes in dynamic friction force during feed motion. The frequency of changes in dynamic friction force is related to the diameter of the steel ball, indicating that the steel ball generates impact friction force when entering and exiting the working raceway. The author explored the transition curve form of the sliding block circulation circuit of the rolling linear guide. Using a given gap method, the steel ball circulation circuit adopts a circular arc-shaped concave cylindrical groove, and the center line of each cylindrical surface (i.e. the center trajectory line of the grinding wheel) adopts multiple segments of single and double circular arc spline curves, which are optimized. It is of great significance to improve the precision of linear feed by ensuring a smooth and continuous change in the load of the ball without sudden changes, reducing the impact, and thus reducing the high-frequency vibration amplitude of the dynamic friction force.