Linear guide rolling guidance 2

impact on the accuracy of the lower groove of the guide rail. In order to adapt to the impact of various machine tools on the guide rail, meet the requirements of stable operation, and improve the shock absorption effect, it is necessary to design the fatigue strength of the installation and connection bolts of the guide rail pair reasonably. The company measured the deformation of the groove under the guide rail through experiments with different installation pitch of screw holes and sinking depth of threaded holes. It can be seen that the pitch of the mounting screw holes and the depth of the threaded holes have a significant impact on the accuracy of the lower groove of the guide rail. Choosing the appropriate pitch of the mounting screw holes and the depth of the threaded holes is very important for improving the accuracy of the rolling linear guide pair.
(3) Research on ultra precision positioning devices. Through experimental research, Erjian Mao has achieved ultra precision transmission at the 1nm level using a feed device consisting of a rolling linear guide pair and a linear motor. At the same time, the theoretical analysis of the nonlinear characteristics of the rolling linear guide pair at small displacements provides a basis for the design of precision transmission devices composed of rolling linear guide pairs. two The linear motion unit realizes the modularization and standardization of the linear motion platform, and users can choose the appropriate type and stroke according to the needs of the job content to form different structures. Linear motion units are commonly used in automation and precision measurement, such as XYZ multi axis platforms, automatic assembly and transportation systems, semiconductor manufacturing equipment, and optoelectronic products. The continuous use environment temperature of the linear motion unit can reach 80 ℃, and the short-term operating temperature can reach 100 ℃. If all forces and moments are within the maximum value of the linear motion unit, it can be installed in any position in principle. The feed rate of the linear motion unit can reach up to 60-90m/min, with an acceleration of 0.6-2.0g and a positioning accuracy of 20-25. In the future, linear motors that replace linear drives will have a feed rate of 80~200m/min, acceleration of 1~10g or more, and positioning accuracy of 0.5~0.005 (or even higher). In this way, higher requirements have been put forward for the rolling linear guide pair used in conjunction. three In order to meet customers' requirements for delivery time, accelerate capital turnover, and reduce costs, the production of interchangeable guide rail series is the best way. That is to say, guide rails and sliders can be manufactured and stocked separately, and corresponding order contracts can be organized and assembled from inventory standard products for short-term delivery. In addition, interchangeable products are also very convenient for customers to maintain and replace.