Linear guide technology development and interchangeability

- Nov 29, 2019-

Linear guide technology development and interchangeability

From the perspective of technological development trends, what are the characteristics of linear guides?


1. The application of composite processing machine tools is extensive, the speed of direct drive technology is also accelerating, micro-manufacturing technology is emerging, low-temperature processing technology has entered practical use, green manufacturing technology has just started, and technological development is an important form of green manufacturing technology. Facing the development of new world machine tool technology, China's machine tool industry is facing three major strategic changes: the main work of industrial transfer is the important industry of the national economy, the core manufacturing service, and the high-end CNC machine tools that continuously increase the domestic market share come over. Increase the market share of CNC systems and functions.


2. The hardened steel as the guide rail is placed on the plane of the equipment after grinding. Compared with the planar guide rails, the number of linear guide rails is also due to the need to process the guide rails. For the purpose of sliding the moving elements, the shape and number of the grooves depend on the function of the machine tool. For example, a rail system that accepts both linear forces and overturning moments is more confusing than rails that only accept linear forces. There is a big difference in the description. The linear guide is a kind of rolling guide, which makes the steel ball infinitely roll the loop between the slide and the guide rail, so that the load platform can easily move linearly along the guide rail with high precision, and its friction coefficient can be reduced to the traditional sliding guide 1 /50, making it easy to achieve micron positioning accuracy.


What are the friction modes and interchangeable characteristics of linear guides?

When linear guides using linear guides have high positioning accuracy, linear guide rails collide conflicts, not only the collision coefficient drops to 1/50 of the sliding bearing, but also the space between projector rentals, dynamic resistance and static resistance become very small. Therefore, when the bed is working, there is no sliding surface, and the positioning accuracy of the micrometer level can be achieved. It can withstand the up, down, left and right direction of the load. Because the linear guide is a special package, the layout can be designed to withstand the up, down, left and right direction of the load, and the surface of the side load that the sliding guide can withstand is light, and the working accuracy of the machine is easy to break. . When the assembly is simple and interchangeable, only the equipment rail surface milling or grinder table is necessary, the rails and sliders are fixed on the machine table with specific torsional forces according to the recommended steps and can be reproduced with high precision in machining. Conventional sliding guides require shovel on the working track, which is cumbersome and time consuming, and once the machine is of poor precision, it requires another shovel.