How to ensure the accuracy of linear guides?
I believe friends engaged in the non-standard automation industry should be familiar with linear guides. The application of linear guides is very extensive now. Linear guides, as a type of rolling guidance, are used to support and guide moving parts to perform reciprocating linear motion in a given direction.
When two linear guide slider pairs are used, there are generally two types: reference rail and driven rail. There should be two installation benchmarks for guide rails on a fixed platform, while a positioning surface for a side benchmark is required on a mobile platform. The slider on the driven side in the picture only needs to ensure the accuracy of the platform contact surface. During installation, the guide rail and slider are marked with reference planes, and it is necessary to align the reference planes of the guide rail and slider with the reference plane on the platform.
When designing, it is also necessary to consider the tolerance between the benchmarks of the two guide rails. Since the two guide rails are moving in a straight line, the parallelism between the two benchmarks must be ensured without affecting the smoothness of the linear motion. On the other hand, attention must be paid to the height of the reference and the size of the chamfer (if it is a step surface) during design. If the chamfer is too large, it will affect the accuracy of the guide rail, while if the height is too high, it will interfere with the slider.
HG Series,Linear Rails
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