Linear guide rail

Abstract

The invention relates to a linear guide rail suitable for preventing a sliding block after impact from rebounding. The linear guide rail comprises a guide rail body, the sliding block, and a buffer arranged at the left end of the guide rail body. The buffer comprises a cylinder body, a cylinder cover is arranged at the open end of the cylinder body, a piston rod penetrates through the cylinder cover, a piston rod assembly is arranged at the right end of the piston rod, and the left end of the piston rod is fixedly connected with the left end of the guide rail body. In the buffering work process, the right end surface of the cylinder body is used as the contact surface impacting the sliding block. An electromagnet is arranged in the side wall of the cylinder body. A pressure sensor is arranged on the right end surface of the piston rod assembly and connected with a processor module. When the sliding block impacts the right end portion of the cylinder body, according to medium pressure values, the processor module controls a current drive module to output currents matched with the medium pressure values for attracting the sliding block. When detecting that the medium pressure values are equilibrium values, the processor module controls the current drive module to stop outputting the currents, and therefore the sliding block is released.

Description

technical field [0001] The invention relates to a linear guide rail, in particular to a linear guide rail suitable for preventing a sliding block from rebounding after impact. Background technique [0002] Linear guide rails are widely used in various precision CNC machine tools and machinery manufacturing industries, and their performance directly determines the accuracy and use effect of CNC machine tools. [0003] Most of the traditional linear guides include a guide rail and a slider. The slider is limited on the guide rail body and can slide relative to the guide rail body. A pulley is arranged inside the slider, and the slider realizes sliding on the guide rail body through the movement of the pulley. [0004] The disadvantage of the above-mentioned prior art is that when the slider is rapidly displaced to the end of the guide rail on the guide rail body, it is easy to collide with the limit block or other objects at the end of the guide rail, so a buffer needs to be p...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned prior art is that when the slider is quickly displaced to the end of the guide rail on the guide rail body, it is easy to collide with the limit block or other objects at the end of the guide rail, so it is necessary to set a buffer at the end of the guide rail

[0005] However, when the slider hits the buffer, due to the excessive impact energy, the piston in the buffer has no time to work, causing the slider to rebound. How to avoid this scene is a technical problem in this field.

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