Aluminium base built-in raceway roller guide pair

Abstract

The invention discloses an aluminium base built-in raceway roller guide pair. The aluminium base built-in raceway roller guide pair is provided with an aluminium base guide rail and an aluminium base sliding block, wherein a guide rail part is composed of a guide rail base body 1 and two high hardness steel raceways 2 inlaid on the two sides of an internal groove of the guide rail base body; a sliding block part comprises a sliding block base body 3, a fixed roller group 4 and an adjusting roller group 5, and the fixed idler wheel group 4 is fixed after installation; the adjusting roller group 5 is provided with an eccentric shaft 7, the operation gap or pretightening force of idler wheels can be adjusted, and a hold-down nut 8 in an upper part counterbore B3 is locked after adjustment; and the structure of the sliding block part is simple, the sliding block base body 3 is made of an aluminium alloy material, only the roller groups 4 and 5 are made of steel material, the weight of the whole sliding block part is light, and a slide guide base body 2 has larger sectional area and good lateral stiffness. The aluminium base built-in raceway roller guide pair provided by the invention has the characteristics of light weight, small inertia, low cost, rapid speed, low noise, operation stability and the like, and is suitable for a high speed straight-line motion device in various complex environments.

Description

technical field [0001] The invention provides an aluminum-based built-in raceway roller guide rail pair, which belongs to the field of machinery manufacturing and application, relates to linear guide rails, and is suitable for IT industry and industrial automation industry. Background technique [0002] The currently widely used ball linear guideway has a structure of a whole piece of steel guideway and a whole piece of steel slider body, and the precision raceways in contact with the balls are directly processed on the steel guideway and steel slider body, so this Form of linear guides will have the following disadvantages: [0003] 1. High material cost: The raceway surface in the slider body needs to have high precision, high hardness and high wear resistance, so the entire guide rail and slider body need to be made of more expensive high-alloy steel materials, such as bearing steel, etc. ; [0004] 2. The manufacturing process is complicated and the processing cost is ...

AI Technical Summary

Problems solved by technology

[0003] 1. High material cost: The raceway surface in the slider body needs to have high precision, high hardness and high wear resistance, so the entire guide rail and slider body need to be made of more expensive high-alloy steel materials, such as bearing steel, etc. ;

[0004] 2. The manufacturing process is complicated and the processing cost is high: In order to provide a high-precision and high-hardness track surface, the large-volume steel guide rail and steel slider body need to undergo complex heat treatment processes during the processing process, and finally the guide rail needs to be processed. surface for precision grinding;

[0005] 3. Heavy weight, large inertia, high energy consumption, high investment and use costs of peripheral equipment: the heavier steel slider has a large inertia in motion, especially in high-speed motion, in order to ensure the firmness of the overall moving parts, Its peripheral structure should also be correspondingly thick, and the weight and inertia of the overall moving parts are greater. To achieve the design speed, a larger power must be provided, and the device for transmitting power should also be relatively thick, resulting in a larger weight of the entire equipment. Increased equipment cost and operating energy consumption

[0006] In addition, there is now an aluminum steel raceway roller guide rail slider that is basically the same in shape as the original steel ball guide rail slider on the market. The section of this kind of guide rail is basically the same as that of steel guide rail, and the strength of aluminum alloy cannot be compared with that of steel, so this kind of guide rail has the disadvantage of poor rigidity. In addition, the raceway surface exposed on both sides of the guide rail base is easy to be polluted or injured. Therefore, the requirements for the use environment are higher

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