A cast iron guide rail combined with multi-structure different-distance bionic surfaces and its regeneration method

Abstract

The invention relates to a multi-structure different-interval bionic surface combined cast-iron guide rail and a regeneration method thereof. First bionic coupling elements and second bionic coupling elements are made on mild wear areas and a severe wear area of the guide rail working face; the first bionic coupling elements are strip-shaped or net-shaped bionic coupling elements, and intervals of the first bionic coupling elements in the mild wear areas are larger than those of the first bionic coupling elements in the severe wear area; the second bionic coupling elements are pit-shaped coupling elements and are distributed among the first bionic coupling elements. According to the multi-structure different-interval bionic surface combined cast-iron guide rail and the regeneration method thereof, according to the rigidity or stress distribution situations of the areas with different wear degrees, two double-coupling-element bionic surfaces with changeable intervals are set, a multi-structure different-interval bionic surface combination with different anti-wear performances is formed, and the surface of which the rigidity or the stress is distributed evenly is obtained, so that the effect that the overall anti-wear performance of the surface is uniform and stable for a long time is achieved. In addition, by means of the interaction between the two coupling elements and a machine body, the wear resistance of the sliding guide rail is further improved.

Description

technical field [0001] The invention belongs to the technical field of cast iron guide rails, and relates to a regenerated cast iron guide rail and a regenerative repair method thereof. Background technique [0002] In the machinery industry, machine tools are usually referred to as machine tools, which are the basic processing equipment in the machinery manufacturing industry. Its variety, performance, quality and technical level directly affect the performance, quality, production technology level and economics of other mechanical and electrical products. benefit. my country is the largest machine tool consumption market in the world. It currently has about 8 million machine tools. According to the internationally accepted 3% reduction rate, about 250,000 old machine tools are eliminated every year, and the total metal weight exceeds 1.5 million tons. For an old machine tool, there are generally more than 45% to 80% residual value, mainly the durable bed, column, base, et...

AI Technical Summary

Problems solved by technology

Since ordinary cast iron guide rails can only be applied after the surface is subjected to high-frequency quenching to enhance the wear resistance, and the surface quenching will inevitably lead to a gradient distribution of hardness and stress along the depth direction of the quenched layer at 1 to 5 cm, after a long period of non-uniform After wear and tear, in order to achieve uniform distribution of surface hardness and stress, it is necessary to remove all surface quenched layer structures. However, at this time, the use size of the guide rail is difficult to meet the use standard, which has caused certain difficulties for the regeneration of the guide rail.

In the past, many repair methods used the method of discarding the surface quenched structure with uneven distribution of surface mechanical properties and then filling the material to achieve its regeneration. These regeneration methods lead to a lot of waste of raw materials.

In addition, these regeneration methods only simply enhance the wear resistance of the surface, but do not match the actual non-uniform wear method well, losing the flexibility of regeneration

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