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Composite micro-texture guide rail and preparation method thereof

A technology of micro-texture and guide rail, which is applied in the direction of grinding slide plate, grinding frame, grinding bed, etc., can solve the problem of large gap of micro-porous texture, inability to fully exert the function of texture to collect wear debris, and insufficient lubrication Sufficient and other issues, to achieve low friction coefficient, reduce friction coefficient, improve the effect of bearing capacity

Active Publication Date: 2019-03-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent (Application No. 201710091772.4) discloses a preparation method of micro-textured self-lubricating guide rails. Micro-porous textures are processed on the guide rails by micro-electric sparks and filled with solid lubricants. insufficient
Chinese patent (Application No. 201711406914.8) discloses a combined micro-texture guide rail and its manufacturing method. Micro-grooves are processed between the micro-pits to improve the lubrication performance, but the texture cannot fully play the role of collecting wear debris.

Method used

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  • Composite micro-texture guide rail and preparation method thereof
  • Composite micro-texture guide rail and preparation method thereof
  • Composite micro-texture guide rail and preparation method thereof

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Experimental program
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Embodiment 1

[0045]The material of the fixed guide rail 1 is HT300 gray cast iron, and the arithmetic average deviation of the surface roughness profile achieved after grinding is Ra≤0.4μm; the laser is used to process micron-scale textured grooves perpendicular to the sliding direction on the upper surface of the fixed guide rail 1, The micro-textured groove includes the first section, the second section and the third section. The first section and the third section are semicircular grooves, the second section is a rectangular groove, and the second section is located between the first section and the second section. between the segments, and the diameters of the semicircular grooves of the first and third segments coincide with the short sides of the rectangular grooves of the second segment. The width of the textured groove is 50 μm, the spacing in the groove width direction is 200 μm, the length is 1000 μm, the spacing in the longitudinal direction is 1000 μm, and the depth is 50 μm; T...

Embodiment 2

[0048] The material of the fixed guide rail 1 is high-frequency quenched 45 steel, and the arithmetic average deviation of the surface roughness profile achieved after grinding is Ra≤0.4μm. Lasers are used to process micron-scale texture grooves perpendicular to the sliding direction on the surface of the fixed guide rail 1. The micro-textured groove includes the first section, the second section and the third section, the first section and the third section are semicircular grooves, the second section is a rectangular groove, and the second section is located between the first section and the third section. Between the second section, the diameters of the semicircular grooves of the first section and the third section coincide with the short sides of the rectangular grooves of the second section. The width of the textured groove is 30 μm, the spacing in the groove width direction is 100 μm, the length is 200 μm, the spacing in the longitudinal direction is 100 μm, and the dept...

Embodiment 3

[0051] The material of the fixed guide rail 1 is HT300 gray cast iron, and the arithmetic average deviation of the surface roughness profile achieved after grinding is Ra≤0.4μm; the laser is used to process micron-scale textured grooves perpendicular to the sliding direction on the upper surface of the fixed guide rail 1, The micro-textured groove includes the first section, the second section and the third section. The first section and the third section are semicircular grooves, the second section is a rectangular groove, and the second section is located between the first section and the second section. between the segments, and the diameters of the semicircular grooves of the first and third segments coincide with the short sides of the rectangular grooves of the second segment. The width of the textured groove is 10 μm, the spacing in the groove width direction is 20 μm, the length is 200 μm, the spacing in the longitudinal direction is 100 μm, and the depth is 10 μm; The...

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Abstract

The invention relates to the field of surface treatment of machine tool guide rails, in particular to a composite micro-texture guide rail and a preparation method thereof. Aiming at the technical problem that the surface performance of a composite guide rail needs to be improved, the novel composite micro-texture guide rail is provided. According to the composite micro-texture guide rail, micro-texture grooves are formed in the contact surfaces of a fixed guide rail body and a sliding guide rail body, the micro-texture groove perpendicular to the sliding direction is machined on the surface of the fixed guide rail body, and can be used for storing lubricating oil and collecting grinding chips, the micro-texture groove parallel to the sliding direction is machined on the surface of the sliding guide rail body, due to the fact that the flow guiding and dynamic pressure effects of the lubricating oil are achieved, the formation of a lubricating oil film is facilitated, and then the effects of enhancing lubrication, reducing friction and improving the performance of the guide rail are achieved.

Description

technical field [0001] The invention relates to the field of surface treatment of machine tool guide rails, in particular to a micro-textured guide rail and a preparation method thereof. Background technique [0002] As the main guiding and supporting components of machine tools, guide rails are one of the most critical basic components. Their precision and performance play a very important role in the machining accuracy, production quality, and service life of machine tools. However, the characteristics of large variation range of load and motion speed and long running time require the contact surface of the guide rail to have good wear resistance and lubrication performance. However, due to the lack of complete liquid friction, ordinary sliding guides have large frictional resistance, easy to crawl at low speeds, large wear, low service life, and unstable motion accuracy. In order to improve the performance of sliding guide rails, the guide rails are often treated with pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/02
CPCB24B41/02
Inventor 岳鸿志邓建新
Owner SHANDONG UNIV
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