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Grinding process of thin-wall and long-roller roller surface

A grinding and roller surface technology, applied in machine tools, grinding/polishing equipment, and grinding machines designed for grinding the rotating surface of workpieces, can solve the problems of vibration lines, thermal deformation, etc., to ensure technical requirements and reduce vibration. grain, improve the effect of machining accuracy

Inactive Publication Date: 2012-04-11
SHANDONG CHANGHUA PAPER MAKING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the thin and long wall of this kind of parts, it is easy to be deformed by heat and produce vibration marks during processing. It is impossible to meet the requirements of use when processed by traditional processing methods.

Method used

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  • Grinding process of thin-wall and long-roller roller surface
  • Grinding process of thin-wall and long-roller roller surface
  • Grinding process of thin-wall and long-roller roller surface

Examples

Experimental program
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Embodiment 1

[0011] Embodiment 1 The grinding process of the thin-walled long roller roll surface

[0012] Film transfer sizing machine for papermaking machinery is an advanced equipment widely used in paper industry surface sizing in recent years. Paper sizing is uniform, easy to operate, and reliable. The key technology of film transfer sizing machine lies in During the winding process of the 0.4mm thin steel wire on the surface of the metering roller, whether the requirements of zero gap, uniformity, and consistency of tension between the rings can be guaranteed, so the grinding of the roller body before wrapping the steel wire is the key to ensure the quality of the metering roller links.

[0013] The diameter of this roller is 417mm, the length is 3500mm, the wall thickness is 15mm, the material is 316L, and the surface finish of the roller body is required to be Moreover, the cylindricity requirement is not greater than 0.025mm, and the runout tolerance relative to the reference ...

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PUM

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Abstract

The invention discloses a grinding process of a thin-wall and long-roller roller surface. The grinding process comprises the following steps of: during grinding, injecting a liquid substance to a cavity of a roller body; after the liquid substance is fully filled, raising the pressure to be 0.3-0.5MPa and hermetically maintaining the pressure; and then conventionally grinding, wherein the liquid substance is water. According to the grinding process disclosed by the invention, the defect of poorer rigidity of a hollow roller is overcome; and by injecting the liquid substance to the cavity of the roller body, maintaining a certain pressure and damping the liquid substance, the rigidity of the roller body and the grinding smoothness of the surface are increased, grinding chatter marks are eliminated and the grinding roundness and the processing efficiency are improved. The grinding process disclosed by the invention has the advantages of simpleness for operation, low cost, high precision, high efficiency and the like.

Description

technical field [0001] The invention relates to a novel grinding process for machining, in particular to a grinding process for the surface of a thin-walled long roll. Background technique [0002] In the papermaking machinery industry, various rollers are frequently used parts. The rollers play a vital role in the paper machine. The processing accuracy of the rollers directly affects the paper-making performance of the paper machine. Among them, there are some rollers that can meet the processing accuracy requirements of the rollers with ordinary equipment and traditional processing methods, but some key rollers on the key parts of the paper machine have a thin-walled long tube structure and a thin-walled roller surface that is several meters long. The roundness tolerance requirements are often not greater than 0.02mm, the runout tolerance requirements are often not greater than 0.05mm, and the smoothness requirements are Machining accuracy requirements are particularly h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/37
Inventor 李广伟王书云李广菊魏群力唐衍俊李清玲
Owner SHANDONG CHANGHUA PAPER MAKING MACHINERY
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