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A method for manufacturing a thin-walled wear-resistant shaft sleeve

A manufacturing method and a shaft sleeve technology, which are applied in the field of mechanical processing, can solve problems such as inner wall deformation and shaft sleeve out-of-roundness, and achieve the effect of avoiding out-of-roundness

Active Publication Date: 2019-12-06
宁波奥辰机械科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there is a shaft sleeve with a length of 56mm and a side wall thickness of 1.2mm. The tolerance of its length is only ±0.005mm. Due to the long length of the bearing and the thin side wall, conventional clamping is adopted, that is, the outer wall is clamped, and then Then process the end faces and the inner wall at both ends separately. Using this method will cause the bushing to be out of round, that is, the outer wall and the inner wall will be deformed; in addition, because the tolerance of the length is 56mm is only ±0.005mm, if multiple clamping is used And separate turning, can't guarantee this kind of high precision tolerance

Method used

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  • A method for manufacturing a thin-walled wear-resistant shaft sleeve
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  • A method for manufacturing a thin-walled wear-resistant shaft sleeve

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] Such as Figure 1-8 As shown, the manufacturing method of the thin-walled wear-resistant bushing of the present invention includes the following steps: the first step of heat treatment: put the blank of the bushing 1 into the furnace, start to heat up to 700 ° C within 30 minutes, keep it warm for 1 hour, and then perform annealing, The annealing temperature is 300°C, and the furnace is released at room temperature; through this step of stress relief annealing, the metal undergoes internal local plastic deformation under the action of a certain temperature, and when the stress exceeds the yield strength of the material at this temperature, or a local relaxation process, when the stress When it is less than the yield strength of the material at this temperature, the residual stress is relaxed to achieve the purpose of elimination. After holding for a period of time, ...

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Abstract

The invention discloses a manufacturing method of a thin-wall abrasion-resistant shaft sleeve. The method comprises the following steps that firstly, heat treatment is conducted; secondly, an outer circular is machined, specifically, the shaft sleeve is turned to be in a truncated-cone shape, the outer diameter of the first end of the shaft sleeve is larger than the outer diameter of the second end, and the inner diameter of the sleeve is the same; thirdly, the two ends and the inner wall are machined: fourthly, a coating is processed; fifthly, surface treatment is conducted, specifically, theouter surface of the shaft sleeve is ground through a high-precision grinding machine for 40 minutes until the surface roughness of the shaft sleeve reaches Ra0.1; and sixthly, a notch is machined, specifically, the second notch of the end of the shaft sleeve is machined through a milling cutter. Through the method, shaft sleeve out-of-round clamping can be avoided, the inner wall and the two ends are turned through one-time clamping, and the length dimension is ensured.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a method for manufacturing a thin-wall wear-resistant shaft sleeve. Background technique [0002] At present, there is a shaft sleeve with a length of 56mm and a side wall thickness of 1.2mm. The tolerance of its length is only ±0.005mm. Due to the long length of the bearing and the thin side wall, conventional clamping is adopted, that is, the outer wall is clamped, and then Then process the end faces and the inner wall at both ends separately. Using this method will cause the bushing to be out of round, that is, the outer wall and the inner wall will be deformed; in addition, because the tolerance of the length is 56mm is only ±0.005mm, if multiple clamping is used And separate turning, can't guarantee this kind of high-precision tolerance well. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/04B23B5/00C21D9/00B24B19/00
CPCB23B5/00B24B19/00C21D9/00F16C33/04
Inventor 周佩达
Owner 宁波奥辰机械科技有限公司
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