A Grinding Process for Double Half Inner Rings of Angular Contact Ball Bearing Rings with Oil Grooves

A technology for bearing inner rings and bearing rings, which is applied in the field of grinding and processing of double-half inner rings of angular contact ball bearing rings with oil grooves. Slip marks are reduced and the shape is accurate

Active Publication Date: 2018-10-02
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the double-half inner rings of the existing bearing rings are prone to sliding in the grooves of the double-half inner rings during work, the invention further proposes a grinding process for the double-half inner rings of the angular contact ball bearing rings with oil grooves

Method used

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  • A Grinding Process for Double Half Inner Rings of Angular Contact Ball Bearing Rings with Oil Grooves
  • A Grinding Process for Double Half Inner Rings of Angular Contact Ball Bearing Rings with Oil Grooves

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Experimental program
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specific Embodiment approach 1

[0031] Specific implementation mode one: combine figure 1 Describe this embodiment, the processing step of this embodiment is as follows:

[0032] 1. First, process several first bearing inner rings 1 one by one:

[0033] (1) Coarse grinding: Coarsely grind the upper and lower end faces, outer diameter, inner hole, and inner channel of the first bearing inner ring 1 to meet the size requirements;

[0034] (2) High-temperature tempering: perform high-temperature tempering on the inner ring 1 of the first bearing, and the tempering temperature is 500°C±5°C;

[0035] (3) Fine grinding: finely grind the upper and lower end faces, outer diameter and inner hole of the inner ring 1 of the first bearing to meet the size requirements;

[0036] ⑷. Machining axial oil guide groove 3: wire cutting axial oil guide groove 3;

[0037] (5) Low-temperature tempering: low-temperature tempering is performed on the inner ring 1 of the first bearing, and the tempering temperature is 135°C±5°C; ...

specific Embodiment approach 2

[0053] Specific implementation mode two: combination figure 1 This embodiment is described. In this embodiment, the processing equipment in step ⑽ of step 1 adopts high-precision numerical control internal grinding machine SUU130B. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0054] Specific implementation mode three: combination figure 1 This embodiment is described. In this embodiment, the processing abrasive tool in step ⑽ of step 1 adopts a Talile 89A180K5V60 (S) grinding wheel. Other steps are the same as in the first embodiment.

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Abstract

The invention discloses a grinding machining process of two half inner rings of an angular contact ball bearing ring with an oil tank, and relates to the field of bearing ring machining. The grinding machining process aims at solving the problem that two half inner rings of an existing bearing ring are likely to be subjected to channel sliding. The grinding machining process comprises the first step of gradually machining multiple first bearing inner rings and the second step of gradually machining multiple second bearing inner rings 2; the first step comprises the substeps of 1, coarse grinding; 2, high-temperature tempering; 3, fine grinding; 4, machining of an axial oil guide groove; 5, low-temperature tempering; 6, fine grinding of end faces and the outer diameter; 7, fine grinding of the inner diameter; 8, grouping; 9, initial workpiece detection; and 10, fine grinding of an inner channel; and the second step comprises the substeps of 1, coarse grinding; 2, high-temperature tempering; 3, fine grinding of end faces and the outer diameter; 4, fine grinding of the inner diameter; 5, machining of the first bearing inner rings and the second bearing inner rings; 6, grouping; 7, initial workpiece detection; 8, fine grinding of a channel; and 9, obtaining of the qualified two half inner rings of the angular contact ball bearing ring with the oil tank after fine grinding of the channel. The grinding machining process is used for grinding the bearing ring.

Description

technical field [0001] The invention relates to the field of mechanical processing of bearing rings, in particular to a grinding process for double-half inner rings of angular contact ball bearing rings with oil grooves. Background technique [0002] Three-point angular contact ball bearings for a certain type of aircraft engine, made of heat-resistant steel. The product structure is that the inner ring is a double-half inner ring with an axial oil guide groove. It belongs to the thin-walled ultra-light series and mainly bears axial force during use. Due to the harsh working environment, there have been many cases of serious sliding in the semi-inner raceways. In order to avoid this phenomenon, higher requirements are put forward for the processing quality of the bearing ring. Contents of the invention [0003] In order to solve the problem that the double-half inner rings of the existing bearing rings are prone to slippage during operation, the invention further propose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 唐双晶王大勇杨雪林赵生明韩东宇孙怀全高洋
Owner AVIC HARBIN BEARING
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