Elastic supporting structure type bearing outer ring finish lapping machining method

A technology of bearing outer ring and structure type, which is applied in the field of fine grinding and processing of elastic structure type bearing outer ring, which can solve the problems of low product precision, achieve the effect of improving stability and meeting processing conditions

Active Publication Date: 2020-04-17
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low product precision in the manual polishing of the existing elastic structure type bearings, and provide a fine grinding processing method for the outer ring of the elastic structure type bearings

Method used

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  • Elastic supporting structure type bearing outer ring finish lapping machining method
  • Elastic supporting structure type bearing outer ring finish lapping machining method
  • Elastic supporting structure type bearing outer ring finish lapping machining method

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine Figure 1 to Figure 7 , this embodiment is a fine grinding method for the outer ring of a spring-supported structure type bearing, which is specifically completed according to the following steps:

[0023] 1. Design special tooling: ①. Mat of lapping machine: Pad A of lapping machine is composed of machine tool installation part 1 and bearing contact part 2. Machine tool installation part 1 is designed according to BS122 lapping machine installation requirements, and bearing contact part 2 is Plane type, the radial cross-sectional size of the bearing contact part 2 is designed in conjunction with the elastic support structure type bearing size, the thickness of the tire pad A of the lapping machine is 10mm, and the thickness of the bearing contact part 2 is 5mm; ②, special C-type fulcrum : The radial section size of the special C-type fulcrum is designed according to the installation requirements of BS122 finishing machine, and ...

specific Embodiment approach 2

[0030] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the process of rough grinding the bearing outer ring described in step 4 is as follows: use Dalman CB9 oil stone as the finishing oil stone to rough grind the bearing outer ring, and rough grind the bearing The operating parameters of the outer ring: the rough grinding time is 15s, the spindle speed is 233rpm, the oilstone oscillation frequency is 1088Hz, and the oilstone pressure is 1.5MPa. Others are the same as the first embodiment.

specific Embodiment approach 3

[0031] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the process of finely grinding the outer ring of the bearing described in step 4 is as follows: use Dalman CB9 oil stone as the fine grinding oil stone to finely grind the outer ring of the bearing, The operating parameters of the fine grinding bearing outer ring: the fine grinding processing time is 15s, the spindle speed is 433rpm, the oilstone oscillation frequency is 988Hz, and the oilstone pressure is 1.5MPa. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses an elastic supporting structure type bearing outer ring finish lapping machining method, and relates to the elastic supporting structure type bearing outer ring finish lappingmachining method in order to solve the problem that in existing elastic supporting structure type bearing manual polishing, the product precision is low. The finish lapping machining method comprisesthe steps that firstly, specialized tools are designed, specifically, the specialized tools comprise a finish lapping machine tyre cushion, a specialized C-shaped fulcrum and a fulcrum gasket, the finish lapping machine tyre cushion is composed of a machine tool installing portion and a bearing contact portion, and the fulcrum gasket is composed of a bearing outer ring clamping portion and a C-shaped fulcrum connecting portion; secondly, pre-machining is conducted, and a bearing outer ring to be subjected to finish lapping is obtained; thirdly, assembling is conducted; and fourthly, finish lapping is conducted on the bearing outer ring, and an elastic supporting structure type bearing outer ring is obtained. The elastic supporting structure type bearing outer ring finish lapping machiningmethod has the advantages that the purpose that finish lapping is conducted on the elastic supporting structure type bearing outer ring by adopting the BS122 finish lapping machine is achieved; and the technical requirements such as the straightness and the roundness of the machined product meet the requirements of a finished product, and the qualification rate reaches 95% or above. The elastic supporting structure type bearing outer ring finish lapping machining method is mainly applied to elastic supporting structure type bearing finish lapping.

Description

technical field [0001] The invention relates to a fine grinding processing method for the outer ring of a spring-supported structure type bearing. Background technique [0002] The elastic support structure bearing is a new generation of elastic support, under-ring lubrication and oil film damping integrated bearing, which has the characteristics of complex structure and difficult processing. In particular, the finishing raceway (channel) process is the most critical process for whether the elastic support structure bearing can meet the requirements of use. [0003] Such as figure 1 The outer ring of the elastic support type bearing shown has an overall width of 76.5mm and an outer diameter of 53mm. The width is three times that of conventional bearings, and the diameter-to-width ratio is close to 1:1.5. Since the height of the product exceeds the processing range of the company's lapping equipment, the lapping process of the existing elastic support type bearings mainly a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B5/04B24B5/35
CPCB24B1/00B24B5/04B24B5/35
Inventor 张凯张振明马文良刘泓铄张绍群薛雪赵立新杜晓峰孙喆
Owner AVIC HARBIN BEARING
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