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Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing

A processing method and technology of protruding amount, applied in the direction of bearing components, shafts and bearings, metal processing equipment, etc., can solve the problems of low overall efficiency, low production efficiency, complicated and tedious matching process, etc., to improve matching efficiency and improve matching. efficiency, reducing waste

Inactive Publication Date: 2005-11-16
LUOYANG BEARING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method has low production efficiency and cumbersome production organization, and is only suitable for the production of high-precision, experimental product matching bearings
[0008] It can be seen that the above three methods have certain limitations, the overall efficiency is generally low, and the matching process is complicated and cumbersome.

Method used

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  • Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing
  • Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing
  • Manufacturing method of group-assorted bulge quantity of angular contacted ball bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment is an arrangement and installation form of paired back-to-back angular contact ball bearings, taking (7004AC / DB as an example), the matching steps of the protrusion amount are as follows:

[0038] 1. Calculate the protrusion δ of the non-reference end of the inner sleeve to the reference end of the outer sleeve

[0039] According to the formula

[0040] δ = δ 0 + δ 1

[0041] = C - ai - ae + 1 / 2 4 g ( R i + Re - Dw ) - g 2 + δ 1

[0042] Substituting...

Embodiment 2

[0056] This embodiment is an arrangement and installation form of paired face-to-face angular contact ball bearings, taking (7004AC / DF as an example), the matching steps of the protrusion amount are as follows:

[0057] 1. Calculate the protrusion δ of the non-reference end surface of the outer sleeve to the reference end surface of the inner sleeve

[0058] Because the single set of 7004AC bearings is exactly the same as Example 1, only the pairing form is different, and the calculation of its protrusion is the same as that of Example 1 (calculation omitted).

[0059] 2. Trial repair of 100 pieces, (repair the non-reference end face of the coat) according to the size of 12 -0.11 -0.12 Grinding, inspection.

[0060] 3. Combine and assemble the ferrules of the trial repair part, measure the protrusion amount, and record the protrusion amount value at the same time.

[0061] 4. Analyze the value and distribution of the protruding amount of the product after the trial repair. ...

Embodiment 3

[0065] This embodiment is an arrangement and installation form of paired tandem angular contact ball bearings, taking (7004AC / DT as an example), the matching steps of the protrusion amount are as follows:

[0066] 1. This model is exactly the same as the examples 1 and 2, but the matching form is different, and the calculation of the protrusion amount is slightly

[0067] (calculation with embodiment 1)

[0068] 2. According to its unique matching form, we hope that its protrusion δ may be close to zero, so as to achieve the effect of "universal matching". Therefore, 800 pieces are tried to be repaired, including 400 pieces of inner and outer rings, all of which are non-reference end faces, and the size is 12 -0.09 -0.10 control.

[0069] 3. Combine and assemble the ferrules of the trial repair part, measure the protrusion amount, and record the protrusion amount value at the same time.

[0070] 4. Analyze the value and distribution of product protrusion after trial repair...

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Abstract

The present invention provides a processing method of projection quantity of selectively-paired angular contact ball bearing. Said method includes the following steps: calculating projection quantity must be pre-repaired before assembly of batch single-set bearing parts; before assembly, according to the calculation value trail-repairing partial parls by using plane machine tool; assembling trail-repaired parts, measuring projection quantity, according to the projection quantity distribution condition of trail-repaired parts regulating repairing and grinding data, and repairing and grinding all the residual parts by utilizing plane machine tool.

Description

Technical field [0001] The invention belongs to the technical field of bearing processing, and mainly relates to a processing method for the protrusion of an assembled angular contact ball bearing. Background technique [0002] Angular contact ball bearings can bear combined radial and axial loads at the same time, and can also bear pure axial loads, and can work at higher speeds. Therefore, it is widely used in occasions such as machine tool spindles and electric spindles that require high precision and high speed. In order to improve bearing capacity, rigidity and rotation accuracy, angular contact ball bearings are usually used in combination with two or more bearings, and a certain preload is generally applied to the bearings during operation. There are three known arrangements for producing duplex angular contact ball bearings: back-to-back (DB type), face-to-face (DF type) and tandem (DT type). Such as Figure 1-3 Shown: back-to-back (DB type) is symmetrically instal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/64
Inventor 化跃红彭涛王雨秋刘国良吴立华李薇张丹丹
Owner LUOYANG BEARING GROUP
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