Angular contact ball bearing outer ring groove position instrument measuring method

Abstract

The invention includes steps: selecting outer ring with deep channel of ball bearing in relevant near type under same curvature and diameter of channel; measuring size of channel position of ball bearing with deep channel precisely; after calculating filtration obtains standard component of channel position for outer ring of angular contact ball bearing; using channel position checking-gauge for ellipticity of channel diameter of ball bearing carries out detection of channel position for batch products by reading meter under same instrument through method of comparison. Characters are: (1) changing observational measurement to quantitative measurement; (2) easy of operation, quick measuring and visual display; (3) high precision; (4) reflecting real deviation of channel position; (5) saving cost for preparing template.

Description

technical field [0001] The invention belongs to an instrument measuring method for the groove position of the outer ring of a ball bearing. The invention mainly relates to an instrument measuring method for the groove position of the outer ring of the angular contact ball bearing. The actual deviation value of the groove position of the outer ring of the angular contact ball bearing can be read directly on a detection instrument by using the method. Background technique [0002] The structural features of the outer ring of the angular contact ball bearing are shown in Figure 1. Point b is a point on the center line of the groove. The groove-shaped arc ab near the reference end face 1 is longer, while the groove-shaped arc bc close to the non-reference end face 2 is due to the locking amount (that is, the radial radius difference between bc ) is only a few tenths of a millimeter and appears very short. [0003] In the bearing industry, the groove position deviation Δa e Th...

AI Technical Summary

Problems solved by technology

[0005] 1. It can only be judged qualitatively, but cannot be measured accurately or quantitatively;

[0006] 2. When the process requirements are relatively loose (±0.05mm or so), and the groove position is processed at the limit, as shown in Figure 1, the light transmission gap between the ab arc and the large-scale model is relatively large due to the large wrap angle α Larger, it is easier to judge whether there is a light gap through, but the wrap angle β between the bc arc and the small fan model is very small, the light gap is very weak and difficult to judge

Judgment varies from person to person, resulting in misjudgment of the actual ditch position from time to time;

[0007] 3. When the position tolerance requirements are strict, the visual (eye view) error itself can no longer meet the product requirements;

[0008] 4. Due to the low illuminance of natural light or machine tool lighting used on the processing site during random inspection, the light passing through the gap is relatively weak, which will directly affect the accuracy of judgment;

[0009] 5. The cost of sample production is high, the cycle is long, and the operation is cumbersome, resulting in slow detection process

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