Method for measuring inside and outside diameter deflection of soft bearing retainer by means of three-point fix circle-formation

Abstract

The invention relates to a method for measuring inside and outside diameter deflection of a soft bearing retainer by means of three-point fix circle-formation. The measurement is conducted by adopting the principle of three-point fix circle-formation. Firstly, an adjustable hand wheel 1 is released so that spherical pivots 4 at two movable rods can move freely. Then, a tightening bolt 7 is released; a meter 6 is pulled outwards along a horizontal sliding groove on a meter bracket mother plate 8; a standard retainer subject to identification is horizontally placed on and stably contacted with a measurement mother plate 3; the positions of the two spherical pivots and a measuring head plate 5 are adjusted so that the spherical pivots and the measuring head plate can be closely contacted with the inside or the outside diameter of the standard retainer; the standard retainer is gently rotated by a hand so as to limitedly rotate within three points defined by the two spherical pivots and the measuring head plate, and meanwhile the meter is adjusted to be at zero; and according to the already-performed positioning, the retainer needing measurement is positioned on the measurement motherplate and then gently rotated for directly measuring whether the outside diameter deflection scope of the measured retainer, which is obtained directly from the meter, conforms to the required scope of the tolerance technique. The method is simple and novel and achieves strong universality, wide application scope and high measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of bearing measurement, in particular to a method for measuring the deviation of the inner and outer diameters of a soft bearing cage by positioning three points in a circle. Background technique [0002] Traditional bearing cages are generally made of hard materials such as steel or copper, and their inner and outer diameter deviations are measured by special measuring instruments. With the wide application of new materials, new technologies and new processes in the production of bearing cages, higher requirements are put forward for the detection methods of bearing cages, especially in the measurement of some such as resins, engineering plastics and some military special For soft materials such as materials or cages that are easily deformed or have complex structures, the existing measuring instruments or measurement methods are not suitable for soft cages, and the measured results are not accurate and rel...

AI Technical Summary

Problems solved by technology

With the wide application of new materials, new technologies and new processes in the production of bearing cages, higher requirements are put forward for the detection methods of bearing cages, especially in the measurement of some such as resins, engineering plastics and some military special For soft materials such as materials or retainers that are easily deformed or have complex structures, the existing measuring instruments or measurement methods are not suitable for soft retainers, and the measured results are not accurate and reliable

[0003] So far, there have been no relevant reports on the measurement of the inner and outer diameter deviations of soft cages

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