Detecting method for miniature roll balls

Abstract

The invention relates to a detecting method for miniature roll balls. Detection of the miniature roll balls (1) to be detected of different sizes and specifications is achieved with the help of a ball supporting plate (2) under the assist of a microscope. The ball supporting plate made of a transparent material is provided with a lower ball channel (3), ball placing holes (4), ball rotating holes (6) and a ball conveying groove (7) and matched with a ball rotating rod (5). The ball supporting plate and the ball rotating rod are wiped clean with aviation gasoline so as to guarantee cleanness of the miniature roll balls in detection. The ball supporting plate is arranged below the microscope and lightly placed in corresponding and marked ball placing holes according to the diameter of the miniature roll balls to be detected. Then the ball rotating rod is inserted into the ball rotating holes where the ball placing holes are located, at this time, the miniature roll balls to be detected contact the ball rotating rod, the ball rotating rod is rotated to enable the miniature roll balls to rotate, and whether the miniature roll balls to be detected meet quality requirements is observed through the microscope. The detecting method can observe surface quality of the miniature roll balls to be detected easily, fast and accurately, improves detecting efficiency and saves working intensity of the detecting staff.

Description

technical field [0001] The invention belongs to the technical field of bearing detection, in particular to a detection method for miniature rolling balls in miniature bearings. Background technique [0002] The diameter of miniature balls in miniature bearings is generally below 3.969mm, the diameter of commonly used miniature balls is below 2.381mm, the diameter of the smallest miniature balls is only about 0.3mm, and the weight of miniature balls is generally between 0.00011 and 0.0163 grams . If the miniature ball made of ceramics is lighter in weight, it is only about 40% of the weight of the same size miniature ball. [0003] The existing detection method is to place a micro ball on a flat plate under a microscope, and use small tweezers to continuously roll the micro ball to detect its surface quality. [0004] Due to the small size and light weight of the micro balls, when using a microscope to detect the surface quality of the micro balls, such as rings, surface wa...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects, the present invention provides a detection method for miniature rolling balls. The detection method can realize the detection of miniature rolling balls of different sizes by means of a ball holding board. Placement, rotation, transfer and easy loss, etc., and with the assistance of the microscope, the surface quality of the micro ball can be accurately and comprehensively detected, the detection efficiency is improved, and the work energy of the inspectors is saved.

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