Detection device of excircular surface defect of tapered roller

Abstract

The invention relates to a detection device of an excircular surface defect of a tapered roller. The detection device comprises a camera, a light source, a conveying mechanism and a driving mechanismfor driving the conveying mechanism to move, wherein the camera is used for shooting an image of a rolling body in the rolling process under coordination of the light source; the detection device is characterized in that at least one hole slot channel matched with the size and the position of a rolling body to be detected is formed in the conveying mechanism along the advancing direction of the rolling body to be detected; the conveying mechanism is placed on a stationary bottom plate; the rolling body to be detected is the tapered roller; the conveying mechanism is a trapezoidal hole slot array structure turnplate; the driving mechanism is an electric turntable; the hole slot channel consists of a plurality of trapezoidal hole slots which are formed around the circular center of the turnplate as a center; the trapezoidal hole slots are designed according to the size and the geometric structural features of the tapered roller; when the electric turntable drives the trapezoidal hole slot array structure turnplate to rotate, due to a friction between the tapered roller and the bottom plate, the tapered roller overturns in the hole slot.

Description

technical field [0001] The invention relates to an automatic detection device for defects on the entire surface of a rolling body. Background technique [0002] Rolling bearings are widely used in the fields of machinery, electric power, petrochemical, metallurgy, aerospace and military industries. The rolling element is the core element in the rolling bearing. Due to its existence, there is rolling friction between the relative moving surfaces. The types of rolling elements include balls, cylindrical rollers, tapered rollers, needle rollers, etc. The quality of rolling elements has a vital impact on the precision, motion performance, and service life of rolling bearings, and has a major impact on the motion state of the whole machine and even the entire production line. However, the processing of the existing rolling elements generally requires dozens of procedures, and some surface defects often appear during the processing, which seriously affects the quality and qualit...

AI Technical Summary

Problems solved by technology

However, the processing of the existing rolling elements generally requires dozens of processes, and some surface defects often appear during the processing, which seriously affects the quality and quality of the bearing and must be controlled.

Therefore, before the automatic assembly of rolling bearings, it is necessary to first detect the surface defects of the key parts of the rolling elements to avoid surface defects caused by processing, which will eventually cause serious damage to the mechanical device

[0003] At present, most bearing manufacturers use manual inspection to detect rolling element surface defects. This method is labor-intensive, low-efficiency, high-cost, and is easily affected by factors such as the technical quality, experience, visual resolution and fatigue of inspectors.

Some detection methods such as infrared flaw detectors are greatly affected by the external environment or operators, and the detection efficiency is low

Ultrasonic detection has strict requirements on the distance from the ultrasonic sensor to the workpiece and the positioning of the sensor, which is difficult to achieve in the factory environment

Images