Automatic detection device for quality of brake pad

Abstract

The invention discloses an automatic detection device for the quality of a brake pad, which comprises a brake pad delivery mechanism, a multi-point automatic knocking module, a sound acquisition processing module and a brake pad screening module. A brake pad delivery module adopts a narrow conveyor belt to transmit the brake pad to a rear sound acquisition and screening part. A brake pad upward supporting device upward supports the brake pad transported to the knocked position to the position below a knocking hammer and ensures that the brake pad is exactly knocked by the knocking hammer, the multi-point automatic knocking hammer automatically and orderly knocks a plurality of position points, a sound signal is acquired by a pickup of the sound acquisition processing module and enters a computer for processing to judge the quality of the brake pad, and finally the screening module is used to reject the brake pad with defective quality according to a processing result. The device can quickly, automatically and accurately screen brake pads with defective quality, save a large quantity of manpower and material resources, and also avoid the error detection phenomenon of manual detection. The device can also be used for detecting the quality of other workpieces.

Description

technical field [0001] The invention relates to a device for nondestructively testing the quality of brake pads, in particular to an automatic quality detection device for brake pads. Background technique [0002] The most important safety system on a car is the braking system, and all braking components are safety parts. The braking of the car mainly uses the frictional duality formed by the friction force generated by the mutual pressing of the brake pads and the brake disc to generate braking torque and convert the kinetic energy of the car into heat energy. At this time, the brake pads and the brake disc The temperature will rise by 300-400 degrees. Therefore, in the application, the performance requirements of the brake pads are extremely high. The use of defective brake pads may cause the braking system to collapse at any time and cause a car accident. After the brake pads are manufactured, each brake pad needs to be inspected for quality to ensure "zero defect". ...

AI Technical Summary

Problems solved by technology

The shape of the brake pad is arc-shaped, so ultrasonic surface scanning must be used. The scanning area needs to cover the area of ​​the entire brake pad. The scanning process is more complicated and the cost of ultrasonic surface scanning is very high.

And there are some round holes on the brake pad itself, these holes will also be included in the scan, the existence of these holes will make the processing of the scanning structure more complicated

It takes a lot of time to scan a brake pad, and the quality inspection of brake pads is a full inspection

This will result in low detection efficiency but high cost

Images