Ultrasonic phased-array automatic detection device for disk workpiece

Abstract

The invention discloses an ultrasonic phased-array automatic detection device for a disk workpiece. The ultrasonic phased-array automatic detection device comprises a frame, a workpiece mounting baseand a phased-array ultrasonic probe, wherein the workpiece mounting base is used for mounting the disk workpiece; the phased-array ultrasonic probe is located above the workpiece mounting base and isused for detecting the disk workpiece mounted on the workpiece mounting base; a rotation and lifting driving mechanism for driving the workpiece mounting base to perform lifting motion and rotationalmotion is arranged below the workpiece mounting base; a spraying mechanism used for spraying a coupling agent onto the surface of the to-be-detected disk workpiece is arranged above the workpiece working base; a probe lifting mechanism used for driving the phased-array ultrasonic probe to perform the lifting motion is arranged above the phased-array ultrasonic probe; the two sides of the workpiecemounting base are respectively provided with conveying belt mechanisms which are mutually parallel and further synchronously run; and the two ends of the conveying belt mechanisms are provided with anon-defective product falling position and a defective product falling position respectively. The ultrasonic phased-array automatic detection device for the disk workpiece, which is provided in the invention, can be used for realizing nondestructive detection and online screening which are performed on the disk workpiece, and has the advantages of being high in detection efficiency and low in detection cost.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic nondestructive testing, in particular to an ultrasonic phased array automatic testing device for disc-shaped workpieces. Background technique [0002] In the production and processing process of the gear plate of the automobile gearbox, various manufacturing defects may inevitably occur due to objective factors such as welding process problems, welder operation problems or welding machine equipment problems. At present, visual and measuring tools are generally used to measure surface defects, but only a small amount of unqualified products with surface defects can be screened out. Long-term large-scale visual inspections will cause visual fatigue of quality control workers, and they are prone to slack and missed detection. In fact, there will be more welding defects such as pores, slag inclusions, incomplete fusion, and incomplete penetration inside the weld, which cannot be detected by visual...

AI Technical Summary

Problems solved by technology

At present, visual and measuring tools are generally used to measure surface defects, but only a small amount of unqualified products with surface defects can be screened out. Long-term large-scale visual inspections will cause visual fatigue of quality control workers, and they are prone to slack and missed detection

[0004] 1) It is a destructive test, the process is complicated, time-consuming and labor-intensive

However, the gear workpiece is complex, high-strength, and difficult to test. It is impossible to conduct internal inspection of all positions. It is very likely that the workpiece that is considered qualified actually has defects in the uncut part.

And after the test, no matter whether the workpiece is qualified or not, it can no longer be put into use, and the detection cost is high

[0005] 2) It takes a long time, and once the sampling is unqualified, the entire batch of workpieces needs to be scrapped, which leads to high cost and low production efficiency

[0006] 3) Use sampling instead of the whole, and if the number of samples is small, it cannot be effectively compared

However, it is difficult to carry out complex workpieces, and there is radiation in this method, which endangers personal safety, the equipment is large in size, and the detection process is complicated, etc.

Due to the special structure of the gear weld seam, the weld seam position is blocked by a relatively thick gear. If a wire film is used for filming, the gear must be milled and then photographed. Therefore, it is impossible to use ray technology for this type of gear weld seam.

Images