Movable high-accuracy silk material ultrasonic detection system

Abstract

The invention discloses a movable high-accuracy silk material ultrasonic detection system, which consists of a substrate platform (1), a clamping mechanism (2) and a detection mechanism (3), wherein the clamping mechanism (2) and the detection mechanism (3) are arranged on the substrate platform (1). The system is characterized in that: the detection mechanism (3) consists of a detection unit (31) and an axial moving unit (32); and the detection unit (31) is flexibly connected with the axial moving unit (32), has a degree of freedom in the radial direction of a silk material, and axially rigidly moves along with the radial movement of the silk material when the silk material moves radially. The movable high-accuracy silk material ultrasonic detection system changes the structural form of a conventional detection apparatus, effectively reduces a missed alarm rate and a false alarm rate, and realizes the digital operations of clamping, rotation and scanning and defect signal acquisition and processing by using private control detection software, thereby realizing the high-flexibility and high-efficiency automatic detection, recording and evaluation of internal defects, surface defects and near surface defects of the silk material.

Description

technical field [0001] The invention relates to an ultrasonic detection technology for wire materials, and in particular provides a mobile high-precision ultrasonic detection system for wire materials. Background technique [0002] Wire has a wide range of applications in aviation, aerospace, medical and other fields. Because of the very harsh environment of use, there are very high requirements for the quality of wire materials. In the process of smelting and rolling, wire materials sometimes have defects such as cracks, pores, and inclusions. If such defects cannot be detected, It will seriously affect the safety of the product and cause serious consequences. [0003] At present, the ultrasonic testing method is recognized as one of the most effective wire testing methods. The existing ultrasonic inspection system is mainly designed and manufactured for the flow-type production inspection of large factories, and mostly adopts "non-digital spiral forward mechanical scanni...

AI Technical Summary

Problems solved by technology

This method has the following problems: (1) The speed of the wire spiral can only be controlled within a certain range, and the parameter setting error is large

(2) The wire can only spiral forward in one direction, and the scanning form is single, which is not conducive to the qualitative determination of defects

(3) The whole system is bulky

This method has the following problems: (1) The probe, coupling sleeve and wire are relatively independent. When the wire is bent, the distance between the ultrasonic probe and the workpiece changes, which causes changes in detection parameters and leads to misjudgments or missed judgments.

(2) When the diameter of the wire is slightly larger and the rigidity is stronger, the coupling sleeves on both sides of the water tank cannot "straighten" it, and the wire will be stuck on both sides of the coupling sleeve, and the detection cannot be carried out

(3) The coupling sleeve and the wire are rigidly rubbed, and nylon and other materials are generally used, and the wear loss is relatively large

(4) Generally, an adjustment mechanism for water distance parameters is installed inside the water immersion tank, which causes the water immersion tank to be too large in the axial direction of the wire, resulting in an increase in the detection blind area on both sides of the wire

(5) The design of the water circulation system is likely to cause air bubbles to interfere with the test results

Images