Device for carrying out nondestructive inspection on welding assembly

Abstract

The utility model discloses a device for carrying out nondestructive inspection on a welding assembly, and mainly relates to the technical field of rotating shaft inspection. Comprising a to-be-detected mechanism, a supporting mechanism and a flaw detection mechanism, the to-be-detected mechanism is specifically a welded planet carrier assembly, the bottom of the welded planet carrier assembly is connected with the supporting mechanism, and the flaw detection mechanism is arranged on the peripheral side of the bottom of the welded planet carrier assembly. The beneficial effects of the utility model lie in that the device can realize stable measurement after one-time clamping, and the repeatability of detection is not affected even if the device is dismounted and mounted for many times.

Description

Technical Field

[0001] This utility model relates to the field of rotary shaft flaw detection technology, specifically a device for non-destructive testing of welded assemblies. Background Technology

[0002] By replacing the original assembly process with electron beam welding, the quality of the workpiece can be improved. However, post-weld cutting inspection is not only costly but also has a limited scope, resulting in limitations in judging the welding process. Therefore, non-destructive testing, which scans the entire weld area to evaluate the weld quality, has become an essential inspection method.

[0003] The welded planetary carrier assembly is a rotating shaft part with a large volume. The flaw detection process requires 2 minutes of continuous operation within the production line cycle, with a 100% inspection frequency, and is handled by a robotic arm. Initially, the flaw detection device was designed as a structure composed of various small components. However, the flaw detection results were unstable and showed significant deviations.

[0004] Therefore, there is an urgent need for a device for non-destructive testing of welded assemblies to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for non-destructive testing of welded assemblies, which can achieve stable measurement after one clamping and can be disassembled and reinstalled multiple times without affecting the repeatability of the test.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] The main structure includes a flaw detection mechanism, a support mechanism, and a flaw detection mechanism. Specifically, the flaw detection mechanism is a welded planetary carrier assembly. The bottom of the welded planetary carrier assembly is connected to the support mechanism, and the flaw detection mechanism is provided on the bottom periphery of the welded planetary carrier assembly.

[0008] Preferably, the flaw detection mechanism includes a vertical rod, a first horizontal rod is provided at the bottom end of the vertical rod, the first horizontal rod and the vertical rod are arranged on the same plane and are vertically distributed, a second horizontal rod is provided at the middle position of the vertical rod, the second horizontal rod is parallel to the first horizontal rod and is arranged on the same plane, and the length of the second horizontal rod is the same as that of the first horizontal rod.

[0009] Preferably, the first horizontal bar, the second horizontal bar, and the vertical bar form an inverted F-shaped structure, and a probe is provided at the end of the first horizontal bar and the second horizontal bar away from the vertical bar.

[0010] Preferably, the support mechanism is a base, which is a cylindrical structure. A circular groove is provided on the top surface of the base, and the bottom of the welded planetary carrier assembly is located in the groove, and the welded planetary carrier assembly can rotate along the groove.

[0011] Preferably, the bottom diameter of the welded planetary carrier assembly is larger than the diameter of the base, and the bottom of the welded planetary carrier assembly is located between the first and second crossbars of the flaw detection mechanism.

[0012] Preferably, the top of the vertical rod is provided with a fixing buckle, and both ends of the fixing buckle are provided with screw holes, and bolts are provided in the screw holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model features a scientifically designed structure and machining accuracy that meets usage requirements. It is easy to install and greatly improves the measurement efficiency of the flaw detector.

[0015] 2. This utility model enables the flaw detector to achieve a repeatability of ±1 percentage point for standard sample detection. Attached Figure Description

[0016] Figure 1 This is the front view of this utility model.

[0017] The labels shown in the attached diagram:

[0018] 1. Supporting structure; 2. Structure to be inspected; 3. Inspection structure. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0020] In this invention, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any component or element in this invention. They should not be construed as limiting the invention.

[0021] In this invention, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention.

[0022] Example:

[0023] like Figure 1 As shown, this embodiment provides an apparatus for non-destructive testing of welded assemblies, including a testing mechanism, a support mechanism, and a testing mechanism. Specifically, the testing mechanism is a welded planetary carrier assembly. The bottom of the welded planetary carrier assembly is connected to the support mechanism, and the testing mechanism is provided on the periphery of the bottom of the welded planetary carrier assembly.

[0024] The flaw detection mechanism includes a vertical rod, a first horizontal rod at the bottom end of the vertical rod, the first horizontal rod and the vertical rod being arranged on the same plane and vertically distributed, a second horizontal rod at the middle position of the vertical rod, the second horizontal rod being parallel to the first horizontal rod and arranged on the same plane, the length of the second horizontal rod being the same as the first horizontal rod, the first horizontal rod, the second horizontal rod and the vertical rod forming an inverted F-shaped structure, and a probe being arranged at the end of the first horizontal rod and the second horizontal rod away from the vertical rod.

[0025] The support mechanism is specifically a base, which is a cylindrical structure. A circular groove is provided on the top surface of the base. The bottom of the welded planetary carrier assembly is located in the groove and can rotate along the groove. The bottom diameter of the welded planetary carrier assembly is larger than the diameter of the base. The bottom of the welded planetary carrier assembly is located between the first and second crossbars of the flaw detection mechanism.

[0026] The welding planetary carrier assembly is positioned and rotated by the base under the drive of the servo motor. The probe is accurately positioned and clamped on the probe mounting bracket. The probe emits and receives pulse signals, and defects are detected by processing the reflected signals. The flaw detection mechanism is an integrated structure, processed by wire cutting, which eliminates unstable factors during the disassembly and installation of the combined tooling, and facilitates quick and stable tooling replacement. The flaw detection mechanism is designed and used with requirements for its form and position tolerances. It has been verified that the perpendicularity and parallelism are controlled within 0.02mm, and the calibration equipment can obtain high relative pulse echo sensitivity.

[0027] The perpendicularity of the two positioning mounting holes of the probe mounting bracket is within 0.02mm, and the perpendicularity of the center line to the mounting end face is 0.02mm. The probe mounting bracket is fixedly installed on the flaw detector, and the probe of the flaw detector extends into the mounting hole of the probe mounting bracket and is secured by screws on the side. Accurate positioning and installation of the probe ensures stable ultrasonic signal transmission and reception. The probe completes linear displacement. The welded planetary carrier assembly is installed and fixed through the base, and the workpiece is rotated by pins on the end face to complete circumferential flaw detection.

[0028] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An apparatus for non-destructive testing of welded assemblies, characterized in that, Including to be explored the mechanism, support mechanism and the mechanism of exploring a disease, the mechanism of exploring a disease specifically is the welded planet carrier assembly, the bottom of the welded planet carrier assembly is connected with the support mechanism, the bottom of the welded planet carrier assembly is provided with the mechanism of exploring a disease.

2. Apparatus for use in non-destructive inspection of a welded joint according to claim 1, wherein, The mechanism of exploring a disease includes vertical pole, the bottom end of the vertical pole is provided with the first cross bar, the first cross bar is vertically distributed with the vertical pole and is provided on the same plane, the middle position of the vertical pole is provided with the second cross bar, the second cross bar is parallel with the first cross bar and is provided on the same plane, the length of the second cross bar is same with the first cross bar.

3. Apparatus for use in non-destructive testing of a welded joint according to claim 2, wherein, The first cross bar, the second cross bar and the vertical pole form inverted F type structure, the end of the first cross bar, the second cross bar away from the vertical pole is provided with the probe.

4. Apparatus for use in non-destructive testing of a welded joint according to claim 3, wherein, The support mechanism specifically is the base, the base is cylindrical structure, the top surface of the base is provided with the circular ring recess, the bottom of the welded planet carrier assembly is arranged in the recess, and the welded planet carrier assembly can rotate along the recess.

5. Apparatus for use in non-destructive testing of a welded joint according to claim 4, wherein, The diameter of the bottom of the welded planet carrier assembly is greater than the diameter of the base, the bottom of the welded planet carrier assembly is arranged between the first cross bar and the second cross bar of the mechanism of exploring a disease.

6. The apparatus of claim 2, wherein, The top end of the vertical pole is provided with the fixed buckle, the both ends of the fixed buckle are provided with the screw hole, the screw hole is provided with the bolt.

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