A tofd inspection coupling holding device

Abstract

The utility model discloses a TOFD detection coupling holding device, including main girder, two detection units, coupling structure, two detection units symmetry sets up on the main girder, coupling structure sets up between two detection units, and detection unit includes moving frame and mounting bracket, and two detection probes are symmetrically arranged on the moving frame, and the moving frame is connected with the main girder slidingly, and the mounting bracket is fixedly connected with the main girder, and a rotating wheel is rotatably arranged at the lower end of the mounting bracket, and the coupling structure includes main pipe, two branch pipes and two spray heads, and the two branch pipes are fixedly arranged below the main girder, and one end of the two branch pipes is communicated with the main pipe respectively, and the other end of the two branch pipes is respectively provided with a spray head, and one end of the main pipe is connected with the external water supply pipeline or equipment, and the main pipe is used for conveying water to the spray head. The utility model can continuously spray the coupling agent to the detection surface through the spray head, and the detection probe can be closely attached to the detected surface, so that the detection effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of material defect detection, and in particular to a TOFD detection coupling and holding device. Background Technology

[0002] TOFD (Time of Flight Diffraction) testing is an ultrasonic non-destructive testing technique widely used in the quality inspection of welds in special equipment. The uniformity and stability of the coupling agent directly affect the testing accuracy; existing coupling methods cannot maintain continuous coupling, which can lead to data loss, affecting defect detection and the overall inspection and testing effect.

[0003] Therefore, a TOFD detection coupling holding device is needed to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A TOFD detection coupling and holding device includes a main beam, two detection units, and a coupling structure;

[0006] Two detection units are symmetrically arranged on the main beam; a coupling structure is set between the two detection units;

[0007] The detection unit includes a movable frame and a mounting frame. Two detection probes are symmetrically arranged on the movable frame. The movable frame is slidably connected to the main beam. The mounting frame is fixedly connected to the main beam. A rotating wheel is rotatably installed at the lower end of the mounting frame.

[0008] The coupling structure includes a main pipe, two branch pipes, and two nozzles; the two branch pipes are fixedly installed below the main beam, with one end of each branch pipe connected to the main pipe; a nozzle is installed at the other end of each branch pipe; one end of the main pipe is connected to an external water supply pipe or equipment, and the main pipe is used to deliver water to the nozzles.

[0009] Preferably, a handle is provided at the top of the main beam.

[0010] Preferably, a flow control valve is provided on the main pipe, which is used to control the flow rate of the liquid delivered to the nozzle.

[0011] Preferably, one of the rotating wheels is connected to an encoder for transmission, and the encoder is used to record the travel distance of the rotating wheel.

[0012] Preferably, each movable frame has two sliding holes at its lower end, one end of the slide rod is slidably connected to the corresponding sliding hole, and a spring is sleeved on the outer periphery of each slide rod. One end of the spring is fixedly connected to the movable frame, and the other end is fixedly connected to the corresponding probe.

[0013] Preferably, each branch pipe has a corrugated pipe at one end, and the branch pipe is connected to the nozzle through the corrugated pipe.

[0014] Preferably, a sliding groove is provided at the bottom of the main beam, the movable frame is slidably connected to the sliding groove, the movable frame is provided with a first connecting hole, and a plurality of second connecting holes 102 matching the first connecting hole are provided in the sliding groove.

[0015] Preferably, the coupling structure also includes two industrial vision cameras, which are respectively located below the two nozzles; the flow control valve is an electric regulating valve; the industrial vision cameras, the flow control valve, the two detection probes, and the encoder are respectively connected to a computer for communication.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by this utility model compared with the prior art is as follows: This utility model can continuously spray coupling agent onto the detection surface through the nozzle, and at the same time can make the detection probe closely adhere to the detection surface, thus ensuring the detection effect.

[0017] Secondly, the spray flow rate can be controlled by a flow control valve; the spray angle can be adjusted by adjusting the angle of the nozzle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the TOFD detection coupling and holding device of this utility model;

[0020] Figure 2 This is another structural schematic diagram of the TOFD detection coupling and holding device of this utility model.

[0021] Explanation of main component symbols

[0022]

[0023]

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to imply non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Please see Figure 1-2 This utility model provides a TOFD detection coupling and holding device, which includes a main beam 1, two detection units 2, and a coupling structure 3;

[0028] Two detection units 2 are symmetrically arranged on the main beam 1; the coupling structure 3 is arranged between the two detection units 2;

[0029] The detection unit 2 includes a movable frame 21 and a mounting frame 22. Two detection probes 23 are symmetrically arranged on the movable frame 21. The movable frame 21 is slidably connected to the main beam 1. The mounting frame 22 is fixedly connected to the main beam 1. A rotating wheel 23 is rotatably arranged at the lower end of the mounting frame 22.

[0030] The coupling structure 3 includes a main pipe 31, two branch pipes 32, and two nozzles 33. The two branch pipes 32 are fixedly installed below the main beam 1, and one end of each branch pipe 32 is connected to the main pipe 31. A nozzle 33 is installed at the other end of each branch pipe 32. One end of the main pipe 31 is connected to an external water supply pipe or equipment, and the main pipe 31 is used to transport water to the nozzles 33.

[0031] In one embodiment of this utility model, a handle 11 is provided on the top of the main beam 1. In use, by pressing down the handle, the detection probe 23 is brought close to the surface to be detected. At the same time, the inspector manually pushes the handle 11, which can move the detection probe 23 along the surface to be detected.

[0032] In one embodiment of this utility model, a flow control valve 311 is provided on the main pipe 31. The flow control valve 311 is used to control the flow rate of the liquid delivered to the nozzle 33.

[0033] In one embodiment of the present invention, a rotating wheel 23 is connected to an encoder 231 for transmission, and the encoder 231 is used to record the travel distance of the rotating wheel.

[0034] In one embodiment of this utility model, each movable frame 21 has two sliding holes at its lower end. One end of a sliding rod 201 is slidably connected to the corresponding sliding hole. A spring 202 is sleeved on the outer periphery of each sliding rod. One end of the spring is fixedly connected to the movable frame 21, and the other end is fixedly connected to the corresponding probe 23. When the probe 23 moves to an uneven detection surface, the extension and contraction of the spring can make the probe fit snugly against the detection surface.

[0035] In one embodiment of this utility model, a corrugated pipe 321 is provided at one end of each branch pipe 32, and the branch pipe 32 is connected to the nozzle 33 through the corrugated pipe 321. When it is necessary to adjust the spray angle of the corresponding nozzle, the bending angle of the corrugated pipe 321 can be adjusted manually.

[0036] In one embodiment of this utility model, a sliding groove 101 is provided at the bottom of the main beam 1, and the movable frame 21 is slidably connected to the sliding groove 101. The movable frame 21 is provided with a first connecting hole 211, and a plurality of second connecting holes 102 matching the first connecting hole 211 are provided in the sliding groove 101. In use, the two movable frames 21 can be adjusted to move on the main beam 1, and then the movable frame 21 is fixed on the main beam 1 by bolts simultaneously connecting the first connecting hole 211 and the corresponding second connecting hole 102.

[0037] In one embodiment of this utility model, the coupling structure 3 further includes two industrial vision cameras 30, which are respectively disposed below the two nozzles 33; the flow control valve 311 is an electric regulating valve; the industrial vision cameras 30, the flow control valve 311, the two detection probes 23, and the encoder 231 are respectively connected to a computer for communication.

[0038] The industrial vision camera 30 monitors the contact area between the detection surface and the detection probe 23, analyzing image features (such as color, texture, and edge shape) to determine whether the coupling agent is uniform and whether there are bubbles or dry spots. Good coupling: the coupling agent is evenly covered, and there are no obvious dark spots or reflective points in the image; poor coupling: bubbles (circular dark areas), dry spots (areas without coupling agent), or uneven stripe distribution appear in the image. The signals collected by the industrial vision camera 30 are connected to a computer, and the computer outputs operation commands to the flow control valve 311, thereby achieving automatic control of the spray water volume.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A TOFD detection coupling and holding device, characterized in that: It includes a main beam, two detection units, and a coupling structure; Two detection units are symmetrically arranged on the main beam; a coupling structure is set between the two detection units; The detection unit includes a movable frame and a mounting frame. Two detection probes are symmetrically arranged on the movable frame. The movable frame is slidably connected to the main beam. The mounting frame is fixedly connected to the main beam. A rotating wheel is rotatably installed at the lower end of the mounting frame. The coupling structure includes a main pipe, two branch pipes, and two nozzles; the two branch pipes are fixedly installed below the main beam, with one end of each branch pipe connected to the main pipe; a nozzle is installed at the other end of each branch pipe; one end of the main pipe is connected to an external water supply pipe or equipment, and the main pipe is used to deliver water to the nozzles.

2. The TOFD detection coupling and holding device according to claim 1, characterized in that: A handle is installed at the top of the T-beam.

3. The TOFD detection coupling and holding device as described in claim 2, characterized in that: The main pipe is equipped with a flow control valve, which is used to control the flow rate of the liquid delivered to the nozzle.

4. The TOFD detection coupling and holding device as described in claim 3, characterized in that: One of the rotating wheels is connected to an encoder, which is used to record the travel distance of the rotating wheel.

5. The TOFD detection coupling and holding device as described in claim 1, characterized in that: Each movable frame has two sliding holes at its lower end. One end of the sliding rod is slidably connected to the corresponding sliding hole. A spring is sleeved on the outer periphery of each sliding rod. One end of the spring is fixedly connected to the movable frame, and the other end is fixedly connected to the corresponding probe.

6. The TOFD detection coupling and holding device as described in claim 1, characterized in that: Each branch pipe has a corrugated pipe at one end, and the branch pipe is connected to the nozzle through the corrugated pipe.

7. The TOFD detection coupling and holding device as described in claim 1, characterized in that: A sliding groove is provided at the bottom of the main beam, and the movable frame is slidably connected to the sliding groove. The movable frame is provided with a first connecting hole, and the sliding groove is provided with a number of second connecting holes that match the first connecting hole.

8. The TOFD detection coupling and holding device according to any one of claims 4-7, characterized in that: The coupling structure also includes two industrial vision cameras, which are respectively located below the two nozzles; the flow control valve is an electric regulating valve; the industrial vision cameras, flow control valve, two detection probes, and encoder are respectively connected to the computer for communication.

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