Multi-angle spraying auxiliary device for TOFD scanning frame

Abstract

The utility model discloses a multi-angle spraying auxiliary device for a time of flight diffraction (TOFD) scanning frame. The device comprises a clamping part, a spraying part and a base, the clamping part is positioned above the base and comprises a first clamping upper plate and a second clamping upper plate which are positioned on a first plane and are provided with through holes; the first clamping lower plate and the second clamping lower plate are positioned on a second plane below the first plane and are provided with through holes; the spraying part is located below the clamping part and comprises a spraying flow guide pipe which is sealed, a water inlet is formed in one side of the spraying flow guide pipe, and the spraying flow guide pipe is connected to a transparent silica gel hose. The plurality of nozzles are positioned on the other side of the spraying flow guide pipe; the base is provided with a through hole, the clamping part is fixed above the base by using a base plate, and a plurality of bolts respectively penetrate through the through holes of the first and second clamping upper plates and the through holes of the first and second clamping lower plates to be fixed together with corresponding nuts, so that the device is bound to the TOFD scanning frame. The device solves the problem that the scanning frame is inconvenient to spray, shortens the detection time and improves the detection efficiency.

Description

Technical Field

[0001] The present application generally relates to the technical field of TOFD scanning frames, and more particularly to a multi-angle spray auxiliary device for a TOFD scanning frame. Background Art

[0002] Ultrasonic diffraction time difference method (TOFD) is a working mode that uses two probes, one transmitting and one receiving. It uses the diffraction time difference signal obtained from the internal structure of the workpiece to detect defects, mainly the "end angle" and "end point" of the defect. It is used for defect detection, quantification and positioning. The detection process can be recorded in the form of a spectrum, and the internal situation of the test object can be observed more intuitively. It is a newer ultrasonic flaw detection technology with a high detection rate, accurate defect quantification accuracy and high detection efficiency. Therefore, when performing TOFD scanning, some form of scanning frame must be used to fix and clamp the probe so that the probe moves along the predetermined trajectory on the surface of the workpiece. Among them, the most typical scanning method - non-parallel scanning method requires the weld to be located at the center of the line connecting the two probes and move along the weld direction to ensure the scanning quality.

[0003] The existing TOFD scanning frame does not have a spray device. During operation, assistants are required to continuously spray coupling agent on the probe's travel path. Spraying too much, too little or at the wrong angle will affect the inspection progress and reduce work efficiency. Some spray devices are also placed directly on a fixed support plane, which is not easy to move and is not suitable for field operations in complex environments, and the use effect is low.

[0004] Therefore, it is necessary to design a multi-angle spray auxiliary device for a TOFD scanning frame to solve the problems raised in the above-mentioned prior art. The technical solution of the utility model is easy to use, easy to operate, can freely adjust the spray angle, and is easy to clamp and move. Utility Model Content

[0005] In view of the above technical problems, the present disclosure proposes a multi-angle spray auxiliary device for a TOFD scanning frame, characterized in that it includes: a clamping part, a spraying part and a base; the clamping part is located above the base, and includes: a first clamping upper plate and a second clamping upper plate, the first clamping upper plate and the second clamping upper plate are in a first plane and have a through hole; a first clamping lower plate and a second clamping lower plate, the first clamping lower plate and the second clamping lower plate are in a second plane below the first plane and have a through hole; the spraying part is located below the clamping part, and includes: a spray guide pipe, the spray guide pipe is sealed and has a water inlet on one side of the spray guide pipe, the inlet The water inlet is connected to a transparent silicone hose; a plurality of nozzles are located on the other side of the spray guide tube, and when the coupling agent is filled in the transparent silicone hose, the coupling agent is evenly sprayed onto the path of the probe; the base has a through hole, the clamping part is fixed above the base with a pad, and a plurality of bolts are respectively passed through the through holes of the first clamping upper plate, the second clamping upper plate, the first clamping lower plate, and the second clamping lower plate and fixed together with corresponding nuts, so that the TOFD scanning frame is set between the first clamping upper plate and the first clamping lower plate and between the second clamping upper plate and the second clamping lower plate, so as to bind the device to the TOFD scanning frame.

[0006] In a preferred embodiment, the first plane is parallel to the second plane.

[0007] In a preferred embodiment, a hand-tightened butterfly nut is provided at one end of the bolt.

[0008] In a preferred embodiment, the number of the plurality of nozzles is 6.

[0009] In a preferred embodiment, the bolt can be freely adjusted to adapt to different scanning frames.

[0010] In a preferred embodiment, the bolt is a hexagon socket bolt.

[0011] In a preferred embodiment, the spray guide pipe and the nozzle are made of S30408 ​​material.

[0012] In a preferred embodiment, the first clamping upper plate and the second clamping upper plate, the first clamping lower plate and the second clamping lower plate, and the base are made of the same material.

[0013] In a preferred embodiment, the number of the plurality of bolts is four.

[0014] Compared with the prior art, the beneficial effects of the content disclosed in the present invention are as follows: the technical solution of the utility model has the advantages of simple structure, strong operability, and convenient disassembly, while the production cost is low. It effectively solves the problem of inconvenient and insufficient spraying of the TOFD scanning frame during detection, shortens the detection time, greatly improves the detection efficiency, and is of great significance in improving the production rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The novel features of the present application are specifically described in the appended claims. The features and advantages of the present application will be better understood by referring to the following detailed description and drawings that describe illustrative embodiments in which the principles of the present application are utilized. The drawings are only used for the purpose of illustrating the embodiments and should not be considered as limiting the present application. Also, the same reference numerals are used throughout the drawings to represent the same elements. In the drawings:

[0016] Figure 1 A schematic diagram showing a multi-angle spray auxiliary device for a TOFD scanning frame according to an exemplary embodiment of the present disclosure is shown; and

[0017] Figure 2 A side view of a multi-angle spray assist device for a TOFD scanning frame according to an exemplary embodiment of the present disclosure is shown.

[0018] Explanation of the reference numerals: 1-first clamping upper plate, 2-first clamping lower plate, 3-second clamping upper plate, 4-second clamping lower plate, 5-bolt, 6-pad, 7-base, 8-spray guide pipe, 9-transparent silicone hose, 10-nozzle, 11-nut, 12-hand-tightened butterfly nut. DETAILED DESCRIPTION

[0019] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure, and to enable the scope of the present disclosure to be fully conveyed to those skilled in the art. Nothing in the following detailed description is intended to indicate that any particular component or feature is essential to the present application. Those skilled in the art will appreciate that various features can be substituted or combined with each other without departing from the scope of the present disclosure.

[0020] Figure 1A schematic diagram of a multi-angle spray auxiliary device for a TOFD scanning frame according to an exemplary embodiment of the present disclosure is shown. In one embodiment, the present disclosure proposes a multi-angle spray auxiliary device for a TOFD scanning frame, characterized in that it can include: a clamping part, a spraying part and a base. The clamping part can be located above the base 7, and the clamping part can include: a first clamping upper plate 1 and a second clamping upper plate 3. The first clamping upper plate 1 and the second clamping upper plate 3 can be in a first plane and have a through hole. The clamping part can also include: a first clamping lower plate 2 and a second clamping lower plate 4. The first clamping lower plate 2 and the second clamping lower plate 4 can be in a second plane below the first plane and have a through hole. In one embodiment, the first plane can be parallel to the second plane. In a preferred embodiment, the first clamping upper plate 1 and the second clamping upper plate 3, the first clamping lower plate 2 and the second clamping lower plate 4 and the base 7 can be made of the same material. For example, S30408 ​​material can be used, which can have the characteristics of high strength and corrosion resistance. The spraying part may be located below the clamping part, and the spraying part may include: a spraying guide tube 8. In one embodiment, the spraying guide tube 8 may be sealed or have a sealing structure, and may have a water inlet on one side of the spraying guide tube 8, and the water inlet is connected to a transparent silicone hose 9. In one embodiment, the transparent silicone hose 9 may be connected to a water injection pressurizing device. The spraying guide tube 8 may also include a plurality of nozzles 10. The plurality of nozzles 10 may be located on the other side of the spraying guide tube 8. When the coupling agent is filled in the transparent silicone hose 9, the coupling agent may be evenly sprayed onto the path of the probe. In a preferred embodiment, the number of the plurality of nozzles 10 may be 6. In other embodiments, the number of the plurality of nozzles 10 may be 4, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 or any other number deemed appropriate by a person skilled in the art. In a preferred embodiment, the spraying guide tube 8 and the nozzles 10 may be made of S30408 ​​material. The material may have the characteristics of high strength and corrosion resistance. The base 7 may also have a through hole, and the clamping part may be fixed on the base 7 using a pad 6, and by passing a plurality of bolts 5 through the through holes of the first clamping upper plate 1, the second clamping upper plate 3, the first clamping lower plate 2, and the second clamping lower plate 4 and fixing them together with corresponding nuts 11, the TOFD scanning frame is arranged between the first clamping upper plate 1 and the first clamping lower plate 2 and between the second clamping upper plate 3 and the second clamping lower plate 4, so as to bind the device to the TOFD scanning frame. In one embodiment, the number of the plurality of bolts 5 is 4.In other embodiments, the number of bolts 5 may be 6, 8, 10, 12 or any other number deemed appropriate by a person skilled in the art. When performing TOFD testing, the multi-angle spray auxiliary device may be fixed to the TOFD scanning frame, and the auxiliary device may be adjusted to a suitable position using a slide rail, and securely locked, and the angle of the spray guide tube 8 may be adjusted so that the nozzle 10 is aligned with the path taken by the TOFD probe. When dragging the TOFD scanning frame, the spray auxiliary device is driven to run synchronously and the coupling agent is sprayed evenly, which can not only greatly improve the detection rate, but also reasonably utilize the coupling agent and save costs.

[0021] Figure 2 A side view of a multi-angle spray auxiliary device for a TOFD scanning frame according to an exemplary embodiment of the present disclosure is shown. In a preferred embodiment, a hand-tightened butterfly nut 12 may be provided at one end of the bolt 5. In a preferred embodiment, the bolt 5 can be freely adjusted to adapt to different scanning frames. In a preferred embodiment, the bolt 5 may be a hexagon socket bolt. In other embodiments, the bolt 5 may be a square head bolt, a semicircular head square neck bolt, a semicircular head with tenon bolt, a countersunk square neck bolt, a countersunk head with tenon bolt, a T-slot bolt and a U-shaped bolt or any other type of bolt deemed appropriate by a person skilled in the art. Through the cooperation between the various mechanism parts, the auxiliary device can be firmly bound to the TOFD scanning frame, and through the looseness and tightness adjustment of the locking device, the spray guide tube 8 can flexibly adjust the angle to be suitable for weld detection at various angles and orientations, such as circumferential seam detection for vertical operation, straight seam detection for horizontal operation, spherical tank weld detection for arc curve operation, and the like.

[0022] In one embodiment, as a further improvement of the technical solution of the utility model, a forming tool can be used. It is only necessary to replace the blade in time after the blade is damaged, and the angle position is the same after the second replacement, and the forming effect is better. Compared with the use of ordinary twist drills for processing, each sharpening is time-consuming, and the angle position cannot be guaranteed to be the same each time, and the efficiency is not high when the quality is low.

[0023] In one embodiment, as a further improvement of the technical solution of the utility model, an axial positioning sleeve can be used at the front end of the forming tool. By replacing copper sleeves of different diameters at the front end to meet the positioning requirements of different bottom holes, the processing of the welding saddle-shaped groove can be accurately completed.

[0024] In one embodiment, as a further improvement of the technical solution of the utility model, the forming tool can be connected to the forming tool rocker drill through a Morse No. 4 side-fixed tool holder, which is convenient for quick disassembly and assembly. Because when processing the annular header pipe hole, it is necessary to drill the bottom hole first, then change the tool to process the countersink, and then change the tool to process the groove. Therefore, the tool must meet the processing environment of frequent tool changes for the pipe holes of various angles of the annular header. Therefore, the tool uses a Morse No. 4 side-fixed tool holder, which can more efficiently complete the processing of the saddle groove of the pipe hole welding.

[0025] Compared with the prior art, the utility model has the advantages of simple structure, strong operability, and easy disassembly, while having a low production cost. It effectively solves the problem of inconvenient and insufficient spraying of the TOFD scanning frame during detection, shortens the detection time, and greatly improves the detection efficiency, which is of great significance in improving the production rate.

[0026] It should be understood that the systems in the various embodiments provided in the present invention may be combined, modified and / or changed to form new technical solutions. In the absence of creative work, these technical solutions should also be included in the scope of protection claimed by the present invention.

[0027] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present invention in detail and are not intended to limit the present invention. The embodiments of the present invention can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present invention.

[0028] Although preferred embodiments of the present invention have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will now think of various changes, modifications and substitutions without departing from the present invention. It should be understood that the various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. It is intended to define the scope of the present invention by the claims, and thus cover structures and their equivalents within the scope of these claims.

Claims

1. A multi-angle spray auxiliary device for a TOFD scanning frame, characterized in that: include: Clamping part, spray part and base; The clamping portion is located above the base and comprises: A first clamping upper plate and a second clamping upper plate, wherein the first clamping upper plate and the second clamping upper plate are located in a first plane and have through holes; A first clamping lower plate and a second clamping lower plate, wherein the first clamping lower plate and the second clamping lower plate are located in a second plane below the first plane and have through holes; The spraying part is located below the clamping part and includes: A shower guide pipe, the shower guide pipe is sealed and has a water inlet on one side of the shower guide pipe, the water inlet is connected to a transparent silicone hose; A plurality of nozzles, wherein the plurality of nozzles are located at the other side of the spray guide pipe, and when the coupling agent is added to the transparent silicone hose, the coupling agent is evenly sprayed onto the path where the probe travels; The base has a through hole, and the clamping part is fixed above the base using a pad, and is fixed together with corresponding nuts by passing a plurality of bolts through the through holes of the first clamping upper plate, the second clamping upper plate, the first clamping lower plate, and the second clamping lower plate, so that the TOFD scanning frame is set between the first clamping upper plate and the first clamping lower plate and between the second clamping upper plate and the second clamping lower plate, so as to bind the device to the TOFD scanning frame.

2. The device according to claim 1, characterized in that The first plane is parallel to the second plane.

3. The device according to claim 1, characterized in that A hand-tightened butterfly nut is provided at one end of the bolt.

4. The device according to claim 1, characterized in that The number of the plurality of nozzles is 6.

5. The device according to claim 1, characterized in that The bolts can be freely adjusted to adapt to different scanning frames.

6. The device according to claim 1, characterized in that The bolts are hexagon socket bolts.

7. The device according to claim 1, characterized in that The spray guide pipe and the nozzle are made of S30408 ​​material.

8. The device according to claim 1, characterized in that The first clamping upper plate and the second clamping upper plate, the first clamping lower plate and the second clamping lower plate, and the base are made of the same material.

9. The device according to claim 1, characterized in that The number of the plurality of bolts is four.

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