Liquid permeable non-destructive testing tool

Abstract

The utility model provides a kind of liquid permeation nondestructive testing tool, including conveying device, spraying assembly and wiping device, and the wiping device is formed with the conveying device between cleaning area;The wiping device includes shell, winding mechanism and driving device, and the driving device includes driving motor and the eccentricity installation of driving motor output end cleaning plate, and the cleaning plate is used to compact the workpiece surface of winding mechanism in conveying device, and the driving motor is used to drive the cleaning plate swing;Spraying assembly has two, two spraying assemblies are installed on the conveying device and are respectively arranged in the feed end and discharge end of the cleaning area;The utility model can solve the problem of the operation cumbersome in the permeation detection of prior art relies on manual operation, when cleaning the residual penetrant on workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of nondestructive testing equipment technology, specifically to a liquid penetration nondestructive testing fixture. Background Technology

[0002] Liquid penetrant testing is a non-destructive testing method for surfaces. It utilizes the wetting and capillary action of a liquid to penetrate the surface of a solid material through open defects. A developer then causes the penetrant to precipitate back onto the surface, revealing the defect. The liquid penetrant testing process can be divided into pre-cleaning, penetrant application, cleaning, drying, development, and observation. Common penetrant methods include immersion, brushing, and spraying.

[0003] In the prior art, some parts are placed in a penetration basket of a certain depth for penetration testing, which is inconvenient when removing them. To solve the problems existing in the prior art, utility model with announcement number CN208206744U discloses a liquid penetration non-destructive testing fixture (hereinafter referred to as prior art 1), which includes a penetration basket with several leakage holes on each surface. Inside the penetration basket, there is a lifting plate that is attached to its inner wall and is horizontally arranged. The lifting plate has several identical leakage holes. A tension spring is vertically arranged between the lower end face of the lifting plate and the penetration basket. In normal condition, the upper end face of the lifting plate is flush with the upper end face of the penetration basket. A limiting device is also provided between the penetration basket and the lifting plate to compress and fix the tension spring in its shortest state.

[0004] While prior art 1 facilitates the removal of metal parts from the penetrant basket, the penetrant testing of the workpiece in prior art 1 relies on manual operation (such as spraying, wiping, and transferring). The operation of cleaning the residual penetrant on the workpiece surface is cumbersome and the accuracy of the test is easily affected by incomplete wiping. Utility Model Content

[0005] The purpose of this invention is to provide a liquid penetrant nondestructive testing fixture, which can solve the problem of cumbersome operation in the existing penetrant testing technology, which relies on manual operation and is tedious when cleaning the residual penetrant on the workpiece surface.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A liquid penetration non-destructive testing fixture includes a conveying device, a spraying assembly, and a wiping device, wherein a cleaning area is formed between the wiping device and the conveying device.

[0008] The wiping device includes a housing, a winding mechanism, and a driving device. The driving device includes a driving motor and a cleaning plate eccentrically mounted at the output end of the driving motor. The cleaning plate is used to press the winding mechanism against the workpiece surface of the conveying device, and the driving motor is used to drive the cleaning plate to swing.

[0009] There are two spraying components, which are installed on the conveying device and respectively located at the inlet and outlet of the cleaning area.

[0010] Preferably, the winding mechanism includes an unwinding mechanism, a winding mechanism, a limiting mechanism, and a wiping cloth. The unwinding mechanism, the winding mechanism, and the limiting mechanism are all mounted on the housing. One end of the wiping cloth is connected to the unwinding mechanism, and the other end of the wiping cloth is connected to the winding mechanism after passing around the limiting mechanism. The limiting mechanism is symmetrically mounted on the left and right ends of the cleaning plate.

[0011] Preferably, a telescopic device is installed on the housing, which is used to drive the drive motor to move.

[0012] Preferably, a flexible connector is provided between the drive motor and the cleaning plate.

[0013] Preferably, the conveying device is equipped with a scraper assembly, which is disposed at the feed end of the cleaning area.

[0014] Preferably, the scraper assembly includes a bracket and a scraper body mounted on the bracket, wherein the scraper body is provided with a waste liquid tank.

[0015] Preferably, the spraying assembly includes a mounting bracket, a nozzle, and a drive mechanism. The mounting bracket is fixedly connected to the conveying device, the nozzle is slidably mounted on the mounting bracket, and the drive mechanism is used to drive the nozzle to move.

[0016] Preferably, a rubber pad is connected to the bottom end of the cleaning plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, the cleaning plate can press the winding mechanism against the surface of the workpiece to perform a wiping motion, so that the winding mechanism can wipe the penetrant on the surface of the workpiece and avoid the penetrant remaining on the surface of the workpiece from affecting the imaging.

[0019] After being wiped by the winding mechanism, the workpiece is moved by the conveying device to the spraying component located at the discharge end of the cleaning area. The spraying component at the discharge end of the cleaning area sprays developer onto the surface of the workpiece, so that defects on the surface of the workpiece can be displayed and observed under the action of the developer. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the wiping device in this utility model.

[0023] Figure 3 This is a schematic diagram of the scraper assembly in this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 101-Conveying device, 102-Spraying assembly, 103-Wiping device, 104-Housing, 105-Winding mechanism, 106-Drive device, 107-Drive motor, 108-Cleaning plate, 109-Spring, 110-Unwinding mechanism, 111-Rewinding mechanism, 112-Limiting mechanism, 113-Wiping cloth, 114-Telescopic device, 115-Flexible connector, 116-Scraper assembly, 117-Bracket, 118-Scraper body, 119-Waste liquid tank, 120-Mounting bracket, 121-Nozzle, 122-Drive mechanism, 123-Rubber pad, 124-First guide slope, 125-Second guide slope. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] See Figures 1-3 This embodiment discloses a liquid penetration non-destructive testing fixture, including a conveying device 101, a spraying assembly 102 and a wiping device 103, wherein a cleaning area is formed between the wiping device 103 and the conveying device 101;

[0034] The wiping device 103 includes a housing 104, a winding mechanism 105, and a driving device 106. The driving device 106 includes a driving motor 107 and a cleaning plate 108 eccentrically mounted at the output end of the driving motor 107. The cleaning plate 108 is used to press the winding mechanism 105 against the workpiece surface of the conveying device 101. The driving motor 107 is used to drive the cleaning plate 108 to swing.

[0035] There are two spraying components 102, which are installed on the conveying device 101 and respectively located at the feed end and discharge end of the cleaning area.

[0036] In this embodiment, the conveying device 101 is a conventional roller conveyor in the prior art, and its specific structure and function will not be described in detail here. When the workpiece placed on the conveying device 101 moves with the conveying device 101 to below the spray penetrant assembly located at the feed end of the cleaning area, the spraying assembly 102 located at the feed end of the cleaning area sprays penetrant onto the surface of the workpiece. During the process of the conveying device 101 conveying the workpiece sprayed with penetrant to the cleaning area, the penetrant sprayed on the surface of the workpiece penetrates into the defects and cracks on the workpiece. Driven by the drive motor 107, the cleaning plate 108 can press the winding mechanism 105 against the surface of the workpiece to perform a wiping motion, so that the winding mechanism 105 can wipe the penetrant on the surface of the workpiece, avoiding the penetrant remaining on the surface of the workpiece from affecting the appearance. The workpiece, after being wiped by the winding mechanism 105, is moved by the conveying device 101 to a position below the spraying component 102 located at the discharge end of the cleaning area. The spraying component 102 sprays a developer onto the surface of the workpiece, allowing defects on the workpiece surface to be displayed and observed under the action of the developer. In this embodiment, the conveying device 101, the spraying component 102, and the wiping device 103 form a production line operation, eliminating the need for manual transfer and manual inspection of the workpiece, thus improving work efficiency. Furthermore, the spraying components 102 located at the inlet and outlet ends of the cleaning area enable parallel processing, reducing the waiting time for multiple workpieces. The winding mechanism 105, in conjunction with the cleaning plate 108, can continuously wipe the penetrating liquid from the surface of the workpiece, avoiding the problem of frequent cloth replacements required for single wiping in existing technologies.

[0037] In some embodiments, the winding mechanism 105 includes an unwinding mechanism 110, a winding mechanism 111, a limiting mechanism 112, and a wiping cloth 113. The unwinding mechanism 110, the winding mechanism 111, and the limiting mechanism 112 are all mounted on the housing 104. One end of the wiping cloth 113 is connected to the unwinding mechanism 110, and the other end of the wiping cloth 113 passes around the limiting mechanism 112 and is connected to the winding mechanism 111. The limiting mechanism 112 is symmetrically mounted on the left and right ends of the cleaning plate 108. In this embodiment, the limiting mechanism 112 is used to limit the wiping cloth 113, so that the wiping cloth 113 can form a wiping surface for contacting the workpiece below the cleaning plate; the unwinding mechanism 110 is a conventional roll mechanism used in the prior art to store unused wiping cloth 113 rolls, releasing the wiping cloth 113 by passive unwinding to ensure that the cleaning area is always covered with new wiping cloth 113, and the unwinding mechanism 110 is rotatably connected to the housing 104; the winding mechanism 111 is a conventional roll mechanism actively driven by a motor device in the prior art, and The winding mechanism 111 is connected to the housing 104 via a motor. When the motor drives the winding mechanism 111 to rotate, it can recycle the dirty wiping cloth 113 generated after wiping the workpiece surface, forming a continuous operation process of unwinding-wiping-winding, continuously wiping the penetrating liquid on the workpiece surface, avoiding the problem of frequent cloth replacement required for a single wipe in the prior art. In this embodiment, the limiting mechanism 112 includes a support frame and a guide wheel. The guide wheel is connected to the housing 104 via the support frame, and the guide wheel is rotatably connected to the support frame via a bearing.

[0038] In some embodiments, a telescopic device 114 is installed on the housing 104, which is used to drive the drive motor 107 to move. The fixed end of the telescopic device 114 is connected to the housing 104, and the telescopic end of the telescopic device 114 is connected to the fixed end of the drive motor 107. The telescopic device 114 can drive the drive motor 107 to move the cleaning plate 108 vertically up and down, adjusting the distance between the drive motor 107 and the conveying device 101. This allows the cleaning plate 108 to press the wiping cloth 113 against the workpiece surface at different heights, and to drive the wiping cloth 113 to wipe the penetrating liquid on the workpiece surface at different heights.

[0039] In some embodiments, a flexible connector 115 connects the drive motor 107 and the cleaning plate 108. In this embodiment, the flexible connector 115 is a plurality of rubber connecting posts; the flexible connector 115 enables multi-point connection between the cleaning plate 108 and the drive motor 107, allowing the evenly distributed flexible connectors 115 to distribute the load, maintain the radial balance of the cleaning plate 108 during the swinging process, and significantly reduce the risk of breakage of the output shaft of the drive motor 107.

[0040] In some embodiments, a scraper assembly 116 is mounted on the conveying device 101, and the scraper assembly 116 is disposed at the feed end of the cleaning area. The scraper assembly 116 is located between the spraying assembly 102 at the feed end of the cleaning area and the cleaning area, and is used to pre-remove excess penetrating liquid remaining on the workpiece surface. Since penetrating liquids such as fluorescent penetrating liquids usually have high viscosity, directly wiping with the wiping cloth 113 can easily cause liquid diffusion, increasing the difficulty of wiping. By setting the scraper assembly 116 to scrape away most of the penetrating liquid remaining on the workpiece surface, the subsequent wiping cloth 113 only needs to treat a thin layer of residual penetrating liquid on the workpiece surface, thereby improving cleaning efficiency and cleaning effect.

[0041] In some embodiments, the scraper assembly 116 includes a bracket 117 and a scraper body 118 mounted on the bracket 117. The scraper body 118 is provided with a waste liquid tank 119. In this embodiment, the scraper body 118 is provided with a first guide slope 124. After the first guide slope 124 contacts the penetrating liquid on the workpiece surface, it can guide the penetrating liquid into the waste liquid tank 119. A second guide slope 125 is symmetrically arranged within the waste liquid tank 119. The second guide slope 125 can guide the waste liquid entering the waste liquid tank 119 to flow to both sides. Waste liquid pipes are connected to the left and right sides of the scraper body 118. The residual penetrating liquid on the workpiece, guided by the first guide slope 124 and the second guide slope 125, enters the waste liquid pipes, enabling the collection and treatment of the residual penetrating liquid.

[0042] In some embodiments, the scraper body 118 is slidably connected to the support frame, and a spring 109 is fixedly connected to the support frame. One end of the spring 109 away from the support frame is connected to the scraper body 118. When the workpiece moves to contact the scraper body 118, the first guide slope 124 provided on the scraper body 118 can fit against the surface of the scraper body 118 under the force provided by the spring 109. As the workpiece moves, it cleans the residual penetrating liquid on the surface of the workpiece, further improving the cleaning effect and preventing the scraper body 118 from being hard-scratched by sudden external impacts such as the start-stop vibration of the conveyor 101.

[0043] In some embodiments, the spraying assembly 102 includes a mounting frame 120, a nozzle 121, and a drive mechanism 122. The mounting frame 120 is fixedly connected to the conveying device 101, the nozzle 121 is slidably mounted on the mounting frame 120, and the drive mechanism 122 is used to drive the nozzle 121 to move. In this embodiment, a liquid source device for inputting liquid into the nozzle 121 is mounted on the mounting frame 120. The liquid source device is a conventional storage device in the prior art, such as the liquid storage tank of the BYCP spraying equipment, and its structure and function will not be described in detail here. The drive mechanism 122 can drive the nozzle 121 to move, so that the nozzle 121 can spray the detection area of ​​workpieces of different sizes. In this embodiment, the drive mechanism 122 is a conventional linear drive mechanism 122 in the prior art, such as the MKR series slide table, and its structure and function will not be described in detail here.

[0044] In some embodiments, a rubber pad 123 is connected to the bottom end of the cleaning plate 108. In this embodiment, the elastic properties of the rubber pad 123 can absorb the impact force when the cleaning plate 108, which moves vertically under the drive of the telescopic device 114, comes into contact with the workpiece, thus avoiding damage and deformation of the workpiece surface caused by rigid collision; and the rubber pad 123 can also increase the friction force generated by the contact surface between the cleaning plate 108 and the wiping cloth 113, thus preventing the wiping cloth 113 from slipping due to insufficient friction when the cleaning plate 108 moves to clean the workpiece surface, which would affect the cleaning effect on the workpiece surface.

[0045] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid penetrant nondestructive testing fixture, characterized in that: It includes a conveying device (101), a spraying assembly (102), and a wiping device (103), wherein a cleaning area is formed between the wiping device (103) and the conveying device (101); The wiping device (103) includes a housing (104), a winding mechanism (105), and a driving device (106). The driving device (106) includes a driving motor (107) and a cleaning plate (108) eccentrically mounted at the output end of the driving motor (107). The cleaning plate (108) is used to press the winding mechanism (105) against the workpiece surface of the conveying device (101). The driving motor (107) is used to drive the cleaning plate (108) to swing. There are two spraying components (102), which are installed on the conveying device (101) and respectively set at the feed end and discharge end of the cleaning area.

2. The liquid penetrant nondestructive testing fixture according to claim 1, characterized in that: The winding mechanism (105) includes an unwinding mechanism (110), a winding mechanism (111), a limiting mechanism (112), and a wiping cloth (113). The unwinding mechanism (110), the winding mechanism (111), and the limiting mechanism (112) are all mounted on the housing (104). One end of the wiping cloth (113) is connected to the unwinding mechanism (110), and the other end of the wiping cloth (113) passes around the limiting mechanism (112) and is connected to the winding mechanism (111). The limiting mechanism (112) is symmetrically mounted on the left and right ends of the cleaning plate (108).

3. The liquid penetration nondestructive testing fixture according to claim 2, characterized in that: A telescopic device (114) is installed on the housing (104), and the telescopic device (114) is used to drive the drive motor (107) to move.

4. The liquid penetrant nondestructive testing fixture according to claim 1, characterized in that: A flexible connector (115) is connected between the drive motor (107) and the cleaning plate (108).

5. The liquid penetrant nondestructive testing fixture according to claim 1, characterized in that: The conveying device (101) is equipped with a scraper assembly (116), which is located at the feed end of the cleaning area.

6. The liquid penetrant nondestructive testing fixture according to claim 5, characterized in that: The scraper assembly (116) includes a bracket (117) and a scraper body (118) mounted on the bracket (117), wherein a waste liquid tank (119) is provided on the scraper body (118).

7. The liquid penetrant nondestructive testing fixture according to claim 6, characterized in that: The spraying assembly (102) includes a mounting bracket (120), a nozzle (121), and a drive mechanism (122). The mounting bracket (120) is fixedly connected to the conveying device (101), the nozzle (121) is slidably mounted on the mounting bracket (120), and the drive mechanism (122) is used to drive the nozzle (121) to move.

8. The liquid penetrant nondestructive testing fixture according to claim 1, characterized in that: A rubber pad (123) is connected to the bottom end of the cleaning plate (108).

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