Electromagnetic ultrasonic probe cleaning mechanism and flaw detection robot

Abstract

The utility model relates to the technical field of nondestructive testing equipment cleaning, and particularly provides an electromagnetic ultrasonic probe cleaning mechanism and a flaw detection robot, the electromagnetic ultrasonic probe cleaning mechanism comprises a probe mounting seat, an isolation plate, a driving assembly and an adsorption assembly; the probe mounting seat is used for mounting an electromagnetic ultrasonic probe; a groove for accommodating scraps is formed in the bottom of the isolation plate, and the isolation plate is arranged below the probe mounting seat at an interval; the driving assembly is connected with the isolation plate, and the driving assembly acts to adjust the relative position of the isolation plate and the probe mounting seat; the adsorption assembly is communicated with the groove through a dust collection guide pipe so as to adsorb sweeps in the groove. The isolation plate is driven through the driving assembly, and waste chips below the isolation plate are transferred. The groove in the isolation plate can prevent waste chips from flowing, the splashing phenomenon caused by the inertia of the iron chips in the transferring process is effectively prevented, the adsorption assembly is connected with the groove, the waste chips in the groove are collected, and therefore efficient cleaning is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-destructive testing equipment cleaning, in particular to an electromagnetic ultrasonic probe and a flaw detection robot. BACKGROUND

[0002] Electromagnetic Acoustic Transducer (hereinafter referred to as EMAT) is a new technology in the field of non-destructive testing, which uses electromagnetic coupling method to excite and receive ultrasonic waves.

[0003] In the actual application process of the electromagnetic ultrasonic probe, its working surface is easy to adsorb magnetic particle pollutants such as iron filings and rust. The efficient removal of these pollutants is a great challenge. The traditional cleaning method relies on manual operation, which is not only time-consuming and laborious, but also difficult to guarantee the cleaning effect. If the cleaning is not thorough, the residual iron filings may affect the detection accuracy of the probe, interfere with signal transmission, reduce detection efficiency, and even damage sensitive components, thereby adversely affecting the detection reliability and equipment service life.

[0004] Therefore, an automatic, accurate and efficient cleaning mechanism is needed to improve the cleaning quality and working stability of the probe. CONTENT OF THE INVENTION

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide an electromagnetic ultrasonic probe cleaning mechanism and a flaw detection robot, which aims to solve the problem of incomplete cleaning of the electromagnetic ultrasonic probe in the prior art.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows: an electromagnetic ultrasonic probe cleaning mechanism, comprising:

[0007] A probe mounting seat for mounting an electromagnetic ultrasonic probe;

[0008] A separation plate, the bottom of the separation plate is provided with a groove for accommodating waste particles, and the separation plate is arranged below the probe mounting seat;

[0009] A driving assembly connected to the separation plate, the driving assembly acts to adjust the relative position of the separation plate and the probe mounting seat;

[0010] An adsorption assembly connected to the groove through a dust suction conduit to adsorb waste particles in the groove.

[0011] Optionally, the driving assembly comprises a base, a screw rod driving structure and a bottom plate, the screw rod driving structure is mounted on the base, the probe mounting seat is fixed on the base and extends outward, the bottom plate is arranged below the base and connected with the screw rod driving structure to make the bottom plate move linearly, and the isolation plate is connected with the bottom plate.

[0012] Optionally, the adsorption assembly comprises a scrap collecting box, a dust collection motor and a pipeline joint, the scrap collecting box is fixed on the base, the dust collection motor and the pipeline joint are connected with the inside of the scrap collecting box, and the pipeline joint is connected with the groove through the dust collection conduit.

[0013] Optionally, at least one pair of electromagnetic coil blocks are arranged on both sides of the probe mounting seat.

[0014] Optionally, the number of the grooves on the isolation plate is four, and the interval distance between adjacent two grooves is the same.

[0015] The distance between the electromagnetic coil block and the probe mounting seat is equal to the distance between adjacent two grooves.

[0016] Optionally, the driving assembly is a belt driving structure, and the isolation plate is connected with the belt driving structure to realize linear reciprocating motion.

[0017] Optionally, a limit sensor is arranged on the driving assembly to detect the relative position of the isolation plate and the driving assembly.

[0018] Optionally, a drawer is arranged on the scrap collecting box, and a magnetic member is arranged in the drawer to adsorb the scrap.

[0019] Another technical solution adopted by the application to solve the technical problem is as follows: a flaw detection robot comprising the electromagnetic ultrasonic probe cleaning mechanism according to any one of the above.

[0020] Compared with the prior art, the application adjusts the relative position of the isolation plate and the probe mounting seat through the driving assembly, realizes the transfer of the scrap below the isolation plate, ensures that the scrap removal process and the flaw detection process do not interfere with each other, the grooves on the isolation plate can avoid the flow of the scrap, effectively prevent the splashing phenomenon caused by the inertia of the scrap during the transfer process, the adsorption assembly is connected with the groove, the scrap in the groove is collected, and thus efficient cleaning is realized. The application realizes the effect of efficiently cleaning the scrap on the electromagnetic ultrasonic probe through the synchronous operation of multiple scrap removal modes, thereby improving the detection accuracy of the electromagnetic ultrasonic probe. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1is a perspective structural schematic view of an electromagnetic ultrasonic probe cleaning mechanism provided in the present application;

[0022] Figure 2 is another perspective structural schematic view of an electromagnetic ultrasonic probe cleaning mechanism provided in the present application;

[0023] Figure 3 is an exploded schematic view of an electromagnetic ultrasonic probe cleaning mechanism provided in the present application;

[0024] Figure 4 is a front view of an electromagnetic ultrasonic probe cleaning mechanism provided in the present application;

[0025] Figure 5 is a perspective structural schematic view of a driving assembly provided in the present application;

[0026] Figure 6 is another perspective structural schematic view of a driving assembly provided in the present application;

[0027] Figure 7 is another perspective structural schematic view of a driving assembly provided in the present application;

[0028] Figure 8 is a perspective structural schematic view of an adsorption assembly provided in the present application;

[0029] Figure 9 is a perspective structural schematic view of an isolation plate provided in the present application;

[0030] Figure 10 is another perspective structural schematic view of an isolation plate provided in the present application;

[0031] Figure 11 is a perspective structural schematic view of a probe mounting seat provided in the present application.

[0032] Legend of reference signs:

[0033] 10, probe mounting seat; 11, electromagnetic ultrasonic probe; 20, isolation plate; 21, groove; 22, pipeline joint; 23, dust suction port; 30, driving assembly; 31, base; 32, screw driving structure; 33, bottom plate; 34, limit sensor; 40, adsorption assembly; 41, scrap collecting box; 42, dust suction motor; 43, pipeline joint; 44, drawer; 50, electromagnetic coil block. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0036] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The existing electromagnetic probe cleaning technology usually includes mechanical scrap pushing and pulling type cleaning, pneumatic blowing type cleaning and synchronous magnetic attraction cleaning. The mechanical scrap pushing and pulling type cleaning includes a scrap mechanism and a pushing and pulling assembly. The scrap mechanism is composed of a scrap shell and a scrap plate. The scrap plate pushes the iron filings to the bottom of the scrap shell and avoids the accumulation on the side wall. After the iron filings are collected, the pushing block drives the scrap shell to move along the surface of the probe shell, so that the iron filings are separated from the magnetic field and fall off. The pneumatic blowing type cleaning blows uniform air flow to the surface of the electromagnetic ultrasonic probe through a plurality of blowing hoses to remove the part of the iron filings and metal attachments adsorbed by the electromagnetic ultrasonic probe. The synchronous magnetic attraction cleaning sets a cleaning magnet around the electromagnetic ultrasonic probe. When detecting, the probe and the cleaning magnet move synchronously. The cleaning magnet pre-adsorbs the ferromagnetic impurities on the surface of the workpiece in the moving direction of the probe, so that the ferromagnetic impurities are separated from the workpiece.

[0038] However, the above several cleaning methods have certain deficiencies. The disadvantages of the mechanical scrap pushing and pulling type of scrap removal are that the mechanical structure is easy to wear, the spring is easy to fatigue, the scrap removal shell is easy to jam, the scrap removal efficiency is low, the flow control of the scrap plate is not accurate, the scrap is easy to splash and pollute the probe due to inertia, the complex surface (such as a groove) hinders the collection of scrap, and a flow guide structure needs to be added. The push-pull assembly needs to move the probe a long distance to separate from the scrap, and the detection cannot be synchronized during the movement, so the efficiency is limited. It is only suitable for ferromagnetic impurities, and non-ferromagnetic substances (such as aluminum oxide) need to be removed additionally. The disadvantages of the pneumatic blowing type of scrap removal are that high-speed airflow is easy to disturb the electromagnetic field of the probe, leading to distortion of the ultrasonic signal, and particle deposition causes secondary pollution. It depends on the continuous air supply of the air compressor, which has high energy consumption and the air blowing port is easy to block. The pipeline needs to be frequently maintained due to aging and air leakage. Pure airflow is difficult to remove sticky oxides (such as high-temperature iron oxide), and needs to be combined with mechanical scraping, which complicates the system, and the dead angle such as the screw groove is easy to leave scrap.

[0039] Based on this, as shown in Figures 1 to 4 The electromagnetic ultrasonic probe cleaning mechanism in the embodiment of the application includes a probe mounting seat 10, an isolation plate 20, a driving assembly 30, and an adsorption assembly 40. The probe mounting seat 10 is used to install an electromagnetic ultrasonic probe 11. The bottom of the isolation plate 20 is provided with a groove 21 for accommodating scrap, and the isolation plate 20 is arranged below the probe mounting seat 10. The driving assembly 30 is connected with the isolation plate 20, and the driving assembly 30 acts to adjust the relative position of the isolation plate 20 and the probe mounting seat 10. The adsorption assembly 40 is connected with the groove 21 through a dust suction conduit to adsorb the scrap in the groove 21.

[0040] The working principle of the application is that during cleaning, the driving assembly 30 adjusts the relative position of the isolation plate 20 and the probe mounting seat 10, realizes the transfer of the magnetic scrap below the isolation plate 20 during the movement of the isolation plate 20, and the groove 21 arranged on the isolation plate 20 is used to guide the flow of scrap, effectively preventing the splashing phenomenon caused by the inertia of the scrap during the transfer process, avoiding secondary pollution to the detection environment, and ensuring that the scrap removal process and the detection process do not interfere with each other. Subsequently, the adsorption assembly 40 removes the scrap in the groove 21 through the dust suction conduit, avoiding the scrap remaining between the probe and the workpiece to be detected directly below, which leads to a decrease in detection accuracy.

[0041] In the embodiment, the probe mounting seat 10 is fixed on one side of the driving assembly 30, the relative position between the probe mounting seat 10 and the driving assembly 30 remains static, the adsorption assembly 40 is fixed on the upper side of the driving assembly 30, the isolation plate 20 is arranged below the probe mounting seat 10 and connected with the driving assembly 30, when the driving assembly 30 is in action, the driving plate moves linearly along the width direction of the driving assembly 30, and the projection profile always coincides with the projection profile of the probe mounting seat 10 in the vertical direction during the movement, so as to ensure that the groove 21 can sweep the debris below the electromagnetic ultrasonic probe and isolate the debris below the isolation plate 20.

[0042] Among them, the probe mounting seat 10, the driving assembly 30 and the adsorption assembly 40 can be connected by screws or welded to form an integrated structure, so as to facilitate the installation and use of the cleaning structure, or can be separately arranged to realize modular replacement.

[0043] In one embodiment, as shown in Figures 5 to 7 The driving assembly 30 includes a base 31, a lead screw driving structure 32 and a bottom plate 33, the lead screw driving structure 32 is installed on the base 31, the probe mounting seat 10 is fixed on the base 31 and extends outward, the bottom plate 33 is arranged below the base 31 and connected with the lead screw driving structure 32, so that the bottom plate 33 moves linearly, and the isolation plate 20 is connected with the bottom plate 33. The lead screw driving structure 32 in the driving module moves the isolation plate 20, dynamically transfers the debris and keeps the detection synchronization, avoids the interruption of the traditional mechanical push-pull type caused by the distance, and adopts motor driving to realize stable control of movement, avoiding the jamming problem caused by spring fatigue of the traditional push plate structure.

[0044] In the embodiment, the lead screw slider of the lead screw driving structure 32 is fixed on the bottom plate 33, so that the bottom plate 33 moves with the lead screw slider. At least one pair of guide slides is arranged on the base 31, and a slider matched with the guide slides is fixed on the bottom plate 33, so as to limit the stable linear motion of the bottom plate 33 and the isolation plate 20 connected therewith through the limiting action of the guide slides and the slider.

[0045] In one embodiment, as shown in Figure 8As shown, the adsorption assembly 40 includes a dust collection box 41, a dust collection motor 42, and a pipe joint 43; the dust collection box 41 is fixed on the base 31, the dust collection motor 42 and the pipe joint 43 are both connected with the inside of the dust collection box 41, and the pipe joint 43 is connected with the groove 21 through the dust collection pipe. The generated vortex airflow of the dust collection motor 42 sucks the waste chips in the groove 21 into the dust collection box 41 through the dust collection pipe, so as to realize the cleaning of non-magnetic waste chips, realize low-cost and high-efficiency cleaning, avoid the clogging of the joint, and have much higher maintenance convenience than the pneumatic blowing type. The number of interfaces of the pipe joint 43 is the same as the number of grooves 21 on the isolation plate 20, so as to establish the dust collection channel of each interface and groove 21, improve the dust collection strength, and effectively suck the waste chips into the dust collection box 41.

[0046] In the embodiment, as shown in Figure 9 and Figure 10 , the isolation plate 20 is provided with a plurality of pipe joints 22, the pipe joints are trumpet-shaped, each pipe joint 22 is connected with at least one groove 21 through a dust collection port 23, and the dust collection port 23 is arranged correspondingly to the pipe joint 22. Specifically, the number of the grooves 21 on the isolation plate 20 is four, and the interval distance between the adjacent two grooves 21 is the same. The central axis of the electromagnetic ultrasonic probe is always aligned with the centers of the two grooves 21 in the middle, so that the waste chips are collected by the grooves 21 at the outer end of the isolation plate 20 as much as possible, and the debris is avoided from affecting the detection process of the electromagnetic ultrasonic probe.

[0047] In one of the embodiments, as shown in Figure 11 , at least one pair of electromagnetic coil blocks 50 are further included, and the electromagnetic coil blocks 50 are oppositely arranged on the two sides of the probe mounting seat 10. The electromagnetic coil blocks 50 can pre-adsorb the surrounding magnetic debris before detection, and work cooperatively with the adsorption assembly 40 to greatly improve the cleaning ability of the magnetic debris, and avoid the excessive magnetic debris from gathering near the electromagnetic ultrasonic probe. At the same time, the electromagnetic coil blocks 50 can accurately control the strength and presence or absence of magnetism, effectively enhance the controllability of the external magnetic field, minimize the interference with the sensitivity of the electromagnetic ultrasonic flaw detection, and ensure the accuracy of the flaw detection result.

[0048] In the embodiment, the distance between the electromagnetic coil block 50 and the probe mounting seat 10 is equal to the distance between the adjacent two grooves 21. The isolation plate 20 moves the same distance each time, and the bottom of the electromagnetic coil block 50 on the two sides of the electromagnetic ultrasonic probe is also provided with a corresponding groove 21, so as to adsorb the waste chips into the groove 21 through magnetism, and then the waste chips are sucked away cooperatively with the adsorption assembly 40, thereby improving the cleaning ability.

[0049] In an embodiment, the driving assembly 30 is a belt driving structure, and the isolation plate 20 is connected to the belt driving structure to realize reciprocating linear motion. The belt driving structure can be a V-shaped belt, a circular belt, a synchronous belt, etc., and the present application is not limited thereto.

[0050] In an embodiment, as shown in Figure 7 a limit sensor 34 is further arranged on the driving assembly 30 to detect the relative position of the isolation plate 20 and the driving assembly 30. The limit sensor 34 can be a grating ruler or a magnetic grating ruler. By fixing the sensing part on the bottom plate 33 and the detection part on the base 31, when the bottom plate 33 moves, the sensing part is detected by the detection part, so as to obtain the relative position information between the isolation plate 20 and the driving assembly 30 fixed on the bottom plate 33.

[0051] In an embodiment, as shown in Figure 8 The dust collection box 41 is provided with a drawer 44 which can slide, and the drawer 44 is embedded with a magnetic part to adsorb the dust. The drawer design is convenient for the operator to clean the dust, and the magnetic part can effectively adsorb the granular magnetic dust to prevent the granular magnetic dust from blocking the pipeline joint 43.

[0052] The present application has at least the following advantages:

[0053] 1. The mechanical wear is greatly reduced, and the durability is improved. The driving assembly adopts a motor-driven screw driving structure or a belt driving structure to realize stable control of the dust removal mechanism, avoiding the jamming problem caused by spring fatigue.

[0054] 2. The dust removal precision is improved, and the secondary pollution is reduced. The groove structure is arranged on the isolation plate to guide the iron filings to a specific position, preventing the surrounding environment of the probe from being polluted by the inertia splash. The adsorption dust removal device provides negative pressure to remove the residual dust on the isolation plate and the workpiece surface, ensuring complete cleaning.

[0055] 3. The flaw detection process and the dust removal process are ensured not to interfere with each other, and the detection synchronization is improved. The driving assembly controls the position adjustment of the isolation plate relative to the electromagnetic ultrasonic probe, so that the iron filings are transferred in the area far away from the probe without affecting the flaw detection process. Compared with the mechanical push-pull type dust removal, this scheme can maintain the detection function of the probe while removing the dust, avoiding the reduction of detection efficiency due to the need of the probe to move away from the detection area.

[0056] 4. The application range is wider, and various types of impurities can be processed. The adsorption assembly can not only remove ferromagnetic iron filings, but also remove non-ferromagnetic impurities. Through the electromagnetic coil block, the strength of the magnetism can be accurately controlled to avoid affecting other detections.

[0057] 5. Energy consumption is reduced, and maintenance cost is low. The adsorption assembly is used instead of pneumatic purging, and continuous gas supply is not needed, avoiding the high energy consumption problem of pneumatic devices. The chip collection box adopts a pull-out design, which is convenient to clean and reduces the difficulty of maintenance.

[0058] 6. The dust removal ability is stronger, and the problem of magnetic saturation is avoided. The electromagnetic coil block is used instead of the traditional permanent magnet, the magnetic field strength can be dynamically adjusted, and the problem of magnet saturation caused by iron accumulation is avoided. The adsorption dust removal device cooperates with electromagnetic adsorption to realize more thorough iron cleaning.

[0059] In the embodiments of the present application, a flaw detection robot is also provided, which comprises the electromagnetic ultrasonic probe cleaning mechanism as described above. The flaw detection robot has all the beneficial effects of the electromagnetic ultrasonic probe cleaning mechanism, and the specific description has been made in the above discussion about the electromagnetic ultrasonic probe, which will not be repeated here.

[0060] It should be understood that the application of the present application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the present application.

Claims

1. An electromagnetic ultrasonic probe cleaning mechanism, characterized in that, The electromagnetic ultrasonic probe cleaning mechanism includes: Probe mounting base, used to mount electromagnetic ultrasonic probes; The isolation plate has a groove at its bottom for accommodating waste debris, and the isolation plate is spaced apart below the probe mounting base; A drive assembly connected to the isolation plate, the drive assembly being activated to adjust the relative position of the isolation plate and the probe mounting base; An adsorption component is connected to the groove via a dust suction conduit to adsorb waste debris in the groove.

2. The electromagnetic ultrasonic probe cleaning mechanism according to claim 1, characterized in that, The drive assembly includes a base, a lead screw drive structure, and a base plate. The lead screw drive structure is mounted on the base, the probe mounting base is fixed on the base and extends outward, the base plate is located below the base and is connected to the lead screw drive structure to enable the base plate to perform reciprocating linear motion, and the isolation plate is connected to the base plate.

3. The electromagnetic ultrasonic probe cleaning mechanism according to claim 2, characterized in that, The adsorption assembly includes a chip collection box, a vacuum motor, and a pipe connector; the chip collection box is fixed on the base, and the vacuum motor and the pipe connector are both connected to the interior of the chip collection box. The pipe connector is connected to the groove through the vacuum duct.

4. The electromagnetic ultrasonic probe cleaning mechanism according to claim 3, characterized in that, It also includes at least one pair of electromagnetic coil blocks, which are disposed opposite each other on both sides of the probe mounting base.

5. The electromagnetic ultrasonic probe cleaning mechanism according to claim 4, characterized in that, The number of grooves on the isolation plate is four, and the spacing between two adjacent grooves is the same.

6. The electromagnetic ultrasonic probe cleaning mechanism according to claim 5, characterized in that, The distance between the electromagnetic coil block and the probe mounting base is equal to the distance between two adjacent grooves.

7. The electromagnetic ultrasonic probe cleaning mechanism according to claim 1, characterized in that, The drive assembly is a belt drive structure, and the isolation plate is connected to the belt drive structure to achieve reciprocating linear motion.

8. The electromagnetic ultrasonic probe cleaning mechanism according to claim 1, characterized in that, It also includes a limit sensor, which is disposed on the drive assembly to detect the relative position of the isolation plate and the drive assembly.

9. The electromagnetic ultrasonic probe cleaning mechanism according to claim 3, characterized in that, The chip collection box is equipped with a sliding drawer, and the drawer is fitted with a magnetic component to attract and absorb waste chips.

10. A flaw detection robot, characterized in that, Includes the electromagnetic ultrasonic probe cleaning mechanism as described in any one of claims 1 to 9.

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