Composite steel welding seam detection equipment and detection method

Abstract

The invention relates to the field of steel welding seam detection and discloses composite steel welding seam detection equipment and method.The detection equipment comprises a storage mechanism and an adjusting mechanism, the storage mechanism comprises a storage barrel, a cleaning assembly and partition plates are arranged in the storage barrel, and the multiple partition plates are matched with the cleaning assembly to divide the interior of the storage barrel into six independent spaces; different test reagents are stored in the three spaces which are spaced from one another; the adjusting mechanism comprises a mounting cover fixedly connected with the storage barrel, a holding pipe is mounted at the bottom of the mounting cover, and an air inlet pipe is fixedly mounted at the bottom of the holding pipe; the spraying mechanism is fixedly mounted on the storage cylinder and comprises a hose; by arranging the cleaning assembly, in the operation process of the adjusting mechanism, a sliding column moves upwards, and a hose in the spraying mechanism is cleaned through an expansion ring; even if the sliding column, the hose and the expansion ring are abraded, the expansion ring can still make contact with the hose by means of expansibility, residual reagents are effectively cleaned, and mutual mixing interference of a penetrating agent, a cleaning agent and a developing agent is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of steel weld detection technology, and more particularly, to a composite steel weld detection device and a detection method. Background Art

[0002] In the field of modern industrial manufacturing, steel is an important structural material, and the quality of its welds is directly related to the safety and reliability of the entire component or equipment. If there are defects such as cracks and pores in the welds, it is very easy to cause structural failure when bearing loads, thereby leading to serious production accidents and economic losses.

[0003] At present, there are many different methods for inspecting steel welds. Among them, penetrant testing is widely used in the detection of open defects on weld surfaces due to its relatively simple operation and high detection sensitivity. The basic principle of penetrant testing is based on the capillary penetration of liquid into tiny pores on the solid surface. In actual operation, first apply penetrant to the weld area of ​​the steel material, and use the good fluidity and permeability of the penetrant to allow it to penetrate into the tiny defects on the weld surface. After the penetrant has fully penetrated, use a cleaning agent to carefully clean the excess penetrant on the steel surface to avoid interference with subsequent inspections by residual penetrant. Finally, apply a developer, which can absorb the penetrant in the defect, making defects that were originally difficult to detect with the naked eye clearly visible under the action of the developer, and the inspector can judge whether the weld is qualified based on this.

[0004] However, with the development of modern industry, steel structures have evolved towards large-scale and complex directions. When faced with large and complex steel components, the manual application of detection reagents is not only inefficient, but also difficult to ensure the quality of detection due to problems such as limited operating space and difficult-to-reach detection areas. To solve this problem, mechanical spraying is usually used to apply detection reagents. However, since multiple reagents such as penetrants, cleaning agents and developers need to be sprayed in sequence during penetration testing, in order to prevent mutual contamination between different reagents and affect the accuracy of the test results, multiple independent spraying equipment have to be used, and each device needs to be operated and controlled separately. This mode of independent operation of multiple devices not only increases the equipment purchase cost and maintenance cost, but also makes the spraying process cumbersome and complicated, reduces the detection efficiency, and is difficult to meet the needs of large-scale and rapid detection in modern industry. Therefore, we have set up a composite steel weld detection equipment and detection method. Summary of the Invention

[0005] The present invention provides a composite steel weld inspection device and inspection method, which solves the technical problems in the related art that different reagents require different spraying amounts, pressures and ranges, improper parameters when spraying penetrants, the inability to evenly cover the inspection area, resulting in missed detection of some defects; incorrect parameters when using cleaning agents, prone to excessive or incomplete cleaning, affecting the inspection results, and interfering with the display of defects by the developer.

[0006] The present invention provides a composite steel weld detection device, including a storage mechanism and an adjustment mechanism. The storage mechanism includes a storage cylinder, a cleaning assembly and multiple partitions are fixedly installed inside the storage cylinder, and six partitions are matched with the cleaning assembly to divide the inside of the storage cylinder into six independent spaces, and different test reagents are stored in three spaces spaced apart from each other; the adjustment mechanism includes a mounting cover fixedly connected to the storage cylinder, a groove wheel driven by a motor is installed inside the mounting cover, a holding tube is fixedly installed at the bottom of the mounting cover, and an air intake pipe is fixedly installed at the bottom of the holding tube; the injection mechanism is fixedly installed on the storage cylinder, and includes a hose; in the process of composite steel weld detection, the motor is controlled to drive the groove wheel to operate, so that the air intake pipe and the hose are connected to the six independent spaces in turn, and the different test reagents stored in the three spaces spaced apart from each other are discharged from the hose in turn, and the injection range of the hose is synchronously controlled to correspond to it.

[0007] As a further optimization solution of the present invention, the storage mechanism also includes a threaded plate slidably connected to the partition; a reciprocating screw rod is rotatably mounted on the storage cylinder and threadedly connected to the threaded plate.

[0008] As a further optimization solution of the present invention, the cleaning assembly includes a fixed tube fixedly connected to the storage cylinder; a sliding column, slidably installed inside the fixed tube and connected to the fixed tube through a second spring; and an expansion ring, fixedly installed on the sliding column.

[0009] As a further optimization solution of the present invention, the cleaning component also includes a one-way atomizing nozzle, which is fixedly connected to the fixed pipe, and three through holes are opened at the bottom of the fixed pipe.

[0010] As a further optimization scheme of the present invention, the adjustment mechanism also includes an installation box fixedly connected to the installation cover; a first rotating shaft, rotatably mounted on the installation box, and a groove wheel is fixedly connected to the top of the first rotating shaft; a motor, fixedly mounted inside the installation box, and its power output shaft extends to the outside of the installation box and is fixedly connected to the dial; a drive column, fixedly mounted on the dial; a rotating disk, fixedly mounted on the first rotating shaft, and a first magnetic plate is fixedly mounted on it.

[0011] As a further optimization scheme of the present invention, the adjustment mechanism also includes a first connecting tube and a second connecting tube, the first connecting tube and the second connecting tube are both fixedly connected to the mounting cover, the first connecting tube is fixedly connected to the storage cylinder, a rotating assembly is fixedly installed on the second connecting tube, and a valve assembly is fixedly installed on the first connecting tube and the second connecting tube.

[0012] As a further optimization scheme of the present invention, the valve assembly includes a ball valve, which is fixedly mounted on the first connecting pipe, and a first gear is fixedly mounted on the ball valve; a driving frame, on which a row of latch teeth are fixedly mounted, and meshes with the first gear through the latch teeth; a first slide rod, fixedly mounted on the bottom of the driving frame, and slidably connected to the mounting cover; a first spring, sleeved on the first slide rod, one end of which is fixedly connected to the driving frame, and the other end is fixedly connected to the mounting cover; a third magnetic plate, fixedly mounted on the driving frame.

[0013] As a further optimization scheme of the present invention, the rotating assembly includes a hollow disk, which is rotatably connected to the second connecting pipe and fixedly connected to the reciprocating screw; a bent pipe, fixedly mounted on the hollow disk, on which an injection mechanism is fixedly mounted; and a magnetic ring, threadedly connected to the bent pipe.

[0014] As a further optimization scheme of the present invention, the spray mechanism also includes a third connecting pipe, the third connecting pipe located at the top of the storage cylinder is fixedly connected to the storage cylinder and the one-way atomizing nozzle, and the third connecting pipe located at the hollow disk is fixedly connected to the bent pipe; a hard pipe, fixedly mounted on the third connecting pipe, and fixedly connected to the hose; a rotating frame, fixedly mounted on the hard pipe, in which a second gear is rotatably mounted; a rotating plate, one end of which is fixedly connected to the hose, and the other end of which is fixedly connected to the second gear; a sliding cover, slidably mounted on the third connecting pipe, in which a toothed plate meshing with the second gear is fixedly mounted; a third spring, sleeved on the third connecting pipe, one end of which is fixedly connected to the sliding cover, and the other end of which is fixedly connected to the hard pipe.

[0015] A method for detecting a composite steel weld detection device comprises the following steps: S1. Preparation: Clean the surface of the composite steel weld to keep it clean and dry; connect the air inlet pipe of the testing equipment to the external air supply mechanism; S2. Reagent injection: By controlling the regulating mechanism, the penetrant, cleaning agent and developer in the storage mechanism are sprayed out in sequence; S3. Inspection operation: After the penetrant is sprayed, the penetration time is determined to be 10 to 30 minutes according to the type of penetrant, the material of the test object and the temperature, and the weld surface is kept moist. After the penetration time is over, the excess penetrant is initially wiped off, and then it is thoroughly cleaned with a detergent and then dried. Then the developer is applied. S4. Defect assessment: Use a detection light source to observe the weld surface, determine the defect location and shape through the different phenomena presented by the penetrant under the ultraviolet light, record the defect information, and evaluate the defects according to relevant standards and specifications to determine their nature, severity and whether they are qualified.

[0016] The beneficial effects of the present invention are: 1. The composite steel weld inspection equipment and inspection method described in the present invention, by providing a cleaning component, during the operation of the adjustment mechanism, the motor drives the relevant components to rotate the first magnetic plate, thereby allowing gas to enter the fixed tube, pushing the sliding column upward, and utilizing the expansion ring to clean the hose in the injection mechanism; even if the sliding column, hose and expansion ring are worn, the expansion ring can still contact the hose by virtue of its expansion property, effectively cleaning residual reagents, avoiding mixing and interference of penetrants, cleaning agents and developers, and ensuring accurate and reliable inspection results.

[0017] 2. The composite steel weld detection equipment and detection method described in the present invention, on the one hand, changes its force on the permanent magnet in the sliding cover by rotating the magnetic ring, and with the help of the third spring, the toothed plate drives the second gear to rotate, driving the rotating plate to squeeze or loosen the hose, and accurately adjusts the size of the gas outlet of the hose, thereby changing the gas output pressure, spraying amount and spraying pressure to meet the spraying requirements of different reagents; on the other hand, the first magnetic plate interacts with the second magnetic plate with different magnetic force, so that the second slide rod drives the second magnetic plate to move up, acting on the sliding cover, changing the diameter of the hose, adjusting the spraying range, and improving the accuracy and adaptability of the detection.

[0018] 3. In the composite steel weld inspection equipment and method described in the present invention, during the entire inspection process, gas is input through the air inlet pipe to drive the reciprocating screw to rotate and discharge the reagent. A motor is used to drive the dial, drive column, groove wheel and other components to rotate the first magnetic plate, automatically controlling the opening of valve assemblies in different spaces in the storage cylinder, thereby realizing the sequential and interval spraying of the penetrant, cleaning agent, and developer and the automatic cleaning operation of the cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection between the regulating mechanism and the storage mechanism of the present invention; Figure 3 This is a schematic diagram of the connection between the storage cylinder and the partition of the present invention; Figure 4 It is a schematic diagram of the internal structure of the storage cartridge of the present invention; Figure 5 Schematic diagram of the internal structure of the fixed tube of the present invention; Figure 6 It is a structural schematic diagram of the fixed pipe of the present invention; Figure 7 It is a schematic diagram of the connection between the rotating disk and the motor of the present invention; Figure 8 This is a schematic diagram of the connection between the first connecting pipe and the driving frame of the present invention; Figure 9 It is a connection diagram of the rotating assembly of the present invention; Figure 10 It is a structural schematic diagram of the injection mechanism of the present invention; Figure 11 It is a flow chart of the detection method of the present invention.

[0020] In the figure: 1. Grip tube; 2. Inlet pipe; 3. Adjustment mechanism; 301. Mounting cover; 302. Rotating disk; 303. First magnetic plate; 304. Driving column; 305. Dial; 306. Motor; 307. First rotating shaft; 308. Mounting box; 309. Grooved wheel; 310. First connecting pipe; 311. Driving frame; 312. Gear; 313. First gear; 314. First spring; 315. First slide rod; 316. Ball valve; 317. Second connecting pipe; 318. Magnetic ring; 319. Hollow disk; 320. Bend pipe; 321 , third magnetic plate; 4. storage mechanism; 401. storage cylinder; 402. partition; 403. reciprocating screw; 404. second slide rod; 405. fixed tube; 406. threaded plate; 407. second magnetic plate; 408. one-way atomizing nozzle; 409. expansion ring; 410. sliding column; 411. second spring; 5. injection mechanism; 501. hose; 502. rotating plate; 503. sliding cover; 504. hard tube; 505. rotating frame; 506. tooth plate; 507. third spring; 508. third connecting tube; 509. second gear. DETAILED DESCRIPTION

[0021] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described for some examples may be combined in other examples.

[0022] like Figures 1 to 10As shown, a composite steel weld detection device according to an embodiment of the present invention includes a storage mechanism 4 and an adjustment mechanism 3. The storage mechanism 4 includes a storage cylinder 401. A cleaning assembly and multiple partitions 402 are fixedly installed inside the storage cylinder 401. The six partitions 402 and the cleaning assembly divide the interior of the storage cylinder 401 into six independent spaces, and different test reagents are stored in the three mutually spaced spaces; the adjustment mechanism 3 includes a mounting cover 301 fixedly connected to the storage cylinder 401, a groove wheel 309 driven by a motor 306 is installed inside the mounting cover 301, a holding tube 1 is fixedly installed at the bottom of the mounting cover 301, and an air intake pipe 2 is fixedly installed at the bottom of the holding tube 1; the injection mechanism 5 is fixedly installed on the storage cylinder 401, which includes a hose 501; in the process of inspecting the composite steel weld, the motor 306 is controlled to drive the groove wheel 309 to operate, so that the air intake pipe 2 and the hose 501 are connected to the six independent spaces in sequence, and the different test reagents stored in the three mutually spaced spaces are discharged from the hose 501 in sequence, and the injection range of the hose 501 is synchronously controlled to correspond thereto.

[0023] It should be noted that mechanical methods such as grinding, sandblasting, etc. or chemical methods such as pickling and alkaline cleaning should be used to remove impurities such as oil, rust, and oxide scale on the weld surface to ensure that the surface is clean and dry to ensure that the detection agent can penetrate and adsorb well.

[0024] Apply penetrant: Use composite steel weld inspection equipment to evenly apply penetrant to the weld surface, ensuring that the penetrant covers the entire inspection area and has a uniform thickness.

[0025] Maintain penetration time: Determine the appropriate penetration time based on the type of penetrant and the material, temperature and other factors of the test object, which is generally 10 to 30 minutes; during the penetration process, the weld surface should be kept moist.

[0026] Initial Removal: After the penetration time is complete, use a clean cloth or paper towel to gently wipe the weld surface to remove most of the excess penetrant.

[0027] Thorough cleaning: Use a remover or water-based cleaner to thoroughly clean the weld surface to remove residual penetrant. When cleaning, care should be taken to avoid excessive flushing of the cleaner, which may cause excessive removal of penetrant and affect the detection effect.

[0028] Drying treatment: Use drying equipment or a clean cloth to dry the weld surface to ensure that there is no moisture residue on the surface; the drying temperature generally does not exceed 50°C to avoid affecting the performance of the detection agent.

[0029] Apply developer: Spray or brush the developer evenly on the weld surface to form a thin and uniform developer film; the function of the developer is to absorb the penetrant that penetrates into the defect and make it appear on the surface.

[0030] Development time: Determine the appropriate development time based on the type of developer, the material of the test object, temperature and other factors. It is generally 10 to 30 minutes. During the development process, the test area should be protected from contamination or interference.

[0031] Observe defects: After the development time is over, use the detection light source to observe the weld surface; under ultraviolet light, the penetrant will emit fluorescence, and under white light, the penetrant will appear a different color from the background, thus showing the location and shape of the defect.

[0032] Record defects: Use cameras, drawings, etc. to record the location, shape, size and other information of defects for subsequent analysis and assessment.

[0033] Defect assessment: Assess observed defects according to relevant standards and specifications to determine the nature, severity and conformity of the defects; for example, determine whether the defect exceeds the allowable limit based on parameters such as length, width, and depth.

[0034] Among them, the use of the composite steel weld inspection equipment is to first clamp and control the holding tube 1 through a mechanical device, and then use the air inlet pipe 2 to transport the gas provided by the outside to the inside of the installation cover 301, and then control the adjustment mechanism 3 to make the adjustment mechanism 3 squeeze the corresponding storage space in the storage mechanism 4, so that the penetrant, cleaning agent, and developer can be sprayed out in sequence, and in each interval time period, there will be a cleaning component to clean the spray mechanism 5, so that the three reagents of penetrant, cleaning agent, and developer are not mixed, and after each interval spraying, it will first be switched to the corresponding space where no reagent is stored for cleaning, and then, according to the actual operation requirements, it will stay in the space for a specified time, so that the sprayed test reagent can act well on the weld, and after the time is up, it will switch to the next test reagent and use the next test reagent. The adjustment mechanism 3 will also make the spray range of the spray mechanism 5 change accordingly according to the needs of the penetrant, cleaning agent, and developer, further ensuring the accuracy of its detection. like Figure 2 and Figure 4 As shown, the storage mechanism 4 further includes a threaded plate 406 slidably connected to the partition 402 ; the reciprocating screw 403 is rotatably mounted on the storage cylinder 401 and is threadedly connected to the threaded plate 406 .

[0035] It should be noted that when the adjustment mechanism 3 is in operation, the reciprocating screw 403 will rotate, and the rotation of the reciprocating screw 403 will cause the threaded plate 406 to move upward. The upward movement of the threaded plate 406 will squeeze out the test reagent in the space. For example, the penetrant is discharged first, and the sprayed penetrant will be atomized and sprayed out from the injection mechanism 5, and finally act on the composite steel weld to complete the spraying.

[0036] like Figures 3 to 6 As shown, the cleaning assembly includes a fixed tube 405 fixedly connected to the storage tube 401; a sliding column 410 is slidably installed inside the fixed tube 405 and is connected to the fixed tube 405 through a second spring 411; an expansion ring 409 is fixedly installed on the sliding column 410; the cleaning assembly also includes a one-way atomizing nozzle 408, which is fixedly connected to the fixed tube 405, and three through holes are opened at the bottom of the fixed tube 405.

[0037] like Figure 2 and Figure 7 As shown, the adjustment mechanism 3 also includes a mounting box 308 fixedly connected to the mounting cover 301; the first rotating shaft 307 is rotatably mounted on the mounting box 308, and a groove wheel 309 is fixedly connected to the top of the first rotating shaft 307; the motor 306 is fixedly mounted inside the mounting box 308, and its power output shaft extends to the outside of the mounting box 308 and is fixedly connected to the dial 305; the driving column 304 is fixedly mounted on the dial 305; the rotating disk 302 is fixedly mounted on the first rotating shaft 307, and the first magnetic plate 303 is fixedly mounted on it.

[0038] It should be noted that the interior of the storage cylinder 401 is divided into six spaces, three of which are used to store penetrants, cleaning agents, and developers respectively, and the other three spaces are not used to store anything. The three spaces for storing things just separate the three spaces for storing penetrants, cleaning agents, and developers. In this way, when steel weld inspection is required, the air inlet pipe 2 is first connected to the external air supply mechanism, and then the gas is transported to the holding tube 1. The gas input into the holding tube 1 will enter the interior of the mounting cover 301. Since the mounting cover 301 is a cavity structure, the gas transported into the holding tube 1 directly enters its internal cavity structure, thereby using the gas to act on the pneumatic structure, so that the pneumatic structure directly drives the reciprocating screw 403 to rotate, and the rotation of the reciprocating screw 403 will cause the threaded plate 406 moves upward, thereby atomizing and discharging the penetrant in the space from the one-way atomizing nozzle 408, and the discharged penetrant will be sprayed out in a fixed range through the spraying mechanism 5. When the penetrant spraying is completed, the motor 306 is started, and the motor 306 drives the dial 305 to rotate, and the dial 305 drives the driving column 304 to rotate. The rotation of the driving column 304 will rotate the groove wheel 309, and the rotation of the groove wheel 309 will just rotate the rotating disk 302. The rotation of the rotating disk 302 drives the first magnetic plate 303 to rotate. The first magnetic plate 303 rotates and moves to a space where nothing is stored, and allows the gas transported by the air intake pipe 2 to enter it. The incoming gas will enter the fixed tube 405 through the through hole on the fixed tube 405. With the help of the gas pressure, the sliding column 410 can be moved upward. The sliding column 410 moves upward to the inside of the hose 501. Since the expansion ring 409 is fixedly installed on the sliding column 410, the expansion ring 409 will continue to expand and contact with the hose 501, which can effectively clean the residual permeate inside the hose 501, and the sliding column 410 will continue to move upward under the action of air pressure until it moves out of the fixed tube 405. In this way, the gas will blow along the sliding column 410 to spray away the residual reagent on the sliding column 410, so that the sliding column 410 will not affect the subsequent use, which is convenient for spraying the cleaning agent and the developer in the subsequent spraying. It can ensure that the three reagents do not interfere with each other and ensure the accuracy of the detection. In the process of use, the hose 501 and the sliding column 410 will wear each other, resulting in no contact, which is not conducive to cleaning, and when not After contact, the inner wall of the nozzle will be adhered to the reagent, and the inner wall will become thicker over time before it can contact the sliding column 410. In this way, the sliding column 410 can directly clean up a part of the attached reagent, but cannot clean up all of it, which still has an impact. In the cleaning process, the sliding column 410 will also be further worn. In this way, the inner wall of the hose 501 will only become thicker and thicker, while the sliding column 410 will become smaller and smaller, which will cause interference between multiple reagents. By setting the expansion ring 409, the expansion ring 409 can be used to make use of the expansion property of the expansion ring 409. Even if the sliding column 410, the hose 501, and the expansion ring 409 are all worn, the expansion ring 409 can still be made to contact the hose 501, thereby cleaning out the reagent inside the hose 501 without affecting the use of the next reagent. In addition, the gas pressure entering the air inlet pipe 2 is strong.It not only assists in the ejection of different test reagents, but also acts on the sliding column 410 to overcome the force of the second spring 411, allowing the expansion ring 409 to always clean the hose 501 well.

[0039] like Figure 8 As shown, the regulating mechanism 3 further includes a first connecting pipe 310 and a second connecting pipe 317. The first connecting pipe 310 and the second connecting pipe 317 are both fixedly connected to the mounting cover 301. The first connecting pipe 310 is fixedly connected to the storage cylinder 401. A rotating assembly is fixedly installed on the second connecting pipe 317. The rotating assembly is the above-mentioned pneumatic structure. The first connecting pipe 310 and the second connecting pipe 317 are both fixedly installed with a valve assembly. The valve assembly includes a ball valve 316, which is fixedly installed on the first connecting pipe 310 and the second connecting pipe 317. A first gear 313 is fixedly mounted on the pipe 310 and the ball valve 316; a row of latch teeth 312 is fixedly mounted on the drive frame 311, and meshes with the first gear 313 through the latch teeth 312; a first slide rod 315 is fixedly mounted on the bottom of the drive frame 311, and is slidingly connected to the mounting cover 301; a first spring 314 is sleeved on the first slide rod 315, one end of which is fixedly connected to the drive frame 311, and the other end is fixedly connected to the mounting cover 301; a third magnetic plate 321 is fixedly mounted on the drive frame 311.

[0040] It should be noted that, due to the magnetic repulsion between the third magnetic plate 321 and the first magnetic plate 303, when the motor 306 rotates the first magnetic plate 303, the first magnetic plate 303 will move from the valve assembly position where the penetrant is stored to the valve assembly between the penetrant and the cleaning agent, so that the valve assembly at the penetrant will return to its original state due to the loss of the effect of the first magnetic plate 303, and the valve assembly between the penetrant and the cleaning agent will continuously drive the driving frame 311 to move downward due to the effect of the first magnetic plate 303, so that the latch 312 will drive the first gear 313 to rotate, and the rotation of the first gear 313 will open the ball valve 316, so that the gas entering the installation cover 301 will enter the first connecting pipe 310 and enter the first connecting pipe 316. The gas inside 10 will enter the corresponding space in the storage cylinder 401, and then enter the fixed tube 405 from the through hole on the fixed tube 405 to drive the expansion ring 409 to start working. When the expansion ring 409 is completed, the motor 306 is controlled again to make the first magnetic plate 303 continue to move, so that the first magnetic plate 303 will move to the top of the valve assembly at the detergent, so that the detergent is discharged and the spraying is completed. Finally, the first magnetic plate 303 continues to move and moves to the valve assembly at the detergent and developer, so that it drives the expansion ring 409 to continue cleaning. After the cleaning is completed, the first magnetic plate 303 continues to rotate and moves to the top of the valve assembly at the developer to spray the developer for use, thereby completing the entire detection operation process.

[0041] like Figure 2 and Figure 9As shown, the rotating assembly includes a hollow disk 319, which is rotatably connected to the second connecting tube 317 and fixedly connected to the reciprocating screw 403; the bent pipe 320 is fixedly mounted on the hollow disk 319, on which the injection mechanism 5 is fixedly mounted; the magnetic ring 318 is threadedly connected to the bent pipe 320.

[0042] It should be noted that when the first magnetic plate 303 is located above the valve assembly of any one of the penetrant, cleaning agent, and developer, the first magnetic plate 303 will open the ball valve 316, so that the gas entering the holding tube 1 will be transported to the corresponding second connecting tube 317, and the gas entering the second connecting tube 317 will enter the hollow disk 319 and be discharged from the bend 320 and the injection mechanism 5. Since the ejected gas is at an inclined angle, it will exert a reaction force on the hollow disk 319, which can cause the hollow disk 319 to rotate. The rotation of the hollow disk 319 will cause the reciprocating screw 403 to rotate together. When the reciprocating screw 403 rotates, the threaded plate 406 moves, so that the corresponding reagent can be discharged for use.

[0043] like Figure 10 As shown, the injection mechanism 5 also includes a third connecting pipe 508, the third connecting pipe 508 located at the top of the storage cylinder 401 is fixedly connected to the storage cylinder 401 and the one-way atomizing nozzle 408, and the third connecting pipe 508 located at the hollow disk 319 is fixedly connected to the bent pipe 320; the hard pipe 504 is fixedly mounted on the third connecting pipe 508 and fixedly connected to the hose 501; the rotating frame 505 is fixedly mounted on the hard pipe 504, and a second gear 509 is rotatably mounted therein; one end of the rotating plate 502 is fixedly connected to the hose 501, and the other end is fixedly connected to the second gear 509; the sliding cover 503 is slidably mounted on the third connecting pipe 508, and a tooth plate 506 meshing with the second gear 509 is fixedly mounted therein; the third spring 507 is sleeved on the third connecting pipe 508, one end of which is fixedly connected to the sliding cover 503, and the other end of which is fixedly connected to the hard pipe 504.

[0044] It should be noted that, in the process of weld inspection, penetrant, cleaning agent and developer need to be used, but the spraying amount and spraying pressure of penetrant, cleaning agent and developer are not the same. Different spraying amount and spraying pressure have different effects on different reagents. Since the sliding cover 503 has a built-in permanent magnet, by rotating the magnetic ring 318, the magnetic ring 318 is moved away from the sliding cover 503 at the penetrant position, so that the force of the magnetic ring 318 acting on the permanent magnet on the sliding cover 503 will become smaller, and under the action of the third spring 507, the tooth plate 506 will drive the second gear 509 to rotate, so that the multiple rotating plates 502 will be close to each other, thereby squeezing the soft Tube 501 makes the gas outlet of the hose 501 smaller. Since the outlet becomes smaller, the gas delivery can be accelerated, and the output air pressure can be greater, which can drive the hollow disk 319 to rotate faster. The faster the rotation speed of the hollow disk 319, the faster the rotation speed of the reciprocating screw 403. In this way, the reciprocating screw 403 can move the threaded plate 406 upward more quickly, so that more penetrant can be discharged in the same time. Discharging more penetrant in the same time will increase the discharge speed of the penetrant, so that the pressure of its injection will also become greater. The specific spraying amount and spraying pressure can be adjusted according to actual requirements, and the same operation is applied to the developer and cleaning agent.

[0045] like Figure 4 As shown, a plurality of second slide bars 404 are slidably connected to the storage cylinder 401 , and a second magnetic plate 407 is fixedly mounted on the bottom of the second slide bar 404 .

[0046] It should be noted that the three second magnetic plates 407 correspond to the three positions of the penetrant, the cleaning agent, and the developer. Since the penetrant, the cleaning agent, and the developer are not sprayed over a larger range during the spraying process, they need to be sprayed in an appropriate amount. The second magnetic plate 407 and the first magnetic plate 303 magnetically repel each other, but the magnetic forces of the three second magnetic plates 407 are different, and thus the interactions with the second magnetic plate 407 will also be different. In this way, when the first magnetic plate 303 moves to the penetrant position, it can not only act on the valve assembly at that position, but also enable the second magnetic plate 407 to drive the second slide bar 404 to move upward. The upward movement of the second slide bar 404 will act on the sliding cover 503, causing the gear plate 506 to act on the second gear 509, causing the rotating plate 502 to rotate, thereby changing the caliber of the hose 501 and achieving the effect of changing the spraying range. The same operation is performed for the cleaning agent and the developer. The difference is that different reagents can change the caliber of the hose 501 to different degrees, which corresponds to each other, and can better meet the detection requirements and improve the accuracy of the detection.

[0047] like Figure 11 As shown, a detection method for composite steel weld detection equipment includes the following steps: S1. Preparation: Use mechanical or chemical methods to clean the surface of the composite steel weld to remove impurities such as oil, rust, and scale, and keep the surface clean and dry; connect the air inlet pipe 2 of the detection equipment to the external air supply mechanism; S2. Reagent injection: The penetrant, cleaning agent, and developer in the storage mechanism 4 are sequentially and intermittently ejected by controlling the regulating mechanism 3. Specifically, the motor 306 in the regulating mechanism 3 drives the relevant components to rotate, driving the first magnetic plate 303 to control the opening of the valve assemblies corresponding to different spaces in the storage cylinder 401, so that the corresponding reagents are ejected through the injection mechanism 5. In between each reagent injection, the regulating mechanism 3 drives the cleaning assembly to clean the injection mechanism 5 to prevent the reagents from mixing. S3. Inspection operation: After the penetrant is sprayed, the penetration time is determined to be 10 to 30 minutes according to its type, the material of the inspection object and the temperature, and the weld surface is kept moist. After the penetration time is over, the excess penetrant is initially wiped off, and then it is thoroughly cleaned with a detergent, and then dried at a temperature not exceeding 50°C. Then, the developer is applied, and the development time is determined to be 10 to 30 minutes according to the type of developer to avoid contamination and interference in the inspection area. S4. Defect assessment: Use a detection light source to observe the weld surface, determine the defect location and shape through the different phenomena presented by the penetrant under ultraviolet light or white light, record the defect information, and evaluate the defects according to relevant standards and specifications to determine their nature, severity and whether they are qualified; throughout the process, the adjustment mechanism 3 adjusts the diameter of the hose 501 in the injection mechanism 5 according to the needs of different reagents by rotating the magnetic ring 318 and utilizing the magnetic repulsion between the second magnetic plate 407 and the first magnetic plate 303, changing the injection range and pressure to ensure the accuracy of the detection.

[0048] Working principle: When the composite steel weld inspection equipment is working, external gas enters the holding tube 1 through the air inlet pipe 2, and then enters the mounting cover 301, driving the reciprocating screw 403 to rotate; the reciprocating screw 403 drives the threaded plate 406 threadedly connected to it to move upward, squeezing the penetrant in the corresponding space of the storage cylinder 401 from the one-way atomizing nozzle 408 and atomizing it, and then spraying it out through the hose 501 in the injection mechanism 5 to act on the surface of the composite steel weld.

[0049] After the penetrant spraying is completed, the motor 306 is started, and the power output shaft of the motor 306 drives the dial 305 to rotate, and the driving column 304 on the dial 305 rotates accordingly, driving the groove wheel 309 to rotate, and then the rotating disk 302 fixed on the same first rotating shaft 307 as the groove wheel 309 rotates, and the rotating disk 302 drives the first magnetic plate 303 to rotate.

[0050] When the first magnetic plate 303 rotates to a space position where no reagent is stored, the gas transported by the air inlet pipe 2 enters the space and then enters the fixed tube 405 through the through hole on the fixed tube 405; the gas pressure pushes the sliding column 410 to overcome the elastic force of the second spring 411 and move upward, and the expansion ring 409 on the sliding column 410 enters the hose 501, and the expansion property of the expansion ring 409 is used to clean the residual penetrant in the hose 501 to prevent different reagents from interfering with each other.

[0051] The first magnetic plate 303 continues to rotate, and due to the magnetic repulsion between it and the third magnetic plate 321, the driving frame 311 moves downward, and the locking teeth 312 on the driving frame 311 engage with the first gear 313, driving the first gear 313 to rotate, thereby opening the ball valve 316; at this time, the gas entering the mounting cover 301 enters the space corresponding to the storage of the cleaning agent in the storage cylinder 401 through the first connecting pipe 310, pushing the cleaning agent to be discharged from the one-way atomizing nozzle 408 and sprayed out through the injection mechanism 5, completing the spraying of the cleaning agent; thereafter, the above cleaning process is repeated, and the first magnetic plate 303 is rotated to the top of the valve assembly corresponding to the developer storage space, and the valve is opened to allow the developer to spray out.

[0052] When the gas enters the hollow disk 319 through the second connecting pipe 317 and is discharged from the bent pipe 320 and the injection mechanism 5, the reaction force of the injected gas causes the hollow disk 319 to rotate, and the hollow disk 319 drives the reciprocating screw 403 to rotate, further controlling the discharge of the reagent; at the same time, according to the different reagent spraying requirements, the magnetic ring 318 is rotated to change its force on the permanent magnet in the sliding cover 503. Under the action of the third spring 507, the gear plate 506 drives the second gear 509 to rotate, driving the rotating plate 502 to rotate, squeezing or loosening the hose 501, adjusting the size of the gas outlet of the hose 501, and changing the gas output pressure, spraying amount and spraying pressure; in addition, the first magnetic plate 303 interacts with the second magnetic plate 407 with different magnetic forces, so that the second slide bar 404 drives the second magnetic plate 407 to move upward, acting on the sliding cover 503, changing the caliber of the hose 501, adjusting the spraying range, and ultimately achieving accurate detection of the composite steel weld.

[0053] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A composite steel weld detection device, comprising a storage mechanism (4) and an adjustment mechanism (3), characterized in that: The storage mechanism (4) includes a storage cylinder (401), wherein a cleaning assembly and a plurality of partitions (402) are fixedly installed inside the storage cylinder (401), and the six partitions (402) and the cleaning assembly divide the interior of the storage cylinder (401) into six independent spaces, and different test reagents are stored in three of the spaces spaced apart from each other; The regulating mechanism (3) comprises a mounting cover (301) fixedly connected to the storage cylinder (401), a groove wheel (309) driven by a motor (306) being mounted inside the mounting cover (301), a gripping tube (1) being fixedly mounted on the bottom of the mounting cover (301), and an air intake pipe (2) being fixedly mounted on the bottom of the gripping tube (1); The spray mechanism (5) is fixedly mounted on the storage cylinder (401) and includes a hose (501); when the weld of the composite steel material needs to be inspected, the motor (306) is controlled to drive the groove wheel (309) to operate, so that the air intake pipe (2) and the hose (501) are connected to the six independent spaces in sequence, and different test reagents stored in the three mutually spaced spaces are discharged from the hose (501) in sequence, and the spray range of the hose (501) is synchronously controlled to correspond to the six independent spaces.

2. The composite steel weld detection device according to claim 1, characterized in that: The storage mechanism (4) further includes a threaded plate (406) slidably connected to the partition (402); The reciprocating screw rod (403) is rotatably mounted on the storage barrel (401) and is threadably connected to the threaded plate (406).

3. The composite steel weld detection device according to claim 1, characterized in that: The cleaning assembly comprises a fixed tube (405) fixedly connected to the storage cylinder (401); A sliding column (410) is slidably mounted inside the fixed tube (405) and connected to the fixed tube (405) via a second spring (411); The expansion ring (409) is fixedly mounted on the sliding column (410).

4. The composite steel weld detection device according to claim 3, characterized in that: The cleaning assembly further comprises a one-way atomizing nozzle (408), wherein the one-way atomizing nozzle (408) is fixedly connected to the fixed tube (405), and three through holes are formed at the bottom of the fixed tube (405).

5. The composite steel weld detection device according to claim 4, characterized in that: The adjustment mechanism (3) further includes a mounting box (308) fixedly connected to the mounting cover (301); A first rotating shaft (307) is rotatably mounted on the mounting box (308), and a grooved wheel (309) is fixedly connected to the top of the first rotating shaft (307); A motor (306) is fixedly mounted inside the mounting box (308), with its power output shaft extending outside the mounting box (308) and fixedly connected to the dial (305); A driving column (304) is fixedly mounted on the dial (305); The rotating disk (302) is fixedly mounted on the first rotating shaft (307), and a first magnetic plate (303) is fixedly mounted on the rotating disk.

6. The composite steel weld detection device according to claim 5, characterized in that: The regulating mechanism (3) further comprises a first connecting tube (310) and a second connecting tube (317), wherein the first connecting tube (310) and the second connecting tube (317) are both fixedly connected to the mounting cover (301), the first connecting tube (310) is fixedly connected to the storage cylinder (401), a rotating assembly is fixedly mounted on the second connecting tube (317), and a valve assembly is fixedly mounted on the first connecting tube (310) and the second connecting tube (317).

7. The composite steel weld detection device according to claim 6, characterized in that: The valve assembly includes a ball valve (316), the ball valve (316) is fixedly mounted on each of the first connecting pipes (310), and a first gear (313) is fixedly mounted on the ball valve (316); A driving frame (311) on which a row of latch teeth (312) is fixedly mounted and meshes with the first gear (313) via the latch teeth (312); A first sliding rod (315) is fixedly mounted on the bottom of the driving frame (311) and is slidably connected to the mounting cover (301); A first spring (314) is sleeved on the first slide rod (315), one end of which is fixedly connected to the driving frame (311) and the other end of which is fixedly connected to the mounting cover (301); The third magnetic plate (321) is fixedly mounted on the driving frame (311).

8. The composite steel weld detection equipment according to claim 6, characterized in that: The rotating assembly includes a hollow disk (319), the hollow disk (319) is rotatably connected to the second connecting tube (317), and the hollow disk (319) is fixedly connected to the reciprocating screw (403); A curved pipe (320) is fixedly mounted on the hollow disk (319), and a spray mechanism (5) is fixedly mounted on the curved pipe; The magnetic ring (318) is threadably connected to the bent pipe (320).

9. The composite steel weld detection device according to claim 8, characterized in that: The spraying mechanism (5) further comprises a third connecting pipe (508), the third connecting pipe (508) located at the top of the storage cylinder (401) being fixedly connected to the storage cylinder (401) and the one-way atomizing nozzle (408), and the third connecting pipe (508) located at the hollow disk (319) being fixedly connected to the elbow (320); A hard tube (504) is fixedly mounted on the third connecting tube (508) and is fixedly connected to the flexible tube (501); A rotating frame (505) is fixedly mounted on the hard tube (504), and a second gear (509) is rotatably mounted therein; A rotating plate (502), one end of which is fixedly connected to the hose (501), and the other end of which is fixedly connected to the second gear (509); A sliding cover (503) is slidably mounted on the third connecting pipe (508), and a tooth plate (506) meshing with the second gear (509) is fixedly mounted inside the sliding cover; The third spring (507) is sleeved on the third connecting tube (508), one end of which is fixedly connected to the sliding cover (503) and the other end of which is fixedly connected to the hard tube (504).

10. The detection method of composite steel weld detection equipment according to any one of claims 1 to 9, characterized in that: Follow these steps: S1. Preparation: Clean the surface of the composite steel weld to keep it clean and dry; connect the air inlet pipe (2) of the testing equipment to the external air supply mechanism; S2, reagent injection: by controlling the regulating mechanism (3), the penetrant, cleaning agent and developer in the storage mechanism (4) are sprayed out in sequence and at intervals; S3. Inspection operation: After the penetrant is sprayed, the penetration time is determined to be 10 to 30 minutes according to the type of penetrant, the material of the test object and the temperature, and the weld surface is kept moist. After the penetration time is over, the excess penetrant is initially wiped off, and then it is thoroughly cleaned with a detergent and then dried. Then the developer is applied. S4. Defect assessment: Use a detection light source to observe the weld surface, determine the defect location and shape through the different phenomena presented by the penetrant under the ultraviolet light, record the defect information, and evaluate the defects according to relevant standards and specifications to determine their nature, severity and whether they are qualified.

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