Laser ultrasonic detection device for nondestructive testing

Abstract

The laser ultrasonic detection device comprises a detection frame, a controller is connected to the front side of the left side of the detection frame in a bolted mode, a conveying structure is arranged in the detection frame, a screening opening is formed in the left side of the detection frame, and a discharging plate is communicated with the left side of the screening opening. By arranging the detection frame, the controller, the conveying structure, the screening opening, the discharging plate, the gear assembly, the detection mechanism and the pushing and discharging structure, when a to-be-detected product is placed on the conveying structure, the conveying structure conveys the product forwards, and in the conveying process, when the product passes through the position below the detection mechanism, the product is separated from the discharging plate, so that the product is detected. The height sensor detects the height information of the product and transmits the information to the controller, the controller controls the second electric push rod to stretch out and draw back according to a preset program, the lifting plate is made to descend to the proper height, and the laser ultrasonic detector body detects the product.

Description

Technical Field

[0001] The utility model relates to the technical field of laser ultrasonic detection, in particular to a laser ultrasonic detection device for non-destructive detection. Background Art

[0002] Laser ultrasonic testing is a new, non-contact, high-precision, and non-destructive ultrasonic testing technology. It uses laser pulses to excite ultrasonic waves in the workpiece being tested and uses a laser beam to detect the propagation of ultrasonic waves, thereby obtaining workpiece information such as workpiece thickness, internal and surface defects, material parameters, etc. This technology combines the high precision of ultrasonic testing with the non-contact advantages of optical testing, and has the advantages of high sensitivity and wide detection bandwidth. Laser ultrasonic testing technology appeared in mature commercial systems in the late 1990s and was first applied in the seamless steel pipe industry. Currently, the mature industrial applications of this technology have expanded to many fields, including silicon wafer testing, online monitoring of laser welding weld quality, wind turbine blade inspection, aircraft fuselage lap corrosion inspection, high-temperature ceramics, metals, and composite materials inspection, electronic component / semiconductor packaging quality inspection, and defect detection of various material coatings. Commercial systems for other applications are also maturing and entering the market.

[0003] At present, the Chinese utility model with the announcement number: CN212321513U discloses a laser ultrasonic detection device for non-destructive testing. This utility model discloses a laser ultrasonic detection device for non-destructive testing, including a detection base, the top of the detection base is provided with a clamping transfer mechanism, a laser ultrasonic detection mechanism, a loading platform, a detection platform and a unloading platform. The clamping transfer mechanism includes a transverse rectangular concave groove with a transverse screw rod for transmission connection, a fixed seat, a rectangular support rod, an electric rotary worktable, a horizontal connecting rod, a square connecting plate, a hydraulic cylinder and a clamp. The clamp includes an inverted U-shaped fixed panel, two cylinders, and two splints. The laser ultrasonic detection mechanism includes two isosceles trapezoidal supports, two rectangular mounting blocks, an inverted T-shaped support and a rectangular fixed panel screwed and fixed on the left side of the inverted T-shaped support and fixedly connected to the laser ultrasonic detector. This utility model can realize continuous loading and continuous detection of products, greatly reduce labor intensity and effectively improve detection efficiency.

[0004] According to the above patent, when the existing laser ultrasonic detection device for non-destructive testing is used, the continuous loading, clamping and fixing and transfer of the product are realized through the clamping and transfer mechanism, and the laser ultrasonic detection mechanism is used for detection. In actual use, because it needs to load and unload the product repeatedly, it will seriously affect the detection efficiency and operation efficiency. In addition, it is not convenient to perform screening operations when problems are detected in the product. Therefore, the above patent is improved based on the problems raised. Utility Model Content

[0005] The main purpose of the utility model is to provide a laser ultrasonic detection device for non-destructive testing, which aims to solve the problem that when the laser ultrasonic detection device for non-destructive testing is used, continuous loading, clamping and fixing of products and transfer loading and unloading of products are realized through a clamping and transferring mechanism, and the laser ultrasonic detection mechanism is used for detection. In actual use, the repeated loading and unloading of products is required, which seriously affects the detection efficiency and the operating efficiency. In addition, it is not convenient to perform screening operations when problems with the product are detected.

[0006] To achieve the above-mentioned purpose, the utility model proposes a laser ultrasonic detection device for non-destructive testing, which includes a detection frame, a controller is bolted to the front side of the left side of the detection frame, a conveying structure is provided inside the detection frame, a screening port is provided on the left side of the detection frame, a row plate is connected to the left side of the screening port, a gear assembly is provided on the top of the detection frame, the gear assembly is electrically connected to the controller, a detection mechanism is provided on the top of the detection frame, the detection mechanism is electrically connected to the controller, a push-discharge structure is provided on the right side of the detection frame, the push-discharge structure is located on the right side of the screening port, and the push-discharge structure is electrically connected to the controller;

[0007] The shift assembly includes a bracket, a first electric push rod and a limit plate, the bracket is bolted to the right side of the top of the detection frame, the first electric push rod is bolted to the top of the bracket, the first electric push rod is electrically connected to the controller, the telescopic end of the first electric push rod passes through the top of the bracket, and the top of the limit plate is bolted to the telescopic end of the first electric push rod;

[0008] The detection mechanism includes a support plate, a second electric push rod, a lifting plate, a height sensor and a laser ultrasonic detector body. The support plate is bolted to the right side of the top of the detection frame, the second electric push rod is bolted to the top of the support plate, the second electric push rod is electrically connected to the controller, the telescopic end of the second electric push rod passes through the top of the support plate, the top of the lifting plate is bolted to the telescopic end of the second electric push rod, the height sensor is bolted to the front side of the bottom of the lifting plate, the height sensor is electrically connected to the controller, and the laser ultrasonic detector body is bolted to the bottom of the lifting plate.

[0009] Preferably, the conveying structure includes a motor bolted to the left side of the detection frame, the output end of the motor passes through the left side of the detection frame, the motor is electrically connected to the controller, the output end of the motor is bolted to the main shaft, the rear side of the detection frame is rotatably connected to the secondary shaft, and the outer sides of the main shaft and the secondary shaft are sleeved with conveyor belts.

[0010] Preferably, the pushing and discharging structure includes a third electric push rod bolted to the right side of the detection frame, the third electric push rod is electrically connected to the controller, the telescopic end of the third electric push rod passes through the right side of the detection frame, the telescopic end of the third electric push rod is bolted with a push plate, and the push plate is located on the right side inside the detection frame.

[0011] Preferably, baffles are bolted to both sides of the top of the row of plates, and the baffles are located on the left side of the detection frame.

[0012] Preferably, a buffer plate is bonded to the inner side of the push plate, and the buffer plate is made of rubber material.

[0013] Preferably, four corners of the bottom of the detection frame are bolted with supporting legs, and the supporting legs are disc-shaped.

[0014] Preferably, a sliding groove is provided on the right side inside the support plate, and a slider is bolted to the right side of the lifting plate, and the slider is slidably connected to the inside of the sliding groove.

[0015] In the technical solution of the present invention, a detection frame, a controller, a conveying structure, a screening port, a row plate, a gear assembly, a detection mechanism and a pushing and discharging structure are set. When the product to be detected is placed on the conveying structure, the conveying structure conveys the product forward. During the conveying process, when the product passes under the detection mechanism, the height sensor detects the height information of the product and transmits the information to the controller. The controller controls the extension and retraction of the second electric push rod according to a preset program to lower the lifting plate to an appropriate height. The laser ultrasonic detector body detects the product. After the detection is completed, if the product is qualified, the conveying structure continues to convey the product to the right. If the product is unqualified, the controller controls the first The electric push rod extends, causing the limit plate to drop, preventing unqualified products from moving forward. At the same time, the controller controls the push-out structure to start, pushing the unqualified products to the screening port, and the unqualified products are discharged through the discharge plate, realizing the screening operation of unqualified products. During the whole process, the conveying structure realizes continuous loading and conveying of products, the detection mechanism can automatically detect the products, and the gear assembly and the push-out structure cooperate to realize the screening of unqualified products. There is no need for repeated loading and unloading, which greatly improves the detection efficiency and operation efficiency. This design can effectively improve the working efficiency and accuracy of laser ultrasonic detection devices for non-destructive testing, reduce manual intervention, reduce labor intensity, and improve production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2This is a schematic diagram of the conveying structure of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the gear assembly according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the detection mechanism of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the push-discharge structure of an embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the plate arrangement structure of an embodiment of the present utility model.

[0023] Explanation of the accompanying numbers: 1. Detection frame; 2. Controller; 3. Conveying structure; 301. Motor; 302. Main shaft; 303. Secondary shaft; 304. Conveyor belt; 4. Screening port; 5. Row plate; 6. Shift assembly; 601. Bracket; 602. First electric push rod; 603. Limiting plate; 7. Detection mechanism; 701. Support plate; 702. Second electric push rod; 703. Lifting plate; 704. Height sensor; 705. Laser ultrasonic detector body; 8. Pushing and discharging structure; 801. Third electric push rod; 802. Pushing plate; 9. Baffle; 10. Buffer plate; 11. Support leg; 12. Slide groove; 13. Slider.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The utility model provides a laser ultrasonic detection device for non-destructive testing, which aims to solve the problem that when the laser ultrasonic detection device for non-destructive testing is used, continuous loading, clamping and fixing, and transfer loading and unloading of products are realized by a clamping and transferring mechanism, and the laser ultrasonic detection mechanism is used for detection. In actual use, the repeated loading and unloading is required, which seriously affects the detection efficiency and the working efficiency, and it is not convenient to perform the screening operation when a problem with the product is detected.

[0030] like Figure 1-6 As shown, a laser ultrasonic detection device for non-destructive testing provided by an embodiment of the present invention includes a detection frame 1, a controller 2 is bolted to the front side of the left side of the detection frame 1, a conveying structure 3 is provided inside the detection frame 1, a screening port 4 is opened on the left side of the detection frame 1, and a row plate 5 is connected to the left side of the screening port 4, a gear assembly 6 is provided on the top of the detection frame 1, and the gear assembly 6 is electrically connected to the controller 2, a detection mechanism 7 is provided on the top of the detection frame 1, and the detection mechanism 7 is electrically connected to the controller 2, and a push-discharge structure 8 is provided on the right side of the detection frame 1, and the push-discharge structure 8 is located on the right side of the screening port 4, and the push-discharge structure 8 is electrically connected to the controller 2;

[0031] The shift assembly 6 includes a bracket 601, a first electric push rod 602, and a limit plate 603. The bracket 601 is bolted to the right side of the top of the detection frame 1. The first electric push rod 602 is bolted to the top of the bracket 601. The first electric push rod 602 is electrically connected to the controller 2. The telescopic end of the first electric push rod 602 passes through the top of the bracket 601. The top of the limit plate 603 is bolted to the telescopic end of the first electric push rod 602.

[0032] The detection mechanism 7 includes a support plate 701, a second electric push rod 702, a lifting plate 703, a height sensor 704 and a laser ultrasonic detector body 705. The support plate 701 is bolted to the right side of the top of the detection frame 1, the second electric push rod 702 is bolted to the top of the support plate 701, the second electric push rod 702 is electrically connected to the controller 2, the telescopic end of the second electric push rod 702 passes through the top of the support plate 701, the top of the lifting plate 703 is bolted to the telescopic end of the second electric push rod 702, the height sensor 704 is bolted to the front side of the bottom of the lifting plate 703, the height sensor 704 is electrically connected to the controller 2, and the laser ultrasonic detector body 705 is bolted to the bottom of the lifting plate 703.

[0033] In the technical solution of the present invention, by setting up a detection frame 1, a controller 2, a conveying structure 3, a screening port 4, a row plate 5, a gear assembly 6, a detection mechanism 7 and a pushing structure 8, when the product to be detected is placed on the conveying structure 3, the conveying structure 3 conveys the product forward. During the conveying process, when the product passes under the detection mechanism 7, the height sensor 704 detects the height information of the product and transmits the information to the controller 2. The controller 2 controls the extension and contraction of the second electric push rod 702 according to a preset program, so that the lifting plate 703 drops to an appropriate height, and the laser ultrasonic detector body 705 detects the product. After the detection is completed, if the product is qualified, the conveying structure 3 continues to convey the product to the right. If the product is unqualified, the controller Device 2 controls the extension of the first electric push rod 602, causing the limit plate 603 to drop, preventing unqualified products from continuing to move forward. At the same time, controller 2 controls the push-out structure 8 to start, pushing the unqualified products to the screening port 4, and the unqualified products are discharged through the discharge plate 5, realizing the screening operation of unqualified products. During the whole process, the conveying structure 3 realizes continuous loading and conveying of products, and the detection mechanism 7 can automatically detect the products. The gear assembly 6 and the push-out structure 8 cooperate to realize the screening of unqualified products, without the need for repeated loading and unloading, which greatly improves the detection efficiency and operation efficiency. This design can effectively improve the working efficiency and accuracy of the laser ultrasonic detection device for non-destructive testing, reduce manual intervention, reduce labor intensity, and improve production quality.

[0034] Please refer to Figure 2The conveying structure 3 includes a motor 301 bolted to the left side of the detection frame 1. The output end of the motor 301 passes through the left side of the detection frame 1. The motor 301 is electrically connected to the controller 2. The output end of the motor 301 is bolted to the main shaft 302. The rear side of the detection frame 1 is rotatably connected to the secondary shaft 303. The outer sides of the main shaft 302 and the secondary shaft 303 are sleeved with a conveyor belt 304. In this embodiment, by providing the motor 301, the main shaft 302, the secondary shaft 303 and the conveyor belt 304, after the motor 301 is started, its output end drives the main shaft 302 to rotate. The main shaft 302 drives the secondary shaft 303 to rotate through the conveyor belt 304, thereby realizing the operation of the conveyor belt 304, which can stably convey products to the right and provide a basis for continuous detection.

[0035] For further information, please refer to Figure 5 The push-out structure 8 includes a third electric push rod 801 bolted to the right side of the inspection frame 1. The third electric push rod 801 is electrically connected to the controller 2. The telescopic end of the third electric push rod 801 extends through the right side of the inspection frame 1. A push plate 802 is bolted to the telescopic end of the third electric push rod 801. The push plate 802 is located on the right side of the interior of the inspection frame 1. In this embodiment, by providing the third electric push rod 801 and the push plate 802, when unqualified products are detected, the controller 2 controls the third electric push rod 801 to extend, and the push plate 802 moves accordingly, pushing the unqualified products toward the screening port 4. The push plate 802 can quickly and accurately push out unqualified products, thereby improving screening efficiency.

[0036] Please continue to refer to Figure 6 Baffles 9 are bolted to both sides of the top of the row plate 5, and the baffles 9 are located on the left side of the inspection frame 1. In this embodiment, by providing baffles 9 on both sides of the top of the row plate 5, it is possible to prevent unqualified products from falling from both sides of the row plate 5 during the discharge process, ensuring smooth discharge of products and avoiding product scattering.

[0037] Please refer to Figure 5 A buffer plate 10 made of rubber is bonded to the inner side of the push plate 802. In this embodiment, by providing the buffer plate 10, which is made of rubber, when the push plate 802 pushes unqualified products, the buffer plate 10 can act as a buffer, reducing the impact on the products and preventing them from being damaged during the pushing and ejecting process.

[0038] Also, please refer to Figure 1 The four corners of the bottom of the detection frame 1 are bolted with support legs 11, which are in the shape of a disc. In this embodiment, by providing the support legs 11, the support legs 11 are in the shape of a disc, which can stably support the detection frame 1, ensuring that the entire device remains stable during operation and reducing the impact of shaking and vibration on the detection results.

[0039] Also, please refer to Figure 4A chute 12 is provided on the right side of the support plate 701, and a slider 13 is bolted to the right side of the lifting plate 703. The slider 13 is slidably connected to the inside of the chute 12. In this embodiment, by providing the chute 12 and the slider 13, when the lifting plate 703 moves up and down, the slider 13 slides within the chute 12, which can ensure the movement stability of the lifting plate 703, allowing the laser ultrasonic detector body 705 to accurately detect products, thereby improving the detection accuracy.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A laser ultrasonic testing device for nondestructive testing, characterized in that: The laser ultrasonic detection device for non-destructive testing comprises a detection frame (1), a controller (2) is bolted to the front side of the left side of the detection frame (1), a conveying structure (3) is provided inside the detection frame (1), a screening port (4) is provided on the left side of the detection frame (1), a row plate (5) is connected to the left side of the screening port (4), a gear assembly (6) is provided on the top of the detection frame (1), the gear assembly (6) is electrically connected to the controller (2), a detection mechanism (7) is provided on the top of the detection frame (1), the detection mechanism (7) is electrically connected to the controller (2), a push-discharge structure (8) is provided on the right side of the detection frame (1), the push-discharge structure (8) is located on the right side of the screening port (4), and the push-discharge structure (8) is electrically connected to the controller (2); The shift assembly (6) includes a bracket (601), a first electric push rod (602) and a limit plate (603); the bracket (601) is bolted to the right side of the top of the detection frame (1); the first electric push rod (602) is bolted to the top of the bracket (601); the first electric push rod (602) is electrically connected to the controller (2); the telescopic end of the first electric push rod (602) passes through the top of the bracket (601); the top of the limit plate (603) is bolted to the telescopic end of the first electric push rod (602); The detection mechanism (7) includes a support plate (701), a second electric push rod (702), a lifting plate (703), a height sensor (704) and a laser ultrasonic detector body (705), wherein the support plate (701) is bolted to the right side of the top of the detection frame (1), the second electric push rod (702) is bolted to the top of the support plate (701), the second electric push rod (702) is electrically connected to the controller (2), the telescopic end of the second electric push rod (702) passes through the top of the support plate (701), the top of the lifting plate (703) is bolted to the telescopic end of the second electric push rod (702), the height sensor (704) is bolted to the front side of the bottom of the lifting plate (703), the height sensor (704) is electrically connected to the controller (2), and the laser ultrasonic detector body (705) is bolted to the bottom of the lifting plate (703).

2. The laser ultrasonic testing device for nondestructive testing according to claim 1, characterized in that: The conveying structure (3) comprises a motor (301) bolted to the left side of the detection frame (1); the output end of the motor (301) passes through the left side of the detection frame (1); the motor (301) is electrically connected to the controller (2); the output end of the motor (301) is bolted to a main shaft (302); the rear side of the detection frame (1) is rotatably connected to a secondary shaft (303); and the outer sides of the main shaft (302) and the secondary shaft (303) are sleeved with a conveyor belt (304).

3. The laser ultrasonic testing device for nondestructive testing according to claim 1, characterized in that: The pushing and discharging structure (8) includes a third electric push rod (801) bolted to the right side of the detection frame (1), the third electric push rod (801) is electrically connected to the controller (2), the telescopic end of the third electric push rod (801) passes through the right side of the detection frame (1), and the telescopic end of the third electric push rod (801) is bolted to a push plate (802), and the push plate (802) is located on the right side inside the detection frame (1).

4. The laser ultrasonic testing device for nondestructive testing according to claim 1, characterized in that: Baffles (9) are bolted to both sides of the top of the row of plates (5), and the baffles (9) are located on the left side of the detection frame (1).

5. The laser ultrasonic testing device for nondestructive testing according to claim 3, characterized in that: A buffer plate (10) is bonded to the inner side of the push plate (802), and the buffer plate (10) is made of rubber material.

6. The laser ultrasonic testing device for nondestructive testing according to claim 1, characterized in that: The four corners of the bottom of the detection frame (1) are bolted with supporting legs (11), and the supporting legs (11) are in the shape of a disc.

7. The laser ultrasonic testing device for nondestructive testing according to claim 1, characterized in that: A sliding groove (12) is provided on the right side of the support plate (701), and a slider (13) is bolted to the right side of the lifting plate (703), and the slider (13) is slidably connected to the inside of the sliding groove (12).

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