Intelligent detection device for welding defects of switching power supply

By designing an intelligent detection device for welding defects in a switching power supply with a weld zone cleaning function, the problem of weld slag and dust affecting detection accuracy has been solved, achieving efficient and accurate detection of welding defects.

CN224095714UActive Publication Date: 2026-04-07SHENZHEN QIANZEHAO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing welding defect detection devices suffer from ultrasonic signal reflection or scattering due to the presence of impurities such as welding slag and dust when detecting switching power supplies, which affects the detection accuracy.

Method used

An intelligent inspection device was designed, comprising a support frame, a conveying structure, an inspection box, an industrial camera, a display screen, and a control panel. It is equipped with an air pump and nozzles to remove welding slag and dust, and the nozzle angle is adjusted by a servo motor-driven conveying roller and worm gear system. Combined with a bidirectional screw, the guide plate position is adjusted to ensure the cleanliness of the welding area.

Benefits of technology

This process achieved cleaning of the weld area, improved detection accuracy and efficiency, and ensured the accuracy of the detection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding defect detection of switching power supplies, in particular to an intelligent welding defect detection device of a switching power supply, which comprises a support frame, a conveying structure, a detection box, a support plate, an industrial camera, a display screen and a control panel, a detection box is installed on the supporting frame, a supporting plate is fixedly connected to the detection box, an industrial camera is installed on the supporting plate, a display screen is installed on the detection box, a control panel is installed on the supporting frame, and the control panel is electrically connected with the display screen and the industrial camera. By starting the air pump, the air pump blows away welding slag, dust and other impurities on the switching power supply through the spray head and the air guide pipe, so that the welding area of the switching power supply is ensured to be clean, and the detection precision can be ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to switch power supply welding defect detection technical field especially relates to a switch power supply's welding defect intelligent detection device. BACKGROUND

[0002] Switch power supply welding refers to in the process of manufacturing switch power supply, through heating makes the solder to melt and connects electronic component pin and the pad on the circuit board, thereby realizes the process of electrical connection, needs using detection equipment to detect the welding area after welding, ensures that the welding is correct.

[0003] The patent with the authorized announcement number CN221405539U discloses a kind of welding defect detection devices.For welding defect detection using the patent, by letting the detection head on mobile assembly plate align the welding seam of welded ring, by turning the welded ring, so that the detection head can well detect welding seam, but the above existing patent still has some deficiencies in actual use, since the above existing patent only has the function of detecting welding area, but there are welding slag, dust and other impurities on the welded switch power supply, direct detection can cause the reflection or scattering of ultrasonic signal, so that the detection result appears deviation.

[0004] Therefore, it is necessary to provide a switch power supply welding defect intelligent detection device with welding area cleaning function. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings that the above existing patent only has the function of detecting welding area, but there are welding slag, dust and other impurities on the welded switch power supply, direct detection can cause the reflection or scattering of ultrasonic signal, so that the detection result appears deviation, the utility model provides a switch power supply welding defect intelligent detection device with welding area cleaning function.

[0006] In order to achieve the above problems, the utility model discloses the following technical scheme: a welding defect intelligent detection device of switching power supply, be provided with support frame, conveying structure, detection box, support plate, industrial camera, display screen and control panel, be provided with conveying structure for conveying switching power supply on the support frame, be installed with detection box on the support frame, be fixedly connected with support plate on the detection box, be installed with industrial camera on the support plate, be installed with display screen on the detection box, be installed with control panel on the support frame, control panel and display screen and industrial camera electric connection, still including air pump, support seat, mounting, spray head, fixed base and air pipe, be installed with air pump on the detection box, air pump and control panel electric connection, two support seats are fixedly connected on the detection box, the mounting is rotatably arranged on the support seat, the spray head is fixedly connected between two mountings, the air pipe is connected between air pump and spray head, two fixed bases are fixedly connected on the detection box, and the air pipe passes through two fixed bases.

[0007] More preferably, the conveying structure comprises a second rotating shaft, a conveying roller, a servo motor and a belt pulley assembly, the servo motor is installed on the support frame, a second rotating shaft is connected to the output shaft of the servo motor through a shaft coupling, a plurality of identical second rotating shafts are rotatably arranged on the support frame, a conveying roller is fixedly connected to the second rotating shaft, and a belt pulley assembly is arranged between two adjacent second rotating shafts.

[0008] More preferably, the utility model further comprises a bearing seat, a first rotating shaft, a worm gear, a worm, a winding rod and a pull rope, two bearing seats are fixedly connected to the detection box, a first rotating shaft is rotatably arranged between the two bearing seats, a worm gear is fixedly connected to the first rotating shaft, a worm is rotatably arranged on the detection box, the worm gear is engaged with the worm, a winding rod is fixedly connected to the mounting, and a pull rope is wound around the two ends of the first rotating shaft, and the other end of the pull rope is fixedly connected to the corresponding winding rod.

[0009] More preferably, the utility model further comprises a guide rod, a bidirectional screw rod, a mounting plate and a guide plate, the bidirectional screw rod is rotatably arranged on the detection box, the guide rod is fixedly connected to the detection box, two mounting plates are threadedly arranged on the bidirectional screw rod, the mounting plates slide on the guide rod, and the guide plate is fixedly connected to the mounting plate.

[0010] More preferably, the utility model further comprises a protective shell, the protective shell is fixedly connected to the support frame, and the servo motor is located in the protective shell.

[0011] More preferably, the utility model further comprises a dust curtain, a plurality of dust curtains are arranged on both sides of the detection box.

[0012] More preferably, the air pipe connected to the spray head is in a corrugated tube structure.

[0013] More preferably, a hand wheel is fixedly connected to the worm.

[0014] Compared with the prior art, the utility model have following technical effects: 1, through starting the air pump, air pump passes to the nozzle and the air pipe and removes the impurity such as welding slag, dust on the switching power supply, to guarantee the welding area clean of switching power supply, and then can guarantee its detection accuracy.

[0015] 2, through starting servo motor, the output shaft of servo motor drives second shaft, and rotates remaining second shaft in turn through belt pulley assembly, and second shaft drives conveying cylinder to rotate simultaneously, to this can make conveying cylinder automatic conveying switching power supply.

[0016] 3, through rotating hand wheel on worm, worm and worm wheel engage, make its worm wheel rotation drive first shaft rotation and collect pull rope simultaneously, and pull rope is collected and drives winding bar to move, and winding bar drives mounting piece and nozzle to rotate simultaneously in moving, to this can change the angle of nozzle, and then can carry out uniform blowing to switching power supply, guarantee clean accuracy.

[0017] 4, through rotating bidirectional screw rod, bidirectional screw rod drives two mounting plates on itself to move, and mounting plate drives guide plate to move simultaneously, and then can change the position of guide plate according to the size of switching power supply, to this can make two guide plates to switch on switching power supply. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0019] Figure 2 It is the three-dimensional sectional structure schematic diagram of the utility model support frame, detection box and mounting plate.

[0020] Figure 3 It is the three-dimensional structure schematic diagram of the utility model guide rod, bidirectional screw rod and guide plate.

[0021] Figure 4 It is the three-dimensional sectional structure schematic diagram of the utility model detection box, support plate and industrial camera.

[0022] Figure 5 It is the three-dimensional structure schematic diagram of the utility model detection box, worm and dustproof curtain.

[0023] Figure 6 It is the three-dimensional sectional structure schematic diagram of the utility model fixed seat, bearing seat and air pipe.

[0024] Figure 7 It is the three-dimensional sectional structure schematic diagram of the utility model support frame, conveying cylinder and servo motor.

[0025] The components are as follows: 1-Support frame, 2-Detection box, 3-Support plate, 4-Industrial camera, 5-Display screen, 6-Control panel, 7-Air pump, 8-Support base, 9-Mounting component, 10-Nozzle, 11-Fixed base, 12-Air guide pipe, 13-Bearing seat, 14-First rotating shaft, 15-Worm gear, 16-Worm, 17-Winding rod, 18-Pull rope, 19-Guide rod, 20-Bidirectional screw, 21-Mounting plate, 22-Guide plate, 23-Second rotating shaft, 24-Conveying roller, 25-Servo motor, 26-Pulley assembly, 27-Protective shell, 28-Dustproof curtain. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] Example 1: An intelligent detection device for welding defects in a switching power supply, see reference. Figures 1-2 and Figures 4-7 As shown, the device includes a support frame 1, a conveyor structure, a testing box 2, a support plate 3, an industrial camera 4, a display screen 5, and a control panel 6. The support frame 1 has a conveyor structure for transporting the switching power supply. The testing box 2 is mounted at the rear of the support frame 1. The support plate 3 is welded to the right side of the testing box 2, and the industrial camera 4 is bolted to the left side of the support plate 3. The industrial camera 4 is located inside the testing box 2 and above the conveyor structure. The display screen 5 is bolted to the upper right side of the testing box 2, and the control panel 6 is bolted to the middle of the support frame 1. The control panel 6 and the display screen 5 are connected together. Electrically connected to the industrial camera 4, the device also includes an air pump 7, a support base 8, a mounting component 9, a nozzle 10, a fixed base 11, and an air guide pipe 12. The air pump 7 is bolted to the lower right side of the detection box 2. The air pump 7 is electrically connected to the control panel 6. The support base 8 is symmetrically fixed to the upper front side of the detection box 2. The mounting component 9 is rotatably mounted on the lower part of the support base 8. The nozzle 10 is fixedly connected between the bottoms of the two mounting components 9. The air guide pipe 12 is connected between the air pump 7 and the nozzle 10. The air guide pipe 12 is a flexible hose. The fixed base 11 is symmetrically fixed to the right front side of the detection box 2. The air guide pipe 12 passes through the two fixed bases 11.

[0028] See Figure 1 As shown, it also includes a dustproof curtain 28, and multiple dustproof curtains 28 are evenly spaced on the left and right sides of the detection box 2.

[0029] See Figure 5 and Figure 6As shown, the connection between the air duct 12 and the nozzle 10 is a corrugated pipe structure, which increases the ductability of the air duct 12.

[0030] When performing welding defect detection on a switching power supply, the power supply is first placed on a conveyor structure and transported to the detection chamber 2. At this time, the control panel 6 starts the air pump 7, which blows away welding slag, dust and other impurities on the power supply through the nozzle 10 and the air guide pipe 12, thus ensuring the cleanliness of the welding area of ​​the power supply and ensuring its detection accuracy. After cleaning, the control panel 6 is operated again to start the industrial camera 4 to detect the power supply and convert the detected values ​​into numerical signals and transmit them to the control panel 6. The control panel 6 then compares the preset values ​​and displays the results and values ​​on the display screen 5. After the detection is completed, the power supply is removed and the power supply to be tested is placed in place. The dust curtain 28 can prevent external impurities from entering the detection chamber 2.

[0031] Example 2: Based on Example 1, refer to Figure 2 , Figure 4 and Figure 7 As shown, the conveying structure includes a second rotating shaft 23, a conveying roller 24, a servo motor 25, and a pulley assembly 26. The servo motor 25 is bolted to the upper left side of the support frame 1. The output shaft of the servo motor 25 is connected to the second rotating shaft 23 via a coupling. Multiple identical second rotating shafts 23 are evenly spaced and rotated on the support frame 1. All the second rotating shafts 23 are located on the same horizontal line. The conveying roller 24 is fixedly connected to the second rotating shaft 23. A pulley assembly 26 is provided between the ends of two adjacent second rotating shafts 23. The pulley assembly 26 consists of two pulleys and a flat belt. The pulleys are fixedly connected to the second rotating shaft 23, and the flat belt is wound around the two pulleys.

[0032] See Figure 2 , Figure 4 and Figure 7 As shown, it also includes a protective shell 27. The protective shell 27 is fixedly connected to the upper left side of the support frame 1, and the servo motor 25 is located inside the protective shell 27.

[0033] When the conveyor structure is in use, the servo motor 25 is started, and the output shaft of the servo motor 25 drives the second rotating shaft 23. The pulley assembly 26 then drives the remaining second rotating shafts 23 to rotate in sequence. As the second rotating shafts 23 rotate, they drive the conveyor roller 24 to rotate. This enables the conveyor roller 24 to automatically supply the switching power supply and speed up the detection efficiency. When the conveyor structure is not needed, the servo motor 25 can be turned off. The protective shell 27 can protect the servo motor 25 and prevent it from being damaged.

[0034] See Figure 1 , Figure 5 andFigure 6 As shown, it also includes a bearing housing 13, a first rotating shaft 14, a worm gear 15, a worm 16, a winding rod 17, and a pull rope 18. The bearing housings 13 are symmetrically fixedly connected to the front side of the middle of the test box 2. The first rotating shaft 14 is rotatably arranged between the two bearing housings 13. The worm gear 15 is fixedly connected to the middle of the first rotating shaft 14. The worm 16 is rotatably arranged to the front side of the middle of the test box 2. The worm 16 is located above the worm gear 15. The worm gear 15 meshes with the worm 16. The winding rod 17 is fixedly connected to the front of the mounting part 9. Pull ropes 18 are wound around both ends of the first rotating shaft 14. The other end of the pull rope 18 is fixedly connected to the corresponding winding rod 17.

[0035] See Figure 1 , Figure 5 and Figure 6 As shown, a handwheel is fixedly connected to the front end of the worm gear 16 to facilitate better rotation of the worm gear 16.

[0036] When the nozzle 10 is spraying air, by turning the handwheel on the worm gear 16, the worm gear 16 meshes with the worm wheel 15, causing the worm wheel 15 to rotate and drive the first rotating shaft 14 to rotate. While the first rotating shaft 14 is rotating, it winds up the pull rope 18. After the pull rope 18 is wound up, it drives the winding rod 17 to move. While the winding rod 17 is moving, it drives the mounting part 9 and the nozzle 10 to rotate, thereby changing the angle of the nozzle 10, which in turn enables uniform air blowing to the switching power supply and ensures cleaning accuracy.

[0037] See Figure 2 and Figure 3 As shown, it also includes a guide rod 19, a bidirectional screw 20, a mounting plate 21, and a guide plate 22. The bidirectional screw 20 is rotatably mounted on the upper part of the detection box 2, and the guide rod 19 is fixedly connected to the upper part of the detection box 2. The mounting plates 21 are threaded on both the left and right ends of the bidirectional screw 20. The mounting plates 21 slide on the guide rod 19, and the bottom of the mounting plates 21 guides the plate 22 by welding. The guide plate 22 is located above the conveying roller 24.

[0038] Before placing the switching power supply, the bidirectional screw 20 is rotated, which drives the two mounting plates 21 on itself to move. As the mounting plates 21 move, the guide plates 22 also move. This allows the position of the guide plates 22 to be changed according to the size of the switching power supply, so that the two guide plates 22 can be aligned with the switching power supply, ensuring that the industrial camera 4 can detect a complete image and enhancing detection accuracy.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An intelligent detection device for welding defects of a switching power supply, comprising a support frame (1), a conveying structure, a detection box (2), a support plate (3), an industrial camera (4), a display screen (5), and a control panel (6), wherein the support frame (1) is provided with a conveying structure for conveying the switching power supply, the detection box (2) is mounted on the support frame (1), the support plate (3) is fixedly connected to the detection box (2), the industrial camera (4) is mounted on the support plate (3), the display screen (5) is mounted on the detection box (2), and the control panel (6) is mounted on the support frame (1), wherein the control panel (6) is electrically connected to the display screen (5) and the industrial camera (4), characterized in that, It also includes an air pump (7), a support base (8), a mounting component (9), a nozzle (10), a fixed base (11), and an air guide pipe (12). The air pump (7) is installed on the test box (2) and is electrically connected to the control panel (6). Two support bases (8) are fixedly connected to the test box (2). The mounting component (9) is rotatably installed on the support base (8). The nozzle (10) is fixedly connected between the two mounting components (9). The air guide pipe (12) is connected between the air pump (7) and the nozzle (10). Two fixed bases (11) are fixedly connected to the test box (2), and the air guide pipe (12) passes through the two fixed bases (11).

2. The intelligent detection device for welding defects in a switching power supply according to claim 1, characterized in that, The conveying structure includes a second rotating shaft (23), a conveying roller (24), a servo motor (25), and a pulley assembly (26). The servo motor (25) is mounted on the support frame (1). The output shaft of the servo motor (25) is connected to the second rotating shaft (23) via a coupling. Multiple identical second rotating shafts (23) are rotatably arranged on the support frame (1). The conveying roller (24) is fixedly connected to the second rotating shaft (23). A pulley assembly (26) is arranged between two adjacent second rotating shafts (23).

3. The intelligent detection device for welding defects in a switching power supply according to claim 2, characterized in that, It also includes a bearing housing (13), a first rotating shaft (14), a worm gear (15), a worm (16), a winding rod (17), and a pull rope (18). Two bearing housings (13) are fixedly connected to the test box (2). The first rotating shaft (14) is rotatably arranged between the two bearing housings (13). The worm gear (15) is fixedly connected to the first rotating shaft (14). The worm (16) is rotatably arranged on the test box (2). The worm gear (15) meshes with the worm (16). The winding rod (17) is fixedly connected to the mounting part (9). The first rotating shaft (14) has a pull rope (18) wound around both ends. The other end of the pull rope (18) is fixedly connected to the corresponding winding rod (17).

4. The intelligent detection device for welding defects in a switching power supply according to claim 3, characterized in that, It also includes a guide rod (19), a double screw (20), a mounting plate (21) and a guide plate (22). The double screw (20) is rotatably mounted on the test box (2). The guide rod (19) is fixedly connected to the test box (2). Two mounting plates (21) are threaded on the double screw (20). The mounting plates (21) slide on the guide rod (19). The guide plate (22) is fixedly connected to the mounting plate (21).

5. The intelligent detection device for welding defects in a switching power supply according to claim 4, characterized in that, It also includes a protective shell (27), which is fixedly connected to the support frame (1), and the servo motor (25) is located inside the protective shell (27).

6. The intelligent detection device for welding defects in a switching power supply according to claim 5, characterized in that, It also includes dust curtains (28), and multiple dust curtains (28) are installed on both sides of the testing box (2).

7. The intelligent detection device for welding defects in a switching power supply according to claim 6, characterized in that, The connection between the air duct (12) and the nozzle (10) is a corrugated pipe structure.

8. The intelligent detection device for welding defects in a switching power supply according to claim 7, characterized in that, A handwheel is fixedly connected to the worm gear (16).

Citation Information

Patent Citations

  • Welding defect detection device

    CN221405539U