Contact defect detection device with fixing effect

Abstract

The utility model discloses a contact defect detection device with a fixing effect, which relates to the technical field of contact detection and comprises a base and an objective table, a fixing plate is mounted on the rear side of the upper part of the base, a ball screw is mounted in a mounting frame, and a defect detection probe is mounted below a sliding block assembly through an electric telescopic rod; a rotating rod is installed on the front side of the fixing plate through a bearing seat, and a transmission shaft penetrates through the supporting plate. And grooves are formed in the left side and the right side of the upper surface of the objective table. According to the contact defect detection device with the fixing effect, through cooperation of the threaded rod and the fixing piece, flexible adjustment can be conducted according to the size of a contact, the contact is stably fixed to the objective table, displacement of the contact in the detection process is avoided, the accuracy of the detection result is guaranteed, the protection piece further assists in positioning and protecting the contact, and the detection efficiency is improved. And the fixing reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of contact detection technology, specifically a contact defect detection device with a fixing effect. Background Technology

[0002] The operational stability, reliability, and safety of electrical equipment are paramount. Whether it's a circuit breaker in a high-voltage transmission system or a contactor and relay in low-voltage distribution equipment, the quality of the contacts plays a decisive role. A high-performance contact ensures a reliable circuit connection, reduces contact resistance, minimizes heat generation and energy loss, thereby guaranteeing the efficient operation of electrical equipment. Conversely, defects in the contacts, such as surface oxidation, wear, deformation, or cracks, can lead to serious problems like poor contact, arcing, and short circuits, causing electrical equipment failures or even fires, resulting in significant losses to production and daily life.

[0003] To ensure the safe and stable operation of electrical equipment, rigorous defect detection of contacts is essential. Currently, various contact defect detection devices are available on the market, employing different detection principles, such as optical detection, electrical performance testing, and ultrasonic testing, to identify various potential defects in the contacts.

[0004] For example, Chinese utility model patent application number 202222569033.0 discloses a product defect detection device. When detecting defects in a product, it facilitates timely supplemental lighting when acquiring images of the product's inspection surface, preventing insufficient light from affecting image acquisition, increasing clarity, and improving the accuracy of product defect detection. However, this device still has certain shortcomings.

[0005] When the inspection surface of a product is inclined, it is not convenient to adjust the angle of the product, which makes it difficult for the inspection device to inspect the product surface better. At the same time, it is not convenient to fix the product, further highlighting the shortcomings of traditional defect inspection devices when dealing with complex product shapes.

[0006] Therefore, we propose a contact defect detection device with a fixed effect to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a contact defect detection device with a fixing effect, so as to solve the problem mentioned in the background art that when the detection surface of a product is inclined, it is not convenient to adjust the angle of the product, which makes it impossible for the detection device to better detect the product surface and is not convenient to fix the product. This further highlights the shortcomings of traditional defect detection devices when facing complex product shapes.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a contact defect detection device with a fixing effect, comprising a base and a platform, a fixing plate is installed on the upper rear side of the base, and a mounting frame is installed on the front surface of the fixing plate, a ball screw is installed inside the mounting frame, and a slider assembly is installed on the ball screw, and a defect detection probe is installed below the slider assembly via an electric telescopic rod;

[0009] A rotating rod is mounted on the front side of the fixed plate via a bearing seat, and a support plate is mounted above the rotating rod via a connecting strip. A drive shaft passes through the support plate, and a platform is mounted on the upper end of the drive shaft.

[0010] The upper surface of the platform has grooves on both the left and right sides, and threaded rods are installed on both the left and right sides of the platform, with fixing plates installed on the opposite side of each threaded rod.

[0011] A fixed column is installed at the lower end of the drive shaft, and limit grooves are opened on both the left and right sides of the fixed column. A connecting frame is installed below the support plate, and the limit column passes through the connecting frame. A worm gear assembly is installed on the rotating rod. An n-shaped frame is installed on the upper surface of the base, and a worm gear assembly is installed in the n-shaped frame through a bearing seat.

[0012] Preferably, the slider assembly is slidably connected to the mounting frame, the left side of the ball screw is connected to the servo motor, and the servo motor is fixed to the left side of the mounting frame.

[0013] The above structural design allows for flexible adjustment of the defect detection probe's position, enabling the probe to precisely approach the contact for detection, meeting the detection needs of different contacts, and improving the accuracy and comprehensiveness of the detection.

[0014] Preferably, limit bearings are installed on both the front and rear sides of the rotating rod, and the limit bearings are fixed to the upper surface of the base.

[0015] The above structural design supports and limits the rotating rod, ensuring its stability during rotation and preventing wobbling or deviation, thus guaranteeing the smooth rotation of the platform.

[0016] Preferably, two limiting components are installed on the drive shaft, and the limiting components abut against the upper and lower sides of the support plate respectively.

[0017] The above structural design effectively restricts the axial movement of the drive shaft, further enhancing its stability when the stage rotates, preventing axial movement of the drive shaft, and improving the reliability of the detection device during operation.

[0018] Preferably, protective plates are installed on opposite sides of the groove, and the threaded rod is threadedly connected to the platform.

[0019] The above structural design allows for flexible fixing according to the contact size. The protective plate protects the contact from damage during the fixing process, improving the reliability and stability of the fixing and avoiding the impact of improper fixing on the test results.

[0020] Preferably, the center line of the limiting post coincides with the center line of the limiting groove, and a disc is installed at the right end of the limiting post. The disc is located on the right side of the connecting frame, and the disc is connected to the connecting frame by a telescopic spring.

[0021] By adopting the above structural design, the positions of the contacts on the stage can be interchanged. After one side of the contacts is inspected, the other side of the contacts can be inspected without readjusting the position of the defect detection probe, which improves the inspection efficiency and avoids damage to the defect detection probe when disassembling the contacts.

[0022] Preferably, the worm gear assembly and the worm wheel assembly mesh with each other, and the worm wheel assembly is fixedly connected to the rotating rod.

[0023] The above structural design allows for easy adjustment of the stage angle to meet the detection requirements of different inclined contact points, expanding the applicability of the detection device and improving the comprehensiveness and flexibility of the detection.

[0024] Compared with the prior art, the beneficial effects of this utility model are: the contact defect detection device with fixing effect:

[0025] 1. Good fixing effect: Through the cooperation of threaded rod and fixing plate, the size of the contact can be flexibly adjusted to fix the contact firmly on the stage, avoiding contact displacement during the test and ensuring the accuracy of the test results. The protective plate further assists in positioning and protecting the contact, improving the reliability of fixing.

[0026] 2. Flexible angle adjustment: Utilizing the transmission structure of worm gear assembly, worm wheel assembly, rotating rod and transmission shaft, the angle of the contact on the stage can be easily adjusted, which is suitable for detecting contacts with different slopes, expanding the application range of the detection device and improving the comprehensiveness of the detection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0028] Figure 2 This is a schematic diagram showing the position and structure of the mounting frame and ball screw in this utility model.

[0029] Figure 3 This is a schematic diagram of the platform structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the telescopic spring mounting structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the fixed column structure of this utility model;

[0032] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0033] In the diagram: 1. Base; 2. Fixing plate; 3. Mounting frame; 4. Servo motor; 5. Ball screw; 6. Slider assembly; 7. Defect detection probe; 8. Rotating rod; 9. Limit bearing; 10. Connecting bar; 11. Support plate; 12. Drive shaft; 13. Limiting assembly; 14. Stage; 15. Groove; 16. Protective plate; 17. Threaded rod; 18. Fixing plate; 19. Fixing post; 20. Limiting groove; 21. Connecting frame; 22. Limiting post; 23. Disc; 24. Telescopic spring; 25. Worm gear assembly; 26. N-shaped frame; 27. Worm gear assembly. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-6This utility model provides a technical solution: a contact defect detection device with a fixing effect, comprising a base 1, a fixing plate 2, a mounting frame 3, a servo motor 4, a ball screw 5, a slider assembly 6, a defect detection probe 7, a rotating rod 8, a limit bearing 9, a connecting strip 10, a support plate 11, a transmission shaft 12, a limit assembly 13, a platform 14, a groove 15, a protective plate 16, a threaded rod 17, a fixing plate 18, a fixing post 19, a limit groove 20, a connecting frame 21, a limit post 22, a disc 23, a telescopic spring 24, a worm gear assembly 25, an n-shaped frame 26, and a worm gear assembly 27. The fixing plate 2 is installed on the upper rear side of the base 1, and the mounting frame 3 is installed on the front surface of the fixing plate 2. The ball screw 5 is installed inside the mounting frame 3, and a slider is installed on the ball screw 5. Component 6, the slider assembly 6 is slidably connected to the mounting frame 3, the left side of the ball screw 5 is connected to the servo motor 4, the servo motor 4 is fixed on the left side of the mounting frame 3, the servo motor 4 is started, the servo motor 4 drives the ball screw 5 to rotate, the ball screw 5 drives the slider assembly 6 to move left and right along the ball screw 5 within the mounting frame 3, the electric telescopic rod below the slider assembly 6 adjusts the height of the defect detection probe 7 according to the detection requirements, so as to facilitate the adjustment of the position of the defect detection probe 7, so that the defect detection probe 7 is close to the contact, and performs defect detection on the contact. During the detection process, the defect detection probe 7 transmits the detected signal to the external display device for analysis and display, so as to determine whether there is a defect in the contact. The defect detection probe 7 is installed below the slider assembly 6 through the electric telescopic rod.

[0036] A rotating rod 8 is mounted on the front side of the fixed plate 2 via a bearing seat. Limit bearings 9 are installed on both the front and rear sides of the rotating rod 8. The limit bearings 9 are fixed to the upper surface of the base 1. The limit bearings 9 support and limit the rotating rod 8, ensuring that the rotating rod 8 rotates smoothly. A support plate 11 is mounted above the rotating rod 8 via a connecting strip 10. A drive shaft 12 passes through the support plate 11. Limit components 13 are installed on the drive shaft 12. There are two limit components 13. The limit components 13 abut against the upper and lower sides of the support plate 11 respectively. The limit components 13 restrict the axial movement of the drive shaft 12, making the drive shaft 12 more stable when rotating. A platform 14 is mounted on the upper end of the drive shaft 12.

[0037] The upper surface of the stage 14 has grooves 15 on both the left and right sides. A protective plate 16 is installed on the opposite side of each groove 15. The threaded rod 17 is threadedly connected to the stage 14. With the contact detection position facing upward, the contact is placed in the groove 15. When the threaded rod 17 is rotated, the fixed plate 18 will move horizontally. The fixed plate 18 moves closer to the contact to fix it. The protective plate 16 protects the contact. A protective pad is installed on the fixed plate 18. The stage 14 has threaded rods 17 on both the left and right sides, and a fixed plate 18 is installed on the opposite side of each threaded rod 17.

[0038] A fixing post 19 is installed at the lower end of the drive shaft 12, and limit grooves 20 are opened on both the left and right sides of the fixing post 19. A connecting frame 21 is installed below the support plate 11, and a limit post 22 passes through the connecting frame 21. The center line of the limit post 22 coincides with the center line of the limit groove 20. A disc 23 is installed at the right end of the limit post 22. The disc 23 is located on the right side of the connecting frame 21. The disc 23 and the connecting frame 21 are connected by a telescopic spring 24. After the right-side contact detection is completed... Pull the disc 23 to the right. The disc 23 causes the limiting post 22 to disengage from the limiting groove 20 on the right side of the fixed post 19. At this time, the telescopic spring 24 is in a stretched state. Then rotate the fixed post 19 to 180° and release the disc 23. The disc 23 and the limiting post 22 move to the left under the action of the rebound force of the telescopic spring 24, so that the limiting post 22 abuts against the limiting groove 20 on the right side of the fixed post 19, thereby completing the limiting of the fixed post 19. When the fixed post 19 rotates, the fixed post 19 drives the upper part of the fixed post 19 to rotate. The stage 14 is rotated 180°, causing the positions of the contacts on the left and right sides of the upper surface of the stage 14 to be interchanged. The contact that has been inspected is located on the left side of the stage 14, so that the defect detection probe 7 above will not be damaged when the contact is removed. At the same time, when inspecting the second contact, there is no need to adjust the position of the defect detection probe 7. A worm gear assembly 25 is installed on the rotating rod 8, and an n-shaped frame 26 is installed on the upper surface of the base 1. A worm gear assembly 27 is installed in the n-shaped frame 26 through a bearing seat. The worm gear assembly 27 and the worm gear assembly 25 are meshed with each other, and the worm gear assembly 25 is fixedly connected to the rotating rod 8. When the contact inspection surface is an inclined surface, rotating the worm gear assembly 27 causes the worm gear assembly 25 to drive the rotating rod 8 to rotate around its axis. The rotating rod 8 drives the support plate 11 to rotate through the connecting strip 10. The transmission shaft 12 on the support plate 11 rotates accordingly, thereby causing the stage 14 installed on the upper end of the transmission shaft 12 to rotate, realizing the adjustment of the contact angle to meet the inspection requirements of different inspection surfaces.

[0039] The defect detection probe 7 in this application can be selected with appropriate detection equipment according to the actual detection situation, such as camera detection device, optical imaging probe, resistance measurement probe, etc. The defect detection probe 7 is the prior art in this field, and its internal structure and principle will not be described in detail here.

[0040] Working principle: When using this contact defect detection device with a fixing effect, first, place the contact detection position upwards in the groove 15, rotate the threaded rod 17. When the threaded rod 17 rotates, it will drive the fixing plate 18 to move horizontally. The fixing plate 18 moves closer to the contact, thus fixing the contact. Start the servo motor 4, which drives the ball screw 5 to rotate. The ball screw 5 drives the slider assembly 6 to move left and right along the ball screw 5 within the mounting frame 3. The electric telescopic rod below the slider assembly 6 adjusts the height of the defect detection probe 7 according to the detection requirements, thereby facilitating the adjustment of the position of the defect detection probe 7 so that it is close to the contact for defect detection. During the detection process, the defect detection probe 7 transmits the detected signal to an external display device for analysis and display, thereby determining whether there is a defect in the contact.

[0041] After the right-side contact is inspected, pull the disc 23 to the right. The disc 23 causes the limiting post 22 to disengage from the limiting groove 20 on the right side of the fixed post 19. At this time, the telescopic spring 24 is in a stretched state. Then, rotate the fixed post 19 to 180° and release the disc 23. The disc 23 and the limiting post 22 move to the left under the action of the telescopic spring 24, so that the limiting post 22 abuts against the limiting groove 20 on the right side of the fixed post 19, thereby completing the limiting of the fixed post 19. When the fixed post 19 rotates, it causes the upper platform 14 to rotate 180°, so that the positions of the contacts on the left and right sides of the upper surface of the platform 14 are interchanged. The inspected contact is located on the left side of the platform 14, so that the defect detection probe 7 above will not be damaged when the contact is removed. At the same time, when inspecting the second contact, there is no need to adjust the position of the defect detection probe 7.

[0042] When the contact detection surface is inclined, rotating the worm gear assembly 27 causes the worm wheel assembly 25 to drive the rotating rod 8 to rotate around its axis. The rotating rod 8 drives the support plate 11 to rotate via the connecting strip 10, and the transmission shaft 12 on the support plate 11 rotates accordingly. This, in turn, causes the stage 14 mounted on the upper end of the transmission shaft 12 to rotate, thereby adjusting the contact angle to meet the detection requirements of different detection surfaces and completing a series of tasks. Content not described in detail in this specification is prior art known to those skilled in the art.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A contact defect detection device with fixing effect, comprising a base (1) and a stage (14), a fixing plate (2) is installed on the upper rear side of the base (1), and a mounting frame (3) is installed on the front surface of the fixing plate (2), characterized in that: The mounting frame (3) is equipped with a ball screw (5) and a slider assembly (6) is mounted on the ball screw (5). A defect detection probe (7) is mounted below the slider assembly (6) via an electric telescopic rod. A rotating rod (8) is installed on the front side of the fixed plate (2) via a bearing seat, and a support plate (11) is installed above the rotating rod (8) via a connecting strip (10). A transmission shaft (12) passes through the support plate (11), and a platform (14) is installed at the upper end of the transmission shaft (12). The upper surface of the platform (14) is provided with grooves (15) on both the left and right sides. Threaded rods (17) are installed on both the left and right sides of the platform (14), and fixing plates (18) are installed on the opposite side of the threaded rods (17). The lower end of the drive shaft (12) is equipped with a fixed column (19), and the fixed column (19) has a limit groove (20) on both the left and right sides. A connecting frame (21) is installed below the support plate (11), and a limit column (22) passes through the connecting frame (21). A worm gear assembly (25) is installed on the rotating rod (8). An n-shaped frame (26) is installed on the upper surface of the base (1), and a worm gear assembly (27) is installed in the n-shaped frame (26) through a bearing seat.

2. The contact defect detection apparatus with a fixing effect according to claim 1, characterized by: The slider assembly (6) is slidably connected to the mounting frame (3), and the left side of the ball screw (5) is connected to the servo motor (4), which is fixed on the left side of the mounting frame (3).

3. The contact defect detection apparatus with a fixing effect according to claim 1, characterized by: Limit bearings (9) are installed on both the front and rear sides of the rotating rod (8), and the limit bearings (9) are fixed on the upper surface of the base (1).

4. The contact defect detection apparatus with a fixing effect according to claim 1, characterized by: Limiting components (13) are installed on the drive shaft (12). There are two limiting components (13), which abut against the upper and lower sides of the support plate (11) respectively.

5. The contact defect detection apparatus with a fixing effect according to claim 1, characterized by: Protective plates (16) are installed on the opposite side of the groove (15), and the threaded rod (17) is threadedly connected to the platform (14).

6. The contact defect detection apparatus with a fixing effect according to claim 1, characterized by: The center line of the limiting post (22) coincides with the center line of the limiting groove (20). A disc (23) is installed on the right end of the limiting post (22). The disc (23) is located on the right side of the connecting frame (21). The disc (23) and the connecting frame (21) are connected by a telescopic spring (24).

7. The contact defect detection apparatus with a fixing effect according to claim 3, characterized by: The worm gear assembly (27) and the worm wheel assembly (25) mesh with each other, and the worm wheel assembly (25) is fixedly connected to the rotating rod (8).

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