Contact defect detection device with fixing effect

Abstract

The invention discloses a contact defect detection device with a fixing effect, and relates to the technical field of contact detection, the contact defect detection device 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] The present invention relates to the technical field of contact detection, and specifically provides a contact defect detection device with a fixing effect. Background Art

[0002] The operating stability, reliability, and safety of electrical equipment. Whether it is a circuit breaker in a high-voltage power transmission system or a contactor or relay in a low-voltage power distribution device, the quality of the contacts plays a decisive role. A well-performing contact can ensure reliable circuit connection, reduce contact resistance, reduce heat generation and energy loss, thereby ensuring the efficient operation of electrical equipment. On the contrary, if there are defects in the contacts, such as surface oxidation, wear, deformation, cracks, etc., it may lead to serious problems such as poor contact, arc generation, and short circuit, causing electrical equipment failures and even fire accidents, bringing huge losses to production and life. To ensure the safe and stable operation of electrical equipment, it is essential to conduct strict defect detection on the contacts. Currently, there are various contact defect detection devices on the market, which adopt different detection principles, such as optical detection, electrical performance detection, ultrasonic detection, etc., to identify various defects that may exist in the contacts.

[0003] For example, the Chinese invention patent with the application number 202222569033.0 discloses a product defect detection device. When detecting the defects of the product, it is convenient to perform supplementary lighting operations in a timely manner when obtaining the image of the product detection surface, preventing the influence on the image acquisition effect in the case of insufficient light, increasing the clarity, and improving the accuracy of product defect detection. However, its device still has certain defects; When the detection surface of the product is an inclined plane, it is not convenient to adjust the angle of the product, so that the detection device cannot better detect the surface of the product. At the same time, it is not convenient to fix the product, further highlighting the shortcomings of traditional defect detection devices when facing complex product forms.

[0004] Therefore, we propose a contact defect detection device with a fixing effect to facilitate solving the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a contact defect detection device with a fixing effect to solve the problem that when the detection surface of the product is an inclined plane in the current market, it is not convenient to adjust the angle of the product, so that the detection device cannot better detect the surface of the product. At the same time, it is not convenient to fix the product, further highlighting the shortcomings of traditional defect detection devices when facing complex product forms.

[0006] To achieve the above object, the present invention provides the following technical solution: A contact defect detection device with a fixing effect, including a base and a loading platform. A fixing plate is installed at the rear side above the base, and an installation frame is installed on the front surface of the fixing plate. A ball screw is installed inside the installation frame, and a slider assembly is installed on the ball screw. A defect detection probe is installed below the slider 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 support plate is installed above the rotating rod through a connecting strip. A transmission shaft penetrates through the support plate, and a loading platform is installed at the upper end of the transmission shaft; Grooves are provided on both the left and right sides of the upper surface of the loading platform. Threaded rods are installed on both the left and right sides of the loading platform, and fixing pieces are installed on the opposite sides of the threaded rods; A fixing column is installed at the lower end of the transmission shaft, and limiting grooves are provided on both the left and right sides of the fixing column. A connecting frame is installed below the support plate, and a limiting post penetrates through the connecting frame. A worm gear assembly is installed on the rotating rod, and an n-shaped frame is installed on the upper surface of the base, and a worm gear assembly is installed inside the n-shaped frame through a bearing seat.

[0007] Preferably, the slider assembly is slidably connected to the installation frame. The left side of the ball screw is connected to a servo motor, and the servo motor is fixed on the left side of the installation frame.

[0008] With the above structural design, the position of the defect detection probe can be flexibly adjusted, enabling the detection probe to accurately approach the contact for detection, meeting the detection requirements of different contacts, and improving the accuracy and comprehensiveness of detection.

[0009] Preferably, limiting bearings are installed on both the front and rear sides of the rotating rod, and the limiting bearings are fixed on the upper surface of the base.

[0010] With the above structural design, it plays a role in supporting and limiting the rotating rod, ensuring the stability of the rotating rod during rotation, avoiding shaking or deviation, and providing guarantee for the smooth rotation of the loading platform.

[0011] Preferably, a limiting component is installed on the transmission shaft. There are two limiting components, and the limiting components are respectively abutted against the upper and lower sides of the support plate.

[0012] With the above structural design, the axial movement of the transmission shaft is effectively restricted. When the loading platform rotates, its stability is further enhanced, preventing the transmission shaft from axially moving, and improving the reliability of the detection device during operation.

[0013] Preferably, protective pieces are installed on the opposite sides of the grooves, and the threaded rods are threadedly connected to the loading platform.

[0014] With the above structural design, it can be flexibly fixed according to the contact size. The protective piece protects the contact from being damaged during the fixing process, improving the reliability and stability of the fixing and avoiding affecting the detection results due to improper fixing.

[0015] Preferably, the center line of the limit post coincides with the center line of the limit groove. A disc is installed at the right end of the limit 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.

[0016] With the above structural design, the interchange of the contact positions on the carrier table is realized. After detecting one side of the contact, it is not necessary to readjust the position of the defect detection probe to detect the other side of the contact, improving the detection efficiency and at the same time avoiding damage to the defect detection probe when disassembling the contact.

[0017] Preferably, the worm gear assembly and the worm wheel assembly are meshed with each other, and the worm wheel assembly is fixedly connected to the rotating rod.

[0018] With the above structural design, the angle of the carrier table can be conveniently adjusted to meet the detection requirements of contacts on different inclined planes, expanding the applicable range of the detection device and enhancing the comprehensiveness and flexibility of the detection.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The contact defect detection device with a fixing effect: 1. Good fixing effect: Through the cooperation of the threaded rod and the fixing piece, it can be flexibly adjusted according to the size of the contact, firmly fixing the contact on the carrier table, avoiding the displacement of the contact during the detection process, ensuring the accuracy of the detection results, and the protective piece further assists in positioning and protecting the contact, improving the reliability of the fixing; 2. Flexible angle adjustment: Using the transmission structure of the worm gear assembly, the worm wheel assembly, the rotating rod and the transmission shaft, the angle of the contact on the carrier table can be conveniently adjusted, suitable for detecting contacts on different inclined planes, expanding the applicable range of the detection device and improving the comprehensiveness of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall front view structural schematic diagram of the present invention; Figure 2 is the position structural schematic diagram of the mounting frame and the ball screw of the present invention; Figure 3 is the structural schematic diagram of the carrier table of the present invention; Figure 4 is the structural schematic diagram of the telescopic spring installation of the present invention; Figure 5 is the structural schematic diagram of the fixed post of the present invention; Figure 6 is of the present invention Figure 5 The enlarged structural schematic diagram at A in.

[0021] In the figure: 1. Base; 2. Fixed plate; 3. Installation frame; 4. Servo motor; 5. Ball screw; 6. Slide block assembly; 7. Defect detection probe; 8. Rotating rod; 9. Limiting bearing; 10. Connecting strip; 11. Support plate; 12. Transmission shaft; 13. Limiting component; 14. Carrying platform; 15. Groove; 16. Protective sheet; 17. Threaded rod; 18. Fixed sheet; 19. Fixed column; 20. Limiting groove; 21. Connecting frame; 22. Limiting column; 23. Disc; 24. Telescopic spring; 25. Worm gear assembly; 26. n-shaped frame; 27. Worm assembly. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-6 , the present invention provides a technical solution: a contact defect detection device with a fixing effect, including a base 1, a fixed plate 2, an installation frame 3, a servo motor 4, a ball screw 5, a slide block assembly 6, a defect detection probe 7, a rotating rod 8, a limiting bearing 9, a connecting strip 10, a support plate 11, a transmission shaft 12, a limiting component 13, a carrying platform 14, a groove 15, a protective sheet 16, a threaded rod 17, a fixed sheet 18, a fixed column 19, a limiting groove 20, a connecting frame 21, a limiting column 22, a disc 23, a telescopic spring 24, a worm gear assembly 25, an n-shaped frame 26 and a worm assembly 27. A fixed plate 2 is installed at the rear side above the base 1, and an installation frame 3 is installed on the front surface of the fixed plate 2. A ball screw 5 is installed inside the installation frame 3, and a slide block assembly 6 is installed on the ball screw 5. The slide block assembly 6 is slidably connected to the installation frame 3. The left side of the ball screw 5 is connected to the servo motor 4, and the servo motor 4 is fixed on the left side of the installation frame 3. When the servo motor 4 is started, the servo motor 4 drives the ball screw 5 to rotate, and the ball screw 5 drives the slide block assembly 6 to move left and right along the ball screw 5 inside the installation frame 3. The electric telescopic rod below the slide block 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, make the defect detection probe 7 close to the contact, and perform defect detection on the contact. During the detection process, the defect detection probe 7 transmits the detected signal to an external display device for analysis and display, so as to judge whether there is a defect in the contact. The defect detection probe 7 is installed below the slide block assembly 6 through an electric telescopic rod.

[0024] The front side of the fixed plate 2 is provided with a rotating rod 8 through a bearing seat. Limiting bearings 9 are installed on both the front and rear sides of the rotating rod 8. The limiting bearings 9 are fixed on the upper surface of the base 1. The limiting bearings 9 play a role in supporting and limiting the rotating rod 8, ensuring the stable rotation of the rotating rod 8. A support plate 11 is installed above the rotating rod 8 through a connecting bar 10. A transmission shaft 12 passes through the support plate 11. A limiting component 13 is installed on the transmission shaft 12. There are two limiting components 13. The limiting components 13 are respectively abutted against the upper and lower sides of the support plate 11. The limiting components 13 restrict the axial movement of the transmission shaft 12, making the transmission shaft 12 more stable when rotating. The upper end of the transmission shaft 12 is provided with a loading platform 14.

[0025] Grooves 15 are formed on both the left and right sides of the upper surface of the loading platform 14. Protective sheets 16 are installed on the opposite sides of the grooves 15. The threaded rod 17 is threadedly connected to the loading platform 14. With the contact detection position facing upwards, it is placed in the groove 15. When the threaded rod 17 is rotated, the threaded rod 17 will drive the fixed plate 18 to move horizontally when rotating. The fixed plate 18 moves towards the contact, realizing the fixation of the contact. The protective sheet 16 plays a role in protecting the contact. A protective pad is installed on the fixed plate 18. Threaded rods 17 are installed on both the left and right sides of the loading platform 14, and fixed plates 18 are installed on the opposite sides of the threaded rods 17; A fixing column 19 is installed at the lower end of the transmission shaft 12, and limiting grooves 20 are formed on both the left and right sides of the fixing column 19. A connecting frame 21 is installed below the support plate 11, and a limiting column 22 penetrates through the connecting frame 21. The center line of the limiting column 22 coincides with the center line of the limiting groove 20. A disc 23 is installed at the right end of the limiting column 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 contact is detected, the disc 23 is pulled to the right. The disc 23 drives the limiting column 22 to disengage from the limiting groove 20 on the right side of the fixing column 19. At this time, the telescopic spring 24 is in a stretched state. Then, the fixing column 19 is rotated by 180°. Then, the disc 23 is released. The disc 23 and the limiting column 22 move to the left under the action of the restoring force of the telescopic spring 24, so that the limiting column 22 abuts against the limiting groove 20 on the right side of the fixing column 19, thereby completing the limiting of the fixing column 19. When the fixing column 19 rotates, the fixing column 19 drives the upper load platform 14 to rotate by 180°, so that the positions of the contacts on the left and right sides of the upper surface of the load platform 14 are interchanged. The detected contact is located on the left side of the load platform 14, so that when the contact is disassembled, the upper defect detection probe 7 will not be damaged. At the same time, when detecting 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. 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 meshes with the worm gear assembly 25, and the worm gear assembly 25 is fixedly connected to the rotating rod 8. When the detection surface of the contact is an inclined surface, the worm gear assembly 27 is rotated. The worm gear assembly 25 drives 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, and further the load platform 14 installed at the upper end of the transmission shaft 12 rotates, realizing the adjustment of the contact angle to meet the detection requirements of different detection surfaces.

[0026] The defect detection probe 7 in this application can select a suitable detection device according to the actual detection situation, such as a camera detection device, an optical imaging probe, a resistance measurement probe, etc. The defect detection probe 7 is an existing technology in this field, and its internal structure and principle will not be elaborated here.

[0027] Working principle: When using the contact defect detection device with a fixing effect, first, place the contact detection position upward and put it in the groove 15. Rotate the threaded rod 17. When the threaded rod 17 rotates, it will drive the fixing piece 18 to move horizontally. The fixing piece 18 moves closer to the contact to achieve the fixation of the contact. Start the servo motor 4. 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 in the mounting frame 3. The electric telescopic rod under 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, make the defect detection probe 7 close to the contact, and perform defect detection on the contact. During the detection process, the defect detection probe 7 transmits the detected signal to an external display device for analysis and display, so as to determine whether there are defects in the contact.

[0028] After the contact on the right side is detected, pull the disc 23 to the right. The disc 23 drives the limit post 22 to disengage from the limit 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 by 180°. Then release the disc 23. The disc 23 and the limit post 22 move to the left under the action of the restoring force of the telescopic spring 24, so that the limit post 22 abuts against the limit groove 20 on the right side of the fixed post 19, thus completing the limitation of the fixed post 19. When the fixed post 19 rotates, the fixed post 19 drives the upper carrier table 14 to rotate by 180°, so that the positions of the contacts on the left and right sides of the upper surface of the carrier table 14 are interchanged. The detected contact is located on the left side of the carrier table 14, so that when disassembling the contact, it will not damage the upper defect detection probe 7. At the same time, when detecting the second contact, there is no need to adjust the position of the defect detection probe 7. When the contact detection surface is an inclined plane, rotate the worm assembly 27. The worm gear assembly 25 drives the rotating rod 8 to rotate around its axis. The rotating rod 8 drives the support plate 11 to rotate through the connecting bar 10. The transmission shaft 12 on the support plate 11 rotates accordingly, and then the carrier table 14 installed at the upper end of the transmission shaft 12 rotates, realizing the adjustment of the angle of the contact to meet the detection requirements of different detection surfaces, and thus completing a series of work. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A contact defect detection device with a fixing effect, comprising a base (1) and a carrier table (14). A fixing plate (2) is installed at the rear side above the base (1), and an installation frame (3) is installed on the front surface of the fixing plate (2). It is characterized in that: Inside the installation frame (3), a ball screw (5) is installed, and a slider assembly (6) is installed on the ball screw (5). Below the slider assembly (6), a defect detection probe (7) is installed through an electric telescopic rod; On the front side of the fixed plate (2), a rotating rod (8) is installed through a bearing seat. Above the rotating rod (8), a support plate (11) is installed through a connecting bar (10). A transmission shaft (12) passes through the support plate (11), and a loading platform (14) is installed at the upper end of the transmission shaft (12); On the upper surface of the loading platform (14), grooves (15) are formed on both the left and right sides. On both the left and right sides of the loading platform (14), threaded rods (17) are installed, and fixing pieces (18) are installed on the opposite sides of the threaded rods (17); At the lower end of the transmission shaft (12), a fixed column (19) is installed. On both the left and right sides of the fixed column (19), limit grooves (20) are formed. Below the support plate (11), a connecting frame (21) is installed. A limit post (22) passes through the connecting frame (21). A worm gear assembly (25) is installed on the rotating rod (8). On the upper surface of the base (1), an n-shaped frame (26) is installed, and a worm gear assembly (27) is installed through a bearing seat inside the n-shaped frame (26).

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

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

4. The contact defect detection device with a fixing effect according to claim 1, characterized in that: A limit assembly (13) is installed on the transmission shaft (12). There are two limit assemblies (13), and the limit assemblies (13) are respectively abutted against the upper and lower sides of the support plate (11).

5. The contact defect detection device with a fixing effect according to claim 1, characterized in that: On the opposite sides of the groove (15), protective pieces (16) are installed. The threaded rod (17) is threadedly connected to the loading platform (14).

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

7. The contact defect detection device with a fixing effect according to claim 3, characterized in that: The worm gear assembly (27) meshes with the worm wheel assembly (25), and the worm wheel assembly (25) is fixedly connected to the rotating rod (8).

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