Locking nut detection device

By designing a locking nut detection device that includes a mounting frame, a clamping block, and an electric push rod, the problem of inconvenient detection of nuts of different sizes is solved, achieving stable clamping and efficient detection, thus improving detection efficiency and reliability.

CN223623845UActive Publication Date: 2025-12-02SICHUAN SHENGJIELI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520264513.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2025-12-02
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

Existing locking nut testing devices cannot easily adapt to nuts of different sizes, and the testing effect is limited by unstable clamping, especially under dynamic loads where the self-locking reliability is reduced.

Method used

A detection device comprising a mounting frame, a clamping block, a rotating rod, and an electric push rod is designed. The position and size of the clamping block are adjusted by the electric push rod, and the torque of the nut is detected by a torque tester, thereby achieving stable clamping and detection of nuts of different sizes.

Benefits of technology

It achieves stable clamping and efficient inspection of nuts of different sizes, avoiding the tedious process of manual inspection and improving the reliability and efficiency of inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a locknut detection device, and specifically relates to the nut detection technology field, the locknut detection device comprises a mounting frame, clamping blocks and a rotating rod, the two sides of the interior of the mounting frame are provided with the clamping blocks, the center of the top of the mounting frame is provided with the rotating rod, and the outer wall of the bottom of the rotating rod is provided with a threaded column. Guide sheets are arranged on two sides of one end of the mounting frame; a conveying belt is arranged in a mounting frame used for supporting in a penetrating mode, a top plate is fixedly mounted at the top of the mounting frame, and the clamping blocks and the guide pieces are located at the top of the conveying belt. A containing groove is formed in the top of the side, close to the center of the mounting frame, of each clamping block for clamping, an electric extrusion push rod is mounted in the center of the interior of each clamping block in a penetrating mode, and electric adjusting push rods are mounted at the two ends of the sides, away from each other, of the two clamping blocks correspondingly. The nut clamping device has the advantages that nuts can be conveniently conveyed for detection, the positions of the nuts can be conveniently adjusted according to different nuts, and clamping and fixing are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of nut detection technology, specifically to a locking nut detection device. Background Technology

[0002] Locking threaded connectors or other pipe fittings. The working principle of a nut is self-locking based on the friction between the nut and the bolt. However, the reliability of this self-locking decreases under dynamic loads. In some critical situations, we take measures to prevent loosening and ensure the reliability of the nut's locking. Currently, most locking nuts can only be tested by sampling before leaving the factory.

[0003] However, in practical use, sampling inspection cannot accurately determine the actual processing condition of each nut, especially for some large nuts, which have high production costs. It is necessary to ensure that each product leaves the factory in good condition. Therefore, a device that facilitates nut inspection is needed. At the same time, when inspecting nuts of different sizes, the inspection device needs to be easily adjustable to adapt to different nut sizes, so as to clamp and fix the nuts to avoid slippage and affect the actual inspection results. Utility Model Content

[0004] The purpose of this invention is to provide a locking nut detection device that solves the existing problems of needing to conveniently detect nuts and needing to adjust the clamping and fixing for nuts of different sizes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a locking nut detection device, comprising a mounting frame, clamping blocks and a rotating rod, wherein clamping blocks are provided on both sides of the interior of the mounting frame, a rotating rod is provided at the top center of the mounting frame, a threaded post is installed on the bottom outer wall of the rotating rod, and guide plates are provided on both sides of one end of the mounting frame;

[0006] A conveyor belt runs through the interior of the mounting frame used for support. A top plate is fixedly installed on the top of the mounting frame, and the clamping block and guide plate are both located on top of the conveyor belt.

[0007] The clamping block used for clamping has a receiving groove on the top of one side near the center of the mounting frame. An electric extrusion push rod is installed through the center of the clamping block. Electric adjustment push rods are installed at both ends of the two clamping blocks on the side that are far apart from each other.

[0008] The rotating rod used for testing has a fixed plate rotatably connected to the top outer wall. A drive motor is installed on the top of the fixed plate, and an electric telescopic tube is fixedly connected to one side of the fixed plate.

[0009] Preferably, the two sides of the mounting frame are bent upwards and fixed to the two ends of the top plate, and the outer wall of the electric adjusting push rod is fixedly connected to the inside of the mounting frame, and the inner protruding end of the electric adjusting push rod is fixed to the side wall of the clamping block.

[0010] Preferably, one end of the fixed plate is rotatably connected to the rotating rod via a bearing, the outer wall of the electric telescopic tube is fixedly connected to the fixed plate through it, the bottom protruding end of the electric telescopic tube is fixedly connected to the top of the top plate, and the power output end of the drive motor is fixedly connected to the top of the rotating rod.

[0011] Preferably, the outer wall of the electric extrusion push rod penetrates the interior of the clamping block and is fixedly connected to the clamping block. The inner protruding end of the electric extrusion push rod corresponds to the center of the receiving groove. The inner wall of the receiving groove is arc-shaped, and the side wall of the receiving groove is provided with anti-slip texture. The side wall of the bottom of the receiving groove near the center of the mounting frame is inclined to the bottom.

[0012] Preferably, each of the mounting frames is equipped with an electric telescopic push rod on the side wall near the guide piece. The outer wall of the electric telescopic push rod is fixedly connected to the mounting frame, and the inner protruding end of the electric telescopic push rod is fixed to the guide piece. The ends of the two guide pieces away from the mounting frame are tilted to the side away from each other.

[0013] Preferably, the bottom outer wall of the rotating rod is sleeved with the outer wall of the threaded column, and a torque detector is fixedly connected to the bottom of the rotating rod. The rotating rod is fixedly connected to the threaded column through the torque detector.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. Activate the electric adjusting push rod, which moves the two clamping blocks towards the center. Simultaneously, the inclined bottom sidewall of the receiving groove pushes the nut upwards into the receiving groove, clamping the nut through the sidewall. At this point, the electric telescopic tube can be easily activated to retract, aligning the threaded post with the inside of the nut. Activating the drive motor rotates the threaded post into the nut, allowing it to engage with the internal threads. When there is significant resistance between the internal threads and the threaded post, a torque tester can be used to detect changes in torque, thus checking the smoothness of rotation without requiring manual inspection.

[0016] 2. Activate the electric telescopic push rod to adjust the distance between the two guide plates, making them correspond to the outer diameter of the nut. By bringing the two clamping blocks closer together, nuts of different sizes can be easily clamped and fixed for easy inspection, preventing the nut from rotating. At the same time, the electric compression push rod can be easily activated to further compress and fix the outer wall of the nut, preventing the nut from rotating. This adapts to the inspection of nuts of different sizes. When the two clamping blocks move away from each other, thus releasing the compression on the nut, the electric compression push rod can also be activated to push the nut away from the receiving groove, allowing it to fall onto the surface of the conveyor belt for easy transport. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the top plate of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Mounting frame; 101. Conveyor belt; 102. Top plate; 2. Clamping block; 201. Receiving groove; 202. Electric extrusion push rod; 203. Electric adjusting push rod; 3. Rotating rod; 301. Fixing plate; 302. Drive motor; 303. Electric telescopic tube; 4. Threaded column; 401. Torque tester; 5. Guide plate; 501. Electric telescopic push rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5The locking nut detection device shown includes a mounting frame 1, clamping blocks 2, and a rotating rod 3. Clamping blocks 2 are provided on both sides of the interior of the mounting frame 1. A rotating rod 3 is located at the top center of the mounting frame 1. Threaded posts 4 are installed on the bottom outer wall of the rotating rod 3. Guide plates 5 are provided on both sides of one end of the mounting frame 1. A conveyor belt 101 runs through the interior of the mounting frame 1 for support. A top plate 102 is fixedly installed on the top of the mounting frame 1. The clamping blocks 2 and guide plates 5 are both located on top of the conveyor belt 101. A receiving groove 201 is opened on the top side of the clamping block 2 near the center of the mounting frame 1. An electric extrusion push rod 202 runs through the center of the interior of the clamping block 2. Electric adjusting push rods 203 are installed at both ends of the two clamping blocks 2 on the sides away from each other. A fixed plate 301 is rotatably connected to the top outer wall of the rotating rod 3 for detection. A drive motor 302 is installed on the top of the fixed plate 301, and an electric telescopic tube 303 is fixedly connected to one side of the fixed plate 301.

[0027] like Figure 1 , Figure 4 As shown, the two sides of the mounting frame 1 are bent upwards and fixed to the two ends of the top plate 102. The outer wall of the electric adjusting push rod 203 is fixedly connected to the interior of the mounting frame 1. The inner protruding end of the electric adjusting push rod 203 is fixed to the side wall of the clamping block 2. The outer wall of the electric pressing push rod 202 is fixedly connected to the interior of the clamping block 2. The inner protruding end of the electric pressing push rod 202 corresponds to the center of the receiving groove 201. The inner wall of the receiving groove 201 is arc-shaped, and the side wall of the receiving groove 201 is opened. With anti-slip texture, the side wall of the bottom of the receiving groove 201 near the center of the mounting frame 1 is inclined to the bottom. When the electric extrusion push rod 202 is activated, the outer wall of the nut is further extruded and fixed to prevent the nut from rotating. This is suitable for the inspection of nuts of different sizes. At the same time, when the two clamping blocks 2 move away from each other and release the extrusion on the nut, the electric extrusion push rod 202 can also be activated to extend and push the nut away from the receiving groove 201, so that it falls onto the surface of the conveyor belt 101 for easy conveying.

[0028] like Figure 2 , Figure 5As shown, one end of the fixed plate 301 is rotatably connected to the rotating rod 3 via a bearing. The outer wall of the electric telescopic tube 303 is fixedly connected to the fixed plate 301 through it. The bottom protruding end of the electric telescopic tube 303 is fixedly connected to the top of the top plate 102. The power output end of the drive motor 302 is fixedly connected to the top of the rotating rod 3. The bottom outer wall of the rotating rod 3 is sleeved with the outer wall of the threaded column 4. A torque detector 401 is fixedly connected to the bottom of the rotating rod 3. The rotating rod 3 is fixedly connected to the threaded column 4 via the torque detector 401. When the electric telescopic tube 303 is activated to retract, the threaded column 4 corresponds to the inside of the nut. When the drive motor 302 is activated to rotate, the threaded column 4 rotates into the inside of the nut, thus engaging with the threads inside the nut. When there is significant resistance between the threads inside the nut and the threaded column 4, the torque detector 401 can detect the change in torque value to check whether the nut rotates smoothly, without the need for manual sequential testing.

[0029] like Figure 1 , Figure 3 As shown, an electric telescopic push rod 501 is installed on the side wall of the mounting frame 1 near the guide plate 5. The outer wall of the electric telescopic push rod 501 is fixedly connected to the mounting frame 1. The inner protruding end of the electric telescopic push rod 501 is fixed to the guide plate 5. The ends of the two guide plates 5 away from the mounting frame 1 are tilted to the opposite side. The tilted guide plates 5 push the guide plate to the middle position of the conveyor belt 101. At the same time, the electric telescopic push rod 501 can be easily activated to adjust the distance between the two guide plates 5 so that it corresponds to the outer diameter of the nut. Furthermore, the two clamping blocks 2 can be brought closer together to easily clamp and fix nuts of different sizes, facilitating inspection.

[0030] In use, the processed bolts can be easily placed on the top surface of the conveyor belt 101 near the guide plate 5. Then, the conveyor belt 101 is driven by an external device to move towards one end of the mounting frame 1, facilitating the delivery of the nut into the mounting frame 1. The electric adjusting push rod 203 is then activated, causing the two clamping blocks 2 to move towards the center. Simultaneously, the inclined bottom sidewall of the receiving groove 201 pushes the nut upwards into the receiving groove 201, where it is clamped by the sidewall. At this point, the electric telescopic tube 303 can be easily retracted, allowing the threaded post 4 and the inside of the nut to... Correspondingly, starting the drive motor 302 to rotate the threaded post 4 into the nut, thus engaging with the internal threads of the nut. When there is significant resistance between the internal threads of the nut and the threaded post 4, the torque tester 401 can detect the change in torque value to check whether the nut rotates smoothly, eliminating the need for manual sequential checks. After the check is completed, the rotating rod 3 can be rotated in the opposite direction to release the connection between the threaded post 4 and the nut, and the clamping blocks 2 can be moved to both sides to release the clamping of the nut, allowing it to easily fall back onto the surface of the conveyor belt 101 for easy transport to the next process. This method is more convenient and faster than manual sequential checks.

[0031] When a nut placed at one end of the conveyor belt 101 is misaligned during use, it can be easily pushed to the middle position of the conveyor belt 101 by the inclined guide plate 5 as it is moved by the conveyor belt 101. At the same time, the electric telescopic push rod 501 can be easily activated to adjust the distance between the two guide plates 5 so that it corresponds to the outer diameter of the nut. By bringing the two clamping blocks 2 closer together, nuts of different sizes can be easily clamped and fixed for easy inspection and to prevent the nut from rotating. The electric compression push rod 202 can also be easily activated to further compress and fix the outer wall of the nut to prevent it from rotating, which is suitable for the inspection of nuts of different sizes. When the two clamping blocks 2 move away from each other and release the compression on the nut, the electric compression push rod 202 can also be activated to extend and push the nut away from the receiving groove 201, so that it falls onto the surface of the conveyor belt 101 for easy transport.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A locking nut detection device, comprising a mounting frame (1), a clamping block (2), and a rotating rod (3), characterized in that: Clamping blocks (2) are provided on both sides of the interior of the mounting frame (1), a rotating rod (3) is provided at the top center of the mounting frame (1), a threaded column (4) is installed on the bottom outer wall of the rotating rod (3), and guide plates (5) are provided on both sides of one end of the mounting frame (1). The mounting frame (1) used for support has a conveyor belt (101) running through it. A top plate (102) is fixedly installed on the top of the mounting frame (1). The clamping block (2) and the guide plate (5) are both located on the top of the conveyor belt (101). The clamping block (2) used for clamping has a receiving groove (201) on the top side of one side near the center of the mounting frame (1). An electric extrusion push rod (202) is installed through the center of the inside of the clamping block (2). Electric adjustment push rods (203) are installed at both ends of the two clamping blocks (2) on the side away from each other. The rotating rod (3) used for testing has a fixed plate (301) rotatably connected to the top outer wall. A drive motor (302) is installed on the top of the fixed plate (301), and an electric telescopic tube (303) is fixedly connected to one side of the fixed plate (301).

2. The locking nut detection device according to claim 1, characterized in that: The two sides of the mounting frame (1) are bent upwards and fixed to the two ends of the top plate (102). The outer wall of the electric adjustment push rod (203) is fixedly connected to the inside of the mounting frame (1). The inner protruding end of the electric adjustment push rod (203) is fixed to the side wall of the clamping block (2).

3. The locking nut detection device according to claim 1, characterized in that: One end of the fixed plate (301) is rotatably connected to the rotating rod (3) via a bearing. The outer wall of the electric telescopic tube (303) is fixedly connected to the fixed plate (301) through it. The bottom protruding end of the electric telescopic tube (303) is fixedly connected to the top of the top plate (102). The power output end of the drive motor (302) is fixedly connected to the top of the rotating rod (3).

4. The locking nut detection device according to claim 1, characterized in that: The outer wall of the electric extrusion push rod (202) penetrates the interior of the clamping block (2) and is fixedly connected to the clamping block (2). The inner protruding end of the electric extrusion push rod (202) corresponds to the center of the receiving groove (201). The inner wall of the receiving groove (201) is arc-shaped, and the side wall of the receiving groove (201) is provided with anti-slip texture. The side wall of the bottom of the receiving groove (201) near the center of the mounting frame (1) is inclined to the bottom.

5. A locking nut detection device according to claim 1, characterized in that: Electric telescopic push rods (501) are installed on the side wall of the mounting frame (1) near the guide plate (5). The outer wall of the electric telescopic push rod (501) is fixedly connected to the mounting frame (1). The inner protruding end of the electric telescopic push rod (501) is fixed to the guide plate (5). The ends of the two guide plates (5) away from the mounting frame (1) are tilted to the side away from each other.

6. The locking nut detection device according to claim 1, characterized in that: The bottom outer wall of the rotating rod (3) is sleeved with the outer wall of the threaded column (4). A torque tester (401) is fixedly connected to the bottom of the rotating rod (3). The rotating rod (3) is fixedly connected to the threaded column (4) through the torque tester (401).