Chain detection equipment capable of automatically checking defects

Abstract

The utility model relates to chain detection equipment capable of automatically checking defects, which comprises a working table, a camera shooting assembly is arranged on the top surface of the working table, two supports which are opposite left and right are arranged on the top surface of the working table, rotating frames are arranged on the opposite sides of the two supports, and the rotating frames are rotatably connected with the supports through transverse first rotating shafts. First motors for driving the rotating frames to rotate are arranged on the opposite sides of the two supports, chain wheels are arranged on the opposite sides of the two rotating frames, the horizontal heights of the two chain wheels are the same, the chain wheels are rotationally connected with the rotating frames through vertical second rotating shafts, and a second motor for driving the corresponding chain wheel to rotate is arranged on one rotating frame. The vertical projection of a camera of the camera shooting assembly is located between the two chain wheels. According to the utility model, the first motor drives the rotating frame to rotate, so that the chain can be turned over, the other chain plate group corresponds to the camera to shoot, the chain does not need to be turned over manually, the use is more convenient, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of chain inspection technology, specifically to an automatic defect detection device for chains. Background Technology

[0002] A chain mainly consists of inner chain plates, outer chain plates, and pins. The inner and outer chain plates are connected in an alternating manner by pins to form chain plate assemblies. Each end of a pin is connected to a chain plate assembly to form a chain link. Multiple chain links are connected end to end to form a circular chain used for mechanical transmission.

[0003] Before packaging, chains need to be inspected for missing links or obvious defects. Traditionally, chain inspection is done visually, relying on observation to determine defects. However, this method is labor-intensive, time-consuming, and prone to visual fatigue, leading to missed inspections. Since defective links differ significantly from qualified links, automated inspection technology can be used. Existing inspection equipment uses a comparative recognition method for missing link detection. A camera scans the chain under inspection, and the resulting image is compared to an image of a complete chain to automatically determine if a link is missing. This method is highly efficient and accurate.

[0004] Existing testing equipment requires manual flipping and re-fixing of the chain after photographing one chain plate group before photographing another chain plate group. This is time-consuming, labor-intensive, inconvenient, and affects testing efficiency. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing an automatic chain inspection device that can automatically flip the chain during inspection, making it convenient to use and further improving inspection efficiency.

[0006] This utility model is achieved through the following technical solution: an automatic defect detection chain device, including a workbench, a camera assembly on the top surface of the workbench, two opposing supports on the top surface of the workbench, a rotating frame on one side of each of the two supports, the rotating frame being rotatably connected to the supports via a horizontal first rotating shaft, a first motor driving the rotating frame to rotate on one side of each of the two supports, a sprocket on one side of each of the two rotating frames, the two sprockets being at the same horizontal height, the sprockets being rotatably connected to the rotating frame via a vertical second rotating shaft, a second motor driving its corresponding sprocket to rotate on one of the rotating frames, and the vertical projection of the camera of the camera assembly located between the two sprockets.

[0007] This solution involves connecting the chain to be inspected to two sprockets, which tighten and expand the chain. A second motor drives one of the sprockets to rotate, causing the chain to rotate circumferentially. A camera captures images of the rotating chain. After one complete rotation, one chain plate group is fully recorded and compared. Then, a first motor drives a rotating plate to rotate, causing the chain to flip, allowing the camera to capture and record images of the other chain plate group for comparison. This eliminates the need for manual chain reversal, making it more convenient and increasing inspection efficiency.

[0008] As an optimization, one bracket is fixed to the worktable, while the other bracket is slidably connected to the worktable and slides left and right. This optimized design allows adjustment of the distance between the two brackets by sliding them left and right, thereby adjusting the distance between the two sprockets. This makes it suitable for tensioning chains of different lengths, making it more convenient and versatile. Furthermore, the sliding mechanism of the brackets facilitates chain installation.

[0009] As an optimization, a slider is fixedly connected to the bottom of the bracket that is slidably connected to the worktable. A sliding hole extending in the left-right direction is opened on the worktable, and a guide rod extending in the left-right direction is fixedly connected in the sliding hole. The slider is sleeved on the guide rod and slides along the sliding hole. In this optimized solution, the bracket achieves a sliding connection with the worktable by sliding the slider along the sliding hole, and the guide rod guides and limits the slider, making the bracket more stable when sliding.

[0010] As an optimization, the slider extends through the sliding hole to the bottom surface of the worktable, and a telescopic cylinder is fixedly installed on the bottom surface of the worktable. The telescopic end of the telescopic cylinder is fixedly connected to the slider. This optimized solution drives the slider to move by extending and retracting the telescopic cylinder, allowing the support to slide left and right, which is more labor-saving.

[0011] As an optimization, the sprocket is screwed to the second shaft. This optimization facilitates the disassembly and replacement of the sprocket, making it convenient to use.

[0012] The beneficial effects of this invention are as follows: Two sprockets pull and support the chain, thus opening it up to facilitate camera recording. A second motor drives the chain to rotate circumferentially, allowing the camera to completely record the chain's plate assemblies, resulting in more accurate comparisons. After one plate assembly is recorded, the first motor drives the rotating frame to rotate, causing the chain to flip, allowing the other plate assembly to be captured by the camera. This eliminates the need for manual chain flipping, making it more convenient and significantly improving testing efficiency.

[0013] During installation, the bracket is driven to slide to the left by the telescopic cylinder, making it easy to place the two sprockets in the chain. Then, the bracket is slid to the right to tighten the chain, facilitating chain installation. Furthermore, the bracket can slide left and right to easily adjust the spacing between the two sprockets, making it suitable for tightening chains of different lengths and offering greater versatility. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram showing the connection between the slider and the worktable;

[0017] Figure 4 This is a front view of the chain detection status;

[0018] Figure 5 Top view of the chain detection status;

[0019] As shown in the figure:

[0020] 1. Workbench; 2. Support frame; 21. First vertical plate; 22. First horizontal plate; 3. Rotating frame; 31. Second vertical plate; 32. Second horizontal plate; 4. First rotating shaft; 5. First motor; 6. Second rotating shaft; 7. Sprocket; 8. Second motor; 9. Camera assembly; 91. Camera; 92. Fixing frame; 93. Control box; 94. USB port; 95. Control switch; 96. Warning light; 10. Telescopic cylinder; 11. Slider; 12. Sliding hole; 13. Guide rod; 14. Chain. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0022] like Figures 1-5 As shown, an automatic defect detection chain detection device includes a workbench 1. The top surface of the workbench 1 is provided with two left-right opposing supports 2. One support 2 is fixedly connected to the workbench 1, and the other support 2 is slidably connected to the workbench 1 and slidably set in the left-right direction.

[0023] Specifically, a slider 11 is fixedly connected to the bottom of the bracket 2, which is slidably connected to the worktable 1. A sliding hole 12 extending in the left-right direction is provided on the worktable 1, and a guide rod 13 extending in the left-right direction is fixedly connected inside the sliding hole 12. The slider 11 is fitted onto the guide rod 13 and slides along the sliding hole 12, extending through the sliding hole 12 to the bottom surface of the worktable 1. A telescopic cylinder 10 is fixedly installed on the bottom surface of the worktable 1. In this embodiment, the telescopic cylinder 10 is an electric cylinder, positioned in the left-right direction, and its telescopic end is fixedly connected to the slider 11. This bracket 2 achieves a sliding connection with the worktable 1 by driving the slider 11 to slide left and right along the sliding hole 12 through the telescopic cylinder 10. The guide rod 13 guides and limits the slider 11, making the sliding of the bracket 2 more stable.

[0024] In this embodiment, two supports 2 are located at the front of the top surface of the workbench 1. Each support 2 includes a first horizontal plate 22 and a first vertical plate 21 fixed to the first horizontal plate 22. The first horizontal plate 22 of the support 2, which is fixed to the workbench 1, is bolted to the workbench 1 for easy assembly and disassembly. The bottom of the first horizontal plate 22 of the support 2, which is slidably connected to the workbench 1, is fixedly connected to the slider 11.

[0025] Each of the two supports 2 is provided with a rotating frame 3 on one side opposite to the other. The rotating frame 3 is rotatably connected to the support 2 via a first horizontal rotating shaft 4. Each of the two supports 2 is provided with a first motor 5 that drives the rotating frame 3 to rotate on the opposite side.

[0026] Specifically, the rotating frame 3 in this embodiment includes a second upright plate 31 and a second horizontal plate 32. One end of the first rotating shaft 4 is fixedly connected to one side of the second upright plate 31, and the other end is rotatably connected to the first upright plate 21 of the support 2. The second horizontal plate 32 is fixedly connected to the side of the second upright plate 31 away from the first rotating shaft 4. The first motor 5 is fixedly connected to the side of the first upright plate 21 away from the second upright plate 31, and the output end of the first motor 5 is fixedly connected to the first rotating shaft 4, thereby driving the rotation of the rotating frame 3. The two first motors 5 drive the two rotating frames 3 to rotate synchronously in the same direction.

[0027] Each of the two rotating frames 3 has a sprocket 7 on one side of the opposite side. The two sprockets 7 are at the same horizontal height. The sprockets 7 are rotatably connected to the rotating frame 3 through a vertical second rotating shaft 6. One of the rotating frames 3 is equipped with a second motor 8 that drives its corresponding sprocket 7 to rotate.

[0028] Specifically, in this embodiment, the lower end of the second rotating shaft 6 is rotatably connected to the second horizontal plate 32 of the rotating frame 3, and the sprocket 7 is screwed and fixed to the upper end of the second rotating shaft 6. The second motor 8 is fixedly connected to the bottom of the second horizontal plate 32 of one of the rotating frames 3, and the output end of the second motor 8 is fixedly connected to the corresponding second rotating shaft 6, thereby driving the rotation of the sprocket 7. During testing, the chain 14 is connected to the two sprockets 7. When one sprocket 7 rotates, it drives the other sprocket 7 to rotate, thereby causing the chain 14 to rotate circumferentially.

[0029] The top surface of the workbench 1 is equipped with a camera assembly 9, and the vertical projection of the camera 91 of the camera assembly 9 is located between two sprockets 7. The camera 91 corresponds to the chain 14 that is driven by the two sprockets 7. Specifically, the camera 91 is located directly above the chain 14. When the chain 14 rotates, the camera 91 captures and records images of the chain 14.

[0030] Specifically, the camera assembly 9 in this embodiment includes a control housing 93, a display (not shown in the figure), a mounting bracket 92, and the camera 91. The control housing 93 is fixed to the top surface of the workbench and is located at the rear of the top surface of the workbench. The mounting bracket 92 is fixed to the top surface of the control housing 93, the camera 91 is fixedly mounted on the mounting bracket 92, and the display is placed on the workbench 1.

[0031] The control box 93 is equipped with a central processing unit, which stores standard images of defect-free chains. The central processing unit is used to receive the images of the chain to be inspected transmitted from the camera 91, and compare the images of the chain to be inspected with the standard images to determine whether there are defects.

[0032] The control housing 93 is also equipped with a warning light 96, a USB port 94, and multiple control switches 95. The warning light, USB port, multiple control switches, display, telescopic cylinder, first motor, and second motor are all electrically connected to the central processing unit (CPU). The display shows the comparison images generated by the CPU. When the CPU detects a defect, it issues a warning light to alert personnel to take action. The USB port can be connected to other devices to transmit information. The multiple control switches can control the operation of the telescopic cylinder, first motor, and second motor respectively.

[0033] The control processing program of the central processing unit described above is existing technology and can be implemented by programmers in related fields, so it will not be elaborated on here.

[0034] Working principle: In operation, the telescopic cylinder 10 first drives the bracket 2 to slide, bringing the two brackets 2 closer together. This allows the chain 14 to be fitted over the two sprockets 7. Then, the brackets 2 are driven to slide in the opposite direction, moving them away from each other, thus tightening the chain 14 on the two sprockets 7. The second motor 8 drives the sprockets 7 to rotate, causing the chain 14 to rotate circumferentially. The camera 91 captures images of the rotating chain 14. After one complete rotation, one chain plate group is captured and recorded, and the data is transmitted to the central processor for comparison. Then, the first motor 5 drives the rotating frame 3 to rotate 180°, causing the chain 14 to rotate 180°, allowing the camera 91 to capture and record images of the other chain plate group for comparison. This method is more convenient to use and has higher detection efficiency.

[0035] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic defect detection chain inspection device, comprising a workbench (1), wherein a camera assembly (9) is provided on the top surface of the workbench, characterized in that: The top surface of the workbench is provided with two left-right opposing supports (2). Each of the two supports (2) is provided with a rotating frame (3) on one side of the opposite side. The rotating frame is rotatably connected to the support (2) through a horizontal first rotating shaft (4). Each of the two supports (2) is provided with a first motor (5) that drives the rotating frame (3) to rotate on the opposite side. Each of the two rotating frames (3) is provided with a sprocket (7) on one side of the opposite side. The two sprockets (7) are at the same horizontal height. The sprocket (7) is rotatably connected to the rotating frame (3) through a vertical second rotating shaft (6). One of the rotating frames (3) is provided with a second motor (8) that drives its corresponding sprocket (7) to rotate. The vertical projection of the camera (91) of the camera assembly is located between the two sprockets (7).

2. The automatic defect detection chain equipment according to claim 1, characterized in that: One of the brackets (2) is fixedly connected to the workbench (1), and the other bracket (2) is slidably connected to the workbench (1) and slidably set in the left and right direction.

3. The automatic defect detection chain equipment according to claim 2, characterized in that: The bottom of the bracket (2) which is slidably connected to the workbench (1) is fixedly connected to a slider (11). The workbench (1) has a sliding hole (12) extending in the left and right direction. A guide rod (13) extending in the left and right direction is fixedly connected in the sliding hole. The slider (11) is sleeved on the guide rod (13) and slides along the sliding hole (12).

4. The automatic defect detection chain equipment according to claim 3, characterized in that: The slider (11) extends through the sliding hole (12) to the bottom surface of the workbench, and a telescopic cylinder (10) is fixedly installed on the bottom surface of the workbench. The telescopic end of the telescopic cylinder (10) is fixedly connected to the slider (11).

5. The automatic defect detection chain device according to claim 1, characterized in that: The sprocket (7) is screwed to the second shaft (6).

Images