Screw locking mechanism with screw detection function
By introducing a screw detection function into the screw fastening mechanism, and using a detection camera to capture images of the screws to determine their conformity, the problem of screw failure caused by unqualified screws is solved, thereby improving fastening quality and product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ROCKS INTELLIGENT TECH CO LTD
- Filing Date
- 2025-02-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing screw-locking mechanisms suffer from problems such as screw failure or damage to items due to substandard screws during the screw-locking process, affecting the product yield.
Design a screw fastening mechanism with screw detection function, including a screw fastening module, a drive module and a detection module. The mechanism uses a detection camera to capture images of the screws to determine whether the screws are qualified, ensuring that only qualified screws are fastened to the items.
This technology enables screws to be inspected before fastening, preventing the use of substandard screws and improving fastening quality and product yield.
Smart Images

Figure CN224143932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw-locking technology, and in particular to a screw-locking mechanism with screw detection function. Background Technology
[0002] Currently, most visual applications of screw-locking mechanisms utilize vision to obtain the position and height of the screw holes, allowing the screw-locking mechanism to accurately move to the corresponding position for lifting and lowering, thus achieving the effect of intelligent screw-locking.
[0003] However, one of the keys to successful screw fastening is whether the screw is qualified. In actual production, there are defects such as screws that are not of the required length or have bends. If such screws are not available for fastening, it will inevitably lead to fastening failure or damage to the product, thus affecting the yield of the product. Summary of the Invention
[0004] This invention addresses the problems of existing technologies by providing a screw-locking mechanism with screw detection function, which can detect screw defects in a timely manner before screwing.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] This utility model provides a screw-locking mechanism with screw detection function, including a screw-locking module, a drive module, and a detection module. The screw-locking module is used to pick up screws and fasten screws to external objects, the drive module is used to drive the screw-locking module to move, and the detection module is used to capture images of the screws picked up by the screw-locking module.
[0007] Furthermore, the detection module includes a detection camera with a lens facing directly below the screw-locking module.
[0008] Furthermore, the detection module also includes a reflector, with the detection camera and the reflector located on opposite sides of the screw-locking module.
[0009] Furthermore, it also includes a mounting bracket, on which the drive module and detection module are mounted, and the screw-locking module is movably mounted on the mounting bracket.
[0010] Furthermore, the fixing frame is equipped with a guide rail, and the screw-locking module is equipped with a slider, which is slidably mounted on the guide rail.
[0011] Furthermore, the screw-locking module includes a mounting base, an electric screwdriver, a suction nozzle, and a vision component, all mounted on the mounting base. A drive module is connected to the mounting base, and a detection module is mounted on the mounting base. The suction nozzle is located directly below the electric screwdriver, and the vision component is used to detect the screw hole position of external objects. The vision component is signal-connected to the drive module.
[0012] Furthermore, the vision component includes a vision camera and an aperture, both mounted on the mounting base. The aperture is located directly below the vision camera and between the nozzle and the reflector.
[0013] Furthermore, the fixing frame is provided with a limit block, the screw locking module is provided with a limit component, and the limit rod is used to abut against the limit component.
[0014] The beneficial effects of this utility model are as follows: This utility model realizes the detection of screws by setting up a detection module. That is, the screw image captured by the detection module is used to determine whether the screw is qualified. In this way, when a defective screw is found, it can be removed in time to avoid using defective screws to fasten items. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the present invention.
[0016] Figure 2 This is a schematic diagram from another perspective of the present invention.
[0017] Reference numerals: 1—Screw tightening module, 2—Drive module, 3—Detection module, 4—Fixed bracket, 5—Screw, 10—Slider, 11—Mounting base, 12—Electric screwdriver, 13—Nozzle, 14—Vision component, 15—Vision camera, 16—Aperture, 17—Limiting component, 31—Detection camera, 32—Reflector, 33—Lens, 41—Guide rail, 42—Limiting block. Detailed Implementation
[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.
[0019] like Figure 1 and Figure 2 As shown, the present invention provides a screw-locking mechanism with screw detection function, including a screw-locking module 1, a drive module 2 and a detection module 3. The screw-locking module 1 is used to pick up screws 5 and lock the screws 5 to external objects. The drive module 2 is used to drive the screw-locking module 1 to move. The detection module 3 is used to capture images of the screws 5 picked up by the screw-locking module 1.
[0020] Specifically, the drive module 2 described in this embodiment can at least drive the screw-locking module 1 to rise and fall, while the translation of this invention is achieved by an external drive mechanism. The drive module 2 is preferably composed of a motor and a lead screw, ensuring that the accuracy of the rising and falling of the screw-locking module 1 meets the requirements.
[0021] During operation, the screw-locking module 1 of this invention moves to directly above the screw container. Then, under the control of the drive module 2, the screw-locking module 1 descends into the screw container to pick up the screw 5. The drive module 2 then drives the screw-locking module 1 to rise and reset, ensuring that the screw picked up by the screw-locking module 1 is within the shooting range of the detection module 3. The detection module 3 captures an image of the screw 5 and transmits it to an external server. The server compares the length, shape, and tilt of the screw 5 to determine whether the screw 5 is qualified. Qualified screws 5 are then fastened to external objects by this invention, while unqualified screws 5 are transferred to a specific location for centralized processing.
[0022] Because this invention inspects the screws 5 before fastening them, it avoids fastening substandard screws 5 onto items, thus ensuring the quality of fastening.
[0023] In this embodiment, the detection module 3 includes a detection camera 31 with a lens 33 facing directly below the screw-locking module 1. The detection camera 31 directly uses its lens 33 to aim at the position directly below the screw-locking module 1 (i.e., the position of the screw 5 after it is picked up). The position of the detection camera 31 relative to the drive module 2 can remain unchanged to ensure that the screw 5 can be photographed every time it is picked up.
[0024] Specifically, the detection module 3 also includes a reflector 32, with the detection camera 31 and the reflector 32 located on opposite sides of the screw-locking module 1. The reflector 32 acts as a light-focusing element, allowing the lens 33 to capture images of the screw 5 under better brightness, thereby ensuring the detection effect of the screw 5.
[0025] In this embodiment, the present invention also includes a fixing frame 4, on which the drive module 2 and the detection module 3 are both mounted, and the screw-locking module 1 is movably disposed. The fixing frame 4 is used to assemble onto an external drive mechanism, and the present invention is translated by being driven by the external drive mechanism.
[0026] Specifically, the fixing frame 4 is equipped with a guide rail 41, and the screw-locking module 1 is provided with a slider 10. The slider 10 is slidably disposed on the guide rail 41, which ensures that the lifting and lowering of the screw-locking module 1 is carried out in the vertical direction, and ensures the accuracy of the position of picking up the screw 5 and locking the screw 5.
[0027] In this embodiment, the screw-locking module 1 includes a mounting base 11, an electric screwdriver 12, a suction nozzle 13, and a vision component 14, all mounted on the mounting base 11. The drive module 2 is connected to the mounting base 11, and the detection module 3 is mounted on the mounting base 11. The suction nozzle 13 is located directly below the electric screwdriver 12, and the vision component 14 is used to detect the screw hole position of external objects. The vision component 14 is signal-connected to the drive module 2.
[0028] In this invention, the screw 5 is picked up by the suction nozzle 13, the position and height of the screw hole of the external object are obtained by the vision component 14, and then the screw 5 is locked by the electric screwdriver 12 in cooperation with the suction nozzle 13.
[0029] Specifically, the vision component 14 includes a vision camera 15 and an aperture 16, both mounted on the mounting base 11. The aperture 16 is located directly below the vision camera 15 and between the suction nozzle 13 and the reflector 32. That is, the reflector 32 can further concentrate the light from the aperture 16 to improve the clarity of the image captured by the vision camera 15; and the reflector 32 can also concentrate the light that diffuses outward from the aperture 16, allowing the light from the aperture 16 to provide some supplementary lighting for the image captured by the detection camera 31.
[0030] In this embodiment, the fixing frame 4 is provided with a limiting block 42, and the screw-locking module 1 is provided with a limiting member 17. The limiting rod is used to abut against the limiting member 17. By cooperating with the limiting block 42 and the limiting member 17, the screw-locking module 1 is prevented from rising too much, thereby ensuring that the screw 5 is within the range captured by the detection module 3 when the limiting block 42 contacts the limiting member 17.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A screw-locking mechanism with screw detection function, comprising a screw-locking module and a drive module, wherein the screw-locking module is used to pick up screws and fasten screws to external objects, and the drive module is used to drive the screw-locking module to move, characterized in that: It also includes a detection module, which is used to capture images of screws picked up by the screw-locking module; The detection module includes a detection camera with a lens facing directly below the screw-locking module. The screw-locking module includes a mounting base, an electric screwdriver, a suction nozzle, and a vision component, all mounted on the mounting base. A drive module is connected to the mounting base, and a detection module is mounted on the mounting base. The suction nozzle is located directly below the electric screwdriver, and the vision component is used to detect the position of the screw hole of an external object. The vision component is signal-connected to the drive module.
2. The screw locking mechanism having a screw detection function according to claim 1, characterized in that: The detection module also includes a reflector, with the detection camera and the reflector located on opposite sides of the screw-locking module.
3. The screw locking mechanism having a screw detection function according to claim 2, characterized in that: It also includes a mounting bracket, on which the drive module and detection module are mounted, and the screw-locking module is movably mounted on the mounting bracket.
4. The screw locking mechanism having a screw detection function according to claim 3, characterized in that: The fixing frame is equipped with a guide rail, and the screw-locking module is equipped with a slider, which is slidably mounted on the guide rail.
5. The screw locking mechanism having a screw detection function according to claim 1, characterized in that: The vision component includes a vision camera and an aperture, both mounted on the mounting base. The aperture is located directly below the vision camera and between the nozzle and the reflector.
6. The screw locking mechanism having a screw detection function according to claim 3, characterized in that: The fixing frame is provided with a limit block, the screw locking module is provided with a limit component, and the limit rod is used to abut against the limit component.