A device for improving the assembly accuracy of parts by means of a vision device

By using a vision device to detect the position and orientation of components and semi-finished products in real time and dynamically adjust the assembly process, the problem of unstable assembly accuracy in existing devices is solved, achieving efficient and automated assembly and improving production efficiency and accuracy.

CN224295801UActive Publication Date: 2026-05-29GUANGZHOU DENSO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU DENSO
Filing Date
2025-04-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing semi-automatic assembly equipment lacks real-time pose detection and compensation capabilities, resulting in unstable assembly accuracy, initial positioning deviations, and cumulative errors during the assembly process, leading to an increase in defective products and low production efficiency.

Method used

A vision device is used for real-time pose detection. The spatial pose of the parts to be assembled is obtained by the first vision detection component, and the actual pose of the semi-finished product is detected by the second vision detection component. The relative positional deviation between the two is calculated, and the clamping path and assembly action are dynamically adjusted by the handling component to eliminate errors and realize automated assembly.

Benefits of technology

It improves assembly precision, reduces defective products, saves manpower, reduces reliance on operator experience, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224295801U_ABST
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Abstract

The utility model discloses a device that improves part assembly precision through visual device, including work table and being located on the work table's carrying assembly, component feeding assembly, semi -finished product clamping assembly, first visual detection component and second visual detection component. First visual detection component is used for real -time acquisition to be assembled component's space pose, and second visual detection component is used for synchronous detection semi -finished product's actual pose, and through comparison calculation and can or's two relative position deviation, and carrying assembly is according to the feedback of visual detection component to dynamically adjust clamping path and assembly action, thereby eliminating the error of existing mechanical positioning in the assembly process, improving assembly precision, reducing the defective product caused by misplacement, adopting carrying assembly to realize automatic carrying assembly to replace manual operation, saves manpower, and reduces the dependence on operator's experience, improves processing precision and processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of assembly equipment technology, and in particular to a device that improves the assembly accuracy of parts through a vision device. Background Technology

[0002] In the field of component assembly, the requirements for precision and efficiency are increasingly stringent. Traditional assembly methods rely primarily on manual labor, which is not only susceptible to instability due to operator experience but also suffers from high workload and low production efficiency. To improve processing efficiency, the industry is gradually adopting semi-automatic equipment to replace manual operation. However, existing semi-automatic equipment typically uses mechanical positioning, lacking real-time position detection and compensation capabilities. It cannot dynamically correct errors during handling and assembly, making it prone to decreased assembly precision due to initial positioning deviations or accumulated errors during assembly, leading to an increase in defective products and reduced processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a device that improves the assembly accuracy of parts through a vision device, so as to solve one or more technical problems existing in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An apparatus for improving component assembly accuracy using a vision device includes a worktable and a transport component, a component loading component, a semi-finished product clamping component, a first vision inspection component, and a second vision inspection component disposed on the worktable. The component loading component and the semi-finished product clamping component are both located within the clamping range of the transport component. The first vision inspection component is located on one side of the component loading component, and the second vision inspection component is located on one side of the semi-finished product clamping component. The semi-finished product clamping component is used to clamp semi-finished products to be assembled. The component loading component is used to provide components to be assembled. The transport component is used to clamp the components to be assembled and move them to the semi-finished product clamping component to complete the assembly process between the components and the semi-finished product. The first vision inspection component is used to detect the spatial orientation of the components to be assembled clamped on the component loading component, and the second vision inspection component is used to detect the spatial orientation of the semi-finished products to be assembled clamped on the semi-finished product clamping component.

[0006] Preferably, the first visual detection component includes a first visual camera and a first distance adjustment module. The first distance adjustment module is arranged parallel to one side of the component feeding component, and the first visual camera is located at the movable end of the first distance adjustment module.

[0007] Preferably, the first visual detection component further includes an ejection module, wherein the first distance adjustment module is disposed at the movable end of the ejection module, and the ejection module is used to drive the first visual camera to move longitudinally above the component loading component.

[0008] Preferably, the second vision detection component includes a second vision camera and a second distance adjustment module, the second distance adjustment module is disposed between the conveying component and the semi-finished product clamping component, and the second vision camera is disposed at the movable end of the second distance adjustment module.

[0009] Preferably, the handling assembly includes a handling robotic arm and a clamping structure. The clamping structure includes a mounting base, a first finger cylinder, and a second finger cylinder. The mounting base is connected to the end of the handling robotic arm. The first finger cylinder is located on the front side of the mounting base, and the second finger cylinder is located on the upper side of the mounting base.

[0010] Preferably, the component feeding assembly includes a positioning module, a movable base plate, a clamping module, a clamping limiting plate, and a fixed limiting plate. The positioning module is disposed on the worktable, the movable base plate is disposed at the movable end of the positioning module, the clamping module and the fixed limiting plate are disposed on the movable base plate front and rear, the clamping limiting plate is disposed at the movable end of the clamping module, and positioning slots are provided on both the clamping limiting plate and the fixed limiting plate.

[0011] Preferably, it also includes a semi-finished product conveyor belt, which is disposed on one side of the semi-finished product clamping assembly.

[0012] Preferably, the semi-finished product clamping assembly includes multiple positioning cylinders, which are distributed on both sides of the semi-finished product conveyor belt.

[0013] The beneficial effects of this utility model are as follows: the first vision detection component is used to acquire the spatial pose of the parts to be assembled in real time, and the second vision detection component is used to simultaneously detect the actual pose of the semi-finished product. By comparing and calculating the relative positional deviation between the two, the handling component dynamically adjusts the clamping path and assembly action based on the feedback from the vision detection component. This eliminates the assembly process error present in existing mechanical positioning, improves assembly accuracy, and reduces defective products caused by misalignment. The use of the handling component realizes automated handling and assembly to replace manual operation, saving manpower and reducing reliance on operator experience, thereby improving processing accuracy and processing efficiency. Attached Figure Description

[0014] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0015] Figure 1This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the overall structural layout of one embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a transport component according to one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the component feeding assembly according to one embodiment of the present invention.

[0019] The components include: workbench 1, handling assembly 2, component loading assembly 3, semi-finished product clamping assembly 4, first vision inspection assembly 5, second vision inspection assembly 6, semi-finished product to be assembled 81, component to be assembled 82, first vision camera 51, first distance adjustment module 52, ejection module 53, second vision camera 61, second distance adjustment module 62, handling robotic arm 21, clamping structure 22, first finger cylinder 23, second finger cylinder 24, mounting base 25, positioning module 31, movable base plate 32, clamping module 33, clamping limit plate 34, fixed limit plate 35, positioning slot 341, semi-finished product conveyor belt 7, and positioning cylinder 41. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] This embodiment provides a device for improving component assembly accuracy through a vision device, as shown in the attached diagram. Figure 1 and 2 The system includes a workbench 1 and a conveying assembly 2, a component loading assembly 3, a semi-finished product clamping assembly 4, a first vision inspection assembly 5, and a second vision inspection assembly 6, all mounted on the workbench 1. The component loading assembly 3 and the semi-finished product clamping assembly 4 are both located within the clamping range of the conveying assembly 2. The first vision inspection assembly 5 is located on one side of the component loading assembly 3, and the second vision inspection assembly 6 is located on one side of the semi-finished product clamping assembly 4. The semi-finished product clamping assembly 4 is used to clamp the semi-finished product 81 to be assembled. The component loading assembly 3 is used to provide the component 82 to be assembled. The conveying assembly 2 is used to clamp the component 82 to be assembled and move the component 82 to be assembled to the semi-finished product clamping assembly 4 to complete the assembly of the component 82 and the semi-finished product 81. The first vision inspection assembly 5 is used to detect the spatial orientation of the component 82 to be assembled clamped on the component loading assembly 3, and the second vision inspection assembly 6 is used to detect the spatial orientation of the semi-finished product 81 to be assembled clamped on the semi-finished product clamping assembly 4.

[0022] The first vision inspection component 5 is used to acquire the spatial pose of the part 82 to be assembled in real time, and the second vision inspection component 6 is used to simultaneously detect the actual pose of the semi-finished product 81. By comparing and calculating the relative positional deviation between the two, the handling component 2 dynamically adjusts the clamping path and assembly action based on the feedback from the vision inspection component. This eliminates the errors in the assembly process that exist in existing mechanical positioning, improves assembly accuracy, and reduces defective products caused by misalignment. The use of the handling component 2 realizes automated handling and assembly to replace manual operation, saves manpower, reduces reliance on operator experience, and improves processing accuracy and efficiency.

[0023] Preferably, the first vision detection component 5 includes a first vision camera 51 and a first distance adjustment module 52. The first distance adjustment module 52 is arranged parallel to one side of the component loading component 3, and the first vision camera 51 is located at the movable end of the first distance adjustment module 52.

[0024] Since the component 82 to be assembled is located on the component loading assembly 3, which is used to move the component 82 to a position that is easy for the handling assembly 2 to grasp, the position of the first vision camera 51 can be adjusted by setting the first distance adjustment module 52 to ensure that the spatial pose of the component 82 to be assembled can be obtained, thus avoiding the problem of insufficient field of view.

[0025] Preferably, the first vision detection component 5 further includes an ejection module 53, and a first distance adjustment module 52 is disposed at the movable end of the ejection module 53. The ejection module 53 is used to drive the first vision camera 51 to move longitudinally above the component loading component 3. By setting the ejection module 53, after the first vision camera 51 completes the detection of the spatial pose of the component 82 to be assembled, the ejection module 53 can drive the first vision camera 51 away from directly above the component loading component 3, avoiding interference with the movement of the transport component 2.

[0026] Preferably, the second vision detection component 6 includes a second vision camera 61 and a second distance adjustment module 62. The second distance adjustment module 62 is located between the transport component 2 and the semi-finished product clamping component 4, and the second vision camera 61 is located at the movable end of the second distance adjustment module 62. By setting the second distance adjustment module 62, the distance between the second vision camera 61 and the semi-finished product 81 to be assembled is dynamically adjusted to ensure that the semi-finished product 81 is always within the optimal imaging range, thereby improving the accuracy of recognition. In addition, after the second vision camera 61 completes the detection of the spatial pose of the semi-finished product 81 to be assembled, the second distance adjustment module 62 can move the second vision camera 61 away from the semi-finished product clamping component 4 to avoid interference with the movement of the transport component 2.

[0027] Preferred options are listed in the appendix. Figure 3The handling assembly 2 includes a handling robotic arm 21 and a clamping structure 22. The clamping structure 22 includes a mounting base 25, a first finger cylinder 23, and a second finger cylinder 24. The mounting base 25 is connected to the end of the handling robotic arm 21. The first finger cylinder 23 is located on the front side of the mounting base 25, and the second finger cylinder 24 is located on the upper side of the mounting base 25. By setting the first finger cylinder 23 on the handling robotic arm 21, the component 82 to be assembled is clamped. By setting the second finger cylinder 24, the handling assembly 2 can simultaneously clamp other components to be processed, saving the time of the robotic arm moving during multiple clamping operations and improving processing efficiency.

[0028] Preferred options are listed in the appendix. Figure 4 The component loading assembly 3 includes a positioning module 31, a movable base plate 32, a clamping module 33, a clamping limiting plate 34, and a fixed limiting plate 35. The positioning module 31 is mounted on the worktable 1. The movable base plate 32 is located at the movable end of the positioning module 31. The clamping module 33 and the fixed limiting plate 35 are positioned on the movable base plate 32, one in front of the other. The clamping limiting plate 34 is located at the movable end of the clamping module 33. Both the clamping limiting plate 34 and the fixed limiting plate 35 have positioning slots 341. By setting up the positioning module 31, the clamping module 33 is moved from a position away from the transport assembly 2 to a position close to the transport assembly 2, facilitating the clamping of the transport assembly 2, reducing the range of motion of the robotic arm, and improving processing efficiency. By providing positioning slots 341 on both the clamping limiting plate 34 and the fixed limiting plate 35, and matching the two ends of the component 82 to be assembled, the clamping module 33 can adjust the distance between the clamping limiting plate 34 and the fixed limiting plate 35 to achieve the clamping of the component 82 to be assembled. The clamping module 33 can also be used to clamp components of various specifications.

[0029] Preferably, it also includes a semi-finished product conveyor belt 7, which is located on one side of the semi-finished product clamping assembly 4. By setting the semi-finished product conveyor belt 7, it is used to transport the semi-finished product 81 to be assembled onto the semi-finished product clamping assembly 4, and to transport the semi-finished product 81 that is about to be assembled to the outside of the workbench 1.

[0030] Preferably, the semi-finished product clamping assembly 4 includes multiple positioning cylinders 41, which are distributed on both sides of the semi-finished product conveyor belt 7. By arranging multiple positioning cylinders 41 on both sides of the semi-finished product conveyor belt 7, the semi-finished product 81 to be assembled is clamped, and the semi-finished product 81 is positioned during assembly and processing.

[0031] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A device for improving the assembly accuracy of components through a vision system, characterized in that, The system includes a workbench and a transport component, a component loading component, a semi-finished product clamping component, a first vision inspection component, and a second vision inspection component mounted on the workbench. Both the component loading component and the semi-finished product clamping component are located within the clamping range of the transport component. The first vision inspection component is located on one side of the component loading component, and the second vision inspection component is located on one side of the semi-finished product clamping component. The semi-finished product clamping component is used to clamp semi-finished products to be assembled. The component loading component is used to provide components to be assembled. The transport component is used to clamp the components to be assembled and move them to the semi-finished product clamping component to complete the assembly process. The first vision inspection component is used to detect the spatial orientation of the components to be assembled clamped on the component loading component, and the second vision inspection component is used to detect the spatial orientation of the semi-finished products to be assembled clamped on the semi-finished product clamping component.

2. The device for improving component assembly accuracy through a vision device according to claim 1, characterized in that, The first visual inspection component includes a first visual camera and a first distance adjustment module. The first distance adjustment module is arranged parallel to one side of the component loading component, and the first visual camera is located at the movable end of the first distance adjustment module.

3. The device for improving component assembly accuracy through a vision device according to claim 2, characterized in that, The first vision detection component further includes an ejection module, and the first distance adjustment module is located at the movable end of the ejection module. The ejection module is used to drive the first vision camera to move longitudinally above the component loading component.

4. The device for improving component assembly accuracy through a vision device according to claim 1, characterized in that, The second vision detection component includes a second vision camera and a second distance adjustment module. The second distance adjustment module is located between the conveying component and the semi-finished product clamping component, and the second vision camera is located at the movable end of the second distance adjustment module.

5. The device for improving component assembly accuracy through a vision device according to claim 1, characterized in that, The handling assembly includes a handling robotic arm and a clamping structure. The clamping structure includes a mounting base, a first finger cylinder, and a second finger cylinder. The mounting base is connected to the end of the handling robotic arm. The first finger cylinder is located on the front side of the mounting base, and the second finger cylinder is located on the upper side of the mounting base.

6. The device for improving component assembly accuracy through a vision device according to claim 1, characterized in that, The component loading assembly includes a positioning module, a movable base plate, a clamping module, a clamping limit plate, and a fixed limit plate. The positioning module is disposed on the worktable, the movable base plate is disposed at the movable end of the positioning module, the clamping module and the fixed limit plate are disposed on the movable base plate front and rear, and the clamping limit plate is disposed at the movable end of the clamping module. Positioning slots are provided on both the clamping limit plate and the fixed limit plate.

7. The device for improving component assembly accuracy through a vision device according to claim 1, characterized in that, It also includes a semi-finished product conveyor belt, which is located on one side of the semi-finished product clamping assembly.

8. The device for improving component assembly accuracy through a vision device according to claim 7, characterized in that, The semi-finished product clamping assembly includes multiple positioning cylinders, which are distributed on both sides of the semi-finished product conveyor belt.