Visual inspection mechanism for assembly
By using structural designs such as curved track plates and support blocks, the visual inspection camera can be rotated and adjusted at multiple angles, solving the problem of blind spots, improving the comprehensiveness and accuracy of inspection, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
Existing visual inspection agencies are prone to creating blind spots when dealing with products with multi-dimensional irregular structures and connecting nodes, and need to add multiple cameras, increasing costs.
An assembly vision inspection mechanism was designed, which uses an arc-shaped track plate, support block, U-shaped bracket and multi-angle rotation adjustment of vision inspection camera, combined with a protective ring, infrared range sensor and capacitive sensing arc plate to realize flexible movement and angle adjustment of camera and avoid visual blind spots.
It significantly expands the scope of testing, improves the completeness and accuracy of testing, and reduces equipment procurement and maintenance costs.
Smart Images
Figure CN224065132U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of quality monitoring technology, specifically relating to an assembly visual inspection mechanism. Background Technology
[0002] In today's highly industrialized era, the pursuit of product quality in manufacturing has reached unprecedented heights. As a crucial link in the production chain, product assembly directly impacts the performance and market competitiveness of the final product. Visual inspection agencies play an indispensable role in the post-assembly transfer stage. Currently, a common practice is to mount visual inspection cameras on specially designed brackets, granting the cameras a degree of angle adjustment autonomy. This allows for adapting the shooting angle to specific conditions, capturing the state information of all parts of the product as comprehensively as possible after assembly.
[0003] However, serious shortcomings were exposed during actual operation. Although the camera can make fine-tuning adjustments within the range limited by the bracket, its radius of motion is extremely limited by the bracket's structure, the layout of surrounding equipment, and the workspace. When dealing with products with multi-dimensional irregular structures and numerous connection points, blind spots are easily formed. Furthermore, since it is impossible to obtain complete and accurate inspection results with a single camera, more visual inspection cameras need to be added at different key inspection points, increasing procurement and subsequent maintenance costs. Utility Model Content
[0004] This invention provides an assembly-based visual inspection mechanism that enhances the inspection range of inspection agencies worldwide.
[0005] This utility model provides the following technical solution: It includes a visual inspection camera, on which an angle adjustment frame is provided. The angle adjustment frame includes a support block and a U-shaped bracket. The U-shaped bracket is rotatably connected to the bottom end of the support block. The visual inspection camera is rotatably connected to the inner wall of the U-shaped bracket. An arc-shaped track plate is provided on the support block. A through hole is formed on the side wall of the support block. The arc-shaped track plate is slidably connected to the inner wall of the through hole. Lifting side plates are provided on both sides of the arc-shaped track plate. A sliding groove is formed on one side of each of the two lifting side plates. The arc-shaped track plate is slidably connected to the inner wall of the two sliding grooves.
[0006] The support block has a drive mechanism housing installed at its top, and a gear is rotatably connected to the inner wall of the drive mechanism housing. The top of the arc-shaped track plate has a toothed groove that meshes with the gear.
[0007] The visual inspection camera has a protective ring slidably connected to its side wall. The protective ring has four connecting holes, and each of the four connecting holes has a limit block slidably connected to its inner wall. The limit block is installed on one side of the visual inspection camera.
[0008] The protective ring has four elastic telescopic plates installed at one end, and all four elastic telescopic plates are installed on one side of the visual inspection camera.
[0009] One of the limiting blocks is equipped with an infrared ranging sensor, which does not contact the inner wall of the connecting hole.
[0010] The protective ring is equipped with capacitive sensing arc-shaped plates on all four sides, and the four capacitive sensing arc-shaped plates are arranged in a circular array.
[0011] The beneficial effects of this utility model are as follows: Through the multi-angle rotation and adjustment design of the arc-shaped track plate, support block, U-shaped bracket, and the vision inspection camera itself, the vision inspection camera is no longer limited to a fixed position and angle, and can move and adjust its angle flexibly within a large range. This significantly expands the visual inspection range of assembled products. Whether it is a flat area of the product or a part with a certain curvature or height variation, more comprehensive and accurate inspection can be obtained, effectively reducing visual blind spots and improving the integrity and accuracy of inspection. Since this mechanism can achieve wider and more flexible inspection with a single vision inspection camera, it avoids the need to add multiple vision inspection cameras at different key inspection points due to limited inspection range, thereby greatly reducing the equipment procurement cost.
[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0015] Figure 3 This is a three-dimensional enlarged structural diagram of the angle adjustment frame in this utility model;
[0016] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.
[0017] In the diagram: 1. Visual inspection camera; 2. Angle adjustment frame; 21. Support block; 211. Docking hole; 22. U-shaped bracket; 23. Drive mechanism housing; 3. Arc-shaped track plate; 31. Lifting side plate; 311. Slide groove; 32. Gear groove; 4. Protective ring; 41. Connecting hole; 42. Limiting block; 421. Infrared ranging sensor; 43. Elastic telescopic plate; 44. Capacitive sensing arc plate. Detailed Implementation
[0018] Please see Figures 1-4 The present invention provides the following technical solution: a visual inspection camera 1 is provided, an angle adjustment frame 2 is provided on the visual inspection camera 1, the angle adjustment frame 2 includes a support block 21 and a U-shaped bracket 22, the U-shaped bracket 22 is rotatably connected to the bottom end of the support block 21, the visual inspection camera 1 is rotatably connected to the inner wall of the U-shaped bracket 22, an arc-shaped track plate 3 is provided on the support block 21, a docking hole 211 is opened on the side wall of the support block 21, the arc-shaped track plate 3 is slidably connected to the inner wall of the docking hole 211, lifting side plates 31 are provided on both sides of the arc-shaped track plate 3, a sliding groove 311 is opened on one side of each of the two lifting side plates 31, and the arc-shaped track plate 3 is slidably connected to the inner wall of the two sliding grooves 311.
[0019] In this implementation scheme: the arc-shaped track plate 3 is installed on the product assembly line via two lifting side plates 31. After the product assembly is completed, the conveyor mechanism drives the product through the arc-shaped track plate 3. The arc-shaped track plate 3 is height-adjustable on the inner walls of the two sliding grooves 311. The height of the arc-shaped track plate 3 is adjusted by a motor driving a lead screw, which facilitates the adjustment of the distance between the vision inspection camera 1 and the product. This allows for easy adjustment based on the size of the product, providing high adaptability and flexibility. The arc-shaped track plate 3 provides a sliding track for the angle adjustment frame 2, allowing the support block 21 to move the U-shaped bracket 22 to different positions inside the arc-shaped track plate 3. The vision inspection camera 1 can be rotated and its angle adjusted within the U-shaped bracket 22, and the U-shaped bracket 22 can also be rotated and its angle adjusted at the bottom of the support block 21. The angle adjustment mechanism allows the lens of the visual inspection camera 1 to have a certain angle adjustment capability. The support block 21 is fitted onto the outside of the arc track plate 3 through the docking hole 211. By controlling the sliding of the support block 21 on the arc track plate 3, the position adjustment range of the angle adjustment frame 2 is expanded, and the shooting range of the visual inspection camera 1 is increased. This allows the visual inspection camera 1 to no longer be limited to switching angles at a fixed position. It enables the visual inspection camera 1 to perform more flexible and extensive visual inspection of assembled products. This solves the problem that when dealing with products with multi-dimensional irregular structures and numerous connection nodes, visual blind spots are easily formed. Furthermore, since it is impossible to obtain complete and accurate inspection results with a single camera, it is necessary to add more cameras at different key inspection points, which increases the procurement cost and subsequent maintenance cost.
[0020] A drive mechanism housing 23 is installed on the top of the support block 21. Gears are rotatably connected to the inner wall of the drive mechanism housing 23. A toothed groove 32 that meshes with the gears is opened on the top of the arc-shaped track plate 3. The internal dimensions of the drive mechanism housing 23 are driven by a motor. The rotation of the U-shaped bracket 22 and the angle adjustment of the vision inspection camera 1 inside the U-shaped bracket 22 are both driven by the corresponding motors. The drive mechanism housing 23 provides external protection for the connection between the motor and the support block 21, reducing external interference problems, so that the support block 21 can complete the position adjustment by using the arc-shaped track plate 3 as a sliding track.
[0021] A protective ring 4 is slidably connected to the side wall of the visual inspection camera 1. The protective ring 4 has four connecting holes 41, and each of the four connecting holes 41 has a limiting block 42 slidably connected to its inner wall. The limiting block 42 is installed on one side of the visual inspection camera 1. The protective ring 4 provides external protection for the lens of the visual inspection camera 1, and the protective ring 4 will not obstruct the image captured by the lens and thus affect the visual inspection effect. The protection of the protective ring 4 reduces the impact and damage to the lens caused by external objects. The visual inspection camera 1 supports and limits the four limiting blocks 42. The four limiting blocks 42 guide and limit the protective ring 4 through the four connecting holes 41, preventing the protective ring 4 from detaching from the visual inspection camera 1.
[0022] Four elastic telescopic plates 43 are installed at one end of the protective ring 4. All four elastic telescopic plates 43 are installed on one side of the vision inspection camera 1. The vision inspection camera 1 supports the four elastic telescopic plates 43. The four elastic telescopic plates 43 push the protective ring 4 with the vision inspection camera 1 as the support base, so that the protective ring 4 can slide away from the vision inspection camera 1. When the protective ring 4 comes into contact with an object, it can retract and buffer under force, which makes it easier to give the vision inspection camera 1 the time and ability to change position.
[0023] An infrared ranging sensor 421 is installed inside one of the limiting blocks 42. The infrared ranging sensor 421 does not contact the inner wall of the connecting hole 41. The infrared ranging sensor 421 is embedded in one side of the corresponding limiting block 42, so that the protective ring 4 cannot contact the infrared ranging sensor 421 and cause it to be damaged. When the protective ring 4 comes into contact with a foreign object, it slides under force, causing the position between the connecting hole 41 and the infrared ranging sensor 421 to change. The infrared ranging sensor 421 senses the displacement of the protective ring 4 in time and transmits the contact information between the protective ring 4 and the foreign object to the PLC control mechanism of the equipment, so that the visual inspection camera 1 can adjust its position and angle in time to move away from the object and prevent the visual inspection camera 1 from being damaged in the future.
[0024] The protective ring 4 is equipped with capacitive sensing arc plates 44 on all four sides, and the four capacitive sensing arc plates 44 are arranged in a circumferential array. The four capacitive sensing arc plates 44 surround the lens of the vision inspection camera 1, so that when a foreign object comes into contact with the protective ring 4 from the side, it can be detected in time. The capacitive sensing arc plates 44 detect based on the change of electric field. When a foreign object approaches or touches the arc plate, it will change the capacitance between the electrode and the surrounding environment. The contact information is transmitted to the PLC control mechanism of the equipment, so that the vision inspection camera 1 can adjust its position and angle in time to move away from the object, further preventing the vision inspection camera 1 from being damaged in the future.
[0025] The working principle and usage process of this utility model are as follows: The arc-shaped track plate 3 is installed on the production line via the lifting side plate 31. When the product is conveyed, the motor drives the lead screw to rotate, causing the arc-shaped track plate 3 to rise and fall within the slide groove 311 of the lifting side plate 31, adjusting the distance between the vision inspection camera 1 and the product to adapt to different product heights. The support block 21 slides on the arc-shaped track plate 3, and the U-shaped bracket 22 at its bottom and the vision inspection camera 1 inside can rotate, realizing multi-angle and positional adjustment of the camera in the horizontal direction, expanding the detection range. The protective ring 4 slides on the side wall of the vision inspection camera 1. Its elastic telescopic plate 43 retracts and buffers when it comes into contact with a foreign object, protecting the camera lens. It is slidably connected to the protective ring 4 through the connecting hole 41. When the protective ring 4 is slid by an external force, the infrared ranging sensor 421 senses the change in distance. At the same time, the capacitive sensing arc-shaped plates 44 on the four sides of the protective ring 4 detect the foreign object according to the change in electric field. The two transmit the contact information to the PLC control mechanism to control the camera to adjust its position and angle to prevent damage.
Claims
1. An assembly vision inspection mechanism comprising a vision inspection camera (1), characterized in that: The visual detection camera (1) is provided with an angle adjusting frame (2), the angle adjusting frame (2) comprises a supporting block (21) and a U-shaped support (22), the U-shaped support (22) is rotationally connected to the bottom end of the supporting block (21), the visual detection camera (1) is rotationally connected to the inner wall of the U-shaped support (22), the supporting block (21) is provided with an arc-shaped track plate (3), the side wall of the supporting block (21) is provided with a butt joint perforation (211), the arc-shaped track plate (3) is slidingly connected to the inner wall of the butt joint perforation (211), the arc-shaped track plate (3) is provided with a lifting side plate (31) on both sides, and the lifting side plate (31) is provided with a sliding groove (311) on one side.
2. The vision inspection mechanism of claim 1, wherein: The supporting block (21) is provided with a driving mechanism shell (23) at the top end, the inner wall of the driving mechanism shell (23) is rotationally connected with a gear, and the top end of the arc-shaped track plate (3) is provided with a meshing tooth groove (32) engaged with the gear.
3. The vision inspection mechanism of claim 1, wherein: The visual detection camera (1) is slidingly connected with a protective ring (4) on the side wall, the protective ring (4) is provided with four connecting holes (41), the inner wall of the connecting hole (41) is slidingly connected with a limiting block (42), and the limiting block (42) is installed on one side of the visual detection camera (1).
4. The vision inspection mechanism of claim 3, wherein: The protective ring (4) is provided with four elastic expansion plates (43) at one end, and the four elastic expansion plates (43) are installed on one side of the visual detection camera (1).
5. The vision inspection mechanism of claim 3, wherein: One of the limiting blocks (42) is provided with an infrared distance measuring sensor (421) in the inner wall, and the infrared distance measuring sensor (421) is not in contact with the inner wall of the connecting hole (41).
6. The vision inspection mechanism of claim 3, wherein: The protective ring (4) is provided with a capacitive sensing arc-shaped sheet (44) on four sides, and the four capacitive sensing arc-shaped sheets (44) are distributed in a circular array.