Adjusting mechanism for assembling projection logo
By combining clamping structures with clamping plates and fixing springs, and using an air pump to blow away dust, the problems of low mechanical fixing efficiency and dust interference in the assembly process of projection optical engines are solved, enabling rapid and accurate assembly and efficient production of projection optical engines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-03
AI Technical Summary
The current assembly process for automotive rear projection logos suffers from low mechanical fixing efficiency and poor detection accuracy due to dust interference, resulting in low assembly precision and low production efficiency.
The combination of clamping plates and fixing springs is used to quickly fix the projection optical engine, and an air pump blows away the dust to prevent dust from adhering. Combined with the automatic adjustment of the robotic arm and industrial camera, precise assembly and cleaning are achieved.
It improved the assembly precision and production efficiency of the projection optical engine, reduced manual cleaning time, ensured image acquisition clarity, and improved overall production efficiency.
Smart Images
Figure CN224079895U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts assembly technology, specifically relating to an adjustment mechanism for assembling projected logos. Background Technology
[0002] The AR smart projection tailgate projects a pattern onto the ground at the rear of the vehicle using optical projection technology. When a user steps on the pattern, a Time-of-Flight (TOF) module accurately detects this and issues a command, ensuring the tailgate opens within a safe distance. The opening methods for car tailgates have evolved from manual to electric to sensor-based, and the design concepts have matured. The AR smart projection tailgate is a trendy design in modern automobiles, enhancing the car's technological feel. Owners can design different logos according to their preferences, further improving the driving experience.
[0003] When assembling and debugging projected logos, the adjustable space for the projected logo is small and the positional accuracy is critical. Improper adjustment can easily lead to problems such as projected image distortion, blurriness, poor clarity, and insufficient brightness. The following are the main technical problems encountered in the assembly process of existing automotive rear-mounted logo projection systems:
[0004] Mechanical fixing is inefficient: Traditional projection optical engine fixing devices mostly use screw fastening, which is time-consuming to disassemble and assemble each time, and repeated disassembly and assembly can easily lead to thread wear, affecting assembly accuracy;
[0005] Dust interference detection accuracy: Dust particles in the assembly environment can easily adhere to the surface of the projection optical engine lens or industrial camera lens, causing blurry areas in the images captured by the industrial camera, requiring frequent manual cleaning and affecting the production cycle. Utility Model Content
[0006] The purpose of this invention is to provide an adjustment mechanism for assembling projected logos, so as to solve the problems of low mechanical fixing efficiency and dust interference detection accuracy mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustment mechanism for assembling a projected logo, comprising a workbench, an industrial computer, a display screen, a robotic arm, and an adjustment platform. A target is mounted on the surface of the adjustment platform, and a fixed seat is mounted on the surface of the adjustment platform. A through groove is formed on one outer wall of the fixed seat, and a projection optical engine is placed in the through groove of the fixed seat. A fixed column is fixed inside the fixed seat, and two guide blocks are movably connected to the outside of the fixed column. Two fixing springs for supporting the guide blocks are sleeved on the outside of the fixed column. A clamping plate for holding the projection optical engine is fixed on one outer wall of the guide block. An industrial camera is mounted on the surface of the fixed seat, and an air blowing plate is mounted on one outer wall of the fixed seat. An air pump is mounted on the surface of the air blowing plate.
[0008] In a further embodiment, the surface of the fixed base is provided with a movable hole, and a connecting column is movably connected in the movable hole. A push plate and a pressing block are respectively fixed at both ends of the connecting column.
[0009] In a further embodiment, two push-pull rods are provided below the push plate, and both ends of the push-pull rods are rotatably connected to connecting seats that are fixedly connected to the guide block and the push plate.
[0010] In a further embodiment, the guide block has multiple rotating grooves, and sliding balls that are in contact with the fixed column are tumblingly connected in the rotating grooves of the guide block.
[0011] In a further embodiment, the outer walls on both sides of the push plate are also provided with rotating grooves, and the rotating grooves of the push plate are connected with limiting balls. The inner walls on both sides of the fixed seat are provided with limiting grooves for the limiting balls to slide.
[0012] In a further embodiment, a plurality of air holes are provided on one outer wall of the air blowing plate, and the air outlet pipe of the air pump extends into the air vent plate.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] The adjustment mechanism for assembling the projected logo uses the elastic force of two fixed springs to simultaneously clamp two clamps on both sides of the projector, enabling quick and precise installation and fixation of the projector, ensuring assembly accuracy. At the same time, the clamps are opened and closed by pressing blocks, which greatly improves efficiency compared to the traditional screw fixing method, thereby shortening the subsequent disassembly time of the projector and improving production efficiency.
[0015] By blowing air into the air-blowing plate through multiple air holes on the plate, dust near the industrial camera and projector optical engine can be blown away, preventing dust from adhering to the projector optical engine and industrial camera, causing blurry areas in the images captured by the industrial camera, affecting the accuracy of subsequent processing. It also eliminates the need for manual dust cleaning, reduces downtime, and further improves production efficiency. This adjustment mechanism for assembling the projected logo can significantly improve the assembly accuracy and production efficiency of the automotive rear projection system, facilitate the disassembly and assembly of the projector optical engine, and ensure the clarity of image acquisition. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the fixing base of this utility model;
[0019] Figure 3 This is a cross-sectional view of the fixing base of this utility model;
[0020] Figure 4 This is a partial sectional view of the fixing base of this utility model.
[0021] In the diagram: 1. Workbench; 2. Industrial computer; 3. Display screen; 4. Robotic arm; 5. Target; 6. Adjustment platform; 7. Fixed base; 8. Projection optical engine; 9. Fixed column; 10. Guide block; 11. Sliding ball; 12. Fixed spring; 13. Clamping plate; 14. Connecting column; 15. Push plate; 16. Push-pull rod; 17. Limiting ball; 18. Pressing block; 19. Industrial camera; 20. Air blowing plate; 21. Air pump. Detailed Implementation
[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0023] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0024] This utility model provides, for example Figure 1-4 The adjustment mechanism for assembling a projected logo includes a workbench 1, an industrial computer 2, a display screen 3, a robotic arm 4, and an adjustment platform 6. The industrial computer 2 has built-in software algorithms to implement functions and calculate the optimal position of the logo through programming. The gripper of the robotic arm 4 holds a sign for logo projection. The robotic arm 4 is existing technology, and its structure will not be described in detail here. The robotic arm 4 works in conjunction with the industrial computer 2 to automatically adjust the sign to the optimal position. The surface of the adjustment platform 6 is bolted with a target 5.
[0025] A mounting base 7 is installed on the surface of the adjustment platform 6. A through groove is opened on one side of the outer wall of the mounting base 7, and a projection optical engine 8 is placed in the through groove of the mounting base 7. A fixing post 9 is fixed in the mounting base 7 by screws. Two guide blocks 10 are movably connected to the outside of the fixing post 9, and two fixing springs 12 for supporting the guide blocks 10 are sleeved on the outside of the fixing post 9. A clamping plate 13 for clamping the projection optical engine 8 is fixed on one side of the outer wall of the guide block 10. Multiple rotating grooves are opened in the guide block 10, and sliding balls 11 that are in contact with the fixing post 9 are rolled in the rotating grooves of the guide block 10. The sliding balls 11 can make the guide block 10 move more smoothly outside the fixing post 9. Through the elastic force of the two fixing springs 12, the two clamping plates 13 can be clamped on both sides of the projection optical engine 8 at the same time, which can quickly and accurately complete the installation and fixing of the projection optical engine 8 and ensure assembly accuracy.
[0026] The surface of the fixed base 7 has a movable hole, and a connecting post 14 is movably connected in the movable hole. A push plate 15 and a pressing block 18 are fixed to both ends of the connecting post 14, respectively. Two push-pull rods 16 are provided below the push plate 15. Both ends of the push-pull rods 16 are rotatably connected to connecting seats that are fixedly connected to the guide block 10 and the push plate 15. Rotating grooves are also provided on the outer walls of both sides of the push plate 15. Limiting balls 17 are rolled within the rotating grooves of the push plate 15. Limiting grooves are provided on the inner walls of both sides of the fixed base 7 for the limiting balls 17 to slide. The limiting balls 17 are positioned within the limiting grooves of the fixed base 7. The rolling mechanism within the groove, while ensuring smooth movement of the push plate 15, restricts the movement path of the push plate 15, ensuring that the push plate 15 moves vertically within the fixed seat 7. Through the cooperation between the sliding ball 11 and the limiting ball 17, the opening and closing error of the clamping plate 13 can be reduced, thereby improving the positioning accuracy. The pressing block 18 drives the connecting column 14 and the push plate 15 to move, and the clamping plate 13 is opened and closed in conjunction with the push-pull rod 16 and the guide block 10. Compared with the traditional screw fixing method, the efficiency is greatly improved, thereby shortening the disassembly time of the subsequent projection optical engine 8 and improving production efficiency.
[0027] An industrial camera 19 is mounted on the surface of the mounting base 7, and an air blowing plate 20 is mounted on one side of the outer wall of the mounting base 7 by screws. An air pump 21 is mounted on the surface of the air blowing plate 20, and multiple air blowing holes are opened on one side of the outer wall of the air blowing plate 20. The air outlet pipe of the air pump 21 extends into the air vent plate. The air blowing holes are arranged in an array and the angle between them and the lens axis of the projection optical engine 8 is 45°-60° to form a spiral airflow covering the lens surface. Air is blown into the air blowing plate 20 by the air pump 21 and then blown away by the multiple air blowing holes on the air blowing plate 20. This prevents dust from adhering to the projection optical engine 8 and the industrial camera 19, causing blurry areas in the image captured by the industrial camera 19 and affecting the subsequent processing accuracy.
[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0029] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] Working principle:
[0031] The adjustment mechanism for the projected logo works as follows: The projector 8 is placed in the fixed base 7. Two clamping plates 13 simultaneously hold the projector 8 in place by the elastic force of two fixing springs 12, quickly and accurately installing and fixing the projector 8. The logo label is placed on the gripper of the robotic arm 4, which inserts the label into the projector 8. The projector 8 is then activated, projecting the logo onto the target 5. The industrial camera 19 captures the image from the target 5 and transmits it to the display screen 3. Simultaneously, the air pump 21 is activated, blowing air into the air blowing plate 20. Multiple air holes on the air blowing plate 20 remove dust from the vicinity of the industrial camera 19 and the projector 8. The software algorithm analyzes the real-time data transmitted by the industrial camera 19 and controls the movement of the robotic arm 4, adjusting the position of the logo projection on the target 5. When the data is optimal, the robotic arm 4 stops moving. Adhesive is applied to the logo and cured online. The final data is checked and recorded. Once qualified, the product is removed.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An assembly projection logo adjustment mechanism, comprising a workbench (1), an industrial computer (2), a display screen (3), a mechanical arm (4) and an adjustment platform (6), characterized in that: The surface of the adjusting platform (6) is provided with a target (5), the surface of the adjusting platform (6) is provided with a fixing seat (7), one side outer wall of the fixing seat (7) is provided with a through groove, and the through groove of the fixing seat (7) is placed with a projection light machine (8), the fixing seat (7) is fixed with a fixed column (9), the outer part of the fixed column (9) is movably connected with two guide blocks (10), and the outer part of the fixed column (9) is sleeved with two fixed springs (12) for supporting the guide blocks (10), one side outer wall of the guide block (10) is fixed with a clamping plate (13) for clamping the projection light machine (8), the surface of the fixing seat (7) is provided with an industrial camera (19), and one side outer wall of the fixing seat (7) is provided with a blowing plate (20), the surface of the blowing plate (20) is provided with a gas pump (21).
2. An adjustment mechanism for assembling a projection logo according to claim 1, characterized in that: The surface of the fixing seat (7) is provided with a moving hole, and the moving hole is movably connected with a connecting column (14), and the two ends of the connecting column (14) are respectively fixed with a push plate (15) and a pressing block (18).
3. An adjustment mechanism for assembling a projection logo as claimed in claim 2, characterized in that: The lower part of the push plate (15) is provided with two push-pull rods (16), and the two ends of the push-pull rod (16) are rotatably connected with the connecting seat fixedly connected with the guide block (10) and the push plate (15).
4. The adjustment mechanism for assembling a projection logo according to claim 1, wherein: A plurality of rotating grooves are formed in the guide block (10), and the rotating grooves in the guide block (10) are rollingly connected with sliding balls (11) matched with the fixed column (9).
5. The adjustable mechanism for assembling a projection logo according to claim 2, wherein: The two side outer walls of the push plate (15) are also provided with rotating grooves, the rotating grooves in the push plate (15) are rollingly connected with limiting balls (17), and the two side inner walls of the fixing seat (7) are provided with limiting sliding grooves for the sliding of the limiting balls (17).
6. The adjustment mechanism for assembling a projection logo according to claim 1, wherein: A plurality of air blowing holes are formed in one side outer wall of the blowing plate (20), and the air outlet pipe of the gas pump (21) extends into the air blowing plate.