Mechanical system for trimming steering wheel
By combining a laser system with an automated adjustment mechanism, highly efficient and automated processing of steering wheel edge trimming has been achieved, solving the problems of low efficiency and poor consistency of traditional manual edge trimming and improving product quality.
Patent Information
- Application Number
- CN202520095914.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional manual edge trimming of steering wheels is inefficient, costly, and results in poor product consistency.
The system employs a laser system, a first positioning mechanism, a 3D camera, a second positioning mechanism, a testing platform, a robotic arm, and a flying knife assembly. It achieves automated edge trimming through horizontal and vertical positioning and uses a laser system for precise processing.
This improved the processing efficiency and product consistency of steering wheel edge trimming, thus enhancing product quality.
Smart Images
Figure CN223762659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a laser processing system, and more particularly to a mechanical system for achieving edge trimming of steering wheels. Background Technology
[0002] A car steering wheel is a wheel-shaped device used to control the direction of travel in a car. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque and transmit it to the steering shaft. After the initial processing of the steering wheel, there are still scrap edges left at the inner and outer edges. To improve the comfort and aesthetics of the steering wheel, it needs to be edged, sanded, and roughened in sequence before leather is wrapped around the foam layer. Traditional technology uses manual edge beveling of the steering wheel. This method is inefficient (120 seconds / piece), increases labor costs, reduces the economic benefits for manufacturers, and, more importantly, results in poor product consistency after processing. Utility Model Content
[0003] Therefore, it is necessary to provide a mechanical system for achieving steering wheel beveling, addressing the shortcomings of existing technologies.
[0004] A mechanical system for beveling steering wheels, characterized in that it includes a system controller, a frame, a marble, a laser system mounted on the top of the frame, a first adjustment mechanism mounted on the frame and located on one side of the laser system, a 3D camera mounted on the first adjustment mechanism, a second adjustment mechanism mounted on the front side of the frame, a test platform mounted on the second adjustment mechanism, and a robotic arm and a flying knife assembly mounted on the marble. The first adjustment mechanism drives the 3D camera to adjust horizontally, and the second adjustment mechanism drives the test platform to adjust vertically. The system controller controls the operation of the first adjustment mechanism, the laser system, the second adjustment mechanism, and the 3D camera.
[0005] In one embodiment, the first adjustment mechanism includes a first support frame, a first guide rail mounted on the first support frame, a first drive motor mounted on the first support frame and disposed on one side of the first guide rail, a first lead screw connected to the first drive motor, a first slider slidably disposed on the first guide rail, a first adjustment block mounted on the first slider, and a first follower frame mounted on the first adjustment block. The first lead screw passes through the first adjustment block and is threadedly installed with the first adjustment block.
[0006] In one embodiment, the first guide rail is mounted horizontally, and the 3D camera is mounted on the first servo mount.
[0007] In one embodiment, the second adjustment mechanism includes a second support frame, a second guide rail mounted on the second support frame, a second drive motor mounted on the second support frame and disposed above the second guide rail, a second lead screw connected to the second drive motor, a second slider slidably disposed on the second guide rail, a second adjustment block mounted on the second slider, and a second follower frame mounted on the second adjustment block. The second lead screw passes through the second adjustment block and is threadedly installed with the second adjustment block.
[0008] In one embodiment, the second guide rail is mounted vertically, and the test platform is mounted on the second follower frame.
[0009] In one embodiment, the laser system includes an ultraviolet laser, a beam expander, an ultraviolet reflector, and a 3D galvanometer system. The ultraviolet laser emits a diameter beam that is converted into a collimated beam by the center of the beam expander, and the collimated beam is reflected by the center of the ultraviolet reflector into the 3D galvanometer system.
[0010] In one embodiment, the ultraviolet laser is a 355nm wavelength ultraviolet laser, the beam expander is an 8x beam expander, and the number of ultraviolet reflectors is two.
[0011] The beneficial effects of this utility model's mechanical system for achieving steering wheel edge trimming are as follows: By setting up a laser system, a first adjustment mechanism, a 3D camera, a second adjustment mechanism, a test platform, a robotic arm, and a flying knife assembly, the first adjustment mechanism drives the 3D camera to adjust horizontally, thereby scanning the steering wheel to obtain coordinate data of the position to be trimmed. The second adjustment mechanism drives the test platform to adjust vertically, which is used to achieve distortion correction of the 3D galvanometer system. The system controller controls the laser system to process the steering wheel, effectively improving processing efficiency, resulting in good consistency of the processed steering wheel, and effectively improving product quality. Attached Figure Description
[0012] Figure 1 Steering wheel products to be cut and processed
[0013] Figure 2 , Figure 3 This is a schematic diagram of the mechanical system of this utility model used to achieve steering wheel beveling at different angles;
[0014] Figure 4 This is a schematic diagram of the structure of the first adjustment mechanism of this utility model;
[0015] Figure 5 This is a schematic diagram of the structure of the second adjustment mechanism of this utility model. Detailed Implementation
[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are 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.
[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0022] Please see Figures 1 to 5 This utility model provides a mechanical system for beveling steering wheels, used to beveling steering wheels 100 after preliminary processing. The mechanical system for beveling steering wheels includes a system controller, a frame 10, a marble 70, a laser system 20 mounted on the top of the frame 10, a first adjustment mechanism 30 mounted on the frame 10 and located on one side of the laser system 20, a 3D camera 50 mounted on the first adjustment mechanism 30, a second adjustment mechanism 40 mounted on the front side of the frame 10, a test platform 60 mounted on the second adjustment mechanism 40, a robot arm 80 mounted on the marble 70, and a flying knife assembly 90. The first adjustment mechanism 30 drives the 3D camera 50 to adjust horizontally, and the second adjustment mechanism 40 drives the test platform 60 to adjust vertically. The system controller controls the operation of the first adjustment mechanism 30, the laser system 20, the second adjustment mechanism 40, and the 3D camera 50.
[0023] The laser system 20 includes an ultraviolet laser 21, a beam expander 22, an ultraviolet reflector 23, and a 3D galvanometer system 24. The ultraviolet laser 21 emits a diameter beam, which is converted into a collimated beam by the center of the beam expander 22. The collimated beam is then reflected by the center of the ultraviolet reflector 23 and enters the 3D galvanometer system 24. In this embodiment, the ultraviolet laser 21 is a 355nm wavelength ultraviolet laser, the beam expander 22 is an 8x beam expander, there are two ultraviolet reflectors 23, and the working distance of the 3D galvanometer system 24 is 453mm. The height difference between the center of the input port of the 3D galvanometer system 24 and the center of the output port of the ultraviolet laser 21 is 25mm.
[0024] The first adjustment mechanism 30 includes a first support frame 31, a first guide rail 33 mounted on the first support frame 31, a first drive motor 32 mounted on the first support frame 31 and located on one side of the first guide rail 33, a first lead screw 36 connected to the first drive motor 32, a first slider 34 slidably mounted on the first guide rail 33, a first adjustment block 35 mounted on the first slider 34, and a first follower frame 37 mounted on the first adjustment block 35. The first guide rail 33 is installed in a horizontal direction. The first lead screw 36 passes through the first adjustment block 35 and is threadedly installed with the first adjustment block 35. The 3D camera 50 is mounted on the first follower frame 37. The first drive motor drives the first lead screw 36 to rotate. During the rotation, the first lead screw 36 drives the first adjustment block 35 to adjust in the horizontal direction through threaded engagement. During the adjustment, the first adjustment block 35 drives the first follower frame 37 and the 3D camera 50 mounted on the first follower frame 37 to move synchronously in the horizontal direction.
[0025] The second adjustment mechanism 40 includes a second support frame 41, a second guide rail 43 mounted on the second support frame 41, a second drive motor 42 mounted on the second support frame 41 and located above the second guide rail 43, a second lead screw 46 connected to the second drive motor 42, a second slider 44 slidably mounted on the second guide rail 43, a second adjustment block 45 mounted on the second slider 44, and a second follower frame 47 mounted on the second adjustment block 45. The second guide rail 43 is installed vertically. The second lead screw 46 passes through the second adjustment block 45 and is threadedly installed with the second adjustment block 45. The test platform 60 is mounted on the second follower frame 47. The second drive motor 42 drives the second lead screw 46 to rotate. During the rotation, the second lead screw 46 drives the second adjustment block 45 to adjust vertically through threaded engagement. During the adjustment, the second adjustment block 45 drives the second follower frame 47 and the test platform 60 mounted on the second follower frame 47 to move synchronously vertically.
[0026] Before processing, the model number of the steering wheel to be processed (100) is input into the system controller. The system controller then controls the second adjustment mechanism 40 according to a preset program. The second lead screw 46 of the second adjustment mechanism 40 drives the test platform 60 to adjust vertically to the designated height. Marking paper is then placed on the test platform 60. Based on the marking effect of the laser system 20 on the marking paper, field curvature correction is performed on the laser system 20 to ensure that the laser focus is strictly consistent at all positions within the reference plane, meaning that the laser cutting line width error is within ±10μm in different directions. After field curvature correction, the second adjustment mechanism 40 drives the test platform 60 downwards to prevent interference from the test platform 60 with the laser system 20 during processing.
[0027] During processing, the first adjustment mechanism 30 drives the 3D camera 50 to adjust horizontally, moving the 3D camera 50 to the designated position. The robot arm 80 drives the steering wheel 100 to be processed horizontally below the 3D camera 50. The 3D camera 50 acquires the coordinate data of the area to be cut 110 and fits it into a curve. The area to be cut includes a first area to be cut 130 and a second area to be cut 120. The first area to be cut 130 is suitable for laser cutting, and the second area to be cut 120 is suitable for flying knife cutting. The second area to be cut 120 has higher requirements for the smoothness after cutting.
[0028] After the area to be cut is determined, the robotic arm 80 moves each of the first areas 130 to be cut on the steering wheel 100 sequentially to the processing area of the laser system. After each adjustment, the 3D galvanometer system 24 changes the position of the laser focus of the laser system 20. The laser system 20 cuts and processes the first areas 130 to be cut on the steering wheel 100 at different positions. After processing the first areas 130 to be cut on the steering wheel 100, the robotic arm 80 moves the steering wheel 100 to be processed onto the flying knife assembly 90 for processing. The flying knife assembly 90 cuts the second area 120 to be cut on the steering wheel 100.
[0029] The beneficial effects of this utility model's mechanical system for achieving steering wheel edge trimming are as follows: By setting up a laser system 20, a first adjustment mechanism 30, a 3D camera 50, a second adjustment mechanism 40, a test platform 60, a robotic arm 80, and a flying knife assembly 90, the first adjustment mechanism 30 drives the 3D camera 50 to adjust in the horizontal direction to scan the steering wheel 100 and obtain the coordinate data of the position of the steering wheel 100 to be trimmed. The second adjustment mechanism 40 drives the test platform 60 to adjust in the vertical direction to achieve distortion correction of the 3D galvanometer system 24. The system controller controls the laser system 20 to process the steering wheel 100, effectively improving processing efficiency. The processed steering wheel 100 has good consistency, effectively improving product quality.
[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A mechanical system for implementing steering wheel beveling, characterized by, The system comprises a system controller, a rack, a marble, a laser system installed on the top of the rack, a first positioning mechanism installed on the rack and located on one side of the laser system, a 3D camera installed on the first positioning mechanism, a second positioning mechanism installed on the front side of the rack, a test platform installed on the second positioning mechanism, a mechanical hand and a flying knife assembly installed on the marble, the first positioning mechanism drives the 3D camera to be positioned in the horizontal direction, the second positioning mechanism drives the test platform to be positioned in the vertical direction, and the system controller controls the first positioning mechanism, the laser system, the second positioning mechanism and the 3D camera to work.
2. A mechanical system for implementing the beveling of a steering wheel according to claim 1, characterized in that, The first positioning mechanism comprises a first support frame, a first guide rail installed on the first support frame, a first drive motor installed on the first support frame and located on one side of the first guide rail, a first screw connected with the first drive motor, a first sliding block sliding on the first guide rail, a first positioning block installed on the first sliding block, and a first follow-up frame installed on the first positioning block, and the first screw passes through the first positioning block and is screw-mounted with the first positioning block.
3. A mechanical system for implementing the beveling of a steering wheel according to claim 2, characterized in that, The first guide rail is installed in the horizontal direction, and the 3D camera is installed on the first follow-up frame.
4. A mechanical system for implementing steering wheel bevel according to claim 1, characterized in that, The second positioning mechanism comprises a second support frame, a second guide rail installed on the second support frame, a second drive motor installed on the second support frame and located above the second guide rail, a second screw connected with the second drive motor, a second sliding block sliding on the second guide rail, a second positioning block installed on the second sliding block, and a second follow-up frame installed on the second positioning block, and the second screw passes through the second positioning block and is screw-mounted with the second positioning block.
5. A mechanical system for implementing the beveling of a steering wheel according to claim 4, characterized in that, The second guide rail is installed in the vertical direction, and the test platform is installed on the second follow-up frame.
6. A mechanical system for implementing steering wheel bevel according to claim 2, characterized in that, The laser system comprises an ultraviolet laser, a beam expander, an ultraviolet reflector and a 3D galvanometer system, the ultraviolet laser emits a diameter beam which is converted into a collimated beam through the center of the beam expander, and the collimated beam is reflected through the center of the ultraviolet reflector into the 3D galvanometer system.
7. A mechanical system for implementing the beveling of a steering wheel according to claim 6, characterized in that, The ultraviolet laser is a wavelength 355nm ultraviolet laser, the beam expander is an 8 times beam expander, and the number of ultraviolet reflectors is 2.