An automobile parts paint spraying device
Patent Information
- Application Number
- CN202521869158.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-08-29
AI Technical Summary
[0004]为了解决传统喷漆装置喷漆局限性的问题，本申请提供一种汽车零部件喷漆装置
[0024]1.通过旋转机构、翻转机构等设置，实现了对零部件喷涂姿态的多维度调整，工装机构可灵活适配不同形状零部件并稳固固定，旋转机构驱动零部件水平旋转调整周向位置，翻转机构驱动喷漆平台绕水平轴多方向倾斜，二者协同使不规则零部件能够以多面和多角度的复合姿态呈现给多轴机械臂，配合机械臂根据预设程序或实时视觉反馈调整喷枪位置和角度，确保漆料以最佳入射角均匀覆盖复杂表面，有效解决了传统装置因姿态调整单一导致的漆膜厚度不均、流挂、漏喷等缺陷，提升了喷涂质量的稳定性和效率，降低了返工成本与材料浪费，满足现代化汽车零部件高质喷涂需求；
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Figure CN224793764U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of painting equipment technology, and in particular to a painting device for automotive parts. Background Technology
[0002] Automotive parts painting is a crucial step in the automobile manufacturing process, directly impacting the product's appearance, corrosion resistance, and lifespan. With the development of the automotive industry, consumers are increasingly demanding higher standards for the uniformity, adhesion, and environmental friendliness of coatings on parts. A typical painting process includes steps such as part loading, cleaning, flame treatment, electrostatic dust removal, painting, leveling, baking, and unloading. Among these, controlling the uniformity of the painting process is the core challenge, directly determining the stability of the coating quality.
[0003] In existing technologies, automotive parts painting devices typically consist of a fixed platform and a multi-axis robotic arm. The platform only supports horizontal rotation, and the robotic arm performs painting along a preset path. However, automotive parts generally have irregular shapes, such as complex curved surfaces, edges, and grooves. The platform's ability to rotate only horizontally prevents the parts from adjusting their posture at multiple angles during the painting process. The robotic arm's painting trajectory is also insufficient to cover all complex surfaces, and paint mist is prone to accumulation or insufficient coverage due to angle issues, resulting in defects such as uneven paint film thickness, runs, or missed spraying. Therefore, improvements are needed. Utility Model Content
[0004] To address the limitations of traditional painting equipment, this application provides a painting device for automotive parts.
[0005] The automotive parts painting device provided in this application adopts the following technical solution: it includes a painting platform and a multi-axis robotic arm. The painting platform is equipped with a tooling mechanism and a rotating mechanism. A frame is provided below the painting platform, and a tilting mechanism is provided on the frame. The tilting mechanism includes a tilting shaft, a shaped plate, a column, and a servo motor. The two ends of the tilting shaft are rotatably connected to the frame, and the output end of the servo motor is connected to the end of the tilting shaft. The painting platform is equipped with a shaft connector for connecting to the tilting shaft. One end of the shaped plate is sleeved on the tilting shaft, one end of the column is hinged to the end of the shaped plate away from the tilting shaft, and the other end of the column is hinged to the frame.
[0006] Because automotive parts generally have irregular shapes such as complex curved surfaces, edges, and grooves, the platform can only rotate horizontally. This makes it impossible for the parts to adjust their posture at multiple angles during the painting process. The painting trajectory of the robotic arm is difficult to cover all complex surfaces, and paint mist is prone to accumulate or insufficient coverage due to angle issues, resulting in defects such as uneven paint film thickness, runs, or missed spraying. An automotive parts painting device includes a painting platform and a multi-axis robotic arm. The multi-axis robotic arm performs the painting process. A tooling mechanism is installed on the painting platform, and a rotating mechanism is installed inside the painting platform. At the same time, the frame realizes the rotation of the painting platform through a flipping mechanism, which includes a flipping shaft, a shaped plate, a column, and a servo motor.
[0007] When painting automotive parts, the parts are fixed by tooling mechanisms. According to process requirements, the parts can undergo pre-treatment such as cleaning, flame treatment, and electrostatic dust removal by external equipment. Through the coordination of rotation and flipping mechanisms, the platform posture is adjusted so that irregular parts are presented to the robotic arm at multiple angles. The rotation mechanism drives the parts to rotate horizontally, and the flipping mechanism adjusts the circumferential position of the parts. The servo motor drives the flipping shaft to rotate, and the irregular plates sleeved at both ends of the flipping shaft rotate with the shaft. The column converts the rotational motion into the tilting motion of the painting platform. The platform tilts around the horizontal axis. After the platform is adjusted to the target posture, the multi-axis robotic arm adjusts the position and angle of the spray gun according to the preset program or real-time visual feedback such as 3D camera scanning of the part contour. The spray gun moves along the trajectory of the robotic arm, always spraying paint at the best incident angle perpendicular to the part surface or at the angle required by the process. After the painting is completed, leveling and baking processes continue until the final part is unloaded.
[0008] By incorporating rotating and flipping mechanisms, the painting posture of parts can be adjusted in multiple dimensions. The tooling mechanism can flexibly adapt to parts of different shapes and fix them securely. The rotating mechanism drives the parts to rotate horizontally to adjust their circumferential position, while the flipping mechanism drives the painting platform to tilt in multiple directions around the horizontal axis. The two work together to allow irregular parts to be presented to the multi-axis robotic arm in a composite posture with multiple faces and angles. The robotic arm adjusts the position and angle of the spray gun according to a preset program or real-time visual feedback to ensure that the paint evenly covers complex surfaces at the optimal incident angle. This effectively solves the defects of uneven paint film thickness, sagging, and missed spraying caused by the single posture adjustment of traditional devices, improves the stability and efficiency of painting quality, reduces rework costs and material waste, and meets the high-quality painting needs of modern automotive parts.
[0009] Optionally, the number of columns and irregular plates in the flipping mechanism is two sets, and the two sets of columns and irregular plates are symmetrically arranged on both sides of the flipping shaft.
[0010] By adopting the above technical solution, the number of columns and irregular plates in the flipping mechanism is two sets; by setting the number of columns and irregular plates, the torque during the flipping process is effectively balanced through the symmetrical distribution of the mechanical structure, avoiding platform shaking or tilting caused by unilateral force, and improving the stability and accuracy of the tilting movement of the painting platform.
[0011] Optionally, the frame is provided with bearing seats for mounting the flip shaft, and the two bearing seats are respectively located at both ends of the length direction of the flip shaft, and the flip shaft is rotatably connected to the two bearing seats.
[0012] By adopting the above technical solution, the tilting shaft is mounted on the frame through a bearing housing; the bearing housing provides a stable rotational foundation for the tilting shaft, effectively reducing mechanical wear during rotation and ensuring uniform force distribution on the tilting shaft.
[0013] Optionally, the tooling mechanism includes a turntable and several clamping block assemblies. The turntable has a workpiece positioning cavity at its center, and the several clamping block assemblies are evenly distributed along the circumference of the turntable.
[0014] By adopting the above technical solution, the tooling mechanism includes a turntable and several clamping block assemblies, with a workpiece positioning cavity opened at the center of the turntable; the tooling mechanism effectively solves the problem of fixing irregular automotive parts and can flexibly adapt to parts of different sizes and shapes.
[0015] Optionally, the clamping block assembly includes an L-shaped block and a locking bolt. The turntable has a sliding groove, and the bottom of the L-shaped block has a protrusion for sliding cooperation with the sliding groove. The locking bolt passes through the L-shaped block and abuts against the bottom wall of the sliding groove.
[0016] By adopting the above technical solution, the clamping block assembly includes an L-shaped block and a locking bolt. The protrusion is integrally formed at the bottom of the L-shaped block, and the slide groove is opened on the turntable. Through the setting of the clamping block assembly, the irregular automotive parts are efficiently fixed. The overall operation is convenient. The sliding-adjustment-locking process simplifies the clamping steps, improves the clamping efficiency, and provides a stable foundation for subsequent uniform spraying.
[0017] Optionally, a flexible anti-slip pad is provided on the L-shaped block, and the flexible anti-slip pad is arranged on the contact surface of the L-shaped block.
[0018] By adopting the above technical solution, the flexible anti-slip pad is glued and fixed on the L-shaped block. Through the setting of the flexible anti-slip pad, the flexible material adheres to the surface of the parts, which effectively enhances the clamping friction and ensures the stability of the spraying posture. At the same time, the flexible anti-slip pad avoids hard contact between the L-shaped block and the parts, effectively preventing surface scratches and protecting the appearance quality of the parts.
[0019] Optionally, a liquid leakage hole is provided through the bottom of the workpiece positioning cavity, and the number of the liquid leakage holes is multiple.
[0020] By adopting the above technical solution, multiple drainage holes are opened at the bottom of the workpiece positioning cavity; the drainage holes can promptly drain excess paint during the spraying process, preventing liquid from accumulating in the positioning cavity and reducing the possibility of uneven paint film thickness or sagging caused by paint accumulation.
[0021] Optionally, the rotating mechanism includes a rotating shaft, a driving pulley, a driven pulley, a belt, and a rotary motor. The rotating shaft is rotatably connected to the painting platform, the turntable is connected to the end of the rotating shaft, the driven pulley is sleeved on the rotating shaft, the rotary motor is arranged inside the painting platform, the driving pulley is connected to the output end of the rotary motor, and the two ends of the belt are respectively tensioned on the driving pulley and the driven pulley. A tensioning wheel for tensioning is also provided inside the painting platform, and the tensioning wheel is connected to the outside of the belt.
[0022] By adopting the above technical solution, the rotating mechanism includes a rotating shaft, a driving pulley, a driven pulley, a belt, and a rotating motor. The rotating mechanism enables stable horizontal rotation drive of the paint spraying platform turntable, adjusts the circumferential position of the parts, and provides a basis for the subsequent tilting mechanism to adjust the platform tilt angle, thereby improving the uniformity of spraying on complex curved parts and ensuring the quality of the paint film.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Through the use of rotating and flipping mechanisms, multi-dimensional adjustment of the spraying posture of parts is achieved. The tooling mechanism can flexibly adapt to parts of different shapes and fix them firmly. The rotating mechanism drives the parts to rotate horizontally to adjust their circumferential position, and the flipping mechanism drives the painting platform to tilt in multiple directions around the horizontal axis. The two work together to allow irregular parts to be presented to the multi-axis robotic arm in a composite posture with multiple faces and angles. The robotic arm adjusts the position and angle of the spray gun according to the preset program or real-time visual feedback to ensure that the paint uniformly covers the complex surface with the best incident angle. This effectively solves the defects of uneven paint film thickness, sagging, and missed spraying caused by the single posture adjustment of traditional devices, improves the stability and efficiency of spraying quality, reduces rework costs and material waste, and meets the high-quality spraying needs of modern automotive parts.
[0025] 2. The tooling mechanism effectively solves the problem of fixing irregular automotive parts and can flexibly adapt to parts of different sizes and shapes;
[0026] 3. By setting up a rotating mechanism, a stable horizontal rotation drive is achieved for the paint spraying platform turntable, adjusting the circumferential position of the parts. At the same time, it provides a basis for the subsequent tilting mechanism to adjust the platform tilt angle, improving the uniformity of spraying complex curved parts and ensuring the quality of the paint film. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of an automotive parts painting device according to an embodiment of this application.
[0028] Figure 2 This is a structural schematic diagram used to illustrate the tooling mechanism in the embodiments of this application.
[0029] Figure 3 This is a structural schematic diagram illustrating the rotating mechanism in the embodiments of this application.
[0030] Explanation of reference numerals in the attached drawings: 1. Painting platform; 2. Multi-axis robotic arm; 3. Tooling mechanism; 31. Turntable; 32. Clamping block assembly; 321. L-shaped block; 322. Locking bolt; 4. Rotation mechanism; 41. Rotation shaft; 42. Driving pulley; 43. Driven pulley; 44. Belt; 45. Rotary motor; 5. Frame; 6. Tilting mechanism; 61. Tilting shaft; 62. Irregular plate; 63. Column; 64. Servo motor; 7. Shaft connector; 8. Bearing seat; 9. Workpiece positioning cavity; 10. Slide groove; 11. Protrusion; 12. Flexible anti-slip pad; 13. Leakage hole; 14. Tensioning wheel. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0032] This application discloses an apparatus for painting automotive parts. (Refer to...) Figure 1 The automotive parts painting device includes a painting platform 1 and a multi-axis robotic arm 2. In this embodiment, the multi-axis robotic arm 2 is equipped with a spray gun for painting. The multi-axis robotic arm 2 can adjust the position and angle of the spray gun according to a preset program or real-time visual feedback such as a 3D camera scanning the outline of the parts.
[0033] Reference Figure 1 and Figure 2 The painting platform 1 is equipped with a tooling mechanism 3, which includes a turntable 31 and several clamping block assemblies 32. A rotating mechanism 4 is installed inside the painting platform 1 to drive the turntable 31 to rotate. A workpiece positioning cavity 9 is opened in the center of the turntable 31. In this embodiment, automotive parts can be loaded into the workpiece positioning cavity 9. Several clamping block assemblies 32 are evenly distributed along the circumference of the turntable 31. Preferably, the number of clamping block assemblies 32 is three sets. The tooling mechanism 3 effectively solves the problem of fixing irregular automotive parts and can flexibly adapt to parts of different sizes and shapes.
[0034] Reference Figure 1 and Figure 2 The bottom of the workpiece positioning cavity 9 is provided with a liquid leakage hole 13, and there are multiple liquid leakage holes 13. The liquid leakage holes 13 can drain excess paint during the spraying process in a timely manner, avoid liquid accumulation in the workpiece positioning cavity 9, and reduce the possibility of uneven paint film thickness or sagging caused by paint accumulation.
[0035] Reference Figure 1 and Figure 2 The clamping block assembly 32 includes an L-shaped block 321 and a locking bolt 322. The turntable 31 has a sliding groove 10. In this embodiment, the number of sliding grooves 10 is the same as the number of L-shaped blocks 321. The bottom of the L-shaped block 321 is integrally formed with a protrusion 11, which is slidably connected in the corresponding sliding groove 10. At the same time, the locking bolt 322 passes through the L-shaped block 321 and abuts against the bottom wall of the corresponding sliding groove 10. The clamping block assembly 32 realizes efficient fixing of irregular automotive parts. The overall operation is convenient. The sliding-adjustment-locking process simplifies the clamping steps, improves the clamping efficiency, and provides a stable foundation for subsequent uniform spraying.
[0036] Reference Figure 1 and Figure 2 A flexible anti-slip pad 12 is glued to the L-shaped block 321. The flexible anti-slip pad 12 is arranged on the contact surface of the L-shaped block 321. In this embodiment, the flexible anti-slip pad 12 can be made of rubber material. By adhering the flexible material to the surface of the component, the friction of clamping is effectively enhanced, ensuring the stability of the spraying posture. At the same time, the flexible anti-slip pad 12 avoids hard contact between the L-shaped block 321 and the component, effectively preventing surface scratches and protecting the appearance quality of the component.
[0037] Reference Figure 1 and Figure 3 The rotating mechanism 4 includes a rotating shaft 41, a driving pulley 42, a driven pulley 43, a belt 44, and a rotating motor 45. The rotating shaft 41 is rotatably mounted on the painting platform 1 through bearings, and the rotating shaft 41 is vertically mounted along the height direction of the painting platform 1. The bottom end of the turntable 31 is fixedly mounted on the end of the rotating shaft 41, and the driven pulley 43 is sleeved and fixed on the rotating shaft 41.
[0038] Reference Figure 1 and Figure 3The rotary motor 45 is installed inside the painting platform 1, the drive pulley 42 is installed on the output end of the rotary motor 45, and the two ends of the belt 44 are respectively tensioned on the drive pulley 42 and the driven pulley 43. At the same time, a tensioning wheel 14 for tensioning is also rotatably installed inside the painting platform 1, and the tensioning wheel 14 is connected to the outside of the belt 44. The rotary mechanism 4 realizes the stable horizontal rotation drive of the turntable 31 of the painting platform 1, adjusts the circumferential position of the parts, and provides a basis for the subsequent tilting mechanism 6 to adjust the tilt angle of the platform, thereby improving the uniformity of spraying of complex curved parts and ensuring the quality of the paint film.
[0039] Reference Figure 1 A frame 5 is installed below the spray painting platform 1. The spray painting platform 1 is located on the frame 5. A flipping mechanism 6 is installed on the frame 5. The flipping mechanism 6 includes a flipping shaft 61, a shaped plate 62, a column 63 and a servo motor 64. In this embodiment, two sets of bearing seats 8 are installed on the frame 5. The two bearing seats 8 are located at both ends of the length direction of the flipping shaft 61. The flipping shaft 61 rotates and is connected to the two bearing seats 8 through the bearing rotation.
[0040] Reference Figure 1 and Figure 2 The painting platform 1 is equipped with shaft connectors 7 for connecting to the tilting shaft 61. There are multiple shaft connectors 7. At the same time, the servo motor 64 is mounted on the frame 5. The output end of the servo motor 64 is connected to the end of the tilting shaft 61. The servo motor 64 can achieve forward and reverse rotation. The servo motor 64 drives the tilting shaft 61 to rotate slowly with a small amplitude. For example, for parts with grooves, the platform can tilt forward 30° so that the groove opening faces upward. The robotic arm spray gun sprays vertically at the bottom of the groove to avoid paint mist accumulating at the groove opening. For curved surfaces, the platform can tilt backward 15° so that the curved surface and the spray gun have the best incident angle to ensure uniform paint film coverage. For corner parts, the platform tilts so that the side of the corner faces the spray gun to avoid missed spraying.
[0041] Reference Figure 1 One end of the irregularly shaped plate 62 is fitted onto the flipping shaft 61, and one end of the column 63 is hinged to the end of the irregularly shaped plate 62 away from the flipping shaft 61. The other end of the column 63 is hinged to the frame 5. In this embodiment, the number of columns 63 and irregularly shaped plates 62 in the flipping mechanism 6 is one set, or the number of columns 63 and irregularly shaped plates 62 in the flipping mechanism 6 is also two sets. The two sets of columns 63 and irregularly shaped plates 62 are symmetrically arranged on both sides of the flipping shaft 61. Through the symmetrically distributed mechanical structure, the torque during the flipping process is effectively balanced, avoiding platform shaking or tilting caused by unilateral force, and improving the stability and accuracy of the tilting movement of the painting platform 1.
[0042] The implementation principle of the automotive parts painting device in this application embodiment is as follows: When painting automotive parts, the bottom of the parts is inserted into the workpiece positioning cavity 9 of the turntable 31. The position is initially constrained by the contour of the positioning cavity. According to the size of the parts, the L-shaped blocks 321 evenly distributed around the circumference of the sliding turntable 31 are slid. The bottom protrusion 11 cooperates with the sliding groove 10, so that the contact surface of the L-shaped blocks 321 fits against the edge of the parts. The locking bolts 322 are tightened to fix the L-shaped blocks 321. According to the process requirements, the parts can be pre-treated by external equipment such as cleaning, flame treatment, and electrostatic dust removal. Through the cooperation of the rotating mechanism 4 and the flipping mechanism 6, the platform posture is adjusted so that irregular parts are presented to the robotic arm at multiple angles. The rotating motor 45 drives the drive pulley 42, The belt 44 and driven pulley 43 drive the rotating shaft 41, which in turn drives the turntable 31 and the parts to rotate horizontally. The rotating mechanism 6 adjusts the circumferential position of the parts. The servo motor 64 drives the rotating shaft 61 to rotate. The irregular plates 62 sleeved at both ends of the rotating shaft 61 rotate with the shaft. The column 63 converts the rotational motion into the tilting motion of the painting platform 1. The platform tilts around the horizontal axis. After the platform is adjusted to the target posture, the multi-axis robotic arm 2 adjusts the position and angle of the spray gun according to the preset program or real-time visual feedback such as 3D camera scanning of the part contour. The spray gun moves along the trajectory of the robotic arm and always sprays paint at the best incident angle, perpendicular to the surface of the part or at the angle required by the process. After the painting is completed, the leveling and baking processes continue until the final part is unloaded.
[0043] Through the rotation mechanism 4 and the flipping mechanism 6, multi-dimensional adjustment of the spraying posture of parts is achieved. The tooling mechanism 3 can flexibly adapt to parts of different shapes and fix them firmly. The rotation mechanism 4 drives the parts to rotate horizontally to adjust their circumferential position. The flipping mechanism 6 drives the painting platform 1 to tilt in multiple directions around the horizontal axis. The two work together to allow irregular parts to be presented to the multi-axis robotic arm 2 in a composite posture with multiple faces and angles. The robotic arm adjusts the position and angle of the spray gun according to the preset program or real-time visual feedback to ensure that the paint uniformly covers the complex surface with the best incident angle. This effectively solves the defects of uneven paint film thickness, sagging, and missed spraying caused by the single posture adjustment of traditional devices. It improves the stability and efficiency of spraying quality, reduces rework costs and material waste, and meets the high-quality spraying needs of modern automotive parts.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A painting apparatus for automotive parts, comprising a painting platform and a multi-axis robotic arm, characterized in that: The painting platform is equipped with a tooling mechanism, and a rotating mechanism is installed inside the painting platform. A frame is installed below the painting platform, and a tilting mechanism is installed on the frame. The tilting mechanism includes a tilting shaft, a shaped plate, a column, and a servo motor. Both ends of the tilting shaft are rotatably connected to the frame, and the output end of the servo motor is connected to the end of the tilting shaft. The painting platform is equipped with a shaft connector for connecting to the tilting shaft. One end of the shaped plate is sleeved on the tilting shaft, one end of the column is hinged to the end of the shaped plate away from the tilting shaft, and the other end of the column is hinged to the frame.
2. The automotive parts painting device according to claim 1, characterized in that: The flipping mechanism consists of two sets of columns and irregularly shaped plates, which are symmetrically arranged on both sides of the flipping shaft.
3. The automotive parts painting device according to claim 1, characterized in that: The frame is provided with bearing seats for mounting the flip shaft. The two bearing seats are located at both ends of the length direction of the flip shaft, and the flip shaft is rotatably connected to the two bearing seats.
4. The automotive parts painting device according to claim 1, characterized in that: The tooling mechanism includes a turntable and several clamping block assemblies. The turntable has a workpiece positioning cavity at its center, and the clamping block assemblies are evenly distributed along the circumference of the turntable.
5. The automotive parts painting device according to claim 4, characterized in that: The clamping block assembly includes an L-shaped block and a locking bolt. The turntable has a sliding groove, and the bottom of the L-shaped block has a protrusion for sliding cooperation with the sliding groove. The locking bolt passes through the L-shaped block and abuts against the bottom wall of the sliding groove.
6. The automotive parts painting device according to claim 5, characterized in that: A flexible anti-slip pad is provided on the L-shaped block, and the flexible anti-slip pad is arranged on the contact surface of the L-shaped block.
7. The automotive parts painting device according to claim 4, characterized in that: The bottom of the workpiece positioning cavity is provided with a through-hole for liquid leakage, and there are multiple such through-holes.
8. The automotive parts painting device according to claim 4, characterized in that: The rotating mechanism includes a rotating shaft, a driving pulley, a driven pulley, a belt, and a rotary motor. The rotating shaft is rotatably connected to the painting platform, the turntable is connected to the end of the rotating shaft, the driven pulley is sleeved on the rotating shaft, the rotary motor is arranged inside the painting platform, the driving pulley is connected to the output end of the rotary motor, and the two ends of the belt are respectively tensioned on the driving pulley and the driven pulley. A tensioning wheel for tensioning is also provided inside the painting platform, and the tensioning wheel is connected to the outside of the belt.