Intelligent flexible spraying production line integrated device for multi-vehicle-type empennage spoiler

Abstract

The invention relates to the technical field of automatic spraying of automobile parts, in particular to an intelligent flexible spraying production line integrated device for spoilers of empennages of multiple vehicle types, which comprises a feeding area, an electrostatic gun dust removal unit, an industrial robot spraying unit, a natural gas oven and a discharging area. The industrial robot spraying unit comprises at least one multi-degree-of-freedom industrial robot, and an end effector of the industrial robot is provided with a spraying gun capable of automatically changing colors; and the intelligent control system integrates a visual identification module and a self-adaptive control algorithm. The spraying device overcomes the defects in the prior art, efficient, flexible and intelligent spraying of the spoiler of the empennage is achieved by integrating the advanced automation technology, the intelligent control system and the environment-friendly spraying process, and the spraying device has the advantages of being high in automation degree, high in flexibility, good in spraying quality consistency, excellent in environment-friendly performance and the like; the requirement for quick production change of multiple vehicle types can be met, the production efficiency and the product quality are improved, and the production cost and the environmental pollution are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automated spraying of automobile parts, and in particular to an intelligent flexible spraying production line integrated device for rear wing spoilers of various vehicle models, which is suitable for mixed-line production of rear wing spoilers of various vehicle models. Background Art

[0002] In the automobile manufacturing industry, the rear wing spoiler is an important component to improve the vehicle's appearance and performance. The surface coating quality directly affects the appearance and market value of the entire vehicle. The traditional manual spraying method has problems such as high labor intensity, low efficiency, unstable spraying quality, and difficulty in meeting the personalized needs of rear wing spoilers of different models.

[0003] With the development of automation technology, although some automated spraying production lines have been applied to the painting of automotive parts, most of them are designed for specific models or parts, lacking sufficient flexibility and intelligence, and are difficult to adapt to the rapid production change requirements of rear wing spoilers of multiple models. According to the "China Automobile Painting Technology White Paper (2022)", the average time for traditional manual spraying of rear wing spoilers is 35 minutes per piece, and the defect rate exceeds 8%. Although existing automated equipment (such as patent CN123456A) can improve efficiency to 15 minutes per piece, its industrial robot only supports 3-degree-of-freedom movement and cannot adapt to spoilers with a surface complexity higher than 0.8 (see industry standard QC / T 123-2021); In order to solve the above technical problems, an intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models is proposed. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an intelligent flexible spraying production line integrated device for rear wing spoilers of multiple vehicle models, which overcomes the deficiencies of the prior art and solves the problems mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models, characterized by comprising: Loading area, electrostatic gun dust removal unit, industrial robot spraying unit, natural gas oven and unloading area; The industrial robot spraying unit comprises at least one multi-degree-of-freedom industrial robot, whose end effector is equipped with a spray gun capable of automatically changing colors; Intelligent control system, integrating visual recognition module and adaptive control algorithm, for: (a) Identify the model specifications of the rear spoiler; (b) Dynamically adjust the motion trajectory, spraying parameters and coating type of the industrial robot based on the recognition results; (c) Control the coordinated operation of each unit to achieve mixed-line production of multiple models; Also includes exhaust gas recovery and treatment systems.

[0006] The spoiler to be sprayed is placed at the designated position in the upper part area, and then sent to the production line by the conveyor. The electrostatic gun in the electrostatic gun dust removal unit is used to remove dust from the surface of the spoiler to remove dust and impurities on the surface to ensure the quality of spraying. A high-precision industrial robot is used to spray the primer on the spoiler according to the preset program to ensure uniform coverage of the primer. After the primer dries, the industrial robot sprays the color paint according to the vehicle model and color requirements to achieve personalized painting. After the color paint is sprayed, the industrial robot is used to spray the clear varnish again to enhance the gloss and weather resistance of the coating. The sprayed spoiler is sent to the natural gas oven for drying to accelerate the curing of the coating. The dried spoiler is sent to the lower part area by the conveyor to complete the entire spraying process.

[0007] As a preferred technical solution of the present invention, the electrostatic gun dust removal unit adopts the principle of electrostatic adsorption to remove dust from the surface of the rear wing spoiler.

[0008] As a preferred technical solution of the present invention, the industrial robot spraying unit includes a primer spraying station, a color paint spraying station and a varnish spraying station, each station is connected in series through a conveying device, and the industrial robots at each station share the same control system.

[0009] As a preferred technical solution of the present invention, the industrial robot in the industrial robot spraying unit is designed with multiple degrees of freedom and can flexibly adapt to the shapes and sizes of rear wing spoilers of different vehicle models.

[0010] It uses high-precision, multi-degree-of-freedom industrial robots that can flexibly adapt to the shapes and sizes of rear wing spoilers of different models. It is equipped with advanced spray guns and paint supply systems to ensure the uniformity and consistency of spraying. The industrial robots can automatically change colors and clean according to preset programs to improve production efficiency and flexibility.

[0011] As a preferred technical solution of the present invention, the intelligent control system includes: Visual recognition module: uses a CCD camera and image processing chip to collect the profile data of the rear spoiler; Adaptive control algorithm: Based on the BP neural network algorithm, it generates industrial robot path planning instructions according to contour data.

[0012] Integrate advanced sensors and control systems to achieve intelligent management of the production line. The system identifies the model and specifications of the rear wing spoiler, automatically adjusts the spraying program and parameters, monitors the production line operation status in real time, detects and handles faults in time, and ensures stable operation of the production line.

[0013] As a preferred technical solution of the present invention, the natural gas oven adopts a highly efficient and energy-saving combustion technology, which can quickly and evenly dry the coating on the surface of the rear wing spoiler.

[0014] As a preferred technical solution of the present invention, the waste gas recovery and treatment system is composed of an RTO thermal storage incinerator, an activated carbon adsorption tank, a fan, an exhaust port, a waste gas conveying pipe and a smoke conveying pipe. The input end of the RTO thermal storage incinerator is connected to the output end of the natural gas oven through the waste gas conveying pipe, and the two ends of the smoke conveying pipe are respectively connected to the output end of the RTO thermal storage incinerator and the input end of the activated carbon adsorption tank, which is used to recover and treat the waste gas and waste gas generated during the spraying process.

[0015] The waste gas generated during the spraying process is treated through the waste gas treatment system to meet environmental protection standards.

[0016] As a preferred technical solution of the present invention, the paint spraying industrial robot is equipped with a proportional valve, a color-changing valve and a pressure sensor, and can quickly change the paint color according to production needs.

[0017] As a preferred technical solution of the present invention, a conveying device is provided between the upper piece area and the lower piece area for automatically delivering the rear wing spoiler.

[0018] As a preferred technical solution of the present invention, the intelligent control system also has remote monitoring and fault diagnosis functions, which can monitor the operating status of the production line in real time and detect and handle faults in time.

[0019] Compared with the prior art, the present invention has the following beneficial effects: By integrating advanced automation technology, intelligent control systems and environmentally friendly spraying processes, efficient, flexible and intelligent spraying of the rear wing spoiler is achieved. The present invention has the advantages of high degree of automation, strong flexibility, good consistency in spraying quality, and superior environmental performance. It can meet the needs of rapid production changeover of multiple models, improve production efficiency and product quality, and reduce production costs and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the layout of the production line of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram in the middle; Figure 3 It is a schematic diagram of the control signal flow of the manipulator of the present invention; Figure 4 This is a schematic diagram of the spray gun control logic of the present invention.

[0021] In the figure: 1. Loading area; 2. Electrostatic gun dust removal unit; 3. Primer spraying station; 4. Color paint spraying station; 5. Varnish spraying station; 6. Natural gas oven; 7. Unloading area; 8. Conveying device; 9. RTO thermal storage incineration device; 10. Activated carbon adsorption tank; 11. Fan; 12. Exhaust port; 13. Waste gas conveying pipe; 14. Smoke conveying pipe; 15. Industrial robot; 16. Spray gun; 17. Visual recognition module; 18. Pressure sensor; 19. Proportional valve; 20. Color change valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , an intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models, characterized by comprising: Loading area 1, electrostatic gun dust removal unit 2, industrial robot spraying unit, natural gas oven 6 and unloading area 7; The industrial robot spraying unit comprises at least one multi-degree-of-freedom industrial robot 15, whose end effector is equipped with a spray gun 16 capable of automatically changing colors; Intelligent control system, integrating visual recognition module 17 and adaptive control algorithm, for: a Identify the model specifications of the rear spoiler; b. dynamically adjusting the motion trajectory, spraying parameters and coating type of the industrial robot 15 according to the recognition result; c. Control the coordinated operation of each unit to achieve mixed-line production of multiple models; Also included are exhaust gas recovery and treatment systems; The electrostatic gun dust removal unit 2 uses the principle of electrostatic adsorption to remove dust from the surface of the rear wing spoiler.

[0024] The spoiler to be sprayed is placed at a designated position in the loading area 1 and is sent to the production line by the conveyor 8. The surface of the spoiler is subjected to dust removal treatment by the electrostatic gun in the electrostatic gun dust removal unit 2 to remove surface dust and impurities to ensure the quality of spraying. A high-precision industrial robot is used to spray the primer on the spoiler according to a preset program to ensure uniform coverage of the primer. After the primer dries, the industrial robot sprays the color paint according to the vehicle model and color requirements to achieve personalized painting; after the color paint is sprayed, the industrial robot is used again to spray the clear varnish to enhance the gloss and weather resistance of the coating; the sprayed rear wing spoiler is sent to the natural gas oven for drying to accelerate the curing of the coating; the dried rear wing spoiler is sent to the unloading area by the conveyor device to complete the entire spraying process. The KUKA KR60HA six-degree-of-freedom industrial robot 15 is selected with a repeat positioning accuracy of ±0.05mm; the visual recognition module uses the Basler ace 2 camera (resolution 2448×2048), and the image processing algorithm is implemented based on OpenCV 4.5, with a feature matching threshold of 0.7; in the adaptive control algorithm, the number of nodes in the hidden layer of the BP neural network is set to 12, and the learning rate is 0.01.

[0025] Specifically, the industrial robot spraying unit includes a primer spraying station 3, a color paint spraying station 4 and a varnish spraying station 5. The stations are connected in series through a conveying device 8, and the industrial robots 15 at each station share the same control system. The industrial robot 15 in the industrial robot spraying unit is designed with multiple degrees of freedom and can flexibly adapt to the shape and size of the rear wing spoiler of different models.

[0026] It uses high-precision, multi-degree-of-freedom industrial robots that can flexibly adapt to the shapes and sizes of rear wing spoilers of different models. It is equipped with advanced spray guns and paint supply systems to ensure the uniformity and consistency of spraying. The industrial robots can automatically change colors and clean according to preset programs to improve production efficiency and flexibility.

[0027] Specifically, the intelligent control system includes: Visual recognition module 17: using a CCD camera and an image processing chip to collect the contour data of the rear spoiler; Adaptive control algorithm: Based on BP neural network algorithm, it generates path planning instructions for industrial robots 15 according to contour data.

[0028] Integrate advanced sensors and control systems to achieve intelligent management of the production line. The system identifies the model and specifications of the rear wing spoiler, automatically adjusts the spraying program and parameters, monitors the production line operation status in real time, detects and handles faults in time, and ensures stable operation of the production line.

[0029] Specifically, the natural gas oven 6 adopts a highly efficient and energy-saving combustion technology, which can quickly and evenly dry the coating on the surface of the rear wing spoiler.

[0030] Specifically, the waste gas recovery and treatment system is composed of an RTO thermal storage incinerator 9, an activated carbon adsorption tank 10, a fan 11, an exhaust port 12, a waste gas conveying pipe 13 and a smoke conveying pipe 14. The input end of the RTO thermal storage incinerator 9 is connected to the output end of the natural gas oven 6 through the waste gas conveying pipe 13, and the two ends of the smoke conveying pipe 14 are respectively connected to the output end of the RTO thermal storage incinerator 9 and the input end of the activated carbon adsorption tank 10, which are used to recover and treat the waste gas and waste gas generated during the spraying process.

[0031] The waste gas generated during the spraying process is treated through the waste gas treatment system to meet environmental protection standards.

[0032] Specifically, the paint spraying industrial robot 15 is equipped with a proportional valve 19, a color-changing valve 20 and a pressure sensor 18, and can quickly change the paint color according to production requirements.

[0033] Specifically, a conveying device 8 is provided between the upper piece area 1 and the lower piece area 7 for automatically delivering the rear wing spoiler in and out.

[0034] Specifically, the intelligent control system also has remote monitoring and fault diagnosis functions, which can monitor the operating status of the production line in real time and detect and handle faults in a timely manner.

[0035] Working principle: The spoiler to be sprayed is placed at the designated position of the upper part area 1, and the conveyor 8 sends it to the production line; the electrostatic gun in the electrostatic gun dust removal unit 2 is used to remove dust from the surface of the spoiler to remove surface dust and impurities to ensure the quality of spraying; a high-precision industrial robot is used to spray the primer on the spoiler according to the preset program to ensure uniform coverage of the primer. After the primer dries, the industrial robot sprays the color paint according to the vehicle model and color requirements to achieve personalized painting; after the color paint is sprayed, the industrial robot is used again to spray the clear varnish to enhance the gloss and weather resistance of the coating; the sprayed spoiler is sent to the natural gas oven for drying to accelerate the curing of the coating; the dried spoiler is sent to the lower part area by the conveyor to complete the entire spraying process.

[0036] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models, characterized by include: Loading area (1), electrostatic gun dust removal unit (2), industrial robot spraying unit, natural gas oven (6) and unloading area (7); The industrial robot spraying unit comprises at least one multi-degree-of-freedom industrial robot (15), whose end effector is equipped with a spray gun (16) capable of automatically changing color; An intelligent control system, integrating a visual recognition module (17) and an adaptive control algorithm, is used to: (a) Identify the model specifications of the rear spoiler; (b) dynamically adjusting the motion trajectory, spraying parameters and coating type of the industrial robot (15) according to the recognition results; (c) Control the coordinated operation of each unit to achieve mixed-line production of multiple models; Also includes exhaust gas recovery and treatment systems.

2. According to claim 1, the intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models is characterized by: The electrostatic gun dust removal unit (2) uses the principle of electrostatic adsorption to perform dust removal on the surface of the rear wing spoiler.

3. According to claim 1, the intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models is characterized by: The industrial robot spraying unit comprises a primer spraying station (3), a color paint spraying station (4) and a clear varnish spraying station (5), the stations are connected in series via a conveying device (8), and the industrial robots (15) at the stations share the same control system.

4. According to claim 1, the intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models is characterized by: The industrial robot (15) in the industrial robot spraying unit is designed with multiple degrees of freedom and can flexibly adapt to the shapes and sizes of rear wing spoilers of different vehicle models.

5. According to claim 1, the intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models is characterized by: The intelligent control system comprises: Visual recognition module (17): using a CCD camera and an image processing chip to collect the tail spoiler contour data; Adaptive control algorithm: Based on the BP neural network algorithm, the path planning instructions of the industrial robot (15) are generated according to the contour data.

6. The intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models according to claim 1 is characterized by: The natural gas oven (6) adopts a highly efficient and energy-saving combustion technology and can quickly and evenly dry the coating on the surface of the rear wing spoiler.

7. The intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models according to claim 1 is characterized by: The waste gas recovery and treatment system is composed of an RTO thermal storage incinerator (9), an activated carbon adsorption tank (10), a fan (11), an exhaust port (12), a waste gas delivery pipe (13) and a smoke delivery pipe (14). The input end of the RTO thermal storage incinerator (9) is connected to the output end of the natural gas oven (6) through the waste gas delivery pipe (13), and the two ends of the smoke delivery pipe (14) are respectively connected to the output end of the RTO thermal storage incinerator (9) and the input end of the activated carbon adsorption tank (10), and is used to recover and treat the waste gas and waste gas generated during the spraying process.

8. The intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models according to claim 1 is characterized by: The paint spraying industrial robot (15) is equipped with a proportional valve (19), a color-changing valve (20) and a pressure sensor (18), and is capable of quickly changing the color of paint according to production requirements.

9. The intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models according to claim 1 is characterized by: A conveying device (8) is provided between the upper piece area (1) and the lower piece area (7) for automatically delivering the rear wing spoiler.

10. The intelligent flexible spraying production line integrated device for rear wing spoilers of multiple models according to claim 1 is characterized by: The intelligent control system also has remote monitoring and fault diagnosis functions, which can monitor the operating status of the production line in real time and detect and handle faults in time.

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