Intelligent spot painting system and processing method thereof

Abstract

The application discloses an intelligent paint dotting system and a processing method thereof. The system comprises a platform component, a collection component and a paint dotting component. The platform component is suitable for horizontally placing a workpiece, and a track groove is formed in the workpiece. The collection component is arranged above the platform component and is suitable for collecting a planar image of the track groove. The paint dotting component is arranged above the platform component and is suitable for moving along a horizontal plane and spraying paint outward. The input component comprises a track drawing module, and the track drawing module is suitable for drawing a paint dotting track on the planar image of the track groove. The control component is suitable for controlling the paint dotting component to perform paint dotting processing on the workpiece along the paint dotting track. The application has the advantages that a long-service-life and beautiful mark can be formed on a product at low cost.

Description

Technical Field

[0001] This application relates to the field of paint application technology, specifically to an intelligent paint application system and its processing method. Background Technology

[0002] Nowadays, we see logos everywhere in our daily lives. Various manufacturers put logos on their products to help users identify the product and make the product more aesthetically pleasing. For example, in the automotive industry, logos are used very frequently. Not only are corresponding logos placed on the front and rear of the car, but they are also placed on the steering wheel inside the car. These logos are usually placed on the airbag cover inside the steering wheel.

[0003] In existing technologies, the methods for adding markings to products are generally as follows: 1. Displaying the corresponding markings in the form of grooves on the product; 2. Directly spraying paint on the product to form the markings; 3. Producing an additional sign and embedding the sign into the product.

[0004] However, all of the above methods have drawbacks. The markings produced by method 1 are not obvious or aesthetically pleasing enough; the painted markings produced by method 2 are prone to wear and tear during prolonged use, resulting in a short lifespan; and method 3 requires the production of an additional sign, which is costly. Therefore, for those skilled in the art, how to produce products with clear markings while avoiding the aforementioned problems is an urgent issue that needs to be addressed. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent paint application system that can create long-lasting and aesthetically pleasing markings on products at low cost.

[0006] Another objective of this application is to provide a processing method for an intelligent paint application system that is easy to operate and highly efficient.

[0007] To achieve the above objectives, the technical solution adopted in this application is: an intelligent paint dispensing system, including...

[0008] A platform component, on which a workpiece is horizontally placed, and a trajectory groove is provided on the workpiece;

[0009] A data acquisition component is disposed above the platform component and is adapted to acquire a planar image of the trajectory groove;

[0010] A paint-spraying component is disposed above the platform component and is adapted to move along a horizontal plane and to spray paint outwards.

[0011] The input component includes a trajectory drawing module, which is adapted to draw a dotted paint trajectory on a planar image of the trajectory groove;

[0012] A control component, the control component being adapted to control the paint-dispensing component to perform paint-dispensing processing on the workpiece along the paint-dispensing trajectory.

[0013] As a preferred embodiment, the input component further includes a parameter setting module, which is adapted to set the parameter information of the paint dotting trajectory.

[0014] As another preferred embodiment, the intelligent paint application system is integrated on a frame, which includes a base, a body, and a top, from bottom to top. A movable groove is provided between the body and the base. The platform component is horizontally fixed on the base, and the acquisition component is located inside the top, with the acquisition component corresponding vertically to the platform component. The paint application component is horizontally movable within the movable groove.

[0015] Further preferably, the input component and the control component are integrated into a computer, which is electrically connected to a keyboard, mouse, handwriting tablet, control buttons, and display screen; the paint application component includes a nozzle assembly, which is provided with a pressure adjustment structure and an inner diameter adjustment structure, both of which are adapted to adjust the paint application speed of the nozzle assembly; the paint application component also includes a three-axis movement structure, which is adapted to drive the nozzle assembly to move along the X and Y axes on the horizontal plane and along the Z axis on the vertical plane; the acquisition component includes a camera, which is equipped with a photoelectric sensor, and the photoelectric sensor is electrically connected to the computer; the platform component includes a marble base plate.

[0016] This application also provides a processing method for an intelligent paint application system, including the following steps:

[0017] Step 1: Place the workpiece horizontally on the platform component;

[0018] Step 2: Acquire a planar image of the workpiece through the acquisition component and transfer the planar image to the computer. The acquired planar image of the workpiece contains a planar image with a track groove.

[0019] Step 3: Draw the paint dotting trajectory template on the obtained planar image of the trajectory groove using the input component;

[0020] Step 4: Based on the acquired planar image, the control component is adapted to automatically identify the position information of the trajectory groove, and control the paint dispensing component to spray paint in the trajectory groove along the path in the paint dispensing trajectory template, thereby completing the paint dispensing process.

[0021] Step 5: Remove the workpiece that has completed the paint application process from the platform component;

[0022] Step 6: Repeat steps 1, 2, 4, and 5.

[0023] Further optimized, when the computer receives a planar image of the workpiece, the computer will transmit the planar image to the display screen; the method for drawing the paint dotting trajectory template includes: before drawing the paint dotting trajectory, the operator can use the mouse to select an identification area on the display screen that includes the trajectory groove; when drawing the paint dotting trajectory, the operator can use the mouse to click on the display screen to determine the trajectory points, and the computer will automatically generate the connection lines between the trajectory points to form the paint dotting trajectory; and the generated paint dotting trajectory includes multiple trajectory segments, and the operator can input the speed parameters of each trajectory segment through the keyboard to control the movement speed of the paint dotting component on each trajectory segment.

[0024] Further optimization, the method for drawing the paint dotting trajectory includes: setting the trajectory point on the center line of the trajectory groove; when drawing the paint dotting trajectory at the corner of the trajectory groove, the drawing method needs to be adjusted based on the size of the included angle α at the corner: if 0°<α≤90°, the trajectory segment at the corner deviates from the center line of the trajectory groove and tilts towards the side away from the corner; if 90°<α≤180°, the trajectory segment at the corner is collinear with the center line of the trajectory groove.

[0025] Further preferred, the method for drawing the paint dotting trajectory also includes: when drawing the paint dotting trajectory at the end of the trajectory groove, there is a gap between the determined trajectory point and the end edge of the trajectory groove, and the speed parameter of the trajectory support segment set at the end is less than the speed parameter of the trajectory support segment set at the non-end.

[0026] Further preferred, the moving speed of the paint-dispensing component on the non-end track segment is v1, the width of the track groove is w, the depth is h, the painting speed of the paint-dispensing component is a, a = w * h * v2; the distance between the track segment at the end and the edge of the track groove is m, and the length of the track segment is x, the moving speed of the paint-dispensing component on the track segment is v2, v1∶v2=(x+m)∶x.

[0027] Further preferred, when the computer receives a planar image of the workpiece, the control unit will automatically compare the trajectory groove in the planar image with the trajectory groove in the recognition area of ​​each template in the template library. If a paint dotting trajectory template that matches the trajectory groove of the workpiece is found, the control unit will automatically retrieve the template from the template library.

[0028] Compared with the prior art, the beneficial effects of this application are as follows:

[0029] This application employs a technique of forming a nameplate by applying paint to a workpiece with a grooved track. Compared to simply creating grooves on a product, the markings formed by this application are more obvious and aesthetically pleasing. Compared to direct painting, the markings formed by this application have a longer service life. Compared to embedded nameplates, this application can directly form the markings on the product without the need for additional nameplate production, resulting in lower costs. Therefore, this application has the advantage of forming long-lasting and aesthetically pleasing markings on products at low cost. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the paint application system.

[0031] Figure 2 A structural schematic diagram of the paint application system from another angle;

[0032] Figure 3 This is a schematic diagram of the nozzle assembly.

[0033] Figure 4 This is a schematic diagram of the workpiece's structure;

[0034] Figure 5 A scaled-up flowchart of the paint application system.

[0035] Figure 6 This is a schematic diagram of the computer's structure;

[0036] Figure 7 A schematic diagram of one embodiment of paint application trajectory;

[0037] Figure 8 A schematic diagram of one embodiment of paint application trajectory;

[0038] Figure 9 A schematic diagram of one embodiment of paint application trajectory;

[0039] Figure 10 A schematic diagram of one embodiment of the paint application trajectory.

[0040] Figure 11 A cross-sectional view of a component being painted;

[0041] Figure 12 This is a schematic diagram of the trajectory groove structure;

[0042] Figure 13 This is an enlarged schematic diagram of the paint application path.

[0043] In the diagram: 1. Painting system; 11. Platform component; 12. Acquisition component; 13. Painting component; 131. Nozzle assembly; 132. Lead screw assembly; 133. Motor assembly; 134. Slide rail assembly; 14. Input component; 15. Control component; 16. Frame; 161. Base; 162. Body; 163. Top; 164. Movable groove; 17. Computer; 18. Display screen; 19. Control button; 2. Workpiece; 21. Track groove; 3. Painting trajectory. Detailed Implementation

[0044] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0045] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0046] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0047] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0048] In the existing technology, the methods for adding markings to products are generally as follows: 1. Displaying the corresponding markings in the form of grooves on the product; 2. Directly spraying paint on the product to form the markings; 3. Producing an additional sign and embedding the sign into the product.

[0049] However, all of the above methods have drawbacks. The markings produced by method 1 are not obvious or aesthetically pleasing enough; the painted markings produced by method 2 are prone to wear and tear during prolonged use, resulting in a short lifespan; and method 3 requires the production of an additional sign, which is costly. Therefore, for those skilled in the art, how to produce products with clear markings while avoiding the aforementioned problems is an urgent issue that needs to be addressed.

[0050] To solve the above technical problems, such as Figures 1-13 As shown, the preferred embodiment of this application is as follows:

[0051] A smart paint application system 1, comprising

[0052] Platform component 11, on which workpiece 2 is horizontally placed, and workpiece 2 is provided with a track groove 21;

[0053] Acquisition component 12 is disposed above platform component 11 and is adapted to acquire planar images of trajectory groove 21;

[0054] The paint dispensing component 13 is disposed above the platform component 11 and is adapted to move along the horizontal plane and to spray paint outward.

[0055] Input component 14 includes a trajectory drawing module, which is adapted to draw dotted paint trajectory 3 on a planar image of trajectory groove 21;

[0056] The control component 15 is adapted to control the paint dispensing component 13 to perform paint dispensing processing on the workpiece 2 along the paint dispensing trajectory 3.

[0057] This application employs a technique of forming a nameplate by dotting paint on a workpiece 2 with a groove 21. Compared with simply creating a groove on the product, the mark formed by this application is more obvious and aesthetically pleasing. Compared with direct painting, the mark formed by this application has a longer service life. Compared with embedded nameplates, this application can directly form the mark on the product without the need for additional nameplate production, resulting in lower costs. Therefore, this application has the advantage of forming a long-lasting and aesthetically pleasing mark on the product at low cost.

[0058] It is worth mentioning that the input component 14 of this application includes a trajectory drawing module. This structure allows the user to draw the corresponding paint dotting trajectory 3 according to the specific shape of the trajectory groove 21 on the workpiece 2, making this application suitable for forming various types of markings. Furthermore, the drawing function effectively ensures the matching between the paint dotting trajectory 3 and the trajectory groove 21, thereby effectively avoiding paint overflow and non-painting phenomena. Further, in this embodiment, the input component 14 also includes a parameter setting module, which is suitable for setting the parameter information of the paint dotting trajectory 3. This structure allows the user not only to manually draw the paint dotting trajectory 3, but also to manually set various parameters when the paint dotting component 13 moves along the paint dotting trajectory 3, allowing the user to set the paint dotting trajectory 3 more flexibly, thereby further improving the matching between the paint dotting trajectory 3 and the trajectory groove 21.

[0059] In addition, the reason for placing the workpiece 2 horizontally is as follows: 1. Since this application uses the dotting technology, and paint has fluidity, horizontal placement can effectively prevent the paint from flowing out of the trajectory groove 21 due to gravity when it is flowing; 2. Horizontal placement can facilitate the acquisition component 12 to collect image information, and the collected image is a planar image, which is convenient for the user to draw the appropriate dotting trajectory 3.

[0060] like Figure 1 and Figure 2 As shown, in this embodiment, the intelligent paint application system 1 is integrated onto a frame 16. The frame 16 includes a base 161, a body 162, and a top 163 from bottom to top. A movable slot 164 is provided between the body 162 and the base 161. The platform component 11 is horizontally fixed on the base 161, and the acquisition component 12 is disposed within the top 163, with the acquisition component 12 corresponding vertically to the platform component 11. The paint application component 13 is horizontally movable within the movable slot 164. The above structure is compact and stable, and the movable slot 164 within the frame 16 provides ample space for the movement of the paint application component 13. The vertical correspondence between the acquisition component 12 and the platform component 11 reliably ensures the acquisition of images of the workpiece 2.

[0061] Furthermore, such as Figure 6 As shown, in this embodiment, the input component 14 and the control component 15 are integrated into the computer 17. The computer 17 is electrically connected to a keyboard, mouse, handwriting tablet, control buttons 19, and a display screen 18. The display screen 18 allows users to easily obtain information, while the keyboard, mouse, and handwriting tablet provide different ways for users to input information, thereby improving the flexibility of user operation. The control buttons 19 are used in conjunction with the control component 15 to control the paint application component 13, making the operation convenient and easy to understand.

[0062] Furthermore, such as Figures 1-3As shown, in this embodiment, the paint dispensing component 13 includes a nozzle assembly 131. The nozzle assembly 131 is provided with a pressure regulating structure and an inner diameter regulating structure, both of which are suitable for adjusting the paint spraying speed of the nozzle assembly 131. These structures are used to adjust the paint ejection speed of the nozzle assembly 131, thereby allowing the paint ejection speed to be finely adjusted to a reasonable range through different combinations, effectively ensuring the overall uniformity of the paint. It is worth noting that although the specific structures of the pressure regulating structure and the inner diameter regulating structure are not shown in the accompanying drawings, these structures are similar to those in the prior art, and the lack of detailed description will not affect the understanding and reproduction of this technical solution by those skilled in the art.

[0063] Furthermore, the paint dispensing component 13 also includes a three-axis moving structure, which is suitable for driving the nozzle assembly 131 to move along the X and Y axes on the horizontal plane and along the Z axis on the vertical plane. The three-axis moving structure includes a lead screw assembly 132, a motor assembly 133, and a slide rail assembly 134. The slide rail assembly 134 is used to realize the movement of the nozzle assembly 131 along the X axis, the lead screw assembly 132 is used to realize the movement of the nozzle assembly 131 along the Y axis, and the motor assembly 133 is used to realize the movement of the nozzle assembly 131 along the Z axis. The above structure is simple and stable, and effectively improves the flexibility of the nozzle assembly 131 during paint dispensing, thereby ensuring that the paint dispensing system 1 of this application is suitable for various types of production requirements.

[0064] Furthermore, such as Figure 2 As shown, in this embodiment, the acquisition component 12 includes a camera, which contains a photoelectric sensor, and the photoelectric sensor is electrically connected to the computer 17. This structure enables more intelligent automatic paint application; the camera can acquire images in real time and transmit them to the computer 17, thereby ensuring the functionality of the computer 17.

[0065] In this embodiment, the platform component 11 includes a base plate made of marble. Because marble has excellent temperature and moisture resistance, it will not deform due to temperature changes or bulge due to humidity changes, thus effectively ensuring the accuracy of processing.

[0066] like Figure 5 As shown, this application also provides a processing method for a set of intelligent paint application systems 1, including the following steps:

[0067] Step 1: Place workpiece 2 horizontally on platform component 11;

[0068] Step 2: Acquire a planar image of workpiece 2 through acquisition component 12 and transmit the planar image to computer 17. The acquired planar image of workpiece 2 contains a planar image of the trajectory groove 21.

[0069] Step 3: Draw the paint dotting trajectory template on the obtained planar image of the trajectory groove 21 using the input component 14;

[0070] Step 4: Based on the acquired planar image, the control component 15 is adapted to automatically identify the position information of the trajectory groove 21 and control the paint application component 13 to spray paint in the trajectory groove 21 along the path in the paint application trajectory template, thereby completing the paint application process.

[0071] Step 5: Remove the workpiece 2, which has undergone the painting process, from platform component 11;

[0072] Step 6: Repeat steps 1, 2, 4, and 5.

[0073] The above method is simple, efficient, and highly automated. Users only need to draw the paint application trajectory template once, and the system will automatically perform the paint application cycle according to the template, which can effectively reduce the user's labor intensity and increase production efficiency.

[0074] Furthermore, in this embodiment, an automatic comparison process can be added before step three: when the computer 17 receives the planar image of the workpiece 2, the control component 15 automatically compares the trajectory groove 21 in the planar image with the trajectory groove 21 in the identification area of ​​each template in the template library. If a paint dotting trajectory template matching the trajectory groove 21 of the workpiece 2 is found, the control component 15 automatically retrieves the template from the template library. The above structure can further enhance the degree of automation. When the user places the workpiece 2 on the platform component 11, the computer 17 automatically performs a comparison. If a corresponding template is previously saved, the computer 17 automatically retrieves the template and performs processing. This eliminates the need for the user to search for the corresponding template in the template library, increases work efficiency, reduces the user's workload, and also enables the simultaneous processing of different types of workpieces 2. When multiple types of workpieces 2 are placed on the platform component 11, the control component 15 will automatically retrieve the corresponding template before controlling the paint dotting component 13 to perform paint dotting processing before processing each workpiece 2. In addition, it can be further configured so that if no matching paint trajectory template is found, the system will automatically jump to the page for drawing paint trajectory templates, thereby conveying the information that a template needs to be drawn to the user.

[0075] Furthermore, in this embodiment, when the computer 17 receives a planar image of the workpiece 2, the computer 17 transmits the planar image to the display screen 18. The method for drawing the paint dotting trajectory template includes: before drawing the paint dotting trajectory 3, the user can use a mouse to select an identification area on the display screen 18 that includes the trajectory groove 21; when drawing the paint dotting trajectory 3, the user can use a mouse to click on the display screen 18 to determine the trajectory points, and the computer 17 will automatically generate the connecting lines between the trajectory points to form the paint dotting trajectory 3; and the generated paint dotting trajectory 3 includes multiple trajectory segments, and the user can input the speed parameters of each trajectory segment through the keyboard to control the movement speed of the paint dotting component 13 on each trajectory segment. After the computer 17 transmits the image to the display screen 18, the user can draw the paint dotting trajectory 3 according to the image information displayed on the display screen 18. Before drawing the paint dotting trajectory 3, a recognition area encompassing the trajectory groove 21 needs to be selected first. This process involves manually dividing the main information area for the computer 17 and removing unnecessary information, thus facilitating the computer 17 to obtain the main comparison information and subsequently obtain the position information of the workpiece 2 through comparison. When drawing the paint dotting trajectory 3, the user can arbitrarily determine the trajectory points with the mouse. Since the paint dotting trajectory 3 is generated by connecting trajectory points, the user can adjust the position of the trajectory points to match the paint dotting trajectory 3 with the trajectory groove 21. In addition, the user can freely input the speed parameters of each trajectory segment to control the movement speed of the paint dotting component 13 on each trajectory segment, thereby controlling the amount of paint dispensed by the paint dotting component 13 on each trajectory segment.

[0076] Furthermore, in this embodiment, the method for drawing the paint dot trajectory 3 includes: setting the trajectory points on the center line of the trajectory groove 21. Setting the trajectory points on the center line of the trajectory groove 21 can effectively ensure the uniform distribution of paint.

[0077] Furthermore, such as Figure 7 and Figure 8As shown, in this embodiment, when encountering a bend, the drawing method can be finely adjusted according to the angle α of the bend. Specifically, if 0° < α ≤ 90°, the trajectory segment at the bend deviates from the center line of the trajectory groove 21 and tilts towards the side away from the bend; if 90° < α ≤ 180°, the trajectory segment at the bend is collinear with the center line of the trajectory groove 21. Because paint has fluidity, and the paint injected at the bend will preferentially flow into the trajectory groove 21, which has not yet been painted and has sufficient internal space, it will lead to difficulty in painting the outer wall of the bend. Furthermore, the inventors of this application have found that the probability of not being painted is related to the angle α at the bend. Specifically, the smaller α is, the greater the degree of bending of the bend, and the greater the degree of deviation between the paint and the outer wall of the bend when flowing into the other section of the trajectory groove 21, thus making it more difficult to paint the outer wall of the bend. Furthermore, the inventors of this application discovered that when 0° < α ≤ 90°, the probability of unpainted areas appearing on the outer wall of the corner is extremely high, while when 0° < α ≤ 90°, the paint application on the side wall of the corner remains normal. Therefore, to solve this technical problem, the inventors of this application adjusted the orientation of the trajectory segment at the corner, deviating it from the centerline and tilting it outwards, thereby adjusting the initial paint injection position to be closer to the outer wall of the corner. Moreover, the tilted trajectory segment has a longer path than the trajectory segment extending along the centerline, thus the paint dispensing component 13 dispenses more paint when passing through this trajectory segment. Therefore, by tilting the trajectory segment at the corner, the inventors of this application can achieve the goal of bringing the initial paint injection position closer to the outer wall of the corner and increasing the amount of paint dispensed in this area, thereby effectively solving the problem of unpainted areas on the outer wall of the corner.

[0078] Furthermore, such as Figure 9 As shown, when encountering a bend in the middle of the trajectory groove 21, symmetrical inclined trajectory branches can be set on both sides at the bend, thereby moving the trajectory branches back to be collinear with the center line of the trajectory groove 21. Furthermore, when moving to another trajectory groove 21, an empty path needs to be set within the paint dispensing trajectory 3, allowing the paint dispensing component 13 to complete the injection position transfer without painting. This effectively avoids path repetition while maintaining the continuity of the overall work, facilitating the drawing of the paint dispensing trajectory template and the determination of specific parameters.

[0079] like Figures 7-10 As shown, in this embodiment, the method for drawing the dotted paint trajectory 3 further includes: when drawing the dotted paint trajectory 3 at the end of the trajectory groove 21, there is a gap between the determined trajectory point and the end edge of the trajectory groove 21. The reason is as follows: Figure 11As shown, the nozzle assembly 131 itself has volume, and the paint does not move vertically downward when it is sprayed from the nozzle assembly 131; it spreads. Therefore, by setting the trajectory point at the end to have a gap with the end edge, the nozzle assembly 131 can effectively prevent the paint from being ejected out of the trajectory groove 21, thus avoiding the product from failing to meet process requirements.

[0080] However, setting the trajectory point at the end with a gap between it and the end edge shortens the movement path of the paint dispensing component 13 in that section, thereby reducing the amount of paint dispensed and affecting the painting of the end sidewall. To address this, the inventors of this application solved the above technical problem through a parameter setting module. Specifically, the speed parameter of the trajectory segment at the end is set lower than the speed parameter of the trajectory segment outside the end. The reason is that a slower speed, i.e., a slower movement speed of the paint dispensing component 13, increases the spraying time of the paint dispensing component 13 in that section, providing more time for paint flow and also increasing the amount of paint dispensed in that section.

[0081] Furthermore, such as Figure 12 and Figure 13 As shown, in this embodiment, the moving speed of the paint-dispensing component 13 on the non-end track segment is v1, the width of the track groove 21 is w, the depth is h, and the spraying speed of the paint-dispensing component 13 is a, where a = w * h * v2. The reasoning process is as follows: Since the amount of paint dispensed by the paint-dispensing component 13 equals the volume of the track groove 21, the following equation can be obtained: w * h * L = a * (L / v1), where the units of w and h are both cm, and the unit of a is cm. 3 / s, v1 is in cm / s, so after simplification, we can get a = w * h * v2.

[0082] Furthermore, in this embodiment, the distance between the trajectory segment at the end and the edge of the trajectory groove 21 is m, and the length of the trajectory segment is x. The moving speed of the paint-dispensing component 13 on the trajectory segment is v2, and v1∶v2=(x+m)∶x. The reasoning process is as follows: Since the purpose of deceleration is to make the amount of paint dispensed on the shortened trajectory segment equal to the required amount of paint for that trajectory segment plus the gap between it and the edge of the trajectory groove 21, the following equation can be obtained: a*(x / v2)=w*h*(x+m). Since w*h*(x+m)=a*((x+m) / v1), therefore, a*(x / v2)=a*((x+m) / v1), where the unit of x is cm and the unit of v2 is cm / s. Therefore, by simplification, we can obtain v1∶v2=(x+m)∶x.

[0083] Specifically, in this embodiment, the w of the trajectory groove 21 is 0.5 cm, the h is 0.6 cm, and the painting speed of the dotting component 13 is set to 21 cm.3 Therefore, by using a = w * h * v2, we can obtain v2 = 70 cm / s. In this embodiment, x = 1 cm and m = 0.4 cm, so by using v1∶v2 = (x + m)∶x, we can obtain v1 = 50 cm / s. Of course, in other embodiments, the specific verticality can be adjusted according to the actual parameters.

[0084] Furthermore, in this embodiment, the processing method also includes an oil discharge speed adjustment step prior to step 1: adjusting the spray speed of the nozzle assembly 131 through a pressure adjustment structure and / or adjusting the orifice diameter of the nozzle assembly 131 through an inner diameter adjustment structure to adjust the amount of paint discharged per unit time. This process is used to pre-adjust the paint discharge speed of the nozzle assembly 131, thereby controlling the paint discharge speed within a reasonable range, which facilitates subsequent processing.

[0085] It is worth mentioning that, in this embodiment, since the airbag cover is made of a soft gel material, it is difficult to apply paint during actual painting. To address this, the inventors of this application will first perform a full-body painting of the airbag cover before painting. This makes the overall appearance smoother, more harmonious, and more aesthetically pleasing. Furthermore, it allows a layer of paint to adhere to the surface of the track groove 21, thus facilitating subsequent painting.

[0086] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A method of processing for an intelligent spot painting system, characterized by: The method comprises the following steps: Step 1: horizontally placing the workpiece on the platform component; Step 2: acquiring a planar image of the workpiece by the acquisition component and transmitting the planar image to the computer, and the acquired planar image of the workpiece contains a planar image of the track groove; Step 3: drawing a point painting track template on the acquired planar image of the track groove by the input component; Step 4: based on the acquired planar image, the control component is adapted to automatically identify the position information of the track groove, and control the point painting component to spray paint in the track groove along the path in the point painting track template, thereby completing the point painting process; Step 5: taking the workpiece after completing the point painting process from the platform component; Step 6: repeating steps 1, 2, 4 and 5; When the computer receives the planar image of the workpiece, the computer will transmit the planar image to the display screen; The method for drawing the point painting track template comprises: before drawing the point painting track, a person can frame an identification area containing the track groove on the display screen by using a mouse; When drawing the point painting track, a person can determine the track points by clicking on the display screen by using the mouse, and the computer automatically generates the connecting lines between the track points, thereby forming the point painting track; the generated point painting track comprises a plurality of track segments, and a person can input the speed parameters of each track segment by using a keyboard, thereby controlling the moving speed of the point painting component on each track segment; the track points are arranged on the center line of the track groove; when drawing the point painting track at the corner of the track groove, the drawing method needs to be adjusted based on the included angle α at the corner: if 0° < α ≤ 90°, the track segment at the corner deviates from the center line of the track groove and is inclined to the side away from the corner; if 90° < α ≤ 180°, the track segment at the corner is collinear with the center line of the track groove.

2. The method of claim 1, wherein: The method for drawing the point painting track further comprises: when drawing the point painting track at the end of the track groove, the determined track points have a gap with the end edge of the track groove, and the speed parameter of the track segment arranged at the end is smaller than the speed parameter of the track segment arranged at the non-end.

3. The method of claim 2, wherein: The moving speed of the point painting component on the non-end track segment is v1, the width of the track groove is w, the depth of the track groove is h, the spraying speed of the point painting component is a, a = w * h * v2; the distance between the track segment arranged at the end and the edge of the track groove is m, and the length of the track segment is x, the moving speed of the point painting component on the track segment is v2, v1: v2 = (x + m): x.

4. The method of claim 1, wherein: When the computer receives the planar image of the workpiece, the control component will automatically compare the track groove in the planar image with the track grooves in the identification areas of each template in the template library, and if a point painting track template matching the track groove of the workpiece is found, the control component will automatically call the template from the template library.

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