A method and system for automatically identifying vehicle body painting status

Abstract

The present invention discloses a method and system for automatically identifying the painting status of a vehicle body, comprising: obtaining a pre-production new vehicle body drawing number, determining whether it contains the original vehicle body drawing number corresponding to the pre-production, and determining whether the first final assembly parts plan corresponding to the original vehicle body drawing number contains the first part drawing number of the same color as the original vehicle model configuration; if the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is not contained, or the first final assembly parts plan does not contain the first part drawing number, then the production plan containing the original vehicle body drawing number is sent to the automatic recognition and tracking system for painting vehicles; otherwise, the production plan containing the pre-production new vehicle body drawing number is sent to the automatic recognition and tracking system for painting vehicles, so that the automatic recognition and tracking system for painting vehicles tracks and automatically sprays the vehicle according to the received production plan. The use of the present invention can save labor costs and reduce the risk of accidental painting and economic losses in vehicle body spraying.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control, and in particular to a method and system for automatically identifying the painting status of a vehicle body. Background Art

[0002] With the development of automation and intelligence in painting, general painting topcoat lines all adopt automatic spraying. When a vehicle enters the painting line, the painting AVI system receives the painting plan from the MES engineering management system and transmits the body spraying information to the robot through the PLC. Based on the received information, the robot calls the spraying module with the corresponding program number, vehicle model and its feature options in the main program and the spraying program to perform the spraying operation, thereby realizing automatic spraying. In this process, the one-by-one body-in-white drawing number is the key to realizing automatic spraying recognition in painting.

[0003] In the commercial vehicle sector, which is categorized as engineering vehicles, tractors, and trucks, OEMs typically choose to install different configurations of headlights and bumpers to meet specific assembly requirements. To improve production efficiency and enhance color difference acceptance rates, paint shops often incorporate automated painting of sheet metal parts during painting operations through tooling design. These changes in component configurations due to final assembly requirements are not fully reflected in the body-in-white drawing numbers. Consequently, most paint lines cannot automatically identify the loading and unloading status of sheet metal parts during painting. Manual identification is required, requiring manual code entry stations at the wipe station. The body's program, color, and options are modified based on the status of the sheet metal parts installed in the cab. However, these manual modifications often carry risks, such as incorrectly entering the vehicle program number, incorrect options, or missing code changes. These can result in wasted painting costs at best, or even damage to the robot, potentially causing collisions between the robot and the cab, resulting in significant financial losses.

[0004] Therefore, the method of manually identifying sheet metal parts and spraying them increases the risk of mis-painting, has low spraying efficiency, and is more likely to cause waste of painting costs. More seriously, it may lead to large economic losses such as damage to the machine. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art and propose a method and system for automatically identifying the painting status of a vehicle body, aiming to provide a method for automatically identifying the painting status of a vehicle body, which can save labor costs and reduce the risk of mis-spraying and economic losses on the vehicle body.

[0006] In a first aspect, the present invention provides a method for automatically identifying the coating status of a vehicle body, which is applied to a production management system, comprising:

[0007] Obtaining a pre-production new vehicle body drawing number, determining whether it contains the original vehicle body drawing number corresponding to the pre-production, and determining whether the first final assembly parts plan corresponding to the original vehicle body drawing number contains a first part drawing number of the same color as the original vehicle model configuration;

[0008] If the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is not included, or the first final assembly parts plan does not include the first parts drawing number, the production plan containing the original vehicle body drawing number is sent to the automatic recognition and tracking system for painting vehicle bodies, so that the automatic recognition and tracking system for painting vehicle bodies tracks and automatically paints the vehicle according to the received production plan;

[0009] Otherwise, the production plan containing the pre-production new vehicle body drawing number is sent to the automatic identification and tracking system for painted vehicle bodies, so that the automatic identification and tracking system for painted vehicle bodies tracks and automatically sprays the vehicle according to the received production plan.

[0010] The present invention determines the pre-production new vehicle body drawing number based on the original vehicle body drawing number, and sends the corresponding generated production plan to the automatic recognition and tracking system for the painted vehicle body, so that the automatic recognition and tracking system for the painted vehicle body tracks and automatically sprays the vehicle according to the production plan. This can reduce the amount of data interaction when the vehicle body drawing number information is transmitted from the production management system to the automatic recognition and tracking system for the painted vehicle body, and can reduce the mis-painting caused by multiple manual modification options for the same vehicle during the subsequent spraying process, thereby reducing the waste of painting costs and reducing the risk of economic losses.

[0011] Furthermore, obtaining the pre-production new vehicle body drawing number includes:

[0012] According to the vehicle spraying status of the newly added parts corresponding to the same original vehicle body drawing number, the spraying options and the corresponding automatic spraying program numbers are set; wherein the spraying options include other spraying statuses;

[0013] According to the other spraying states, a corresponding mark is added after the original vehicle body drawing number to generate a pre-production new vehicle body drawing number.

[0014] The present invention generates a pre-produced new vehicle body drawing number based on the other spraying states to distinguish it from the original vehicle body drawing number, and can accurately distinguish between those with and without new parts spraying, and avoid repeatedly generating the same vehicle body drawing number, thereby improving the spraying efficiency of the corresponding sprayed parts, and reducing the mis-painting caused by multiple manual modification options for the same vehicle during the subsequent spraying process, thereby reducing the waste of painting costs and reducing the risk of economic losses.

[0015] Furthermore, the spraying options and the corresponding automatic spraying program numbers are set according to the spraying status of the newly added parts corresponding to the same original vehicle body drawing number, specifically:

[0016] According to the spraying requirements of the newly added parts corresponding to the same original vehicle body drawing number, one spraying state is selected from multiple spraying states as the default spraying state, and the remaining spraying states are the corresponding other spraying states, and corresponding spraying options and corresponding automatic painting program numbers are set for the default spraying state and the other spraying states respectively; wherein, the default spraying state is a state where there are no parts on the vehicle.

[0017] Furthermore, the automatic identification and tracking system for painting vehicle bodies tracks and automatically sprays vehicles according to the received production plan, including:

[0018] Obtaining a first production plan generated by the production management system and adding corresponding painting information to the backend system of the automatic identification and tracking system for painting vehicle bodies to generate a first painting plan; wherein the painting information includes: the on-vehicle painting status, painting options, and the automatic painting program number of the first newly added part;

[0019] According to the on-vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set so that the robot sprays the corresponding spraying parts according to the automatic spraying program number.

[0020] The present invention generates a corresponding painting plan according to the production plan generated by the production management system, and sets the corresponding spraying trajectory and spraying parameters of the newly added parts, so that the robot can automatically spray. It can reduce the potential risk of mis-painting caused by manual modification of the spraying options for the corresponding spraying parts, and can reduce the potential losses caused by collisions between humans and machines, thereby reducing the waste of painting costs and reducing the risk of economic losses.

[0021] Furthermore, the first production plan generated by the production management system is obtained, and the corresponding spraying information is added to the background system of the automatic identification and tracking system for painted vehicle bodies to generate the first painting plan, including:

[0022] For vehicles entering the painting sled, the read / write head of the painting vehicle body automatic identification and tracking system reads the corresponding steel stamp code and the sled number of the painting sled, so as to realize the binding of the vehicle's steel stamp code and the painting sled number;

[0023] According to the steel stamp code retrieval, the first production plan issued by the production management system is retrieved, the first body drawing number and spraying information of the first production plan corresponding to the steel stamp code body are obtained, and the corresponding spraying information is added to the background system of the painted body automatic identification and tracking system to generate the corresponding first painting plan.

[0024] Furthermore, according to the vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set so that the robot sprays the corresponding spraying part according to the automatic spraying program number, specifically:

[0025] According to the vehicle spraying status of the first newly added part, if there are parts to be sprayed, the robot is started, and according to the spraying trajectory and corresponding parameters set for the corresponding vehicle model, the robot moves and sprays paint;

[0026] If there are no parts to be sprayed, the robot will be started and will move according to the spraying trajectory of the corresponding vehicle model without spraying paint.

[0027] The present invention adopts the on-vehicle spraying status of the corresponding newly added parts. If there are parts to be sprayed, the robot moves and sprays paint according to the preset spraying trajectory and parameters. Otherwise, it only moves according to the trajectory without spraying. It can effectively save the cost of vehicle paint, and reduce the time cost and potential risk of mispainting of manual painting, thereby reducing economic losses and improving painting efficiency.

[0028] Furthermore, the method for automatically identifying the vehicle body painting status further includes:

[0029] Make a note of the second painting plan corresponding to the part drawing number of the cab assembled with the same color spray parts, so that the workshop workers can check the part drawing number of the second newly added part in the corresponding second painting plan every day, and hang the corresponding second newly added part to the corresponding position of the corresponding vehicle so that the robot can spray it.

[0030] Furthermore, the spraying trajectory and corresponding parameters set according to the corresponding vehicle model include:

[0031] According to the newly added parts of the corresponding vehicle model, set the spray trajectory, brush type, paint color, spray flow rate, and spray position.

[0032] In a second aspect, the present invention provides a vehicle body painting status automatic identification system, comprising: a production management system end, and a painted vehicle body automatic identification and tracking system end; wherein,

[0033] The production management system is used to generate a production plan and send it to the automatic identification and tracking system for painted vehicle bodies, so as to implement the automatic identification method for vehicle body painting status as described in the first aspect;

[0034] The automatic identification and tracking system for painted vehicle bodies is used to receive the production plan issued by the production management system and automatically spray paint according to the production plan.

[0035] The vehicle body painting status automatic identification system further includes:

[0036] The welding body automatic identification and tracking system is used to use a scanner to scan the vehicle steel stamp code on the barcode on the vehicle body and enter the scanning result into the welding body automatic identification and tracking system to achieve binding between the welding skid and the vehicle steel stamp code, and enable the painting body automatic identification and tracking system to obtain the corresponding steel stamp code according to the skid number of the welding skid;

[0037] The vehicle is sent to the painting workshop via the welding skid in the order of the painting plan, so that the painting vehicle body automatic identification and tracking system automatically sprays the vehicle.

[0038] The present invention determines the pre-production new vehicle body drawing number based on the original vehicle body drawing number, and sends the corresponding generated production plan to the automatic recognition and tracking system for the painted vehicle body, so that the automatic recognition and tracking system for the painted vehicle body tracks and automatically sprays the vehicle according to the production plan. This can reduce the amount of data interaction when the vehicle body drawing number information is transmitted from the production management system to the automatic recognition and tracking system for the painted vehicle body, and can reduce the mis-painting caused by multiple manual modification options for the same vehicle during the subsequent spraying process, thereby reducing the waste of painting costs and reducing the risk of economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of a process for automatically identifying the vehicle body painting status on a production management system side provided by an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of generating a pre-production new vehicle body drawing number by automatically identifying the vehicle body painting status according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of a process for automatically identifying the vehicle body painting status and generating a production plan according to an embodiment of the present invention;

[0042] Figure 4 Schematic diagram of a spraying trajectory for automatic identification of a vehicle body painting status provided by an embodiment of the present invention;

[0043] Figure 5 It is a structural diagram of the automatic recognition system for vehicle body painting status provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0045] See also Figure 1 , is a flow chart of automatic identification of vehicle body painting status on the production management system side provided by an embodiment of the present invention, including steps S11 to S14, specifically:

[0046] Step S11: Obtain the pre-production new vehicle body drawing number.

[0047] Specifically, according to the on-vehicle spraying status of the newly added parts corresponding to the same original vehicle body drawing number, the spraying options and the corresponding automatic painting program number are set; wherein, the spraying options include other spraying statuses; according to the other spraying statuses, the corresponding logo is added after the original vehicle body drawing number to generate a pre-production new vehicle body drawing number. wherein, according to the on-vehicle spraying status of the newly added parts corresponding to the same original vehicle body drawing number, the spraying options and the corresponding automatic painting program number are set, specifically: according to the spraying requirements of the newly added parts corresponding to the same original vehicle body drawing number, one spraying status is selected from multiple spraying statuses as the default spraying status, and the remaining spraying statuses are the corresponding other spraying statuses, and the corresponding spraying options and the corresponding automatic painting program number are set for the default spraying status and the other spraying statuses respectively; wherein, the default spraying status is the no-parts-on-vehicle status.

[0048] Exemplarily, based on the vehicle model with the same drawing number, the vehicle-mounted painting status of the newly added sheet metal parts includes: status 1: adding a corner plate of the same color as the vehicle, status 2: adding a front panel of the same color as the vehicle, and status 3: adding a bumper of the vehicle. According to the spraying frequency or spraying preference of the vehicle body parts, one of the states is set as the default spraying state, and the spraying option is set to spraying option 1. The remaining states are set to other spraying states, and the spraying options are set to spraying option 2 and spraying option 3 in turn; and, corresponding signs are added to the original vehicle body drawing numbers of other spraying states in turn to generate pre-production new vehicle body drawing numbers, and corresponding spraying options and corresponding automatic painting program numbers are set for the default spraying state and other spraying states respectively.

[0049] For example, see Figure 2, is a schematic diagram of generating a new pre-production vehicle body drawing number by automatically identifying the vehicle body paint status, as provided by an embodiment of the present invention. Since the matte dark black sheet metal bumper and the plastic bumper cannot be painted with the vehicle, a search is performed to determine whether the pre-production vehicle body drawing number corresponds to the original vehicle body drawing number, and to determine whether the first final assembly parts plan corresponding to the original vehicle body drawing number contains the first part drawing number of the same color as the original vehicle model configuration. Alternatively, a search is performed to determine whether the vehicle model with the original body-in-white drawing number contains the first part drawing number of the same color as the original vehicle model configuration. Taking the original body drawing number of the H58 model and the newly added parts with and without its same-color bumper as an example, the part drawing number of the same-color bumper is H73-2803239. In the final assembly parts plan retrieved in the production management system, searching for "H58 model original white body drawing number" and part drawing number "H73-2803239" will display all the body white parts drawing numbers of the H58 model. In the figure, the body white parts drawing number is the original body drawing number, and "-PT" will be added after the original body drawing number with part drawing number "H73-2803239" to indicate it as a pre-production new body drawing number. At the same time, the spraying options and corresponding definitions are given in the remarks.

[0050] The body drawing numbers with option number 1 are all for vehicles that have no new parts to be painted, and the generated drawing numbers are pre-production new body drawing numbers. Since the body drawing numbers with option number 1 have no new parts to be painted, the pre-production new body drawing numbers are still the original body drawing numbers, and they are all painted using program number 13, with the spraying operation explained in the remarks. The body drawing numbers with option number 2 are all for vehicles that have new parts to be painted, and the suffix of the generated drawing numbers is used to indicate that they are pre-production new body drawing numbers. Since the vehicles corresponding to option number 1 and option number 2 are the same model, the same program number 13 can be used for spraying.

[0051] It is worth noting that although the vehicle corresponding to option number 1 and the vehicle corresponding to option number 2 use the same program number 13 for spraying, according to the settings of the spraying trajectory and spraying parameters, the vehicle corresponding to option number 1 will not spray the newly added parts, only the spraying robot moves according to the spraying trajectory, while for the newly added parts of the vehicle corresponding to option number 2, the spraying robot will rotate the cup to spray the same color bumper according to the spraying trajectory and spraying parameters.

[0052] Step S12: Determine whether the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is included, and determine whether the first final assembly parts plan corresponding to the original vehicle body drawing number contains a first part drawing number of the same color as the original vehicle model configuration. If the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is not included, or if the first final assembly parts plan does not contain the first part drawing number, then proceed to Step S13; otherwise, proceed to Step S14.

[0053] Step S13: Send the production plan containing the original vehicle body drawing number to the automatic identification and tracking system for painted vehicle bodies, so that the automatic identification and tracking system for painted vehicle bodies tracks and automatically sprays the vehicle according to the received production plan.

[0054] Step S14: Send the production plan containing the original vehicle body drawing number to the automatic identification and tracking system for painted vehicle bodies, so that the automatic identification and tracking system for painted vehicle bodies tracks and automatically sprays the vehicle according to the production plan.

[0055] For example, see Figure 3 , is a flow chart of generating a production plan for automatic identification of vehicle body painting status provided by an embodiment of the present invention. In the figure, for the case where the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is not included, or the first final assembly parts plan does not include the first parts drawing number, the remaining original vehicle body parts corresponding to the original vehicle body drawing number can be modified and saved; for the case where the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is included, or the first final assembly parts plan does not include the first parts drawing number, it is determined in turn whether the pre-production new vehicle body drawing number and the first parts drawing number are empty and whether they are repeated with the records in the system, and a non-empty prompt and a repeated prompt are respectively given, and the pre-production new vehicle body drawing number and the corresponding first parts drawing number are received again; and the updated relevant vehicle body drawing number and spraying information are displayed for confirmation by the staff.

[0056] The present invention determines the pre-production new body drawing number based on the original body drawing number, and can modify and save the body drawing number according to the determination result, and display the updated related body drawing number and spraying information for staff to confirm; and sends the corresponding generated production plan to the automatic recognition and tracking system for the painted body, so that the automatic recognition and tracking system for the painted body tracks and automatically sprays the vehicle according to the production plan, which can reduce the data exchange volume of the body drawing number information transmitted from the production management system to the automatic recognition and tracking system for the painted body, and can reduce the mis-painting caused by multiple manual modification options due to multiple spraying options for the same vehicle in the subsequent spraying process, thereby reducing the waste of painting costs and reducing the risk of economic losses.

[0057] Specifically, the automatic identification and tracking system for painting vehicle bodies tracks and automatically sprays vehicles according to the received production plan, including: obtaining the first production plan generated by the production management system, and adding the corresponding spraying information to the background system of the automatic identification and tracking system for painting vehicle bodies to generate a first painting plan; wherein the spraying information includes: the on-vehicle spraying status, spraying options and automatic spraying program number of the first newly added part; according to the on-vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set, so that the robot sprays the corresponding spraying parts according to the automatic spraying program number.

[0058] For example, the spraying information of the original drawing number of the H58 model, including: the spraying information with the spraying program number 13 and the spraying option 1, and the spraying information of the newly added pre-production new body drawing number, including: the spraying information with the spraying program number 13 and the spraying option 2, are synchronously maintained in the background system of the automatic identification and tracking system for the painted vehicle body, so that the painting robot system can call the valid spraying information.

[0059] Preferably, the spraying trajectory, brush type, paint color, spraying flow rate, and spraying position are set according to the newly added parts of the corresponding vehicle model.

[0060] Among them, the first production plan generated by the production management system is obtained, and the corresponding spraying information is added to the background system of the automatic identification and tracking system for the painted vehicle body to generate the first painting plan, including: using the read-write head of the automatic identification and tracking system for the painted vehicle body to read the corresponding steel stamp code and the skid number of the painting skid for the vehicle entering the painting skid, so as to realize the binding of the vehicle's steel stamp code and the painting skid number; according to the steel stamp code, the first production plan issued by the production management system is retrieved, the first body drawing number and its spraying information of the first production plan corresponding to the steel stamp code body are obtained, and the corresponding spraying information is added to the background system of the automatic identification and tracking system for the painted vehicle body to generate the corresponding first painting plan.

[0061] It is worth noting that each vehicle corresponds to a unique barcode, and the barcode has a unique body stamp code. The corresponding body drawing number and corresponding spray information can be obtained by scanning the stamp code with a scanner.

[0062] In addition, according to the on-vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set, so that the robot sprays the corresponding spraying parts according to the automatic spraying program number, specifically: according to the on-vehicle spraying status of the corresponding first newly added part, if there are parts to be sprayed, the robot is started, and according to the set spraying trajectory and corresponding parameters of the corresponding vehicle model, the robot moves and sprays paint; if there are no parts to be sprayed, the robot is started, and according to the spraying trajectory of the corresponding vehicle model, the robot moves and does not spray paint.

[0063] For example, see Figure 4 , is a schematic diagram of a spraying trajectory for automatic recognition of a vehicle body painting state provided by an embodiment of the present invention, Figure 4 (a) is the trajectory of the robot spraying the body of the same model without new parts. Figure 4 (b) is the trajectory of the robot spraying the body of the same model with new parts. Figure 4 In (a), the robot only follows the spraying trajectory and uses the preset brushes 1 and 2, without opening the spray gun for spraying, and the spray flow rate is 0. Figure 4 In (b), the robot automatically sprays according to the spraying trajectory and the preset brushes 13, 14, 15, and 2, and according to the corresponding spraying flow and paint color.

[0064] It is worth noting that it also includes: making notes on the second painting plan corresponding to the second part drawing number of the cab assembled with the same color spray parts, so that the workshop workers can check the second part drawing number of the second newly added part in the corresponding second painting plan every day, and hang the corresponding second newly added part to the corresponding position of the corresponding vehicle so that the robot can spray it.

[0065] For example, for the H58 model equipped with the same color bumper, at the electrophoretic sheet metal station, the workshop worker checks the "secondary bumper" column in the painting plan. If there is a bumper with the same color drawing number "H73-2803239", the electrophoretic bumper will be hung to the corresponding position on the car with the help of tooling so that the robot can spray it.

[0066] The present invention also provides a vehicle body painting status automatic identification system, comprising: a production management system end, and a painted vehicle body automatic identification and tracking system end.

[0067] The production management system is used to generate a production plan and send it to the automatic identification and tracking system for the painted vehicle body, so as to realize the automatic identification in the method for automatic identification of the vehicle body painting status.

[0068] The automatic identification and tracking system for painted vehicle bodies is used to receive the production plan issued by the production management system and automatically spray paint according to the production plan.

[0069] In addition, the automatic identification system for the vehicle body painting status also includes: an automatic identification and tracking system end for the welded vehicle body, which is used to use a scanner to scan the vehicle steel stamp code on the barcode on the vehicle body, and enter the scanning result into the automatic identification and tracking system for the welded vehicle body, so as to realize the binding of the welding skid and the vehicle steel stamp code, and realize the automatic identification and tracking system end for the painted vehicle body to obtain the corresponding steel stamp code according to the skid number of the welding skid; the vehicle is sent to the painting workshop via the welding skid in the order of the painting plan, so that the automatic identification and tracking system for the painted vehicle body can automatically spray the vehicle.

[0070] For example, the automatic identification and tracking system for painted vehicles retrieves the production plan issued by the production management system based on the H58 model steel stamp code, and obtains the body drawing number and other production information of the H58 model corresponding to the steel stamp code body, including: spray color, model, etc.

[0071] See also Figure 5 , is a structural diagram of the automatic identification system for vehicle body painting status provided by an embodiment of the present invention, including: a production management system 51, an automatic identification and tracking system for painted vehicle bodies 52, and an automatic identification and tracking system for welded vehicle bodies 53.

[0072] The present invention determines the pre-production new body drawing number based on the original body drawing number, and can modify and save the body drawing number according to the determination result, and display the updated related body drawing number and spraying information for staff to confirm; and sends the corresponding generated production plan to the automatic recognition and tracking system for the painted body, so that the automatic recognition and tracking system for the painted body tracks and automatically sprays the vehicle according to the production plan, which can reduce the data exchange volume of the body drawing number information transmitted from the production management system to the automatic recognition and tracking system for the painted body, and can reduce the mis-painting caused by multiple manual modification options due to multiple spraying options for the same vehicle in the subsequent spraying process, thereby reducing the waste of painting costs and reducing the risk of economic losses.

[0073] Those skilled in the art will appreciate that the embodiments of the present application may also provide computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0074] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0075] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0076] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0077] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for automatically identifying the coating status of a vehicle body, characterized in that: Applied to the production management system, including: Obtaining a pre-production new vehicle body drawing number, determining whether it contains the original vehicle body drawing number corresponding to the pre-production, and determining whether the first final assembly parts plan corresponding to the original vehicle body drawing number contains a first part drawing number of the same color as the original vehicle model configuration; If the original vehicle body drawing number corresponding to the pre-production new vehicle body drawing number is not included, or the first final assembly parts plan does not include the first parts drawing number, the production plan containing the original vehicle body drawing number is sent to the automatic recognition and tracking system for painting vehicle bodies, so that the automatic recognition and tracking system for painting vehicle bodies tracks and automatically paints the vehicle according to the received production plan; Otherwise, the production plan containing the pre-production new vehicle body drawing number is sent to the automatic identification and tracking system for painted vehicle bodies, so that the automatic identification and tracking system for painted vehicle bodies tracks and automatically sprays the vehicle according to the received production plan.

2. The method for automatically identifying the vehicle body painting status according to claim 1, wherein: The obtaining of the pre-production new vehicle body drawing number includes: According to the vehicle spraying status of the newly added parts corresponding to the same original vehicle body drawing number, the spraying options and the corresponding automatic spraying program numbers are set; wherein the spraying options include other spraying statuses; According to the other spraying states, a corresponding mark is added after the original vehicle body drawing number to generate a pre-production new vehicle body drawing number.

3. The method for automatically identifying the vehicle body painting status according to claim 2, wherein: The spraying options and the corresponding automatic spraying program numbers are set according to the spraying status of the newly added parts corresponding to the same original vehicle body drawing number, specifically: According to the spraying requirements of the newly added parts corresponding to the same original vehicle body drawing number, one spraying state is selected from multiple spraying states as the default spraying state, and the remaining spraying states are the corresponding other spraying states, and corresponding spraying options and corresponding automatic painting program numbers are set for the default spraying state and the other spraying states respectively; wherein, the default spraying state is a state where there are no parts on the vehicle.

4. The method for automatically identifying the vehicle body painting status according to claim 1, wherein: The automatic identification and tracking system for painting vehicles tracks and automatically sprays vehicles according to the received production plan, including: Obtaining a first production plan generated by the production management system and adding corresponding painting information to the backend system of the automatic identification and tracking system for painting vehicle bodies to generate a first painting plan; wherein the painting information includes: the on-vehicle painting status, painting options, and the automatic painting program number of the first newly added part; According to the on-vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set so that the robot sprays the corresponding spraying parts according to the automatic spraying program number.

5. The method for automatically identifying the vehicle body painting status according to claim 4, characterized in that: The first production plan generated by the production management system is obtained, and the corresponding spraying information is added to the background system of the automatic identification and tracking system for painted vehicle bodies to generate the first painting plan, including: For vehicles entering the painting sled, the read / write head of the painting vehicle body automatic identification and tracking system reads the corresponding steel stamp code and the sled number of the painting sled, so as to realize the binding of the vehicle's steel stamp code and the painting sled number; According to the steel stamp code retrieval, the first production plan issued by the production management system is retrieved, the first body drawing number and spraying information of the first production plan corresponding to the steel stamp code body are obtained, and the corresponding spraying information is added to the background system of the painted body automatic identification and tracking system to generate the corresponding first painting plan.

6. The method for automatically identifying the vehicle body painting status according to claim 4, characterized in that: According to the vehicle spraying status of the first newly added part in the corresponding first painting plan, the spraying trajectory of the corresponding vehicle model is set, and the parameters corresponding to the spraying options are set so that the robot sprays the corresponding spraying part according to the automatic spraying program number, specifically: According to the vehicle spraying status of the first newly added part, if there are parts to be sprayed, the robot is started, and according to the spraying trajectory and corresponding parameters set for the corresponding vehicle model, the robot moves and sprays paint; If there are no parts to be sprayed, the robot will be started and will move according to the spraying trajectory of the corresponding vehicle model without spraying paint.

7. The method for automatically identifying the vehicle body painting status according to claim 4, wherein: Also includes: Make a note of the second painting plan corresponding to the second part drawing number of the cab assembled with the same color spray parts, so that the workshop workers can check the second part drawing number of the second newly added part in the corresponding second painting plan every day, and hang the corresponding second newly added part to the corresponding position of the corresponding vehicle so that the robot can spray it.

8. The method for automatically identifying the vehicle body painting status according to claim 6, wherein: The spraying trajectory and corresponding parameters according to the setting of the corresponding vehicle model include: According to the newly added parts of the corresponding vehicle model, set the spray trajectory, brush type, paint color, spray flow rate, and spray position.

9. A vehicle body painting status automatic recognition system, characterized in that: include: Production management system end, painted vehicle body automatic identification and tracking system end; among them, The production management system is used to generate a production plan and send it to the automatic identification and tracking system for painted vehicle bodies, so as to implement the automatic identification method for vehicle body painting status according to any one of claims 1 to 8; The automatic identification and tracking system for painted vehicle bodies is used to receive the production plan issued by the production management system and automatically spray paint according to the production plan.

10. The vehicle body painting status automatic identification system according to claim 9, characterized in that: Also includes: The welding body automatic identification and tracking system is used to use a scanner to scan the vehicle steel stamp code on the barcode on the vehicle body and enter the scanning result into the welding body automatic identification and tracking system to achieve binding between the welding skid and the vehicle steel stamp code, and enable the painting body automatic identification and tracking system to obtain the corresponding steel stamp code according to the skid number of the welding skid; The vehicle is sent to the painting workshop via the welding skid in the order of the painting plan, so that the painting vehicle body automatic identification and tracking system automatically sprays the vehicle.

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