Method of manufacturing a vehicle

Abstract

The application provides a manufacturing method of a vehicle, sequentially comprising the following steps: a vehicle body forming step of forming a vehicle body according to a forming parameter of the vehicle body; a first measuring step of measuring the vehicle body to obtain a vehicle body mounting parameter about a vehicle body side mounting portion; comparing the vehicle body mounting parameter with a preset vehicle body mounting parameter benchmark, and executing an assembling step when the two parameters match; an assembling step of assembling a spare part on the vehicle body according to the vehicle body mounting parameter and a spare part mounting parameter about a spare part side mounting portion; and a second measuring step of measuring position information of the spare part relative to the vehicle body in an assembled state, and adjusting a forming parameter of the vehicle body side mounting portion in the forming parameter of the vehicle body according to the position information. The application can improve assembling efficiency and assembling precision, and can successfully realize assembling.

Description

Technical Field

[0001] This invention relates to a method for manufacturing a vehicle. Background Technology

[0002] In vehicle assembly, such as tailgate installation, the tailgate was traditionally installed manually, which is labor-intensive. Therefore, a method for automated installation is needed. During automated installation, precision must be ensured. Current technologies mostly involve measuring components and the vehicle body on-site at the assembly line, and then using the measurement data to perform automated assembly calculations and complete the assembly.

[0003] However, in reality, the mass-produced car body and tailgate will differ from the mold and are not exactly the same. For example, the mounting points may deviate from the mold. When the deviation is large, the tailgate and car body cannot be assembled smoothly. This will cause the production line to stop or require repairs to the car body or tailgate, resulting in a high number of rework operations and low overall assembly efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a vehicle assembly method that can improve assembly efficiency, improve assembly accuracy, and smoothly achieve assembly.

[0005] The first aspect of the present invention provides a method for manufacturing a vehicle, the vehicle including a body and components, the body having a body-side mounting portion, the components having component-side mounting portions, the component-side mounting portions being mounted on the body-side mounting portions, the method for manufacturing the vehicle sequentially including the following steps: a body forming step, forming the body according to the body forming parameters; a first measurement step, measuring the body to obtain body mounting parameters regarding the body-side mounting portions; comparing the body mounting parameters with a preset body mounting parameter reference, and performing an assembly step when the two match; an assembly step, assembling the components on the body according to the body mounting parameters and the component mounting parameters regarding the component-side mounting portions; and a second measurement step, measuring the position information of the components relative to the body in the assembled state, and adjusting the forming parameters of the body-side mounting portions in the body forming parameters according to the position information.

[0006] Using the method described above, the vehicle body installation parameters obtained through the first measurement process are compared with a preset vehicle body installation parameter benchmark. If they match, the assembly process is executed. In other words, the execution of an assembly process for a particular vehicle body is conditional upon the measured vehicle body installation parameters matching its benchmark. If the vehicle body installation parameters do not match the preset benchmark, the assembly process will not be executed for that vehicle body. This avoids discovering assembly failures only during actual assembly, ensuring smooth assembly operations. Furthermore, using the method described above, after the vehicle body and components are assembled, the positional information of the components relative to the vehicle body is measured to determine the assembly tendency of the components and the vehicle body, such as tilting or shifting in a certain direction. Based on this positional information, the forming parameters of the vehicle body side mounting portion used as a basis in the vehicle body forming process are adjusted. Thus, in subsequent vehicle body forming, the adjusted forming parameters are used, making the formed vehicle body closer to the standard assembly state. This suppresses situations where the vehicle body and components cannot be assembled, improves assembly accuracy, and ensures smooth assembly.

[0007] As one possible implementation of the first aspect, the vehicle body installation parameters obtained through the first measurement process are compared with a preset vehicle body installation parameter benchmark. If the two do not match, the equipment in the vehicle body forming process is adjusted to correct the vehicle body according to the vehicle body installation parameters and the vehicle body installation parameter benchmark.

[0008] In this way, after the vehicle body is formed, the installation parameters can be compared with the preset installation parameter benchmarks to determine whether the formed vehicle body meets the assembly requirements. If the assembly requirements are not met, it can be detected and corrected in time, thereby preventing vehicles that do not meet the assembly requirements from entering the assembly process. This ensures that all vehicles entering the assembly process can be assembled smoothly, preventing production line stoppages due to assembly failures and improving overall assembly efficiency.

[0009] As one possible implementation of the first aspect, the two are matched when the difference between the vehicle body installation parameters and the preset vehicle body installation parameter benchmark is within a preset threshold; and / or the two are not matched when the difference between the vehicle body installation parameters and the preset vehicle body installation parameter benchmark is outside the preset threshold.

[0010] In this way, by comparing the difference with the preset threshold, it is easy and quick to determine whether the formed vehicle body meets the assembly requirements, and thus decide whether to proceed to the assembly process.

[0011] As one possible implementation of the first aspect, the preset threshold is adjusted according to the location information, and the adjusted preset threshold is less than or equal to the original preset threshold.

[0012] In this way, through gradual adjustments, the preset threshold is gradually reduced, and the vehicle body installation parameters gradually approach the preset vehicle body installation parameter benchmark. The formed vehicle body that is closer to the preset vehicle body installation parameter benchmark or drawing data can be transported to the assembly process, thereby obtaining an assembly result that is closer to the drawing.

[0013] As one possible implementation of the first aspect, the vehicle body installation parameters obtained through the first measurement process are compared with a preset vehicle body installation parameter benchmark, and the result of the comparison is displayed.

[0014] This allows operators to grasp the actual forming status of the vehicle body, and to quickly find the cause when problems occur (such as the aforementioned "mismatch").

[0015] As one possible implementation of the first aspect, the vehicle manufacturing method further includes a painting process for painting the vehicle body, wherein the first measurement process is performed prior to the painting process.

[0016] This avoids the problem of inaccurate measurements or unmeasurable data on the vehicle body surface due to light interference after the coating is applied, which would affect the subsequent assembly accuracy. Measuring before the painting process yields more accurate data.

[0017] As one possible implementation of the first aspect, the vehicle body forming process includes a process of welding the vehicle body in a welding work area, wherein the first measurement process is performed in the welding work area.

[0018] In this way, by measuring data in the welding area and comparing it with the vehicle body installation parameter benchmark, operators can promptly grasp the actual forming status of the vehicle body. For example, when problems occur (such as the aforementioned "mismatch"), corrections can be made directly in the welding area until the assembly requirements are met before proceeding to the next process. This avoids the time-consuming rework problem of having to return to the welding area for corrections when assembly requirements are not met during assembly. Moreover, welding usually occurs before painting, so measuring in the welding area can prevent the vehicle body from being unmeasurable or having inaccurate measurement data due to the influence of light on the vehicle body surface after the coating has formed, which would affect subsequent assembly.

[0019] As one possible implementation of the first aspect, in the assembly process, the component installation parameters are obtained by scanning the identification code set on the component.

[0020] Sometimes, the assembly area may store multiple components simultaneously. Therefore, if the component installation parameters are obtained through electronic storage or other methods, errors may occur (data and components do not match), placing high demands on component management. In this embodiment, by setting identification codes on the components to transmit component installation parameters, data transmission can be carried out easily, accurately, and reliably, ensuring smooth assembly.

[0021] In addition, at this time, parts can be formed in places that are far from the assembly area and difficult to communicate with the assembly process controller, thus improving production flexibility.

[0022] As one possible implementation of the first aspect, the component installation parameters and / or vehicle body installation parameters are stored in a process server, and the component installation parameters and / or vehicle body installation parameters are obtained from the process server during the assembly process.

[0023] This makes it suitable for automated production lines and facilitates data management.

[0024] As one possible implementation of the first aspect, the forming parameters of the vehicle body side mounting portion include fixture position parameters.

[0025] That is, by adjusting the position of the jig on the vehicle body according to the position information, the actual forming condition of the side mounting part of the vehicle body can be easily adjusted.

[0026] As a possible implementation of the first aspect, adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the location information includes: sending the location information to the terminal device in the vehicle body molding process and displaying it; manually adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the received location information; or controlling the equipment in the vehicle body molding process to automatically adjust the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the received location information.

[0027] In this way, by sending the location information to the terminal equipment in the vehicle body forming process and displaying it, the information can be displayed more intuitively. As for the adjustment of the forming parameters of the vehicle body side mounting part in the forming parameters, it can be adjusted by automatic control of intelligent equipment or by manual adjustment. Regardless of the adjustment method, the forming parameters can be adjusted based on the assembly status data, thereby achieving an assembly status that is closer to the drawing.

[0028] As a possible implementation of the first aspect, adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the position information includes: calculating a correction value of the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the position information, and adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body based on the correction value.

[0029] In this way, the correction value is calculated based on the position information, and the molding parameters of the vehicle body side mounting part in the molding parameters can be corrected, so that the molding parameters gradually approach the optimal assembly state, which can quickly and well improve the assembly effect and assembly accuracy.

[0030] As one possible implementation of the first aspect, adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the position information includes: comparing the position information with a preset reference value to obtain a deviation value, and correcting the molding parameters of the vehicle body side mounting part based on the deviation value.

[0031] Thus, based on the deviation between the position information and the preset benchmark value, the assembly tendency of the vehicle body and parts can be clearly identified, such as tilting in a certain direction or shifting to the right. Based on this deviation value, in order to obtain an assembly state that is closer to the drawing, the forming parameters of the mounting part on the side of the vehicle body can be corrected, which can quickly and effectively improve the assembly effect and assembly accuracy.

[0032] As one possible implementation of the first aspect, the position information is the position information of a single component in an assembled state relative to the vehicle body, or the position information is the average of the position information of multiple components in an assembled state relative to the vehicle body; and / or, the deviation value is the deviation value between the position information of a single component in an assembled state relative to the vehicle body and a preset reference value, or the deviation value is the average of the deviation values ​​between the position information of multiple components in an assembled state relative to the vehicle body and a preset reference value.

[0033] When adjusting based on measurements of individual components in their assembled state with the vehicle body, the system can react quickly and make timely adjustments. When adjusting based on the cumulative average of measurements of multiple components in their assembled state with the vehicle body, the system obtains assembly tendencies more accurately through multiple accumulations and makes adjustments based on the average value. This can suppress inappropriate and frequent adjustments and avoid the influence of some non-standard data on the adjustments.

[0034] As one possible implementation of the first aspect, when the number of position information or the number of deviation values ​​reaches a preset number, the forming parameters of the vehicle body side mounting part are corrected based on the deviation values; or when a preset time period is reached, the forming parameters of the vehicle body side mounting part are corrected based on the deviation values.

[0035] Using the above method, the forming parameters of the mounting part on the side of the vehicle body can be corrected by the deviation value. However, the correction cycle can be based on the needs of the production line and can be carried out in various ways. For example, the correction can be carried out by setting a preset quantity or a preset time. By accumulating a certain quantity or time, a more accurate assembly tendency can be obtained, and correction can be carried out based on this. This can avoid the possible errors caused by individual parts and avoid frequent adjustments.

[0036] A second aspect of the present invention provides a method for manufacturing a vehicle, the vehicle including a body and components, the body having a body-side mounting portion, and the components having component-side mounting portions, the component-side mounting portions being mounted on the body-side mounting portions. The method for manufacturing the vehicle sequentially includes the following steps: a component forming step, forming the component according to the component forming parameters; a third measurement step, measuring the component to obtain component mounting parameters related to the component-side mounting portions; comparing the component mounting parameters with a preset component mounting parameter reference, and performing an assembly step when they match; an assembly step, assembling the components on the body according to the body mounting parameters related to the body-side mounting portions and the component mounting parameters; and a second measurement step, measuring the position information of the component relative to the body in the assembled state, and adjusting the forming parameters of the component-side mounting portions in the component forming parameters according to the position information.

[0037] Using the method described above, the component installation parameters obtained through the third measurement process are compared with a preset component installation parameter benchmark. When they match, the assembly process is executed. In other words, the execution of an assembly process for a component is conditional upon the measured component installation parameters matching its benchmark. If the component installation parameters do not match the preset benchmark, the assembly process will not be executed for that component. This avoids discovering assembly failures only during actual assembly, ensuring smooth assembly operations. Furthermore, using the method described above, after the vehicle body and components are assembled, the positional information of the components relative to the vehicle body is measured to determine the component's assembly tendency, such as tilting in a certain direction or shifting to the right. Based on this positional information, the forming parameters of the component-side mounting portion used as a basis in the component forming process are adjusted. Thus, in subsequent component forming, the adjusted forming parameters are used, making the formed components closer to the standard assembly state. This suppresses situations where the vehicle body and components cannot be assembled, improves assembly accuracy, and ensures smooth assembly.

[0038] As a possible implementation of the second aspect, the component installation parameters obtained through the third measurement process are compared with a preset component installation parameter benchmark. If the two do not match, the equipment in the component forming process is adjusted to correct the component based on the component installation parameters and the component installation parameter benchmark.

[0039] In this way, after the parts are formed, the assembly parameters can be compared with the preset assembly parameter benchmarks to determine whether the formed parts meet the assembly requirements. If the assembly requirements are not met, they can be detected and corrected in time, thus preventing parts that do not meet the assembly requirements from entering the assembly process. This ensures that all parts entering the assembly process can be assembled smoothly, preventing production line stoppages due to assembly failures and improving overall assembly efficiency. Furthermore, it can suppress the occurrence of mismatches between subsequently formed parts and the benchmarks, improving forming accuracy and assembly accuracy.

[0040] As a possible implementation of the second aspect, the two are matched when the difference between the component installation parameters and the preset component installation parameter benchmark is within a preset threshold; and / or the two are not matched when the difference between the component installation parameters and the preset component installation parameter benchmark is outside the preset threshold.

[0041] In this way, by comparing the difference with the preset threshold, it is easy and quick to determine whether the molded parts meet the assembly requirements, and thus decide whether to enter the assembly process.

[0042] As a possible implementation of the second aspect, the preset threshold is adjusted according to the location information, and the adjusted preset threshold is less than or equal to the original preset threshold. Thus, through gradual adjustment, the preset threshold gradually decreases, and the component installation parameters gradually approach the preset component installation parameter reference. This allows a shaped vehicle body that more closely matches the preset vehicle body installation parameter reference or drawing data to be transported to the assembly process, thereby obtaining an assembly result that more closely resembles the drawing.

[0043] As a possible implementation of the second aspect, the third measurement process is performed in the region where the part forming process ends during the part forming process.

[0044] Here, the area where the component molding ends is the area where the component was located when molding was completed. Thus, performing the third measurement process in the area where the component is molded allows operators to promptly grasp the actual molding status of the component. For example, if a problem occurs (such as the aforementioned "mismatch"), it can be corrected directly in this molding area until the assembly requirements are met before proceeding to the next process. This avoids the time-consuming rework problem of having to return to the molding area for correction when assembly requirements are not met during assembly, simplifying the process and improving production efficiency.

[0045] As a possible implementation of the second aspect, it also includes an identification code forming process, in which an identification code is formed on the component to represent the component installation parameters according to the component installation parameters.

[0046] Sometimes, the assembly area may store multiple components simultaneously. Therefore, if the component installation parameters are obtained through electronic storage or other methods, errors may occur (data and components do not match), placing high demands on component management. In this embodiment, by setting identification codes on the components to transmit component installation parameters, data transmission can be carried out easily, accurately, and reliably, ensuring smooth assembly.

[0047] In addition, at this time, parts can be formed in places that are far from the assembly area and difficult to communicate with the assembly process controller, thus improving production flexibility.

[0048] As a possible implementation of the second aspect, the component installation parameters and / or vehicle body installation parameters are stored in a process server, and the component installation parameters and / or vehicle body installation parameters are obtained from the process server during the assembly process.

[0049] In this way, it can be applied to automated production lines and facilitates data management.

[0050] As a possible implementation of the second aspect, the component installation parameters obtained through the third measurement process are compared with a preset component installation parameter benchmark, and the result of the comparison is displayed.

[0051] This allows operators to grasp the actual molding status of parts and quickly find the cause when problems occur (such as the aforementioned "mismatch").

[0052] As a possible implementation of the second aspect, the forming parameters of the component-side mounting portion include fixture position parameters.

[0053] That is, by adjusting the position of the fixture in the part forming process according to the position information, the actual forming condition of the vehicle body side mounting part can be easily adjusted.

[0054] As a possible implementation of the second aspect, adjusting the molding parameters of the component-side mounting portion in the molding parameters of the component according to the location information includes: sending the location information to the terminal device in the component molding process and displaying it; manually adjusting the molding parameters of the component-side mounting portion in the molding parameters of the component according to the received location information; or controlling the equipment in the component molding process to automatically adjust the molding parameters of the component-side mounting portion in the molding parameters of the component according to the received location information.

[0055] In this way, by sending the location information to the terminal equipment in the component forming process and displaying it, the information can be displayed more intuitively. As for the adjustment of the forming parameters of the component side mounting part in the forming parameters, it can be adjusted by automatic control of intelligent equipment or by manual adjustment. Regardless of the adjustment method, the forming parameters can be adjusted based on the assembly status data, thereby achieving an assembly status that is closer to the drawing.

[0056] As a possible implementation of the first aspect, adjusting the molding parameters of the component-side mounting portion in the molding parameters of the component according to the position information includes: calculating a correction value of the molding parameters of the component-side mounting portion in the molding parameters of the component according to the position information, and adjusting the molding parameters of the component-side mounting portion in the molding parameters of the component based on the correction value.

[0057] In this way, the correction value is calculated based on the position information, and the forming parameters of the component side mounting part in the forming parameters of the component can be corrected, so that the forming parameters gradually approach the optimal assembly state, which can quickly and well improve the assembly effect and assembly accuracy.

[0058] As a possible implementation of the second aspect, adjusting the forming parameters of the component-side mounting portion in the forming parameters of the component according to the position information includes: comparing the position information with a preset reference value to obtain a deviation value, and correcting the forming parameters of the component-side mounting portion based on the deviation value. Thus, based on the deviation value between the position information and the preset reference value, the assembly tendency of the vehicle body and components can be clearly identified, such as tilting in a certain direction or overall rightward offset. Based on this deviation value, in order to obtain an assembly state closer to the drawing, the forming parameters of the component-side mounting portion can be corrected, which can quickly and effectively improve the assembly effect and assembly accuracy.

[0059] As a possible implementation of the second aspect, the position information is the position information of a single component in an assembled state relative to the vehicle body, or the position information is the average of the position information of multiple components in an assembled state relative to the vehicle body; and / or, the deviation value is the deviation value between the position information of a single component in an assembled state relative to the vehicle body and a preset reference value, or the deviation value is the average of the deviation values ​​between the position information of multiple components in an assembled state relative to the vehicle body and a preset reference value. When adjusting based on the measurement results of a single component in an assembled state with the vehicle body, a rapid response and timely adjustment are possible. When adjusting based on the cumulative average of the measurement results of multiple components in an assembled state with the vehicle body, the assembly tendency is more accurately obtained through multiple accumulations, and adjustments are made based on the average value, which can suppress inappropriate frequent adjustments and avoid the influence of some unconventional data on the adjustment.

[0060] As a possible implementation of the second aspect, when the number of position information or the number of deviation values ​​reaches a preset number, the forming parameters of the component-side mounting part are corrected based on the deviation values; or when a preset time period is reached, the forming parameters of the component-side mounting part are corrected based on the deviation values.

[0061] Using the above method, the forming parameters of the mounting part on the component side can be corrected by the deviation value. However, the correction cycle can be based on the production line needs and can be done in various ways. For example, the correction can be done by setting a preset quantity or a preset time. By accumulating a certain quantity or time, a more accurate assembly tendency can be obtained, and correction can be made based on this. This can avoid the possible errors caused by individual parts and avoid frequent adjustments.

[0062] As one possible implementation of the first or second aspect, the component is made of resin.

[0063] Since resin-made parts (mounting parts) are difficult to assemble manually or through post-molding adjustments, improving the detection and assembly accuracy in automated assembly is of paramount importance.

[0064] As one possible implementation of the first or second aspect, the component is a tailgate.

[0065] By using the above method, the assembly precision of the tailgate and vehicle body can be improved on the production line, ensuring the smooth execution of the assembly. Attached Figure Description

[0066] Figure 1 This is an explanatory diagram of a vehicle manufacturing method provided by one embodiment of the present invention;

[0067] Figure 2 The diagram shown is an explanatory diagram of a vehicle manufacturing method according to another embodiment of the present invention;

[0068] Figure 3 This is an explanatory diagram of yet another embodiment of the present invention;

[0069] Figure 4 for Figure 3 The diagram shown is a structural schematic of the vehicle body involved in this embodiment;

[0070] Figure 5 for Figure 3 The diagram shown is a structural schematic of the tailgate involved in this embodiment. Detailed Implementation

[0071] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0072] Figure 1 This is an explanatory diagram illustrating a method for manufacturing a vehicle according to one embodiment of the present invention. The vehicle includes a body and components mounted on the body. The body has a body-side mounting portion, and the components have component-side mounting portions, which are mounted on the body-side mounting portions. Examples of components include doors, engine hoods, and fenders. Doors include, for example, side doors and tailgates.

[0073] like Figure 1 As shown, the vehicle manufacturing method of this embodiment mainly includes a vehicle body forming process S110, a vehicle body measurement process (first measurement process) S120, an assembly process S130, an assembly measurement process (second measurement process) S140, and a vehicle body forming parameter adjustment process S150.

[0074] These processes can be controlled by one or more controllers. As an example, the body forming process S110 and the body measurement process S120 are controlled by the body forming controller, the assembly process S130 and the assembly measurement process S140 are controlled by the assembly controller, and the body forming parameter adjustment process S150 is also controlled by the body forming controller.

[0075] These procedures are described in detail below.

[0076] In the body forming process S110, the body is formed according to the body forming parameters. The body includes, for example, various crossbeams, longitudinal beams, pillars, and reinforcing plates. In the body forming process S110, these crossbeams, longitudinal beams, pillars, and reinforcing plates are connected together through operations such as welding and threaded connections to form the body. Furthermore, the forming method in the body forming process S110 may also include mold forming. Specifically, as described above, the body has a side mounting portion for mounting components, such as bolts (bolt holes), mounting holes, snap holes, and hinge mounting positions. The forming parameters here include, for example, the position and dimensions of each component, the position of the fixture, the tightness of the threads, and the position of the welds.

[0077] In the vehicle body measurement process S120, the vehicle body formed in the vehicle body forming process S110 is measured to obtain vehicle body mounting parameters for the side mounting portion. As mentioned above, this side mounting portion includes, for example, bolts, mounting holes, snap-fit ​​holes, and hinge mounting positions, for mounting components. Here, the vehicle body mounting parameters are used as a basis for controlling assembly operations in subsequent assembly processes, including, for example, the positions of bolts, mounting holes, snap-fit ​​holes, and the dimensions of mating edges. Furthermore, various measurement methods can be used, and no limitation is made here; for example, laser detection can be employed.

[0078] Furthermore, the body measurement process S120 can be performed at the same location as the body forming process S110, i.e., the body forming work area. In this case, the two processes can be considered as one process. Additionally, it can be understood that the body measurement process S120 can also be performed at other locations.

[0079] In this embodiment, optionally, the vehicle body installation parameters obtained in the vehicle body measurement process S120 are compared with a preset vehicle body installation parameter reference. If they match, the assembly process is executed. That is, the execution of an assembly process for a particular vehicle body is conditional upon the measured vehicle body installation parameters matching its reference. If the vehicle body installation parameters do not match the preset vehicle body installation parameter reference, the assembly process will not be executed for that vehicle body. For example, it may not be transported to the assembly work area where the assembly process S130 is performed; in this case, it can still be repaired to meet the reference requirements. It should be noted that although the execution of an assembly process for a particular vehicle body is conditional upon the measured vehicle body installation parameters matching its reference, other processes may be included between the vehicle body measurement process S120 and the assembly process before the assembly process is executed.

[0080] This avoids discovering that assembly is impossible during actual assembly, ensuring the smooth execution of the assembly operation.

[0081] Here, "matching" means, for example, that the difference between the vehicle body installation parameters and the preset vehicle body installation parameter benchmark is within a preset threshold. Of course, other methods are also possible. In this way, by comparing the difference with the preset threshold, it is easy and quick to determine whether the formed vehicle body meets the assembly requirements, thereby deciding whether to proceed to the assembly process.

[0082] In this embodiment, optionally, when the vehicle body installation parameters do not match the preset vehicle body installation parameter benchmark, the equipment in the vehicle body forming process is adjusted according to the vehicle body installation parameters and the vehicle body installation parameter benchmark to correct the vehicle body, specifically, for example, by adjusting the position of the fixture.

[0083] After the vehicle body is formed, the installation parameters can be compared with preset installation parameter benchmarks to determine whether the formed vehicle body meets the assembly requirements. If the requirements are not met, they can be detected and corrected in time, thus preventing vehicles that do not meet the requirements from entering the assembly process. This ensures that all vehicles entering the assembly process can be assembled smoothly, preventing production line stoppages due to assembly failures and improving overall assembly efficiency. Here, "mismatch" means, for example, that the difference between the vehicle body installation parameters and the preset installation parameter benchmarks exceeds a preset threshold.

[0084] In this embodiment, optionally, a preset threshold is adjusted based on the position information, and the adjusted preset threshold is less than or equal to the original preset threshold. Thus, through gradual adjustment, the preset threshold gradually decreases, and the component installation parameters gradually approach the preset component installation parameter reference. This allows a formed vehicle body that more closely matches the preset vehicle body installation parameter reference or drawing data to be transported to the assembly process S130, thereby obtaining an assembly result that more closely resembles the drawing.

[0085] In this embodiment, optionally, the vehicle body installation parameters are compared with a preset vehicle body installation parameter benchmark, and the result of the comparison is displayed.

[0086] This allows operators to grasp the actual forming status of the vehicle body, and to quickly find the cause when problems occur (such as the aforementioned "mismatch").

[0087] The results can be displayed, for example, on a monitor set up in the molding area, or in other locations.

[0088] In assembly process S130, components are assembled onto the vehicle body according to the vehicle body mounting parameters and the component mounting parameters for the component side mounting parts, thus forming an assembly of components and the vehicle body. For example, the bolt mounting parts on both sides are aligned according to the bolt mounting position information on the vehicle body side and the bolt mounting position information on the door side, and then fixed with bolts.

[0089] Here, it can be understood that before the assembly operation, it is necessary to obtain the component installation parameters. There are several different ways to obtain these parameters. For example, they can be obtained by inspecting the components, reading data stored in the process server, communicating with other controllers, or scanning the identification code (barcode, QR code, etc.) set on the door, as will be done later.

[0090] In the assembly measurement process S140, the assembly (i.e., the assembly of parts and the vehicle body) obtained through the assembly process S130 is measured to obtain the positional information of the parts relative to the vehicle body in the assembled state, thereby obtaining the assembly tendency of the vehicle body and the parts. Here, the positional information of the parts relative to the vehicle body includes, for example, the gap dimensions between the parts and the vehicle body in various directions, or the degree of inclination of the part's centerline relative to the front-back or left-right directions. In addition, the specific measurement method is not limited; for example, laser measurement can be used.

[0091] Furthermore, the assembly measurement process S140 can be performed in the assembly area, which is also the execution site of the assembly process S130; in this case, the two can be considered as one process. Additionally, it can be understood that the assembly measurement process S140 can also be performed in other locations.

[0092] In the vehicle body forming parameter adjustment process S150, the forming parameters of the vehicle body side mounting part are adjusted at least according to the position information obtained in the assembly measurement process S140.

[0093] In other words, the molding parameters of the vehicle body side mounting part used in the vehicle body molding process S110 are adjusted and updated, so that the vehicle body side mounting part is molded according to the adjusted molding parameters in subsequent molding processes. In this way, by adjusting the molding parameters of the vehicle body in subsequent molding (production) according to the assembly state of the assembled parts relative to the vehicle body, feedback is provided to the vehicle body molding process S110, thereby improving assembly accuracy, ensuring smooth assembly, and obtaining an assembly result that is closer to the reference.

[0094] In addition, in this embodiment, the location information is sent to the terminal device in the vehicle body forming process S110 and displayed, which can make the information more intuitive. As for the adjustment of the forming parameters of the vehicle body side mounting part in the forming parameters of the vehicle body, it can be adjusted by automatic control of intelligent equipment or by manual adjustment. Regardless of the adjustment method, the forming parameters of the vehicle body side mounting part in the forming parameters of the vehicle body can be adjusted based on the assembly state data, thereby achieving an assembly state that is closer to the drawing.

[0095] Furthermore, in this embodiment, the specific adjustment method for the molding parameters can be based on the measurement results of a single assembly, allowing for rapid response and timely adjustment. Alternatively, adjustments can be made based on the measurement results of multiple assemblies. Through accumulation over multiple iterations, assembly tendencies can be more accurately obtained, and adjustments can be made based on the average value. This can suppress inappropriate frequent adjustments and avoid the influence of unconventional data on the adjustments. For example, the measurement results in S140 can be stored and accumulated, and the stored multiple measurement results can be statistically analyzed to obtain an average value. This average value is then compared with a reference value (such as a drawing value or mold value) to obtain a deviation value. Based on this deviation value, a correction value for the molding parameters of the vehicle body side mounting part can be obtained, and the molding parameters of the vehicle body side mounting part can be corrected according to this correction value. Alternatively, the deviation values ​​between each assembly result and the reference value can be calculated separately, and the multiple deviation values ​​can be statistically analyzed to calculate their average value. The correction value for the molding parameters of the vehicle body side mounting part can be obtained based on this average value, and the molding parameters of the vehicle body side mounting part can be corrected according to this correction value.

[0096] In addition, in this embodiment, as a specific method for adjusting the molding parameters, the correction value of the molding parameters of the vehicle body side mounting part can be directly calculated based on the position information of the measurement results of one or more assembly steps. This correction value is then fed back to the terminal device in the vehicle body molding process S110 and displayed. This allows the equipment to automatically correct the molding parameters of the vehicle body side mounting part based on the correction value. Of course, in some cases, the molding parameters of the vehicle body side mounting part can also be corrected manually. This allows the molding parameters to gradually approach the optimal assembly state, rapidly and effectively improving the assembly effect and assembly accuracy.

[0097] Furthermore, regarding the amount and cycle of statistical analysis data, for example, when the number of stored measurement results reaches a preset quantity, statistical analysis is performed on these measurement results, and then the stored measurement results are cleared and the previous process is repeated. Alternatively, a preset time unit can be used to periodically perform statistical analysis on the measurement results stored within the preset time period. In this case, it can be understood that the component forming parameter adjustment process S150 is not performed immediately after each assembly process of the vehicle body and components. In this way, through the accumulation of a certain number or time, a more accurate assembly tendency can be obtained, and corrections can be made based on this, avoiding the potential erroneous effects of individual components and avoiding inappropriate and frequent adjustments.

[0098] Furthermore, the statistical analysis and calculation of correction values ​​can be performed by the controller executing assembly process S130, or by the controller executing body forming process S110. Alternatively, some processing can be performed by the controller executing assembly process S130, and other processing by the controller executing body forming process S110. Or, a separate controller can be set up for these processes.

[0099] Optionally, the vehicle manufacturing method also includes a painting process for painting the vehicle body, and the vehicle body measurement process S120 is performed before the painting process. That is, other processes may also be included between the vehicle body measurement process S120 and the assembly process S130. That is, after the vehicle body measurement process S120 is completed, if it is determined that the assembly process S130 can be performed, the formed vehicle body enters the painting process, and then enters the assembly process to complete the assembly with the parts.

[0100] This avoids the problem of inaccurate measurements or unmeasurable data on the vehicle body surface due to light interference after the coating is applied, which would affect the subsequent assembly accuracy. Measuring before the painting process yields more accurate data.

[0101] Optionally, the body forming process includes a process of welding the body in the welding area, and the body measurement process S120 is performed in the welding area.

[0102] Therefore, measurements are more convenient in the welding area. Furthermore, if the measured vehicle body installation parameters do not match the preset baseline, the equipment in the vehicle forming process can be adjusted based on the matching result. This allows for repairs to be made in the welding area until the vehicle body installation parameters match the preset baseline, preventing the need to return to the welding area for subsequent issues and avoiding inefficiencies and production line downtime caused by rework. Moreover, welding typically occurs before painting; therefore, measurements in the welding area avoid the inability to measure or obtain inaccurate data after the coating has formed on the vehicle body due to lighting conditions, which could affect subsequent assembly.

[0103] In this embodiment, optionally, during the assembly process, the component installation parameters can be obtained by scanning the identification code set on the component.

[0104] Sometimes, the assembly area may store multiple components simultaneously. Therefore, if the component installation parameters are obtained through electronic storage or other methods, errors may occur (data and components do not match), placing high demands on component management. In this embodiment, by setting identification codes on the components to transmit component installation parameters, data transmission can be carried out easily, accurately, and reliably, ensuring smooth assembly.

[0105] In addition, at this time, parts can be formed in places that are far from the assembly area and difficult to communicate with the assembly process controller, thus improving production flexibility.

[0106] In this embodiment, the molding parameters of the vehicle body side mounting portion include, for example, fixture position parameters. That is, by adjusting the fixture position of the vehicle body based on the position information obtained in the assembly measurement process S140, the actual molding condition of the vehicle body side mounting portion can be easily adjusted.

[0107] Figure 2 The diagram shown is an explanatory illustration of a vehicle manufacturing method according to another embodiment of the present invention. Figure 2 In this document, the same reference numerals are used for content that is the same as in the above embodiments, and detailed descriptions thereof are omitted where appropriate.

[0108] like Figure 2 As shown, the vehicle manufacturing method of this embodiment includes: a component forming process S160, a component measurement process (third measurement process) S170, an assembly process S130, an assembly measurement process S140, and a component forming parameter adjustment process S180. The assembly process S130 and the assembly measurement process S140 are basically the same as those in the above embodiment, and therefore will not be described in detail below.

[0109] In the component forming process S160, the component is formed according to its forming parameters. Specific forming processes include, for example, mold forming, welding, threaded connection, etc. In particular, the component has a component-side mounting part, which is used for mounting to the vehicle body, and includes, for example, bolt holes, mounting holes, snap holes, door lock mounting parts, hinge mounting positions, etc.

[0110] In the component measurement process S170, the component is measured to obtain component installation parameters for mounting parts such as bolts, mounting holes, snap holes, and hinge mounting positions. These component installation parameters are used as a basis for controlling assembly operations in subsequent assembly processes; for example, they include the positional dimensions of bolt holes, mounting holes, and snap holes. Furthermore, various measurement methods can be used, and no limitation is made here; for example, laser detection can be employed.

[0111] Furthermore, the component measurement process S170 can be performed within the component forming process S160, meaning they can belong to the same process. Of course, they can also be performed independently in different locations.

[0112] In this embodiment, optionally, the component installation parameters obtained through the component measurement process S170 are compared with a preset component installation parameter benchmark, and when the two match, the assembly process is performed.

[0113] In other words, the assembly process for a certain component is conditional upon the measured component installation parameters matching its reference. If the component's installation parameters do not match the preset component installation parameter reference, the assembly process will not be performed on that component. For example, it may not be transported to the assembly work area where assembly process S130 is performed, but it can still be repaired to meet the reference requirements.

[0114] This avoids discovering that assembly is impossible during actual assembly, ensuring the smooth execution of the assembly operation.

[0115] Here, "matching" means, for example, that the difference between the component installation parameters and its reference is within a preset threshold (range). Of course, other methods are also possible. In this way, by comparing the difference with the preset threshold, it is easy and quick to determine whether the formed vehicle body meets the assembly requirements, thereby deciding whether to proceed to the assembly process.

[0116] In this embodiment, optionally, when the component installation parameters do not match the preset component installation parameter reference, the equipment in the component forming process is adjusted to correct the component based on the component installation parameters and the component installation parameter reference. Specifically, this could involve adjusting the position of the fixture. Here, "mismatch" means, for example, that the difference between the component installation parameters and the reference is outside a preset threshold.

[0117] After the parts are formed, the assembly parameters can be compared with the preset assembly parameter benchmarks to determine whether the formed parts meet the assembly requirements. If the assembly requirements are not met, they can be detected and corrected in time, thereby preventing parts that do not meet the assembly requirements from entering the assembly process. This ensures that all parts entering the assembly process can be assembled smoothly, preventing production line stoppages due to assembly failures and improving overall assembly efficiency.

[0118] In this embodiment, optionally, a preset threshold can be adjusted based on the location information, and the adjusted preset threshold is less than or equal to the original preset threshold. Thus, through gradual adjustment, the preset threshold gradually decreases, and the component installation parameters gradually approach the preset component installation parameter reference. This allows a formed vehicle body that more closely matches the preset vehicle body installation parameter reference or drawing data to be transported to the assembly process S130, thereby obtaining an assembly result that more closely resembles the drawing.

[0119] In this embodiment, optionally, the component installation parameters obtained in the component measurement process S170 are compared with a preset component installation parameter benchmark, and the result of the comparison is displayed.

[0120] This allows operators to monitor the actual molding status of parts and quickly identify the cause when problems arise (such as the aforementioned "mismatch"). The results can be displayed, for example, on a monitor set up in the molding area, or in other locations.

[0121] In assembly process S130, the components are assembled onto the vehicle body according to the vehicle body mounting parameters and component mounting parameters for the vehicle body side mounting part.

[0122] Here, it can be understood that before the assembly operation, it is necessary to obtain the vehicle body installation parameters. The specific methods of obtaining these parameters include, for example, obtaining them by detecting the vehicle body, reading data stored in the process server, or obtaining them by communicating with other controllers.

[0123] In the assembly measurement process S140, the positional information of the components relative to the vehicle body in the assembled state is measured. Furthermore, the assembly measurement process S140 can be performed at the same location as the assembly process S130, i.e., the assembly area; in this case, the two can be considered as a single process. Additionally, it can be understood that the assembly measurement process S140 can also be performed at other locations.

[0124] In the component molding parameter adjustment process S180, the molding parameters of the component-side mounting portion are adjusted based on the position information. In other words, the molding parameters of the component-side mounting portion used in the component molding process S160 are adjusted and updated, so that the component-side mounting portion is molded according to the adjusted molding parameters in subsequent molding processes. Thus, by adjusting the molding parameters of the subsequently molded (produced) components based on the assembled state of the component relative to the vehicle body, feedback is provided to the component molding process S160, thereby improving assembly accuracy, ensuring smooth assembly, and obtaining an assembly result closer to the reference.

[0125] In addition, in this embodiment, the location information is sent to the terminal device in the component forming process S160 and displayed, which can make the information more intuitive. As for the adjustment of the forming parameters of the component side mounting part in the forming parameters of the component, it can be adjusted by automatic control of the intelligent device or by manual adjustment. Regardless of the adjustment method, the forming parameters of the component side mounting part can be adjusted based on the position information data after assembly, thereby achieving an assembly state that is closer to the drawing.

[0126] Furthermore, in this embodiment, the specific adjustment method for the molding parameters can be based on the measurement results of a single assembly, allowing for rapid response and timely adjustment. Alternatively, adjustments can be made based on the measurement results of multiple assemblies. This allows for more accurate acquisition of assembly tendencies through multiple accumulations, and adjustments based on the average value can suppress inappropriate frequent adjustments and avoid the influence of unconventional data on the adjustments. For example, the measurement results in S140 can be stored and accumulated, and the stored multiple measurement results can be statistically analyzed to obtain an average value. This average value is then compared with a reference value (such as a drawing value or mold value) to obtain a deviation value. Based on this deviation value, a correction value for the molding parameters of the vehicle body side mounting part can be obtained, and the molding parameters of the vehicle body side mounting part can be corrected according to this correction value. Alternatively, the deviation values ​​between each assembly result and the reference value can be calculated separately, and the multiple deviation values ​​can be statistically analyzed to calculate their average value. The correction value for the molding parameters of the vehicle body side mounting part can be obtained based on this average value, and the molding parameters of the vehicle body side mounting part can be corrected according to this correction value. The above explanation uses the average value as an example; however, the invention is not limited to this, and the median value can also be used.

[0127] In addition, in this embodiment, as a specific method for adjusting the molding parameters, the correction value of the molding parameters of the component-side mounting part can be directly calculated based on the position information of the measurement results from one or more assembly steps. This correction value is then fed back to the terminal device in the component molding process S160 and displayed. This allows the equipment to automatically correct the molding parameters of the component-side mounting part based on the correction value. Of course, in some cases, the molding parameters of the component-side mounting part can also be corrected manually. This allows the molding parameters to gradually approach the optimal assembly state, rapidly and effectively improving the assembly effect and assembly accuracy.

[0128] Furthermore, regarding the amount and frequency of statistical analysis data, for example, when the number of stored measurement results reaches a preset quantity, statistical analysis is performed on these measurement results, and then the stored measurement results are cleared, and the previous process is repeated. Alternatively, a preset time unit can be used to periodically perform statistical analysis on the measurement results stored within the preset time period. In this case, it can be understood that the component forming parameter adjustment process S180 is not performed immediately after each assembly process of the vehicle body and components. In this way, through the accumulation of a certain number or time, a more accurate assembly tendency can be obtained, and corrections can be made based on this, avoiding the potential erroneous effects of individual components and preventing inappropriate and frequent adjustments.

[0129] Furthermore, the statistical analysis and calculation of correction values ​​can be performed by the controller executing assembly process S130, or by the controller executing part forming process S160. Alternatively, some processing can be performed by the controller executing assembly process S130, and other processing by the controller executing part forming process S160. Or, a separate controller can be set up for these processes.

[0130] In this embodiment, optionally, the vehicle manufacturing method further includes an identification code forming process, in which an identification code representing the component installation parameters obtained in the component measurement process S170 is formed on the component. The identification code forming process can be performed at the same location as the component measurement process S170 and controlled by the same controller.

[0131] By setting identification codes on components to transmit component installation parameters, data transmission can be carried out easily, accurately, and reliably, ensuring smooth assembly.

[0132] In this embodiment, optionally, the forming parameters of the component-side mounting portion include fixture position parameters. That is, the fixture position in the component forming process is adjusted according to the position information obtained in the assembly measurement process S140, thereby making it easy to adjust the actual forming condition of the vehicle body-side mounting portion.

[0133] In this embodiment, the components are made of resin. Typically, resin components (mounting parts) are difficult to assemble manually or through post-molding adjustments, making it crucial to improve the accuracy of detection and assembly during automated assembly to ensure smooth assembly of the components to the vehicle body.

[0134] As a specific example, the tailgate is a component. By using the method described above, the assembly precision of the tailgate and the vehicle body can be improved, ensuring smooth assembly.

[0135] Figure 3 This is an explanatory diagram of yet another embodiment of the present invention. Figure 4 This is a schematic diagram of the vehicle body involved in this embodiment. Figure 5 This is a schematic diagram of the tailgate structure involved in this embodiment. It may be noted that... Figure 4 , Figure 5 Some parts shown are merely schematic and do not represent the actual structure. In the vehicle manufacturing method of this embodiment, the tailgate is installed on the vehicle body. Wherein, as... Figure 4 As shown, the vehicle body 10 (only the rear is shown in the figure) has left and right hinge bolt mounting parts 11L, 11R, lock holes 12, and other vehicle body side mounting parts, such as... Figure 5 As shown, the tailgate 20 has left and right hinge bolt mounting parts 20L and 20R, door lock mounting parts 22, and other tailgate side mounting parts. The tailgate is mounted on the vehicle body by mounting the two mounting parts together.

[0136] like Figure 3 As shown, the vehicle manufacturing method of this embodiment includes a vehicle body forming process S10, a vehicle body measuring process S20, a vehicle body painting process S22, a tailgate forming process S60, a tailgate measuring process S70, a QR code forming process S72, an assembly process S30, an assembly measuring process S40, and an adjustment process S50.

[0137] As an example, the body forming process S10 and the body measurement process S20 are executed in the same location, namely the body forming area, by the same controller. The tailgate forming process S60, the tailgate measurement process S70, and the QR code forming process S72 are executed in the same location, namely the tailgate forming area, by the same controller. The assembly process S30 and the assembly measurement process S40 are executed in the same location, namely the assembly area, by the same controller. The adjustment process S50 is jointly executed by the controllers of the above three parties.

[0138] The specific details of each process are explained below.

[0139] In the body forming process S10, the body is formed according to the body forming parameters. The body may include various crossbeams, longitudinal beams, pillars, and reinforcing plates. In the body forming process S10, these crossbeams, longitudinal beams, pillars, and reinforcing plates are connected together through operations such as welding and threaded connections to form the body. Alternatively, the forming method in the body forming process S10 may also include mold forming. Specifically, as described above, the body has a side mounting portion for mounting components, including, for example, bolts (bolt holes), mounting holes, snap holes, and hinge mounting positions.

[0140] In the vehicle body measurement process S20, the vehicle body formed in the vehicle body forming process S10 is measured to obtain vehicle body installation parameters for the side mounting parts, such as bolts, mounting holes, snap holes, and hinge mounting positions. These vehicle body installation parameters are used as a basis for controlling assembly operations in subsequent assembly processes; for example, they include the positions of bolts, mounting holes, snap holes, and the dimensions of mating edges. As a concrete example, the left-right spacing of mounting holes, the coordinates of the left mounting hole, and the coordinates of the right mounting hole can be measured, for example, with the lock hole position as a reference. Furthermore, a laser detection method can be used for specific measurement methods.

[0141] In addition, the measured vehicle body installation parameters are compared with the preset vehicle body installation parameter benchmark to obtain the deviation value between the two. When the deviation value is within the preset threshold range, it is determined that the two are matched, and the subsequent vehicle body painting process S22 is executed.

[0142] On the other hand, when the deviation exceeds a preset threshold, it is determined that the two are mismatched. The vehicle body is then corrected either in place or back to the previous location of the molding equipment to ensure that the measured vehicle body installation parameters match the vehicle body installation parameter reference. Then, the subsequent process (vehicle body painting process S22 in this embodiment) is executed. Here, "mismatch" means that the deviation between the vehicle body installation parameters and the preset vehicle body installation parameter reference is outside the preset threshold.

[0143] In addition, if the requirements still cannot be met after the modifications, the vehicle body can be scrapped instead of being sent to the assembly area, thus avoiding equipment downtime in the assembly area due to the inability to complete assembly.

[0144] Furthermore, in the vehicle body measurement process S20, the measured vehicle body installation parameters are stored in a server. In subsequent processes, the corresponding controller retrieves these parameters from the server. At this time, the vehicle body installation parameters can be stored in association with the vehicle identification number (VIN) to prevent confusion in later processes and avoid discrepancies between the obtained installation parameters and the actual vehicle body. As a concrete example, the left and right distances of the hinge bolts, the coordinates of the left hinge bolt, and the coordinates of the right hinge bolt can be detected, with the door lock position as a reference.

[0145] In the vehicle body painting process S22, the vehicle body is painted.

[0146] In this embodiment, the vehicle body measurement process S20 is performed in the welding area of ​​the vehicle body forming area, that is, before the vehicle body painting process S22. Therefore, it can be avoided that after the coating is formed on the vehicle body, the surface of the vehicle body may be affected by light, resulting in the inability to measure or inaccurate measurement data, which may affect subsequent assembly.

[0147] In the tailgate forming process S60, components are formed according to the tailgate forming parameters. Specific forming processes include, for example, mold forming, welding, threaded connection, etc. In particular, the tailgate has a tailgate side mounting part, which is used for mounting to the vehicle body, and includes, for example, bolt holes, mounting holes, snap holes, locks, hinges, etc.

[0148] In addition, in this embodiment, the tailgate is made of resin (plastic). It should be understood that "tailgate is made of resin" means that its main body is made of resin, not that its entire structure is made of resin; for example, the lock on the tailgate can be made of metal.

[0149] In the tailgate measurement process S70, the tailgate is measured to obtain tailgate installation parameters for the side mounting parts, such as bolts, mounting holes, and locking holes. These tailgate installation parameters serve as a basis for controlling assembly operations in subsequent assembly processes; for example, they include the position and dimensions of bolt holes, mounting holes, locking holes, and hinge mounting positions. Furthermore, regarding specific measurement methods, laser detection can be used, for example.

[0150] Furthermore, the measured tailgate installation parameters are compared with a preset tailgate installation parameter reference to obtain the deviation value between the two. When the deviation value is within a preset threshold range, it is determined that the two are matched, and the subsequent QR code forming process S72 is executed. On the other hand, when the deviation value exceeds the preset threshold range, it is determined that the two are mismatched, and the tailgate is corrected either in place or returned to the previous forming equipment location to make the measured tailgate installation parameters match the tailgate installation parameter reference, and then the subsequent process (QR code forming process S72 in this embodiment) is executed. Here, "mismatch" means that the deviation value between the tailgate installation parameters and the preset tailgate installation parameter reference is outside the preset threshold.

[0151] In addition, if the requirements still cannot be met after the correction, the tailgate can be discarded instead of being sent to the assembly area to avoid equipment downtime in the assembly area due to the inability to complete assembly.

[0152] In the QR code generation process S72, a QR code is generated based on the tailgate installation parameters measured in the tailgate measurement process S70, and this QR code is then affixed to the tailgate. In subsequent processes, the tailgate installation parameters can be obtained by scanning this QR code.

[0153] In assembly process S30, the robot arm, fastening tools, etc. are controlled to assemble the parts onto the vehicle body according to the vehicle body mounting parameters and tailgate mounting parameters for the side mounting part.

[0154] Here, the vehicle body installation parameters are obtained from the server, and the tailgate installation parameters are obtained by scanning the QR code on the tailgate.

[0155] In the assembly measurement process S40, the position information of the tailgate relative to the vehicle body in the assembled state is measured. In this embodiment, this position information can be measured in both the open and / or closed states of the tailgate. Furthermore, this position information includes, for example, the gap between the tailgate and the vehicle body in the closed state, specifically, the left-right gap, the upper gap, and the lower gap.

[0156] In addition, the location information is stored in memory.

[0157] In adjustment process S50, the stored measurement results of multiple sets of assembled vehicle body and tailgate (i.e., the aforementioned position information) are compared with reference values ​​(such as required values ​​or drawing values), statistical analysis is performed to obtain deviation values, and based on these deviation values, correction values ​​for the forming parameters of the vehicle body side mounting part and / or tailgate side mounting part are calculated. The forming parameters of the vehicle body side mounting part and / or tailgate side mounting part are then corrected and adjusted according to these correction values. The aforementioned statistical analysis results, deviation values, and / or correction values ​​can be sent to and displayed on the terminal equipment in the vehicle body forming process S110 or the component forming process S160. The correction or adjustment of the forming parameters of the vehicle body side mounting part and / or tailgate side mounting part can be performed manually or automatically, depending on the production conditions or production line settings.

[0158] Therefore, in the subsequent molding process of the vehicle body and / or tailgate, molding is carried out according to the adjusted molding parameters. This improves assembly accuracy and ensures smooth assembly.

[0159] As a specific example of the above adjustment, when the left and right gaps between the tailgate and the vehicle body are inconsistent, the correction value of the hinge bolt position on one side of the left and right sides of the door is determined based on the difference in the left and right gaps. The position of the hinge bolt is moved by a few mm in the left and right direction by the correction value in order to eliminate the difference in the left and right gaps between the tailgate and the vehicle body.

[0160] Furthermore, a preset threshold can be adjusted based on the position information. The stored measurement results of multiple sets of assembled vehicle bodies and tailgates (i.e., the aforementioned position information) are compared with reference values ​​(such as required values ​​or drawing values). Statistical analysis is performed, and the forming parameters of the vehicle body-side mounting portion and / or tailgate-side mounting portion are corrected and adjusted based on the correction values. This allows the forming tailgate or vehicle body's mounting parameters to increasingly approximate the drawing data or mounting parameter reference. By adjusting the preset threshold based on the position information, the preset threshold gradually decreases, and the vehicle body / tailgate's mounting parameters gradually approach the preset mounting parameter reference. The formed vehicle body / tailgate, which is closer to the preset mounting parameter reference or drawing data, can then be transported to assembly process S130, resulting in an assembly result that more closely resembles the drawing.

[0161] Furthermore, regarding the amount and frequency of statistical analysis data, for example, when the number of stored measurement results reaches a preset quantity, statistical analysis is performed on these measurement results, and then the stored measurement results are cleared and the previous process is repeated. Alternatively, a preset time unit can be used to periodically perform statistical analysis on the measurement results stored within the preset time period. In this case, it can be understood that the adjustment process S50 is not performed immediately after each assembly process of the vehicle body and parts.

[0162] Furthermore, the statistical analysis and calculation of correction values ​​can be performed by the controller executing assembly process S30, or by the controller executing body forming process S10 and / or tailgate forming process S60. Alternatively, some processing can be performed by the controller executing assembly process S30, and other processing can be performed by the controller executing body forming process S10 and / or tailgate forming process S60. Or it can be performed by other controllers.

[0163] By adopting the embodiment described above, not only can the assembly of the vehicle body and the tailgate be determined based on the measurement results of the vehicle body and the tailgate respectively (if they do not match in S20 and S70, they are not sent to the assembly area, "first processing"), but the assembly is also inspected after assembly to obtain the installation position information of the assembled tailgate relative to the vehicle body. The forming parameters of the vehicle body and / or tailgate are adjusted according to the installation position information ("second processing"), thereby improving the assembly accuracy more reliably, ensuring the smooth progress of assembly, and achieving good automatic assembly.

[0164] In addition, as described above, this embodiment provides a method for manufacturing a vehicle. It is understood that a production line and a control device (one or more controllers mentioned above) for performing the method for manufacturing the vehicle are also provided.

[0165] The method and apparatus are based on the same concept. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and the method can be referred to each other, and the repeated parts will not be described again.

[0166] In addition, the device's functions can be implemented by a processor executing programs (software), or by hardware such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit), or by a combination of software and hardware.

[0167] Therefore, it can be understood that this embodiment can also provide a computer program, a computer-readable storage medium storing the computer program, and a computing device having the computer-readable storage medium, which can execute the above-described vehicle manufacturing method and its necessary and optional contents by having a processor of the computer or computing device execute the computer program.

[0168] Unless otherwise defined, all technical and scientific terms used throughout this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning as stated in this application or derived from the content described herein shall prevail. Furthermore, the terminology used in this description is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0169] The aforementioned servers can be cloud servers or local servers; they can be physical servers or virtual servers.

[0170] The terms “first, second, third, etc.” or similar terms such as module A, module B, and module C used throughout this application are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that a specific order or sequence can be interchanged where permitted.

[0171] Throughout this application, the reference numerals for steps, such as S10, S20, etc., do not necessarily indicate that these steps will be performed. Where permissible, the order of the steps may be interchanged or performed simultaneously.

[0172] The term "comprising" as used throughout this application should not be construed as limiting itself to the contents listed below; it does not exclude other structural elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned technical features, integrals, steps, or components, but does not exclude the presence or addition of one or more other technical features, integrals, steps, or components and groups thereof.

[0173] It is understood that those skilled in the art can combine the features mentioned in one or more embodiments throughout this application with features from other embodiments in any appropriate manner to implement this application.

[0174] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the technical concept of this application, all of which fall within the scope of protection of this application.

Claims

1. A method for manufacturing a vehicle, the vehicle comprising a body and components, the body having a body-side mounting portion, the components having component-side mounting portions, the component-side mounting portions being mounted on the body-side mounting portions, characterized in that, The manufacturing method of the vehicle includes the following steps in sequence: The vehicle body forming process involves forming the vehicle body according to the vehicle body forming parameters. The first measurement step involves measuring the vehicle body to obtain vehicle body mounting parameters for the side mounting portion; the vehicle body mounting parameters obtained through the first measurement step are compared with a preset vehicle body mounting parameter benchmark, and if they match, the assembly step is performed. The assembly process involves assembling the components onto the vehicle body according to the vehicle body mounting parameters and the component mounting parameters for the component side mounting portion. The second measurement step involves measuring the positional information of the components relative to the vehicle body in their assembled state. The forming parameters of the vehicle body side mounting part are adjusted according to the position information.

2. The method for manufacturing a vehicle according to claim 1, characterized in that, The vehicle body installation parameters obtained through the first measurement process are compared with the preset vehicle body installation parameter benchmark. If the two do not match, the equipment in the vehicle body forming process is adjusted to correct the vehicle body according to the vehicle body installation parameters and the vehicle body installation parameter benchmark.

3. The method for manufacturing a vehicle according to claim 2, characterized in that, The two are matched if the difference between the vehicle body installation parameters and the preset vehicle body installation parameter benchmark is within a preset threshold. And / or the mismatch between the two is when the difference between the vehicle body installation parameters and the preset vehicle body installation parameter benchmark is outside the preset threshold.

4. The method for manufacturing a vehicle according to claim 3, characterized in that, The preset threshold is adjusted according to the location information, and the adjusted preset threshold is less than or equal to the original preset threshold.

5. The method for manufacturing a vehicle according to claim 1, characterized in that, The vehicle body installation parameters obtained through the first measurement process are compared with a preset vehicle body installation parameter benchmark, and the result of the comparison is displayed.

6. The method for manufacturing a vehicle according to claim 1, characterized in that, It also includes a painting process for painting the vehicle body. The first measurement step is performed before the coating step.

7. The method for manufacturing a vehicle according to claim 1, characterized in that, The vehicle body forming process includes the process of welding the vehicle body in the welding work area. The first measurement procedure is performed in the welding work area.

8. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, In the assembly process, the installation parameters of the components are obtained by scanning the identification codes set on the components.

9. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, The component installation parameters and / or the vehicle body installation parameters are stored in the process server. In the assembly process, the component installation parameters and / or the vehicle body installation parameters are obtained from the process server.

10. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, The forming parameters of the vehicle body side mounting part include the fixture position parameters.

11. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, Adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the location information includes: sending the location information to the terminal equipment in the vehicle body molding process and displaying it; manually adjusting the molding parameters of the vehicle body side mounting part according to the received location information; or controlling the equipment in the vehicle body molding process to automatically adjust the molding parameters of the vehicle body side mounting part according to the received location information.

12. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, Adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the location information includes: calculating a correction value of the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the location information, and adjusting the molding parameters of the vehicle body side mounting part based on the correction value.

13. A method for manufacturing a vehicle according to any one of claims 1-7, characterized in that, Adjusting the molding parameters of the vehicle body side mounting part in the molding parameters of the vehicle body according to the position information includes: comparing the position information with a preset reference value to obtain a deviation value, and correcting the molding parameters of the vehicle body side mounting part based on the deviation value.

14. The method for manufacturing a vehicle according to claim 13, characterized in that, The position information is the position information of a single component in an assembled state relative to the vehicle body, or the position information is the average of the position information of multiple components in an assembled state relative to the vehicle body. And / or, the deviation value is the deviation of the position information of a single component in an assembled state relative to the vehicle body from a preset reference value, or the deviation value is the average of the deviation values ​​of the position information of multiple components in an assembled state relative to the vehicle body from a preset reference value.

15. The method for manufacturing a vehicle according to claim 13, characterized in that, When the number of the location information or the number of the deviation values ​​reaches a preset number, the forming parameters of the vehicle body side mounting part are corrected based on the deviation values; Alternatively, when a preset time period is reached, the forming parameters of the vehicle body side mounting part are corrected based on the deviation value.

16. A method for manufacturing a vehicle, the vehicle comprising a body and components, the body having a body-side mounting portion, the components having component-side mounting portions, the component-side mounting portions being mounted on the body-side mounting portions, characterized in that, The manufacturing method of the vehicle includes the following steps in sequence: The component forming process involves forming the component according to its forming parameters. The third measurement step involves measuring the component to obtain component mounting parameters for the component's mounting portion; the component mounting parameters obtained through the third measurement step are compared with a preset component mounting parameter benchmark, and if they match, the assembly step is performed. The assembly process involves assembling the components onto the vehicle body according to the vehicle body mounting parameters of the vehicle body side mounting portion and the component mounting parameters. The second measurement step involves measuring the positional information of the components relative to the vehicle body in their assembled state. The molding parameters of the component side mounting part in the molding parameters of the component are adjusted according to the location information.

17. The method for manufacturing a vehicle according to claim 16, characterized in that, The component installation parameters obtained through the third measurement process are compared with the preset component installation parameter benchmark. If the two do not match, the equipment in the component forming process is adjusted to correct the component according to the component installation parameters and the component installation parameter benchmark.

18. The method for manufacturing a vehicle according to claim 17, characterized in that, The two are matched if the difference between the component installation parameters and the preset component installation parameter benchmark is within a preset threshold. And / or the mismatch between the two is when the difference between the component installation parameters and the preset component installation parameter benchmark is outside the preset threshold.

19. The method for manufacturing a vehicle according to claim 18, characterized in that, The preset threshold is adjusted according to the location information, and the adjusted preset threshold is less than or equal to the original preset threshold.

20. The method for manufacturing a vehicle according to claim 16, characterized in that, The third measurement process is performed in the area where the component molding process ends during the component molding process.

21. The method for manufacturing a vehicle according to claim 16, characterized in that, It also includes an identification code forming process, in which an identification code is formed on the component to represent the component's installation parameters according to the component's installation parameters.

22. The method for manufacturing a vehicle according to claim 16, characterized in that, The component installation parameters and / or the vehicle body installation parameters are stored in the process server. In the assembly process, the component installation parameters and / or the vehicle body installation parameters are obtained from the process server.

23. The method for manufacturing a vehicle according to claim 16, characterized in that, The component installation parameters are compared with preset component installation parameter benchmarks, and the comparison results are displayed.

24. The method for manufacturing a vehicle according to any one of claims 16-23, characterized in that, The forming parameters of the component side mounting part include the fixture position parameters.

25. The method for manufacturing a vehicle according to any one of claims 16-23, characterized in that, Adjusting the molding parameters of the component side mounting part in the molding parameters of the component according to the location information includes: sending the location information to the terminal equipment in the component molding process and displaying it; manually adjusting the molding parameters of the component side mounting part according to the received location information; or controlling the equipment in the component molding process to automatically adjust the molding parameters of the component side mounting part according to the received location information.

26. The method for manufacturing a vehicle according to any one of claims 16-23, characterized in that, Adjusting the molding parameters of the component side mounting part in the molding parameters of the component according to the position information includes: calculating a correction value of the molding parameters of the component side mounting part according to the position information, and adjusting the molding parameters of the component side mounting part based on the correction value.

27. The method for manufacturing a vehicle according to any one of claims 16-23, characterized in that, Adjusting the molding parameters of the component side mounting part in the molding parameters of the component according to the position information includes: comparing the position information with a preset reference value to obtain a deviation value, and correcting the molding parameters of the component side mounting part based on the deviation value.

28. The method for manufacturing a vehicle according to claim 27, characterized in that, The position information is the position information of a single component in an assembled state relative to the vehicle body, or the position information is the average of the position information of multiple components in an assembled state relative to the vehicle body. And / or, the deviation value is the deviation value between the position information of a single component in the assembly state and the vehicle body and a preset reference value, or the deviation value is the average value of the deviation values ​​between the position information of multiple components in the assembly state and the vehicle body and the preset reference value.

29. The method for manufacturing a vehicle according to claim 27, characterized in that, When the number of the location information or the number of the deviation values ​​reaches a preset number, the forming parameters of the component-side mounting part are corrected based on the deviation values; Alternatively, when a preset time period is reached, the forming parameters of the mounting portion on the component side are corrected based on the deviation value.

30. The method for manufacturing a vehicle according to any one of claims 1-7 and 16-23, characterized in that, The components are made of resin.

31. The method for manufacturing a vehicle according to any one of claims 1-7 and 16-23, characterized in that, The component in question is the tailgate.

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