Torque tracing method for customized production of commercial vehicles

Abstract

The application discloses a torque tracing method for customized production of commercial vehicles, and relates to the technical field of automobile production, and comprises the following steps: a management platform formulates a work order task package according to order information of a target vehicle; a work station platform selects a to-be-executed task from the work order task package; the management platform sends torque fixing process parameters to torque fixing equipment of the corresponding work station platform to execute tightening work; and the management platform stores result data of the torque fixing equipment in association with a vehicle identification code of the target vehicle. Through the method, the tracing granularity is refined from the whole vehicle level to the material unit level, and the active selection of the work station is used to replace the binding relationship between the system preset work station and the task, so that the torque tracing problem caused by the uncertain vehicle type state and the multi-station operation of the same material unit in the customized production scene of the commercial vehicle is solved, and the accurate tracing closed loop of the tightening data to the specific vehicle and the specific material unit is realized.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing technology, and in particular to a torque traceability method for customized production of commercial vehicles. Background Technology

[0002] In automobile manufacturing, torque-controlled fastening refers to the assembly process of tightening bolts, nuts, and other fasteners using torque-controlled tools according to a pre-set precise torque value. Torque-controlled fastening is an important means to ensure the reliability of bolt connections, extend the service life of components, and ensure the safety of the entire vehicle. Therefore, whether in passenger car or commercial vehicle production, to achieve quality management and product safety traceability, it is necessary to correlate process data such as torque and angle values ​​generated during tightening with specific vehicles.

[0003] For passenger vehicle production, due to its high degree of standardization and strong process consistency, fixed-point assembly is commonly used on production lines. In fixed-point assembly, the work content and required material units at each workstation are fixed. The system can pre-establish the correspondence between workstations and tightening parameters. When a vehicle arrives at a workstation, the system automatically retrieves the corresponding torque parameters and issues a torque-setting tool. After tightening, the result data is bound and stored with the vehicle's vehicle identification number (VIN), thus achieving torque traceability. Based on the core concept of fixed-point assembly, many Chinese patents, such as CN104571037A, further enhance the torque-setting and tightening process through additional technologies such as scanning vehicle VIN codes and automatically matching torque configuration information based on vehicle configuration codes. This achieves torque error prevention and traceability in multi-model mixed-line production scenarios for passenger vehicles, greatly improving production efficiency.

[0004] However, the torque tracing method based on fixed-point assembly described above is clearly unsuitable for commercial vehicles (especially buses). Commercial vehicles are mostly customized products with diverse models, configurations, and varying numbers of material units, resulting in low process consistency. More importantly, due to the limitations of the vehicle body structure, the same material unit (such as a battery pack) often needs to be assembled at multiple different workstations, i.e., "non-fixed-point assembly." In this scenario, the system cannot predetermine which workstation a particular material unit will be assembled at, and therefore cannot use the workstation as an anchor point to issue the correct tightening parameters at the correct workstation. Consequently, the torque tracing method used for passenger vehicles cannot be directly applied.

[0005] For the reasons mentioned above, domestic bus manufacturers currently typically use a torque converter tool to manually select the appropriate program on-site to achieve process adaptation. This means that workers manually switch the corresponding torque program on the torque converter tool based on the current work requirements. However, in this method, the data acquisition system built into the torque converter tool can only record process data such as torque values ​​and timestamps. It cannot associate this data with specific vehicle VIN codes or specific material units, resulting in data that cannot be traced back to a specific vehicle. This poses difficulties for vehicle quality management and ensuring the safety of the final product. Summary of the Invention

[0006] This invention provides a torque traceability method for customized production of commercial vehicles. Its main purpose is to solve the problem that existing torque traceability methods rely on fixed-point assembly and cannot be applied to non-fixed-point assembly scenarios of commercial vehicles, thus making torque traceability of commercial vehicles difficult.

[0007] The present invention adopts the following technical solution: A torque traceability method for customized production of commercial vehicles includes the following steps: Step S1: The management platform generates a work order task package based on the production order information of the target vehicle. The work order task package contains at least one work order task, and each work order task contains a vehicle identification code, a material unit number, and a torque process parameter. Step S2: The workstation platform obtains the vehicle identification code of the target vehicle, retrieves the work order task package corresponding to the target vehicle, and selects the work order task that matches the material unit number of the current workstation and has not been executed from the work order task package as the task to be executed. Step S3: The management platform sends the torque process parameters that match the task to be executed to the torque equipment of the corresponding workstation platform so that the torque equipment can perform the tightening operation according to the torque process parameters. Step S4: The management platform obtains the result data generated after the torque-controlled equipment performs the tightening operation, and associates and stores the result data with the vehicle identification code of the target vehicle.

[0008] Furthermore, in step S1, the production order information includes the vehicle identification number of the target vehicle, the material unit number, and the total number of material units; the number of work order tasks is equal to the total number of material units.

[0009] Furthermore, in step S2, when there is at least one material unit with the same material unit number in the same workstation, the workstation platform determines the number of work order tasks to be executed based on the number of material units.

[0010] Furthermore, when there are at least two material units with the same material unit number, the material units can be located at different workstations or concentrated at the same workstation.

[0011] Furthermore, in step S1, the method for determining the torque process parameters is as follows: the management platform queries historical torque process data in the torque management module based on the material unit number. If a consistent historical torque process parameter is found, it is directly borrowed; if a consistent historical torque process parameter is not found, the newly maintained torque process parameter is received.

[0012] Furthermore, the torque-fixing process parameters include at least one of the following: number of bolts, torque value, angle value, upper and lower limits, and working position.

[0013] Furthermore, in step S2, the workstation platform first obtains the identity verification information of the workstation personnel, and then obtains the vehicle identification code of the target vehicle; in step S4, the management platform associates and stores the identity verification information with the result data.

[0014] Furthermore, the management platform includes an ERP system and a MES system that communicate with each other. The ERP system is used to manage the production order information of the target vehicle; the MES system is used to manage the torque process parameters of the target vehicle and generate the work order task package.

[0015] Furthermore, in step S2, the workstation platform obtains the vehicle identification code of the target vehicle by scanning with a barcode scanner, and displays the work order task package through the industrial control computer for the workstation personnel to select; in step S4, the management platform obtains the result data generated after the torque-controlled device performs the tightening operation through the industrial control computer.

[0016] Furthermore, the workstation platform is a mobile device that moves between different workstations to perform tightening operations.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention first generates a work order task package containing vehicle identification code, material unit number, and torque process parameters based on production order information through a management platform. This refines the traceability granularity from the whole vehicle level to the material unit level, adapting to customized production scenarios where the configuration of commercial vehicle models is uncertain. Then, the workstation platform selects unexecuted tasks from the work order task package that match the material unit number of the current workstation. This proactive workstation selection replaces the system's preset workstation-task binding relationship, solving the traceability problem of multi-workstation operations for the same material unit and achieving a precise traceability closed loop that tightens data to specific vehicles and specific material units. Attached Figure Description

[0018] Figure 1 This is a system architecture diagram of the present invention.

[0019] Figure 2 This is a diagram of the algorithm framework of the present invention.

[0020] Figure 3This is a schematic diagram of the control flow of the present invention. Detailed Implementation

[0021] Specific embodiments of the present invention will now be described with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of the invention; however, those skilled in the art will be able to implement the invention without these details.

[0022] like Figure 1 As shown, this invention provides a torque traceability system for customized production of commercial vehicles, comprising two main parts: a management platform and a workstation platform. The management platform includes an ERP system 1 (Enterprise Resource Planning system) and a MES system 2 (Manufacturing Execution System) that communicate with each other. The workstation platform includes an industrial control computer 6, a barcode scanner 7, a torque converter 8, and a Wi-Fi receiver 5. The management platform and the workstation platform communicate via Ethernet 10, a public network switch 3, a wireless AP 4 (wireless access point), and the Wi-Fi receiver 5.

[0023] The functions of each component are described in detail below: 1. ERP System 1: Used to manage production order information. Production order information includes the vehicle identification number of the target vehicle, bill of materials (BOM), material unit number, order process, and the total number of material units corresponding to each material unit number.

[0024] 2. MES System 2: Interacts with ERP System 1 to manage the torque control process parameters of target vehicles and generate work order task packages. MES System 2 has a built-in torque management module with a process database. Process administrators can use this module to query historical torque control process data based on the material unit number. If matching process data is found, it can be directly used; otherwise, new torque control process parameters must be maintained. Torque control process parameters include, but are not limited to, bolt quantity, torque value, angle value, upper and lower limits, and work station. After the process data is maintained and approved, MES System 2 interacts with ERP System 1 to obtain the total number of material units corresponding to the material unit number in the production order and generates the corresponding number of work order tasks, forming a work order task package to be executed. Each work order task includes a vehicle identification code, material unit number, and corresponding torque control process parameters, achieving refined management of "one material unit, one work order." Simultaneously, MES System 2 is also responsible for storing torque control process parameters and tightening result data, providing basic data for locking quality analysis and improvement.

[0025] 3. Industrial Control Computer 6: Communicating with both MES System 2 and barcode scanner 7, it is the core control unit of the workstation platform. Industrial Control Computer 6 is equipped with a display screen to show unexecuted work order tasks in the work order task package and to receive confirmation commands from workstation personnel regarding work order tasks. Industrial Control Computer 6 is also responsible for configuring the torque control process parameters issued by MES System 2 to the torque control device 8, and uploading the result data to MES System 2 after the tightening operation is completed.

[0026] 4. Barcode Scanning Device 7: Communicates with the industrial control computer 6 and is used to scan the body barcode of the target vehicle to obtain the vehicle identification code. In practical applications, a barcode scanner can be preferred.

[0027] 5. Torque-controlled device 8: Communicates with the industrial computer 6 to receive the torque-controlled process parameters configured by the industrial computer 6, and automatically performs tightening operations according to the parameters, generating result data including torque value, angle value, number of bolts, and pass / fail status. In practical applications, a torque-controlled tightening gun can be selected as the torque-controlled device 8.

[0028] 6. Ethernet 10: This is the public network for the management platform. ERP system 1 and MES system 2 communicate via Ethernet 10 and are connected to the public network switch 3.

[0029] 7. Public Network Switch 3: Connects Ethernet 10 and Wireless AP 4, used for data exchange between the management platform network and the workstation platform network. The system adopts a dual-network mode, using public network switch 3 to isolate Ethernet 10 (public network) from the device subnet 11, ensuring the security of data transmission. 8. Equipment Subnet 11: This is the local area network on the workstation platform side, consisting of a WIFI receiver 5, an industrial control computer 6, a barcode scanner 7, and a torque converter 8. Equipment Subnet 11 connects to Ethernet 10 via wireless AP 4, enabling data communication between the workstation platform and the management platform. Through a dual-network isolation architecture, Equipment Subnet 11 is logically isolated from the public network, effectively preventing external network risks and ensuring the secure transmission of production data.

[0030] 9. WIFI Receiver 5: Integrated into the workstation platform, used to receive the wireless signal of the wireless AP 4, and realize the wireless communication connection between the workstation platform and the management platform.

[0031] In addition, to enable mobile, non-fixed-point operations and adapt to the non-fixed workstation characteristics of commercial vehicle production sites, the industrial control computer 6, torque-fixing device 8, barcode scanning device 7, and WIFI receiver 5 can be integrated using a trolley to form a mobile workstation platform that can move between different workstations to perform tightening operations.

[0032] like Figure 1 and Figure 2As shown, based on the above system architecture, the present invention provides a torque traceability method for customized production of commercial vehicles, which specifically includes the following steps: Step S1: The management platform generates a work order task package based on the production order information of the target vehicle. The work order task package contains at least one work order task, and each work order task contains the vehicle identification code, material unit number, and torque process parameters.

[0033] Specifically, the production order information includes the vehicle identification number (VIN) of the target vehicle, the material unit number, and the total number of material units. The process administrator in the management platform first queries historical torque-controlled process data in the torque management module of MES system 2 based on the material unit number. If a historical torque-controlled process parameter matching the material unit number is found, it is directly used as the torque-controlled process parameter corresponding to that material unit number; if no matching historical torque-controlled process parameter is found, the newly maintained torque-controlled process parameter is received. The torque-controlled process parameter includes at least one of the following: bolt quantity, torque value, angle value, upper and lower limits, and work station.

[0034] After the torque-controlled process parameters are determined and approved, MES system 2 interacts with ERP system 1 to obtain the total number of material units corresponding to the material unit number in the production order. Based on the total number of material units, MES system 2 generates a corresponding number of work orders, the number of which equals the total number of material units. Each work order includes a vehicle identification code, a material unit number, and the corresponding torque-controlled process parameters. These work orders are combined to form a work order package corresponding to the target vehicle identification code, achieving "vehicle model decoupling" of the production order. This allows the system to no longer attempt to manage the complete configuration of an entire vehicle, but instead breaks it down into independent tasks linked to specific material units, thus solving the traceability difficulties caused by the uncertainty of vehicle model status under customized conditions.

[0035] Step S2: The workstation platform obtains the vehicle identification code of the target vehicle, retrieves the work order task package corresponding to the target vehicle, and selects the work order task that matches the material unit number of the current workstation and has not been executed as the task to be executed.

[0036] Specifically, before executing the task, the worker first obtains identity verification information (such as card login) through the workstation platform, and the system records the worker's information for subsequent tracking. Then, the worker scans the target vehicle's body barcode using the workstation platform's barcode scanner 7, and the system obtains the vehicle identification number (VIN). In response to obtaining the VIN, the industrial control computer 6 retrieves the corresponding work order task package from the MES system 2 and displays all unexecuted work order tasks in that task package on the industrial control computer 6's display screen.

[0037] It should be noted that a target vehicle typically contains multiple material units (such as battery packs, motors, steering pumps, etc.), each corresponding to a different material unit number and torque-controlled process parameters. The work order task package generated in step S1 gathers all the work order tasks corresponding to the material units requiring torque-controlled installation for the target vehicle, and each work order task contains a corresponding material unit number. When the workstation platform retrieves the work order task package, the industrial control computer 6 will display all the unexecuted work order tasks corresponding to the material units of the vehicle on its display screen. Workstation personnel, based on the material unit numbers and quantities that actually need to be installed at the current workstation, select and confirm the unexecuted tasks whose material unit numbers match from the displayed work order tasks. In actual working conditions, the same workstation can install only one type of material unit, or multiple material units can be installed simultaneously (e.g., due to installation difficulty, process arrangement, or other working conditions). Workstation personnel flexibly select and confirm the corresponding work order tasks according to the specific situation, and the workstation platform determines the work order tasks to be executed and their quantities accordingly. This mechanism of assigning work orders by allowing workers to actively choose their workstations does not pre-determine the binding relationship between workstations and material unit numbers. Workstation personnel actively claim tasks based on the actual needs of their current workstation. This not only adapts to the flexible needs of multi-workstation operations for the same material unit, but also accommodates complex assembly scenarios where the same workstation handles multiple material units.

[0038] When there are at least two material units corresponding to the same material unit number, these material units can be located at different workstations (e.g., due to vehicle body structure limitations, some battery packs must be installed before other components are installed), or they can be concentrated at the same workstation. For this scenario, the workstation platform supports selective assignment of some tasks within the work order package. That is, workstation personnel only select and confirm the portion of the work order tasks that need to be executed at the current workstation and match the current material unit number. The remaining unexecuted tasks (including remaining tasks with the same number and other material unit tasks with different numbers) are left for subsequent selection and confirmation by other workstations. The industrial control computer 6 records the execution status (executed / not executed) of each work order task in real time, ensuring that a task is not executed repeatedly and that all tasks are ultimately completed in a closed loop.

[0039] Step S3: The management platform sends the torque process parameters matched to the task to be executed to the torque device 8 of the corresponding workstation platform, so that the torque device 8 can perform the tightening operation according to the torque process parameters.

[0040] Specifically, after the worker selects and confirms the work order task, the MES system 2 sends the torque control process parameters included in the selected and confirmed work order task to the industrial control computer 6. The industrial control computer 6 then configures the torque control device 8 with the process parameters, including torque value, angle value, and upper and lower limits. After configuration, the worker holds the torque control device 8 and aligns it with the bolt. The torque control device 8 then automatically performs the tightening operation according to the preset torque control process parameters, automatically stopping when the preset torque or angle value is reached, ensuring that the tightening of each bolt meets the process requirements.

[0041] Step S4: The management platform obtains the result data generated after the torque device 8 performs the tightening operation, and associates and stores the result data with the vehicle identification code of the target vehicle.

[0042] Specifically, after each work order is completed, the torque control device 8 generates result data including torque value, angle value, number of bolts, and qualification status. The industrial control computer 6 uploads this result data to the MES system 2, which then associates and stores the result data with the target vehicle's vehicle identification number and the identity verification information of the workstation personnel. After all work orders are completed, the industrial control computer 6 reports the work to the MES system 2, completing the closed loop of torque traceability management for that vehicle. In this way, the tightening data of each bolt can be traced back to the specific vehicle, the specific material unit, and the specific operator, providing complete and reliable basic data for subsequent bolt tightening quality analysis and product safety assurance.

[0043] like Figures 1 to 3 As shown, the following description uses the constant torque lock of a bus battery pack as an example to further illustrate the implementation of the present invention in conjunction with a specific order vehicle.

[0044] Example 1 (All assembly completed at the same workstation) This example uses the battery torque lock assembly of the XMQ6115CYBEVL vehicle as an example. This order includes four battery boxes. Since the battery is top-mounted, it does not interfere with the assembly sequence of other chassis components, and therefore all assembly can be completed at the same workstation. The specific process is as follows: Step S1: The management platform generates a work order task package based on the vehicle's production order information. The process administrator queries historical process data in the torque management module of MES system 2 based on the battery material unit number. If the data matches historical data, it is directly used; otherwise, new torque-locking process data for the battery material unit is maintained (including bolt quantity, torque value, angle value, upper and lower limits, work station, etc.). After the process data is approved, MES system 2 interacts with ERP system 1, generating four work order tasks based on the order BOM configuration quantity (4 boxes) for the battery material unit in ERP system 1, forming a work order task package to be executed. Each work order task includes the vehicle identification number, battery material unit number, and corresponding torque-locking process parameters.

[0045] Step S2: The workstation platform obtains the vehicle identification code and selects the task to be executed. After logging in by swiping their card, employees use handheld barcode scanners 7 to scan the vehicle barcode, and the system obtains the vehicle identification code. The MES system 2 sends the work order task package to the industrial control computer 6 display screen, showing 4 unexecuted work order tasks. Since all 4 battery boxes are installed at the same workstation, the workstation personnel select and confirm all 4 work order tasks as tasks to be executed.

[0046] In step S3, the MES system 2 sends the torque-fixing process parameters corresponding to the four pending work orders to the industrial control computer 6. The industrial control computer 6 then configures the torque-fixing equipment 8 with the process parameters. After configuration, the worker holds the torque-fixing equipment 8 and performs torque-fixing tightening operations on the four battery boxes in sequence. The torque-fixing equipment 8 automatically completes the tightening according to the preset parameters.

[0047] Step S4: After each work order task is completed (i.e., the locking and installation of one battery pack is finished), the industrial control computer 6 sends the result data to the MES system 2, including torque value, angle value, number of bolts, and qualification status. The MES system 2 associates and stores this result data with the vehicle identification number and operator information. After all four work orders are completed, the industrial control computer 6 reports the work to the MES system 2, completing torque traceability management.

[0048] Example 2 (Assembly completed in stages at different workstations) This example uses the battery torque lock installation of the XMQ6850AGBEVL31 vehicle as an example. This vehicle is equipped with a total of 6 battery packs. Due to structural limitations, 3 of the battery packs must be installed before components such as the motor, cooling fan, steering pump, and air tank are installed. Therefore, the work order needs to be executed at two workstations. The specific process is as follows: Step S1: Same as in Example 1, the management platform generates 6 work order tasks (corresponding to 6 boxes of batteries) based on the production order information, forming a work order task package to be executed.

[0049] Step S2: After the vehicle arrives at the first installation station, the employee swipes their card to log in and obtains the vehicle identification number by scanning the code on the barcode scanner 7. The industrial control computer 6 displays 6 unexecuted work orders. The station staff selects and confirms the corresponding 3 work orders as pending tasks based on the actual 3 battery boxes to be installed at the current station. The remaining 3 work orders remain in an unexecuted state, awaiting processing at subsequent work stations.

[0050] In step S3, the MES system 2 sends the torque-fixing process parameters corresponding to the three pending work orders to the industrial control computer 6, which then configures the torque-fixing device 8. The worker then uses the torque-fixing device 8 to perform the torque-fixing and fastening operation on the three battery boxes.

[0051] Step S4: After each work order task is completed, the industrial control computer 6 uploads the result data to the MES system 2 and stores it. After the three tasks at the first workstation are completed, the vehicle is transferred to the second installation workstation. The employee scans the code again using the barcode scanner 7 to obtain the vehicle identification code, and the industrial control computer 6 displays the remaining three unexecuted work order tasks. The workstation personnel select and confirm these three tasks, and the MES system 2 sends the corresponding process parameters to the industrial control computer 6. The industrial control computer 6 configures the torque control device 8, and the workstation personnel perform the tightening operation and upload the result data. After all six work order tasks are completed, the industrial control computer 6 reports the work to the MES system 2, completing the torque traceability management closed loop for the vehicle.

[0052] As can be seen from Examples 1 and 2, this invention solves the problem of generating torque traceability tasks due to the uncertainty of vehicle model status in the customized production scenario of commercial vehicles through the mechanism of "vehicle model decoupling and work order task generation"; and solves the problem of flexible task allocation and leakage prevention in the scenario of multiple assembly of the same material unit at different work stations through the mechanism of "active selection and allocation of workstations". The combination of the two mechanisms fully covers the two core pain points of "customization" and "non-fixed-point assembly" of commercial vehicles, and realizes full-process torque traceability management of customized production of commercial vehicles.

[0053] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept should be included within the protection scope of the present invention.

Claims

1. A torque traceability method for customized production of commercial vehicles, characterized in that: Includes the following steps: Step S1: The management platform generates a work order task package based on the production order information of the target vehicle. The work order task package contains at least one work order task, and each work order task contains a vehicle identification code, a material unit number, and a torque process parameter. Step S2: The workstation platform obtains the vehicle identification code of the target vehicle, retrieves the work order task package corresponding to the target vehicle, and selects the work order task that matches the material unit number of the current workstation and has not been executed from the work order task package as the task to be executed. Step S3: The management platform sends the torque process parameters that match the task to be executed to the torque equipment of the corresponding workstation platform so that the torque equipment can perform the tightening operation according to the torque process parameters. Step S4: The management platform obtains the result data generated after the torque-controlled equipment performs the tightening operation, and associates and stores the result data with the vehicle identification code of the target vehicle.

2. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: In step S1, the production order information includes the vehicle identification number of the target vehicle, the material unit number, and the total number of material units; the number of work order tasks is equal to the total number of material units.

3. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: In step S2, when there is at least one material unit with the same material unit number in the same workstation, the workstation platform determines the number of work order tasks to be executed based on the number of material units.

4. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: When there are at least two material units with the same material unit number, the material units can be located at different workstations or concentrated at the same workstation.

5. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: In step S1, the method for determining the torque process parameters is as follows: the management platform queries historical torque process data in the torque management module based on the material unit number. If a consistent historical torque process parameter is found, it is directly borrowed; if a consistent historical torque process parameter is not found, the newly maintained torque process parameter is received.

6. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: The torque control process parameters include at least one of the following: number of bolts, torque value, angle value, upper and lower limits, and working position.

7. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: In step S2, the workstation platform first obtains the identity verification information of the workstation personnel, and then obtains the vehicle identification code of the target vehicle; in step S4, the management platform associates and stores the identity verification information with the result data.

8. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: The management platform includes an ERP system and a MES system that communicate with each other. The ERP system is used to manage the production order information of the target vehicle; the MES system is used to manage the torque process parameters of the target vehicle and generate the work order task package.

9. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: In step S2, the workstation platform obtains the vehicle identification code of the target vehicle by scanning with a barcode scanner, and displays the work order task package through the industrial control computer for the workstation personnel to select; in step S4, the management platform obtains the result data generated after the torque-controlled equipment performs the tightening operation through the industrial control computer.

10. The torque traceability method for customized production of commercial vehicles as described in claim 1, characterized in that: The workstation platform is a mobile device that moves between different workstations to perform tightening operations.

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