Tracing method and system for automobile armrest production line

Abstract

The invention discloses a tracing method and system for an automobile armrest production line, and relates to the technical field of automobile part manufacturing. The tracing method for the automobile armrest production line comprises the steps that before assembly is started, a face cover is subjected to code scanning to obtain face cover information, and the face cover information comprises color information and material information; scanning the two-dimensional code based on the key process and updating the state information of the current station; the state information comprises the state information of the WCA component and the state information of the wire harness; and generating an assembly two-dimensional code containing the cover information, the state information of the WCA component and the state information of the wire harness at the tail end of a production line. And through integrated information management and automatic detection means, not only is the production efficiency improved, but also the traceability and the quality control level of the product are greatly enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts manufacturing, and in particular to a tracing method and system for an automobile armrest production line. Background Art

[0002] With the development of the automobile industry, the quality requirements for automobile parts are getting higher and higher. In order to ensure product quality, every link in the production process needs to be strictly controlled and recorded. At present, for complex automobile interior parts such as car armrests, due to their complex structure and long process flow, how to effectively track the information in the production process has become an urgent problem to be solved.

[0003] However, existing traceability methods are often inefficient and it is difficult to ensure the accuracy of information. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a tracing method for an automobile armrest production line, the method comprising: Before assembly begins, scan the mask to obtain mask information, including color information and material information; Scan the QR code based on the key process and update the status information of the current workstation; the status information includes the status information of the WCA component and the status information of the wiring harness; At the end of the production line, an assembly QR code is generated that includes the face cover information, the status information of the WCA component, and the status information of the wiring harness.

[0005] The steps of scanning the QR code based on the key process and updating the status information of the current workstation include: Use a barcode scanner to scan the QR code of the WCA component and the QR code of the wiring harness to record the assembly start time, operator ID, and device status; Confirm the installation status of the screws through torque testing, record the test results and update the station status information; After the screws are fixed, scan the QR code of the WCA component and record the assembly completion time.

[0006] Among them, after using the barcode scanner to scan the QR code of the WCA component, the wiring harness is scanned; one end of the wiring harness is connected to the WCA component, and the other end of the wiring harness is connected to the vehicle power supply, and the control instructions for the WCA component are transmitted based on the wiring harness.

[0007] Among them, the control instruction includes a torque detection instruction; after receiving the torque detection instruction, the WCA component obtains the installation torque value and installation quantity of the screw; a first judgment value is obtained based on the comparison between the installation torque value and the preset torque value, and a second judgment value is obtained based on the comparison between the installation quantity and the preset quantity; and the installation status of the screw is output based on the first judgment value and the second judgment value.

[0008] Wherein, the control instruction also includes a power-on detection instruction; after receiving the power-on detection instruction, the WCA component performs a power-on detection on the WCA component, obtains the power-on current of the WCA component, and compares the power-on current with an upper current limit and a lower current limit; if the power-on current is between the upper current limit and the lower current limit, the system operates normally; if the power-on current is not between the upper current limit and the lower current limit, an alarm is issued.

[0009] The assembly time is obtained based on the assembly start time and the assembly end time, the assembly time is compared with a time threshold and a relative error rate is obtained, and an alarm is issued if the relative error rate exceeds a preset value.

[0010] The present invention further provides a tracing system for an automobile armrest production line, using the tracing method for an automobile armrest production line as described in any one of the above items, comprising: Data acquisition module, used to collect product information at key nodes on the production line; A data processing center is used to analyze and process the received data; Cloud servers to store and manage all data; Terminal display device, used to display the final traceability results.

[0011] Among them, the data acquisition module collects product information by scanning codes.

[0012] Among them, the system also has a fault prediction module; the fault prediction module predicts faults based on historical data and machine learning algorithms.

[0013] Among them, the terminal display device supports multiple data display forms; the terminal display device can be connected to cloud servers on multiple production lines to simultaneously display and compare the traceability results of the multiple production lines.

[0014] Beneficial effects of the invention: Different from the prior art, the invention discloses a traceability method and system for an automobile armrest production line, wherein the traceability method for an automobile armrest production line includes: before assembly, scanning the face cover to obtain the face cover information, the face cover information includes color information and material information; scanning the QR code based on the key process and updating the status information of the current workstation; the status information includes the status information of the WCA component and the status information of the wiring harness; generating an assembly QR code containing the face cover information, the status information of the WCA component and the status information of the wiring harness at the end of the production line. Through integrated information management and automated detection means, not only the production efficiency is improved, but also the traceability and quality control level of the product are enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic flow chart of a tracing method for an automobile armrest production line according to a first embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the process of an embodiment of S12; Figure 3 It is a structural schematic diagram of a traceability system for an automobile armrest production line according to a first embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the traceability system of the automobile armrest production line according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1 As shown, Figure 1 The figure is a flow chart of a traceability method for an automobile armrest production line according to the first embodiment of the present invention.

[0018] Step S11: Before assembly begins, scan the face cover to obtain the face cover information; the face cover information includes color information and material information; that is, each face cover has a code, and the code contains the color information and material information of the face cover; the color information can be red, brown, black, etc.; the material information can be genuine leather, carbon fiber, leather, etc.

[0019] In this embodiment, the code on the face cover is a QR code. In other embodiments, the code on the face cover may be a barcode or any code including the color information and material information of the face cover.

[0020] Step S12: Scan the QR code based on the key process and update the status information of the current workstation; the entire production line includes multiple steps: plastic frame parts assembly, foam assembly suction covering, shaping flange zipper, cover fixation nail gun, WCA cover welding, WCA pressing, side pad and decorative cover pressing and WCA component assembly screw fixation; in this embodiment, the key process is WCA component assembly screw fixation, in other embodiments, the key process may also include any other one or more processes, without any limitation here; the status information includes the status information of the WCA component and the status information of the wiring harness. When the WCA component is assembled and screwed, the WCA component and the wiring harness need to be pre-installed first, and the status information of the WCA component and the wiring harness can be obtained by scanning the code to determine whether the WCA component matches the wiring harness, thereby saving assembly time.

[0021] Step S13: Generate an assembly QR code containing the face cover information, WCA component status information and wiring harness status information at the end of the production line; the generated assembly QR code can be printed out and attached to the finished product; customers or quality inspectors can quickly understand the production process and quality status of the product by scanning the QR code, thereby increasing the transparency and trust of production.

[0022] In summary, the traceability method of the automobile armrest production line of this embodiment includes: before the assembly begins, scanning the face cover to obtain the face cover information, which includes color information and material information; scanning the QR code based on the key process and updating the status information of the current workstation; the status information includes the status information of the WCA component and the status information of the wiring harness; generating an assembly QR code containing the face cover information, the status information of the WCA component and the status information of the wiring harness at the end of the production line. Through integrated information management and automated detection methods, not only the production efficiency is improved, but also the traceability and quality control level of the product are enhanced.

[0023] In one embodiment, if Figure 2 As shown, Figure 2 for Figure 1 The flow chart of an embodiment of S12, scanning a QR code based on a key process and updating the status information of the current workstation includes the following steps: Step S121: Use a barcode scanner to scan the QR code of the WCA component and the QR code of the wiring harness, and record the assembly start time, operator ID, and equipment status. By recording the assembly start time, operator ID, and equipment status, the specific situation of each production link can be traced back. When problems occur, the responsible person and equipment status can be identified, which is helpful for quality control and accountability.

[0024] Step S122: Confirm the installation status of the screws through torque detection, record the detection results and update the workstation status information; update the status information of the current workstation based on the detection results; if the installation status of all screws is normal, mark it as a normal workstation; if there is an abnormal screw installation status, record the abnormal screw and mark it as an abnormal workstation; through torque detection, it can be ensured that each screw is correctly installed according to the specified torque value to avoid product failure or safety hazards caused by improper torque.

[0025] Step S123: After the screws are fixed, scan the QR code of the WCA component and record the assembly end time. The system automatically records the current time as the assembly end time or the operator manually enters the assembly end time; the assembly end time and other relevant information (such as operator ID, equipment status, etc.) are updated to the system to ensure the integrity and accuracy of the workstation status information.

[0026] In one embodiment, after scanning the QR code of the WCA component with a barcode scanner, the wiring harness is scanned; the unique identification of the WCA component and the wiring harness is confirmed by scanning the code to ensure the correctness of the connection and avoid the failure of normal connection due to the mismatch between the WCA component and the wiring harness. One end of the wiring harness is connected to the WCA component, and the other end of the wiring harness is connected to the vehicle power supply. Based on the control instructions of the WCA component transmitted by the wiring harness, the control instructions are transmitted by the wiring harness, and the WCA component can be fully functionally tested to improve the quality level of the WCA component.

[0027] In one embodiment, the control instruction includes a torque detection instruction; after receiving the torque detection instruction, the WCA component obtains the installation torque value and the installation quantity of the screw; a first judgment value is obtained based on the comparison between the installation torque value and the preset torque value, and a second judgment value is obtained based on the comparison between the installation quantity and the preset quantity; and the installation status of the screw is output based on the first judgment value and the second judgment value.

[0028] The WCA component compares the actual measured screw installation torque value with the preset torque value to obtain a first judgment value. If the actual torque value is within the preset range, the first judgment value is qualified; otherwise, it is unqualified. The WCA component compares the actual number of screws installed with the preset number to obtain a second judgment value. If the actual number is consistent with the preset number, the second judgment value is "qualified"; otherwise, it is "unqualified". If both the first judgment value and the second judgment value are "qualified", the output is "screw installation status qualified"; if any of the judgment values ​​is "unqualified", the output is "screw installation status unqualified".

[0029] Torque detection is performed through control instructions, and the installation status of the screw is output based on the detection results. This process not only ensures the quality and consistency of screw installation, but also improves the automation and standardization level of the production process.

[0030] In one embodiment, the control instruction also includes a power-on detection instruction. After receiving the power-on detection instruction, the WCA component performs a power-on detection on the WCA component to obtain the power-on current of the WCA component. The WCA component obtains the actual current value after power-on through a built-in current sensor or an external detection device; the power-on current is compared with the current upper limit and the current lower limit. The current upper limit and the current lower limit can be specifically set without any limitation here. For example, the current upper limit is 55mA and the current lower limit is 45mA; if the power-on current is between the current upper limit and the current lower limit, normal operation is performed. If the power-on current is not between the current upper limit and the current lower limit, an alarm is issued. The alarm can be through a sound alarm, a light alarm, or a terminal display alarm, etc., without any limitation here.

[0031] Power-on detection is performed through control instructions. After receiving the power-on detection instruction, the WCA component performs power-on detection on the WCA component, obtains the power-on current and compares it with the preset current upper and lower limits. This process not only ensures the electrical safety and normal operation of the WCA component, but also improves product quality and production efficiency.

[0032] In one embodiment, the assembly time is calculated based on the assembly start time and the assembly end time, and the assembly time calculation formula is as follows: Assembly time = assembly end time − assembly start time Compare the assembly time with the time threshold and obtain the relative error rate. The relative error rate calculation formula is as follows: Relative error rate = Set an upper limit for the relative error rate, such as 5%. If the relative error rate exceeds this upper limit, the assembly time is considered abnormal. If the relative error rate is too large, an alarm will be issued; monitoring the assembly time helps ensure that each process is completed within the specified time, avoid quality problems caused by timeout, and improve product quality.

[0033] The present invention also provides a traceability system for an automobile armrest production line, such as Figure 3 As shown, Figure 3 It is a structural schematic diagram of the traceability system of the automobile armrest production line of the first embodiment of the present invention; the traceability system includes: a data acquisition module, a data processing center, a cloud server and a terminal display device.

[0034] The data acquisition module is used to collect product information at key nodes on the production line. The product information includes the color information of the face cover, the material information of the face cover, the status information of the WCA component, and the status information of the wiring harness; The data processing center is used to analyze and process the received data. For example, the data processing center receives the assembly start time and the assembly end time and calculates the assembly time, and then compares the assembly time with the preset time to obtain the relative error rate; The cloud server is used to store and manage all data. The data processed by the data processing center is stored on the cloud server to ensure the security and accessibility of the data. It provides data management functions, including data backup, recovery, and permission management. For example, managers with different permissions can access data with different permissions, realizing multi-level protection of data. The terminal display device is used to display the final traceability results, including assembly time, relative error rate and test results. The production data can be displayed intuitively in the form of charts, lists and reports to facilitate management and decision-making.

[0035] Through the collaborative work of data acquisition modules, data processing centers, cloud servers and terminal display devices, the traceability system of the automobile armrest production line realizes comprehensive production traceability and management. This system not only improves the efficiency and quality control level of the production process, but also provides reliable data support and management means. Through real-time monitoring and data analysis, problems in the production process can be discovered and corrected in a timely manner, optimizing production management and improving overall competitiveness.

[0036] In one embodiment, the data collection module collects product information by scanning a code, and the scanning can be achieved by a barcode scanning gun or a mobile phone or other electronic components, which are not limited here. Automated scanning records reduce errors in manual records and ensure the accuracy and reliability of data.

[0037] In one embodiment, the system also has a fault prediction module (not shown), which predicts potential equipment failures through historical data and machine learning algorithms, and takes preventive measures in advance. The threshold of the failure probability is set according to business needs. When the predicted failure probability exceeds the threshold, an early warning is triggered; different early warning levels are set, such as low risk, medium risk and high risk, and corresponding measures are taken according to the risk level. The torque detection, power-on detection and assembly time of the WCA component are comprehensively considered to output the early warning level.

[0038] In one embodiment, if Figure 4 As shown, Figure 4 It is a structural schematic diagram of the traceability system of the automobile armrest production line of the second embodiment of the present invention; the terminal display device supports multiple data display formats, including charts, lists and reports; the terminal display device can be connected to the cloud servers on multiple production lines, and the traceability results of multiple production lines can be displayed simultaneously for comparison.

[0039] The terminal display device is connected to the cloud servers on multiple production lines to obtain the traceability results of each production line; the data of multiple production lines are displayed on the same interface to facilitate real-time monitoring and comparative analysis, and timely discovery and resolution of problems; data sharing of multiple production lines is supported to facilitate cross-departmental and cross-regional collaboration and communication.

[0040] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

[0041] Set an upper limit for the relative error rate, such as 5%. If the relative error rate exceeds this upper limit, the assembly time is considered abnormal. If the relative error rate is too large, an alarm will be issued; monitoring the assembly time helps ensure that each process is completed within the specified time, avoid quality problems caused by timeout, and improve product quality.

[0042] The present invention also provides a traceability system for an automobile armrest production line, such as Figure 3 As shown, Figure 3 It is a structural schematic diagram of the traceability system of the automobile armrest production line of the first embodiment of the present invention; the traceability system includes: a data acquisition module, a data processing center, a cloud server and a terminal display device.

[0043] The data acquisition module is used to collect product information at key nodes on the production line. The product information includes the color information of the face cover, the material information of the face cover, the status information of the WCA component, and the status information of the wiring harness; The data processing center is used to analyze and process the received data. For example, the data processing center receives the assembly start time and the assembly end time and calculates the assembly time, and then compares the assembly time with the preset time to obtain the relative error rate; The cloud server is used to store and manage all data. The data processed by the data processing center is stored on the cloud server to ensure the security and accessibility of the data. It provides data management functions, including data backup, recovery, and permission management. For example, managers with different permissions can access data with different permissions, realizing multi-level protection of data. The terminal display device is used to display the final traceability results, including assembly time, relative error rate and test results. The production data can be displayed intuitively in the form of charts, lists and reports to facilitate management and decision-making.

[0044] Through the collaborative work of data acquisition modules, data processing centers, cloud servers and terminal display devices, the traceability system of the automobile armrest production line realizes comprehensive production traceability and management. This system not only improves the efficiency and quality control level of the production process, but also provides reliable data support and management means. Through real-time monitoring and data analysis, problems in the production process can be discovered and corrected in a timely manner, optimizing production management and improving overall competitiveness.

[0045] In one embodiment, the data collection module collects product information by scanning a code, and the scanning can be achieved by a barcode scanning gun or a mobile phone or other electronic components, which are not limited here. Automated scanning records reduce errors in manual records and ensure the accuracy and reliability of data.

[0046] In one embodiment, the system also has a fault prediction module (not shown), which predicts faults based on historical data and machine learning algorithms; predicts potential equipment failures through historical data and machine learning algorithms, and takes preventive measures in advance. Set a threshold for the probability of failure according to business needs, and trigger an early warning when the predicted probability of failure exceeds the threshold; set different early warning levels, such as low risk, medium risk, and high risk, and take corresponding measures according to the risk level. Comprehensively consider the torque detection, power-on detection, and assembly time output warning levels of the WCA component.

[0047] In one embodiment, if Figure 4 As shown, Figure 4 It is a structural schematic diagram of the traceability system of the automobile armrest production line of the second embodiment of the present invention; the terminal display device supports multiple data display formats, including charts, lists and reports; the terminal display device can be connected to the cloud servers on multiple production lines to simultaneously display and compare the traceability results of multiple production lines.

[0048] The terminal display device is connected to the cloud servers on multiple production lines to obtain the traceability results of each production line; data acquisition module 1 represents the data acquisition module of the first production line, data processing center 1 represents the data processing center of the first production line, and cloud server 1 represents the cloud server of the first production line; data acquisition module N represents the data acquisition module of the Nth production line, data processing center N represents the data processing center of the Nth production line, and cloud server N represents the cloud server of the Nth production line; N represents the number of production lines corresponding to a terminal display device, and N can be any natural number greater than 1, without any limitation.

[0049] Displaying data from multiple production lines on the same interface facilitates real-time monitoring and comparative analysis, and timely discovery and resolution of problems; supporting data sharing across multiple production lines, facilitating cross-departmental and cross-regional collaboration and communication.

[0050] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tracing method for an automobile armrest production line, characterized in that: The method comprises: Before assembly begins, scan the mask to obtain mask information, including color information and material information; Scan the QR code based on the key process and update the status information of the current workstation; the status information includes the status information of the WCA component and the status information of the wiring harness; At the end of the production line, an assembly QR code is generated that includes the face cover information, the status information of the WCA component, and the status information of the wiring harness.

2. The tracing method of the automobile armrest production line according to claim 1 is characterized in that: The steps of scanning the QR code based on the key process and updating the status information of the current workstation include: Use a barcode scanner to scan the QR code of the WCA component and the QR code of the wiring harness to record the assembly start time, operator ID, and device status; Confirm the installation status of the screws through torque testing, record the test results and update the station status information; After the screws are fixed, scan the QR code of the WCA component and record the assembly completion time.

3. The tracing method of the automobile armrest production line according to claim 2 is characterized in that: After scanning the QR code of the WCA component with a barcode scanner, the wiring harness is scanned; one end of the wiring harness is connected to the WCA component, and the other end of the wiring harness is connected to a vehicle power supply, and control instructions for the WCA component are transmitted based on the wiring harness.

4. The tracing method of the automobile armrest production line according to claim 3 is characterized in that: The control instruction includes a torque detection instruction; after receiving the torque detection instruction, the WCA component obtains the installation torque value and the installation quantity of the screw; a first judgment value is obtained based on the comparison between the installation torque value and the preset torque value, a second judgment value is obtained based on the comparison between the installation quantity and the preset quantity, and the installation status of the screw is output based on the first judgment value and the second judgment value.

5. The tracing method of the automobile armrest production line according to claim 3 is characterized in that: The control instruction also includes a power-on detection instruction; after receiving the power-on detection instruction, the WCA component performs a power-on detection on the WCA component, obtains the power-on current of the WCA component, and compares the power-on current with the current upper limit and the current lower limit. If the power-on current is between the current upper limit and the current lower limit, the system operates normally; if the power-on current is not between the current upper limit and the current lower limit, an alarm is issued.

6. The tracing method of the automobile armrest production line according to claim 2, characterized in that: The assembly time is obtained based on the assembly start time and the assembly end time, the assembly time is compared with a time threshold and a relative error rate is obtained, and an alarm is issued if the relative error rate exceeds a preset value.

7. A tracing system for an automobile armrest production line, using the tracing method for an automobile armrest production line according to any one of claims 1 to 6, characterized in that: include: Data acquisition module, used to collect product information at key nodes on the production line; A data processing center is used to analyze and process the received data; Cloud servers to store and manage all data; Terminal display device, used to display the final traceability results.

8. The traceability system for the automobile armrest production line according to claim 7, characterized in that: The data acquisition module collects product information by scanning codes.

9. The traceability system for automobile armrest production line according to claim 7, characterized in that: The system also has a fault prediction module; the fault prediction module predicts faults based on historical data and a machine learning algorithm.

10. The traceability system for the automobile armrest production line according to any one of claims 7 to 9, characterized in that: The terminal display device supports multiple data display formats; the terminal display device can be connected to cloud servers on multiple production lines to simultaneously display and compare the traceability results of the multiple production lines.

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