Automatic matching method for spot welding parameters of balance sheet of complex transmission shaft

Abstract

The invention relates to the technical field of spot welding of balance sheets, and provides an automatic matching method for spot welding parameters of a complex transmission shaft balance sheet. The method comprises the following steps: S1, starting, a user needs to log in through identity authentication to ensure the security of a system and the integrity of data; s2, scanning a two-dimensional code or a bar code on the workpiece by using a code scanning device, and judging whether the code of the workpiece is scanned or not by a system; s3, the upper computer is accessed after code scanning succeeds, and whether the workpiece exists or not is judged; s4, the upper computer displays a current workpiece picture and spot welding parameters and sends data to the PLC; and S5, the PLC receives the data of the upper computer, stores the data in a data register D0, and performs bit decomposition operation on the D0. By automatically matching the welding parameters, each welding link is ensured to be carried out based on accurate data, so that the welding precision and consistency are remarkably improved, the influence of human factors on the welding quality is reduced in the process, the welding effect is more reliable, and the rework rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of balancing piece spot welding, in particular to an automatic matching method for spot welding parameters of a complex transmission shaft balancing piece. Background Art

[0002] In modern manufacturing, spot welding, as an important connection process, is widely used in the manufacture of structural parts in the fields of automobiles, aviation, etc. Especially in the production process of complex transmission shaft balance plates, the importance of spot welding technology becomes more and more prominent. These balance plates play a key role in the power transmission, stability and safety of vehicles, so the requirements for welding quality are extremely high.

[0003] Traditional welding parameter settings usually require manual identification of the workpiece and then manually selecting the corresponding welding parameters, which may lead to the risk of incorrect identification or selection, thus affecting welding quality and production efficiency. Secondly, manual operation is prone to misoperation, increasing the scrap rate of products and causing waste of resources. In addition, the traditional welding process lacks real-time monitoring and feedback mechanisms, making it impossible to detect and correct problems in the welding process in a timely manner, increasing the difficulty of later quality control.

[0004] In order to solve these problems, the industry is in urgent need of an efficient and automated spot welding parameter matching method to ensure the stability and consistency of the welding process, while improving production efficiency and product quality. Therefore, the invention is proposed to fill the gap in the prior art and provide an automatic spot welding parameter matching method suitable for complex transmission shaft balance sheets to ensure the efficiency, accuracy and intelligence of the welding process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method for automatically matching spot welding parameters of a complex transmission shaft balance sheet, which solves the problem of manual identification of workpieces and selection of welding parameters, which may lead to errors in identification or selection.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for automatically matching spot welding parameters of a complex transmission shaft balance sheet, comprising the following steps;

[0007] S1. At the beginning, users need to log in through identity authentication to ensure the security of the system and the integrity of the data;

[0008] S2. Use a code scanning device to scan the QR code or barcode on the workpiece, and the system will determine whether the workpiece has been scanned;

[0009] S3. Scan the code to successfully access the host computer and determine whether the workpiece exists;

[0010] S4, the host computer displays the current workpiece image and spot welding parameters, and sends data to the PLC;

[0011] S5, PLC receives the data from the host computer and stores it in the data register D0, and performs bit decomposition operation on D0;

[0012] S6, temporarily storing the decomposition operation results in the intermediate relays M0-M7 respectively;

[0013] S7, transfer the result to PLC output point Y0-Y7, and judge whether it is successfully transferred;

[0014] S8, correspondingly connect and input the results of PLC output points Y0-Y7 to the input interface of the controller to lock the welding parameters;

[0015] S9, the PLC determines whether there is a welding start signal input;

[0016] S10, the welding controller executes the welding command and sends the welding result to the host computer;

[0017] S11. The host computer determines whether the welding result is correct.

[0018] Preferably, if the workpiece has been scanned in step S2, the next step is executed; if the workpiece has not been scanned, the next step is waited for to be scanned.

[0019] Preferably, if the workpiece exists in step S3, the next step is executed; if not, the workpiece and the matching spot welding parameter information are entered and S2 is executed again.

[0020] Preferably, in step S4, welding parameters of different workpieces are displayed, providing an interface for user selection and confirmation.

[0021] Preferably, if the transfer is successful in step S7, the next step is executed, and if the transfer fails, an alarm is issued and it is re-determined whether the transfer is successful.

[0022] Preferably, if a welding start signal is input in step S9, the next step is executed, and if no welding start signal is input, the signal input is waited for.

[0023] Preferably, if the welding result in step S11 is correct, step 2 is executed again to weld the next workpiece, and if the welding result is wrong, an alarm is issued.

[0024] Preferably, the host computer can record the parameters and results of each welding for subsequent tracing and analysis.

[0025] Preferably, the welding controller is capable of monitoring the welding process and adjusting welding parameters in real time.

[0026] Working principle: First, the user logs in to the system through identity authentication to ensure data security and operation authority. The QR code or barcode on the workpiece is scanned by a code scanning device, and the system automatically determines whether the workpiece has been identified. This step ensures that each workpiece can be accurately tracked and managed. After the code is successfully scanned, the host computer is accessed to determine whether the workpiece exists in the database. If the workpiece exists, the picture and welding parameters of the current workpiece are displayed, and the data is sent to the PLC. If the workpiece does not exist, it will prompt to enter the workpiece and its corresponding spot welding parameter information. After the PLC receives the data from the host computer, it stores the data in the data register D0, and converts D0 into bit information for subsequent processing by performing bit decomposition operations. The decomposed data results will be temporarily stored in the intermediate relays M0-M7 respectively. This link ensures that the data is properly stored before transmission and is prepared for subsequent output. The intermediate stored data is transmitted to the welding controller through the PLC output points Y0-Y7, and it is determined whether the data is successfully transmitted. If the transfer is successful, the next step will be executed; if the transfer fails, an alarm will be issued to prompt the operator to check the data connection. The PLC inputs the results of output points Y0-Y7 to the input interface of the controller to lock the welding parameters. This measure ensures that the parameters used in the welding process will not be accidentally modified, thereby improving the stability and reliability of the welding process. The PLC checks whether the welding start signal is received. After confirming that a valid signal has been received, the welding controller will execute the welding command and start the welding process. This step effectively prevents misoperation and ensures that the timing and conditions for welding are ready. After welding is completed, the welding controller sends the results to the host computer for evaluation, compares the welding results with the preset quality standards, and determines whether the welding is successful.

[0027] The present invention provides a method for automatically matching spot welding parameters of complex transmission shaft balance pieces.

[0028] Beneficial effects:

[0029] 1. The present invention ensures that each welding link is based on accurate data by automatically matching welding parameters, thereby significantly improving the accuracy and consistency of welding. This process reduces the impact of human factors on welding quality, makes the welding effect more reliable, and reduces the rework rate.

[0030] 2. The present invention uses the code scanning recognition function and the dynamic update capability of the database to enable rapid parameter entry and matching when encountering a new workpiece, thereby ensuring the adaptability of the production line in a multi-variety small-batch production environment and meeting changes in market demand.

[0031] 3. The present invention records the parameters and results of each welding, which facilitates subsequent tracing and analysis. This data management mechanism not only helps to find problems and make improvements, but also provides a reliable basis for subsequent quality control and auditing, ensuring the transparency and traceability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of the method of the present invention;

[0033] Figure 2 The present invention is a schematic diagram of the method. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example:

[0036] Please refer to the attached Figure 1 , an embodiment of the present invention provides a method for automatically matching spot welding parameters of a complex transmission shaft balancing sheet, comprising the following steps;

[0037] S1. At the beginning, users need to log in through identity authentication to ensure the security of the system and the integrity of the data;

[0038] Specifically, users need to log in through identity authentication. This step ensures the security of the system and the integrity of the data, preventing unauthorized personnel from operating. The system records the user's operation history to provide a basis for subsequent audits;

[0039] S2. Use a code scanning device to scan the QR code or barcode on the workpiece, and the system will determine whether the workpiece has been scanned;

[0040] S3. Scan the code to successfully access the host computer and determine whether the workpiece exists;

[0041] S4, the host computer displays the current workpiece image and spot welding parameters, and sends data to the PLC;

[0042] S5, PLC receives the data from the host computer and stores it in the data register D0, and performs bit decomposition operation on D0;

[0043] S6, temporarily storing the decomposition operation results in the intermediate relays M0-M7 respectively;

[0044] S7, transfer the result to PLC output point Y0-Y7, and judge whether it is successfully transferred;

[0045] S8, correspondingly connect and input the results of PLC output points Y0-Y7 to the input interface of the controller to lock the welding parameters;

[0046] S9, the PLC determines whether there is a welding start signal input;

[0047] S10, the welding controller executes the welding command and sends the welding result to the host computer;

[0048] S11, the host computer determines whether the welding result is correct;

[0049] Specifically, this solution aims to improve the welding quality and production efficiency of complex transmission shaft balance plates through automated welding parameter matching and monitoring processes. This method integrates advanced code scanning recognition, PLC control and real-time monitoring technology to ensure that each welding link can be carried out based on accurate data and reliable parameters, thereby reducing the risks brought by human operation.

[0050] In this embodiment, after the system is started, the user needs to log in through identity authentication. Identity authentication can be performed in a variety of ways, such as entering a user name and password, or using biometrics to improve security. Through these measures, the user's identity can be confirmed to ensure that only authorized personnel can enter the subsequent welding parameter matching process.

[0051] The system will record the operation history after the user successfully logs in, including the login time, operation content and results, which not only helps with auditing and tracking, but also allows for retrospective analysis when problems arise. This mechanism further enhances the security and reliability of the system.

[0052] In this embodiment, the user uses a barcode scanning device to scan the QR code or barcode on the workpiece. After receiving the scanning information, the system will first determine whether the workpiece has been successfully scanned. If the workpiece has been scanned, it will automatically enter the next step; if the workpiece has not been scanned, it will remain in this step until the user completes the scanning. This design ensures that the system is always in the correct operation process and prevents subsequent steps from causing errors due to lack of valid workpiece information.

[0053] In this embodiment, after the code is scanned successfully, the host computer will be accessed to determine whether the workpiece exists in the pre-established database. If the workpiece information is found in the database, the next step will be entered; if the workpiece information is not recognized, the system will prompt the user to enter the new workpiece and its corresponding spot welding parameter information, and re-execute S2. This design ensures that the system can flexibly respond to the welding needs of new workpieces and ensure the accuracy of welding operations.

[0054] In this embodiment, the host computer will be accessed to obtain the image of the current workpiece and its corresponding spot welding parameters. This information will be displayed in the user interface, including parameters such as welding temperature, pressure, and welding time. The user can view and confirm these parameters in this step to ensure that they are suitable for the characteristics of the workpiece. If the user is satisfied with the displayed parameters, he can choose to confirm and proceed to the next step; if adjustments are required, the parameters can be modified to ensure the optimization of welding conditions;

[0055] In this embodiment, after the user confirms the welding parameters, the system sends these parameters to the PLC and stores them in the data register D0. The data register D0 is used to temporarily store all parameters related to the workpiece welding, including welding current, time, pressure and other information. To achieve this process, the system first formats the parameters obtained from the host computer to ensure that they can be correctly recognized and processed by the PLC.

[0056] In this embodiment, the system performs a bit decomposition operation on the data in register D0, splitting it into multiple independent bits for subsequent output operations. Specifically, the bit decomposition operation is to extract each bit in D0 to determine the state of each welding parameter 0 or 1. This process can be described by the following formula:

[0057]

[0058] In this formula, b i Indicates the state of the i-th bit, and D0 is the stored welding parameter value. The results of the operation will be temporarily stored in the intermediate relays MO to M7 for subsequent use.

[0059] In this embodiment, the bit information in the intermediate relays M0-M7 is transmitted to the controller through the PLC output points Y0-Y7. During the transmission process, it will first be determined whether the data transmission is successful. If all bit information can be transmitted smoothly, it will continue to the next step; if the transmission fails, the system will issue an alarm and re-execute the transmission process to ensure that the parameters are accurate.

[0060] In this embodiment, after successful data transfer of S7, the results of PLC output points Y0-Y7 are connected to the input interface of the welding controller. These connection operations will enable the controller to receive and process welding parameters in real time. During this process, the system will confirm the received parameters and lock these welding parameters to prevent the parameters from being accidentally modified during the welding process.

[0061] In this embodiment, after receiving a valid welding start signal, the controller will execute the welding command according to the locked welding parameters. During this process, the controller will monitor the welding status in real time, including welding current, time and pressure, to ensure the accuracy and consistency of the welding process. Once the welding is completed, the welding controller sends the welding results back to the host computer for subsequent data recording and analysis.

[0062] In this embodiment, after receiving the welding results, it will be analyzed to confirm whether the welding meets the preset quality standards. Specific evaluation criteria may include parameters such as welding strength, weld appearance and welding time. These criteria can be determined by setting thresholds.

[0063] In this embodiment, the welding start signal from the user or the automatic control system is continuously monitored. If the welding start signal is detected, the next step will be entered; if no signal is received, the waiting will continue and the start signal will be detected. This design ensures that the welding operation is only started under appropriate conditions, thereby reducing the risk of misoperation.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for automatically matching spot welding parameters of complex transmission shaft balance sheet, characterized in that: The steps include: S1. At the beginning, users need to log in through identity authentication to ensure the security of the system and the integrity of the data; S2. Use a code scanning device to scan the QR code or barcode on the workpiece, and the system will determine whether the workpiece has been scanned; S3. Scan the code to successfully access the host computer and determine whether the workpiece exists; S4, the host computer displays the current workpiece image and spot welding parameters, and sends data to the PLC; S5, PLC receives the data from the host computer and stores it in the data register D0, and performs bit decomposition operation on D0; S6, temporarily storing the decomposition operation results in the intermediate relays M0-M7 respectively; S7, transfer the result to PLC output point Y0-Y7, and judge whether it is successfully transferred; S8, correspondingly connect and input the results of PLC output points Y0-Y7 to the input interface of the controller to lock the welding parameters; S9, the PLC determines whether there is a welding start signal input; S10, the welding controller executes the welding command and sends the welding result to the host computer; S11. The host computer determines whether the welding result is correct.

2. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: If the workpiece has been scanned in step S2, the next step is executed; if the workpiece has not been scanned, the next step is waited for to be scanned.

3. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: If the workpiece exists in step S3, the next step is executed; if not, the workpiece and the matching spot welding parameter information are entered and S2 is executed again.

4. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: In the step S4, welding parameters of different workpieces are displayed, and an interface for user selection and confirmation is provided.

5. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: If the transfer is successful in step S7, the next step is executed; if the transfer fails, an alarm is given and whether the transfer is successful is re-determined.

6. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: If a welding start signal is input in step S9, the next step is executed; if no welding start signal is input, the signal input is waited for.

7. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: If the welding result in step S11 is correct, step 2 is executed again to weld the next workpiece; if the welding result is wrong, an alarm is issued.

8. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1 is characterized in that: The host computer can record the parameters and results of each welding for subsequent tracing and analysis.

9. The method for automatically matching spot welding parameters of complex transmission shaft balance sheet according to claim 1, characterized in that: The welding controller can monitor the welding process in real time and adjust welding parameters.

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