Tow placement machine wire harness production management system based on multi-cylinder linkage and magnetic sensing feedback

Abstract

This invention provides a wire harness production management system for a wire layup machine based on multi-cylinder linkage and magnetic sensor feedback, belonging to the field of industrial control technology. It includes: a wire harness production pre-evaluation module, a multi-cylinder position response measurement module, a multi-cylinder cutting stroke analysis module, and a wire harness production management module. This solution obtains corresponding pre-evaluation results by performing wire harness production pre-evaluation, obtains corresponding measurement results by performing multi-cylinder position response measurement, obtains corresponding analysis results by performing multi-cylinder cutting stroke analysis, and obtains corresponding management results by performing wire harness production management. This invention can improve the wire harness cutting quality during wire harness production, thereby solving the technical problem of low wire harness cutting quality.

Description

Technical Field

[0001] This invention relates to the field of industrial control technology, and in particular to a wire harness production management system for wire placement machines based on multi-cylinder linkage and magnetic sensing feedback. Background Technology

[0002] With the increasingly widespread application of composite materials in aerospace, high-end manufacturing, and other fields, the wire placement machine, as the core equipment in wire harness production, directly affects the performance of the final product due to its placement accuracy and cutting quality. Traditional wire placement machines are prone to problems such as tension fluctuations, length control deviations, and inaccurate shearing surface adhesion during wire harness feeding and independent cutting of multiple bundles. This leads to gaps or overlaps in wire harness placement, affecting production quality and efficiency. To solve these problems, the main implementation method for wire harness production control using a wire placement machine is as follows: First, before wire harness production, the wire placement machine must be tested under no-load conditions. Before feeding the wire harness into the wire harness channel, the appearance quality of the 6.35mm prepreg tape is checked to ensure there are no wrinkles, damage, or abnormal adhesive content. Simultaneously, the prepreg tape is loaded one by one according to the number of wire harness channels to complete the initial threading operation, ensuring that there are no gaps or overlaps during wire harness placement. Furthermore, when laying multiple bundles, each prepreg tape needs to be cut independently. The wire placement head bundles multiple prepreg wire harnesses into adjustable lengths with varying widths, and controls the placement process accordingly. The length adjustment is achieved by cutting any wire harness. Then, in the wire harness cutting stage, when the tension sensor continuously monitors the wire harness tension value and it matches the cutting tension value, and the encoder at the end of the wire harness channel continuously monitors the wire harness length and it matches the cutting length, the controller first executes a cutting action on the wire harness according to the command received. The command includes the number of wire harnesses to be cut and the cutting time. If the current pressure in the air tank reaches the target cutting pressure, the valve between the air tank and the cylinder remains closed. If the pressure is lower than the cylinder pressure threshold, the controller will open the valve between the air tank and the cylinder according to the command, allowing the wire to be laid. The machine's air inlet replenishes the air tank until the pressure reaches the target value, then the replenishment valve is closed. At this time, the high-pressure air in the air tank rushes into the cylinder cavity through a dedicated air passage, providing a continuous and stable thrust to the piston. The piston drives the piston rod to push the blade to perform the cutting action. Under the synergistic thrust of the piston in the cylinder, the blade precisely conforms to the cutting surface of the wire harness to be cut. Combined with the position of the wire harness and the cutting trigger time in the command, the wire harness remains taut under the combined effect of tension during cutting, quickly and cleanly cutting the wire harness. Finally, the blade's elastic top column automatically resets after the air pressure is unloaded, driving the blade back to its initial position. The system acknowledges the completion of the cutting action and provides real-time feedback on the wire harness status, such as the cross-sectional quality and residual length, to the controller. The controller compares the actual wire harness status with the preset status. If the status matches, the cutting is deemed successful, and the wire harness proceeds to the next round of laying. If the status is abnormal, the controller adjusts the wire harness cutting according to the received instructions. Once all wire harness laying and cutting work for a round of products is completed, the system records the time, tension value, length, pressure, and other parameters of each wire harness cutting to ensure subsequent cutting accuracy and improve the quality of wire harness cutting.

[0003] Existing wire lay-up machines use pneumatically driven cylinders to move blades to cut wire harnesses. However, the highly integrated wire harness channels limit both the width of the wire harness and the installation space for the cylinder, preventing the use of a large-diameter cylinder design. This results in insufficient cutting force from the blades, leading to wire harness cutting failures or the inability to cut thicker wire harnesses during the wire lay-up process. Furthermore, in existing technology, when the control system sends instructions to the controller, the controller drives the cylinder to move. Because the cylinder needs to quickly build up working pressure to push the piston, which in turn drives the piston rod and then the blade, the instantaneous air consumption increases dramatically. The rated exhaust volume of the super-layout machine is limited by the limited air storage capacity of the air tank, which can provide temporary energy replenishment. This causes the air tank pressure to drop rapidly, resulting in the air circuit output pressure falling below the system's set working pressure. Insufficient air circuit output pressure leads to a reduction in the cylinder's output force and speed. Consequently, during wire harness cutting, the piston rod fails to push the blade to the preset effective cutting position, and the wire harness cutting is weak. At this point, the controller receives a successful cutting instruction and sends a stop signal, resulting in insufficient accuracy in the length of the cut wire harness segments and uneven edges. This leads to low cutting efficiency and success rate, ultimately causing low cutting quality issues in the wire harness production process. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a wire harness production management system for a wire laying machine based on multi-cylinder linkage and magnetic sensing feedback, which can improve the cutting quality during the wire harness production process.

[0005] This invention provides a wire harness production management system for a wire layup machine based on multi-cylinder linkage and magnetic sensing feedback. The system includes: a wire harness production pre-evaluation module, a multi-cylinder position response measurement module, a multi-cylinder cutting stroke analysis module, and a wire harness production management module. The wire harness production pre-evaluation module performs wire harness production pre-evaluation, first obtaining the corresponding pre-evaluation results, and then determining whether to perform two operations based on the pre-evaluation results: first, setting the cylinder diameter; and second, performing a multi-cylinder positioning pre-analysis. After the obtained pre-evaluation results are qualified, the multi-cylinder position response measurement module performs multi-cylinder position response measurement, first obtaining the corresponding measurement results, and then determining whether to perform an adjustment operation based on the measurement results. After the obtained measurement results are qualified, the multi-cylinder cutting stroke analysis module performs multi-cylinder cutting stroke analysis, first obtaining the corresponding analysis results, and then determining whether to perform a delay operation based on the analysis results. After the obtained analysis results are qualified, the wire harness production management module performs wire harness production management, first obtaining the corresponding management results, and then determining whether to send a wire harness management qualified notification to preset personnel based on the management results.

[0006] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following:

[0007] 1. By performing wire harness production pre-assessment to obtain corresponding pre-assessment results, it is helpful to accurately assess the qualification and adaptability of instantaneous pressure drop and instantaneous flow peak of the cylinder before multi-cylinder linkage, improve the accuracy of predicting the qualification of air circuit parameters before multi-cylinder linkage starts, and thus improve the effectiveness of assessing the change state of cylinder exhaust flow in the filament placement machine. By performing force multiplier cylinder position response measurement to obtain corresponding measurement results, it is helpful to accurately assess the delay of the piston action of the force multiplier cylinder and the synchronization of multi-cylinder response under multi-cylinder linkage, enhance the dynamic control capability of the average pressure change rate of the force multiplier cylinder, and improve the adaptability of the cylinder action response speed to the preset standard. By performing force multiplier cylinder cutting stroke analysis to obtain corresponding analysis results, it is helpful to accurately assess the fit between the force multiplier cylinders during multi-cylinder cutting, enhance the dynamic calibration of the consistency of the multi-cylinder cutting stroke, and improve the accuracy and adaptability of multi-cylinder linkage cutting action. By performing wire harness production management to obtain corresponding management results, it is helpful to accurately assess the accuracy and quality control level of wire harness production management, improve the effectiveness of wire harness cutting accuracy control, and enhance the dynamic optimization capability of the wire harness production management process.

[0008] 2. Setting the cylinder diameter helps to improve the shearing force. Compared with existing technologies, in the highly integrated wire harness channel, the width of the wire harness is limited and the installation space of the cylinder is compressed, which makes it impossible to use a large cylinder diameter design, resulting in insufficient blade shearing force. This solution helps to significantly improve the blade shearing force within the limited cylinder installation space, enhance the cylinder output thrust capability in the scenario of narrow cylinder installation space and highly integrated wire harness channel, and strengthen the effective execution of multi-cylinder linkage cutting action in space-constrained scenarios.

[0009] 3. By adding a magnetic sensor at a preset position in each multiplier cylinder, compared to existing technologies, insufficient air output pressure leads to a decrease in cylinder output force and speed, causing the piston rod to fail to push the blade to the preset effective cutting position during wire harness cutting and resulting in weak wire harness cutting. This solution helps to quickly correct cutting position deviations, compensate for cutting failures caused by insufficient cutting force, enhance the accuracy of multiplier cylinder position control under fluctuating air pressure scenarios, and improve the reliability and stability of the blade reaching the preset effective cutting position.

[0010] 4. By implementing multi-cylinder position synchronization and linkage control, the consistency of multi-cylinder actions can be improved. Compared with the existing technology, the controller sends out a stop signal after receiving the cutting success instruction, resulting in insufficient accuracy of the cut wire harness segment length and uneven edges. This solution helps to enhance the precision and coordination of multi-cylinder linkage cutting actions, improve the wire laying machine's ability to monitor segment length accuracy and edge quality during wire harness cutting, strengthen the data support role of magnetic sensor feedback in multi-cylinder synchronous status monitoring, and ensure the quality of wire harness cutting. Attached Figure Description

[0011] Figure 1 This is a structural diagram of a filament placement machine based on multi-cylinder linkage and magnetic sensing feedback provided in an embodiment of the present invention;

[0012] Figure 1 In the middle section: 1. Air outlet; 2. Air inlet; 3. Magnetic sensor; 4. Power cylinder body; 5. Wiring harness channel; 6. Blade channel;

[0013] Figure 2 This is a side view of the filament placement machine based on multi-cylinder linkage and magnetic sensing feedback provided in an embodiment of the present invention;

[0014] Figure 2 In the middle: 5. Wire harness channel; 7. Piston rod; 8. Piston; 9. Blade elastic top post; 10. Blade;

[0015] Figure 3 This is a flowchart of the wire harness production management system for a wire laying machine based on multi-cylinder linkage and magnetic sensing feedback provided in an embodiment of the present invention;

[0016] Figure 4 This is a diagram of the pre-evaluation architecture of the wire harness production management system based on multi-cylinder linkage and magnetic sensing feedback provided in this embodiment of the invention.

[0017] Figure 5 This is a diagram illustrating the multi-cylinder cutting stroke analysis architecture of the wire harness production management system for a wire laying machine based on multi-cylinder linkage and magnetic sensing feedback, provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0019] First, such as Figure 1 The diagram shown is a structural diagram of a wire laying machine based on multi-cylinder linkage and magnetic sensing feedback provided by an embodiment of the present invention. Figure 2The diagram shown is a side view of a wire laying machine based on multi-cylinder linkage and magnetic sensing feedback according to an embodiment of the present invention. Continuous wire bundles are laid according to a predetermined path and method to form a preform of composite material. The specific process is as follows: First, the wire bundles are placed into the wire bundle channel 5, where they are kept in an orderly arrangement under the constraint of the channel 5 and continuously transported to the laying area. Simultaneously, an external air source is connected through the air inlet 2 to provide compressed air power to the multiplier cylinder 4. After the compressed air enters the multiplier cylinder 4 through the air inlet 2, it contains multiple cavities. Each cavity contains a piston 8, which is connected in series to form a whole. This drives the pistons 8 connected in series on a cylinder rod to move. The pistons 8 drive the piston rod 7 to push the blade 10 to perform a cutting action. At the same time... The magnetic sensor 3 is connected to the power cylinder 4. The wire laying machine monitors the position of each power cylinder 4 in real time through the magnetic sensor 3 and feeds the signal back to the controller. The controller controls the action of the power cylinder 4 in coordination with the preset instructions and detection signals to achieve precise positioning of the wire harness. When the wire harness needs to be cut, the blade 10 moves quickly along the blade channel 6 and intersects with the wire harness path in the wire harness channel 5 to complete the wire harness cutting. After the cutting is completed, the blade elastic top post 9 is used to reset the blade 10 and prevent the blade 10 from folding back. The air outlet 1 is used to discharge the compressed air in the power cylinder 4 after the work is done, ensuring that the piston 8 is reset smoothly. Then the wire harness continues to be transported through the wire harness channel 5. Through the above cycle, the wire harness is continuously laid in the laying area, and finally a wire harness preform with a specific shape and performance is formed.

[0020] This invention provides a wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback. For example... Figure 3 The flowchart shown is for a wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensor feedback. The system's processing flow can include the following modules:

[0021] The wire harness production pre-assessment module obtains corresponding pre-assessment results by performing a wire harness production pre-assessment. It determines whether the instantaneous pressure drop result of the air circuit is within the preset range of the instantaneous pressure drop result of the air circuit, and whether the instantaneous flow peak result of the air circuit is within the preset range of the instantaneous flow peak result of the air circuit. If the instantaneous pressure drop result of the air circuit is within the preset range of the instantaneous pressure drop result of the air circuit, and the instantaneous flow peak result of the air circuit is within the preset range of the instantaneous flow peak result of the air circuit, a qualified prompt for the wire laying machine is sent to the preset personnel. Otherwise, the pressure stabilization control of the cylinder body air circuit is performed. By performing the wire harness production pre-assessment, the accuracy of the prediction of the qualified air circuit parameters before the multi-cylinder linkage start-up is improved, thereby improving the effectiveness of the assessment of the change state of the exhaust flow of the wire laying machine cylinder.

[0022] The multiplier cylinder position response measurement module: This module performs multiplier cylinder position response measurement to obtain corresponding results. If the actual wire harness shear tension value reaches the preset wire harness shear tension value, and the actual wire harness shear length reaches the preset wire harness shear length, a multiplier cylinder position response determination is performed. If the actual wire harness shear tension value does not reach the preset wire harness shear tension value, or the actual wire harness shear length does not reach the preset wire harness shear length, a wire harness not reaching the shearing standard prompt is sent to the designated personnel. Performing multiplier cylinder position response measurement helps improve the dynamic control capability of the multiplier cylinder's average pressure change rate, thereby improving the adaptability of the cylinder's action response speed to the preset standard.

[0023] The multi-cylinder block cutting stroke analysis module: By performing multi-cylinder block cutting stroke analysis, the module obtains corresponding analysis results and compares the single-cylinder cutting stroke deviation with the preset single-cylinder cutting stroke deviation. If the single-cylinder cutting stroke deviation is greater than the preset single-cylinder cutting stroke deviation, the exhaust time is extended. If the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, multi-cylinder position synchronization control is executed. If the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation, the multi-cylinder block cutting stroke analysis continues until the single-cylinder cutting stroke deviation equals the preset single-cylinder cutting stroke deviation, at which point multi-cylinder position synchronization control is executed. Performing multi-cylinder block cutting stroke analysis helps to improve the dynamic calibration of multi-cylinder cutting stroke consistency, thereby improving the accuracy of multi-cylinder linkage cutting action.

[0024] The wire harness production management module executes wire harness production management to obtain corresponding management results, and determines whether the wire harness cutting accuracy rate is greater than or equal to the preset wire harness cutting accuracy rate. If the wire harness cutting accuracy rate is greater than or equal to the preset wire harness cutting accuracy rate, a wire harness management qualified prompt is sent to the preset personnel; otherwise, a wire harness management abnormal prompt is sent to the preset personnel. Executing wire harness production management helps to improve the effectiveness of wire harness cutting accuracy rate control, thereby improving the dynamic optimization capability of the wire harness production management process.

[0025] It should be added that, prior to the design of the wire harness production management system for the filament placement machine based on multi-cylinder linkage and magnetic sensing feedback in this application, a database storing various setting data was established. The database includes, but is not limited to, preset instantaneous pressure drop values ​​of the air path, preset single-cylinder cutting stroke deviations, preset multi-cylinder position response times, and preset wire harness cutting accuracy rates. The database fully references industry standards and technical specifications in the field of wire harness production for filament placement machines to ensure that the basic data meets general industry requirements. It also incorporates historical operating data from similar filament placement machines in long-term actual production to select representative parameter ranges. In addition, it integrates optimized data obtained through multiple simulation tests and prototype debugging, and combines specialized data obtained from multi-cylinder linkage mechanism characteristics and magnetic sensing feedback accuracy tests. The data is linked through key fields such as unified equipment number and parameter type identifier, which facilitates the system to quickly retrieve relevant data across modules according to actual needs during operation. A hybrid storage architecture combining local server storage and cloud backup is adopted. The local server uses a high-performance industrial-grade database server and is equipped with a stable relational database management system, such as MySQL (My Structured Query Language), to store core configuration data locally, ensuring that the system can retrieve data with extremely low latency during real-time operation. At the same time, the data in the local database is periodically synchronized to the cloud storage server, which uses distributed storage technology.

[0026] In this embodiment, a pre-assessment of wire harness production is performed to obtain the corresponding pre-assessment results. Based on the pre-assessment results, it is determined whether to perform cylinder diameter setting and force-multiplying cylinder positioning pre-analysis. If the results are satisfactory, the force-multiplying cylinder position response is measured; otherwise, the cylinder diameter setting and force-multiplying cylinder positioning pre-analysis are performed. This helps to increase the cylinder piston area, thereby enhancing the shearing force of the wire layer blades. The force-multiplying cylinder position response is measured to obtain the corresponding measurement results. Based on the measurement results, it is determined whether to perform force-multiplying cylinder response delay adjustment. If the results are satisfactory, the force-multiplying cylinder cutting stroke analysis is performed; otherwise, the force-multiplying cylinder response delay adjustment is performed. This helps to increase the air circuit output pressure, thereby increasing... The system enhances the output force and speed of the cylinder block, performs a force-multiplying cylinder block cutting stroke analysis, obtains the corresponding analysis results, and determines whether to extend the exhaust time based on the analysis results. If it is qualified, it performs wire harness production management; otherwise, it performs an extended exhaust time operation. This helps improve the accuracy of the blade reaching the preset effective cutting position, thereby enhancing the cutting precision of the wire harness. The system then performs wire harness production management, obtains the corresponding management results, and determines whether to send a wire harness management qualified prompt to the preset personnel based on the management results. If it is qualified, it sends a wire harness management qualified prompt to the preset personnel; otherwise, it sends a wire harness management abnormality prompt to the preset personnel. This helps improve the accuracy of wire harness segment length and edge flatness.

[0027] Furthermore, first obtain the corresponding pre-evaluation results, and then determine whether to perform two operations based on the pre-evaluation results. The specific process is as follows: Simultaneously perform cylinder air circuit instantaneous pressure drop evaluation and cylinder air circuit instantaneous flow evaluation; Cylinder air circuit instantaneous pressure drop evaluation is used to evaluate the change in cylinder air circuit pressure drop during wire harness production. Specifically, it refers to: during the period when the shearing command is triggered, the maximum value of the air circuit pressure drop is represented as the instantaneous pressure drop value, which is monitored by a high-precision dynamic pressure sensor; the ratio of the instantaneous pressure drop value to the preset instantaneous pressure drop value is represented as the instantaneous pressure drop result, which is used to evaluate the cylinder output caused by the sudden pressure drop. The preset instantaneous pressure drop value is represented by the average value of the instantaneous pressure drop value over a historical period; Cylinder air circuit instantaneous flow evaluation is used to evaluate the change in cylinder air circuit instantaneous flow. Specifically, it refers to: during the period when the shearing action is initiated... During the corresponding time period, the maximum gas flow in the gas path is represented as the instantaneous peak flow rate, monitored by a gas mass flow meter. The ratio of the instantaneous peak flow rate to the preset instantaneous peak flow rate is represented as the instantaneous peak flow rate result, reflecting the change in the exhaust flow rate of the yarn laying machine cylinder. The preset instantaneous peak flow rate is represented by the average value of the instantaneous peak flow rates over historical time periods. It is determined whether the instantaneous pressure drop result and the instantaneous peak flow rate result are within the preset range. If both the instantaneous pressure drop result and the instantaneous peak flow rate result are within the preset range, a qualified yarn laying machine notification is sent to the designated personnel; otherwise, pressure stabilization control of the cylinder's gas path is implemented.

[0028] It should be added that, such as Figure 4The diagram shown is a wire harness production pre-evaluation architecture diagram of the wire harness production management system based on multi-cylinder linkage and magnetic sensor feedback provided in this embodiment of the invention. First, a wire harness production pre-evaluation is performed, including simultaneous evaluation of the instantaneous pressure drop and instantaneous flow rate of the cylinder air path. It is determined whether the instantaneous pressure drop result is within the preset range, and whether the peak instantaneous flow rate result is within the preset range. If so, pressure stabilization control of the multiplier cylinder air path is performed, specifically as follows: The working pressure of the cylinder air path is compared with the preset working pressure. If the working pressure is greater than or equal to the preset working pressure, a qualified cylinder prompt is sent. If the working pressure is less than the preset working pressure, the cylinder diameter is set. First, it is determined whether the cylinder output thrust re-acquired after cylinder diameter setting is greater than or equal to the preset cylinder output thrust. If not, a... If an abnormality is detected in the feeder cylinder, a pre-analysis of the cylinder positioning is performed to determine if the initial position deviation of a single cylinder is equal to 0. If it is equal to 0, the corresponding cylinder is marked as a qualified cylinder, and a cylinder position response measurement is performed. If it is not equal to 0, the corresponding cylinder is marked as an abnormal cylinder, and an abnormal cylinder position adjustment is performed. Specifically, the initial position deviation of a single cylinder is determined to be greater than 0. If it is, a prompt is sent to the controller to control the opening area of ​​the exhaust valve. When the exhaust valve is detected to be opened to the preset valve area, exhaust is performed until the initial position deviation of a single cylinder is equal to 0, and a cylinder position response measurement is performed. If not, a prompt is sent to the controller to control the opening area of ​​the inlet valve. If the initial position deviation of a single cylinder is still not equal to 0 after the abnormal cylinder position adjustment is completed, an abnormal cylinder exhaust prompt is sent to the pre-set personnel.

[0029] In this embodiment, the pre-assessment of wire harness production can accurately control the actual state of instantaneous pressure drop and instantaneous flow peak in the cylinder air circuit, ensuring the fit of the cylinder air circuit before wire harness cutting, ensuring the qualification of the cylinder air circuit, reducing the deviation in wire harness cutting accuracy caused by the instability of the initial cylinder air circuit, strengthening the precise control capability of cylinder air circuit parameters, ensuring the controllability and stability of instantaneous pressure drop and instantaneous flow peak in the cylinder air circuit throughout the cutting cycle, and improving the consistency and qualification of wire harness production quality.

[0030] Furthermore, the pressure stabilization control of the cylinder's air circuit is used to reduce the instantaneous air consumption of the cylinder. The specific process is as follows: Real-time monitoring of the cylinder's air circuit output pressure during the cutting process, and its average value is expressed as the cylinder air circuit working pressure reflecting the piston movement, monitored by a piezoresistive pressure sensor; The cylinder air circuit working pressure is compared with the preset cylinder air circuit working pressure, as follows: If the cylinder air circuit working pressure is greater than or equal to the preset cylinder air circuit working pressure, a qualified cylinder prompt is sent to the filament laying machine; if the cylinder air circuit working pressure is less than the preset cylinder air circuit working pressure, the cylinder diameter is set, and the preset cylinder air circuit working pressure is expressed as the average value of the cylinder air circuit working pressure over a historical period; Setting the cylinder diameter is used to increase the shearing force, specifically as follows: A prompt to increase the number of pistons is sent to the preset operator, who then sets the same number of pistons to be added along the cylinder rod direction and connected in series on a single cylinder rod, expressed as... The multiplier cylinder is used to increase the pushing and pulling force of the piston rod after air intake. The number of pistons added is set by the preset personnel according to the actual situation. The cylinder output thrust is evaluated, and the specific process is as follows: The cylinder output thrust monitored by the S-type tension and pressure sensor is compared with the preset cylinder output thrust, which is represented by the average value of the cylinder output thrust over a historical period. If the cylinder output thrust is greater than or equal to the preset cylinder output thrust, the multiplier cylinder positioning pre-analysis is performed. If the cylinder output thrust is less than the preset cylinder output thrust, the cylinder diameter setting continues. If the number of pistons added reaches the maximum number of pistons in the multiplier cylinder, but the cylinder output thrust is still less than the preset cylinder output thrust, an abnormality prompt for the yarn laying machine cylinder is sent to the preset personnel. If the cylinder output thrust obtained again after setting the cylinder diameter is greater than or equal to the preset cylinder output thrust, the multiplier cylinder positioning pre-analysis is performed.

[0031] In this embodiment, the process of controlling the pressure stability of the multiplier cylinder air circuit helps maintain the dynamic stability of the multiplier cylinder air circuit pressure, reduces the instantaneous air consumption of the cylinder during the cutting process, provides stable thrust support for the synchronization and coordination of the multi-cylinder linkage action of the wire harness machine, provides stable air circuit pressure and thrust for the accurate acquisition and real-time response of the magnetic sensor feedback signal, reduces problems such as lag in multi-cylinder linkage action and insufficient cutting force caused by insufficient air circuit pressure or insufficient thrust, strengthens the dynamic adaptation capability of cylinder air circuit parameters and output thrust, ensures the precise controllability of cylinder action during wire harness cutting, and improves the consistency of wire harness cutting quality and the accuracy of production management.

[0032] Furthermore, the pre-analysis for positioning the multiplier cylinders is used to ensure the consistency of the initial state and position of multiple multiplier cylinders. The specific process is as follows: A magnetic sensor is added at a preset position on each multiplier cylinder by a pre-set operator. The preset position is determined in advance by the operator. The magnetic sensor is used to detect the position of each multiplier cylinder in real time in conjunction with the commands sent by the controller. The direction from the initial position point of the multiplier cylinder to the air inlet is marked as the negative direction of the multiplier cylinder position. The direction from the initial position point of the multiplier cylinder to the wiring harness is marked as the positive direction of the multiplier cylinder position. [The text abruptly ends here, likely due to an incomplete sentence or missing information.] After the return-to-initial-position action is completed, the difference between the actual position of a single cylinder monitored by the magnetic sensor and the straight-line length of the distance to the preset initial position point is represented as the initial position deviation of a single multiplier cylinder. The preset initial position point is set in advance by a designated person. It is then determined whether the initial position deviation of a single multiplier cylinder is equal to 0. If the initial position deviation is 0, the corresponding multiplier cylinder is marked as a qualified multiplier cylinder, and a multiplier cylinder position response measurement is performed. Otherwise, the corresponding multiplier cylinder is marked as an abnormal multiplier cylinder, and an abnormal multiplier cylinder position adjustment is performed. The abnormal position adjustment of the multiplier cylinder is used to improve the uniformity and qualification of the initial state of the multiplier cylinder before wire harness shearing. The specific process is as follows: Determine whether the initial position deviation of a single multiplier cylinder is greater than 0; if the initial position deviation of a single multiplier cylinder is greater than 0, send a prompt to the controller to control the opening area of ​​the exhaust valve. When the vision detection system detects that the exhaust valve is opened to the preset valve area, exhaust is performed until the initial position deviation of a single multiplier cylinder is equal to 0, and the position response measurement of the multiplier cylinder is executed; after the abnormal position adjustment of the multiplier cylinder is completed, the single multiplier cylinder... If the initial position deviation of the multiplier cylinder is still not equal to 0, a multiplier cylinder exhaust abnormality prompt is sent to the preset personnel; if the initial position deviation of a single multiplier cylinder is less than 0, a prompt is sent to the controller to control the opening area of ​​the intake valve. When the vision detection system detects that the intake valve is opened to the preset valve area, air intake is performed until the initial position deviation of a single multiplier cylinder is equal to 0, and the multiplier cylinder position response measurement is performed; if the initial position deviation of a single multiplier cylinder is still not equal to 0 after the abnormal multiplier cylinder position adjustment is completed, a multiplier cylinder intake abnormality prompt is sent to the preset personnel.

[0033] In this embodiment, the initial position information of each multi-force cylinder can be captured in real time and accurately through pre-analysis of the multi-force cylinder positioning. By dynamically calibrating the initial position deviation, the initial state and position height of multiple multi-force cylinders are ensured to be consistent, which improves the consistency of synchronous start-up and precise coordination of multi-cylinder linkage actions, strengthens the real-time performance and accuracy of feedback in cylinder position monitoring, ensures the accurate matching of the magnetic sensor signal and the actual position of the cylinder, and improves the accuracy and consistency of cylinder position control in wire harness production management of wire harness machine.

[0034] Furthermore, the specific process for measuring the position response of the multiplier cylinder is as follows: The actual shear tension value of the wiring harness monitored by the tension sensor is compared with a preset shear tension value, which is represented by the average shear tension value over a historical time period; the actual shear length of the wiring harness monitored by the magnetic sensor is compared with a preset shear length, which is represented by the average shear length over a historical time period; if the actual shear tension value reaches the preset shear tension value and the actual shear length reaches the preset shear length, the position response of the multiplier cylinder is determined; if the actual shear tension value does not reach the preset shear tension value, or the actual shear length does not reach the preset shear length, the position response of the multiplier cylinder is determined; if the actual shear tension value does not reach the preset shear tension value, or the actual shear length does not reach the preset shear length, the position response of the multiplier cylinder is determined. If the cutting length does not reach the preset wire harness cutting length, a warning message indicating that the wire harness has not reached the cutting standard is sent to the preset personnel. The position response determination of the multiplier cylinder is used to assess the delay in the action of the multiplier cylinder piston. The specific process is as follows: The time difference between the multiplier cylinder piston receiving the cutting command and the multiplier cylinder piston rod responding to the cutting command is expressed as the multiplier cylinder position response duration, monitored by a magnetic sensor; the ratio of the multiplier cylinder position response duration to the preset multiplier cylinder position response duration is expressed as the multiplier cylinder position response duration result reflecting the synchronicity of multiple multiplier cylinder responses. The preset multiplier cylinder position response duration is represented by the average of the multiplier cylinder position response durations over a historical time period; the multiplier cylinder position response duration... The results are compared with the preset response time of the multiplier cylinder position. If the response time is greater than or equal to the preset response time, the corresponding multiplier cylinder is marked as an abnormal response cylinder, and the response delay is adjusted. Otherwise, the corresponding cylinder is marked as a qualified response cylinder, and a multiplier cylinder cutting stroke analysis is performed. The response delay adjustment is used to improve the action response speed of the multiplier cylinder. The average change rate of the multiplier cylinder pressure is obtained. The average change rate of the multiplier cylinder pressure is expressed as the ratio of the difference between the pressure at the beginning and end of the action time to the action time, obtained from the pressure sensor. Monitoring; determining whether the average change rate of the multiplier cylinder pressure is less than or equal to the preset average change rate of the multiplier cylinder pressure, which is represented by the average of the average change rates of the multiplier cylinder pressure over a historical period; if so, a qualified multiplier cylinder pressure change prompt is sent to the preset personnel; otherwise, an intake prompt is sent to the preset personnel until the average change rate of the multiplier cylinder pressure is less than or equal to the preset average change rate of the multiplier cylinder pressure, and then the multiplier cylinder cutting stroke analysis is performed. After obtaining the average change rate of the multiplier cylinder pressure, if the average change rate of the multiplier cylinder pressure is still greater than the preset average change rate of the multiplier cylinder pressure, an abnormal multiplier cylinder pressure change rate prompt is sent to the preset personnel.

[0035] In this embodiment, by performing a force-multiplying cylinder position response measurement, it is possible to accurately verify whether the wire harness shearing tension and length meet the preset standards, providing qualified basic cutting parameters for force-multiplying cylinder position response evaluation, improving the action response speed of the force-multiplying cylinder, ensuring the synchronization and timeliness of multi-cylinder linkage actions, strengthening the real-time feedback of magnetic sensors, improving the precise control capability of cylinder action response in wire harness production management of the wire harness machine, further improving the timeliness of force-multiplying cylinder action response based on magnetic sensor feedback, and enhancing the stability and controllability of the multi-cylinder linkage wire harness production process.

[0036] Furthermore, the specific process of the multiplier cylinder cutting stroke analysis is as follows: The actual distance the piston rod of a single multiplier cylinder pushes the blade to move is represented as the actual single-cylinder cutting stroke; the magnetic sensor monitors the actual single-cylinder cutting stroke, and the difference between it and the preset single-cylinder cutting stroke is represented as the single-cylinder cutting stroke deviation, which reflects the uneven distribution of the overall shearing force. The preset single-cylinder cutting stroke is represented by the average value of the single-cylinder cutting stroke over a historical period; the single-cylinder cutting stroke deviation is compared with the preset single-cylinder cutting stroke deviation; if the single-cylinder cutting stroke deviation is greater than the preset single-cylinder cutting stroke deviation, the exhaust time is extended, and the preset single-cylinder cutting stroke deviation is set to 0 by a preset operator; if the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, multi-cylinder position synchronization control is executed; if the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation, the multiplier cylinder cutting stroke analysis continues until the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, at which point multi-cylinder position synchronization control is executed.

[0037] It should be added that, such as Figure 5As shown in the figure, the multi-cylinder linkage and magnetic sensing feedback-based wire harness production management system for wire laying machines provided in this embodiment of the invention has a multi-cylinder cutting stroke analysis architecture. First, the multi-cylinder cutting stroke analysis is performed, comparing the single-cylinder cutting stroke deviation with the preset single-cylinder cutting stroke deviation. There are three possibilities: if the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation; if the single-cylinder cutting stroke deviation is greater than the preset single-cylinder cutting stroke deviation, the exhaust time is extended; if the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation, the multi-cylinder cutting stroke analysis continues until the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation. If the cylinder cutting stroke deviation equals the preset single-cylinder cutting stroke deviation, then multi-cylinder position synchronization control is executed, including simultaneous multi-cylinder position synchronization error determination and multi-cylinder stroke consistency determination. For multi-cylinder position synchronization error determination, firstly, the multi-cylinder position response time is compared with the preset multi-cylinder position response time. If the multi-cylinder position response time is less than the preset multi-cylinder position response time, the corresponding multi-cylinder block is marked as an early-response multi-cylinder block, and the cylinder exhaust speed is adjusted. If the multi-cylinder position response time equals the preset multi-cylinder position response time, the corresponding multi-cylinder block is marked as a qualified-response multi-cylinder block. If the multi-cylinder position response time is greater than the preset multi-cylinder position response time, the corresponding multi-cylinder is marked as a lagging response multi-cylinder, and a multi-cylinder position response anomaly alert is sent to the preset personnel. For multi-cylinder stroke consistency determination, the multi-cylinder distance synchronization error is compared with the preset multi-cylinder distance synchronization error. If the multi-cylinder distance synchronization error is less than or equal to the preset multi-cylinder distance synchronization error, the corresponding multi-cylinder is marked as a qualified position multi-cylinder. If the multi-cylinder distance synchronization error is greater than the preset multi-cylinder distance synchronization error, the corresponding multi-cylinder is marked as an abnormal position multi-cylinder, and an alert is sent to the preset personnel to adjust the position. The cutting stroke of the cylinder is adjusted multiple times the normal position until the single-cylinder cutting stroke deviation equals the preset single-cylinder cutting stroke deviation. The result of the multi-cylinder position synchronization linkage control is obtained. It is then determined whether the result of the multi-cylinder position synchronization linkage control is less than or equal to the preset multi-cylinder position synchronization linkage control result. If yes, wire harness production management is executed; otherwise, a multi-cylinder position synchronization linkage abnormality is sent to the preset personnel. Finally, wire harness production management is executed, and it is determined whether the wire harness cutting accuracy rate is greater than or equal to the preset wire harness cutting accuracy rate. If yes, a wire harness management qualified prompt is sent to the preset personnel; otherwise, a wire harness management abnormality prompt is sent to the preset personnel.

[0038] In this embodiment, performing force-multiplying cylinder cutting stroke analysis helps to identify the uneven distribution of overall wire harness shear force caused by abnormal single-cylinder cutting stroke in real time. By extending the venting time or continuously calibrating the stroke, the accuracy of the matching of each single-cylinder cutting stroke is ensured, guaranteeing the high consistency and synchronization of the strokes of each force-multiplying cylinder in the multi-cylinder linkage cutting action. This reduces wire harness production quality problems caused by abnormal multi-cylinder strokes, enhances the stability and controllability of the wire harness cutting process during force-multiplying cylinder linkage, improves the uniformity and consistency of wire harness production quality, and strengthens the production management's ability to correct and dynamically optimize single-cylinder stroke deviations in real time.

[0039] Furthermore, the specific process of extending the exhaust time is as follows: a prompt is sent to the controller to extend the exhaust time; simultaneously, the single-cylinder cutting stroke deviation is monitored in real time; it is determined whether the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation; when the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, the extension of the exhaust time is stopped, and multi-cylinder position synchronization linkage control is executed; when the single-cylinder cutting stroke deviation is not equal to the preset single-cylinder cutting stroke deviation, a single-cylinder cutting stroke abnormality prompt is sent to the preset personnel; the extended exhaust time operation is used to reduce the pressure in a single multiplier cylinder to drive the multiplier cylinder piston rod to the preset cutting position.

[0040] In this embodiment, extending the exhaust time helps to precisely extend the exhaust time of the multiplier cylinder, thereby reducing the pressure inside a single multiplier cylinder, driving the piston rod to accurately reach the preset cutting position, correcting the single-cylinder cutting stroke deviation to the preset standard in real time, strengthening the data support and dynamic feedback role of the magnetic sensor in the real-time monitoring of the single-cylinder cutting stroke deviation, ensuring the high consistency and positional uniformity of the stroke of each multiplier cylinder in the multi-cylinder linkage cutting action, thereby improving the accuracy and consistency of wire harness production quality.

[0041] Furthermore, multi-cylinder position synchronization control is implemented to improve the consistency of multi-cylinder actions, including: determining multi-cylinder position synchronization error and multi-cylinder stroke consistency. The multi-cylinder position synchronization error determination is used to assess the degree of synchronization of multi-cylinder actions. The specific process is as follows: the counting module in the controller counts the time required for the multi-cylinder cylinder to reach the preset cutting position from the start of its action, and this time is expressed as the multi-cylinder position response time. The multi-cylinder position response time is compared with the preset multi-cylinder position response time. If the multi-cylinder position response time is less than the preset multi-cylinder position response time, the corresponding multi-cylinder is marked as an early-responding multi-cylinder, and the cylinder exhaust speed is adjusted. The preset multi-cylinder position response time is represented by the average of multi-cylinder position response times over a historical period. If the multi-cylinder position response time is equal to the preset multi-cylinder position response time, the corresponding multi-cylinder is marked as a qualified-responding multi-cylinder. If the multi-cylinder position response time is greater than the preset multi-cylinder position response time, the corresponding multi-cylinder is marked as a delayed-responding multi-cylinder, and a multi-cylinder position response anomaly alert is sent to the designated personnel.

[0042] In this embodiment, by executing multi-cylinder position synchronization linkage control, the synchronicity and consistency of multi-cylinder action start-up and execution can be ensured, the real-time capture capability of magnetic sensor feedback in multi-cylinder position response time can be enhanced, the stability and controllability of multi-cylinder linkage wire bundle cutting process can be improved, the uniformity and consistency of wire bundle production quality can be improved, the ability of production management to quickly identify and correct multi-cylinder synchronization deviation can be enhanced, and the continuity of multi-cylinder linkage production wire bundle movement line can be ensured.

[0043] Furthermore, cylinder exhaust speed adjustment is used to reduce the pressure within the cylinder that responds ahead of schedule. The specific process is as follows: A prompt is sent to the controller to adjust the exhaust speed of the cylinder that responds ahead of schedule to a preset maximum exhaust speed, which is monitored by a miniature differential pressure flow sensor; if the reacquired multi-cylinder position response time is still less than or greater than the preset multi-cylinder position response time, a multi-cylinder position response anomaly prompt is sent to a preset personnel; if the reacquired multi-cylinder position response time is equal to the preset multi-cylinder position response time, the corresponding cylinder is marked as a qualified response cylinder; multi-cylinder stroke consistency judgment is used to evaluate... The process for assessing the consistency of multi-cylinder stroke is as follows: The cutting stroke distance of all multi-cylinder blocks is statistically analyzed using magnetic sensors, and its standard deviation is expressed as the multi-cylinder distance synchronization error. This multi-cylinder distance synchronization error is compared with a preset multi-cylinder distance synchronization error. If the multi-cylinder distance synchronization error is less than or equal to the preset multi-cylinder distance synchronization error, the corresponding multi-cylinder block is marked as a qualified multi-cylinder block; otherwise, it is marked as an abnormal multi-cylinder block, and a prompt is sent to the designated personnel to adjust the cutting stroke of the abnormal multi-cylinder block until the single-cylinder cutting stroke deviation equals the preset single-cylinder cutting stroke deviation.

[0044] In this embodiment, by adjusting the cylinder exhaust speed, the consistency of the actions of the filament placer in subsequent multi-cylinder linkage is ensured, avoiding delays or advances in multi-cylinder linkage caused by abnormal responses of some multi-cylinder cylinders. This maintains the amplitude synchronization of multi-cylinder linkage operations, further ensuring the accuracy and stability of wire harness production by the filament placer, ensuring that the filament placer can continuously and stably output wire harness products that meet quality standards, improving wire harness production efficiency, and strengthening the ability to finely control the wire harness production process.

[0045] Furthermore, the specific process for executing wire harness production management is as follows: Based on the acquired multi-cylinder position synchronization control result, wire harness production management is executed. It is determined whether the multi-cylinder position synchronization control result is less than or equal to the preset multi-cylinder position synchronization control result. If so, wire harness production management is executed; otherwise, a multi-cylinder position synchronization abnormality is sent to the preset personnel. The specific method for obtaining the multi-cylinder position synchronization control result S is as follows:

[0046] ;

[0047] Among them, K1 is the consistency weighting coefficient of multiple cylinder stroke, and K2 is the time synchronization weighting coefficient, both of which are set in advance by preset personnel; The deviation in single-cylinder cutting stroke is measured in millimeters and is monitored by a magnetic sensor. This indicates the maximum deviation of the cylinder block stroke under single-force conditions, expressed in millimeters, and is monitored by a magnetic sensor. This indicates the multi-cylinder position response time, in seconds, monitored by the controller's timing module. This represents the maximum position response time of the multi-cylinder system, measured in seconds, and is monitored by the controller's timing module.

[0048] It should be added that the parameters do not exist independently, but are interconnected. If the stroke of the multiple cylinders is inconsistent, it will directly lead to loss of control over machining accuracy, cause the response time of the multiple cylinders to be out of sync, and result in imbalance of the synchronous linkage control of the multiple cylinders. Based on the correlation of the various parameters, it can meet the actual requirements of wire harness production, avoid failures, and thus improve the quality of wire harness products.

[0049] In addition, the controller's counting module counts the number of wire harness cuts and the number of accurate wire harness cuts. The ratio of the number of accurate wire harness cuts to the total number of wire harness cuts is expressed as the wire harness cut accuracy rate, reflecting the accuracy of wire harness production management. The number of accurate wire harness cuts is represented by the number of cuts corresponding to a wire harness segment length error less than a preset wire harness segment length error and a wire harness cut edge roughness less than a preset wire harness cut edge roughness. The wire harness segment length error is represented by the average of the difference between the actual wire harness length monitored by a magnetic sensor and the set wire harness length, reflecting the accuracy of wire harness length cutting. The wire harness cut edge roughness includes... This includes: harness contour undulation and harness contour arithmetic mean deviation; the difference between the maximum and minimum harness lengths is expressed as harness contour undulation, reflecting the degree of unevenness of the harness edge; the arithmetic mean of the absolute values ​​of the distances from each preset sampling point on the harness edge to the harness midpoint is expressed as harness contour arithmetic mean deviation, reflecting the degree of undulation of the harness edge, the preset sampling points are set in advance by preset personnel; if the harness cutting accuracy is greater than or equal to the preset harness cutting accuracy, a harness management qualified prompt is sent to the preset personnel, otherwise, a harness management abnormality prompt is sent to the preset personnel.

[0050] In this embodiment, wire harness production management is implemented to ensure refined control of the wire harness production process. By statistically monitoring indicators such as wire harness cutting accuracy, segment length error, and edge roughness, the system comprehensively ensures the accuracy of wire harness length and edge regularity, reduces potential wire harness quality problems, ensures real-time feedback of wire harness cutting accuracy, promptly alerts to qualified or abnormal states, triggers personnel to adjust parameters accordingly, maintains stable system operation, improves fault response efficiency, reduces cost losses, ensures continuous production of high-quality wire harnesses, and enhances the capability and adaptability of wire harness production management.

[0051] In summary, the embodiments of this application, by performing wire harness production pre-assessment to obtain corresponding pre-assessment results, help to accurately assess the qualification and adaptability of instantaneous pressure drop and instantaneous flow peak of the cylinder before multi-cylinder linkage, improve the accuracy of predicting the qualification of air circuit parameters before multi-cylinder linkage starts, thereby improving the effectiveness of assessing the change state of cylinder exhaust flow in the filament placement machine. Performing force-multiplying cylinder position response measurement to obtain corresponding measurement results helps to accurately assess the delay of the piston action of the force-multiplying cylinder and the synchronization of multi-cylinder response under multi-cylinder linkage conditions, enhances the dynamic control capability of the average pressure change rate of the force-multiplying cylinder, and improves the adaptability of the cylinder action response speed to preset standards. Performing force-multiplying cylinder cutting stroke analysis to obtain corresponding analysis results helps to accurately assess the fit between force-multiplying cylinders during multi-cylinder cutting, enhances the dynamic calibration of multi-cylinder cutting stroke consistency, and improves the accuracy and adaptability of multi-cylinder linkage cutting actions. Performing wire harness production management to obtain corresponding management results helps to accurately assess the accuracy and quality control level of wire harness production management, improves the effectiveness of wire harness cutting accuracy control, and enhances the dynamic optimization capability of the wire harness production management process.

[0052] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0053] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0054] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0055] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0056] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0057] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other.

[0058] Artificial intelligence (AI) is the study of how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, and planning). It encompasses both hardware and software technologies. AI hardware technologies generally include sensors, dedicated AI chips, cloud computing, distributed storage, and big data processing. AI software technologies mainly include computer vision, speech recognition, natural language processing, machine learning / deep learning, big data processing, and knowledge graph technologies.

[0059] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0060] The above description is only an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback, characterized in that, include: The module includes a wire harness production pre-assessment module, a power cylinder position response measurement module, a power cylinder cutting stroke analysis module, and a wire harness production management module. The wire harness production pre-evaluation module is used to perform wire harness production pre-evaluation. First, it obtains the corresponding pre-evaluation results, and then determines whether to perform two operations based on the pre-evaluation results: one is to set the cylinder diameter, and the other is to perform a pre-analysis of the multiplier cylinder positioning. By performing a pre-assessment of wire harness production to obtain the corresponding pre-assessment results, it is determined whether the instantaneous pressure drop result of the air circuit is within the preset instantaneous pressure drop result range, and whether the instantaneous flow peak result of the air circuit is within the preset instantaneous flow peak result range. If the instantaneous pressure drop result of the air circuit is within the preset instantaneous pressure drop result range, and the instantaneous flow peak result of the air circuit is within the preset instantaneous flow peak result range, a qualified prompt for the wire laying machine is sent to the preset personnel; otherwise, the pressure stabilization control of the multiplier cylinder air circuit is performed. After the pre-evaluation result is qualified, the cylinder position response measurement module performs the cylinder position response measurement, first obtains the corresponding measurement result, and then determines whether to perform adjustment operation based on the measurement result. The corresponding measurement results are obtained by performing the position response measurement of the multiplier cylinder. If the actual wire harness shearing tension value reaches the preset wire harness shearing tension value and the actual wire harness shearing length reaches the preset wire harness shearing length, the position response of the multiplier cylinder is determined. If the actual wire harness shearing tension value does not reach the preset wire harness shearing tension value, or the actual wire harness shearing length does not reach the preset wire harness shearing length, a wire harness not reaching the shearing standard prompt will be sent to the preset personnel. The multiplier cylinder cutting stroke analysis module is used to perform multiplier cylinder cutting stroke analysis after the obtained measurement results are qualified. First, the corresponding analysis results are obtained, and then the delay operation is determined based on the analysis results. The analysis results are obtained by performing a multiplier cylinder block cutting stroke analysis. The single-cylinder cutting stroke deviation is compared with the preset single-cylinder cutting stroke deviation. If the single-cylinder cutting stroke deviation is greater than the preset single-cylinder cutting stroke deviation, the exhaust time is extended. If the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, multi-cylinder position synchronization control is executed. If the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation, the multiplier cylinder block cutting stroke analysis continues until the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, at which point multi-cylinder position synchronization control is executed. The wire harness production management module is used to perform wire harness production management after the obtained analysis results are qualified. First, it obtains the corresponding management results, and then determines whether to send a wire harness management qualified prompt to the preset personnel based on the management results.

2. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 1, characterized in that, The process involves first obtaining the corresponding pre-assessment results, and then determining whether to perform the two operations based on the pre-assessment results. The specific process is as follows: Simultaneously, the instantaneous pressure drop and instantaneous flow rate of the cylinder air circuit are evaluated. The assessment of instantaneous pressure drop in the cylinder air circuit specifically refers to: The maximum pressure drop in the gas path is expressed as the instantaneous pressure drop in the gas path; The ratio of the instantaneous pressure drop in the gas path to the preset instantaneous pressure drop in the gas path is expressed as the instantaneous pressure drop result in the gas path; The instantaneous flow rate assessment of the cylinder air passage specifically refers to: During the time period from the start to the end of the shearing action, the maximum gas flow rate in the gas path is expressed as the instantaneous peak flow rate of the gas path. The ratio of the instantaneous peak flow rate of the gas path to the preset instantaneous peak flow rate of the gas path is expressed as the instantaneous peak flow rate result of the gas path; Determine whether the instantaneous pressure drop result of the gas path is within the preset range of instantaneous pressure drop results of the gas path, and whether the instantaneous flow peak result of the gas path is within the preset range of instantaneous flow peak result of the gas path; If the instantaneous pressure drop in the air circuit is within the preset range and the instantaneous flow rate peak value is within the preset range, a qualified prompt for the filament laying machine will be sent to the preset personnel; otherwise, pressure stabilization control of the air circuit in the multiplier cylinder will be implemented.

3. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 2, characterized in that, The pressure stabilization control of the cylinder block air circuit is achieved through the following process: The real-time output pressure of the cylinder's air circuit during the cutting process is monitored, and its average value is expressed as the working pressure of the cylinder's air circuit to reflect the piston's movement. The working pressure of the cylinder air circuit is compared with the preset working pressure of the cylinder air circuit. The process is as follows: If the working pressure of the cylinder air circuit is greater than or equal to the preset working pressure of the cylinder air circuit, a qualified cylinder notification for the filament laying machine will be sent. If the cylinder air circuit working pressure is less than the preset cylinder air circuit working pressure, then the cylinder bore needs to be set. The specific process is as follows: Send a prompt to increase the number of pistons to the preset personnel to set the same number of pistons to be added along the cylinder rod direction and connected in series on a single cylinder rod, which is represented as a multiplier cylinder; The specific process for evaluating cylinder output thrust is as follows: Compare the cylinder output thrust with the preset cylinder output thrust; If the cylinder output thrust is greater than or equal to the preset cylinder output thrust, then perform the multiplier cylinder positioning pre-analysis. If the cylinder output thrust is less than the preset cylinder output thrust, then continue setting the cylinder bore. If the number of pistons increases to the maximum number of pistons in the multiplier cylinder, but the cylinder output thrust is still less than the preset cylinder output thrust, then a cylinder abnormality warning for the filament laying machine will be sent to the preset personnel. If the cylinder output thrust obtained after setting the cylinder bore is greater than or equal to the preset cylinder output thrust, perform a pre-analysis of the cylinder block positioning.

4. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 3, characterized in that, The pre-analysis of the cylinder block positioning for the multiplier cylinder is as follows: Send a message to designated personnel to add magnetic sensors at predetermined positions on each multiplier cylinder. Mark the direction from the initial position point of the power cylinder block to the air intake as the negative direction of the power cylinder block position; Mark the direction from the initial position point of the power cylinder block to the wiring harness as the positive position of the power cylinder block; After the multiplier cylinder has finished moving back to its initial position, the difference between the actual position of a single cylinder and the distance to the preset initial position is expressed as the initial position deviation of a single multiplier cylinder. Determine whether the initial position deviation of a single multiplier cylinder is equal to 0; If the initial position deviation of a single multiplier cylinder is equal to 0, the corresponding multiplier cylinder is marked as a qualified multiplier cylinder and the position response measurement of the multiplier cylinder is performed; otherwise, the corresponding multiplier cylinder is marked as an abnormal multiplier cylinder and the position of the abnormal multiplier cylinder is adjusted. The specific process for adjusting the position of the abnormal force-multiplying cylinder is as follows: Determine whether the initial position deviation of a single multiplier cylinder is greater than 0; If the initial position deviation of a single multiplier cylinder is greater than 0, a prompt is sent to the controller to control the opening area of ​​the exhaust valve. When the exhaust valve is detected to be open to the preset valve area, exhaust is performed until the initial position deviation of a single multiplier cylinder is equal to 0, and the position response measurement of the multiplier cylinder is executed. If the initial position deviation of a single multiplier cylinder is still not equal to 0 after the abnormal multiplier cylinder position adjustment is completed, a multiplier cylinder exhaust abnormality prompt will be sent to the preset personnel. If the initial position deviation of a single multiplier cylinder is less than 0, a prompt is sent to the controller to control the opening area of ​​the air inlet valve. When the air inlet valve is detected to be open to the preset valve area, air intake is performed until the initial position deviation of a single multiplier cylinder is equal to 0, and the position response measurement of the multiplier cylinder is executed. If the initial position deviation of a single cylinder is still not equal to 0 after the abnormal cylinder position adjustment is completed, an abnormal cylinder intake warning will be sent to the designated personnel.

5. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 4, characterized in that, The specific process for measuring the position response of the cylinder block using the force multiplier is as follows: Compare the actual wire harness shear tension value with the preset wire harness shear tension value; Compare the actual wire harness cutting length with the preset wire harness cutting length; If the actual wire harness shearing tension value reaches the preset wire harness shearing tension value, and the actual wire harness shearing length reaches the preset wire harness shearing length, the position response of the multiplier cylinder is determined. If the actual wire harness shearing tension value does not reach the preset wire harness shearing tension value, or the actual wire harness shearing length does not reach the preset wire harness shearing length, a wire harness not reaching the shearing standard prompt will be sent to the preset personnel. The specific process for determining the position response of the multiplier cylinder is as follows: The time difference between the piston receiving the shearing command and the piston rod responding to the shearing command in the multiplier cylinder is expressed as the position response time of the multiplier cylinder. The result of the ratio of the position response time of the multiplier cylinder to the preset position response time of the multiplier cylinder is expressed as the position response time result of the multiplier cylinder; Compare the result of the position response time of the multiplier cylinder with the preset result of the position response time of the multiplier cylinder; If the response time of the multiplier cylinder position is greater than or equal to the preset response time of the multiplier cylinder position, the corresponding multiplier cylinder will be marked as an abnormal response cylinder and the response delay of the multiplier cylinder will be adjusted. Otherwise, the corresponding multiplier cylinder will be marked as a qualified response cylinder and the multiplier cylinder cutting stroke analysis will be performed. Obtain the average rate of change of pressure in the multiplier cylinder block; The average rate of change of pressure of the multiplier cylinder is expressed as the ratio of the pressure difference between the initial and final moments of the action time of the multiplier cylinder to the length of the action time of the multiplier cylinder. Determine whether the average rate of change of pressure in the multiplier cylinder is less than or equal to the preset average rate of change of pressure in the multiplier cylinder. If yes, a qualified pressure change notification for the multiplier cylinder is sent to the preset personnel; otherwise, an intake notification is sent to the preset personnel until the average pressure change rate of the multiplier cylinder is less than or equal to the preset average pressure change rate of the multiplier cylinder, and then the multiplier cylinder cutting stroke analysis is performed.

6. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 5, characterized in that, The specific process of the analysis of the cutting stroke of the multiplier cylinder block is as follows: The actual distance that the piston rod of a single multiplier cylinder pushes the blade to move is expressed as the actual single-cylinder cutting stroke; The difference between the actual single-cylinder cutting stroke and the preset single-cylinder cutting stroke is expressed as the single-cylinder cutting stroke deviation; The single-cylinder cutting stroke deviation is compared with the preset single-cylinder cutting stroke deviation; If the single-cylinder cutting stroke deviation is greater than the preset single-cylinder cutting stroke deviation, the exhaust time will be extended. If the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, multi-cylinder position synchronization linkage control is executed; If the single-cylinder cutting stroke deviation is less than the preset single-cylinder cutting stroke deviation, the multi-cylinder cylinder cutting stroke analysis will continue until the single-cylinder cutting stroke deviation equals the preset single-cylinder cutting stroke deviation, at which point multi-cylinder position synchronization linkage control will be executed.

7. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 6, characterized in that, The specific process of extending the exhaust time is as follows: Send a prompt to the controller to extend the exhaust time at the exhaust port; Simultaneously monitor the single-cylinder cutting stroke deviation in real time; Determine whether the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation; When the single-cylinder cutting stroke deviation is equal to the preset single-cylinder cutting stroke deviation, the extension of the exhaust port exhaust time is stopped, and multi-cylinder position synchronization linkage control is executed. When the single-cylinder cutting stroke deviation is not equal to the preset single-cylinder cutting stroke deviation, a single-cylinder cutting stroke abnormality prompt is sent to the preset personnel.

8. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 7, characterized in that, The execution of multi-cylinder position synchronization linkage control includes: determining multi-cylinder position synchronization error and determining multi-cylinder stroke consistency; The specific process for determining the multi-cylinder position synchronization error is as follows: The time required for the multi-cylinder cylinder to reach the preset cutting position from the start of its movement is statistically analyzed, and this time is expressed as the multi-cylinder position response time. The multi-cylinder position response time is compared with the preset multi-cylinder position response time; If the multi-cylinder position response time is less than the preset multi-cylinder position response time, the corresponding multi-cylinder block will be marked as an early response multi-cylinder block, and the cylinder block exhaust speed will be adjusted. If the multi-cylinder position response time is equal to the preset multi-cylinder position response time, the corresponding multi-cylinder block will be marked as a qualified multi-cylinder block; If the multi-cylinder position response time is greater than the preset multi-cylinder position response time, the corresponding multi-cylinder will be marked as a lagging response multi-cylinder, and a multi-cylinder position response anomaly prompt will be sent to the preset personnel.

9. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 8, characterized in that, The specific process for adjusting the cylinder exhaust speed is as follows: A prompt will be sent to the controller, which will respond in advance and adjust the exhaust speed of multiple cylinders to the preset maximum exhaust speed. If the reacquired multi-cylinder position response time is still less than or greater than the preset multi-cylinder position response time, a multi-cylinder position response anomaly prompt will be sent to the preset personnel. If the reacquired multi-cylinder position response time is equal to the preset multi-cylinder position response time, the corresponding multi-cylinder block will be marked as a qualified response multi-cylinder block; The process for determining the consistency of multi-cylinder stroke is as follows: The cutting stroke distance of all multi-cylinder blocks is statistically analyzed, and its standard deviation is expressed as the multi-cylinder distance synchronization error. Compare the multi-cylinder distance synchronization error with the preset multi-cylinder distance synchronization error; If the multi-cylinder distance synchronization error is less than or equal to the preset multi-cylinder distance synchronization error, the corresponding multi-cylinder block will be marked as a qualified multi-cylinder block; Conversely, the corresponding multiple cylinder block is marked as an abnormal position multiple cylinder block, and a prompt is sent to the preset personnel to adjust the cutting stroke of the abnormal position multiple cylinder block until the single cylinder cutting stroke deviation is equal to the preset single cylinder cutting stroke deviation.

10. The wire harness production management system for a wire placement machine based on multi-cylinder linkage and magnetic sensing feedback as described in claim 9, characterized in that, The specific process for implementing wire harness production management is as follows: Based on the acquired multi-cylinder position synchronization and linkage control results, wire harness production management is executed; Statistical analysis of the number of wire harness cuts and the number of accurate wire harness cuts; The ratio of the number of accurate wire harness cuts to the total number of wire harness cuts is expressed as the wire harness cut accuracy rate. The difference between the maximum and minimum length of the harness is expressed as the harness profile undulation. The arithmetic mean of the absolute values ​​of the distances from each preset sampling point on the edge of the wire harness to the midpoint of the wire harness is expressed as the arithmetic mean deviation of the wire harness profile. If the wire harness cutting accuracy rate is greater than or equal to the preset wire harness cutting accuracy rate, a wire harness management qualified prompt will be sent to the preset personnel; otherwise, a wire harness management abnormality prompt will be sent to the preset personnel.

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