An automated production and stamping method for automobile heater heat exchanger accessories with reinforcement ribs

Abstract

The present invention proposes an automated production and stamping method for automobile heater heat exchanger accessories with reinforcement ribs, which belongs to the field of automobile processing. The method includes the steps of mold debugging, processing parameter setting, sensor installation, processing process execution, processing position control, processing quality control, finished product inspection, and processing parameter optimization. The present invention continuously performs important processing steps such as incision, rib stamping, bending, cutting, and material stripping, that is, multiple steps are completed in a pair of molds, thereby realizing a high degree of integration of the processing flow. Each step can be closely connected, reducing the transportation and repositioning of semi-finished products between steps, and also reducing the time for mold replacement and debugging, shortening the production cycle. Secondly, the present invention realizes the precise positioning of the material strip during the stamping process and ensures the stability of the stamping quality by adding an optical sensor for monitoring the position deviation of the material strip and a piezoresistive flexible sensor for monitoring the pressure distribution of the material strip.

Description

Technical Field

[0001] The present invention relates to the field of automobile processing, in particular to an automated production and stamping method for automobile heater heat exchanger accessories with reinforcing ribs. Background Art

[0002] Car heater heat exchanger with reinforcement accessories such as Figure 1 As shown, traditional stamping processes are typically used. This process involves multiple steps, including first cutting a notch into the strip, stamping out a strip reinforcement, bending the ends of the strip, and finally cutting to form a complete accessory unit. Current processing methods generally use a single-process model, where each process uses different molds and stamping equipment to complete the required processing steps. The conversion between each mold and process is not only time-consuming, but also expensive to manufacture and install multiple sets of molds and equipment. While each process can be processed independently, the accompanying problem is that each process requires repositioning and alignment, resulting in low production efficiency and difficulty in ensuring processing accuracy. This can easily lead to cumulative positioning errors and increase the probability of defective products. Furthermore, existing processing methods lack real-time monitoring systems for key parameters that affect processing quality, such as punching pressure and punching depth. This can cause damage to the mold and the strip, making it difficult to ensure that the quality of stamped parts meets design requirements and effectively optimize the stamping process. This limits improvement and innovation in the production process and hinders data resource collection and quality problem analysis.

[0003] Therefore, there is an urgent need to provide a stamping method that effectively integrates multiple processes, has high-precision positioning functions, and monitors processing quality in real time to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide an automated production and stamping method for automobile heater heat exchanger accessories with reinforcement ribs, so as to solve the above-mentioned problems of the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automated stamping method for producing a car heater heat exchanger with a reinforcing rib accessory comprises the following steps:

[0007] S1. Mould debugging: Carry out preliminary debugging of the mould on the stamping equipment and check the mould clearance and alignment;

[0008] The stamping equipment is provided with a first fixed plate, a pressing plate and a second fixed plate from top to bottom, the first fixed plate is controlled by a driving component to move up and down, the driving component is electrically connected to the control component, the first fixed plate is used to fix the upper mold, and the upper mold includes a cutting insert, a reinforcing rib insert, a bending insert and a cutting insert in sequence according to the processing steps; the pressing plate is movably connected to the first fixed plate, and the pressing plate is provided with corresponding cutting inserts, reinforcing rib inserts, bending inserts and cutting inserts for cutting inserts, reinforcing rib inserts, bending inserts and cutting inserts. The through hole for the bending insert and the cutting insert to pass through; the second fixing plate is used to fix the lower mold, and the lower mold includes a cutting blanking die, a reinforcing rib die, a bending die and a cutting blanking die used in conjunction with the upper mold. A stamping space is formed between the lower mold and the upper mold. The lower mold is provided with a plurality of accommodating cavities and a plurality of limiting assemblies. The spring plunger in the accommodating cavity is used for withdrawing the material. When working normally, the spring plunger is always close to the lower side of the material strip. The limiting assemblies are distributed around the stamping space and are used to limit the material strip from multiple directions.

[0009] A cutting station is formed between the cutting insert and the cutting blanking die, a reinforcing rib station is formed between the reinforcing rib insert and the reinforcing rib concave die, a bending station is formed between the bending insert and the bending concave die, and a cutting station is formed between the cutting insert and the cutting blanking die;

[0010] S2. Processing parameter setting: Preliminarily setting the processing parameters of the stamping equipment and the feeder according to the material properties and process requirements of the strip, the processing parameters including the feeding speed v of the feeder, the punching force F' of the upper die, and the punching depth L';

[0011] S3: Installing sensors: A plurality of optical sensors and piezoresistive flexible sensors electrically connected to the control assembly are installed at each workstation. The optical sensors are used to monitor the position deviation of the material strip at each workstation. The piezoresistive flexible sensors monitor the pressure distribution of the material strip at each workstation by monitoring the change in resistance value.

[0012] S4, processing flow execution: placing the material strip between the lower mold and the pressing plate, starting the feeder to move the material strip to the next process position after the previous process is completed, until all processes are completed;

[0013] S5. Processing position control: The optical sensor and the piezoresistive flexible sensor monitor the position deviation and pressure distribution of the material strip in real time during the entire processing process, and feed the monitoring data back to the control component, which analyzes the data and makes corresponding adjustments;

[0014] S6. Processing quality control: The upper mold is equipped with a load sensor and a displacement sensor electrically connected to the control component to monitor in real time whether the punching force F' and punching depth L' of the upper mold meet the design requirements during each processing. The monitoring data is fed back to the control component, which analyzes the data, determines any discrepancies, and makes corresponding adjustments.

[0015] S7. Finished product inspection: Check the size, shape and surface quality of each accessory to ensure it meets the design standards;

[0016] S8. Processing parameter optimization: The control component adjusts and optimizes the processing parameters according to the processing parameters, monitoring results and adjustment measures of each process, and establishes a continuous improvement mechanism.

[0017] As an optimal technical solution of the present invention, the lower mold also includes a material guide mold and a material discharge mold. The material guide mold is arranged at the input end of the cutting and blanking mold, and is used to guide the material strip conveyed by the feeder to the cutting and blanking mold for cutting processing. The material discharge mold is arranged at the output end of the cutting and blanking mold, and the output end of the material discharge mold is provided with an elastic plate. The material guide mold is provided with a guide groove with a width matching the width of the material strip, and the inner wall of the guide groove fits the material strip. The input end of the material guide mold is provided with a guide angle, and the material discharge mold is a slope groove structure, and the groove wall of the slope groove is used to constrain the horizontal position of the accessory.

[0018] As a preferred technical solution of the present invention, the optical sensor is installed on the lower surface of the first fixed plate, the light beam emitted by the optical sensor passes through the pressing plate to monitor the position of the material strip, the piezoresistive flexible sensor is installed on the spring plunger, and at least two spring plungers are arranged on each workstation.

[0019] As a preferred technical solution of the present invention, the first fixing plate, the second fixing plate, the upper mold, the lower mold and the pressing plate are made of high-strength alloy steel or aluminum alloy material.

[0020] As a preferred technical solution of the present invention, the execution of the process in step S4 includes the following steps:

[0021] S401, cutting process: When the material strip is transferred to the cutting station, the driving assembly controls the first fixed plate to move downward, and drives the pressing plate to press the upper surface of the material strip. The first fixed plate continues to move downward and drives the cutting insert to pass through the through hole of the pressing plate to cut the material strip.

[0022] S402, punching reinforcement rib process: After the incision process is completed, the material strip moves to the reinforcement rib station, and the reinforcement rib insert punches the material strip downward to form raised reinforcement ribs on the lower surface of the material strip;

[0023] S403, Bending process: The material strip is moved to the bending station, the bending die and the limiting assembly limit the position of the material strip, and the bending insert presses downward to bend the two side edges of the material strip into a preset angle, completing the bending process;

[0024] S404, cutting process: under the limiting action of the bending die and the limiting assembly, the cutting insert punches the cut of the material strip to complete the processing of a single accessory;

[0025] S405, material withdrawal: After all processes are completed, the upper mold returns to the initial position, and the material strip is withdrawn under the action of the spring plunger;

[0026] As a preferred technical solution of the present invention, the adjustment measures in step S5 are specifically:

[0027] Position deviation adjustment: When the deviation of any position of the material strip is ≤±0.5mm or less, no adjustment is required and the current material strip position and feeding speed are maintained; when the deviation of any position of the material strip is less than ±0.5mm and less than ±1.0mm, the control component automatically adjusts the output of the feeder to fine-tune the position of the material strip, and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the deviation of any position of the material strip is less than ±1.0mm, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment;

[0028] Pressure distribution adjustment: When the pressure distribution deviation is ≤±5% of the preset value, no adjustment is required, the current operating state is maintained, and production continues; when the pressure distribution deviation is less than or equal to ±10% of the preset value, the control component increases the punching force F' of the upper mold and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the pressure distribution deviation is less than or equal to ±10% of the preset value, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment.

[0029] As a preferred technical solution of the present invention, the design requirements of the punching force F' and the punching depth L' of the upper die in step S6 are specifically as follows:

[0030] F'<F' min Or L'<L' min or k'<k' min , it is judged that the stamping is insufficient, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; F' min ≤F'≤F'max And L' min ≤L'≤L' max And k' min ≤k'≤k' max , it is judged that the stamping is normal, the control component does not respond, and continues to the next stamping work; F'>F' max or L'>L' max or k'>k' max , it is judged as excessive stamping, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; where k' is the ratio of the overall stamping depth L' to the overall stamping force F', F' min and F' max are the minimum and maximum values of the overall punching force design range, L' min and L' max are the minimum and maximum values of the overall stamping depth design range, k' min and k'max are the minimum and maximum values of the ratio design range respectively;

[0031] Among them, the ratio k' is compared with the ratio design range to determine whether the stamping work meets the requirements. When the stamping equipment works normally, the overall stamping force F' and the overall stamping depth L' of the upper die meet the following relationship:

[0032]

[0033] Wherein, γ1, γ2, γ3 are adjustment coefficients, t is the thickness of the strip, and B is the yield strength of the strip.

[0034] As a preferred technical solution of the present invention, step S6 also includes a step of adaptively controlling processing parameters, by setting a graphics acquisition device at each workstation to capture the edge and contour of the material strip in real time, and feeding it back to the control component to calculate and process the actual thickness of the material strip. The control component dynamically adjusts the stamping force F' and stamping depth L' of the upper mold according to the actual thickness size data, material strip characteristics and process requirements.

[0035] As a preferred technical solution of the present invention, step S8 specifically includes the following steps:

[0036] S801. Collect stamping data of each process, including the feed speed v, the stamping force F' and stamping depth L' of the upper die, the thickness and hardness of the strip, monitoring results, and adjustment measures of the control component;

[0037] S802, simulation: using a machine learning algorithm to analyze and simulate the collected stamping data, and establish a prediction model based on the stamping data;

[0038] S803, calculating abnormality probability: predicting the workpiece state during the stamping process using the prediction model and calculating the abnormality probability of the accessory, the workpiece state including the shape, size, and processing quality of the strip;

[0039] S804, processing parameter optimization: the control component automatically adjusts the processing parameters according to the abnormal probability of the accessory.

[0040] As a preferred technical solution of the present invention, the feeder completes the conveyance of the material belt through a driving wheel and a driven wheel provided at the output port, the material belt is placed between the driving wheel and the driven wheel, and the driving wheel and the driven wheel are both provided with Hall sensors electrically connected to the control component, for monitoring the rotation speed v1 of the driving wheel and the rotation speed v2 of the driven wheel respectively;

[0041] When |v1-v2|≤v3, it indicates that the feeding is normal and the control component does not respond;

[0042] When v1-v2>v3, it indicates that the material strip is stuck during the stamping process, the control component responds by stopping the machine and prompting the operator to replace the spring plunger;

[0043] When v1-v2<-v3, it means that the material strip slips during the stamping process, and the control component responds by stopping the machine and notifying the operator that the material strip has been transferred to the end and that a new material strip should be replaced in time;

[0044] Among them, v3 is the speed deviation threshold, the unit is rad / s, and it satisfies the following relationship:

[0045]

[0046] Where r is the radius of the driving wheel, b is the acceptable length error of a single accessory, in mm, and s is the moving beat of the material strip, in s.

[0047] The beneficial effects of the present invention are:

[0048] (1) The present invention combines important processing steps such as cutting, punching reinforcement, bending, cutting and stripping into one mold on the same stamping equipment, thereby realizing continuous operation of the processing flow, that is, completing multiple processes in one mold, and realizing a high degree of integration of the processing flow. Compared with the traditional single-process processing technology, the present invention can stamp individual parts separately, greatly improving production efficiency and shortening the production cycle; during the processing, each process can be closely connected, and there is no need to transfer and reposition the semi-finished products between processes, which not only reduces processing errors, but also reduces the time cost of mold replacement and debugging.

[0049] (2) By adding optical sensors and piezoresistive flexible sensors, the position deviation and pressure distribution deviation of the material strip in each process are continuously monitored, which helps to detect and correct deviations in a timely manner, avoid processing defects caused by position errors or excessive flatness of the material strip, and achieve accurate positioning of the material strip during the stamping process and ensure the stability of the stamping quality.

[0050] (3) The present invention installs a load sensor and a displacement sensor on the upper mold to monitor the working status of the mold in real time. By analyzing the collected data, the control component dynamically adjusts the processing parameters, such as the punching force F' and the punching depth L' of the upper mold, to optimize the processing process, ensure that the working status of the mold is always in the best, ensure the accuracy and consistency of the punching process, and achieve high-precision monitoring; in addition, the data collected by the load sensor and the displacement sensor can also be used to predict the wear and maintenance needs of the mold. Before problems occur with the mold, timely maintenance and care can be carried out based on the data prediction, thereby effectively reducing unexpected downtime.

[0051] (4) A joint control relationship between punching force and punching depth is established to obtain an adaptive control range, which can adapt to different strip materials and thicknesses, as well as different processing requirements. It has good versatility and flexibility, can ensure the stamping quality under different conditions, and avoid defects caused by parameter mismatch.

[0052] (5) During the stamping process, the moving accuracy of the material belt is very important. If the material belt fails to be transmitted at a predetermined precise speed, it may cause deviation in the position of the stamping die, affecting the processing accuracy of the workpiece. The present invention monitors the speed difference between the driving wheel and the driven wheel of the feeder to detect the state of the material belt in real time, ensuring that each workpiece is accurately aligned with the die, avoiding accuracy problems caused by speed differences. Once the speed difference exceeds the set threshold, the control system can immediately identify problems with the material belt, such as jamming or slipping, and respond quickly to avoid serious faults and ensure smooth production processes. Secondly, long-term data accumulation and analysis of the changing trend of the speed difference can be used to accurately predict the aging cycle of the spring plunger and the best time to replace the material belt, arrange equipment maintenance and replacement of the material belt in advance, and improve the overall operational efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a schematic diagram of a car heater heat exchanger with a reinforcing rib accessory according to the present invention;

[0054] Figure 2 is a schematic diagram of the stamping equipment of the present invention;

[0055] Figure 3 Schematic diagram of the upper mold of the present invention;

[0056] Figure 4 Schematic diagram of the lower mold of the present invention;

[0057] Figure 5 A flowchart of the processing flow of the present invention;

[0058] Figure 6 This is a flow chart of an automated production and stamping method for an automobile heater heat exchanger with a reinforcing rib accessory according to the present invention;

[0059] Figure 7 is a graph showing the overall punching force F' and the overall punching depth L' according to an embodiment of the present invention;

[0060] In the figure, 1-stamping equipment, 11-first fixed plate, 12-pressing plate, 13-second fixed plate, 14-upper mold, 141-cutting insert, 142-rib insert, 143-bending insert, 144-cutting insert, 15-lower mold, 151-cutting blanking die, 152-rib concave die, 153-bending concave die, 154-cutting blanking die, 155-discharging die, 156-elastic plate, 157-material guide die, 158-spring plunger, 16-stamping space, 2-material belt, 3-accessories, 4-feeder, 41-driving wheel, 42-driven wheel. DETAILED DESCRIPTION

[0061] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments given here are only used to illustrate and explain the present invention and cannot be used to limit the present invention.

[0062] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also have other implementations and variations thereof. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0063] like Figures 1 to 6 As shown, an automated production and stamping method for a car heater heat exchanger with a reinforcement rib accessory 3 includes the following steps:

[0064] S1. Die debugging: Perform preliminary debugging on the die on the stamping equipment 1 and check the die gap and alignment;

[0065] The stamping equipment 1 is provided with a first fixed plate 11, a pressing plate 12 and a second fixed plate 13 from top to bottom. The first fixed plate 11 is controlled by a driving component (not shown) to move up and down. The driving component is electrically connected to the control component (not shown). The first fixed plate 11 is used to fix the upper mold 14. The upper mold 14 includes a cutting insert 141, a reinforcing rib insert 142, a bending insert 143 and a cutting insert 144 in accordance with the processing steps; the pressing plate 12 is movably connected to the first fixed plate 11, and the pressing plate 12 is provided with corresponding to the cutting insert 141, the reinforcing rib insert 142, the bending insert 143 and the cutting insert 144 and for the cutting insert 141, the reinforcing rib insert The second fixing plate 13 is used to fix the lower mold 15, and the lower mold 15 includes a cutting blanking die 151, a reinforcing rib die 152, a bending die 153 and a cutting blanking die 154 used in conjunction with the upper mold 14. A stamping space 16 is formed between the lower mold 15 and the upper mold 14. The lower mold 15 is provided with a plurality of accommodating cavities and a plurality of limiting assemblies (not shown in the figure). A spring plunger 158 for material withdrawal is provided in the accommodating cavity. During normal operation, the spring plunger 158 is always in close contact with the lower side of the material strip 2. The limiting assemblies are distributed around the stamping space 16 and are used to limit the material strip 2 from multiple directions.

[0066] A cutting station is formed between the cutting insert 141 and the cutting blanking die 151, a reinforcing station is formed between the reinforcing rib insert 142 and the reinforcing rib concave die 152, a bending station is formed between the bending insert 143 and the bending concave die 153, and a cutting station is formed between the cutting insert 144 and the cutting blanking die 154;

[0067] During the stamping process, the upper die 14 passes through the through-hole in the blank holder 12 to stamp the material strip 2. The through-hole serves as a positioning hole for the upper die 14, ensuring that the upper die 14 is accurately positioned during the stamping process without positional deviation. Furthermore, the through-hole enhances the rigidity of the upper die 14, helping to extend its service life.

[0068] The spring plunger 158 is composed of a plunger body and a spring. Its working principle is mainly based on the compression and release of the spring. A spring plunger 158 is installed at each workstation to provide uniform support force for the material strip 2. During the stamping process, the material strip 2 is always close to the lower side of the material strip 2, and with the support of the spring plunger 158, it is not easy to deform or bend, thereby maintaining the flatness of the material strip 2. When the upper mold 14 descends and starts the stamping operation, the stamping force will gradually increase and exceed the elastic force of the spring plunger 158. At this time, the spring plunger 158 will be pressed into its accommodating cavity, causing the spring to be compressed; after the stamping is completed, the upper mold 14 is reset, and the stamping pressure on the material strip 2 is released. As the upper mold 14 is reset, the spring plunger 158 begins to return to its original position due to the rebound force of its spring, and releases the energy stored when it is compressed, pushing the material strip 2 upward and gently lifting it up, so that the material strip 2 is separated from the working surface of the lower mold 15, thereby completing the material stripping. The material stripping is not a single action, but is coordinated with multiple stamping actions of the mold. While the material strip 2 is being lifted, the material strip 2 will continue to pass through various processes.

[0069] S2. Processing Parameter Setting: In this embodiment, a 3.0 mm thick aluminum strip 2 is processed into a 141 mm long automotive heater heat exchanger with reinforcement rib accessory 3. Based on the material properties of the strip 2 and the process requirements, the processing parameters of the stamping equipment 1 and the feeder 44 are preliminarily set. The processing parameters include the feed speed v of the feeder 4, the punching force F' of the upper die 14, and the punching depth L'.

[0070] S3: Install sensors: Several optical sensors (not shown) and piezoresistive flexible sensors (not shown) electrically connected to the control assembly are installed at each station. The optical sensors are used to monitor the position deviation of the strip 2 at each station, and the piezoresistive flexible sensors monitor the pressure distribution of the strip 2 at each station by monitoring the change in resistance value.

[0071] Optical sensors utilize the principles of light reflection and refraction. When the material strip 2 passes through the optical sensor's monitoring area, it partially blocks the light beam or changes its reflection path. The optical sensor quickly captures these changes and converts them into electrical signals for subsequent processing and analysis. By monitoring the position and intensity changes of the light beam, the optical sensor can accurately determine the positional deviation of the material strip 2 at each workstation, ensuring the accuracy and stability of the processing process. Piezoresistive flexible sensors utilize the piezoresistive effect. When a piezoresistive flexible sensor is subjected to pressure, its resistance changes. By monitoring this resistance change, the pressure distribution is measured.

[0072] In this embodiment, a piezoresistive flexible sensor is mounted on the spring plunger 158 to monitor the pressure exerted on the spring plunger 158 in real time. By analyzing whether the force exerted on each spring plunger 158 is uniform, the flatness of the material strip 2 can be determined. Under normal circumstances, the spring plunger 158 should be evenly subjected to the pressure from the material strip 2. If any portion of the material strip 2 is uneven or warped, the force exerted on the spring plunger 158 at that location will be abnormal, manifesting as excessive or insufficient pressure. Excessive pressure on some spring plungers 158 may indicate that the material strip 2 is too high or warped in that portion, making it impossible to evenly bear the load. Monitoring by the sensor allows for real-time identification of such unevenness, allowing adjustments to the production process or the provision of an alarm. Low pressure on some spring plungers 158 may indicate that the material strip 2 is loose or concave in those areas, resulting in insufficient support for the spring plunger 158.

[0073] The sensor not only monitors the flatness of the strip 2 in real time, but also monitors the working status of the spring plunger 158. As the spring ages, it may age or fatigue, resulting in a decrease in its elasticity. This failure of the spring plunger to effectively lift the strip 2 from the lower die may result in incomplete material removal or jamming. Pressure changes detected by the sensor can promptly detect this problem. If the sensor detects that the pressure on certain spring plungers 158 is low for a long period of time, this may be due to the spring losing its elasticity, resulting in it being unable to effectively provide sufficient support. In this case, the control component will signal an incomplete material removal fault, alerting the operator to check whether the spring needs to be replaced or adjusted.

[0074] By combining real-time data from piezoresistive flexible sensors, comprehensive fault diagnosis and alarms can be achieved. When the pressure of multiple spring plungers 158 is low or uneven, the control system can analyze the potential fault and trigger corresponding alarms or automatic adjustments. If the pressure of multiple spring plungers 158 is low, it may be due to overall spring aging, resulting in an inability to effectively support the strip 2. If the pressure of some spring plungers 158 is excessive, it may be due to improper mold design, excessive thickness of the strip 2, or improper process parameter settings. Through real-time data monitoring, the system can make dynamic adjustments during the production process, improving production efficiency and product quality.

[0075] S4, processing flow execution: the material strip 2 is placed between the lower mold 15 and the pressing plate 12, and the feeder 4 is started to move the material strip 2 to the next process position after the previous process is completed, until all processes are completed;

[0076] S5. Processing position control: Optical sensors and piezoresistive flexible sensors monitor the position deviation and pressure distribution of the material strip 2 in real time throughout the entire processing process, and feed the monitoring data back to the control component, which analyzes the data and makes corresponding adjustments;

[0077] S6. Processing quality control: The upper mold 14 is equipped with a load sensor and a displacement sensor electrically connected to the control component to monitor in real time whether the punching force F' and punching depth L' of the upper mold 14 meet the design requirements during each processing. The monitoring data is fed back to the control component, which analyzes the data, determines any discrepancies, and makes corresponding adjustments.

[0078] S7, Finished product inspection: Check the size, shape and surface quality of each accessory 3 to ensure it meets the design standards;

[0079] S8. Processing parameter optimization: The control component adjusts and optimizes the processing parameters according to the processing parameters, monitoring results and adjustment measures of each process, and builds a mechanism for continuous improvement.

[0080] As a preferred embodiment of the present invention, the lower mold 15 also includes a guide mold 157 and a discharge mold 155. The guide mold 157 is arranged at the input end of the incision blanking mold 151, and is used to guide the material strip 2 conveyed by the feeder 4 to the incision blanking mold 151 for incision processing. The discharge mold 155 is arranged at the output end of the cutting blanking mold 154. The output end of the discharge mold 155 is provided with an elastic plate 156. The guide mold 157 is provided with a guide groove whose width matches the width of the material strip 2. The inner wall of the guide groove fits the material strip 2. The input end of the guide mold 157 is provided with a guide angle. The discharge mold 155 is a slope groove structure, and the groove wall of the slope groove is used to constrain the horizontal position of the accessory 3.

[0081] The elastic plate 156 at the output end of the discharge die 155 cushions the output of the accessory 3, providing a certain degree of elastic support to ensure that the accessory 3 lands smoothly, avoiding damage, and allowing the accessory 3 to slide smoothly into the collection basket. The guide groove ensures that the strip 2 enters the die precisely during stamping, maintaining the consistent position of the strip 2 during the stamping process. The inner wall of the guide groove conforms to the strip 2, and its width matches the width of the strip 2, effectively guiding the strip 2 along the predetermined path. The guide angle at the input end of the guide die 157 helps correct any deviation of the strip 2 during transport, allowing for correction if the strip 2 deviates, ensuring that the strip 2 remains in the correct position throughout the stamping process. This design not only enables automatic feeding but also ensures that the strip 2 is flat and free of twisting. The synergistic effect of the guide groove and the guide angle significantly reduces unnecessary impact and wear on the die by the strip 2, extending the die's service life. Furthermore, precise guidance and positioning reduce the need for manual adjustment of the strip 2, reducing labor costs and improving the automation and production efficiency of the production line. The design of the slope groove helps to guide the accessories 3 to slide out smoothly, reducing jamming and blockage. The slope groove ensures that the accessories 3 maintain the correct direction and position during the discharging process, so that the accessories 3 can be discharged in an orderly manner and reduce the scattering and confusion of the accessories 3.

[0082] As a preferred embodiment of the present invention, the optical sensor is installed on the lower surface of the first fixed plate 11, and the light beam emitted by the optical sensor passes through the pressing plate 12 to monitor the position of the material strip 2. The piezoresistive flexible sensor is installed on the spring plunger 158, and at least two spring plungers 158 are arranged on each workstation.

[0083] The optical sensor in this embodiment uses a laser as a light source, precisely projecting a beam of light across the processing area. The monitoring frequency of the optical sensor is 10 Hz, and it is equipped with a high-speed camera to detect and record any changes in the beam in real time. The optical sensor is positioned on the lower surface of the first fixing plate 11, adjacent to the lower mold 15. This ensures that the beam emitted by the optical sensor can penetrate the press plate 12 unimpeded, vertically or nearly vertically, through the through-holes, directly onto the surface of the material strip 2, accurately monitoring its position. During processing, the laser beam is precisely focused at a predetermined location on the workpiece, and the system continuously tracks and monitors the real-time position of the beam. If the beam shifts due to material strip 2 movement, obstruction, or other reasons, the optical sensor immediately detects this change and rapidly feeds the relevant data back to the control unit. This control unit, which incorporates an advanced programmable logic controller (PLC), processes and analyzes the data from the optical sensor. Based on this feedback, the control unit automatically and accurately adjusts the position of the material strip 2 to ensure it remains in the correct processing position. On the other hand, the piezoresistive flexible sensor is installed on the spring plunger 158, and its main task is to monitor and receive the pressure distribution from the lower surface of the material strip 2. By analyzing these pressure data, the flatness of the material strip 2 can be effectively evaluated.

[0084] As a preferred embodiment of the present invention, the first fixing plate 11, the second fixing plate 13, the upper mold 14, the lower mold 15 and the pressing plate 12 are made of high-strength alloy steel or aluminum alloy material.

[0085] In the design of the stamping equipment 1, the first fixed plate 11 and the second fixed plate 13 constitute the main support structure of the mold, and their main responsibility is to bear the pressure and load generated by the upper mold 14, the lower mold 15 and the pressure plate 12 and other components during the stamping process. In order to ensure the stability and strength of the entire mold structure, the first fixed plate 11 and the second fixed plate 13 must be designed to be strong enough to withstand the various forces and stresses generated during the stamping process, and to ensure that the upper mold 14 and the lower mold 15 will not be deformed or damaged during operation. The pressure plate 12 is located below the upper mold 14, and is in direct contact with the material strip 2 and applies pressure to fix the material strip 2 to prevent it from moving or shaking during the processing. Therefore, the pressure plate 12 needs to have sufficient strength to withstand the pressure and load during the processing. The upper mold 14 and the lower mold 15 are key components that directly bear high pressure and impact force during the processing. They need to have good strength and rigidity to ensure that they will not be damaged under high pressure and impact loads. To meet the requirements for strength and stability, the first and second fixing plates 11, 13, upper and lower molds 14, 15, and the press plate 12 are typically manufactured from high-performance materials such as high-strength alloy steel or aluminum alloy. These materials not only offer excellent strength and rigidity, capable of withstanding high pressure and impact, but also possess excellent wear and corrosion resistance, helping to extend the mold's service life and maintain its long-term precision and performance, reducing the frequency of maintenance and replacement.

[0086] As a preferred embodiment of the present invention, the execution of the process in step S4 includes the following steps:

[0087] S401, cutting process: When the strip 2 is transferred to the cutting station, the driving assembly controls the first fixed plate 11 to move downward, and drives the pressing plate 12 to press the upper surface of the strip 2. The first fixed plate 11 continues to move downward and drives the cutting insert 141 to pass through the through hole of the pressing plate 12 to cut the strip 2;

[0088] S402, Stamping Rib Process: After the incision process is completed, the strip 2 moves to the rib station, and the rib insert 142 punches the strip 2 downward to form raised ribs on the lower surface of the strip 2;

[0089] S403, Bending process: The strip 2 is moved to the bending station, the bending die 153 and the limit assembly limit the position of the strip 2, and the bending insert 143 presses downward to bend the two side edges of the strip 2 into a preset angle, completing the bending process;

[0090] S404, cutting process: under the limiting action of the bending die 153 and the limiting assembly, the cutting insert 144 punches the cut of the strip 2 to complete the processing of the single accessory 3;

[0091] S405, material withdrawal: After all processes are completed, the upper mold 14 returns to the initial position, and the material strip 2 is withdrawn under the action of the spring plunger 158;

[0092] The stamping operation principle of the stamping machine 1 of the present invention is as follows: the drive assembly, under the command of the control assembly, controls the upward and downward movement of the first fixed plate 11, ensuring that the upper die 14 accurately mates with the lower die 15. As the first fixed plate 11 descends, the functional components of the upper die 14—the notching insert 141, the rib insert 142, the bending insert 143, and the cutting insert 144—closely mate with the corresponding modules of the lower die 15: the notching die 151, the rib die 152, the bending die 153, and the cutting die 154. Within the stamping space 16, the material strip 2 is restrained in multiple directions by the retaining assembly, ensuring the stability and accuracy of the stamping process. As the upper die 14 continues to descend, the material strip 2 undergoes the corresponding stamping action at each station, such as notching, rib forming, bending, and cutting. A spring plunger 158 facilitates material removal after stamping, ensuring that the material strip 2 can be smoothly removed from the die. When a complete stamping cycle is completed, the drive assembly will start again, driving the first fixed plate 11 to rise, separating the upper die 14 from the lower die 15, and preparing for the next stamping cycle. Stamping equipment 1 is equipped with a variety of die inserts and can complete various stamping processes such as incision, rib forming, bending and cutting, realizing multifunctional integration. By replacing different die inserts, the equipment can easily adapt to the production needs of different products and has high flexibility.

[0093] As a preferred embodiment of the present invention, the adjustment measures in step S5 are specifically:

[0094] Position deviation adjustment: When the deviation of any position of the strip 2 is ≤±0.5mm or less, no adjustment is required and the current position of the strip 2 and feeding speed are maintained; when the deviation of any position of the strip 2 is less than ±0.5mm and less than ±1.0mm, the control component automatically adjusts the output of the feeder 4 to fine-tune the position of the strip 2 and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the deviation of any position of the strip 2 is less than ±1.0mm, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment;

[0095] Pressure distribution adjustment: When the pressure distribution deviation is ≤±5% of the preset value, no adjustment is required, the current operating state is maintained, and production continues; when the pressure distribution deviation is less than or equal to ±10% of the preset value, the control component increases the punching force F' of the upper mold 14 and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the pressure distribution deviation is less than or equal to ±10% of the preset value, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment.

[0096] As a preferred embodiment of the present invention, the design requirements of the punching force F' and the punching depth L' of the upper die 14 in step S6 are specifically as follows:

[0097] F'<F' min Or L'<L' min or k'<k' min , it is judged that the stamping is insufficient, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; F' min ≤F'≤F' max And L' min ≤L'≤L' max And k' min ≤k'≤k' max , it is judged that the stamping is normal, the control component does not respond, and continues to the next stamping work; F'>F' max or L'>L' max or k'>k' max , it is judged as excessive stamping, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; where k' is the ratio of the overall stamping depth L' to the overall stamping force F', F' min and F' max are the minimum and maximum values of the overall punching force design range, L' min and L' max are the minimum and maximum values of the overall stamping depth design range, k' min and k'max are the minimum and maximum values of the ratio design range respectively;

[0098] The ratio k' is compared with the ratio design range to determine whether the stamping work meets the requirements. When the stamping equipment 1 works normally, the overall stamping force F' and the overall stamping depth L' of the upper die 14 satisfy the following relationship:

[0099]

[0100] Wherein, γ1, γ2, γ3 are adjustment coefficients, t is the thickness of the strip 2, and B is the yield strength of the strip 2.

[0101] like Figure 7 As shown, in this embodiment, an aluminum strip 2 with a thickness of 1.0 mm and a yield strength B of 200 MPa is processed into a 141 mm long automotive heater heat exchanger with reinforcement rib accessory 3. Based on the material properties of the strip 2 and the process requirements, the feed speed v of the feeder 4 is initially set to 4 m / s. The overall punching force F' and the overall punching depth L' of the upper die 14 are monitored in real time by the first load sensor and the first displacement sensor. The following relationship can be obtained between the two:

[0102]

[0103] In the formula, the adjustment coefficients γ1, γ2, and γ3 are 2.45, 7.87×10 -9 , 19.2;

[0104] According to the process requirements, when processing an aluminum strip 2 with a thickness of 1.0 mm and a yield strength B of 200 MPa, in order to ensure processing quality, safety and consistency, the overall punching force design range is 195 kN to 196.5 kN, the overall punching depth design range is 3.51 mm to 3.68 mm, and the ratio design range is 0.01800 to 0.01873. That is, the process requirements are as follows:

[0105] 195kN≤F'≤196.5kN

[0106] 3.51mm≤L'≤3.68mm

[0107] 0.01800≤k≤0.01873

[0108] By monitoring and controlling the ratio k, it is possible to ensure that the relationship between force and displacement during the stamping process remains within the expected range, thereby ensuring the quality and consistency of stamped parts. This approach helps prevent over-stamping or under-stamping, ensuring the stability and reliability of the stamping process.

[0109] As a preferred embodiment of the present invention, step S6 also includes a step of adaptively controlling processing parameters, by setting a graphics acquisition device at each workstation to capture the edge and contour of the material strip 2 in real time, and feeding it back to the control component to calculate and process the actual thickness size of the material strip 2. The control component dynamically adjusts the stamping force F' and stamping depth L' of the upper mold 14 according to the actual thickness size data, the characteristics of the material strip 2 and the process requirements.

[0110] The graphics acquisition device can use a high-resolution camera or a dedicated image sensor to continuously capture images of the material strip 2 for complex image processing and analysis, identify the edges and contour shapes of the edges of the material strip 2, and then infer the actual thickness of the material strip 2. The control component dynamically calculates the optimal upper mold 14 punching force F' and punching depth L' through the algorithm model to ensure the accuracy and stability of the stamping process, and makes precise adjustments based on the actual thickness and characteristics of the material strip 2, significantly improving the dimensional accuracy and shape consistency of the stamped accessories 3, ensuring that each stamped accessory 3 meets or exceeds the preset quality standards, and improving the market competitiveness and customer satisfaction of the product.

[0111] As a preferred embodiment of the present invention, step S8 specifically includes the following steps:

[0112] S801. Collect stamping data of each process, including the feed speed v, the stamping force F' and the stamping depth L' of the upper die 14, the thickness and hardness of the strip 2, monitoring results, and adjustment measures of the control components;

[0113] S802, simulation: Analyze and simulate the collected stamping data using machine learning algorithms to establish a prediction model based on the stamping data;

[0114] S803, calculating abnormality probability: using the prediction model to predict the workpiece state during the stamping process and calculate the abnormality probability of the component 3, the workpiece state including the shape, size and processing quality of the strip 2;

[0115] S804, processing parameter optimization: the control component automatically adjusts the processing parameters according to the abnormal probability of the accessory 3.

[0116] As a preferred embodiment of the present invention, the feeder 4 completes the conveyance of the material belt 2 through the driving wheel 41 and the driven wheel 42 provided at the output port. The material belt 2 is placed between the driving wheel 41 and the driven wheel 42. The driving wheel 41 and the driven wheel 42 are both provided with Hall sensors (not shown in the figure) electrically connected to the control component, which are used to monitor the speed v1 of the driving wheel 41 and the speed v2 of the driven wheel 42 respectively;

[0117] When |v1-v2|≤v3, it means that the feeding is normal and the control component does not respond;

[0118] When v1-v2>v3, it indicates that the material strip 2 is stuck during the stamping process, and the control component responds by stopping the machine and prompting the operator to replace the spring plunger 158;

[0119] When v1-v2<-v3, the material strip 2 slips during the stamping process, the control component responds by stopping the machine, and prompts the operator that the material strip 2 has been transferred to the end, and replaces the new material strip 2 in time;

[0120] Among them, v3 is the speed deviation threshold, the unit is rad / s, and it satisfies the following relationship:

[0121]

[0122] Where r is the radius of the driving wheel, b is the acceptable length error of a single accessory, in mm, and s is the moving beat of the material strip, in s.

[0123] In one embodiment, the radius of the driving wheel 41 is 30 mm, the length of a single component is 141 mm, and the moving cycle of the material strip 2 is 3 seconds per component length. Therefore, under normal operating conditions, the speed of the driving wheel 41 should be 1.57 rad / s. Since the acceptable length error of a single component in the design requirement is 3‰, or 3 mm, the speed deviation threshold v3 is therefore 0.03 rad / s.

[0124] The feeder 4 drives the driving wheel 41 to rotate at a preset speed. When the driving wheel 41 rotates, it drives the material belt 2 to move forward. Since the driving wheel 41 and the driven wheel 42 are always in close contact with the material belt 2, the material belt 2 will also drive the driven wheel 42 to rotate when it moves. In this state, the friction force of the driving wheel 41 and the driven wheel 42 on the material belt 2 remains unchanged, and the speeds of the two are the same.

[0125] When v1-v2>v3, it indicates that the material strip 2 is stuck during the stamping process, and the spring plunger 158 needs to be replaced. This is because the function of the spring plunger 158 is to provide a smooth and uniform material withdrawal support force for the material strip 2 so that it can smoothly leave the stamping die. However, when the spring plunger 158 ages and cannot provide sufficient material withdrawal support force, the material strip 2 will be stuck and cannot be smoothly transmitted. In this case, the driving wheel 41 continues to rotate, while the driven wheel 42 rotates slowly because the material strip cannot move normally, resulting in the speed v2 of the driven wheel 42 being less than the speed v1 of the driving wheel 41. This speed difference is greater than a set threshold value v3, which will cause the upper die to repeatedly stamp different positions of an accessory multiple times during the stamping process, seriously affecting the quality of the product.

[0126] When v1-v2<-v3, it means that the material strip 2 slips during the stamping process and a new material strip 2 needs to be replaced. This is because when the material strip 2 is rolled to the end, the turning radius of the end of the roll is too small, and a large tension will accumulate inside the material strip 2, causing the thrust on the material strip 2 to increase. When this thrust exceeds the friction between the driving wheel and the driven wheel, the material strip slips, causing the speed v2 of the driven wheel 42 to exceed the speed v1 of the driving wheel 41. This speed difference is greater than a set threshold value v3, which will cause the material strip to move forward a long distance in each beat during the stamping process, making it impossible to align each processing accessory with the mold of each process.

[0127] It should be understood that the above embodiments are one or more embodiments of the present invention, and there are many other embodiments and variations thereof based on the present invention; the variations and modifications made by ordinary technicians in this industry through the present invention without making groundbreaking innovations all fall within the scope of protection of the present invention.

Claims

1. An automated stamping method for the production of automotive heater heat exchanger accessories with reinforcement ribs, characterized in that: The following steps are involved: S1. Mould debugging: Carry out preliminary debugging of the mould on the stamping equipment and check the mould clearance and alignment; The stamping equipment is provided with a first fixed plate, a pressing plate and a second fixed plate from top to bottom, the first fixed plate is controlled by a driving component to move up and down, the driving component is electrically connected to the control component, the first fixed plate is used to fix the upper mold, and the upper mold includes a cutting insert, a reinforcing rib insert, a bending insert and a cutting insert in sequence according to the processing steps; the pressing plate is movably connected to the first fixed plate, and the pressing plate is provided with corresponding cutting inserts, reinforcing rib inserts, bending inserts and cutting inserts for cutting inserts, reinforcing rib inserts, bending inserts and cutting inserts. The through hole for the bending insert and the cutting insert to pass through; the second fixing plate is used to fix the lower mold, and the lower mold includes a cutting blanking die, a reinforcing rib die, a bending die and a cutting blanking die used in conjunction with the upper mold. A stamping space is formed between the lower mold and the upper mold. The lower mold is provided with a plurality of accommodating cavities and a plurality of limiting assemblies. The spring plunger in the accommodating cavity is used for withdrawing the material. When working normally, the spring plunger is always close to the lower side of the material strip. The limiting assemblies are distributed around the stamping space and are used to limit the material strip from multiple directions. A cutting station is formed between the cutting insert and the cutting blanking die, a reinforcing rib station is formed between the reinforcing rib insert and the reinforcing rib concave die, a bending station is formed between the bending insert and the bending concave die, and a cutting station is formed between the cutting insert and the cutting blanking die; S2. Processing parameter setting: Preliminarily setting the processing parameters of the stamping equipment and the feeder according to the material properties and process requirements of the strip, the processing parameters including the feeding speed v of the feeder, the punching force F' of the upper die, and the punching depth L'; S3: Installing sensors: A plurality of optical sensors and piezoresistive flexible sensors electrically connected to the control assembly are installed at each workstation. The optical sensors are used to monitor the position deviation of the material strip at each workstation. The piezoresistive flexible sensors monitor the pressure distribution of the material strip at each workstation by monitoring the change in resistance value. S4, processing flow execution: placing the material strip between the lower mold and the pressing plate, starting the feeder to move the material strip to the next process position after the previous process is completed, until all processes are completed; S5. Processing position control: The optical sensor and the piezoresistive flexible sensor monitor the position deviation and pressure distribution of the material strip in real time during the entire processing process, and feed the monitoring data back to the control component, which analyzes the data and makes corresponding adjustments; S6. Processing quality control: The upper mold is equipped with a load sensor and a displacement sensor electrically connected to the control component to monitor in real time whether the punching force F' and punching depth L' of the upper mold meet the design requirements during each processing. The monitoring data is fed back to the control component, which analyzes the data, determines any discrepancies, and makes corresponding adjustments. S7. Finished product inspection: Check the size, shape and surface quality of each accessory to ensure it meets the design standards; S8. Processing parameter optimization: The control component adjusts and optimizes the processing parameters according to the processing parameters, monitoring results and adjustment measures of each process, and establishes a continuous improvement mechanism.

2. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The lower mold also includes a guide mold and a discharge mold. The guide mold is arranged at the input end of the cutting and blanking mold, and is used to guide the material strip conveyed by the feeder to the cutting and blanking mold for cutting processing. The discharge mold is arranged at the output end of the cutting and blanking mold. The output end of the discharge mold is provided with an elastic plate. The guide mold is provided with a guide groove with a width matching the width of the material strip. The inner wall of the guide groove fits the material strip. The input end of the guide mold is provided with a guide angle. The discharge mold is a slope groove structure, and the groove wall of the slope groove is used to constrain the horizontal position of the accessory.

3. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The optical sensor is mounted on the lower surface of the first fixed plate. The light beam emitted by the optical sensor passes through the pressing plate to monitor the position of the material strip. The piezoresistive flexible sensor is mounted on the spring plunger, and at least two spring plungers are arranged on each workstation.

4. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The first fixing plate, the second fixing plate, the upper mold, the lower mold and the pressing plate are made of high-strength alloy steel or aluminum alloy material.

5. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The execution of the process in step S4 includes the following steps: S401, cutting process: When the material strip is transferred to the cutting station, the driving assembly controls the first fixed plate to move downward, and drives the pressing plate to press the upper surface of the material strip. The first fixed plate continues to move downward and drives the cutting insert to pass through the through hole of the pressing plate to cut the material strip. S402, punching reinforcement rib process: After the incision process is completed, the material strip moves to the reinforcement rib station, and the reinforcement rib insert punches the material strip downward to form raised reinforcement ribs on the lower surface of the material strip; S403, Bending process: The material strip is moved to the bending station, the bending die and the limiting assembly limit the position of the material strip, and the bending insert presses downward to bend the two side edges of the material strip into a preset angle, completing the bending process; S404, cutting process: under the limiting action of the bending die and the limiting assembly, the cutting insert punches the cut of the material strip to complete the processing of a single accessory; S405, material withdrawal: After all processes are completed, the upper mold returns to the initial position, and the material strip is withdrawn under the action of the spring plunger.

6. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The adjustment measures in step S5 are specifically: Position deviation adjustment: When the deviation of any position of the material strip is ≤±0.5mm or less, no adjustment is required and the current material strip position and feeding speed are maintained; when the deviation of any position of the material strip is less than ±0.5mm and less than ±1.0mm, the control component automatically adjusts the output of the feeder to fine-tune the position of the material strip, and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the deviation of any position of the material strip is less than ±1.0mm, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment; Pressure distribution adjustment: When the pressure distribution deviation is ≤±5% of the preset value, no adjustment is required, the current operating state is maintained, and production continues; when the pressure distribution deviation is less than or equal to ±10% of the preset value, the control component increases the punching force F' of the upper mold and issues a position deviation alarm to prompt the operator to conduct on-site confirmation; when the pressure distribution deviation is less than or equal to ±10% of the preset value, processing is stopped and a serious deviation alarm is issued to prompt the operator to conduct a thorough inspection and manual adjustment.

7. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The design requirements for the punching force F' and punching depth L' of the upper die in step S6 are specifically as follows: F'<F' min Or L'<L' min or k'<k' min , it is judged that the stamping is insufficient, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; F' min ≤F'≤F' max And L' min ≤L'≤L' max And k' min ≤k'≤k' max , it is judged that the stamping is normal, the control component does not respond, and continues to the next stamping work; F'>F' max or L'>L' max or k'>k' max , it is judged as excessive stamping, the control component stops responding and sends an alarm signal to notify the operator to make corresponding adjustment measures; where k' is the ratio of the overall stamping depth L' to the overall stamping force F', F' min and F' max are the minimum and maximum values of the overall punching force design range, L' min and L' max are the minimum and maximum values of the overall stamping depth design range, k' min and k' max are the minimum and maximum values of the ratio design range respectively; Among them, the ratio k' is compared with the ratio design range to determine whether the stamping work meets the requirements. When the stamping equipment works normally, the overall stamping force F' and the overall stamping depth L' of the upper die meet the following relationship: Wherein, γ1, γ2, γ3 are adjustment coefficients, t is the thickness of the strip, and B is the yield strength of the strip.

8. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: Step S6 also includes the step of adaptively controlling processing parameters, by setting a graphics acquisition device at each workstation to capture the edge and contour of the material strip in real time, and feeding it back to the control component to calculate and process the actual thickness of the material strip. The control component dynamically adjusts the punching force F' and the punching depth L' of the upper mold according to the actual thickness size data, material strip characteristics and process requirements.

9. The method for automated stamping of automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: Step S8 specifically includes the following steps: S801. Collect stamping data of each process, including the feed speed v, the stamping force F' and stamping depth L' of the upper die, the thickness and hardness of the strip, monitoring results, and adjustment measures of the control component; S802, simulation: using a machine learning algorithm to analyze and simulate the collected stamping data, and establish a prediction model based on the stamping data; S803, calculating abnormality probability: predicting the workpiece state during the stamping process using the prediction model and calculating the abnormality probability of the accessory, the workpiece state including the shape, size, and processing quality of the strip; S804, processing parameter optimization: the control component automatically adjusts the processing parameters according to the abnormal probability of the accessory.

10. The automated production and stamping method for automobile heater heat exchanger accessories with reinforcement ribs according to claim 1, characterized in that: The feeder completes the conveyance of the material belt through a driving wheel and a driven wheel provided at the output port. The material belt is placed between the driving wheel and the driven wheel. The driving wheel and the driven wheel are both provided with Hall sensors electrically connected to the control component, and are used to monitor the rotation speed v1 of the driving wheel and the rotation speed v2 of the driven wheel respectively. When |v1-v2|≤v3, it indicates that the feeding is normal and the control component does not respond; When v1-v2>v3, it indicates that the material strip is stuck during the stamping process, the control component responds by stopping the machine and prompting the operator to replace the spring plunger; When v1-v2<-v3, it means that the material strip slips during the stamping process, and the control component responds by stopping the machine and notifying the operator that the material strip has been transferred to the end and that a new material strip should be replaced in time; Among them, v3 is the speed deviation threshold, the unit is rad / s, and it satisfies the following relationship: Where r is the radius of the driving wheel, b is the acceptable length error of a single accessory, in mm, and s is the moving beat of the material strip, in s.

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