A punch manufacturing device for airbag holder production

Abstract

The present application belongs to the technical field of stamping equipment, in particular to a stamping manufacturing device for airbag bracket production, comprising a rack, a stamping driving mechanism, a bearing type die holder, a stamping forming die body, a punching head and a ejector rod, a waste discharge hole is formed on the bearing type die holder, a guide through hole is formed in the punching head, the ejector rod is slidingly arranged in the guide through hole, a ejector rod driving element is connected to the upper end of the ejector rod, and the lower end can extend into the waste discharge hole; the present application is also integrated with an intelligent control system, comprising a logic controller, a first pressure sensor, a second pressure sensor, a displacement sensor, a photoelectric sensor and a vibration sensor, which is used for real-time monitoring of the punching and ejecting process, judging whether the ejecting action is effective, identifying abnormal conditions such as jamming, and dynamically optimizing control parameters. The present application effectively solves the problem of waste blockage, improves the production continuity and the intelligent level of the equipment, and has the advantages of compact structure, accurate control, strong adaptability and the like.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, and in particular to a stamping manufacturing apparatus for the production of airbag brackets. Background Technology

[0002] The airbag bracket is a key structural component in a car's airbag system, typically formed using a stamping process. Existing stamping equipment usually employs an intermediate stamping head for forming the airbag bracket, while a side punching head simultaneously creates the mounting holes. Theoretically, the waste material generated during punching can be discharged downwards through the waste discharge hole.

[0003] However, in actual production, the waste generated during punching can easily clog the waste discharge hole of the bearing mold base, leading to waste accumulation and affecting continuous production. If the clogged waste is not cleaned in time, it will not only cause subsequent punching position deviations and affect product accuracy, but in severe cases, it can also damage the mold and increase maintenance costs. Therefore, corresponding improvements have been made to address this problem. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a stamping manufacturing apparatus for the production of airbag brackets.

[0005] This invention proposes a stamping manufacturing apparatus for producing airbag brackets, comprising a frame, a stamping drive mechanism mounted on the frame, a load-bearing mold base, a stamping forming mold, a punch head, and a push rod. The load-bearing mold base is fixedly installed on the lower part of the frame, and a waste discharge hole corresponding to the position of the punch head is opened on the load-bearing mold base. The stamping forming mold is disposed above the load-bearing mold base. The punch head is installed at the output end of the stamping drive mechanism, and a guide through hole is opened axially inside the punch head. The push rod is slidably disposed in the guide through hole. The upper end of the push rod is connected to a push rod drive element, and the lower end of the push rod can extend downward out of the punch head and into the waste discharge hole.

[0006] Preferably, the system further includes an intelligent control system, which includes a logic controller, a first pressure sensor, a second pressure sensor, a displacement sensor, and a photoelectric sensor; the first pressure sensor is used to detect the output pressure of the stamping drive mechanism; the second pressure sensor is used to detect the output pressure of the push rod drive element; the displacement sensor is used to detect the extension and retraction displacement of the push rod; the photoelectric sensor is used to detect whether waste material is discharged from the waste discharge hole; the logic controller is electrically connected to the first pressure sensor, the second pressure sensor, the displacement sensor, the photoelectric sensor, and the push rod drive element.

[0007] Preferably, the logic controller is configured as follows: after the punching head completes one punching action, it determines whether the punching process is normal based on the pressure change curve of the first pressure sensor; when the punching process is determined to be normal, it acquires the pressure value of the second pressure sensor and the displacement value of the displacement sensor, and compares them with preset ejection pressure threshold and ejection displacement threshold; if the pressure value of the second pressure sensor reaches the ejection pressure threshold and the displacement value of the displacement sensor reaches the ejection displacement threshold, and the photoelectric sensor detects a waste material passing signal within a preset time window, then the ejection action is determined to be valid, and the logic controller controls the ejector rod drive element to drive the ejector rod to reset; if the pressure value of the second pressure sensor reaches the ejection pressure threshold but the displacement value of the displacement sensor does not reach the ejection displacement threshold, or the photoelectric sensor does not detect a waste material passing signal within a preset time window, then the logic controller determines that the ejection action is abnormal and issues a first-level alarm signal; if the pressure value of the second pressure sensor continues to rise but the displacement value of the displacement sensor remains unchanged and exceeds a preset stall time threshold, then the logic controller determines that the ejector rod is stuck, issues a second-level alarm signal, and controls the stamping drive mechanism to stop running.

[0008] Preferably, the intelligent control system further includes a vibration sensor, which is electrically connected to the logic controller; the logic controller is further configured to: when the photoelectric sensor detects a waste material passing signal but the pressure value of the second pressure sensor does not reach the ejection pressure threshold, the logic controller determines whether the waste material falls naturally due to gravity based on the vibration signal of the vibration sensor; if the vibration signal shows waste material falling characteristics and the photoelectric sensor detects a waste material passing signal, then the ejection action is determined to be unnecessary, this ejection is recorded as a redundant action, and the ejection pressure threshold is optimized.

[0009] Preferably, the push rod driving element is a hydraulic cylinder or a pneumatic cylinder, the cylinder body of the push rod driving element is fixed to the upper end of the punch head, and the piston rod of the push rod driving element is fixedly connected to the upper end of the push rod.

[0010] Preferably, both the first pressure sensor and the second pressure sensor are strain gauge pressure sensors or piezoelectric pressure sensors.

[0011] Preferably, the photoelectric sensor is a through-beam photoelectric switch or a reflective photoelectric switch, and the transmitting end and receiving end of the photoelectric sensor are respectively disposed on both sides of the waste discharge hole outlet, or integrated on the same side of the waste discharge hole outlet.

[0012] Preferably, the logic controller includes a PLC programmable logic controller or an industrial control computer, and the logic controller is also connected to a human-machine interface, which is used to display the ejection action status, pressure curve, displacement curve and alarm information.

[0013] Preferably, the logic controller is further configured with an adaptive learning module, which dynamically updates the ejection pressure threshold and ejection displacement threshold based on the ejection pressure value, ejection displacement value, and photoelectric sensor detection results recorded in multiple consecutive punching cycles.

[0014] Preferably, the stamping drive mechanism includes a main hydraulic cylinder and a stamping slide block, the punch head is fixedly installed at the lower end of the stamping slide block, and the main hydraulic cylinder drives the stamping slide block to move up and down.

[0015] Compared with the prior art, the present invention provides a stamping manufacturing apparatus for the production of airbag brackets, which has the following beneficial effects: 1. This invention, by setting a push rod and its driving element, enables the punching head to actively extend downward into the waste discharge hole after punching, forcibly discharging potentially clogged waste, effectively solving the problem of waste accumulation in traditional stamping equipment, and ensuring the continuity and stability of the production process.

[0016] 2. By integrating a first pressure sensor, a second pressure sensor, a displacement sensor, a photoelectric sensor, and a logic controller, this invention enables real-time monitoring and intelligent judgment of the punching process and ejection action. It can automatically identify ejection abnormalities, jamming, and other situations, and issue graded alarms or emergency shutdowns, significantly improving the operational safety of the equipment.

[0017] 3. The logic controller has a built-in adaptive learning module that can dynamically update the ejection pressure threshold and displacement threshold based on historical punching cycle data, adapting to changes in working conditions such as different materials and mold wear, thereby improving the accuracy and intelligence of the control.

[0018] 4. This invention adds a vibration sensor to help determine whether waste falls naturally, avoiding false alarms or missed alarms, further improving the system's ability to identify abnormal working conditions and reducing the frequency of manual intervention.

[0019] 5. The logic controller is connected to a human-machine interface, which can display pressure curves, displacement curves, alarm information, etc. in real time, making it easy for operators to grasp the equipment status and respond quickly to abnormal situations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the state of the present invention before stamping; Figure 3 This is a schematic diagram of the state of the present invention during stamping; Figure 4 This is a schematic diagram showing the state of the invention during waste ejection; Figure 5 This is a block diagram illustrating the principle of the intelligent control system of the present invention.

[0021] In the diagram: 1. Frame; 2. Stamping drive mechanism; 201. Main hydraulic cylinder; 202. Stamping slide block; 3. Bearing mold base; 301. Scrap discharge hole; 4. Stamping forming mold body; 5. Punching head; 501. Guide through hole; 6. Ejector rod; 7. Ejector rod drive element; 8. Logic controller; 9. First pressure sensor; 10. Second pressure sensor; 11. Displacement sensor; 12. Photoelectric sensor; 13. Vibration sensor; 14. Human-machine interface. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Example 1: like Figures 1-2 As shown, a stamping manufacturing apparatus for producing airbag brackets includes a frame 1, a stamping drive mechanism 2 mounted on the frame 1, a load-bearing mold base 3, a stamping forming mold 4, a punch head 5, and a push rod 6.

[0025] The frame 1 is an integral welded frame structure with sufficient rigidity and stability to withstand the impact loads during the stamping process. The stamping drive mechanism 2 includes a main hydraulic cylinder 201 and a stamping slide block 202. The main hydraulic cylinder 201 is fixedly mounted on the upper crossbeam of the frame 1. The piston rod of the main hydraulic cylinder 201 extends downward and connects to the stamping slide block 202, driving the stamping slide block 202 to reciprocate up and down along the guide rail of the frame 1. The punching head 5 is fixedly mounted on the lower end of the stamping slide block 202 and moves together with the stamping slide block 202.

[0026] The load-bearing mold base 3 is fixedly installed on the lower worktable of the frame 1. The upper surface of the load-bearing mold base 3 is used to place the airbag bracket blank to be processed. The load-bearing mold base 3 has a waste discharge hole 301 corresponding to the position of the punch head 5. The waste discharge hole 301 is a through hole that penetrates the load-bearing mold base 3, and the waste generated by punching is discharged downward through the waste discharge hole 301. The stamping forming mold 4 is set above the load-bearing mold base 3. The stamping forming mold 4 is connected to or independently installed with the stamping slide block 202, and is used to cooperate with the punch head 5 to complete the forming process of the bracket.

[0027] The upper end of the push rod 6 extends out of the punch head 5 and connects to the push rod drive element 7. The push rod drive element 7 is a hydraulic cylinder, and its cylinder body is fixed to the upper end of the punch head 5 by a bracket. The piston rod of the push rod drive element 7 extends downward and is fixedly connected to the upper end of the push rod 6 by threads. The oil inlet and outlet of the push rod drive element 7 are connected to the hydraulic station through hydraulic pipelines, and its extension and retraction are controlled by a solenoid directional valve. The lower end of the push rod 6 is in the initial state (e.g., Figure 2 ) and during stamping (such as Figure 3 All of these are located inside the punch head 5, and during the ejection action, the punch head 5 extends downward and into the waste discharge hole 301 (e.g., Figure 4 This will push out any waste that may cause blockages.

[0028] Example 2: The key improvement in this embodiment is that an intelligent control system is added based on Embodiment 1. For example... Figure 5 As shown, the intelligent control system includes a logic controller 8, a first pressure sensor 9, a second pressure sensor 10, a displacement sensor 11, a photoelectric sensor 12, and a vibration sensor 13.

[0029] The logic controller 8 is a programmable logic controller (PLC), specifically a Siemens S7-1200 series PLC, installed in the electrical control cabinet on the side of rack 1. The logic controller 8 connects to various sensors and actuators via input / output modules to receive sensor signals and output control commands. The logic controller 8 is also connected to a human-machine interface 14, a touchscreen, which displays the ejection action status, pressure curve, displacement curve, and alarm information. Operators can set various parameters and thresholds through the human-machine interface 14.

[0030] The first pressure sensor 9 is installed in the hydraulic line of the stamping drive mechanism 2, specifically at the oil inlet of the main hydraulic cylinder 201, to detect the working pressure of the main hydraulic cylinder 201. The first pressure sensor 9 is a strain gauge pressure sensor with a range of 0-30 MPa, outputting a 4-20 mA standard current signal to the analog input module of the logic controller 8. The logic controller 8 collects the signal from the first pressure sensor 9 to monitor the pressure changes during the punching process in real time and generates a pressure change curve. When the punch head 5 contacts and penetrates the blank, the pressure exhibits characteristic rise and fall waveforms. The logic controller 8 compares this waveform with a preset standard pressure curve to determine whether the punching process is normal, such as whether there are problems like abnormal blank thickness or die wear.

[0031] The second pressure sensor 10 is installed in the drive line of the push rod drive element 7, specifically at the oil inlet of the push rod drive element 7, and is used to detect the working pressure of the push rod drive element 7. The second pressure sensor 10 is also a strain gauge pressure sensor with a range of 0-10 MPa, outputting a 4-20 mA standard current signal to the logic controller 8. During the downward extension of the push rod 6, if it encounters increased resistance due to blockage by waste material, the pressure value detected by the second pressure sensor 10 will increase accordingly. The logic controller 8 can determine the magnitude of the ejection resistance by monitoring this pressure value.

[0032] The displacement sensor 11 is a linear displacement sensor, specifically a magnetostrictive displacement sensor. The magnetic ring of the displacement sensor 11 is mounted on the upper end of the push rod 6 and moves with it. The waveguide rod of the displacement sensor 11 is parallel to the push rod 6, with its lower end fixed to one side of the punch head 5 via a bracket, and its upper end suspended. When the push rod 6 moves, the magnetic ring moves along the waveguide rod, and the displacement sensor 11 outputs an analog signal proportional to the displacement to the logic controller 8. The logic controller 8 collects the signal from the displacement sensor 11, monitors the extension length of the push rod 6 in real time, and determines whether the push rod 6 has reached its full position.

[0033] The photoelectric sensor 12 is a through-beam photoelectric switch, installed below the support mold base 3. The transmitter of the photoelectric sensor 12 is located on one side of the waste discharge hole 301 outlet, and the receiver is located on the opposite side of the waste discharge hole 301 outlet. The optical axes of the transmitter and receiver are aligned with the center of the waste discharge hole 301 outlet. When waste is discharged from the waste discharge hole 301, the waste blocks the optical axis, and the photoelectric sensor 12 outputs a switch signal to the logic controller 8. The logic controller 8 can confirm whether waste has actually been discharged by monitoring the signal from the photoelectric sensor 12.

[0034] Vibration sensor 13 is installed on the side wall of the bearing mold base 3, specifically a piezoelectric accelerometer, to detect vibration signals caused by waste discharge. When waste falls naturally under gravity and impacts the inner wall of the waste discharge hole 301 or the collection box below, it will generate characteristic vibration waveforms. The logic controller 8 can help determine whether waste has been discharged by collecting the signal from vibration sensor 13.

[0035] The specific installation methods of the above sensors are as follows: The first pressure sensor 9 is installed on the oil inlet pipe of the main hydraulic cylinder 201 through a threaded connector. During installation, ensure a good seal to prevent hydraulic oil leakage. The second pressure sensor 10 is installed on the oil inlet pipe of the push rod drive element 7 through a threaded connector. The waveguide rod of the displacement sensor 11 is fixed to the side of the punch head 5 through an L-shaped bracket. The bracket and punch head 5 are connected by bolts, ensuring that the waveguide rod is parallel to the push rod 6. The transmitting and receiving ends of the photoelectric sensor 12 are respectively installed below the bearing mold base 3 through U-shaped brackets. The bracket and bearing mold base 3 are connected by bolts. During installation, precisely adjust the optical axis position to ensure that the optical axis is aligned with the center of the waste discharge hole 301. The vibration sensor 13 is adsorbed onto the side wall of the bearing mold base 3 through a magnetic base. The adsorption position is as close as possible to the waste discharge hole 301 to obtain a stronger vibration signal.

[0036] The logic controller 8 has a pre-set control program to achieve intelligent control of the ejection action. The control logic mainly includes the following steps: Step S101, the stamping cycle begins. The logic controller 8 receives the stamping start signal from the host computer or the operation button, controls the solenoid directional valve of the main hydraulic cylinder 201 to operate, and the main hydraulic cylinder 201 drives the stamping slide block 202 to move the punching head 5 downward to complete the punching action on the airbag bracket blank.

[0037] Step S102, Punching Process Monitoring. During the punching process, the logic controller 8 collects pressure data from the first pressure sensor 9 in real time with a sampling period of 1ms, generates a pressure change curve, and compares it with a preset standard pressure curve. The standard pressure curve is a typical punching pressure waveform obtained through multiple tests, including characteristic points such as contact peak and penetration drop. If the deviation between the measured pressure curve and the standard pressure curve exceeds the allowable range, such as excessively high or low pressure peak or abnormal pressure drop timing, a punching abnormality is determined, and the logic controller 8 issues a punching abnormality alarm signal, prompting the operator to check the blank or mold.

[0038] In step S103, after punching is completed, the logic controller 8 controls the electromagnetic reversing valve of the push rod drive element 7 to operate, and the push rod drive element 7 drives the push rod 6 to extend downward. At the same time, the logic controller 8 begins to collect the pressure value of the second pressure sensor 10 and the displacement value of the displacement sensor 11 in real time, and monitors the output signal of the photoelectric sensor 12.

[0039] In step S104, the logic controller 8 determines whether the pressure value of the second pressure sensor 10 has reached the preset ejection pressure threshold Pth. The ejection pressure threshold Pth is set based on the pressure value required for normal ejection of waste material, and the initial value is set to 2MPa. If the pressure value does not reach Pth, data acquisition continues; if the pressure value reaches Pth, the next step of judgment is performed.

[0040] In step S105, the logic controller 8 determines whether the displacement value of the displacement sensor 11 reaches the preset ejection displacement threshold Dth. The ejection displacement threshold Dth is set based on the depth of the waste discharge hole 301 and the length that the ejector rod 6 needs to extend into, with an initial value set at 30mm. If the displacement value reaches Dth, the next step is performed; if the displacement value does not reach Dth but the pressure value of the second pressure sensor 10 continues to rise and exceeds Pth and remains there, it may be that the front end of the ejector rod 6 is stuck by a hard object. The logic controller 8 determines that the ejection is abnormal and executes step S108.

[0041] In step S106, the logic controller 8 monitors the signal of the photoelectric sensor 12 and determines whether a waste material passage signal is detected within a preset time window T. The time window T is set to within 2 seconds after the push rod 6 begins to extend. If the photoelectric sensor 12 outputs a waste material passage signal within the time window T, it indicates that the waste material has been successfully pushed out, and step S107 is executed. If the photoelectric sensor 12 does not detect a waste material passage signal within the time window T, there may be two situations: one is that the waste material is not blocked and the push rod 6 extends without being blocked; the other is that the waste material is blocked but the photoelectric sensor 12 is not triggered after being pushed out (such as the waste material being too small or offset). At this time, the logic controller 8 combines the signal of the vibration sensor 13 for auxiliary judgment. If the vibration sensor 13 detects the characteristic vibration waveform of the waste material falling, it indicates that the waste material has been discharged, and step S107 is executed again. If the vibration sensor 13 also does not detect a falling signal, it is determined that the pushing out is invalid, and step S108 is executed.

[0042] Step S107: The ejection action is valid. The logic controller 8 controls the ejector rod drive element 7 to reverse, driving the ejector rod 6 to reset upwards, awaiting the next punching cycle. Simultaneously, the logic controller 8 records the ejection pressure value, displacement value, and photoelectric sensor detection results into its internal memory for subsequent data analysis and threshold optimization.

[0043] Step S108: Abnormal ejection action. The logic controller 8 issues different levels of alarm signals based on the specific type of abnormality. If the pressure reaches the threshold but the displacement does not, or the photoelectric sensor does not detect the scrap signal, a first-level alarm signal is issued, prompting the operator to check whether the ejector rod 6 is stuck or whether the scrap discharge hole 301 is blocked. At the same time, abnormal data is recorded, but the stamping drive mechanism 2 continues to run, and the production line is not completely stopped. If the pressure value of the second pressure sensor 10 continues to rise and exceeds 1.5 times Pth, while the displacement value of the displacement sensor 11 remains unchanged and exceeds the preset stall time threshold Tlock (set to 0.5 seconds), the logic controller 8 determines that the ejector rod 6 is severely stuck, immediately issues a second-level alarm signal, and simultaneously controls the main hydraulic cylinder 201 and the ejector rod drive element 7 to stop running, and the stamping equipment is braked urgently to prevent damage to the ejector rod 6 or the punch head 5.

[0044] In this embodiment, the logic controller 8 is also equipped with an adaptive learning module. This module dynamically updates the ejection pressure threshold and ejection displacement threshold based on the ejection pressure value, ejection displacement value, and detection results of the photoelectric sensor 12 recorded in multiple consecutive punching cycles. For example, if multiple records show that the actual ejection pressure value is generally lower than the current threshold Pth, and the photoelectric sensor 12 can detect the scrap signal, the adaptive learning module will appropriately reduce Pth to avoid unnecessary judgments of excessive pressure. Conversely, if multiple records show that the actual ejection pressure value is close to or exceeds Pth, the adaptive learning module will appropriately increase Pth to more accurately reflect the actual working conditions. Through this adaptive learning mechanism, the device can adapt to changes in working conditions under different batches of materials and different wear levels, and always maintain optimal control parameters.

[0045] Example 3: This embodiment optimizes some structural features based on Embodiment 1. Unlike Embodiment 1, the push rod drive element 7 uses a pneumatic cylinder instead of a hydraulic cylinder, making it suitable for applications where high pushing force is not required but high operating speed is necessary. Correspondingly, the second pressure sensor 10 is a gas pressure sensor, installed in the cylinder's air intake pipe.

[0046] The displacement sensor 11 uses a draw-wire displacement sensor instead of a magnetostrictive displacement sensor. The draw-wire displacement sensor has its draw wire end fixed to the upper end of the push rod 6, and the sensor body is fixed to one side of the punch head 5. The displacement of the push rod 6 is measured by the extension and retraction of the draw wire. This structure has lower cost and is easier to install.

[0047] The photoelectric sensor 12 is a reflective photoelectric switch, with the transmitter and receiver integrated into the same housing and installed on the same side of the waste discharge port 301 outlet. The reflective photoelectric switch detects waste by utilizing the principle of light reflection when it passes through, eliminating the need for brackets on both sides, resulting in a more compact structure suitable for applications with limited installation space.

[0048] The logic controller 8 replaces the PLC with an industrial control computer. The industrial control computer has stronger data processing capabilities and richer interfaces, enabling it to run more complex control algorithms and data analysis programs. The industrial control computer is equipped with dedicated stamping process monitoring software, which can display pressure curves, displacement curves, vibration waveforms, etc. in real time, and can perform statistical analysis on historical data to generate production reports.

[0049] The remaining structure and working principle are the same as in Example 1, and will not be repeated here.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stamping manufacturing apparatus for producing airbag brackets, comprising a frame (1), a stamping drive mechanism (2) mounted on the frame (1), a load-bearing mold base (3), a stamping forming mold (4), a punching head (5), and a push rod (6), characterized in that, The bearing mold base (3) is fixedly installed on the lower part of the frame (1). The bearing mold base (3) has a waste discharge hole (301) corresponding to the position of the punch head (5). The stamping forming mold body (4) is set above the bearing mold base (3). The punch head (5) is installed at the output end of the stamping drive mechanism (2). The punch head (5) has a guide through hole (501) axially opened in the punch head (5). The push rod (6) is slidably set in the guide through hole (501). The upper end of the push rod (6) is connected to the push rod drive element (7). The lower end of the push rod (6) can extend downward out of the punch head (5) and into the waste discharge hole (301).

2. The stamping manufacturing apparatus for producing airbag brackets according to claim 1, characterized in that, It also includes an intelligent control system, which includes a logic controller (8), a first pressure sensor (9), a second pressure sensor (10), a displacement sensor (11), and a photoelectric sensor (12); the first pressure sensor (9) is used to detect the output pressure of the stamping drive mechanism (2); the second pressure sensor (10) is used to detect the output pressure of the push rod drive element (7); the displacement sensor (11) is used to detect the extension and retraction displacement of the push rod (6); the photoelectric sensor (12) is used to detect whether there is waste material discharged from the waste discharge hole (301); the logic controller (8) is electrically connected to the first pressure sensor (9), the second pressure sensor (10), the displacement sensor (11), the photoelectric sensor (12), and the push rod drive element (7).

3. A stamping manufacturing apparatus for producing airbag brackets according to claim 2, characterized in that, The logic controller (8) is configured as follows: after the punching head (5) completes one punching action, it determines whether the punching process is normal based on the pressure change curve of the first pressure sensor (9); when the punching process is determined to be normal, it acquires the pressure value of the second pressure sensor (10) and the displacement value of the displacement sensor (11), and compares them with the preset ejection pressure threshold and ejection displacement threshold; if the pressure value of the second pressure sensor (10) reaches the ejection pressure threshold and the displacement value of the displacement sensor (11) reaches the ejection displacement threshold, and at the same time the photoelectric sensor (12) detects the waste material passing signal within the preset time window, then the ejection action is determined to be valid, and the logic controller (8)... The control push rod drive element (7) drives the push rod (6) to reset; if the pressure value of the second pressure sensor (10) reaches the push-out pressure threshold but the displacement value of the displacement sensor (11) does not reach the push-out displacement threshold, or the photoelectric sensor (12) does not detect the waste material passing signal within the preset time window, then the logic controller (8) determines that the push-out action is abnormal and issues a first-level alarm signal; if the pressure value of the second pressure sensor (10) continues to rise but the displacement value of the displacement sensor (11) remains unchanged and exceeds the preset stall time threshold, then the logic controller (8) determines that the push rod (6) is stuck, issues a second-level alarm signal and controls the stamping drive mechanism (2) to stop running.

4. A stamping manufacturing apparatus for producing airbag brackets according to claim 3, characterized in that, The intelligent control system also includes a vibration sensor (13), which is electrically connected to the logic controller (8). The logic controller (8) is also configured to: when the photoelectric sensor (12) detects a waste passing signal but the pressure value of the second pressure sensor (10) does not reach the ejection pressure threshold, the logic controller (8) determines whether the waste falls naturally by gravity based on the vibration signal of the vibration sensor (13). If the vibration signal shows that there are waste falling characteristics and the photoelectric sensor (12) detects a waste passing signal, the ejection action is determined to be unnecessary, and this ejection is recorded as a redundant action and the ejection pressure threshold is optimized.

5. A stamping manufacturing apparatus for producing airbag brackets according to claim 1, characterized in that, The push rod drive element (7) is a hydraulic cylinder or a pneumatic cylinder. The cylinder body of the push rod drive element (7) is fixed to the upper end of the punch head (5), and the piston rod of the push rod drive element (7) is fixedly connected to the upper end of the push rod (6).

6. A stamping manufacturing apparatus for producing airbag brackets according to claim 2, characterized in that, The first pressure sensor (9) and the second pressure sensor (10) are both strain gauge pressure sensors or piezoelectric pressure sensors.

7. A stamping manufacturing apparatus for producing airbag brackets according to claim 2, characterized in that, The photoelectric sensor (12) is a through-beam photoelectric switch or a reflective photoelectric switch. The transmitting end and receiving end of the photoelectric sensor (12) are respectively set on both sides of the outlet of the waste discharge hole (301), or integrated on the same side of the outlet of the waste discharge hole (301).

8. A stamping manufacturing apparatus for producing airbag brackets according to claim 2, characterized in that, The logic controller (8) includes a PLC programmable logic controller or an industrial control computer. The logic controller (8) is also connected to a human-machine interface (14), which is used to display the ejection action status, pressure curve, displacement curve and alarm information.

9. A stamping manufacturing apparatus for producing airbag brackets according to claim 3, characterized in that, The logic controller (8) is also equipped with an adaptive learning module, which dynamically updates the ejection pressure threshold and ejection displacement threshold based on the ejection pressure value, ejection displacement value and photoelectric sensor (12) detection results recorded in multiple consecutive punching cycles.

10. A stamping manufacturing apparatus for producing airbag brackets according to claim 1, characterized in that, The stamping drive mechanism (2) includes a main hydraulic cylinder (201) and a stamping slide block (202). The punching head (5) is fixedly installed at the lower end of the stamping slide block (202). The main hydraulic cylinder (201) drives the stamping slide block (202) to move up and down.

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