Tire puncture resistance automatic simulation testing machine and testing method thereof

Abstract

The invention relates to the technical field of test equipment, in particular to a tire puncture resistance automatic simulation test machine and a test method thereof. The device comprises an objective table, a protective cover and a device body, the objective table comprises an objective plate and a vertical support, the protective cover is installed on the vertical support, and the device body covers the interior of the protective cover; a transparent observation window is arranged at the lower part of the protective cover; the device body comprises a driving module, a puncturing module, a fastening module and a detection module which are sequentially arranged from top to bottom. Full-process automation is achieved through the control box, the driving electric cylinder is controlled to move, key data such as pressure and displacement are collected in real time, a puncture force-displacement curve graph is formed, the puncture resistance of the tire is quantitatively evaluated, the mechanical parameter collection error is smaller than or equal to + / -3.0%, and the working efficiency is effectively improved by 50%; and a plurality of device bodies can be placed in the protective cover, so that batch tests of different batches and different dynamic parameters are realized, and diversified test requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of test equipment, and particularly relates to a tire puncture resistance automatic simulation testing machine and a testing method thereof. Background Art

[0002] At present, the tire puncture resistance performance test often adopts the traditional manual puncture method, which has problems such as low efficiency, poor data consistency, and inaccurate acquisition. Manual operation is likely to cause subjective deviation in the test results, and it is difficult to carry out high-frequency and multi-variable tests. Most of the existing automatic equipment uses a single puncture parameter, such as free fall or fixed pressure, and cannot simulate complex road conditions. At the same time, such equipment lacks a module for dynamically adjusting the puncture force / speed and is difficult to reflect the performance of the tire in real use scenarios. To solve the above technical problems, those skilled in the art have made explorations. For example, Chinese Patent Grant Publication No. CN218444488U discloses a tire puncture resistance fatigue test device, in which a position measuring sensor is provided on one side of the mounting base, and a punching needle is fixed below the mounting frame. However, this solution still fails to solve the existing problems: the puncture parameters of the automatic equipment are single, it cannot simulate complex road conditions, and there is a lack of a dynamic adjustment module, making it difficult to accurately present the true performance of the tire. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide a tire puncture resistance automatic simulation testing machine and a testing method thereof.

[0004] The technical solution adopted by the present invention is as follows: A tire puncture resistance automatic simulation testing machine includes a loading platform, a protective cover, and a device body, wherein: The loading platform is in an L shape and includes a loading plate and a vertical support. A protective cover is installed on the vertical support, and the device body is covered inside the protective cover; The protective cover is in a vertical cover shape, and a transparent observation window is provided at its lower part. The transparent observation window is used to observe the rubber block to be punctured and for personnel protection; The device body includes a driving module, a puncturing module, a fastening module, and a detection module arranged in sequence from top to bottom, wherein: The driving module is a driving electric cylinder. The cylinder part of the driving electric cylinder is slidably arranged on the vertical support through a support rail, and the piston part of the driving electric cylinder is installed with a puncturing module; The puncturing module is a puncturing needle. The puncturing needle is detachably installed at the end of the piston part and uniformly punctures the rubber block under the drive of the cylinder part; The fastening module is in an arched shape, and an opening for the puncturing needle to pass through is provided at its top. The rubber block to be punctured is fixed below its arch, and its two sides are fixed on the loading plate by bolts; The detection module, located between the rubber block and the loading plate, includes a pressure sensor and a displacement sensor. The pressure sensor is used to detect the pressure borne by the rubber block, and the displacement sensor is used to detect the distance of downward movement of the rubber block.

[0005] In this technical solution, the cut rubber block is placed under the device body, and the detection module integrates a pressure sensor and a displacement sensor to simultaneously detect the pressure and displacement during the puncture process. The puncture module is a detachable structure, which can conveniently replace the puncture needle with other needle-like structures, thereby realizing the simulation of various working conditions and the quantitative evaluation of the puncture resistance performance. Specifically, the driving electric cylinder realizes the linear reciprocating motion of the piston part by sliding the cylinder body on the support track to simulate the situation of the tire being punctured at different speeds and forces. The puncture needle is detachable, which is convenient to replace needles with different shapes, sizes and materials according to different test requirements to simulate various possible puncturing objects. The opening provided in the arched top allows the puncture needle to pass through smoothly, ensuring the smooth progress of the puncture action. The rubber block is firmly fixed on the loading platform to ensure the stable position of the rubber block during the puncture process without moving or shaking. The pressure sensor is based on the piezoelectric effect principle and can real-time detect the pressure change borne by the rubber block during the puncture process, convert the pressure signal into an electrical signal and output it; the displacement sensor measures the downward movement distance of the rubber block relative to the initial position, uses inductive measurement, and converts the displacement signal into an electrical signal. This technical solution is simple and convenient to apply, small in size, convenient for indoor operation, and can effectively improve the working efficiency by 50%.

[0006] In addition, according to the above-mentioned tire puncture resistance automatic simulation testing machine of the present invention, it may also have the following additional technical features: According to an embodiment of the present invention, a control box is provided on one side of the device body. The input end of the control box is connected to the detection module through a signal line for collecting dynamic parameters during the puncture process; the output end of the control box is connected to the driving electric cylinder through a control line for controlling the piercing speed and piercing depth of the driving electric cylinder, thereby forming a closed-loop control system.

[0007] In this technical solution, the control box is externally placed outside the device body and is connected to the device body by wiring. The control box is used to control the motion parameters of the driving electric cylinder to realize the automatic execution of the puncture action, and realizes closed-loop control through the detection module to timely adjust the error of the driving electric cylinder; at the same time, the collected dynamic parameters are used to quantify the puncture resistance ability of the tire.

[0008] According to an embodiment of the present invention, the transparent observation window and the protective cover are arranged to slide relative to each other. When it is necessary to place the rubber block, the transparent observation window moves relative to the protective cover to open the space below the protective cover, and the rubber block is placed in the fastening module and fixed.

[0009] In this technical solution, the transparent observation window is made of a transparent material, and the transparent observation window can be manually moved along the protective cover, thereby opening the lower part of the protective cover to provide a passage for placing the rubber block; after the rubber block is placed, the transparent observation window can be reset.

[0010] According to an embodiment of the present invention, the puncturing needle is replaced with a conical nail or a spiral nail.

[0011] In this technical solution, the puncturing needle can be selected as a conical nail or a spiral nail according to actual needs, which can simulate the objects that actually puncture the tire, improving the authenticity of the simulation.

[0012] According to an embodiment of the present invention, the pressure sensor is clamped between two pressure plates, and the pressure plates are located directly below the rubber block. By using the bending deformation of the pressure sensor, the pressure borne by the rubber block is judged.

[0013] In this technical solution, since the pressure sensor has a sensitive element inside, indirect conduction by the pressure plate is required to avoid reducing the service life of the pressure sensor due to direct action.

[0014] According to an embodiment of the present invention, the displacement sensor is located between the pressure plate and the load plate, and is used to detect the relative displacement size between the pressure plate and the load plate, thereby indirectly judging the distance of the rubber block moving downward.

[0015] In this technical solution, the displacement sensor uses inductive measurement. When a relative displacement occurs between the pressure plate and the load plate, the sensitive element inside the displacement sensor will change accordingly, resulting in a change in inductance.

[0016] According to an embodiment of the present invention, at least one device body is placed inside the protective cover, and several device bodies are all connected to the control box.

[0017] In this technical solution, in order to improve the detection efficiency, the puncture resistance tests of several device bodies can be carried out simultaneously. Either the same batch of tires can be used for repeated measurements and then the average value can be taken to reduce errors; or different batches of tires can be used for comparison under the same dynamic parameters, with each other as control groups; or random batch control of different batches and different dynamic parameters can be carried out to improve the test efficiency.

[0018] According to an embodiment of the present invention, the control box is a PLC controller or an industrial computer. By collecting the dynamic parameters during the puncturing process, a puncturing force-displacement curve graph is formed, which is used to calculate the puncturing energy absorption rate, the maximum puncturing force, the friction force, and the rubber block rebound rate, so as to quantify the puncture resistance ability of the tire.

[0019] In this technical solution, the control box realizes full-process automation based on a PLC or an industrial computer, enabling high-frequency and multi-variable tests, with the acquisition error of mechanical parameters being ≤ ±3.0%, which can reflect the tire performance under real usage scenarios.

[0020] In this technical solution, To achieve the above object, the present invention also provides a test method for a tire puncture resistance automatic simulation testing machine.

[0021] A test method for a tire puncture resistance automatic simulation testing machine includes the following steps: S1. Zero point calibration: Before each test, zero point calibration is performed on the pressure sensor and the displacement sensor to ensure that the detection module outputs a value of zero in the initial state, that is, when there is no external force and displacement, preparing for accurate measurement of the pressure borne by the rubber block and the downward displacement in the subsequent process; S2. Parameter setting: Input dynamic parameters through the control box to control the movement of the driving electric cylinder; S3. Place the rubber block, move the transparent observation window relative to the protective cover, and open the space below the protective cover: Place the rubber block to be punctured in the fastening module and fix the fastening module on the carrier plate with bolts to ensure the stability of the rubber block during the test; S4. Test preparation: Check whether the puncture needle is firmly installed and replace it with a conical nail or a spiral nail as needed: Ensure that the pressure sensor is clamped between two pressure plates, directly below the rubber block, the displacement sensor is located between the pressure plate and the carrier plate, and the detection module is normally connected to the control box. The cylinder part of the driving electric cylinder is slidably arranged on the vertical support through a support track, and the piston part is equipped with a puncture module; S5. Test stage: Start the control box and control the driving electric cylinder to operate according to the preset penetration speed and penetration depth: The piston part of the driving electric cylinder drives the puncture needle to uniformly puncture the rubber block: During the puncture process, the pressure sensor of the detection module real-time detects the pressure borne by the rubber block, and the displacement sensor real-time detects the downward displacement of the rubber block: At the same time, the control box synchronously collects the puncture resistance and puncture energy; S6. Data analysis: After the control box collects the dynamic parameters during the puncture process, a puncture force-displacement curve graph is formed: Based on the puncture force-displacement curve graph, calculate the puncture energy absorption rate, maximum puncture force, friction force, and rubber block rebound rate to quantify the tire puncture resistance ability; S7. End the test: When the puncture module completes a puncture cycle, the driving electric cylinder returns to the initial position, open the transparent observation window, take out the punctured rubber block, clean the device, and prepare for the next test: If there are multiple device bodies placed in the protective cover, the above operations can be sequentially repeated for each device body, and all device bodies are connected to the control box to achieve batch tests and data acquisition and analysis.

[0022] Through the zero-point calibration link, the pressure sensor and displacement sensor are initialized and calibrated to ensure that the output value is zero under the initial state without external force and displacement. Then, through the parameter setting link, dynamic parameters are input using the control box to accurately control the movement trajectory and speed of the driving electric cylinder. Next, through the rubber block placement link, the space under the protective cover is opened and the rubber block to be tested is firmly installed in the fastening module to ensure the stability of the rubber block during the test. Subsequently, through the test preparation link, a comprehensive inspection is carried out to confirm that the puncturing needle is firmly installed, the position of the sensor is correct and the connection is normal, and the driving electric cylinder and puncturing module are installed in place. Furthermore, through the test stage link, the control box is started to drive the electric cylinder to run according to the preset parameters, so that the puncturing needle evenly punctures the rubber block, and at the same time, key data such as pressure, displacement, puncturing resistance, and energy are collected in real time. Then, through the data analysis link, a puncturing force-displacement curve is drawn based on the collected dynamic parameters, and quantitative indexes such as puncturing energy absorption rate, maximum puncturing force, friction force, and rubber block rebound rate are calculated to scientifically evaluate the puncture resistance of the tire. Finally, through the end test link, after reaching the specified number of punctures, the driving electric cylinder is stopped, the rubber block after the test is taken out and the device is cleaned. If there are multiple device bodies, the above operations can be repeated in sequence to achieve efficient batch testing and data acquisition and analysis.

[0023] Compared with the prior art, the present invention has the following beneficial effects: (1) The whole process is automated through the control box to control the movement of the driving electric cylinder, collect key data such as pressure and displacement in real time, form a puncturing force-displacement curve, and quantitatively evaluate the puncture resistance of the tire. The acquisition error of mechanical parameters is ≤±3.0%, effectively improving the work efficiency by 50%; (2) The puncturing needle can be detachably replaced with a conical nail or a spiral nail to simulate various puncturing objects; multiple device bodies can be placed in the protective cover to realize batch testing with different batches and different dynamic parameters, meeting diverse testing requirements; (3) The arched fastening module ensures the stable position of the rubber block during the test. The pressure sensor and displacement sensor respectively detect pressure and displacement, and the displacement sensor uses inductive measurement to ensure the accuracy and reliability of the test data. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present invention.

[0025] Figure 2 is a schematic structural diagram of the device body.

[0026] In the figure: 1, loading platform; 2, protective cover; 3, device body; 31, support track; 32, driving module; 33, puncturing module; 34, fastening module; 35, detection module; 4, observation window; 5, control box. Detailed Embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1 As Figure 1 and Figure 2 shown, this embodiment provides an automatic simulation test machine for puncture resistance of tires, including a loading platform 1, a protective cover 2, and a device body 3, where: The loading platform 1 is arranged in an L shape, including a loading plate and a vertical bracket. A protective cover 2 is installed on the vertical bracket, and the device body 3 is covered inside the protective cover 2; The protective cover 2 is arranged in a vertical cover shape, and a transparent observation window 4 is provided at its lower part. The transparent observation window 4 is used to observe the rubber block to be punctured and for personnel protection; The device body 3 includes a driving module 32, a puncturing module 33, a fastening module 34, and a detection module 35 arranged in sequence from top to bottom, where: The driving module 32 is a driving electric cylinder. The cylinder part of the driving electric cylinder is slidably arranged on the vertical bracket through a support rail 31, and the piston part of the driving electric cylinder is installed with a puncturing module 33; The puncturing module 33 is a puncturing needle. The puncturing needle is detachably installed at the end of the piston part and uniformly punctures the rubber block under the drive of the cylinder part; The fastening module 34 is arranged in an arch shape. An opening for the puncturing needle to pass through is provided at its top. The rubber block to be punctured is fixed below the arch, and its two sides are fixed on the loading plate by bolts; The detection module 35 is located between the rubber block and the loading plate and includes a pressure sensor and a displacement sensor. The pressure sensor is used to detect the pressure borne by the rubber block, and the displacement sensor is used to detect the distance of the rubber block moving downward.

[0029] In this technical solution, the cut rubber block is placed under the device body 3, and the detection module 35 integrates a pressure sensor and a displacement sensor to detect the pressure and displacement during the puncture process simultaneously; the puncture module 33 is a detachable structure, which can conveniently replace the puncture needle with other needle-shaped structures, so as to realize the simulation of various working conditions and the quantitative evaluation of the puncture resistance performance. Specifically, the driving electric cylinder realizes the linear reciprocating motion of the piston part by the sliding of the cylinder body part on the support rail 31 to simulate the situation of the tire being punctured at different speeds and forces. The puncture needle is detachable, which is convenient to replace needles with different shapes, sizes and materials according to different test requirements to simulate various possible puncturing objects. The opening provided on the arched top allows the puncture needle to pass through smoothly, ensuring the smooth progress of the puncture action. The rubber block is firmly fixed on the loading platform 1 to ensure the stable position of the rubber block during the puncture process without moving or shaking. The pressure sensor is based on the piezoelectric effect principle and can detect the pressure change borne by the rubber block during the puncture process in real time, converting the pressure signal into an electrical signal for output; the displacement sensor measures the downward displacement distance of the rubber block relative to the initial position by inductive measurement and converts the displacement signal into an electrical signal. This technical solution is simple and convenient to apply, small in size, convenient for indoor operation, and can effectively improve the work efficiency by 50%.

[0030] In addition, according to the above-mentioned tire puncture resistance automatic simulation testing machine of the present invention, it may also have the following additional technical features: According to an embodiment of the present invention, a control box 5 is provided on one side of the device body 3. The input end of the control box 5 is connected to the detection module 35 through a signal line for collecting dynamic parameters during the puncture process; the output end of the control box 5 is connected to the driving electric cylinder through a control line for controlling the piercing speed and piercing depth of the driving electric cylinder, thereby forming a closed-loop control system.

[0031] In this technical solution, the control box 5 is externally placed outside the device body 3 and is connected to the device body 3 by wiring; the control box 5 is used to control the motion parameters of the driving electric cylinder to realize the automatic execution of the puncture action, and realizes closed-loop control through the detection module 35 to timely adjust the error of the driving electric cylinder; at the same time, the collected dynamic parameters are used to quantify the puncture resistance ability of the tire.

[0032] According to an embodiment of the present invention, the transparent observation window 4 and the protective cover 2 are arranged to slide relative to each other. When it is necessary to place the rubber block, the transparent observation window 4 moves relative to the protective cover 2 to open the space below the protective cover 2, and the rubber block is placed in the fastening module 34 and fixed.

[0033] In this technical solution, the transparent observation window 4 is made of a transparent material, and the transparent observation window 4 can be manually moved along the protective cover 2 to open the lower part of the protective cover 2, providing a passage for placing the rubber block. After the rubber block is placed, the transparent observation window 4 can be reset.

[0034] According to an embodiment of the present invention, the puncturing needle is replaced with a conical nail or a spiral nail.

[0035] In this technical solution, the puncturing needle can be selected as a conical nail, a spiral nail or other objects that can simulate the actual puncture of a tire according to actual needs, improving the authenticity of the simulation.

[0036] According to an embodiment of the present invention, the pressure sensor is clamped between two pressure plates, and the pressure plates are located directly below the rubber block. By using the bending deformation of the pressure sensor, the pressure borne by the rubber block is judged.

[0037] In this technical solution, since the pressure sensor has a sensitive element inside, an indirect conduction through the pressure plate is required to avoid reducing the service life of the pressure sensor due to direct action.

[0038] According to an embodiment of the present invention, the displacement sensor is located between the pressure plate and the loading plate, and is used to detect the relative displacement size between the pressure plate and the loading plate, thereby indirectly judging the downward displacement distance of the rubber block.

[0039] In this technical solution, the displacement sensor uses inductive measurement. When a relative displacement occurs between the pressure plate and the loading plate, the sensitive element inside the displacement sensor will change accordingly, resulting in a change in inductance.

[0040] According to an embodiment of the present invention, at least one device body 3 is placed inside the protective cover 2, and several device bodies 3 are all connected to the control box 5.

[0041] In this technical solution, in order to improve the detection efficiency, the puncture resistance tests of several device bodies 3 can be carried out simultaneously. The same batch of tires can be used for repeated measurement and then the average value can be taken to reduce errors; different batches of tires can also be used for comparison under the same dynamic parameters, with each other as control groups; or random batch control of different batches and different dynamic parameters can be carried out to improve the test efficiency.

[0042] According to an embodiment of the present invention, the control box 5 is a PLC controller or an industrial computer. By collecting the dynamic parameters during the puncturing process, a puncturing force-displacement curve graph is formed, which is used to calculate the puncturing energy absorption rate, the maximum puncturing force, the friction force, and the rubber block rebound rate, so as to quantify the puncture resistance ability of the tire.

[0043] In this technical solution, the control box 5 realizes full-process automation based on a PLC or an industrial computer, enabling high-frequency and multi-variable tests, with the mechanical parameter acquisition error being ≤ ±3.0%, which can reflect the tire performance under real usage scenarios.

[0044] Embodiment 2 Based on Embodiment 1, as Figure 1 and Figure 2 shown, this embodiment provides a test method for a tire puncture resistance automated simulation testing machine, including the following steps: S1. Zero-point calibration: Before each test, perform zero-point calibration on the pressure sensor and displacement sensor to ensure that when the detection module 35 is in the initial state, that is, without external force and displacement, the output value is zero, preparing for accurate measurement of the pressure borne by the rubber block and the downward displacement distance in the follow-up. S2. Parameter setting: Input dynamic parameters through the control box 5 to control the movement of the driving electric cylinder. S3. Place the rubber block, move the transparent observation window 4 relative to the protective cover 2, and open the space below the protective cover 2: Place the rubber block to be punctured in the fastening module 34 and fix the fastening module 34 on the load plate through bolts to ensure that the rubber block remains stable during the test. S4. Test preparation: Check whether the puncture needle is firmly installed and replace it with a conical nail or a spiral nail as needed: Ensure that the pressure sensor is clamped between two pressure plates, directly below the rubber block, the displacement sensor is located between the pressure plate and the load plate, and the detection module 35 is normally connected to the control box 5. The cylinder part of the driving electric cylinder is slidably arranged on the vertical support through the support rail 31, and the piston part is equipped with a puncture module 33. S5. Test stage: Start the control box 5 and control the driving electric cylinder to run according to the preset penetration speed and penetration depth: The piston part of the driving electric cylinder drives the puncture needle to uniformly puncture the rubber block: During the puncture process, the pressure sensor of the detection module 35 continuously detects the pressure borne by the rubber block, and the displacement sensor continuously detects the downward displacement distance of the rubber block: At the same time, the control box 5 synchronously collects the puncture resistance and puncture energy. S6. Data analysis: After the control box 5 collects the dynamic parameters during the puncture process, a puncture force-displacement curve graph is formed: Based on the puncture force-displacement curve graph, calculate the puncture energy absorption rate, maximum puncture force, friction force, and rubber block rebound rate to quantify the tire puncture resistance ability. S7. End the test: When the puncture module completes a puncture cycle, the driving electric cylinder returns to the initial position, open the transparent observation window 4, take out the punctured rubber block, clean the device, and prepare for the next test: If there are multiple device bodies 3 placed in the protective cover 2, the above operations can be sequentially repeated for each device body 3, and all device bodies 3 are connected to the control box 5 to achieve batch tests and data acquisition and analysis.

[0045] Through the zero-point calibration link, the pressure sensor and the displacement sensor are initialized and calibrated to ensure that the output value is zero under the initial state without external force and displacement. Then, through the parameter setting link, the dynamic parameters are input by the control box 5 to accurately control the movement trajectory and speed of the driving electric cylinder. Next, through the link of placing the rubber block, the space below the protective cover 2 is opened and the rubber block to be tested is firmly installed in the fastening module 34 to ensure the stability of the rubber block during the test. Subsequently, through the test preparation link, it is comprehensively checked and confirmed that the puncture needle is firmly installed, the sensor position is correct and the connection is normal, and the driving electric cylinder and the puncture module 33 are installed in place. Furthermore, through the test stage link, the control box 5 is started to drive the electric cylinder to operate according to the preset parameters, so that the puncture needle uniformly punctures the rubber block, and at the same time, key data such as pressure, displacement, puncture resistance and energy are collected in real time. Then, through the data analysis link, a puncture force-displacement curve graph is drawn based on the collected dynamic parameters, and quantitative indexes such as puncture energy absorption rate, maximum puncture force, friction force and rubber block rebound rate are calculated accordingly to scientifically evaluate the puncture resistance of the tire. Finally, through the end test link, after reaching the specified number of punctures, the operation of the driving electric cylinder is stopped, the rubber block after the test is taken out and the device is cleaned. If there are multiple device bodies 3, the above operations can be repeated in sequence to achieve efficient batch tests and data collection and analysis.

[0046] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. / Any person familiar with the technical field of the present invention can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automated simulation testing machine for puncture resistance of tires, characterized in that, It includes a stage (1), a protective cover (2) and a device body (3), where: The stage (1) is arranged in an L shape and includes a loading plate and a vertical bracket. The protective cover (2) is installed on the vertical bracket, and the device body (3) is covered inside the protective cover (2); The protective cover (2) is arranged in a vertical cover shape, and a transparent observation window (4) is arranged at its lower part. The transparent observation window (4) is used to observe the rubber block to be punctured and for personnel protection; The device body (3) includes a driving module (32), a puncturing module (33), a fastening module (34) and a detection module (35) which are arranged in sequence from top to bottom, where: The driving module (32) is a driving electric cylinder. The cylinder part of the driving electric cylinder is slidably arranged on the vertical bracket through a support track (31), and the piston part of the driving electric cylinder is installed with the puncturing module (33); The puncturing module (33) is a puncturing needle, and the puncturing needle is detachably installed at the end of the piston part and uniformly punctures the rubber block under the drive of the cylinder part; The fastening module (34) is arranged in an arch shape. An opening for the puncturing needle to pass through is opened at its top. The rubber block to be punctured is fixed under its arch, and its two sides are fixed on the loading plate by bolts; The detection module (35) is located between the rubber block and the loading plate and includes a pressure sensor and a displacement sensor. The pressure sensor is used to detect the pressure borne by the rubber block, and the displacement sensor is used to detect the distance of the rubber block moving downward.

2. The puncture-resistant automated simulation testing machine for tires according to claim 1, wherein A control box (5) is arranged on one side of the device body (3). The input end of the control box (5) is connected to the detection module (35) through a signal line and is used to collect dynamic parameters during the puncturing process; the output end of the control box (5) is connected to the driving electric cylinder through a control line and is used to control the piercing speed and piercing depth of the driving electric cylinder, thereby forming a closed-loop control system.

3. The puncture-resistant automated simulation testing machine for tires according to claim 1, wherein, The transparent observation window (4) is arranged to slide relative to the protective cover (2). When it is necessary to place the rubber block, the transparent observation window (4) moves relative to the protective cover (2) to open the space below the protective cover (2), and the rubber block is placed in the fastening module (34) and fixed.

4. The tire puncture resistance automated simulation testing machine according to claim 1, characterized in that, The puncturing needle is replaced with a conical nail or a spiral nail.

5. The tire puncture resistance automatic simulation testing machine according to claim 1, characterized in that, The pressure sensor is clamped between two pressure plates. The pressure plates are located directly below the rubber block. The bending deformation of the pressure sensor is used to judge the pressure borne by the rubber block.

6. The puncture-resistant automated simulation testing machine for tires according to claim 5, characterized in that, The displacement sensor is located between the pressure plate and the loading plate and is used to detect the relative displacement size between the pressure plate and the loading plate, thereby indirectly judging the distance of the rubber block moving downward.

7. The puncture-resistant automated simulation testing machine for tires according to claim 2, characterized in that, At least one device body (3) is placed inside the protective cover (2), and several device bodies (3) are all connected to the control box (5).

8. The tire puncture resistance automated simulation testing machine according to claim 7, characterized in that, The control box (5) is a PLC controller or an industrial control computer. By collecting dynamic parameters during the puncturing process, a puncturing force-displacement curve graph is formed, which is used to calculate the puncturing energy absorption rate, the maximum puncturing force, the friction force, and the rubber block rebound rate, thereby quantifying the puncture resistance ability of the tire.

9. A test method for an automated puncture resistance simulation test machine for tires, using the automated puncture resistance simulation test machine for tires according to any one of claims 1-8, characterized in that, It includes the following steps: S1. Zero calibration: Before each test, zero-calibrate the pressure sensor and displacement sensor to ensure that the detection module (35) outputs a value of zero in the initial state, i.e., when there is no external force and displacement, preparing for subsequent accurate measurement of the pressure and downward displacement borne by the rubber block; S2. Parameter setting: Input dynamic parameters through the control box (5) to control the movement of the driving electric cylinder; S3. Place the rubber block and move the transparent observation window (4) relative to the protective cover (2) to open the space below the protective cover (2): Place the rubber block to be punctured in the fastening module (34), and fix the fastening module (34) on the load plate with bolts to ensure that the rubber block remains stable during the test; S4. Test preparation: Check whether the puncturing needle is firmly installed and replace it with a conical nail or a spiral nail as needed: Ensure that the pressure sensor is clamped between two pressure plates, directly below the rubber block, the displacement sensor is located between the pressure plate and the load plate, and the detection module (35) is normally connected to the control box (5). The cylinder part of the driving electric cylinder is slidably arranged on the vertical bracket through the support track (31), and the piston part is equipped with a puncturing module (33); S5. Test stage: Start the control box (5) and control the driving electric cylinder to operate at a preset piercing speed and piercing depth: The piston part of the driving electric cylinder drives the puncturing needle to uniformly puncture the rubber block: During the puncturing process, the pressure sensor of the detection module (35) real-time detects the pressure borne by the rubber block, and the displacement sensor real-time detects the downward displacement distance of the rubber block: At the same time, the control box (5) synchronously collects the piercing resistance and piercing energy; S6. Data analysis: After the control box (5) collects the dynamic parameters during the puncturing process, form a piercing force-displacement curve graph: Based on the piercing force-displacement curve graph, calculate the piercing energy absorption rate, maximum piercing force, friction force, and rubber block rebound rate to quantify the puncture resistance ability of the tire; S7. End the test: When the puncturing module (33) completes a puncturing cycle, the driving electric cylinder returns to the initial position, open the transparent observation window (4), take out the punctured rubber block, clean the device, and prepare for the next test: If there are multiple device bodies (3) placed in the protective cover (2), the above operations can be repeated for each device body (3) in turn, and all device bodies (3) are connected to the control box (5) to achieve batch testing and data acquisition and analysis.

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