Intelligent closed-loop control tensile test full-process automatic equipment

Abstract

This utility model discloses an intelligent closed-loop controlled fully automated tensile testing equipment. The intelligent closed-loop controlled fully automated tensile testing equipment includes a sample storage module, an identification module, a feature measurement module, two mechanical property testing modules, a sample transfer module, a data acquisition and analysis module, and a control module. The data acquisition and analysis module is communicatively connected to the identification module, feature measurement module, and mechanical property testing module. The control module is also communicatively connected to these modules. The intelligent closed-loop controlled fully automated tensile testing equipment provided by this utility model enables fully automated testing operations without human intervention, significantly improving testing efficiency while greatly reducing labor costs and effectively avoiding human error, providing strong support for large-scale, standardized material testing.

Description

Technical Field

[0001] This utility model specifically relates to an intelligent closed-loop control fully automated equipment for tensile testing, belonging to the technical field of intelligent testing equipment. Background Technology

[0002] In materials mechanical property testing, tensile testing is a common and important method used to determine key mechanical properties such as yield strength, tensile strength, elastic modulus, elongation, and reduction of area. Traditional tensile testing equipment often requires manual operation for steps such as specimen selection, clamping, testing, recording of results, and specimen classification. This is not only inefficient but also prone to significant errors, making it difficult to guarantee the accuracy and consistency of test results. Although some existing tensile testing equipment has incorporated automation technology, most only automate single steps, such as simple automatic clamping or automatic testing. There is a lack of effective coordination and data exchange between devices, making it impossible to dynamically adjust and optimize the entire testing process based on real-time data during the test. This makes it difficult to meet the demands for high-precision and high-efficiency materials mechanical property testing. Summary of the Invention

[0003] The main objective of this invention is to provide an intelligent closed-loop control fully automated tensile testing equipment, thereby overcoming the shortcomings of the existing technology.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0005] This utility model embodiment provides an intelligent closed-loop control fully automated tensile testing equipment, characterized in that it includes:

[0006] The sample storage module is used to place the samples. Each sample is equipped with a unique identification mark. The samples include longitudinal arc-shaped samples and transverse arc-shaped samples.

[0007] An identifier recognition module, used to identify the identifier;

[0008] The feature measurement module is used to measure at least one of the following feature parameters: the weight parameter of the sample, the length parameter of the sample, the width parameter of the longitudinal arc-shaped sample, the thickness parameter of the longitudinal arc-shaped sample, the width parameter of the transverse arc-shaped sample, and the thickness parameter of the transverse arc-shaped sample.

[0009] At least one mechanical property testing module, used for at least the following purposes: conducting mechanical property tests on specimens, measuring the elongation and reduction of area parameters of specimens during and after the mechanical property tests, and determining the fracture location of specimens that fracture after the mechanical property tests.

[0010] The sample transfer module is used to grab and release the sample, and to transfer the sample to any of the following workstations: sample storage module, identification module, feature measurement module, and mechanical property testing module.

[0011] The data acquisition and analysis module, together with the identification module, the feature measurement module, and the mechanical performance testing module, is used at least to acquire, analyze, and store the feature parameters measured by the feature measurement module and the test results of the mechanical performance testing module;

[0012] The control module is connected to the identification module, the feature measurement module, the mechanical property testing module, the sample transfer module, and the data acquisition and analysis module, and is used to adjust the working status and working parameters of the identification module, the feature measurement module, the mechanical property testing module, the sample transfer module, and the data acquisition and analysis module.

[0013] Furthermore, the identification module is fixedly installed at a fixed position on the sample storage module.

[0014] Furthermore, the sample storage module includes a sample rack, and the identification module is fixedly installed on the top of the sample rack.

[0015] Furthermore, the identification mark includes a barcode, an electronic identification tag, or an optical character recognition mark, and the identification module includes an optical barcode scanner, an RFID reader / writer, or an optical character recognition device.

[0016] Furthermore, the feature measurement module includes at least one of a weighing and length measuring mechanism, a laser light curtain measuring mechanism, and a grating cross-section measuring mechanism. The weighing and length measuring mechanism is used to measure and obtain the weight and length parameters of the sample. The laser light curtain measuring mechanism is used to measure and obtain the width parameter of the longitudinal arc-shaped sample. The grating cross-section measuring mechanism is used to measure and obtain the width parameter, thickness parameter, and thickness parameter of the transverse arc-shaped sample. The sample transfer module is also used to transfer the sample to the station where any one of the weighing and length measuring mechanism, the laser light curtain measuring mechanism, and the grating cross-section measuring mechanism is located.

[0017] Furthermore, the laser light curtain measurement mechanism includes a laser emitting component, a laser receiving component, and a data processing component. The laser receiving component is connected to the data processing component. The laser emitting component and the laser receiving component are spaced apart along the z-axis of a three-dimensional coordinate system, forming a measurement station for a longitudinally curved sample. The laser emitting component is used to generate a two-dimensional parallel laser light curtain covering the maximum theoretical width of the longitudinally curved sample. The laser receiving component is used to receive laser light that is not blocked by the longitudinally curved sample in real time and convert the optical signal into an electrical signal. The data processing component is used to receive the electrical signal output by the laser receiving component and calculate the width of the longitudinally curved sample accordingly. The axial direction of the longitudinally curved sample located at the measurement station is parallel to the z-axis.

[0018] Furthermore, the mechanical property testing module includes a universal testing machine, a video extensometer, and a visual discrimination device. The universal testing machine is used to perform mechanical property tests on the specimen. The video extensometer is used to measure the elongation and reduction of area parameters of the specimen during and after the mechanical property test. The visual discrimination device is used to determine the fracture location of the specimen after the mechanical property test.

[0019] Furthermore, the video extensometer is located on one side of the specimen fixing position of the universal testing machine, the camera of the video extensometer is used to collect the deformation of the specimen along the width direction, and the optical axis of the video extensometer camera forms an angle of 45° with the horizontal plane.

[0020] Furthermore, the sample storage module, the identification module, the feature measurement module, and the mechanical property testing module are arranged around the sample transfer module.

[0021] Furthermore, the sample transfer module includes a transfer robot.

[0022] In a more specific implementation, the intelligent closed-loop control fully automated tensile testing equipment further includes: a protective enclosure, which encloses and forms an independent workspace, and the sample storage module, the identification module, the feature measurement module, the mechanical property testing module, and the sample transfer module are set within the workspace.

[0023] Furthermore, the sample storage module is fixedly installed on the protective enclosure;

[0024] Furthermore, the protective fence is equipped with observation windows.

[0025] In a more specific implementation, the intelligent closed-loop control fully automated tensile testing equipment further includes: a sample classification and storage module, which includes at least two sample containers, wherein at least one sample container is used to hold samples that have passed the mechanical property testing module test, and at least another sample container is used to hold samples that have failed the mechanical property testing module test.

[0026] Compared with the prior art, the advantages of this utility model include: the intelligent closed-loop control tensile testing fully automated equipment provided by the embodiments of this utility model can realize fully automated testing operations without human intervention, which significantly improves the testing efficiency, greatly reduces labor costs, effectively avoids human operation errors, and provides strong support for large-scale, standardized material testing. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of an intelligent closed-loop control fully automated tensile testing equipment provided in a typical embodiment of this utility model.

[0029] Figure 2 This is a schematic diagram of the planar structure of an intelligent closed-loop control fully automated tensile testing equipment provided in a typical embodiment of this utility model.

[0030] Figure 3 This is a schematic diagram of the laser light curtain measuring mechanism in an intelligent closed-loop control fully automated tensile testing equipment provided in a typical embodiment of this utility model. Detailed Implementation

[0031] In view of the shortcomings of the prior art, the inventors of this case, through long-term research and extensive practice, have proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and principles in conjunction with the accompanying drawings and specific implementation examples. Unless otherwise specified, the robot, controller and its CNC program, data calculation and processing model, barcode scanner, laser weighing and length measuring platform, grating cross-section measuring platform, video extensometer, sample state visual discrimination device, etc., involved in the embodiments of this utility model are all known in the art and are not specifically limited here.

[0032] In a more typical implementation scheme, please refer to Figure 1 A fully automated intelligent closed-loop control tensile testing equipment includes a sample storage module 100, an identification module 200, a feature measurement module 300, two mechanical property testing modules 400, a sample transfer module 500, a data acquisition and analysis module 600, and a control module 700. The data acquisition and analysis module 600 is communicatively connected to the identification module 200, the feature measurement module 300, and the mechanical property testing module 400. The control module 700 is communicatively connected to the identification module 200, the feature measurement module 300, the mechanical property testing module 400, the sample transfer module 500, and the data acquisition and analysis module 600.

[0033] Specifically, the sample storage module 100 is used to place samples, each sample having a unique identification mark. Samples include longitudinally curved samples and transversely curved samples. The identification module 200 is used to identify the identification mark and obtain the sample information it contains. The feature measurement module 300 is used to measure at least one of the following feature parameters: sample weight, sample length, width of the longitudinally curved sample, thickness of the longitudinally curved sample, width of the transversely curved sample, and thickness of the transversely curved sample. The mechanical property testing module 400 is used to perform mechanical property tests on the samples, measure the elongation and reduction of area parameters of the samples during and after the mechanical property tests, and determine whether the samples have undergone mechanical property testing. The fracture location after the performance test is determined by the sample transfer module 500, which is used to grab and release the sample, and transfer the sample to any of the following workstations: sample storage module 100, identification module 200, feature measurement module 300, and mechanical performance testing module 400. The data acquisition and analysis module 600 is used to collect, analyze, and store the feature parameters measured by the feature measurement module 300 and the test results of the mechanical performance testing module 400. The control module 700 is used to adjust the working status and parameters of the identification module 200, the feature measurement module 300, the mechanical performance testing module 400, the sample transfer module 500, and the data acquisition and analysis module 600.

[0034] Specifically, in addition to longitudinal and transverse arc-shaped specimens, the specimens can also be specimens with other structures. For example, the specimens can be any of the following: reinforcing bars, welded reinforcing bars, mechanical connectors for reinforcing bars, hollow anchor rods, steel pipes, and steel plates. The identification mark contains the specimen information, which may include the specimen's name, code, and other information.

[0035] Specifically, the identification module 200 is matched with the identification mark, which includes barcodes, electronic identification tags, or optical character recognition marks, etc. The identification module 200 includes optical barcode scanners, radio frequency identification readers, or optical character recognition devices, etc. For example, when the identification mark is an RFID tag, the identification module 200 uses a radio frequency identification (RFID) reader.

[0036] Specifically, the sample storage module 100 includes a sample rack with multiple open storage spaces for accommodating samples. Specifically, the sample rack can be fixed in position, such as being fixed to the base, or it can be movable, i.e., equipped with casters, etc. Specifically, the specific structure of the sample rack can be a cabinet or similar structure known in the art, and its specific structure is not limited here. Specifically, to improve the efficiency and convenience of the sample transfer module 500 in grasping samples for information identification, the identification module 200 is fixedly mounted on the sample rack, preferably on the top of the sample rack. After the sample transfer module 500 grasps a sample located on the sample rack, it can directly carry the sample so that the identification module 200 can scan and identify the identification mark on the sample.

[0037] Specifically, the feature measurement module 300 includes a weighing and length measuring mechanism 310, a grating cross-section measuring mechanism 320, and a laser light curtain measuring mechanism 330. The weighing and length measuring mechanism 310 is used to measure and obtain the weight and length parameters of the sample. The laser light curtain measuring mechanism 330 is used to measure and obtain the width parameter of the longitudinal arc-shaped sample. The grating cross-section measuring mechanism 320 is used to measure and obtain the width, thickness, and longitudinal arc-shaped sample. The sample transfer module 500 is also used to transfer the sample to the station of any one of the weighing and length measuring mechanism 310, the laser light curtain measuring mechanism 330, and the grating cross-section measuring mechanism 320.

[0038] Specifically, the weighing and length measuring mechanism 310 used in this utility model can be a laser-based load-bearing length measuring platform as known in the art. A conventional laser-based load-bearing length measuring platform mainly includes an electrical cabinet, a standard rod, a length measuring frame, a laser sensor, and a weighing mechanism. Its specific usage methods and working principles are known in the art and are not limited here. Similarly, the grating cross-section measuring mechanism 320 used in this utility model can be a grating cross-section measuring table as known in the art. A conventional grating cross-section measuring table mainly includes a clamping cylinder, an end cylinder, and a grating ruler. Its specific usage methods and working principles are known in the art and are not limited here.

[0039] Specifically, unlike conventional laser ranging mechanisms, the laser light curtain measuring mechanism 330 used in this invention forms a laser light curtain and illuminates the sample with the laser light curtain, thereby obtaining multiple width values ​​of the longitudinal arc-shaped sample. The average value of the multiple width values ​​is then used as the actual width of the longitudinal arc-shaped sample. Specifically, the laser light curtain measurement mechanism 330 includes a laser emitting component 331, a laser receiving component 332, and a data processing component 333. The laser receiving component 332 is connected to the data processing component 333. The laser emitting component 331 and the laser receiving component 332 are spaced apart along the z-axis of a three-dimensional coordinate system, forming a measurement station for a longitudinally curved sample. The laser emitting component 331 generates a laser light curtain covering the maximum theoretical width of the longitudinally curved sample. The laser receiving component 332 receives laser light not blocked by the longitudinally curved sample in real time and converts the optical signal into an electrical signal. The data processing component 333 receives the electrical signal output by the laser receiving component 332 and calculates the width of the longitudinally curved sample accordingly. The axial direction of the longitudinally curved sample at the measurement station is parallel to the z-axis. Specifically, the laser light curtain can be a two-dimensional parallel light curtain or a three-dimensional light curtain. It should be noted that the calculation model used by the data processing component 333 is not the subject matter of the utility model. The calculation model can be self-designed or known in the field, and is not limited here. Of course, the data processing component 333 in the laser light curtain measuring mechanism 330 can also be integrated with the data acquisition and analysis module 600, that is, as a functional unit of the data acquisition and analysis module 600.

[0040] Specifically, this invention can not only use multiple lasers to simultaneously emit multiple parallel laser beams to obtain a laser light curtain, but also use a single laser in conjunction with an optical path assembly. Specifically, the laser emitting assembly 331 includes a single laser, a rotating prism, and a collimating lens. The rotating prism can rotate around its own axis. The laser emits a static laser beam, which is reflected by the rotating prism and enters the collimating lens, forming a moving parallel beam. This moving parallel beam forms the laser light curtain. It should be noted that the rotating prism can be formed by assembling a rotating drive motor with the prism, which is driven to rotate by the motor. The prism can be a hexagonal prism or a multi-prism, etc. The prism and collimating lens are conventional optical components and will not be described in detail here.

[0041] Specifically, the laser receiving component 332 used in this invention may include a focusing lens and a phototube. The area of ​​the focusing lens and the receiving end face are the same, or they can be understood as the same entity. The focusing lens focuses the unobstructed portion of the laser light curtain onto the phototube, and the phototube generates a corresponding dark level as the aforementioned electrical signal. Furthermore, the data processing module's data processing and calculation model is not an improvement to the product structure / construction, and therefore will not be described. Those skilled in the art can perform calculations based on existing technology. It should be noted that during measurement, the axial direction of the arc-shaped sample is parallel to the z-axis. When the laser light curtain illuminates the arc-shaped sample, multiple width values ​​between the two sides of the arc-shaped sample along the width direction can be obtained. By averaging these multiple width values ​​and using the calculated average as the width of the arc-shaped sample, the obtained width value is closer to the true width value of the central region of the arc-shaped sample. The laser emitting component 331 and the laser receiving component may also be equipped with power connectors, data connectors, etc., to achieve power supply and data export, etc. These are known or easily implemented in the art, and are not specifically limited here. Of course, the laser light curtain measuring mechanism 330 may also include a clamp 334 for fixing, gripping and releasing the sample, etc.

[0042] Specifically, the two mechanical property testing modules 400 have basically the same structural composition. Each module includes a universal testing machine 410, a video extensometer 420, and a visual discrimination device. The universal testing machine 410 is used to perform mechanical property tests on the specimen. The video extensometer 420 is used to measure the elongation and reduction of area parameters of the specimen during and after the mechanical property test. The visual discrimination device is used to determine the fracture location of the specimen after the mechanical property test. The video extensometer 420 is located on one side of the specimen fixing position of the universal testing machine 410. The camera of the video extensometer 420 is used to collect the deformation of the specimen along the width direction, and the optical axis of the camera of the video extensometer 420 forms a 45° angle with the horizontal plane. It should be noted that the universal testing machine 410, video extensometer 420, and visual discrimination device used in this invention are all known in the art, and their specific equipment structures, models, and usage methods are not limited here. Additionally, it should be noted that the maximum load-bearing capacity of the universal testing machine 410 included in the two mechanical performance testing modules 400 is preferably different. For example, the universal testing machines 410 included in the two mechanical performance testing modules 400 are a 100t electronic universal testing machine 410 and a 30t electronic universal testing machine 410, respectively. The video extensometer 420 and visual discrimination device included in the two mechanical performance testing modules 400 can be the same. The 100t electronic universal testing machine is used to complete the mechanical performance tests of samples such as reinforcing bars, welded reinforcing bar structural components, mechanically connected reinforcing bar structural components, and hollow anchor rods, while the 30t electronic universal testing machine is used to complete the mechanical performance tests of samples such as steel pipes and steel plates.

[0043] Specifically, in order to improve the working efficiency of the sample transfer module 500, the sample storage module 100, the identification module 200, the feature measurement module 300, and the mechanical property testing module 400 are arranged around the sample transfer module 500. Specifically, the sample transfer module 500 can be a transfer robot. The structure of the transfer robot can be known in the art, as long as it can achieve the above functions. For example, the transfer robot can be an ABB robot, etc.

[0044] Specifically, the data acquisition and analysis module 600 and the control module 700 used in this utility model can both be known in the field. The structure of the data acquisition and analysis module 600 and the data processing and calculation model it adopts can also be purchased commercially or designed by oneself. The CNC program adopted by the control module 700 can also be obtained commercially. For example, the data acquisition and analysis module 600 and the control module 700 can both be integrated into a computer.

[0045] Specifically, to improve the safety of the working environment of the intelligent closed-loop controlled fully automated tensile testing equipment and reduce external interference, the equipment also includes a protective enclosure 900. This enclosure forms an independent working space, within which the sample storage module 100, the identification module 200, the feature measurement module 300, the mechanical property testing module 400, and the sample transfer module 500 are located. When a fixed sample rack is used, it can be fixedly mounted on the protective enclosure 900. To monitor the operation of the equipment, the protective enclosure 900 may include observation windows. Specifically, the protective enclosure 900 can be an integrated or modular structure; its specific structural form can adopt various forms known in the art, which will not be elaborated upon here.

[0046] Specifically, the intelligent closed-loop control fully automated tensile testing equipment may further include a sample classification and storage module 800. This module 800 includes at least two sample containers, where at least one container holds samples that pass the test conducted by the mechanical property testing module 400, and at least the other container holds samples that fail the test conducted by the mechanical property testing module 400. For example, the sample container may be a recycling cart, etc.

[0047] This utility model provides an intelligent closed-loop control fully automated tensile testing equipment that enables fully automated testing without human intervention, significantly improving testing efficiency while greatly reducing labor costs and effectively avoiding human error, thus providing strong support for large-scale, standardized material testing.

[0048] This utility model provides an intelligent closed-loop control fully automated tensile testing equipment, which aims to automate the entire tensile testing process. Through the coordinated operation of multiple modules such as the sample storage module, sample transfer module, feature measurement module, and tensile testing module, it achieves fully automated testing operations without human intervention, significantly improving testing efficiency, greatly reducing labor costs, effectively avoiding human error, and providing strong support for large-scale, standardized material testing.

[0049] This utility model provides an intelligent closed-loop control fully automated tensile testing equipment that addresses the challenges of data collaboration and interaction in traditional tensile testing machines. This equipment, with its data acquisition and analysis module, can collect multi-source data such as force, displacement, and deformation in real time. Through intelligent algorithms, it performs deep fusion and interactive analysis of the data, transforming scattered data into systematic and intuitive performance parameters and variation curves. This not only facilitates researchers in quickly obtaining key information about material properties but also allows for in-depth analysis of the material's performance characteristics and variation patterns during the tensile process through the constitutive correlation features of the data, providing a scientific basis for material research and optimization.

[0050] To ensure complete traceability of the testing process, this utility model provides an intelligent closed-loop control fully automated tensile testing equipment with a built-in data acquisition and analysis module. This module can monitor and collect data in real time on the setting of the test rate, the measurement of the specimen size and weight, the collection and analysis of test results, and the operation steps of the entire test process. This allows researchers and quality control managers to trace the data at any time, effectively improving the credibility and authority of the test data.

[0051] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fully automated equipment for intelligent closed-loop control of tensile testing, characterized in that, include: The sample storage module is used to place the samples. Each sample is equipped with a unique identification mark. The samples include longitudinal arc-shaped samples and transverse arc-shaped samples. An identifier recognition module, used to identify the identifier; The feature measurement module is used to measure at least one of the following feature parameters: the weight parameter of the sample, the length parameter of the sample, the width parameter of the longitudinal arc-shaped sample, the thickness parameter of the longitudinal arc-shaped sample, the width parameter of the transverse arc-shaped sample, and the thickness parameter of the transverse arc-shaped sample. At least one mechanical property testing module, used for at least the following purposes: conducting mechanical property tests on specimens, measuring the elongation and reduction of area parameters of specimens during and after the mechanical property tests, and determining the fracture location of specimens that fracture after the mechanical property tests. The sample transfer module is used to grab and release the sample, and to transfer the sample to any of the following workstations: sample storage module, identification module, feature measurement module, and mechanical property testing module. The data acquisition and analysis module, together with the identification module, the feature measurement module, and the mechanical performance testing module, is used at least to acquire, analyze, and store the feature parameters measured by the feature measurement module and the test results of the mechanical performance testing module; The control module is connected to the identification module, the feature measurement module, the mechanical property testing module, the sample transfer module, and the data acquisition and analysis module, and is used to adjust the working status and working parameters of the identification module, the feature measurement module, the mechanical property testing module, the sample transfer module, and the data acquisition and analysis module.

2. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1, characterized in that: The identification module is fixedly installed at a fixed position on the sample storage module.

3. The intelligent closed-loop control fully automated tensile testing equipment according to claim 2, characterized in that: The sample storage module includes a sample rack, and the identification module is fixedly installed on the top of the sample rack.

4. The intelligent closed-loop control fully automated tensile testing equipment according to claim 2, characterized in that: The identification mark includes a barcode, electronic identification tag, or optical character recognition mark, and the identification module includes an optical barcode scanner, radio frequency identification reader, or optical character recognition device.

5. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1, characterized in that: The feature measurement module includes at least one of a weighing and length measuring mechanism, a laser light curtain measuring mechanism, and a grating cross-section measuring mechanism. The weighing and length measuring mechanism is used to measure and obtain the weight and length parameters of the sample. The laser light curtain measuring mechanism is used to measure and obtain the width parameter of the longitudinal arc-shaped sample. The grating cross-section measuring mechanism is used to measure and obtain the width parameter, thickness parameter, and thickness parameter of the transverse arc-shaped sample. The sample transfer module is also used to transfer the sample to the station where any one of the weighing and length measuring mechanism, the laser light curtain measuring mechanism, and the grating cross-section measuring mechanism is located.

6. The intelligent closed-loop control fully automated tensile testing equipment according to claim 5, characterized in that: The laser light curtain measurement mechanism includes a laser emitting component, a laser receiving component, and a data processing component. The laser receiving component is connected to the data processing component. The laser emitting component and the laser receiving component are spaced apart along the z-axis of a three-dimensional coordinate system, forming a measurement station for a longitudinally curved sample. The laser emitting component generates a two-dimensional parallel laser light curtain covering the maximum theoretical width of the longitudinally curved sample. The laser receiving component receives laser light that is not blocked by the longitudinally curved sample in real time and converts the optical signal into an electrical signal. The data processing component receives the electrical signal output by the laser receiving component and calculates the width of the longitudinally curved sample accordingly. The axial direction of the longitudinally curved sample located at the measurement station is parallel to the z-axis.

7. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1, characterized in that: The mechanical property testing module includes a universal testing machine, a video extensometer, and a visual discrimination device. The universal testing machine is used to perform mechanical property tests on the specimen. The video extensometer is used to measure the elongation and reduction of area parameters of the specimen during and after the mechanical property test. The visual discrimination device is used to determine the fracture location of the specimen after the mechanical property test.

8. The intelligent closed-loop control fully automated tensile testing equipment according to claim 7, characterized in that: The video extensometer is located on one side of the specimen fixing position of the universal testing machine. The camera of the video extensometer is used to collect the deformation of the specimen along the width direction. Furthermore, the optical axis of the camera of the video extensometer forms an angle of 45° with the horizontal plane.

9. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1, characterized in that: The sample storage module, the identification module, the feature measurement module, and the mechanical property testing module are arranged around the sample transfer module.

10. The intelligent closed-loop control fully automated tensile testing equipment according to claim 9, characterized in that: The sample transfer module includes a transfer robot.

11. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1 or 2, characterized in that, Also includes: The protective enclosure forms an independent workspace, within which the sample storage module, the identification module, the feature measurement module, the mechanical property testing module, and the sample transfer module are located.

12. The intelligent closed-loop control fully automated tensile testing equipment according to claim 11, characterized in that: The sample storage module is fixedly installed on the protective enclosure.

13. The intelligent closed-loop control fully automated tensile testing equipment according to claim 11, characterized in that: The protective fence is equipped with observation windows.

14. The intelligent closed-loop control fully automated tensile testing equipment according to claim 1, characterized in that, Also includes: The sample classification and storage module includes at least two sample containers, wherein at least one sample container is used to hold samples that have passed the mechanical property test module, and at least another sample container is used to hold samples that have failed the mechanical property test module.

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