In-situ mechanical property detection equipment

Abstract

The invention relates to the technical field of detection equipment, and discloses in-situ mechanical property detection equipment which comprises a detection equipment body, and the detection equipment comprises a portable mechanical property tester, a coordinate sliding block, a connecting piece, a workbench, a transition plate, a stretching electric cylinder, a stretching protection cover, a heat dissipation protection cabinet, a PLC control module, a pull disc, a locking handle and other assemblies. According to the in-situ mechanical property detection equipment, displacement data and various parameters are provided through the torque sensor, the pressure sensor, the displacement sensor, the tension sensor and the displacement sensor to control the deformation quantity, lifting deformation force is provided through the electric cylinder and the motor, cleaning and maintenance are convenient, a tension value or a displacement value can be preset through the PLC control module, and the detection precision is improved. According to the invention, the detection device can detect the in-situ test of various steel structures of the equipment main body, can compositely realize the deformation of pulling, twisting and bending, and the test device of the detection equipment main body can move in the X direction and the Y direction and is locked by the slide way locking handle.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to an in-situ mechanical property testing device. Background Technology

[0002] Some metal structural components require testing of the mechanical properties of their internal metal components, or when designing metal structural components, it is necessary to clarify the changes in the mechanical properties of some metal components when subjected to certain tensile forces, torsion, and bending to produce certain deformations, so as to better complete the structural design. For this purpose, testing devices have been developed. In conjunction with portable mechanical property testing instruments, the above tasks can be accomplished. During testing, test specimens are made according to the actual use of the metal components and stretched, bent, and torsioned to the actual deformation required for testing. Then, the mechanical properties are tested by a portable mechanical property testing instrument fixed above the device.

[0003] However, existing in-situ mechanical performance testing equipment still has the following shortcomings: First, existing in-situ mechanical performance testing equipment generally uses simulation software for analysis, and the analysis results often differ greatly from the actual situation. Second, when it is necessary to understand the actual stress condition of structural components that have been used for a period of time, actual measurement is usually not possible. Traditional methods can hardly measure the actual mechanical performance parameters of steel structures, so mechanical testing of actual components cannot be performed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an in-situ mechanical property testing device. This device offers the advantages of easily measuring the true mechanical properties of metallic materials and ensuring testing under various in-situ working conditions. It solves the following deficiencies of existing in-situ mechanical property testing devices: First, existing devices generally use simulation software for analysis, and the analysis results often differ significantly from the actual situation. Second, when it is necessary to understand the actual stress conditions of structural components after a period of use, actual measurement is usually not possible. Traditional methods can hardly measure the actual mechanical property parameters of steel structures, thus preventing the mechanical testing of actual components.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives of facilitating the measurement of the true mechanical properties of metallic materials and ensuring testing under various in-situ working conditions, the present invention provides the following technical solution: an in-situ mechanical property testing device, comprising a testing device body, the testing device including a portable mechanical property tester, a coordinate slider, a connector, a worktable, a transition plate, a tensile electric cylinder, a tensile protective cover, a heat dissipation protection cabinet, a PLC control module, a pull plate, a locking handle, a pin, a bending electric cylinder, a torque sensor, a torsion motor, a torsion spindle, a motor protective cover, a guide column, a specimen, a motor bracket, a bearing cover, a pressure plate seat, a pressure plate body, and a key sleeve;

[0008] The portable mechanical property tester is used in conjunction with various indenters, such as spherical indenters, Vickers indenters, and Knoop indenters, to perform various mechanical property tests on the specimens.

[0009] The electric tension cylinder has built-in force and displacement sensors to transmit the force and displacement to the PLC control module for precise control of the force and displacement.

[0010] The electric bending cylinder is used to bend the specimen. It has built-in pressure and displacement sensors and can feed back the pressure and displacement to the PLC control module in real time.

[0011] The torque sensor is used to transmit the torque output by the motor to the PLC control module in real time.

[0012] Preferably, a workbench is bolted to the top of the heat dissipation protection cabinet, and a coordinate slider is bolted to the workbench.

[0013] Preferably, the left and right sides of the coordinate slider are connected by bolts, and the portable mechanical performance tester is installed on the top of the coordinate slider by bolts.

[0014] Preferably, the elongated hole below the stretch protective cover is fixed to the heat dissipation protection cabinet by bolts, and a transition plate is fixedly installed on the heat dissipation protection cabinet and located on the right side of the coordinate slider.

[0015] Preferably, the transition plate is equipped with a guide post connected to the right side of the workbench, and a pull plate is slidably connected to the outside of the guide post.

[0016] Preferably, a PLC control module is fixedly installed on the front right side of the heat dissipation protection cabinet, and a tensioning electric cylinder is bolted to the right side of the pull plate.

[0017] Preferably, a locking handle is connected between the connector and the workbench, and a bending electric cylinder is fixedly installed inside the heat dissipation protection cabinet.

[0018] Preferably, a motor bracket is fixedly installed on the heat dissipation protection cabinet, and a torsion motor is fixedly installed on the motor bracket. The front shaft of the torsion motor is connected to a torque sensor through a flat key sleeve.

[0019] Preferably, one end of the torque sensor is connected to the torsion motor, and the other end is connected to the torsion spindle. The torsion spindle is fixedly mounted on the worktable by bearing support, and a test piece is mounted on the other end.

[0020] Preferably, the specimen is fixed by a pin, a motor protective cover is fixedly installed on the outside of the torsion motor, a bearing cover is installed on the bearing by bolts, a pressure plate seat is connected to the bending electric cylinder, and two pressure plate bodies are installed on the pressure plate seat by bolts.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides an in-situ mechanical property testing device, which has the following features:

[0023] Beneficial effects:

[0024] 1. This in-situ mechanical property testing equipment uses torque sensors, pressure sensors, displacement sensors, and tensile sensors. The displacement sensors provide displacement data and various parameters to control the deformation. Electric cylinders and motors provide lifting force. It is easy to clean and maintain. The mechanical property parameters of the deformed specimen are tested using an indentation portable mechanical property tester. The PLC control module can preset tensile or displacement values ​​and lock the relevant settings. It can perform in-situ testing of various steel structures of the main body of the testing equipment, and can achieve combined tensile, torsional, and bending deformation. The testing device of the main body of the testing equipment can move in the X and Y directions and is locked by a slide locking handle.

[0025] 2. This in-situ mechanical property testing equipment has a composite function of testing specimens under torsion, tension, compression, and bending. It can test more complex steel structural components in situ. The slider on the main body of the testing equipment can be fixed at different positions on the worktable according to different torsion conditions of the specimen, so that the testing instrument is always perpendicular to the test point. This achieves the purpose of in-situ measurement of the mechanical properties of steel structural components by a portable mechanical property testing instrument equipped with a mechanical property testing indenter. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a half-sectional view of the overall structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the connection structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the main drive structure of the present invention;

[0030] Figure 5 This is a partial structural diagram of the present invention;

[0031] Figure 6 This is a schematic diagram of the support structure of the present invention.

[0032] In the diagram: 1. Portable mechanical property tester; 2. Coordinate slider; 3. Connector; 4. Worktable; 5. Transition plate; 6. Tension electric cylinder; 7. Tension protective cover; 8. Heat dissipation protection cabinet; 9. PLC control module; 10. Pull plate; 11. Locking handle; 12. Pin; 13. Bending electric cylinder; 14. Torque sensor; 15. Torsion motor; 16. Torsion spindle; 17. Motor protective cover; 18. Guide column; 19. Specimen; 20. Motor bracket; 21. Bearing cover; 22. Pressure plate seat; 23. Pressure plate body; 24. Flat key sleeve; 25. Main body of the testing equipment. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-6 An in-situ mechanical property testing device includes a testing device body 25, which includes a portable mechanical property tester 1, a coordinate slider 2, a connector 3, a worktable 4, a transition plate 5, a tensile electric cylinder 6, a tensile protective cover 7, a heat dissipation protection cabinet 8, a PLC control module 9, a pull plate 10, a locking handle 11, a pin 12, a bending electric cylinder 13, a torque sensor 14, a torsion motor 15, a torsion spindle 16, a motor protective cover 17, a guide post 18, a specimen 19, a motor bracket 20, a bearing cover 21, a pressure plate seat 22, a pressure plate body 23, and a flat key sleeve 24.

[0035] The portable mechanical property tester 1 is used to perform various mechanical property tests on the specimen 19 by installing various indenters, such as spherical indenters, Vickers indenters, and Knoop indenters.

[0036] The tension electric cylinder 6 has built-in tension and displacement sensors to transmit tension and displacement to the PLC control module 9, so as to accurately control the magnitude of tension and displacement.

[0037] The electric bending cylinder 13 is used to bend the specimen 19. It has built-in pressure and displacement sensors and can feed back the pressure and displacement to the PLC control module 9 in real time.

[0038] The torque sensor 14 is used to transmit the torque output by the motor to the PLC control module 9 in real time.

[0039] In the case implementation, a workbench 4 is bolted to the top of the heat dissipation protection cabinet 8. The workbench 4 is the main working space for testing. Its lower end is bolted to the heat dissipation protection cabinet 8 and the bending electric cylinder 13. The threaded holes distributed around the upper arc surface are used to fix the coordinate slider 2. The circular through hole in the middle is used to install the torsion motor. The circular holes on both sides are used to install and fix the guide post 18. The coordinate slider 2 is bolted to the top of the workbench 4. The threaded holes around the coordinate slider 2 are connected to the connecting piece 3 by threads. The connecting piece 3 is fixed to the workbench 4, allowing the instrument to test the specimen. The portable mechanical property tester 1 is used to measure mechanical properties and moves the X and Y coordinates during measurement to adjust the position of the test point. Connectors 3 are installed on the left and right sides of the coordinate slider 2 by bolts. Connectors 3 are connected to the coordinate slider 2 by two bolt holes on the side. The bolt holes are connected to the worktable 4 by the top and bottom through bolt holes and locked by the locking handle 11, so that the portable mechanical property tester 1 is locked in the working position. The locking position of the connector 3 can be adjusted around the worktable 4 to meet the measurement of different angles. The portable mechanical property tester 1 is installed on the top of the coordinate slider 2 by bolts.

[0040] In the implementation of the case, the elongated hole below the tension protective cover 7 is fixed to the heat dissipation protective cabinet 8 with bolts. The round hole and threaded hole in the middle of the heat dissipation protective cabinet 8 are used to provide an installation interface for the bending electric cylinder 13 and to enclose the bending electric cylinder 13 for protection. There are heat dissipation holes at the back of the heat dissipation protective cabinet 8 to dissipate heat from the electric cylinder 13. The threaded holes on both sides of the table are used to install the tension protective cover 7 and the torsion motor protective cover 17. The square hole on the cabinet door is used to install the PLC control module 9. A component is fixedly installed on the heat dissipation protective cabinet 8 and located on the right side of the coordinate slider 2. The transition plate 5 is connected to the workbench 4 via the guide post 18. The central round hole and threaded hole are used to install the tensioning electric cylinder. The guide post 18, which is connected to the right side of the workbench 4, is installed on the transition plate 5. The guide post 18 is installed between the workbench 4 and the transition plate 5. The pull plate 10 slides on it, which plays a guiding and anti-torsion role. The pull plate 10 is slidably connected to the outside of the guide post 18. The pull plate 10 is connected to the tensioning electric cylinder 6. The round holes on both sides cooperate with the guide post 18 and slide on the guide post 18. The central square hole is fixed to the specimen 19 by the pin 12.

[0041] In the case implementation, a PLC control module 9 is fixedly installed on the front right side of the heat dissipation protection cabinet 8. The PLC control module 10 is used to control the movement of each electric component and the setting of deformation parameters. PLC program control is adopted. A tension electric cylinder 6 is bolted to the right side of the pull plate 10. The front end of the electric cylinder 6 is bolted to the pull plate 10. The front square flange of the tension electric cylinder 6 is bolted to the transition plate 5. A locking handle 11 is connected between the connecting part 3 and the worktable 4. The locking handle 11 connects the connecting part 3 and the worktable 4 together to achieve the purpose of quick adjustment and connection locking. A bending electric cylinder 13 is fixedly installed inside the heat dissipation protection cabinet 8. The flange of the bending electric cylinder 13 is connected to the heat dissipation protection cabinet 8. The front cylinder head is connected to the pressure plate seat 22 to bend the specimen 19. The built-in pressure sensor and displacement sensor can feed back the pressure and displacement to the control system in real time.

[0042] In the case implementation, a motor bracket 20 is fixedly installed on the heat dissipation protection cabinet 8, and a torsion motor 15 is fixedly installed on the motor bracket 20. The front shaft of the torsion motor 15 is connected to the torque sensor 14 through a flat key sleeve 24. One end of the torque sensor 14 is connected to the torsion motor 15, and the other end is connected to the torsion spindle 16. The torque sensor 14 can transmit the torque output by the motor to the control system in real time. The torsion spindle 16 is fixedly installed on the workbench 4 by bearing support, and a test piece 19 is installed on the other side. For the structure to be tested in situ, the same material is used to process the test piece 19, which is installed on the workbench for deformation and operation, and then tested.

[0043] In the case implementation, specimen 19 is fixed by pin 12. A motor protective cover 17 is fixedly installed on the outside of the torsion motor 15. The function of the motor protective cover 17 is to protect the torsion motor 15 and the torque sensor 14. A bearing cover 21 is installed on the bearing by bolts. The function of the bearing cover 21 is to press the bearing tight. The central round hole and bolt holes are used to install the torque sensor 14. A pressure plate seat 22 is connected to the bending electric cylinder 13. Two oblong holes on the pressure plate seat 22 are used to install the pressure plate 23. The distance between the two pressure plates 23 can be adjusted within a certain range according to the test requirements. The pressure plate seat 22 has 8 bolt holes for connecting with the bending electric cylinder 13. Two pressure plate bodies 23 are installed on the pressure plate seat 22 by bolts. There are two pressure plates 23, which are symmetrically installed on the pressure plate seat 22 and connected by bolts. The upper part of the pressure plate 23 is circular.

[0044] When implementing this procedure, please follow these steps:

[0045] 1) During testing, first describe the case where the specimen deforms to the same extent as in its original position;

[0046] 2) Then fix the portable mechanical property testing instrument to the equipment;

[0047] 3) Then test the specimen for various mechanical properties.

[0048] In summary, this in-situ mechanical property testing equipment uses a torque sensor 14, a pressure sensor, a displacement sensor, and a tensile force sensor. The displacement sensor provides displacement data and various parameters to control the deformation. An electric cylinder and motor provide lifting force. It is easy to clean and maintain. The mechanical property parameters of the deformed specimen are tested using an indentation portable mechanical property tester. The PLC control module 9 can preset tensile or displacement values ​​and lock the relevant settings. It can perform in-situ testing of various steel structures in the main body 25 of the testing equipment, and can achieve combined tensile, torsional, and bending deformation. The testing device of the main body 25 of the testing equipment can move in the X and Y directions and is locked by the slide locking handle 11.

[0049] Furthermore, the main body 25 of the testing equipment has a composite function of torsion, tension, compression and bending of the specimen, which can be used for more complex steel structural parts in situ. The slider on the main body 25 of the testing equipment can be fixed in different positions on the worktable 4 according to different torsion conditions of the specimen, so that the testing instrument is always perpendicular to the test point, thereby realizing the purpose of in situ measurement of mechanical properties of steel structural parts by the portable mechanical property tester 1 equipped with mechanical property test head.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An in-situ mechanical property testing device, comprising a testing device body (25), characterized in that: The testing equipment (25) includes a portable mechanical performance tester (1), a coordinate slider (2), a connector (3), a worktable (4), a transition plate (5), a tension electric cylinder (6), a tension protective cover (7), a heat dissipation protection cabinet (8), a PLC control module (9), a pull plate (10), a locking handle (11), a pin (12), a bending electric cylinder (13), a torque sensor (14), a torsion motor (15), a torsion spindle (16), a motor protective cover (17), a guide column (18), a specimen (19), a motor bracket (20), a bearing cover (21), a pressure plate seat (22), a pressure plate body (23), and a flat key sleeve (24). The portable mechanical property tester (1) is used to perform various mechanical property tests on the specimen (19) by installing various indenters, such as spherical indenters, Vickers indenters, and Knoop indenters. The electric tension cylinder (6) has a built-in tension sensor and displacement sensor, which are used to transmit the tension and displacement to the PLC control module (9) to accurately control the magnitude of the tension and the size of the displacement. The electric bending cylinder (13) is used to bend the specimen (19) and has built-in pressure and displacement sensors, which can feed back the pressure and displacement to the PLC control module (9) in real time. The torque sensor (14) is used to transmit the torque output by the motor to the PLC control module (9) in real time.

2. The in-situ mechanical property testing device according to claim 1, characterized in that: The top of the heat dissipation protection cabinet (8) is bolted to a workbench (4), and a coordinate slider (2) is bolted to the workbench (4).

3. The in-situ mechanical property testing device according to claim 2, characterized in that: Connectors (3) are bolted to the left and right sides of the coordinate slider (2), and the portable mechanical performance tester (1) is bolted to the top of the coordinate slider (2).

4. The in-situ mechanical property testing device according to claim 3, characterized in that: The elongated hole below the stretch protective cover (7) is fixed to the heat dissipation protection cabinet (8) by bolts. A transition plate (5) is fixedly installed on the heat dissipation protection cabinet (8) and located on the right side of the coordinate slider (2).

5. The in-situ mechanical property testing device according to claim 4, characterized in that: The transition plate (5) is equipped with a guide post (18) connected to the right side of the workbench (4), and a pull plate (10) is slidably connected to the outside of the guide post (18).

6. The in-situ mechanical property testing device according to claim 5, characterized in that: A PLC control module (9) is fixedly installed on the front right side of the heat dissipation protection cabinet (8), and a tensioning electric cylinder (6) is connected to the right side of the pull plate (10) by bolts.

7. The in-situ mechanical property testing device according to claim 6, characterized in that: A locking handle (11) is connected between the connector (3) and the workbench (4), and a bending electric cylinder (13) is fixedly installed inside the heat dissipation protection cabinet (8).

8. The in-situ mechanical property testing device according to claim 7, characterized in that: A motor bracket (20) is fixedly installed on the heat dissipation protection cabinet (8), and a torsion motor (15) is fixedly installed on the motor bracket (20). The front shaft of the torsion motor (15) is connected to the torque sensor (14) through a flat key sleeve (24).

9. The in-situ mechanical property testing device according to claim 8, characterized in that: The torque sensor (14) is connected to the torsion motor (15) on one side and to the torsion spindle (16) on the other side. The torsion spindle (16) is fixedly mounted on the worktable (4) by bearing support, and a test piece (19) is mounted on the other side.

10. The in-situ mechanical property testing device according to claim 9, characterized in that: The test piece (19) is fixed by a pin (12). The external motor protective cover (17) is fixedly installed on the torsion motor (15). The bearing cover (21) is installed on the bearing by bolts. The bending electric cylinder (13) is connected to a pressure plate seat (22). Two pressure plate bodies (23) are installed on the pressure plate seat (22) by bolts.

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