Mechanical property testing instrument

Abstract

The utility model provides a wireless mechanical property testing instrument, and belongs to the field of mechanical property testing. Comprising a fixing assembly, a pressurizing assembly and a data processing assembly, and the fixing assembly comprises a mounting plate, a supporting frame arranged on the upper surface of the mounting plate and a plurality of contact blocks arranged on the lower surface of the mounting plate; the plurality of contact blocks are used for being detachably and fixedly connected with an external to-be-tested piece; the pressurizing assembly is arranged on the fixing assembly and comprises a pressing head extending into the testing space and a servo motor used for driving the pressing head to ascend and descend in the testing space; the data processing assembly is arranged on the pressurizing assembly and comprises a pressure sensor, a displacement sensor and a control panel. The structure is more portable, and meanwhile the remote control function can be achieved.

Description

Technical Field

[0001] The present application relates to a testing instrument, and in particular to a mechanical property testing instrument. Background Art

[0002] Mechanical properties testing instrument is a physical properties testing instrument used in the field of materials science. It is mainly used to measure the mechanical properties of materials, such as stress and strain.

[0003] However, in the prior art, since the experimental data obtained by the experimental instrument needs to be transmitted to the processing instrument through a data line, and the processing instrument sends the experimental instructions and processes the data, the existing mechanical properties testing instruments are often large in size and inconvenient to carry. During the experiment, samples need to be taken to the laboratory for measurement, but some materials cannot be destroyed and are not convenient for sampling. In addition, some parts of the materials to be tested or the environment they are in are harsh, making it inconvenient for personnel to enter for a long time, resulting in difficulties in mechanical testing of these materials.

[0004] The patent with the publication number (CN218546328U) discloses a material mechanics detection device. A material mechanics detection device is disclosed, including a detection component; the detection component includes a frame, a cylinder is arranged on the top of the frame, and a push plate is slidably connected to the frame, the output end of the cylinder is fixedly connected to the top of the push plate, a lower pressure block is arranged at the bottom of the push plate, and a fixed block is symmetrically arranged at the top of the frame, and an adjustment component is arranged on the frame; the utility model has the advantage of adjustment. When in use, turn on the motor, so that the screw rotates and drives the second plate to slide up or down in the two slide grooves until it is adjusted appropriately, turn off the motor, and finally turn on the cylinder to detect materials with different toughness, so that the height of the two fixed blocks can be adjusted at the same time, which is suitable for a variety of materials with different toughness. It can achieve good detection effect, does not affect the normal detection of materials, and can ensure the accuracy of the detection data. However, this patent is large in size, requires sampling and detection, and cannot realize remote control function. Summary of the invention

[0005] The purpose of this application is to solve the problem in the prior art that mechanical properties testing instruments cannot be tested on-site and cannot be remotely controlled. Therefore, this application proposes a wireless mechanical properties testing instrument, including a fixing component, a pressurizing component and a data processing component;

[0006] The fixing assembly includes a mounting plate, a support frame arranged on the upper surface of the mounting plate, and a plurality of contact blocks arranged on the lower surface of the mounting plate;

[0007] A test space is provided at the center below the mounting plate, and the plurality of contact blocks are symmetrically arranged around the test space;

[0008] The plurality of contact blocks are used to be detachably fixedly connected to an external object to be tested;

[0009] The pressurizing assembly is arranged on the fixing assembly, and the pressurizing assembly comprises a pressing head extending into the testing space and a servo motor for driving the pressing head to rise and fall in the testing space;

[0010] The data processing component is arranged on the pressurizing component, and includes a pressure sensor, a displacement sensor and a control board; the pressure sensor is used to detect the pressure head stress, the displacement sensor is used to detect the pressure head displacement, and the control board detects the mechanical properties of the test piece through the pressure sensor and the displacement sensor.

[0011] In one embodiment, a communication module is connected to the control board, and the test data is transmitted externally through the communication module;

[0012] The control board controls the servo motor, and the remote device remotely controls the control board through the communication module.

[0013] With the above technical solution, the experimenter can use the remote device to control the control panel through the communication module, control the pressure head to press the test piece, collect the experimental data through the pressure sensor and displacement sensor, and transmit the experimental data to the remote device through the communication module. There is no need to use cumbersome wired connections, no need for manual control by the experimenter, which is convenient for conducting experiments in harsh environments, with greater flexibility and convenience; in addition, the experimenter can receive experimental data in real time and analyze the experiment through the remote device, which makes the experiment more efficient.

[0014] In one embodiment, the plurality of contact blocks are each provided with an electromagnet, and the fixing component can be detachably provided on the external magnetic test piece through the plurality of contact blocks, and the fixing component is provided with a switch of the electromagnet.

[0015] Using the above fixing method, the test instrument can be quickly installed by simply attaching the sample to be tested and turning on the electromagnet switch. The suction provided by the electromagnet can be evenly distributed around the test space, making it difficult for the mechanical properties test instrument to shake or detach.

[0016] In one embodiment, the pressurizing assembly further includes a reducer, and the servo motor drives the pressure head to rise and fall through the reducer;

[0017] The displacement sensor is arranged on the reducer; the pressure sensor is arranged at the rear end of the pressure head and rises and falls with the pressure head.

[0018] The displacement sensor of the above technical solution is connected to the output end of the servo motor, which can be used as a reducer to increase the torque while recording the rotation process, thereby obtaining the downward displacement of the pressure head. In addition, the pressure sensor is set at a position close to the pressure head, and rises and falls with the pressure head, making the pressure test data more accurate. This connection method has a simpler structure and more accurate measurement results. In addition, setting the encoder at the highest point can enhance the signal.

[0019] In one embodiment, the communication module is provided with a signal enhancement antenna, which can enhance the data transmission signal and increase the remote operation distance.

[0020] In one embodiment, a slider is slidably arranged on the contact surface between the contact block and the component to be tested, and the slider and the contact block together form an adjustable groove;

[0021] The contact block is provided with a screw rod threadedly connected thereto, one end of the screw rod is rotatably connected to the slider, and the size of the groove can be adjusted by rotating the screw rod.

[0022] The groove can make the fixing assembly more stably fixed on the tubular component to be tested, and the size of the groove can be adjusted by rotating the screw to be suitable for pipes of different sizes.

[0023] In one embodiment, a protective shell is provided on the support frame, and the protective shell is provided on the fixing component to wrap the pressurizing component and the data processing component.

[0024] The support frame more tightly fixes the servo motor on the fixing device, so that the pressure head is not easy to loosen during the process of lifting and lowering relative to the fixing device. Using a protective shell to wrap the fixing component and the pressurizing component can play a protective role and facilitate use in harsh environments.

[0025] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of a wireless mechanical properties testing instrument provided in an embodiment of the present application;

[0027] Figure 2 A front view of a wireless mechanical properties testing instrument provided in an embodiment of the present application;

[0028] Figure 3 A three-dimensional diagram of a wireless mechanical properties testing instrument with a housing provided in an embodiment of the present application;

[0029] Figure 4A front view of a wireless mechanical property testing instrument with a housing provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Fixing assembly; 13. Support frame; 14. Test space; 15. Contact block; 16. Mounting plate;

[0032] 2. Pressurizing component; 21. Press head; 22. Servo motor; 23. Reducer;

[0033] 3. Data processing component; 31. Pressure sensor; 32. Displacement sensor; 33. Control board; 34. Communication module;

[0034] 4. Protect the shell. DETAILED DESCRIPTION

[0035] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1-4 , Figure 1 A three-dimensional diagram of a wireless mechanical properties testing instrument provided in an embodiment of the present application; Figure 2 A front view of a wireless mechanical properties testing instrument provided in an embodiment of the present application; Figure 3 A three-dimensional diagram of a wireless mechanical properties testing instrument with a housing provided in an embodiment of the present application; Figure 4 A front view of a wireless mechanical property testing instrument with a housing provided in an embodiment of the present application.

[0042] like Figures 1 to 4 , a wireless mechanical properties testing instrument, comprising a fixing component 1, a pressurizing component 2 and a data processing component 3;

[0043] The fixing assembly 1 includes a mounting plate 16, a support frame 13 disposed on the upper surface of the mounting plate 16, and two contact blocks 15 disposed on the lower surface of the mounting plate 16;

[0044] A test space 14 is provided at the center below the mounting plate 16, and two contact blocks 15 are symmetrically arranged on both sides of the test space 14;

[0045] Electromagnets are disposed in the two contact blocks 15 , and the fixing assembly 1 can be detachably disposed on an external magnetic test object through the two contact blocks 15 .

[0046] The switch of the electromagnet is arranged on the fixing component 1 .

[0047] In one embodiment, the switch of the electromagnet can be controlled by the control board 33 .

[0048] In one embodiment, a slider is slidably disposed on the contact surface between the contact block 15 and the component to be tested, and the slider and the contact block 15 together form an adjustable groove;

[0049] A screw rod threadably connected to the contact block 15 is disposed inside the contact block 15 , one end of the screw rod is rotatably connected to the slider, and the size of the groove can be adjusted by rotating the screw rod.

[0050] One side of the component to be tested contacts the slider, and the other side of the component to be tested contacts the contact block 15. The slider and the contact block 15 form an adjustable groove. The experimenter adjusts the size of the groove by adjusting the distance between the slider and the contact block 15 to make it suitable for pipes of various sizes.

[0051] The pressurizing assembly 2 is disposed on the fixing assembly 1 , and the pressurizing assembly 2 includes a pressing head 21 extending into the test space 14 and a servo motor 22 for driving the pressing head 21 to rise and fall in the test space 14 ;

[0052] The servo motor 22 is fixedly mounted on the support frame 13 , and the pressure head 21 passes through the mounting plate 16 and is disposed in the testing space 14 .

[0053] The pressurizing assembly 2 further includes a reducer 23 , through which the pressure head 21 is driven to rise and fall; a displacement sensor 32 is disposed on the reducer 23 ; and a pressure sensor 31 is disposed at the rear end of the pressure head 21 , and rises and falls with the pressure head 21 .

[0054] The reducer 23 reduces the increased torque of the servo motor 22 and converts the rotational motion of the servo motor 22 into a lifting motion through the cooperation of the thread and the sleeve. The displacement sensor 32 detects the number of rotations of the output shaft of the servo motor 22 and converts it into a lifting height.

[0055] The data processing component 3 is arranged on the pressurizing component 2, and includes a pressure sensor 31, a displacement sensor 32 and a control board 33; the pressure sensor 31 is used to detect the stress of the pressure head 21, the displacement sensor 32 is used to detect the displacement of the pressure head 21, and the control board 33 detects the mechanical properties of the test piece through the pressure sensor 31 and the displacement sensor 32.

[0056] The control board 33 is connected to a communication module 34 and transmits test data to the outside through the communication module 34;

[0057] The control board 33 controls the servo motor 22 , and the remote device remotely controls the control board 33 via the communication module 34 .

[0058] The communication module 34 is fixed to the top of the servo motor 22 , and a signal enhancement antenna is disposed on the communication module 34 .

[0059] In one embodiment, a protective shell is provided on the support frame 13 , and the protective shell is provided on the fixing component 1 to wrap the pressurizing component 2 and the data processing component 3 .

[0060] In actual use, the staff adjusts the appropriate adjustable groove, places the device on the object to be tested stably, aligns the test space 14 with the position to be tested, turns on the magnetic switch 12, and the device is fixed on the specimen. Then, a smart device such as a mobile phone, tablet or remote control is used to set the experimental parameters through the communication module 34, and the servo motor 22 is controlled to rotate through the controller to press the pressure head 21 down. At the same time, the displacement sensor 32 and the pressure sensor 31 record the displacement and pressure data, and transmit the data to the remote device in real time.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical properties testing instrument, characterized in that: It includes a fixing component, a pressurizing component and a data processing component; The fixing assembly includes a mounting plate, a support frame arranged on the upper surface of the mounting plate, and a plurality of contact blocks arranged on the lower surface of the mounting plate; A test space is provided at the center below the mounting plate, and the plurality of contact blocks are symmetrically arranged around the test space; The plurality of contact blocks are used to be detachably fixedly connected to an external object to be tested; The pressurizing assembly is arranged on the fixing assembly, and the pressurizing assembly comprises a pressing head extending into the testing space and a servo motor for driving the pressing head to rise and fall in the testing space; The data processing component is arranged on the pressurizing component, and includes a pressure sensor, a displacement sensor and a control board; the pressure sensor is used to detect the pressure head stress, the displacement sensor is used to detect the pressure head displacement, and the control board detects the mechanical properties of the test piece through the pressure sensor and the displacement sensor.

2. A mechanical properties testing instrument as claimed in claim 1, characterized in that: The control board is connected to a communication module and transmits test data externally through the communication module; The control board controls the servo motor, and the remote device remotely controls the control board through the communication module.

3. A mechanical properties testing instrument as claimed in claim 1, characterized in that: Electromagnets are arranged in the plurality of contact blocks, and the fixing assembly can be detachably arranged on the external magnetic test piece through the plurality of contact blocks.

4. A mechanical properties testing instrument as claimed in claim 1, characterized in that: The servo motor is fixedly arranged on the support frame, and the pressure head passes through the mounting plate and is arranged in the test space.

5. A mechanical properties testing instrument as claimed in claim 1, characterized in that: The pressurizing assembly further includes a reducer, and the servo motor drives the pressure head to rise and fall through the reducer; The displacement sensor is arranged on the reducer; the pressure sensor is arranged at the rear end of the pressure head and rises and falls with the pressure head.

6. A mechanical properties testing instrument as claimed in claim 2, characterized in that: The communication module is arranged at the top of the servo motor, and a signal enhancement antenna is arranged on the communication module.

7. A mechanical properties testing instrument as claimed in claim 1, characterized in that: A slider is slidably arranged on the contact surface between the contact block and the component to be tested, and the slider and the contact block together form an adjustable groove; The contact block is provided with a screw rod threadedly connected thereto, one end of the screw rod is rotatably connected to the slider, and the size of the groove can be adjusted by rotating the screw rod.

8. A mechanical properties testing instrument as claimed in claim 1, characterized in that: The support frame is provided with a protective shell, which is arranged on the fixing component and wraps the pressurizing component and the data processing component.

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