Real-time temperature measuring device for material stretching and compression tests

Abstract

The utility model provides a real-time temperature measuring device for material stretching and compression tests, which comprises a clamping and fixing frame fixed on a test force loading head of a universal testing machine, a temperature measuring system is clamped at the suspended end of the clamping and fixing frame, and the tail end of the temperature measuring system is connected with a data acquisition system. The device greatly improves the accuracy and reliability of material mechanical testing, and has important significance on research, development and quality control of materials.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical experiment auxiliary equipment, in particular to a real-time temperature measuring device for material stretching and compression tests. Background Art

[0002] In the field of materials science and engineering technology, understanding the mechanical properties of materials under different temperature conditions is fundamental and critical. Especially for materials used under extreme temperature conditions, such as stainless steel, martensitic alloys, babbitt alloys, etc., their performance in low or high temperature environments is directly related to the application safety and life of the materials. Therefore, accurate high and low temperature tensile and compression mechanical tests are essential for material research and development, application development, and quality control.

[0003] The existing material mechanical properties testing methods mainly rely on placing the test sample in an environmental temperature chamber and controlling the temperature of the temperature chamber to simulate different working environments. However, this method has several significant shortcomings:

[0004] 1. Temperature transfer delay: There is a significant time delay between the actual temperature of the sample and the set temperature of the incubator. Especially in the rapid temperature change test, this delay will cause the sample temperature to deviate greatly from the expected temperature.

[0005] 2. Uneven temperature distribution: Since the heat exchange efficiency between the sample and the internal environment of the incubator is affected by many factors, such as the position and size of the sample and the air flow state inside the incubator, the temperature distribution on the surface and inside of the sample is uneven;

[0006] 3. Limitations of temperature monitoring: In traditional methods, temperature monitoring usually relies on temperature sensors inside the incubator rather than directly measuring the temperature of the sample itself. This cannot accurately reflect the actual temperature state of the sample. Especially in the testing of materials that are highly sensitive to temperature, this inaccuracy can lead to serious deviations in the results.

[0007] Therefore, there is an urgent need for a real-time temperature measurement device for material tension and compression tests to solve the above problems. Summary of the invention

[0008] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a real-time temperature measuring device for material tension and compression tests to solve the problems raised in the background technology.

[0009] In order to solve the above technical problems, the utility model adopts the following technical scheme: a real-time temperature measuring device for material tension and compression tests, comprising a clamping frame fixed on a test force loading head of a universal testing machine, a temperature measuring system being clamped at a suspended end of the clamping frame, and a tail end of the temperature measuring system being connected to a data acquisition system.

[0010] Preferably, the clamping fixing frame includes a first support rod, a second support rod and a rotating shaft connecting piece, one end of the first support rod and the second support rod are both provided with holes and connected through the rotating shaft connecting piece, and the other end of the second support rod is provided with a clamping head.

[0011] Preferably, the core component of the temperature measurement system is a thermocouple sensor, and the thermocouple sensor is arranged in the inner cavity of a hollow round-head copper tube.

[0012] Preferably, the round-head copper tube is made of high-quality heat-conducting material, and a lubricating film is provided on the surface of the round-head copper tube.

[0013] Preferably, the data acquisition system comprises a real-time temperature display and an external computer, one end of the real-time temperature display is connected to the tail end of the temperature measurement system, and the other end of the real-time temperature display is connected to the external computer.

[0014] The utility model has the following beneficial effects:

[0015] 1. Improve test accuracy: By directly measuring the real-time temperature of the sample, the high accuracy of the test data is ensured, making the performance evaluation of the material more reliable;

[0016] 2. Real-time data monitoring and recording: The device can provide real-time temperature data display and recording, which is not only convenient for monitoring the test process, but also convenient for subsequent data analysis;

[0017] 3. Strong adaptability: The device design of the present invention takes into account the testing requirements of samples of different materials, shapes and sizes, and has good adaptability and versatility;

[0018] 4. Easy operation and installation: The design of the device is simple and practical, easy to install and use on the existing universal testing machine, without complicated modification or special training. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the temperature measurement system structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping and fixing frame of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] See also Figures 1 to 3A real-time temperature measuring device for material tension and compression tests comprises a clamping frame 1 fixed on a test force loading head of a universal testing machine, a temperature measuring system 2 is clamped at a suspended end of the clamping frame 1, and a tail end of the temperature measuring system 2 is connected to a data acquisition system 3.

[0024] Preferably, the clamping fixture 1 comprises a first support rod 1.1, a second support rod 1.2 and a rotating shaft connector 1.3, wherein the first support rod 1.1 and the second support rod 1.2 are both provided with holes at one end and connected through the rotating shaft connector 1.3, and the second support rod 1.2 is provided with a clamping head 1.4 at the other end. The clamping fixture 1 can ensure stable contact between the temperature measurement component and the test sample, and will not be displaced due to the test force.

[0025] Preferably, the core component of the temperature measurement system 2 is a thermocouple sensor 2.1, and the thermocouple sensor 2.1 is arranged in the inner cavity of the hollow round-head copper tube 2.2.

[0026] Preferably, the round copper tube 2.2 is made of high-quality heat-conducting material, and a lubricating film 2.3 is provided on the surface of the round copper tube 2.2. The design of the lubricating film ensures good thermal contact with the sample and avoids mechanical damage to the sample or affecting its mechanical test state.

[0027] Preferably, the data acquisition system 3 includes a real-time temperature display 3.1 and an external computer 3.2, wherein one end of the real-time temperature display 3.1 is connected to the rear end of the temperature measurement system 2, and the other end of the real-time temperature display 3.1 is connected to the external computer 3.2. This part can display the temperature of the test sample in real time and can also record the temperature change data during the entire test process. By connecting with a computer or other intelligent device, it is convenient to export, analyze and store data for a long time.

[0028] The working principle of this embodiment is as follows:

[0029] When using the utility model, the utility model is placed in an environmental temperature box, the clamping fixture 1 is fixed on the test force loading head of the universal testing machine, the temperature measuring system 2 is fixed by the clamping head 1.3, the round copper tube 2.2 in the temperature measuring system 2 is in contact with the material to be tested, and the temperature change of the test sample is monitored and collected in real time through the data acquisition system 3.

[0030] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A real-time temperature measurement device for material tension and compression testing, comprising a clamping fixture (1) fixed to a test force loading head of a universal testing machine, characterized in that: The suspended end of the clamping and fixing frame (1) is clamped with a temperature measuring system (2), and the tail end of the temperature measuring system (2) is connected to a data acquisition system (3).

2. A real-time temperature measuring device for material tension and compression testing according to claim 1, characterized in that: The clamping fixing frame (1) comprises a first support rod (1.1), a second support rod (1.2) and a rotating shaft connecting piece (1.3); one end of the first support rod (1.1) and the second support rod (1.2) are both provided with holes and are connected via the rotating shaft connecting piece (1.3); the other end of the second support rod (1.2) is provided with a clamping head (1.4).

3. A real-time temperature measuring device for material tension and compression testing according to claim 1, characterized in that: The core component of the temperature measurement system (2) is a thermocouple sensor (2.1), and the thermocouple sensor (2.1) is arranged in the inner cavity of a hollow round-head copper tube (2.2).

4. A real-time temperature measuring device for material tension and compression testing according to claim 3, characterized in that: The round-head copper tube (2.2) is made of high-quality heat-conducting material, and a lubricating film (2.3) is provided on the surface of the round-head copper tube (2.2).

5. A real-time temperature measuring device for material tension and compression test according to claim 1, characterized in that: The data acquisition system (3) comprises a real-time temperature display (3.1) and an external computer (3.2); one end of the real-time temperature display (3.1) is connected to the rear end of the temperature measurement system (2), and the other end of the real-time temperature display (3.1) is connected to the external computer (3.2).

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