CN214224724U

CN214224724U - Tension tester

Info

Publication number: CN214224724U
Application number: CN202022218157.5U
Authority: CN
Inventors: 张建亮; 王丽丽
Original assignee: Chongqing Yumicroelectronics Technology Research Institute Co ltd
Current assignee: Chongqing Yumicroelectronics Technology Research Institute Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-09-17
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a tensile testing machine, which comprises an upper seat (100), a base (200), light columns (501,502), an electric cylinder (103), an upper clamp (301), a lower clamp (302) and a sensor (400); the electric cylinder (103) is fixed on the upper seat bottom plate (104); the light columns (501,502) are used for supporting the whole testing machine; the side wall (101) of the shell of the upper seat is provided with a controller interface (102) which is externally connected with a controller (600) to realize the control of displacement and force in the stretching process; the controller (600) is connected with the upper computer (700) and can display, control or store signals of load, displacement, torque, rotation angle and the like in the test process in real time for subsequent processing.

Description

Tension tester

Technical Field

The utility model belongs to the technical field of mechanical test equipment application and specifically relates to a tensile testing machine is related to.

Background

The tensile testing machine is used for testing the mechanical properties and the fatigue life of various materials such as metal materials, non-metal materials, high polymer materials, biological materials and the like. At present, there are multiple tensile testing machines in the market, can be used for the test of material, and these testing machines are used for testing although result of use is good, and overall structure is complicated, and the use is loaded down with trivial details, and traditional testing machine precision is low simultaneously, and is bulky. With the development and progress of scientific research, a high-precision tensile testing machine is needed for the performance research of materials.

In view of the above technical problem, the present invention and embodiments thereof are provided.

Disclosure of Invention

A brief summary of the present disclosure will be given below to provide a basic understanding of some aspects of the present disclosure. It should be understood that this summary is not an exhaustive overview of the disclosure. It is not intended to identify key or critical elements of the disclosure or to delineate the scope of the disclosure. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

To above problem, the utility model discloses built a tensile testing machine, utilized high accuracy sensor and electronic jar, it is high to have a loading frequency, and response speed advantage such as fast can realize the test to metal material, non-metal material, macromolecular material and biomaterial.

The utility model provides a tensile testing machine, which mainly comprises an upper seat, a base, a light column, an electric cylinder, an upper clamp, a lower clamp and a sensor; the upper seat consists of a bottom plate and a shell; the base is composed of an upper plate, a lower plate, a support frame and a shell, and the support frame supports the upper plate and the lower plate; the light column is used for supporting the whole testing machine, penetrates through the upper plate of the base, and is fixed at the two ends of the upper plate of the upper base and the lower plate of the base respectively; the electric cylinder is fixed on the upper seat bottom plate, and a rotating shaft of the electric cylinder penetrates through the upper seat bottom plate to be connected with the connecting shaft; the upper clamp is connected with a rotating shaft of the electric cylinder through a connecting shaft; the sensor is positioned above the upper clamp, one end of the sensor is connected with the connecting shaft, and the other end of the sensor is connected with the upper clamp; the lower clamp supporting body is fixed on the upper plate of the base and connected with the lower clamp; the side wall of the shell of the upper seat is provided with a controller interface which is externally connected with a controller to realize the control of displacement and force in the stretching process; the controller is connected with the upper computer, and can display, control or store signals of load, displacement, torque, corner and the like in the test process in real time for subsequent processing.

Further, the electric cylinder is a core component of the testing machine and comprises a motor and a cylinder body, the motor and the cylinder body are installed in parallel, and the motor and the cylinder body are connected with a transmission screw rod of the electric cylinder through a synchronous belt and a synchronous belt wheel, so that the whole electric cylinder has high controllability and control precision.

And further, the upper clamp corresponds to the lower clamp, and the clamp is provided with a stretching clamp and a compressing clamp and is used for placing the material to be tested during stretching or compressing.

Further, the sensor is a tension and compression weighing sensor for measuring the force during tension or compression.

Further, a digital register is arranged in the controller and used for generating control waveforms, and triangular waves, sine waves, square waves, oblique waves and trapezoidal waves can be generated.

Furthermore, the upper computer is provided with test software, so that the waveform, the frequency, the amplitude and the mean value of a test can be conveniently set, and the functions of data display, drawing, storage, multifunctional software protection, sensor calibration and the like can be realized.

The utility model has the advantages that the tension tester adopts an electric cylinder, the main characteristic is high precision, the stroke, speed and thrust of the screw rod can realize high precision control, and the precision difference can be controlled at 0.01 mm; the maintenance cost of the electric cylinder is very low, only the lubricating system needs to be checked regularly, the time and the cost are saved, the box body is made of high-strength corrosion-resistant aluminum alloy materials, the dustproof sealing can be realized, and the operation safety is greatly improved.

Drawings

The above and other objects, features and advantages of the present disclosure will be more readily understood from the following description of the specific disclosure with reference to the accompanying drawings. The drawings are only for the purpose of illustrating the principles of the present disclosure. The dimensions and relative positioning of the elements in the figures are not necessarily drawn to scale. In the drawings: fig. 1 is a general structural view of a tensile testing machine according to an embodiment of the present invention;

fig. 2 is an internal three-dimensional structure diagram of a tensile testing machine according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.

It is to be understood that the features described and/or illustrated with respect to the other features may be combined with or substituted for the other features in the same or similar manner without departing from the spirit of the present disclosure.

The present disclosure has been described above with reference to the accompanying drawings, but it should be clear to a person skilled in the art that the description is illustrative and not limiting of the scope of the present disclosure. Various modifications and alterations of this disclosure will become apparent to those skilled in the art from the spirit and principles of this disclosure, and such modifications and alterations are also within the scope of this disclosure.

As shown in fig. 1 and 2, the utility model provides a tensile testing machine, which mainly comprises an upper seat (100), a base (200), light columns (501,502), an electric cylinder (103), an upper clamp (301), a lower clamp (302) and a sensor (400); the upper seat (100) consists of a bottom plate (104) and a shell (101); the base (200) consists of an upper plate (202), a lower plate (203), a support frame (204) and a shell (201), wherein the support frame (204) supports the upper plate (202) and the lower plate (203); the electric cylinder (103) is fixed on the upper seat bottom plate (104), and a rotating shaft of the electric cylinder (103) penetrates through the upper seat bottom plate (104) to be connected with the connecting shaft (105); the light columns (501,502) are used for supporting the whole testing machine, the light columns (501,502) penetrate through the upper plate (202) of the base, and two ends of the light columns are respectively fixed on the upper base bottom plate (104) and the lower base plate (203); the upper clamp (301) is connected with a rotating shaft of the electric cylinder (103) through a connecting shaft (105); the sensor (400) is positioned above the upper clamp (301), one end of the sensor is connected with the connecting shaft (105), and the other end of the sensor is connected with the upper clamp (301); the lower clamp supporting body (205) is fixed on the upper plate (202) of the base and is connected with the lower clamp (302); the side wall (101) of the shell of the upper seat is provided with a controller interface (102) which is externally connected with a controller (600) to realize the control of displacement and force in the stretching process; the controller (600) is connected with the upper computer (700) and can display, control or store signals of load, displacement, torque, rotation angle and the like in the test process in real time for subsequent processing.

Preferably, electronic jar (103) is the modularization product of servo motor and lead screw integrated design, converts servo motor's rotary motion into linear motion, simultaneously with the best advantage of servo motor: the method comprises the following steps of (1) accurate rotating speed control, accurate revolution control, accurate torque control converted into accurate speed control, accurate position control and accurate thrust control; the working principle is that the nut is converted into linear motion to realize reciprocating motion so as to complete the precise push-pull, closing and lifting control of the equipment.

Preferably, the controller (600) performs high-speed and high-precision closed-loop control on the axial direction to realize micro-force and micro-displacement measurement on a micro test piece; a digital register is arranged in the controller (600) and is used for generating control waveforms which can generate triangular waves, sine waves, square waves, oblique waves and trapezoidal waves; the upper computer (700) is provided with test software, various loading conditions such as waveform, frequency, amplitude, mean value and the like of a test can be set conveniently, and functions such as data display, drawing, storage, multifunctional software, software protection, calibration of a sensor and the like can be realized. By connecting the controller (600) with the upper computer (700), signals such as load, displacement, torque, corner and the like in the test process can be displayed, controlled or stored in real time on the upper computer for subsequent processing.

Preferably, the sensor (400) is a tension and compression load cell, designed for endurance, pressure and on-line applications, the sensor (400) has a very robust construction, is made of 17-4PH stainless steel, has external threads on both ends, and has a 10 foot length of 28AWG 4 core shielded PVC cable; the product had an excellent micro-design, 1.20 inches in height and 1.00 inches in diameter; can provide high accuracy and high stiffness for both tension and compression load cells with a non-linearity of 0.5% and a nominal deflection of 0.001 inches.

When the device is used specifically, a material to be tested is fixed on the upper clamp (301) and the lower clamp (302), the tensile test device, the controller (600) and the upper computer (700) are connected, software of the device and the upper computer is opened, corresponding parameters are set through a test software package of the software of the upper computer, the controller (600) executes a command of the software of the upper computer, the tensile test machine starts to work, the sensor (400) transmits corresponding values to the controller (600), and after the controller (600) processes data, corresponding test results are displayed on the software of the upper computer (700).

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. A tensile testing machine is characterized by comprising an upper seat, a base, a light column, an electric cylinder, an upper clamp, a lower clamp and a sensor; the upper seat consists of a bottom plate and a shell; the base is composed of an upper plate, a lower plate, a support frame and a shell, and the support frame supports the upper plate and the lower plate; the light column is used for supporting the whole testing machine, penetrates through the upper plate of the base, and is fixed at the two ends of the upper plate of the upper base and the lower plate of the base respectively; the electric cylinder is fixed on the upper seat bottom plate, and a rotating shaft of the electric cylinder penetrates through the upper seat bottom plate to be connected with the connecting shaft; the upper clamp is connected with a rotating shaft of the electric cylinder through a connecting shaft; the sensor is positioned above the upper clamp, one end of the sensor is connected with the connecting shaft, and the other end of the sensor is connected with the upper clamp; the lower clamp supporting body is fixed on the upper plate of the base and connected with the lower clamp; the side wall of the shell of the upper seat is provided with a controller interface which is externally connected with a controller to realize the control of displacement and force in the stretching process; the controller is connected with the upper computer, and can display, control or store signals of load, displacement, torque, corner and the like in the test process in real time for subsequent processing.

2. The tensile testing machine of claim 1, wherein the electric cylinder is a core component of the testing machine, and is composed of a motor and a cylinder body, the motor and the cylinder body are installed in parallel, and are connected with a transmission screw rod of the electric cylinder through a synchronous belt and a synchronous pulley, so that the whole electric cylinder has higher controllability and control precision.

3. The tensile testing machine of claim 1, wherein the upper and lower clamps correspond, the clamps having a tension clamp and a compression clamp for placing the material under test in tension or compression.

4. The tensile testing machine of claim 1 wherein the sensor is a tension and compression load cell for measuring the amount of force applied during tension or compression.

5. The tensile testing machine of claim 1 wherein the controller has a digital register therein for generating control waveforms for generating triangular, sinusoidal, square, ramp and trapezoidal waves.