A fatigue testing device for metallic materials that is easy to fix

Abstract

This utility model relates to the field of metal material testing technology, specifically disclosing a metal material fatigue testing device that is easy to fix. It includes a support plate, a first fixing component on the upper surface of the support plate, a frame fixedly connected to the upper surface of the support plate, a second fixing component fixedly installed on the inner wall of the frame, a loading mechanism fixedly connected to the upper surface of the support plate, a detection component fixedly installed on the inner wall of the frame, and a control plate fixedly installed on the upper surface of the support plate. The first fixing component uses a motor to drive a lead screw to move a push plate, which, in conjunction with a baffle, laterally clamps the sample. The operation is automated and the force is controllable. The second fixing component uses an electric push rod to drive a pressure plate to apply longitudinal pressure, forming a three-dimensional constraint with the lateral fixing, effectively preventing sample displacement and improving testing accuracy. The loading mechanism uses a vertical plate to support a loading cylinder, driving a loading head to stably apply a periodic load, meeting testing requirements.

Description

Technical Field

[0001] This utility model relates to the field of metal material testing technology, and in particular to a metal material fatigue testing device that is easy to fix. Background Technology

[0002] Metal material testing is a technical means of quantitatively or qualitatively analyzing the composition, microstructure, mechanical properties, physicochemical characteristics, and reliability of metal materials through scientific methods, professional equipment, and standard procedures. Its core purpose is to verify whether the materials meet the design requirements, production standards, or service environment requirements, and to provide objective data support for material selection, product quality control, failure analysis, and new material research and development. It is a key link in ensuring the safe, reliable, and efficient application of metal products.

[0003] Existing devices mostly adopt a single-direction fixed structure, which can only clamp metal samples from the lateral or longitudinal direction, and cannot form a three-dimensional constraint. During the application of cyclic fatigue loads, the sample is prone to lateral sliding or longitudinal warping due to uneven force, causing the load application point to deviate from the preset position. To address this issue, we propose a metal material fatigue testing device that is easy to fix. Utility Model Content

[0004] The purpose of this invention is to provide a fatigue testing device for metal materials that is easy to fix, which solves the problem that existing devices mostly adopt a single-direction fixing structure, which can only clamp metal samples from the horizontal or vertical direction, and cannot form a three-dimensional constraint. During the application of periodic fatigue load, the sample is prone to horizontal sliding or vertical warping due to uneven force, causing the load application point to deviate from the preset position.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fatigue testing device for metal materials that is easy to fix includes a support plate, a first fixing component on the upper surface of the support plate, a frame fixedly connected to the upper surface of the support plate, a second fixing component fixedly installed on the inner wall of the frame, a loading mechanism fixedly connected to the upper surface of the support plate, a detection component fixedly installed on the inner wall of the frame, and a control plate fixedly installed on the upper surface of the support plate.

[0007] As a preferred embodiment of the present invention for a fatigue testing device for metal materials that is easy to fix, the first fixing component includes a baffle. The bottom surface of the baffle is fixedly connected to the upper surface of the support plate. Two fixing plates are fixedly connected to the upper surface of the support plate. A motor is fixedly installed on the right side of one of the fixing plates, and a lead screw is fixedly connected to the output end of the motor. A bearing is fixedly embedded on the right side of the other fixing plate, and the inner ring of the bearing is fixedly connected to the outer surface of the lead screw.

[0008] As a preferred embodiment of the present invention for a fatigue testing device for metal materials that is easy to fix, the outer surface of the lead screw is threaded with a movable plate, and two connecting plates are fixedly connected to the left side of the movable plate, and a push plate is fixedly connected to the left side of the two connecting plates together.

[0009] As a preferred embodiment of the present invention for a fatigue testing device for metal materials that is easy to fix, the second fixing component includes an electric push rod, the outer surface of which is fixedly installed to the inner top wall of the frame, and a pressure plate is fixedly connected to the output end of the electric push rod.

[0010] As a preferred embodiment of the present invention for a fatigue testing device for metal materials that is easy to fix, the loading mechanism includes a vertical plate, the outer surface of which is fixedly connected to the upper surface of a support plate, a loading cylinder fixedly installed on the back of the vertical plate, and a loading head fixedly installed at the output end of the loading cylinder.

[0011] As a preferred embodiment of the present invention for a fatigue testing device for metal materials that is easy to fix, the detection component includes two displacement sensors and a camera, wherein the outer surfaces of the two displacement sensors and the outer surface of the camera are fixedly installed to the inner top wall of the frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This easy-to-fix metal material fatigue testing device features a first fixing component where a motor-driven lead screw moves a push plate to clamp the sample laterally, automating the operation and allowing for controllable force. A second fixing component, driven by an electric push rod, applies longitudinal pressure to the pressure plate, creating a three-dimensional constraint with the lateral fixation, effectively preventing sample displacement and improving testing accuracy. A loading mechanism with a vertical plate supports a loading cylinder, driving a loading head to stably apply periodic loads to meet testing requirements. The detection component uses dual displacement sensors and a camera to capture sample deformation and the process from multiple dimensions, providing comprehensive and reliable data. A frame provides a mounting carrier and protection, while a control board centrally operates all components, reducing operational difficulty. The overall structure is reasonable, adaptable to samples of different specifications, and highly practical. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a front view schematic diagram of the fatigue testing device for metal materials that is easy to fix according to the present invention;

[0016] Figure 2 This is a top view of the fatigue testing device for metal materials that is easy to fix according to the present invention.

[0017] Figure 3 This is a left-side structural schematic diagram of a fatigue testing device for metal materials that is easy to fix according to the present invention;

[0018] Figure 4 This is a right-side structural schematic diagram of a fatigue testing device for metal materials that is easy to fix.

[0019] In the diagram: 1. Support plate; 2. First fixing component; 201. Baffle; 202. Fixing plate; 203. Motor; 204. Lead screw; 205. Bearing; 206. Moving plate; 207. Connecting plate; 208. Push plate; 3. Frame; 4. Second fixing component; 401. Electric push rod; 402. Pressure plate; 5. Loading mechanism; 501. Vertical plate; 502. Loading cylinder; 503. Loading head; 6. Detection component; 601. Displacement sensor; 602. Camera; 7. Control board. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise specified, the methods used in the present utility model are conventional methods; unless otherwise specified, the raw materials and apparatus used are conventional commercially available products.

[0021] The motor, electric push rod, loading cylinder, loading head, displacement sensor, and camera in this utility model are all common electrical devices in existing technical specifications, and this application will not elaborate on their models or internal structures.

[0022] Please see Figure 1-4 In this utility model, a fatigue testing device for metal materials that is easy to fix includes a support plate 1, a first fixing component 2 on the upper surface of the support plate 1, a frame 3 fixedly connected to the upper surface of the support plate 1, a second fixing component 4 fixedly installed on the inner wall of the frame 3, a loading mechanism 5 fixedly connected to the upper surface of the support plate 1, a detection component 6 fixedly installed on the inner wall of the frame 3, and a control plate 7 fixedly installed on the upper surface of the support plate 1.

[0023] In this embodiment: the support plate 1 serves as the bearing base, on which are provided a first fixing component 2 for laterally clamping the sample, a loading mechanism 5 for applying periodic loads, and a control plate 7 for centrally controlling each component. The frame 3 fixed on the support plate 1 provides protection for the test and also has a second fixing component 4 that cooperates with the first fixing component 2 to form a three-dimensional fixation, as well as a detection component 6 for real-time monitoring of sample deformation and surface condition. The whole system realizes the fixation, loading, detection, and automated control of fatigue testing of metallic materials.

[0024] As a technical optimization of this utility model, the first fixing component 2 includes a baffle 201. The bottom surface of the baffle 201 is fixedly connected to the upper surface of the support plate 1. Two fixing plates 202 are fixedly connected to the upper surface of the support plate 1. A motor 203 is fixedly installed on the right side of one of the fixing plates 202. A lead screw 204 is fixedly connected to the output end of the motor 203. A bearing 205 is fixedly embedded on the right side of the other fixing plate 202. The inner ring of the bearing 205 is fixedly connected to the outer surface of the lead screw 204. A moving plate 206 is threadedly connected to the outer surface of the lead screw 204. Two connecting plates 207 are fixedly connected to the left side of the moving plate 206. A push plate 208 is fixedly connected to the left side of the two connecting plates 207.

[0025] In this embodiment: the motor 203 drives the lead screw 204 to rotate, and the threaded engagement between the lead screw 204 and the moving plate 206 drives the push plate 208 to move towards the baffle 201, thereby achieving automatic lateral clamping of the sample. The bearing 205 ensures the smooth rotation of the lead screw 204, and the two connecting plates 207 enhance the firmness of the connection between the push plate 208 and the moving plate 206.

[0026] As a technical optimization of this utility model, the second fixing component 4 includes an electric push rod 401. The outer surface of the electric push rod 401 is fixedly installed on the inner top wall of the frame 3, and the output end of the electric push rod 401 is fixedly connected to a pressure plate 402.

[0027] In this embodiment: the extension and retraction of the electric push rod 401 drives the pressure plate 402 to move up and down, and the clamping force can be flexibly adjusted according to the sample thickness. It works in conjunction with the first fixing component 2 to form a three-dimensional fixation, effectively preventing the sample from shifting during the test.

[0028] As a technical optimization of this utility model, the loading mechanism 5 includes a vertical plate 501, the outer surface of the vertical plate 501 is fixedly connected to the upper surface of the support plate 1, a loading cylinder 502 is fixedly installed on the back of the vertical plate 501, and a loading head 503 is fixedly installed at the output end of the loading cylinder 502. The detection component 6 includes two displacement sensors 601 and a camera 602, and the outer surfaces of the two displacement sensors 601 and the outer surfaces of the camera 602 are fixedly installed on the inner top wall of the frame 3.

[0029] In this embodiment: the vertical plate 501 provides stable support for the loading cylinder 502, ensuring that the loading head 503 applies load smoothly. The two displacement sensors 601 can acquire sample deformation data from different angles, and the camera 602 records the test process in real time, providing a comprehensive basis for analyzing the fatigue performance of the sample.

[0030] The working principle of this utility model is as follows: When in use, after the equipment is started by the control board 7, the metal sample is placed in the area of ​​the first fixing component 2 of the support plate 1. The motor 203 drives the lead screw 204 to rotate, which drives the moving plate 206, the connecting plate 207 and the push plate 208 to move. The baffle 201 clamps the sample laterally. Then the second fixing component 4 on the frame 3 is started, and the electric push rod 401 pushes the pressure plate 402 to press the sample longitudinally, forming a three-dimensional fixation. After the fixation is completed, the loading cylinder 502 of the loading mechanism 5 drives the loading head 503 to apply a periodic load. At the same time, the two displacement sensors 601 of the detection component 6 monitor the deformation of the sample, and the camera 602 captures the deformation process. The data is synchronously fed back to the control board 7 to realize automated testing and monitoring.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A metal material fatigue testing apparatus that facilitates fixation, characterized by: The support plate (1) is provided with a first fixing component (2) on its upper surface, a frame (3) is fixedly connected to the upper surface of the support plate (1), a second fixing component (4) is fixedly installed on the inner wall of the frame (3), a loading mechanism (5) is fixedly connected to the upper surface of the support plate (1), a detection component (6) is fixedly installed on the inner wall of the frame (3), and a control plate (7) is fixedly installed on the upper surface of the support plate (1).

2. The metal material fatigue testing apparatus of claim 1, wherein: The first fixing component (2) includes a baffle (201), the bottom surface of which is fixedly connected to the upper surface of the support plate (1). Two fixing plates (202) are fixedly connected to the upper surface of the support plate (1). A motor (203) is fixedly installed on the right side of one of the fixing plates (202), and a lead screw (204) is fixedly connected to the output end of the motor (203). A bearing (205) is fixedly embedded on the right side of the other fixing plate (202), and the inner ring of the bearing (205) is fixedly connected to the outer surface of the lead screw (204).

3. The metal material fatigue testing apparatus of claim 2, wherein: The outer surface of the lead screw (204) is threaded with a movable plate (206), and two connecting plates (207) are fixedly connected to the left side of the movable plate (206). The left side of the two connecting plates (207) are jointly fixedly connected with a push plate (208).

4. The metal material fatigue testing apparatus of claim 1, wherein: The second fixing component (4) includes an electric push rod (401), the outer surface of which is fixedly installed on the inner top wall of the frame (3), and the output end of which is fixedly connected to a pressure plate (402).

5. The metal material fatigue testing apparatus of claim 1, wherein: The loading mechanism (5) includes a vertical plate (501), the outer surface of which is fixedly connected to the upper surface of the support plate (1), and a loading cylinder (502) is fixedly installed on the back of the vertical plate (501). A loading head (503) is fixedly installed at the output end of the loading cylinder (502).

6. The fatigue testing device for metallic materials that is easy to fix according to claim 1, characterized in that: The detection component (6) includes two displacement sensors (601) and a camera (602), and the outer surfaces of the two displacement sensors (601) and the outer surface of the camera (602) are fixedly installed on the inner top wall of the frame (3).

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