Fatigue testing machine

Abstract

The utility model relates to the field of fatigue tests, and discloses a fatigue testing machine which comprises a base. A supporting column is fixedly connected to the base, a worker places a workpiece needing to be tested between the two pressing blocks, the pressing blocks are arranged to be inclined planes, so that the workpiece is more conveniently stuffed between the two pressing blocks, and when the workpiece is stuffed between the two pressing blocks, moving rods connected to the pressing blocks can slide on connecting blocks, so that the workpiece is more conveniently stuffed between the two pressing blocks. When the movable rod slides, the spring is stretched, the movable assembly in the sliding groove moves after the workpiece is placed, the connecting block and the workpiece are driven to move into the test assembly on the base, the test assembly fixes and clamps the workpiece, and then the fatigue test is conducted on the workpiece. By means of the arrangement, the workpiece can be more conveniently and fixedly placed, and the situation that multiple workers need to support, rotate and fix the workpiece is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing, specifically to a fatigue testing machine. Background Technology

[0002] A fatigue testing machine is a machine that can simulate load conditions under actual working conditions and test the fatigue performance, fatigue life, and fatigue crack propagation of materials or parts by applying alternating loads. It is widely used in many fields such as aviation, automobiles, construction, and machinery, providing important basis for design optimization.

[0003] The fatigue testing machine disclosed in patent number CN221124151U includes a fixed frame, screws, limiting plates, an impact head fixing plate, and a bearing plate. A cylinder is installed at the top of the fixed frame, and a fixing plate is installed at the bottom of the cylinder. An impact head is installed at the bottom of the fixing plate. A hydraulic cylinder is installed at the bottom of the fixed frame, and a bearing plate is installed at the top of the hydraulic cylinder. Sliding rods are installed on both sides of the bearing plate. Screw holes are opened on both sides of the fixed frame, and two screws are respectively engaged with the two screw holes. Bearings are installed on opposite sides of the two limiting plates, and the opposite ends of the two screws are respectively fixedly connected to the inner rings of the two bearings. This design facilitates the fixing of the steel plate for fatigue testing and allows operators to easily rotate the steel plate for flipping and inspection.

[0004] Existing technology uses two handwheels to rotate a screw, which in turn moves a limiting plate to clamp and fix the steel plate. However, the steel plate is unstable. When fixing the steel plate, it needs to be supported, and then the handwheels are rotated to move the screw, which in turn moves the limiting plate to clamp the steel plate. This is very inconvenient, requiring one worker to hold the steel plate while another worker rotates the handwheels to move the limiting plate to clamp the steel plate. This wastes manpower and cannot guarantee the accuracy of simultaneous operation on both sides. Utility Model Content

[0005] The purpose of this utility model is to provide a fatigue testing machine to solve the following technical problems;

[0006] When clamping the steel plate, one worker needs to hold the steel plate, and another worker needs to turn the handwheel to move the limit plate to clamp the steel plate, which wastes manpower and cannot guarantee the accuracy of simultaneous operation on both sides.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A fatigue testing machine includes a base; four support columns are fixedly connected to the base, each located at one of the four corners of the base; a top platform is fixedly connected to the top of each support column; a testing assembly is mounted on the base; the testing assembly includes a fixing pad; a sliding groove is fixedly connected to one end of the base; a moving component is disposed within the sliding groove; the moving component includes a connecting block; two moving rods are slidably connected to the connecting block; a pressing block is fixedly connected to one end of each moving rod; and a spring is sleeved on each moving rod.

[0009] Furthermore, a second lead screw is rotatably connected within the sliding groove; a second motor is fixedly connected to the sliding groove; the second motor communicates with the second lead screw; a movable plate is rotatably connected to the second lead screw; and a connecting block is fixedly connected to the top of the movable plate.

[0010] Furthermore, a fixing block is fixedly connected to the base; a standing block is fixedly connected to the base; two standing blocks are provided and symmetrically arranged at both ends of the fixing block; a first lead screw is rotatably connected to the standing block; the first lead screw passes through the fixing block; a first motor is fixedly installed at one end of the standing block; the first motor communicates with the first lead screw; a moving block is rotatably connected to the first lead screw; a connecting rod is fixedly connected to the top of the moving block; a fixing pad is fixedly connected to the end of the connecting rod away from the moving block.

[0011] Furthermore, a limiting block is fixedly connected to the top of the fixing block; two limiting blocks are provided and symmetrically arranged on the top of the fixing block; the connecting rod is slidably disposed on the fixing block.

[0012] Furthermore, a lifting rod is fixedly connected to the bottom of the top platform; a lifting plate is fixedly connected to the output end of the lifting rod; the lifting plate is slidably mounted on the support column; and a testing component is provided at the bottom of the lifting plate.

[0013] Furthermore, a support foot is fixedly connected to the base; four support feet are provided and are symmetrically arranged on both sides of the base.

[0014] Furthermore, a display is fixedly connected to one end of the top platform.

[0015] The beneficial effects of this utility model are:

[0016] (1) The staff places the workpiece to be tested between two pressing blocks. The pressing blocks are set with an inclined surface, which makes it easier to insert the workpiece between the two pressing blocks. When the workpiece is inserted between the two pressing blocks, the moving rod connected to the pressing block will slide on the connecting block. When the moving rod slides, the spring will be stretched. After the workpiece is placed, the moving component in the sliding groove will move, which will move the connecting block and the workpiece into the test component on the base. The test component will fix and clamp the workpiece, and then perform fatigue testing on the workpiece. This setting can make it easier to fix and place the workpiece, reducing the need for multiple staff to support and rotate it. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a frontal perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the base in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of the lifting plate in this utility model;

[0022] Figure 5 This is a rear-view perspective view of the present invention.

[0023] Figure descriptions: 1. Base; 2. Support column; 3. Top platform; 4. Lifting rod; 5. Lifting plate; 6. Support foot; 7. Fixing block; 8. Limiting block; 9. Moving block; 10. Connecting rod; 11. Fixing pad; 12. First lead screw; 13. Vertical block; 14. First motor; 15. Sliding groove; 16. Second motor; 17. Second lead screw; 18. Moving plate; 19. Connecting block; 20. Pressing block; 21. Spring; 22. Moving rod; 23. Display. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5As shown, this utility model is a fatigue testing machine, including a base 1; support columns 2 are fixedly connected to the base 1; four support columns 2 are provided and are respectively arranged at the four corners of the base 1; a top platform 3 is fixedly connected to the top of the support columns 2; a testing component is provided on the base 1; the testing component includes a fixing pad 11; a sliding groove 15 is fixedly connected to one end of the base 1; a moving component is provided in the sliding groove 15; the moving component includes a connecting block 19; a moving rod 22 is slidably connected to the connecting block 19; two moving rods 22 are provided and are symmetrically arranged on the connecting block 19; a pressing block 20 is fixedly connected to one end of the moving rod 22; a spring 21 is sleeved on the moving rod 22;

[0026] When fatigue testing is required, the worker places the workpiece between two pressing blocks 20. The pressing blocks 20 are designed with an angled surface, making it easier to insert the workpiece between them. When the workpiece is inserted between the two pressing blocks 20, the moving rod 22 connected to the pressing block 20 slides on the connecting block 19. As the moving rod 22 slides, the spring 21 is stretched. After the workpiece is placed, the moving component in the sliding groove 15 moves, moving the connecting block 19 and the workpiece into the test component on the base 1. The test component clamps the workpiece and then performs the fatigue test. This design makes it easier to fix the workpiece, reducing the need for multiple workers to support and rotate it. After the workpiece is fixed by the test component, the moving component moves the connecting block 19 in the direction it came from. After the fatigue test is completed, the workpiece is moved again to remove it from the test component.

[0027] Please refer to the attached image. Figure 1 , Figure 2 and Figure 5 As shown, specifically, a second lead screw 17 is rotatably connected inside the sliding groove 15; a second motor 16 is fixedly connected to the sliding groove 15; the second motor 16 is connected to the second lead screw 17; a moving plate 18 is rotatably connected to the second lead screw 17; a connecting block 19 is fixedly connected to the top of the moving plate 18; during operation, the second lead screw 17 is driven to rotate by the second motor 16, and the rotating second lead screw 17 causes the moving plate 18 to move back and forth. The back and forth movement of the moving plate 18 will drive the connecting block 19 and the pressing block 20 to move, thereby sending the workpiece into the test assembly for fixed clamping.

[0028] Please refer to the attached image. Figure 2 , Figure 4 and Figure 5As shown, specifically, a fixing block 7 is fixedly connected to the base 1; a vertical block 13 is fixedly connected to the base 1; two vertical blocks 13 are provided and symmetrically arranged at both ends of the fixing block 7; a first lead screw 12 is rotatably connected to the vertical block 13; the first lead screw 12 passes through the fixing block 7; a first motor 14 is fixedly installed at one end of the vertical block 13; the first motor 14 is connected to the first lead screw 12; a moving block 9 is rotatably connected to the first lead screw 12; a connecting rod 10 is fixedly connected to the top of the moving block 9; a fixing pad 11 is fixedly connected to the end of the connecting rod 10 away from the moving block 9; during operation, the first lead screw 12 is driven by the first motor 14 to rotate. The first lead screw 12 is provided with a bidirectional thread. The rotation of the first lead screw 12 will cause the moving block 9 to move toward or away from the fixing block 7. The movement of the moving block 9 will cause the connecting rod 10 and the fixing pad 11 to move, thus fixing the workpiece.

[0029] Please refer to the attached image. Figure 1 , Figure 4 and Figure 5 As shown, specifically, a limiting block 8 is fixedly connected to the top of the fixing block 7; there are two limiting blocks 8, which are symmetrically arranged on the top of the fixing block 7; the connecting rod 10 is slidably disposed on the fixing block 7; during operation, the two fixing blocks 7 are provided on the fixing block 7 to ensure that the connecting rod 10 remains stable when moving, and to prevent the moving rod 22 and the fixing pad 11 from shifting when moving.

[0030] Please refer to the attached image. Figure 2 , Figure 4 and Figure 5 As shown, specifically, a lifting rod 4 is fixedly connected to the bottom of the top platform 3; a lifting plate 5 is fixedly connected to the output end of the lifting rod 4; the lifting plate 5 is slidably mounted on the support column 2; a testing component is provided at the bottom of the lifting plate 5; during operation, the lifting rod 4 is used to lift and lower, causing the lifting plate 5 to slide on the support column 2. The driver that drives the lifting rod 4 to lift and lower is located inside the top platform 3. The testing component is also provided at the bottom of the lifting plate 5 to clamp the workpiece at both ends and to perform fatigue testing on the workpiece by lifting and lowering it using the lifting rod 4.

[0031] Please refer to the attached image. Figure 1 , Figure 4 and Figure 5 As shown, specifically, a support foot 6 is fixedly connected to the base 1; there are four support feet 6, which are symmetrically arranged on both sides of the base 1; during operation, the support feet 6 are fixed on the base 1 to ensure that the equipment can remain stable and not shake when performing fatigue testing on the workpiece.

[0032] Please refer to the attached image. Figure 1 and Figure 2 As shown, specifically, a display 23 is fixedly connected to one end of the top platform 3; during operation, the torque value and relative fatigue test data of the test workpiece can be directly observed through the display 23 set on the top platform 3.

[0033] The working principle of this utility model is as follows: When a fatigue test is required on a workpiece, the operator places the workpiece to be tested between two pressing blocks 20. The pressing blocks 20 are set at an angle, which makes it easier to insert the workpiece between the two pressing blocks 20. When the workpiece is inserted between the two pressing blocks 20, the moving rod 22 connected to the pressing block 20 will slide on the connecting block 19. While the moving rod 22 is sliding, the spring 21 will be stretched. After the workpiece is placed, the moving component in the sliding groove 15 will move, moving the connecting block 19 and the workpiece into the test component on the base 1. The test component will fix and clamp the workpiece, and then perform a fatigue test on the workpiece. This setting can more conveniently fix and place the workpiece, reducing the need for multiple operators to support and rotate it for fixation. After the workpiece is fixed by the test component, the moving component will move the connecting block 19 in the direction it came from. After the fatigue test of the workpiece is completed, the workpiece is moved again to remove it from the test component.

[0034] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fatigue testing machine, characterized in that, The system includes a base (1); a support column (2) is fixedly connected to the base (1); four support columns (2) are provided and are respectively arranged at the four corners of the base (1); a top platform (3) is fixedly connected to the top of the support column (2); a test component is provided on the base (1); the test component includes a fixing pad (11); a sliding groove (15) is fixedly connected to one end of the base (1); a moving component is provided in the sliding groove (15); the moving component includes a connecting block (19); a moving rod (22) is slidably connected to the connecting block (19); two moving rods (22) are provided and are symmetrically arranged on the connecting block (19); a pressing block (20) is fixedly connected to one end of the moving rod (22); and a spring (21) is sleeved on the moving rod (22).

2. The fatigue testing machine according to claim 1, characterized in that, A second lead screw (17) is rotatably connected inside the sliding groove (15); a second motor (16) is fixedly connected to the sliding groove (15); the second motor (16) is connected to the second lead screw (17); a moving plate (18) is rotatably connected to the second lead screw (17); a connecting block (19) is fixedly connected to the top of the moving plate (18).

3. The fatigue testing machine according to claim 2, characterized in that, A fixing block (7) is fixedly connected to the base (1); a standing block (13) is fixedly connected to the base (1); two standing blocks (13) are provided and symmetrically arranged at both ends of the fixing block (7); a first lead screw (12) is rotatably connected to the standing block (13); the first lead screw (12) passes through the fixing block (7); a first motor (14) is fixedly installed at one end of the standing block (13); the first motor (14) is connected to the first lead screw (12); a moving block (9) is rotatably connected to the first lead screw (12); a connecting rod (10) is fixedly connected to the top of the moving block (9); a fixing pad (11) is fixedly connected to the end of the connecting rod (10) away from the moving block (9).

4. A fatigue testing machine according to claim 3, characterized in that, The top of the fixed block (7) is fixedly connected to a limiting block (8); there are two limiting blocks (8), which are symmetrically arranged on the top of the fixed block (7); the connecting rod (10) is slidably disposed on the fixed block (7).

5. A fatigue testing machine according to claim 4, characterized in that, The top platform (3) is fixedly connected to a lifting rod (4) at its bottom; the output end of the lifting rod (4) is fixedly connected to a lifting plate (5); the lifting plate (5) is slidably mounted on the support column (2); and a test component is provided at the bottom of the lifting plate (5).

6. A fatigue testing machine according to claim 1, characterized in that, The base (1) is fixedly connected with a support foot (6); there are four support feet (6), which are symmetrically arranged on both sides of the base (1).

7. A fatigue testing machine according to claim 1, characterized in that, A display (23) is fixedly connected to one end of the top platform (3).

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