Metal material tensile strength detection device

Abstract

The utility model discloses a metal material tensile strength detection device, which relates to the field of metal performance detection and comprises a horizontal detection frame and an automatic feeding mechanism, a fixed detection clamp and a movable detection clamp are oppositely arranged on the horizontal detection frame, and a tool space is formed between the fixed detection clamp and the movable detection clamp. The automatic feeding mechanism comprises a stacking box and a feeding box, the feeding box is fixed to one side of the stacking box, a stacking cavity is formed in the top of the stacking box, a discharging opening is formed in the bottom of the feeding box, and the discharging opening is communicated with the stacking cavity. The side wall of the material stacking box is provided with a material pushing window, the material pushing window is communicated with the discharging port, the side wall of the material stacking box is provided with a material pushing plate, the material pushing plate is used for pushing the lowermost workpiece into the discharging port through the material pushing window, finally the workpiece falls into the two clamping ports from the discharging port, feeding and discharging of the metal sample are automatically completed, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of metal performance testing, specifically a device for testing the tensile strength of metallic materials. Background Technology

[0002] In fields such as industrial manufacturing, aerospace, and automotive engineering, the mechanical properties of metallic materials directly determine the structural safety and service life of end products. Among these, tensile strength is a core indicator, and its accurate testing is a crucial link in ensuring material quality and engineering reliability. With the continuous improvement of the performance requirements of metallic materials in modern industry and the acceleration of production pace, traditional tensile strength testing devices for metallic materials have gradually revealed many technical bottlenecks, making it difficult to meet the needs of efficient, accurate, and automated testing.

[0003] Current metal tensile strength testing devices have a low degree of automation. Their testing process relies on manual loading and positioning. Operators need to manually move the metal sample to the testing station and adjust the relative position of the sample and the clamping mechanism to complete the clamping of the metal sample. The whole process is time-consuming. After the tensile strength test is completed, the sample is manually unloaded and replaced with a new sample for testing. When different metal materials need to be tested in batches, each metal sample needs to be tested manually one by one. The testing efficiency is low and it is not suitable for batch testing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for testing the tensile strength of metallic materials, thereby addressing the deficiencies of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: A tensile strength testing device for metallic materials, comprising a horizontal testing frame and an automatic feeding mechanism, wherein a fixed testing clamp and a movable testing clamp are arranged opposite to each other on the horizontal testing frame, the movable testing clamp having the freedom to move away from or towards the fixed testing clamp, a tooling space is formed between the fixed testing clamp and the movable testing clamp, and a clamping opening is provided through the fixed testing clamp and the movable testing clamp along the height direction of the horizontal testing frame, the clamping opening having a T-shaped cross-section in the horizontal direction, the clamp... The small segment of the holding opening connects to the tooling space. The automatic feeding mechanism includes a stacking box and a feeding box. The feeding box is fixed to one side of the stacking box. The stacking box is arranged above the horizontal inspection frame. The top of the stacking box has a stacking cavity. The bottom of the feeding box has a discharge port. The side wall of the stacking box has a pushing window that connects to the discharge port. The side wall of the stacking box is equipped with a pushing plate. The pushing plate is used to push the bottom workpiece through the pushing window into the discharge port. Finally, the workpiece falls from the discharge port into the two clamping openings.

[0006] Furthermore, the automatic feeding mechanism also includes a bracket, and a side mounting plate is fixed to the side wall of the material stacking box. The side mounting plate is mounted on the bracket by bolts.

[0007] Furthermore, a push plate hydraulic cylinder is installed on the bracket, and the telescopic shaft of the push plate hydraulic cylinder is connected to the push plate.

[0008] Furthermore, two support plates are symmetrically arranged at the bottom of the feeding box. The support plates have the freedom to move closer to or away from the feeding port, and the two support plates move in opposite directions.

[0009] Furthermore, a drive assembly is provided at the end of the feeding box away from the stacking box. The drive assembly includes a bidirectional threaded screw and a motor. The bidirectional threaded screw is rotatably mounted on the feeding box. Screw sliders are threaded onto the two opposite threaded sections of the bidirectional threaded screw. One end of the support plate is connected to the screw slider. The motor is mounted on the feeding box. The output shaft of the motor is connected to a drive gear. A driven gear is mounted on the bidirectional threaded screw. The drive gear meshes with the driven gear.

[0010] Furthermore, a feeding slot is provided through the horizontal testing frame along its own length direction, and a support slider is slidably arranged in the feeding slot. The support slider has the freedom to move along the length direction of the feeding slot, and the bottom surface of the fixed testing clamp and the bottom surface of the movable testing clamp are both in contact with the top surface of the support slider.

[0011] Furthermore, a guide slider is fixed to the side wall of the supporting slider, and a guide groove is provided on the side wall of the feeding slot, and the guide slider is slidably adapted to the guide groove.

[0012] Furthermore, a push hydraulic cylinder is provided inside the feeding trough, the cylinder body of the push hydraulic cylinder is mounted on a horizontal testing frame, and the telescopic shaft of the push hydraulic cylinder is connected to a support slider.

[0013] Furthermore, a detection slide is fixed to the end of the movable detection clamp away from the fixed detection clamp, and the end of the detection slide away from the movable detection clamp is connected to the telescopic shaft of the detection hydraulic cylinder. The cylinder body of the detection hydraulic cylinder is mounted on the horizontal detection frame.

[0014] Furthermore, a detection mounting base is fixed on the horizontal detection frame, a tension / compression sensor is installed on the detection mounting base, and the fixed detection clamp is installed on the detection shaft of the tension / compression sensor.

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

[0016] The metal samples are pushed one by one into the feeding port by the pusher plate. The metal samples fall accurately into the tooling space from the feeding port to complete the loading. Compared with the cumbersome process of traditional manual loading and unloading, it not only saves operators from repeated handling and adjustment steps, but also avoids positioning deviations caused by the randomness of manual operation. At the same time, it reduces the safety hazards caused by long-term repetitive operation. It is especially suitable for batch testing scenarios and significantly improves testing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a tensile strength testing device for metallic materials according to this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a tensile strength testing device for metallic materials according to this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a tensile strength testing device for metallic materials according to this utility model. Figure 3 ;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the automatic feeding mechanism in a metal material tensile strength testing device of this utility model;

[0022] Figure 6 This is a schematic diagram of the horizontal testing frame in a tensile strength testing device for metallic materials according to this utility model. Figure 1 ;

[0023] Figure 7 This is a schematic diagram of the horizontal testing frame in a tensile strength testing device for metallic materials according to this utility model. Figure 2 ;

[0024] In the diagram, 1-Horizontal testing frame, 2-Fixed testing clamp, 3-Modible testing clamp, 4-Clamping port, 5-Material stacking box, 6-Feeding box, 7-Material stacking cavity, 8-Discharge port, 9-Pushing window, 10-Pushing plate, 11-Bracket, 12-Side mounting plate, 13-Pushing plate hydraulic cylinder, 14-Support plate, 15-Double threaded screw, 16-Motor, 17-Screw slider, 18-Driving gear, 19-Driven gear, 20-Discharge slot, 21-Support slider, 22-Guide slider, 23-Guide groove, 24-Pushing hydraulic cylinder, 25-Detection slide, 26-Detection hydraulic cylinder, 27-Detection fixed seat, 28-Tension / compression sensor. Detailed Implementation

[0025] Example 1

[0026] like Figures 1 to 7 As shown, a tensile strength testing device for metallic materials includes a horizontal testing frame 1 and an automatic feeding mechanism. A fixed testing clamp 2 and a movable testing clamp 3 are arranged opposite each other on the horizontal testing frame 1. The movable testing clamp 3 has the freedom to move away from or towards the fixed testing clamp 2. A tooling space is formed between the fixed testing clamp 2 and the movable testing clamp 3. Clamping openings 4 are provided through the fixed testing clamp 2 and the movable testing clamp 3 along the height direction of the horizontal testing frame 1. The horizontal cross-section of the clamping opening 4 is T-shaped. The smaller section of the clamping opening 4 connects to the tooling space. The automatic feeding mechanism includes a stacking box 5 and a feeding box 6. Material box 6 is fixed to one side of stacking box 5, which is arranged above horizontal testing frame 1. Stacking box 5 has a stacking cavity 7 at its top and a discharge port 8 at its bottom. A pushing window 9 is provided on the side wall of stacking box 5, connecting to the discharge port 8. A pushing plate 10 is installed on the side wall of stacking box 5, used to push the bottommost workpiece through the pushing window 9 into the discharge port 8. Finally, the workpiece falls from the discharge port 8 into two clamping openings 4. When testing the tensile strength of metal materials, metal samples are first prepared to ensure consistency in shape and size among the various metal materials. To accurately study the differences in tensile strength between different metallic materials, the metal material to be tested is made into an I-shape. The length and width of the stacking cavity 7 match the length and width of the metal sample, so that the metal sample to be tested is stacked in the stacking box 5. The bottom metal sample corresponds to the pushing window 9. The bottom metal sample is pushed into the discharge port 8 of the loading box 6 by the pushing plate 10. Under normal conditions, the tooling space formed between the fixed detection clamp 2 and the movable detection 3 matches the size of the metal sample, and the discharge port 8 is directly opposite the tooling space, so that both ends of the metal sample fall on the clamping port 4 of the fixed detection clamp 2 and the discharge port 3 respectively. The movable test clamp 3 is placed in the clamping port 4, and then the movable test clamp 3 moves away from the fixed test clamp 2 to stretch the metal sample to study the tensile strength of the metal material. When the metal material breaks, the movable test clamp 3 resets, and the pusher plate 10 pushes the next metal sample into the feeding port 8. The metal sample falls accurately into the tooling space through the feeding port 8 to complete the loading, thereby testing the next metal sample. This realizes the batch testing of metal materials, which not only saves the operator from repeated handling and adjustment steps, but also avoids the positioning deviation caused by the randomness of manual operation, and significantly improves the testing efficiency.

[0027] Example 2

[0028] Based on Example 1, such as Figures 1 to 7As shown, a detection slide 25 is fixed at the end of the movable detection clamp 3 away from the fixed detection clamp 2. The end of the detection slide 25 away from the movable detection clamp 3 is connected to the telescopic shaft of the detection hydraulic cylinder 26. The cylinder body of the detection hydraulic cylinder 26 is mounted on the horizontal detection frame 1. A detection fixing seat 27 is fixed on the horizontal detection frame 1. A tension / compression sensor 28 is installed on the detection fixing seat 27. The fixed detection clamp 2 is installed on the detection shaft of the tension / compression sensor 28. The two ends of the metal sample are respectively tooled in the clamping port 4 of the movable detection clamp 3 and the clamping port 4 of the fixed detection clamp 2. The metal sample is stretched by the detection hydraulic cylinder 26, and the force on the metal sample is recorded by the tension / compression sensor 28, thereby obtaining the tensile strength of the metal material.

[0029] Example 3

[0030] Based on Example 2, such as Figures 1 to 7 As shown, a feeding slot 20 is provided through the horizontal testing frame 1 along its length. A support slider 21 is slidably disposed within the feeding slot 20, and the support slider 21 has the freedom to move along the length of the feeding slot 20. The bottom surfaces of the fixed testing clamp 2 and the movable testing clamp 3 are both in contact with the top surface of the support slider 21. A guide slider 22 is fixed to the side wall of the support slider 21. A guide groove 23 is provided on the side wall of the feeding slot 20, and the guide slider 22 is slidably fitted within the guide groove 23. A push hydraulic cylinder 24 is disposed within the feeding slot 20, and the cylinder body of the push hydraulic cylinder 24 is mounted on the horizontal testing frame 1. The telescopic shaft of the push hydraulic cylinder 24 is connected to the support slider 21. When a metal sample is fed, the push hydraulic cylinder 24 drives the support slider 21. The slider 21 moves below the fixed detection clamp 2 and the movable detection clamp 3, so that the fixed detection clamp 2 and the movable detection clamp 3 contact the supporting slider 21, thereby closing the bottom opening of the clamping port 4, allowing the metal sample to be stably fed into the tooling space. After the test is completed, the hydraulic cylinder 24 is pushed to drive the supporting slider 21 to move, so that the fixed detection clamp 2 and the movable detection clamp 3 are separated from the supporting slider 21, opening the bottom opening of the clamping port 4, allowing the metal sample in the clamping port 4 to fall down by its own weight. A waste bin is set below the horizontal testing frame 1, so that the metal sample falls into the waste bin and is collected, thereby realizing the automatic unloading of the metal sample, and then the next metal sample is fed and tested, realizing automatic loading and unloading, and improving the efficiency of batch testing.

[0031] Example 4

[0032] Based on Example 3, such as Figures 1 to 5As shown, the automatic feeding mechanism also includes a bracket 11. A side mounting plate 12 is fixed to the side wall of the stacking box 5. The side mounting plate 12 is installed on the bracket 11 by bolts. A push plate hydraulic cylinder 13 is installed on the bracket 11. The telescopic shaft of the push plate hydraulic cylinder 13 is connected to the push plate 10. The push plate hydraulic cylinder 13 drives the push plate 10 to move. The setting position of the push plate 10 corresponds to the metal sample at the bottom of the stacking cavity 7, so that the metal samples can be pushed into the discharge port 8 of the feeding box 6 one by one, thus completing the automatic feeding of metal samples. The stacking box 5 is detachably installed on the bracket 11 by bolts. After the metal sample in the stacking box 5 has been tested, it is convenient to replace the next stacking box 5 for testing.

[0033] Example 5

[0034] As the metal sample is gradually pushed into the discharge port 8, when the center of gravity of the metal sample is located at the discharge port 8, the metal sample will fall with one end sinking, causing the metal sample to be unable to be fed into the tooling space. Therefore, based on Example 4, as follows... Figures 1 to 5 As shown, two support plates 14 are symmetrically arranged at the bottom of the feeding box 6. The support plates 14 have the freedom to move closer to or away from the discharge port 8. The two support plates 14 move in opposite directions. A drive assembly is provided at the end of the feeding box 6 away from the stacking box 5. The drive assembly includes a bidirectional threaded screw 15 and a motor 16. The bidirectional threaded screw 15 is rotatably mounted on the feeding box 6. Screw sliders 17 are threadedly fitted on the two opposite threaded sections of the bidirectional threaded screw 15. One end of the support plate 14 is connected to the screw slider 17. The motor 16 is mounted on the feeding box 6. The output shaft of the motor 16 is connected to a drive gear 18. A driven gear 19 is fitted on the bidirectional threaded screw 15. The drive gear 18 meshes with the drive gear 18. Driven gear 19, to ensure the metal sample falls accurately into the tooling space, motor 16 drives the bidirectional threaded screw 15 to rotate through the meshing of drive gear 18 and driven gear 19. Since the threads of the two screw sliders 17 are opposite, the two screw sliders 17 move in opposite directions, causing the two support plates 14 to move in opposite directions. When the metal sample is pushed into the feeding box 6, the two support plates 14 partially move into the discharge port 8. The support plates 14 support the metal sample, allowing the metal sample to fully enter the discharge port 8 and complete the positioning. Finally, the two support plates 14 move in opposite directions to disengage from the discharge port 8, allowing the metal sample to fall flat and accurately into the tooling space, thus achieving precise feeding.

Claims

1. A device for testing the tensile strength of metallic materials, characterized in that, The system includes a horizontal inspection frame (1) and an automatic feeding mechanism. A fixed inspection clamp (2) and a movable inspection clamp (3) are arranged opposite each other on the horizontal inspection frame (1). The movable inspection clamp (3) has the freedom to move away from or towards the fixed inspection clamp (2). A tooling space is formed between the fixed inspection clamp (2) and the movable inspection clamp (3). Clamping openings (4) are provided along the height direction of the horizontal inspection frame (1) on both the fixed inspection clamp (2) and the movable inspection clamp (3). The clamping openings (4) have a T-shaped cross-section in the horizontal direction. The smaller section of the clamping openings (4) connects to the tooling space. The automatic feeding mechanism includes a material stacking box (5). The loading box (6) is fixed on one side of the stacking box (5). The stacking box (5) is arranged above the horizontal inspection frame (1). The top of the stacking box (5) is provided with a stacking cavity (7). The bottom of the loading box (6) is provided with a discharge port (8). The side wall of the stacking box (5) is provided with a push window (9). The push window (9) is connected to the discharge port (8). The side wall of the stacking box (5) is equipped with a push plate (10). The push plate (10) is used to push the bottom workpiece into the discharge port (8) through the push window (9). Finally, the workpiece falls from the discharge port (8) into the two clamping ports (4).

2. The tensile strength testing device for metallic materials according to claim 1, characterized in that, The automatic feeding mechanism also includes a bracket (11), and a side mounting plate (12) is fixed to the side wall of the material box (5). The side mounting plate (12) is installed on the bracket (11) by bolts.

3. The tensile strength testing device for metallic materials according to claim 2, characterized in that, A push plate hydraulic cylinder (13) is installed on the bracket (11), and the telescopic shaft of the push plate hydraulic cylinder (13) is connected to the push plate (10).

4. The tensile strength testing device for metallic materials according to claim 1, characterized in that, The bottom of the feeding box (6) is symmetrically provided with two support plates (14). The support plates (14) have the freedom to move closer to or away from the discharge port (8), and the two support plates (14) move in opposite directions.

5. The tensile strength testing device for metallic materials according to claim 4, characterized in that, The feeding box (6) is provided with a drive assembly at the end away from the stacking box (5). The drive assembly includes a bidirectional threaded screw (15) and a motor (16). The bidirectional threaded screw (15) is rotatably mounted on the feeding box (6). Screw sliders (17) are threadedly fitted on the two opposite threaded sections of the bidirectional threaded screw (15). One end of the support plate (14) is connected to the screw slider (17). The motor (16) is mounted on the feeding box (6). The output shaft of the motor (16) is connected to a drive gear (18). A driven gear (19) is fitted on the bidirectional threaded screw (15). The drive gear (18) meshes with the driven gear (19).

6. The tensile strength testing device for metallic materials according to claim 1, characterized in that, The horizontal testing frame (1) has a feeding slot (20) extending along its length. A support slider (21) is slidably arranged inside the feeding slot (20). The support slider (21) has the freedom to move along the length of the feeding slot (20). The bottom surface of the fixed testing clamp (2) and the bottom surface of the movable testing clamp (3) are both in contact with the top surface of the support slider (21).

7. The tensile strength testing device for metallic materials according to claim 6, characterized in that, The side wall of the support slider (21) is fixed with a guide slider (22), and the side wall of the feeding slot (20) is provided with a guide groove (23). The guide slider (22) slides and adapts to the guide groove (23).

8. The tensile strength testing device for metallic materials according to claim 7, characterized in that, A push hydraulic cylinder (24) is provided in the feeding slot (20). The cylinder body of the push hydraulic cylinder (24) is installed on the horizontal inspection frame (1). The telescopic shaft of the push hydraulic cylinder (24) is connected to the support slider (21).

9. The tensile strength testing device for metallic materials according to claim 1, characterized in that, The movable detection clamp (3) is fixed with a detection slide (25) at one end away from the fixed detection clamp (2). The end of the detection slide (25) away from the movable detection clamp (3) is connected to the telescopic shaft of the detection hydraulic cylinder (26). The cylinder body of the detection hydraulic cylinder (26) is mounted on the horizontal detection frame (1).

10. A device for testing the tensile strength of metallic materials according to claim 1, characterized in that, The horizontal testing frame (1) is fixed with a testing fixture (27), and a tension / compression sensor (28) is installed on the testing fixture (27). The fixed testing clamp (2) is installed on the testing shaft of the tension / compression sensor (28).

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