Hardness detection device for metal-based composite material

Abstract

The utility model discloses a metal matrix composite material hardness detection device which comprises an installation base, an installation groove is formed in the upper end face of the installation base, two moving grooves are symmetrically formed in the inner side wall of the installation groove, and a clamping device is connected between the two moving grooves. A fixing block is fixedly mounted on the upper end face of the mounting base, a driving groove is formed in the upper end face of the fixing block, a transmission device is arranged in the driving groove, the output end of the transmission device is rotationally connected to the upper end face of the fixing block, a sliding groove is formed in the output end of the transmission device, and a moving device is arranged in the sliding groove. An air cylinder is fixedly connected to the output end of the moving device. Through the arrangement of the second motor, the clamping device, the mounting groove, the transmission device, the first motor and the moving device, materials with different shapes and sizes can be fixed and observed, and meanwhile, the hardness of any point on the surface of the material can be detected through the cooperation of the transmission device and the moving device.

Description

Technical Field

[0001] This utility model relates to the field of metal hardness testing technology, and in particular to a hardness testing device for metal matrix composite materials. Background Technology

[0002] Metal matrix composites are composite materials made by artificially combining metals and their alloys as the matrix with one or more metallic or non-metallic reinforcing phases. The reinforcing materials are mostly inorganic non-metals, such as ceramics, carbon, graphite, and boron, but metal wires can also be used. Together with polymer matrix composites, ceramic matrix composites, and carbon / carbon composites, they constitute the modern composite material system.

[0003] Chinese utility model patent CN214010955U discloses a hardness testing device for metal matrix composite materials. In operation, the device utilizes a first and second pulley to rotate the support rod and rotating plate, a second cylinder to move the vacuum suction cup, a pneumatic three-jaw chuck to clamp the workpiece, a first cylinder to move the hardness tester body, a collection box to collect the tested workpiece, a second connecting plate to lift the workpiece within the storage box, and teeth to drive the first gear. The device, which moves the moving teeth and incorporates a control panel, allows for controllable operation. However, this device can only perform hardness testing on a single point on the material. Metal matrix composites often exhibit microstructural inhomogeneity, and the distribution of reinforcing phases may be inconsistent. This can lead to significant differences in hardness test results at different locations, necessitating multiple tests at various points on the material. Furthermore, due to the activation of the three-jaw chuck, this device is not suitable for observing materials of different shapes during hardness testing, nor is it easy to detect whether the material being tested is deformed. Therefore, a new hardness testing device for metal matrix composites needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the background art by proposing a hardness testing device for metal matrix composite materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hardness testing device for metal matrix composites includes a mounting base. The upper surface of the mounting base has a mounting groove. Two symmetrically arranged movable grooves are formed on the inner wall of the mounting groove. A clamping device is connected between the two movable grooves. The clamping device includes two double-ended threaded rods, which are respectively mounted on the inner wall of the two movable grooves via bearings. Each double-ended threaded rod is threadedly connected to two movable blocks, which are slidably engaged within corresponding movable grooves. A clamping plate is fixedly connected between the two corresponding movable blocks. One end of each double-ended threaded rod penetrates the inner wall of the corresponding movable groove and extends towards... A first synchronous pulley and a second synchronous pulley are jointly installed on the outer side of the mounting base. A synchronous belt is installed between the first synchronous pulley and the second synchronous pulley. A second mounting bracket is fixedly installed on one side of the mounting base. A second motor is fixedly installed on the second mounting bracket, and the output shaft of the second motor is fixedly connected to the first synchronous pulley. A fixing block is fixedly installed on the upper end face of the mounting base. A drive groove is opened on the upper end face of the fixing block. A transmission device is provided in the drive groove, and the output end of the transmission device is rotatably connected to the upper end face of the fixing block. A sliding groove is opened on the output end of the transmission device. A moving device is provided in the sliding groove, and a cylinder is fixedly connected to the output end of the moving device.

[0007] Preferably, the transmission device includes a drive motor and a connecting shaft, wherein the drive motor is fixedly installed in the drive groove, and the connecting shaft is rotatably connected to the upper end face of the fixed block. A gear is fixedly installed on the output shaft of the drive motor, and a half gear is fixedly installed on the outer wall of the connecting shaft, and the half gear meshes with the gear. A mounting plate is fixedly connected to the upper end face of the connecting shaft, and a sliding groove is formed on the lower end face of the mounting plate.

[0008] Preferably, the moving device includes a threaded rod, one end of which is mounted on the inner wall of the slide groove via a bearing. The threaded rod is threadedly connected to a slider, which is slidably connected within the slide groove, and a cylinder is fixedly mounted on the lower end face of the slider.

[0009] Preferably, a first mounting bracket is fixedly mounted on one end of the mounting plate, a first motor is fixedly mounted on the first mounting bracket, and the output shaft of the first motor passes through one end of the mounting plate and is fixedly connected to one end of the threaded rod.

[0010] Preferably, a plurality of support legs are fixedly installed on the lower end face of the mounting base.

[0011] Preferably, each of the clamps is made of rubber.

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

[0013] 1. By setting up a second motor, clamping device, mounting slot and other structures, materials of different shapes can be placed between the clamping devices and fixed by the motor driving the clamping devices. At the same time, the mounting slot facilitates the observation of materials undergoing hardness testing.

[0014] 2. By setting up a transmission device, a first motor, and a moving device, the hardness of any point on the material surface can be tested according to the testing requirements by utilizing the cooperation of the transmission device and the moving device.

[0015] In summary, this utility model, by setting up a second motor, a clamping device, a mounting groove, a transmission device, a first motor, and a moving device, can fix and observe materials of different shapes and sizes. At the same time, by utilizing the cooperation of the transmission device and the moving device, the hardness of any point on the material surface can be tested. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a metal matrix composite material hardness testing device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the transmission device of a metal matrix composite material hardness testing device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the synchronization component of a metal matrix composite material hardness testing device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping device part of a metal matrix composite material hardness testing device proposed in this utility model.

[0020] In the diagram: 1. Mounting base, 2. Mounting slot, 3. Fixing block, 4. Gear, 5. Mounting plate, 6. First motor, 7. First mounting bracket, 8. Cylinder, 9. Second synchronous pulley, 10. Drive slot, 11. Drive motor, 12. Connecting shaft, 13. Half gear, 14. Slide groove, 15. Slider, 16. First synchronous pulley, 17. Synchronous belt, 18. Moving slot, 19. Clamping plate, 20. Moving block, 21. Double-ended threaded rod, 22. Second motor, 23. Second mounting bracket, 24. Threaded rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4A metal matrix composite material hardness testing device includes a mounting base 1. A mounting groove 2 is formed on the upper surface of the mounting base 1. Two movable grooves 18 are symmetrically formed on the inner wall of the mounting groove 2. A clamping device is connected between the two movable grooves 18. The clamping device includes two double-ended threaded rods 21, which are respectively mounted on the inner wall of the two movable grooves 18 via bearings. Each double-ended threaded rod 21 is threaded with two movable blocks 20. The two movable blocks 20 are respectively threaded onto opposite threads at both ends of the double-ended threaded rods 21, and are slidably locked within the corresponding movable grooves 18. A clamping plate 19 is fixedly connected between the two corresponding movable blocks 20. One end of each double-ended threaded rod 21 penetrates the inner wall of the corresponding movable groove 18 and extends outward, where a first synchronous pulley 16 is mounted. A timing belt 17 is installed between the first timing pulley 16 and the second timing pulley 9. The first timing pulley 16 can drive the second timing pulley 9 to rotate synchronously through the timing belt 17. A second mounting bracket 23 is fixedly installed on one side of the mounting base 1. A second motor 22 is fixedly installed on the second mounting bracket 23, and the output shaft of the second motor 22 is fixedly connected to the first timing pulley 16. The second motor 22 can drive the first timing pulley 16 to rotate. A fixing block 3 is fixedly installed on the upper end surface of the mounting base 1. A drive groove 10 is opened on the upper end surface of the fixing block 3. A transmission device is provided in the drive groove 10, and the output end of the transmission device is rotatably connected to the upper end surface of the fixing block 3. A sliding groove 14 is opened on the output end of the transmission device. A moving device is provided in the sliding groove 14. A cylinder 8 is fixedly connected to the output end of the moving device. The cylinder 8 can drive the hardness testing device to move.

[0023] The transmission device includes a drive motor 11 and a connecting shaft 12. The drive motor 11 is fixedly installed in the drive groove 10, and the connecting shaft 12 is rotatably connected to the upper end face of the fixed block 3. A gear 4 is fixedly installed on the output shaft of the drive motor 11, and a half gear 13 is fixedly installed on the outer wall of the connecting shaft 12. The half gear 13 meshes with the gear 4. A mounting plate 5 is fixedly connected to the upper end face of the connecting shaft 12, and a sliding groove 14 is opened on the lower end face of the mounting plate 5. The drive motor 11 can drive the gear 4 to rotate, the gear 4 can drive the half gear 13 to rotate, and the half gear can drive the connecting rod 12 to rotate synchronously.

[0024] The moving device includes a threaded rod 24, one end of which is mounted on the inner wall of the slide groove 14 via a bearing. The threaded rod 24 is threadedly connected to a slider 15, which is slidably connected within the slide groove 14. The cylinder 8 is fixedly mounted on the lower end face of the slider 15.

[0025] A first mounting bracket 7 is fixedly mounted on one end of the mounting plate 5. A first motor 6 is fixedly mounted on the first mounting bracket 7. The output shaft of the first motor 6 passes through one end of the mounting plate 5 and is fixedly connected to one end of the threaded rod 24. The first motor 6 can drive the threaded rod 24 to rotate.

[0026] Multiple support legs are fixedly installed on the lower end face of the mounting base 1.

[0027] Each clamp 19 is made of rubber, which prevents the clamp 19 from damaging the testing material.

[0028] In this invention, the hardness testing device can be fixedly mounted on the output shaft of the cylinder 8. When using this device, the distance between the clamping plates 19 of the clamping device can be adjusted according to the size of the metal material. By starting the second motor 22, the output shaft of the second motor 22 can drive the first synchronous wheel 16 to rotate. The first synchronous wheel 16 drives the second synchronous wheel 9 to rotate through the synchronous belt 17. Subsequently, the two double-ended threaded rods 21 can rotate synchronously with the first synchronous wheel 16 and the second synchronous wheel 9. Then, the moving blocks 20 threadedly connected to the two double-ended threaded rods 21 will move closer or further away from each other. Subsequently, the clamping plates 19 fixed between the two moving blocks 20 will move the blocks 20 synchronously, moving closer or further away from each other. Then, materials of different shapes that need to be hardened can be placed between the two clamping plates 19. Then, the cylinder 8 can be started to drive the hardness testing device to perform hardness testing on the materials on the clamping plates 19. When the material is deformed, it can be clearly seen by observing whether the two sides of the material are raised on the clamping plates 19.

[0029] When it is necessary to perform hardness testing on a material without electrical current, the drive motor 11 can be started. The drive motor 11 drives the gear 4 to rotate, and the rotation of the gear 4 drives the half gear 13 to rotate. The rotation of the half gear 13 drives the connecting shaft 12 to rotate, and then the mounting plate 5 can rotate at a certain angle following the connecting shaft 12. The angle of the mounting plate 5 can be adjusted according to the point where the material hardness needs to be tested. Then the first motor 6 can be started. The output shaft of the first motor 6 drives the threaded rod 24 to rotate, and the output shaft of the threaded rod 24 drives the slider 15, which is threaded to it, to slide in the slide groove 14. At this time, the position of the slider 15 in the slide groove 14 can be adjusted according to the point where the material hardness needs to be tested. At the same time, the cylinder 8 will move synchronously with the slider 15. Then the cylinder 8 can be started to perform hardness testing on the material.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the hardness of a metal matrix composite material, comprising a mounting base (1), characterised in that: The upper surface of the mounting base (1) is provided with a mounting groove (2). Two movable grooves (18) are symmetrically provided on the inner sidewall of the mounting groove (2). A clamping device is connected between the two movable grooves (18). The clamping device includes two double-ended threaded rods (21). The two double-ended threaded rods (21) are respectively mounted on the inner sidewall of the two movable grooves (18) through bearings. The two double-ended threaded rods (21) are threadedly connected to two movable blocks (20). The movable blocks (20) are slidably locked in the movable grooves (18) with corresponding positions. A clamping plate (19) is fixedly connected between the two movable blocks (20) with corresponding positions. One end of the two double-ended threaded rods (21) passes through the inner sidewall of the corresponding movable grooves (18) and extends outward to be installed with a first synchronous wheel (16). A timing belt (17) is installed between the first timing pulley (16) and the second timing pulley (9). A second mounting bracket (23) is fixedly installed on one side of the mounting base (1). A second motor (22) is fixedly installed on the second mounting bracket (23), and the output shaft of the second motor (22) is fixedly connected to the first timing pulley (16). A fixing block (3) is fixedly installed on the upper end face of the mounting base (1). A drive groove (10) is opened on the upper end face of the fixing block (3). A transmission device is provided in the drive groove (10), and the output end of the transmission device is rotatably connected to the upper end face of the fixing block (3). A sliding groove (14) is opened on the output end of the transmission device. A moving device is provided in the sliding groove (14), and a cylinder (8) is fixedly connected to the output end of the moving device.

2. The metal matrix composite material hardness testing device according to claim 1, characterized in that: The transmission device includes a drive motor (11) and a connecting shaft (12). The drive motor (11) is fixedly installed in the drive groove (10), and the connecting shaft (12) is rotatably connected to the upper end face of the fixed block (3). A gear (4) is fixedly installed on the output shaft of the drive motor (11). A half gear (13) is fixedly installed on the outer wall of the connecting shaft (12), and the half gear (13) meshes with the gear (4). A mounting plate (5) is fixedly connected to the upper end face of the connecting shaft (12), and a sliding groove (14) is opened on the lower end face of the mounting plate (5).

3. The device for detecting the hardness of a metal matrix composite material according to claim 2, characterized in that: The moving device includes a threaded rod (24), and one end of the threaded rod (24) is mounted on the inner wall of the slide groove (14) by a bearing. The threaded rod (24) is threadedly connected to a slider (15), and the slider (15) is slidably connected in the slide groove (14). The cylinder (8) is fixedly installed on the lower end face of the slider (15).

4. The metal matrix composite material hardness testing device according to claim 3, characterized in that: A first mounting bracket (7) is fixedly mounted on one end of the mounting plate (5), and a first motor (6) is fixedly mounted on the first mounting bracket (7). The output shaft of the first motor (6) passes through one end of the mounting plate (5) and is fixedly connected to one end of the threaded rod (24).

5. The device for detecting the hardness of a metal matrix composite material according to claim 1, wherein: Multiple support legs are fixedly installed on the lower end face of the mounting base (1).

6. The device for detecting the hardness of a metal matrix composite material according to claim 1, wherein: Each of the clamps (19) is made of rubber.

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