A device and method for testing the hardness of metallic materials

Abstract

This invention discloses a metal material hardness testing device and method, including a base plate, a first support plate fixedly installed on the top of the base plate, and two conveyor belts rotatably installed on both sides of the first support plate; it also includes a sorting mechanism for separating metal materials that meet the hardness test standards and those that do not; the sorting mechanism includes a second support plate, the second support plate being fixedly installed on the top of the second support plate, and connecting plates fixedly installed on both sides of the second support plate; by moving the fixed block with the connecting block, a second electric telescopic rod extends and the output shaft of a fourth motor rotates the connecting rod, the connecting rod, in conjunction with a third electric telescopic rod, positions the Leeb hardness tester on top of the metal material, the Leeb hardness tester tests the hardness of the metal material, and for qualified metal materials, the fixed block carries them to the top of the initial conveyor belt, while for unqualified metal materials, the fixed block carries them to the top of another conveyor belt.

Description

Technical Field

[0001] This invention relates to the field of hardness testing technology for metallic materials, specifically a device and method for testing the hardness of metallic materials. Background Technology

[0002] With the increasing use of metal materials, which are hard and not easily damaged, aluminum alloys may be used during construction to ensure the longevity of the project. Aluminum alloys have a long service life and are relatively hard, making them less prone to damage. During the production of aluminum alloys, it is necessary to test their hardness to facilitate selective use later. Hardness testing devices are usually required to test the hardness of aluminum alloys.

[0003] A search revealed that patent document CN219142543U discloses a metal material hardness testing device, which includes a testing device body, an internal cylinder, a testing plate connected to the top of the cylinder, a worktable below the testing plate, a fixing mechanism outside the worktable, and a driving mechanism inside the testing device body.

[0004] The metal material hardness testing device fixes the metal material while the worktable moves, and the two operate simultaneously, which saves time and improves the overall testing efficiency. However, after detecting unqualified products, it cannot automatically distinguish between qualified and unqualified products, and staff still need to collect all products separately.

[0005] Therefore, a device and method for testing the hardness of metallic materials are proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the problem that testing devices cannot directly distinguish between qualified and unqualified products, this invention proposes a metal material hardness testing device and testing method.

[0007] A metal material hardness testing device includes a base plate, a first support plate fixedly installed on the top of the base plate, and two conveyor belts rotatably installed on both sides of the first support plate.

[0008] It also includes a sorting mechanism to separate metal materials that meet or fail the hardness test.

[0009] The sorting mechanism includes a second support plate, which is fixedly installed on the top of the second support plate. Connecting plates are fixedly installed on both sides of the second support plate. A connecting block is slidably installed on the bottom of the two connecting plates and the second support plate. A first electric telescopic rod is fixedly connected to the bottom of the connecting block. A fixing block is fixedly connected to the bottom of the first electric telescopic rod. A sixth groove is formed at the bottom of the fixing block. Two sliding plates are slidably installed on the inner surface of the sixth groove. A bidirectional threaded rod is rotatably installed on the inner surface of the sixth groove. The bidirectional threaded rod is threadedly connected to the two sliding plates. One end of the bidirectional threaded rod passes through the sixth groove and is fixedly connected to a fifth motor. The fifth motor is fixedly installed on one side of the fixing block. A Leeb hardness tester is movably installed on the bottom of the second support plate.

[0010] Preferably, four first support legs are fixedly installed on the top of the base plate, and a first support plate is fixedly installed on the top of the four first support legs. Two protective plates are fixedly installed on the top of the base plate, and two first grooves are formed on the top of the first support plate.

[0011] Preferably, two clamping plates are slidably installed on the inner surfaces of the two first grooves. A first threaded groove is provided on one side of each clamping plate. A bidirectional threaded rod is rotatably installed on the inner surface of the first groove. The bidirectional threaded rod is rotatably installed on the inner surface of the first threaded groove. One end of the bidirectional threaded rod passes through the first groove and is fixedly connected to a first pulley. The two first pulleys are driven by a first belt. A first motor is fixedly connected to one side of the first pulley. The first motor is fixedly installed on one side of the first support plate.

[0012] Preferably, the bottom of the first support plate is provided with a second groove, and a drive shaft is rotatably mounted on the inner surface of the second groove. The two ends of the drive shaft pass through the second groove and are fixedly connected to a second pulley. A second motor is fixedly connected to the bottom of the first support plate, and a second belt is wound around the output shaft of the second motor and the outer surface of the drive shaft.

[0013] Preferably, two conveying rollers are rotatably installed between the first support plate and the guard plate on the same side. One end of one of the conveying rollers is fixedly connected to a third pulley. The third pulley and the second pulley on the same side are driven by a third belt, and the two conveying rollers on the same side are driven by a conveyor belt.

[0014] Preferably, four second support legs are fixedly installed on the top of the first support plate, and the four second support legs are fixedly installed together on the bottom of the second support plate. A third groove is opened on the bottom of the second support plate, and a fourth groove is opened on the bottom of the connecting plate. The third groove communicates with the inner cavity of the two fourth grooves. A threaded rod is rotatably installed in the inner cavity of the third groove and the two fourth grooves. The threaded rod is threadedly connected to the connecting block. A third motor is fixedly connected to one end of the threaded rod, and the third motor is fixedly installed on one side of the connecting plate.

[0015] Preferably, a first mounting block is fixedly installed at the bottom of the second support plate, a second electric telescopic rod is fixedly connected to one side of the first mounting block, the output end of the second electric telescopic rod is fixedly connected to the second mounting block, a fifth groove is formed on one side of the second mounting block, a fourth motor is fixedly installed at the bottom of the second mounting block, the output shaft of the fourth motor passes through the inner cavity of the fifth groove, a connecting rod is rotatably installed in the inner cavity of the fifth groove, the connecting rod is fixedly connected to the output shaft of the fourth motor, a third electric telescopic rod is fixedly connected to the bottom of the connecting rod, the Leeb hardness tester is fixedly installed at the bottom of the third electric telescopic rod, a first mounting frame is fixedly installed on one side of the second support plate, a fourth electric telescopic rod is fixedly installed at the bottom of the first mounting frame, a second mounting frame is fixedly connected to the output end of the fourth electric telescopic rod, a cleaning roller is rotatably installed on the inner surface of the second mounting frame, a fifth motor is fixedly installed on one side of the second mounting frame, and the output shaft of the fifth motor is fixedly connected to one side of the cleaning roller.

[0016] A method for testing the hardness of metallic materials, the method comprising the following steps:

[0017] S1: First, place the metal material to be tested on the conveyor belt and clean the surface of the metal material by rotating the cleaning roller;

[0018] S2: The metal material at the top of the conveyor belt is clamped to the top of the first support plate by the fixing block, and the hardness of the metal material is tested by the Leeb hardness tester;

[0019] S3: Metal materials that pass the hardness test are brought back to the top of the conveyor belt by the Leeb hardness tester, where they are collected and stored by staff.

[0020] S4: Metal materials that fail the hardness test are carried by the Leeb hardness tester to the top of another conveyor belt, where workers collect and reprocess them.

[0021] The advantages of this invention are:

[0022] 1. In this invention, a first electric telescopic rod drives a fixing block to descend to the top of a metal material and clamps the metal material with two sliding plates. Then, the output shaft of a third motor drives a second threaded rod to rotate, driving a connecting block to the top of a first support plate. At this time, the metal material also moves to the top of the first support plate. The first electric telescopic rod then extends, and the two sliding plates no longer clamp the metal material, which falls to the top of the first support plate. The output shaft of the first motor drives a first pulley to rotate. Through the first belt drive, both first pulleys begin to rotate and drive the two first threaded rods to rotate respectively. The two first threaded rods further bring the two clamping plates closer together to clamp and fix the metal material.

[0023] 2. In this invention, the output shaft of the second motor drives the transmission shaft to rotate, which is then driven by two third belts. In conjunction with the four conveyor rollers of the conveyor belt, all four rollers start to rotate, and the conveyor belt also rotates. As the conveyor belt carries the metal material at the top, the cleaning roller cleans the dust on the surface of the metal material when the metal material passes the bottom of the cleaning roller. Under the action of the output shaft of the fifth motor driving the cleaning roller to rotate, the cleaning roller cleans the dust on the surface of the metal material.

[0024] 3. In this invention, the connecting block moves the fixed block to a new position, the second electric telescopic rod extends, and the output shaft of the fourth motor rotates the connecting rod. The connecting rod, in conjunction with the third electric telescopic rod, positions the Leeb hardness tester at the top of the metal material. The Leeb hardness tester detects the hardness of the metal material. For qualified metal materials, the fixed block carries them to the top of the initial conveyor belt. For unqualified metal materials, the fixed block carries them to the top of another conveyor belt. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of a clamp connection structure according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of a drive shaft connection structure according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of a threaded rod connection structure according to an embodiment of the present invention;

[0030] Figure 5This is a schematic diagram of the installation structure of a Leeb hardness tester according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the cleaning roller connection structure according to an embodiment of the present invention;

[0032] Figure 7 This is a flowchart of one embodiment of the present invention.

[0033] In the diagram: 1. Base plate; 101. First support plate; 11. First support leg; 12. Guard plate; 13. First groove; 2. Clamping plate; 21. First threaded groove; 22. Double-sided threaded rod; 23. First pulley; 24. First belt; 25. First motor; 3. Conveyor belt; 31. Second groove; 32. Drive shaft; 33. Second belt; 34. Second motor; 35. Second pulley; 36. Third belt; 37. Conveyor roller; 371. Third pulley; 4. Second support leg; 41. Second support plate; 411. Third groove; 42. Connecting plate; 42 1. Fourth groove; 43. Connecting block; 44. First electric telescopic rod; 45. Fixing block; 451. Sixth groove; 452. Bidirectional threaded rod; 453. Slide plate; 454. Fifth motor; 46. Threaded rod; 47. Third motor; 5. First mounting block; 51. Second electric telescopic rod; 52. Second mounting block; 53. Fifth groove; 54. Fourth motor; 55. Connecting rod; 56. Third electric telescopic rod; 57. Leeb hardness tester; 6. First mounting bracket; 61. Fourth electric telescopic rod; 62. Second mounting bracket; 63. Cleaning roller; 64. Fifth motor. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 6As shown, a metal material hardness testing device includes a base plate 1, a first support plate 101 fixedly mounted on the top of the base plate 1, and two conveyor belts 3 rotatably mounted on both sides of the first support plate 101; it also includes a sorting mechanism for separating metal materials that meet and fail the hardness test; the sorting mechanism includes a second support plate 41, the second support plate 41 fixedly mounted on the top of the second support plate 41, connecting plates 42 fixedly mounted on both sides of the second support plate 41, and a connecting block 43 slidably mounted on the bottom of the two connecting plates 42 and the second support plate 41, with a first connecting block 43 fixedly connected to the bottom of the connecting block 43. An electric telescopic rod 44 is provided. A fixing block 45 is fixedly connected to the bottom of the first electric telescopic rod 44. A sixth groove 451 is provided at the bottom of the fixing block 45. Two sliding plates 453 are slidably installed on the inner surface of the sixth groove 451. A bidirectional threaded rod 452 is rotatably installed on the inner surface of the sixth groove 451. The bidirectional threaded rod 452 is threadedly connected to the two sliding plates 453. One end of the bidirectional threaded rod 452 passes through the sixth groove 451 and is fixedly connected to a fifth motor 454. The fifth motor 454 is fixedly installed on one side of the fixing block 45. A Leeb hardness tester 57 is movably installed at the bottom of the second support plate 41.

[0036] When conducting hardness tests on metal materials, staff need to store qualified and unqualified products separately. This allows staff to collect and use qualified products and collect unqualified products for reprocessing.

[0037] Leeb hardness testing is based on the principle of magnetoelectric induction. When the material being tested is subjected to impact, an instantaneous stress wave is generated inside it. This stress wave propagates to the surface of the material and causes a tiny deformation. At the same time, this deformation causes a change in the magnetic field around the material, which in turn generates an induced electromotive force in the detection coil. By measuring the magnitude of this induced electromotive force, the hardness value of the material can be calculated.

[0038] In use, the metal material to be tested is first placed on the conveyor belt 3. The metal material rotates with the conveyor belt 3 to the bottom of the fixing block 45. At this time, the fixing block 45 moves downward to contact the metal material. The output shaft of the fifth motor 454 drives the bidirectional threaded rod 452 to rotate. The bidirectional threaded rod 452 drives the two sliding plates 453 to move closer to each other and clamp the metal material. Then, the metal material moves with the fixing block 45 to the top of the first support plate 101. After the fixing block 45 moves the metal material to the top of the first support plate 101, the Leeb hardness tester 57 tests the hardness of the metal material. Metal materials that meet the standard are moved back to the top of the initial conveyor belt 3 by the fixing block 45. Metal materials that do not meet the standard are moved to the top of another conveyor belt 3 for classification and collection.

[0039] Furthermore, such as Figure 2 As shown, four first support legs 11 are fixedly installed on the top of the base plate 1, and the first support plate 101 is fixedly installed on the top of the four first support legs 11. Two protective plates 12 are fixedly installed on the top of the base plate 1, and two first grooves 13 are opened on the top of the first support plate 101.

[0040] Two clamping plates 2 are slidably installed on the inner surfaces of the two first grooves 13. A first threaded groove 21 is provided on one side of each clamping plate 2. A bidirectional threaded rod 22 is rotatably installed on the inner surface of the first groove 13. The bidirectional threaded rod 22 is rotatably installed on the inner surface of the first threaded groove 21. One end of the bidirectional threaded rod 22 passes through the first groove 13 and is fixedly connected to a first pulley 23. The two first pulleys 23 are driven by a first belt 24. A first motor 25 is fixedly connected to one side of each first pulley 23. The first motor 25 is fixedly installed on one side of the first support plate 101.

[0041] When in use, the first motor 25 drives the first pulley 23 to rotate via the output shaft. Through the first belt 24, the two first pulleys 23 drive the two first threaded rods 22 to rotate. The two first threaded rods 22 simultaneously drive the two clamping plates 2 to move towards each other. The two clamping plates 2 can clamp the metal material on top of the first support plate 101.

[0042] Furthermore, such as Figure 3 As shown, the bottom of the first support plate 101 is provided with a second groove 31, and a drive shaft 32 is rotatably mounted on the inner surface of the second groove 31. The two ends of the drive shaft 32 pass through the second groove 31 and are fixedly connected to a second pulley 35. The bottom of the first support plate 101 is fixedly connected to a second motor 34, and the output shaft of the second motor 34 and the outer surface of the drive shaft 32 are together wound with a second belt 33.

[0043] Two conveyor rollers 37 are rotatably installed between the first support plate 101 and the guard plate 12 on the same side. One end of one of the conveyor rollers 37 is fixedly connected to a third pulley 371. The third pulley 371 and the second pulley 35 on the same side are driven by a third belt 36. The two conveyor rollers 37 on the same side are driven by a conveyor belt 3.

[0044] In use, the second motor 34 is started, and the output shaft of the second motor 34 rotates through the second belt 33. The output shaft of the second motor 34 drives the transmission shaft 32 to rotate, and the two ends of the transmission shaft 32 drive the two second pulleys 35 to rotate. Through the transmission of the two third belts 36, the two conveyor rollers 37 on the same side start to rotate. Furthermore, since the conveyor belt 3 connects the two conveyor rollers 37, the conveyor belt 3 also rotates under the drive of the conveyor rollers 37, thereby achieving the purpose of conveying metal materials through the conveyor belt 3. By rotating the two conveyor belts 3, the metal materials on the two conveyor belts 3 can be transferred to different positions, thereby achieving the purpose of distinguishing the metal materials.

[0045] Furthermore, such as Figure 4 As shown, four second support legs 4 are fixedly installed on the top of the first support plate 101. The four second support legs 4 are fixedly installed together on the bottom of the second support plate 41. A third groove 411 is opened at the bottom of the second support plate 41. A fourth groove 421 is opened at the bottom of the connecting plate 42. The third groove 411 communicates with the inner cavity of the two fourth grooves 421. A threaded rod 46 is rotatably installed in the inner cavity of the third groove 411 and the two fourth grooves 421. The threaded rod 46 is threadedly connected to the connecting block 43. A third motor 47 is fixedly connected to one end of the threaded rod 46. The third motor 47 is fixedly installed on one side of the connecting plate 42.

[0046] In use, the second threaded rod 46 is rotated by the output shaft of the third motor 47. The second threaded rod 46 is threadedly connected to the connecting block 43. When the second threaded rod 46 rotates, it can drive the connecting block 43 to slide in the inner cavity of the third groove 411 and the fourth groove 421. In use, the first electric telescopic rod 44 can adjust the height of the fixed block 45. Controlling the movement of the connecting block 43 can adjust the horizontal position of the fixed block 45, thereby achieving the purpose of moving the metal material.

[0047] Furthermore, such as Figure 5 and Figure 6As shown, a first mounting block 5 is fixedly installed at the bottom of the second support plate 41. A second electric telescopic rod 51 is fixedly connected to one side of the first mounting block 5. A second mounting block 52 is fixedly connected to the output end of the second electric telescopic rod 51. A fifth groove 53 is provided on one side of the second mounting block 52. A fourth motor 54 is fixedly installed at the bottom of the second mounting block 52. The output shaft of the fourth motor 54 passes through the inner cavity of the fifth groove 53. A connecting rod 55 is rotatably installed in the inner cavity of the fifth groove 53. The connecting rod 55 is fixedly connected to the output shaft of the fourth motor 54. A third electric telescopic rod 56 is fixedly connected to the bottom of the connecting rod 55. The Leeb hardness tester 57 is fixedly installed at the bottom of the third electric telescopic rod 56. A first mounting bracket 6 is fixedly installed on one side of the second support plate 41. A fourth electric telescopic rod 61 is fixedly installed at the bottom of the first mounting bracket 6. A second mounting bracket 62 is fixedly connected to the output end of the fourth electric telescopic rod 61. A cleaning roller 63 is rotatably installed on the inner surface of the second mounting bracket 62. A fifth motor 64 is fixedly installed on one side of the second mounting bracket 62. The output shaft of the fifth motor 64 is fixedly connected to one side of the cleaning roller 63.

[0048] In use, the position of the Leeb hardness tester 57 is adjusted according to the different positions of the metal material. Since the fixing block 45 is on top of the metal material when moving it, and the Leeb hardness tester 57 is also on top of the metal material when testing it, in order to prevent them from interfering with each other, the fixing block 45 is moved away after the metal material is placed on top of the first support plate 101. At this time, the second electric telescopic rod 51 controls the Leeb hardness tester 57 to be in the same vertical plane as the metal material. Then, the output shaft of the fourth motor 54 drives the connecting rod 55 to rotate, driving the Leeb hardness tester 57 to be on top of the metal material. The third electric telescopic rod 56 extends to reduce the distance between the Leeb hardness tester 57 and the metal material, thereby facilitating the testing of the metal material.

[0049] To avoid dust on the surface of the metal material affecting the test results, it is necessary to clean the dust on the surface of the metal material in the test chamber. When the metal material is placed on top of the conveyor belt 3 and moves with the conveyor belt 3, the metal material will pass the bottom of the cleaning roller 63. At this time, the output shaft of the fifth motor 64 drives the cleaning roller 63 to rotate on the surface of the metal material to clean the dust on the surface of the metal material. The height of the cleaning roller 63 can also be controlled by extending and retracting the fourth electric telescopic rod 61. When testing thinner or thicker metal materials, the position of the cleaning roller 63 can be adjusted by extending and retracting the fourth electric telescopic rod 61.

[0050] A method for testing the hardness of metallic materials, the method comprising the following steps:

[0051] S1: First, place the metal material to be tested on the conveyor belt 3, and clean the surface of the metal material by rotating the cleaning roller 63;

[0052] S2: The metal material at the top of the conveyor belt 3 is clamped to the top of the first support plate 101 by the fixing block 45 and the hardness of the metal material is tested by the Leeb hardness tester 57.

[0053] S3: Metal materials that pass the hardness test are brought back to the top of conveyor belt 3 by Leeb hardness tester 57, and the staff collect and store them.

[0054] S4: Metal materials that fail the hardness test are carried by the Leeb hardness tester 57 to the top of another conveyor belt 3, where workers collect and reprocess them.

[0055] Working principle: First, the metal material to be tested is placed on top of the conveyor belt 3. The output shaft of the second motor 34 drives the transmission shaft 32 to rotate, which is then driven by two third belts 36. All four conveyor rollers 37 of the conveyor belt 3 start rotating, and the conveyor belt 3 also rotates. The conveyor belt 3 then carries the metal material on top. When the metal material passes the bottom of the cleaning roller 63, the cleaning roller 63 cleans the dust from the surface of the metal material under the action of the output shaft of the fifth motor 64. Then, the first electric telescopic rod 44 drives the fixed block 45 to descend to the top of the metal material and passes through two sliding plates 453 to guide the metal material... The clamping process begins, followed by the output shaft of the third motor 47 rotating the second threaded rod 46 and driving the connecting block 43 to the top of the first support plate 101. At this time, the metal material also moves to the top of the first support plate 101. The first electric telescopic rod 44 extends the fixing block 45 away from the metal material, and the metal material falls to the top of the first support plate 101. The output shaft of the first motor 25 rotates the first pulley 23. Through the transmission of the first belt 24, both first pulleys 23 begin to rotate and drive the two first threaded rods 22 to rotate respectively. The two first threaded rods 22 further bring the two clamping plates 2 closer to each other to clamp and fix the metal material.

[0056] The connecting block 43 moves the fixed block 45 to a new position, the second electric telescopic rod 51 extends and the output shaft of the fourth motor 54 rotates the connecting rod 55. The connecting rod 55, in conjunction with the third electric telescopic rod 56, positions the Leeb hardness tester 57 on top of the metal material. The Leeb hardness tester 57 tests the hardness of the metal material. For qualified metal materials, the two sliding plates 453 carry them to the top of the initial conveyor belt 3. For unqualified metal materials, the fixed block 45 carries them to the top of another conveyor belt 3.

[0057] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A metal material hardness testing device, comprising a base plate (1), wherein a first support plate (101) is fixedly installed on the top of the base plate (1), and conveyor belts (3) are rotatably installed on both sides of the first support plate (101); It also includes a sorting mechanism to separate metal materials that meet or fail the hardness test. Its features are: The sorting mechanism includes a second support plate (41), which is fixedly installed on the top of the base plate (1). Connecting plates (42) are fixedly installed on both sides of the second support plate (41). A connecting block (43) is slidably installed on the bottom of the two connecting plates (42) and the second support plate (41). A first electric telescopic rod (44) is fixedly connected to the bottom of the connecting block (43). A fixing block (45) is fixedly connected to the bottom of the first electric telescopic rod (44). A sixth groove (451) is provided at the bottom of the fixing block (45). Two sliding plates (453) are slidably installed on the inner surface of the sixth groove (451). A second bidirectional threaded rod (452) is rotatably installed on the inner surface of the sixth groove (451). The second bidirectional threaded rod (452) is threadedly connected to the two sliding plates (453). One end of the second bidirectional threaded rod (452) passes through the sixth groove (451) and is fixedly connected to a fifth motor (454). The fifth motor (454) is fixedly installed on one side of the fixing block (45). A Leeb hardness tester (57) is movably installed at the bottom of the second support plate (41). Four first support legs (11) are fixedly installed on the top of the base plate (1), and the first support plate (101) is fixedly installed on the top of the four first support legs (11). Two guard plates (12) are fixedly installed on the top of the base plate (1), and two first grooves (13) are opened on the top of the first support plate (101). Two clamping plates (2) are slidably installed on the inner surfaces of the two first grooves (13). A first threaded groove (21) is provided on one side of the clamping plate (2). A first bidirectional threaded rod (22) is rotatably installed on the inner surface of the first groove (13). The first bidirectional threaded rod (22) is rotatably installed on the inner surface of the first threaded groove (21). One end of the first bidirectional threaded rod (22) passes through the first groove (13) and is fixedly connected to a first pulley (23). The two first pulleys (23) are driven by a first belt (24). A first motor (25) is fixedly connected on one side of the first pulley (23). The first motor (25) is fixedly installed on one side of the first support plate (101). The first support plate (101) has a second groove (31) at the bottom. A drive shaft (32) is rotatably mounted on the inner surface of the second groove (31). The two ends of the drive shaft (32) pass through the second groove (31) and are fixedly connected to a second pulley (35). A second motor (34) is fixedly connected to the bottom of the first support plate (101). The output shaft of the second motor (34) and the outer surface of the drive shaft (32) are wound together with a second belt (33). Four second support legs (4) are fixedly installed on the top of the first support plate (101). The four second support legs (4) are fixedly installed together on the bottom of the second support plate (41). A third groove (411) is opened at the bottom of the second support plate (41). A fourth groove (421) is opened at the bottom of the connecting plate (42). The third groove (411) communicates with the inner cavity of the two fourth grooves (421). A threaded rod (46) is rotatably installed together with the inner cavity of the third groove (411) and the two fourth grooves (421). The threaded rod (46) is threadedly connected to the connecting block (43). A third motor (47) is fixedly connected to one end of the threaded rod (46). The third motor (47) is fixedly installed on one side of the connecting plate (42). A first mounting block (5) is fixedly installed at the bottom of the second support plate (41). A second electric telescopic rod (51) is fixedly connected to one side of the first mounting block (5). A second mounting block (52) is fixedly connected to the output end of the second electric telescopic rod (51). A fifth groove (53) is opened on one side of the second mounting block (52). A fourth motor (54) is fixedly installed at the bottom of the second mounting block (52). The output shaft of the fourth motor (54) passes through the inner cavity of the fifth groove (53). A connecting rod (55) is rotatably installed in the inner cavity of the fifth groove (53). The connecting rod (55) is fixedly connected to the output shaft of the fourth motor (54). (55) A third electric telescopic rod (56) is fixedly connected to the bottom. The Leeb hardness tester (57) is fixedly installed at the bottom of the third electric telescopic rod (56). A first mounting bracket (6) is fixedly installed on one side of the second support plate (41). A fourth electric telescopic rod (61) is fixedly installed at the bottom of the first mounting bracket (6). A second mounting bracket (62) is fixedly connected to the output end of the fourth electric telescopic rod (61). A cleaning roller (63) is rotatably installed on the inner surface of the second mounting bracket (62). A sixth motor (64) is fixedly installed on one side of the second mounting bracket (62). The output shaft of the sixth motor (64) is fixedly connected to one side of the cleaning roller (63).

2. The metal material hardness testing device according to claim 1, characterized in that: Two conveyor rollers (37) are rotatably installed between the first support plate (101) and the guard plate (12) on the same side. One of the conveyor rollers (37) is fixedly connected to a third pulley (371) at one end. The third pulley (371) and the second pulley (35) on the same side are driven by a third belt (36). The two conveyor rollers (37) on the same side are driven by a conveyor belt (3).

3. The detection method of the metal material hardness testing device according to any one of claims 1-2, characterized in that, The method includes the following steps: S1: First, place the metal material to be tested on the conveyor belt (3) and clean the surface of the metal material by rotating the cleaning roller (63); S2: The metal material at the top of the conveyor belt (3) is clamped to the top of the first support plate (101) by the fixing block (45) and the hardness of the metal material is tested by the Leeb hardness tester (57); S3: Metal materials that pass the hardness test are brought back to the top of the conveyor belt (3) by the fixing block (45), and the staff collect and store them; S4: Metal materials that fail the hardness test are carried by a fixed block (45) to the top of another conveyor belt (3), where workers collect and reprocess them.

Images