Metal material hardness detection device and detection method

Abstract

The metal material hardness detection device comprises a bottom plate, a first supporting plate is fixedly mounted at the top of the bottom plate, and two conveying belts are rotationally mounted on the two sides of the first supporting plate correspondingly; the sorting mechanism is used for separating the metal materials with the hardness reaching the standard and the metal materials with the hardness not reaching the standard through detection; the sorting mechanism comprises a second supporting plate, the second supporting plate is fixedly mounted at the top of the second supporting plate, and connecting plates are fixedly mounted on the two sides of the second supporting plate; a connecting block drives a fixing block to move, a second electric telescopic rod extends, an output shaft of a fourth motor drives a connecting rod to rotate, the connecting rod is matched with a third electric telescopic rod to enable a Leeb hardness tester to be located at the top of a metal material, and the Leeb hardness tester detects the hardness of the metal material. And qualified metal materials are carried to the top of the initial conveying belt by the fixing blocks, and unqualified metal materials are carried to the top of the other conveying belt by the fixing blocks.

Description

Technical Field

[0001] The present invention relates to the technical field of metal material hardness detection, in particular to a metal material hardness detection device and a detection method. Background Art

[0002] The use of metal materials is becoming more and more widespread. Metal materials have high hardness and are not easy to damage. During the construction process, in order to ensure the long-term use of the project or project, aluminum alloy may be used if environmental conditions and other conditions permit. Aluminum alloy has a long service life and is relatively hard, so it is not easy to damage. During the production process of aluminum alloy, the hardness of aluminum alloy needs to be tested, which is convenient for selective use in the later stage. When testing the hardness of aluminum alloy, it is usually necessary to select a hardness testing device to test it.

[0003] After searching, the patent document with publication number CN219142543U discloses a metal material hardness testing device, which includes a testing device body, a cylinder is arranged inside the testing device body, and a testing plate is connected to the top of the cylinder, and a workbench is arranged below the testing plate, a fixing mechanism is arranged outside the workbench, and a driving mechanism is arranged inside the testing device body.

[0004] The metal material hardness testing device fixes the metal material while the workbench moves. The two operate synchronously at the same time, which saves time and improves the overall testing efficiency. However, after detecting unqualified products, it is impossible to automatically distinguish qualified products from unqualified products, and staff are required to distinguish and collect all products.

[0005] Therefore, in order to solve the above problems, a metal material hardness detection device and detection method are proposed. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art and solve the problem that the detection device cannot directly distinguish qualified products from unqualified products, the present invention proposes a metal material hardness detection device and a detection method.

[0007] A metal material hardness testing device comprises a bottom plate, a first support plate is fixedly mounted on the top of the bottom plate, and two conveyor belts are rotatably mounted on both sides of the first support plate;

[0008] It also includes a sorting mechanism for separating metal materials that meet the hardness test standards and those that do not meet the standards;

[0009] The sorting mechanism includes a second support plate, the second support plate is fixedly mounted on the top of the second support plate, connecting plates are fixedly mounted on both sides of the second support plate, a connecting block is slidably mounted 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 fixed block is fixedly connected to the bottom of the first electric telescopic rod, a sixth groove is provided at the bottom of the fixed block, two slides are slidably mounted on the inner surface of the sixth groove, a bidirectional threaded rod is rotatably mounted on the inner surface of the sixth groove, the bidirectional threaded rod is threadedly connected to the two slides, 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 mounted on one side of the fixed block, and a Leeb hardness tester is movably mounted on the bottom of the second support plate.

[0010] Preferably, four first supporting legs are fixedly installed on the top of the base plate, the first supporting plate is fixedly installed on the top of the four first supporting legs, two guard plates are fixedly installed on the top of the base plate, and two first grooves are opened on the top of the first supporting plate.

[0011] Preferably, two clamps are slidably installed on the inner surfaces of the two first grooves together, a first thread groove is opened on one side of the clamp, 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 thread 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, one side of the first pulley is fixedly connected to a first motor, and the first motor is fixedly installed on one side of the first support plate.

[0012] Preferably, a second groove is provided at the bottom of the first support plate, a transmission shaft is rotatably installed on the inner surface of the second groove, both ends of the transmission shaft pass through the second groove and are fixedly connected with a second pulley, a second motor is fixedly connected to the bottom of the first support plate, and a second belt is wrapped around the output shaft of the second motor and the outer surface of the transmission 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 supporting legs are fixedly installed on the top of the first supporting plate, and the four second supporting legs are jointly fixedly installed on the bottom of the second supporting plate. A third groove is opened at the bottom of the second supporting plate, and a fourth groove is opened at the bottom of the connecting plate. The third groove is connected with the inner cavities of the two fourth grooves, and a threaded rod is rotatably installed in the third groove and the inner cavities of the two fourth grooves. The threaded rod is threadedly connected to the connecting block, and one end of the threaded rod is fixedly connected to a third motor, and the third motor is fixedly installed on one side of the connecting plate.

[0015] Preferably, a first mounting block is fixedly installed on the bottom of the second supporting plate, a second electric telescopic rod is fixedly connected to one side of the first mounting block, an output end of the second electric telescopic rod is fixedly connected to the second mounting block, a fifth groove is opened on one side of the second mounting block, a fourth motor is fixedly installed on the bottom of the second mounting block, an 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 on the bottom of the third electric telescopic rod, a first mounting bracket is fixedly installed on one side of the second supporting plate, a fourth electric telescopic rod is fixedly installed on the bottom of the first mounting bracket, the output end of the fourth electric telescopic rod is fixedly connected to the second mounting bracket, a cleaning roller is rotatably installed on the inner surface of the second mounting bracket, a fifth motor is fixedly installed on one side of the second mounting bracket, and the output shaft of the fifth motor is fixedly connected to one side of the cleaning roller.

[0016] A method for detecting the hardness of a metal material, 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: clamping the metal material on the top of the conveyor belt to the top of the first support plate by a fixing block and testing the hardness of the metal material by a Leeb hardness tester;

[0019] S3: The metal materials that pass the hardness test are brought back to the top of the conveyor belt by the Leeb hardness tester, and the staff collects and stores them;

[0020] S4: Metal materials that fail the hardness test are taken to the top of another conveyor belt by the Leeb hardness tester, where they are collected and reprocessed by staff.

[0021] The present invention is beneficial in that:

[0022] 1. The present invention drives the fixed block to descend to the top of the metal material through the first electric telescopic rod and clamps the metal material through two slides, then the third motor output shaft drives the second threaded rod to rotate and drives the connecting block to the top of the first support plate, at this time the metal material will also move to the top of the first support plate, at this time the first electric telescopic rod extends the two slide blocks and no longer clamps the metal material, the metal material falls to the top of the first support plate, the first motor output shaft drives the first pulley to rotate, through the first belt transmission, the two first pulleys start to rotate and respectively drive the two first threaded rods to rotate, the two first threaded rods further make the two clamping plates close to each other to clamp and fix the metal material.

[0023] 2. The present invention drives the transmission shaft to rotate through the second motor output shaft, which is driven by two third belts and cooperates with the four conveyor rollers of the conveyor belt to start rotating, and the conveyor belt is also rotating, so that the conveyor belt moves with the metal material on the top. When the metal material passes through the bottom of the cleaning roller, the cleaning roller is driven by the fifth motor output shaft to rotate, and the cleaning roller cleans the dust on the surface of the metal material.

[0024] 3. The present invention moves the fixed block by the connecting block, the second electric telescopic rod is extended and the fourth motor output shaft rotates the connecting rod, the connecting rod cooperates with the third electric telescopic rod to make the Leeb hardness tester at the top of the metal material, the Leeb hardness tester detects the hardness of the metal material, and the qualified metal material is brought to the top of the initial conveyor belt by the fixed block, and the unqualified metal material is brought to the top of another conveyor belt by the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0027] Figure 2 A schematic diagram of a splint connection structure according to an embodiment of the present invention;

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

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

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

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

[0032] Figure 7 The present invention is a flowchart of an embodiment of the present invention.

[0033] In the figure: 1, bottom plate; 101, first support plate; 11, first support leg; 12, guard plate; 13, first groove; 2, clamping plate; 21, first thread groove; 22, bidirectional threaded rod; 23, first pulley; 24, first belt; 25, first motor; 3, conveyor belt; 31, second groove; 32, transmission 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. Fixed 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 frame; 61. Fourth electric telescopic rod; 62. Second mounting frame; 63. Cleaning roller; 64. Fifth motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 6As shown, a metal material hardness testing device comprises a bottom plate 1, a first support plate 101 is fixedly mounted on the top of the bottom plate 1, and two conveyor belts 3 are rotatably mounted on both sides of the first support plate 101; a sorting mechanism is also included for separating metal materials that meet the hardness test standard and those that do not meet the standard; the sorting mechanism comprises a second support plate 41, the second support plate 41 is fixedly mounted on the top of the second support plate 41, connecting plates 42 are fixedly mounted on both sides of the second support plate 41, and connecting blocks 43 are slidably mounted on the bottom of the two connecting plates 42 and the second support plate 41, and the bottom of the connecting block 43 is fixedly connected to the second support plate 41. An electric telescopic rod 44, wherein 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 slides 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 slides 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, and 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 products and unqualified products separately, so that staff can collect qualified products for use later and collect unqualified products for reprocessing.

[0037] Leeb hardness testing is based on the principle of magneto-electric induction. When the material being tested is impacted, an instantaneous stress wave will be generated inside it. This stress wave will propagate to the surface of the material and produce a tiny deformation. At the same time, this deformation will cause changes in the magnetic field around the material, and then generate an induced electromotive force in the detection coil. By measuring the size of this induced electromotive force, the hardness value of the material can be calculated.

[0038] When the present invention is in use, the metal material to be tested is first placed on the conveyor belt 3, and the metal material rotates with the conveyor belt 3 to the bottom of the fixed block 45. At this time, the fixed block 45 moves downward to contact the metal material. At this time, the output shaft of the fifth motor 454 rotates with the bidirectional threaded rod 452, and the bidirectional threaded rod 452 drives the two slides 453 to approach each other to clamp the metal material. Then the metal material moves with the fixed block 45 to the top of the first support plate 101. After the fixed 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. The metal material that meets the standard is moved again to the top of the initial conveyor belt 3 by the fixed block 45, and the unqualified metal material is moved to the top of another conveyor belt 3, and the metal material is classified and collected.

[0039] Further, such as Figure 2 As shown, four first supporting legs 11 are fixedly installed on the top of the bottom plate 1, the first supporting plate 101 is fixedly installed on the top of the four first supporting legs 11, two guard plates 12 are fixedly installed on the top of the bottom plate 1, and two first grooves 13 are provided on the top of the first supporting plate 101;

[0040] Two clamping plates 2 are slidably installed on the inner surfaces of the two first grooves 13 together, a first thread groove 21 is opened on one side of the 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 thread 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, one side of the first pulley 23 is fixedly connected to a first motor 25, and the first motor 25 is fixedly installed on one side of the first support plate 101.

[0041] When the present invention is in use, the output shaft of the first motor 25 drives the first pulley 23 to rotate, and through the transmission of the first belt 24, the two first pulleys 23 respectively drive the two first threaded rods 22 to rotate, and the two first threaded rods 22 simultaneously drive the two clamps 2 to move toward each other, and the two clamps 2 can clamp the metal material on the top of the first support plate 101.

[0042] Further, such as Figure 3 As shown, a second groove 31 is opened at the bottom of the first support plate 101, a transmission shaft 32 is rotatably installed on the inner surface of the second groove 31, two ends of the transmission shaft 32 pass through the second groove 31 and are fixedly connected with a second pulley 35, a second motor 34 is fixedly connected to the bottom of the first support plate 101, and a second belt 33 is installed on the output shaft of the second motor 34 and the outer surface of the transmission shaft 32 together;

[0043] Two conveying 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 conveying 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 via a third belt 36, and the two conveying rollers 37 on the same side are driven via a conveyor belt 3.

[0044] When the present invention is in use, the second motor 34 is started, and the output shaft of the second motor 34 rotates and is transmitted 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 respectively drive the two second pulleys 35 to rotate. After being driven by 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 driven by the conveyor rollers 37, thereby achieving the purpose of conveying the metal material through the conveyor belt 3. By rotating the two conveyor belts 3, the metal materials on the two conveyor belts 3 can be transported to different positions respectively, thereby achieving the purpose of distinguishing the metal materials.

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

[0046] When the present invention is in use, the output shaft of the third motor 47 drives the second threaded rod 46 to rotate. 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 cavities of the third groove 411 and the fourth groove 421. When 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] Further, 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 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, and 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, and the Leeb hardness tester 57 is fixedly installed at the bottom of the third electric telescopic rod 56. A first mounting frame 6 is fixedly installed on one side of the second supporting plate 41, and a fourth electric telescopic rod 61 is fixedly installed on the bottom of the first mounting frame 6. The output end of the fourth electric telescopic rod 61 is fixedly connected to a second mounting frame 62, and a cleaning roller 63 is rotatably installed on the inner surface of the second mounting frame 62. A fifth motor 64 is fixedly installed on one side of the second mounting frame 62, and the output shaft of the fifth motor 64 is fixedly connected to one side of the cleaning roller 63.

[0048] When the present invention is in use, the position of the Leeb hardness tester 57 is adjusted according to the different positions of the metal material. At the same time, since the fixed block 45 is at the top of the metal material when the metal material is moved, and the Leeb hardness tester 57 is also at the top of the metal material when the metal material is detected, in order to prevent the two from affecting each other, the fixed block 45 will be moved away after the metal material is placed on the top of the first support plate 101. At this time, the Leeb hardness tester 57 is controlled by the second electric telescopic rod 51 so that the Leeb hardness tester 57 and the metal material are in the same vertical plane. Then the output shaft of the fourth motor 54 rotates with the connecting rod 55, driving the Leeb hardness tester 57 to be at the top of the metal material, and the distance between the Leeb hardness tester 57 and the metal material is reduced by the extension of the third electric telescopic rod 56, thereby facilitating the detection of the metal material.

[0049] In order to prevent the dust on the surface of the metal material from affecting the detection results, it is necessary to clean the dust on the surface of the metal material in the detection chamber. When the metal material is placed on the top of the conveyor belt 3 and moves with the conveyor belt 3, the metal material will pass through 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 be controlled by extending and shortening the fourth electric telescopic rod 61. When detecting thinner or thicker metal materials, the position of the cleaning roller 63 can be adjusted by extending and shortening the fourth electric telescopic rod 61.

[0050] A method for detecting the hardness of a metal material, 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: clamping the metal material on the top of the conveyor belt 3 to the top of the first support plate 101 by the fixing block 45 and testing the hardness of the metal material by the Leeb hardness tester 57;

[0053] S3: The metal materials that pass the hardness test are brought back to the top of the conveyor belt 3 by the Leeb hardness tester 57, and the staff collects and stores them;

[0054] S4: The metal materials that fail the hardness test are brought to the top of another conveyor belt 3 by the Leeb hardness tester 57, and the staff collects and reprocesses them.

[0055] Working principle: First, place the metal material to be tested on the top of the conveyor belt 3, and the second motor 34 output shaft drives the transmission shaft 32 to rotate, which is then driven by two third belts 36, and the four conveyor rollers 37 of the conveyor belt 3 all start to rotate, and the conveyor belt 3 is also rotating, so that the conveyor belt 3 moves with the metal material on the top. When the metal material passes the bottom of the cleaning roller 63, the cleaning roller 63 is driven by the fifth motor 64 output shaft to rotate, and the cleaning roller 63 cleans the dust on the surface of the metal material. Then the first electric telescopic rod 44 drives the fixed block 45 to descend to the top of the metal material and cleans the metal material through two slide plates 453. The metal material is clamped, and then the output shaft of the third motor 47 rotates with the second threaded rod 46, and drives the connecting block 43 to the top of the first support plate 101. At this time, the metal material will also move to the top of the first support plate 101. At this time, 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 with the first pulley 23. After the first belt 24 is driven, the two first pulleys 23 start to rotate and respectively drive the two first threaded rods 22 to rotate. The two first threaded rods 22 further make the two clamping plates 2 close to each other to clamp the metal material.

[0056] By moving the fixed block 45 with the connecting block 43, the second electric telescopic rod 51 is extended and the output shaft of the fourth motor 54 rotates the connecting rod 55. The connecting rod 55 cooperates with the third electric telescopic rod 56 to make the Leeb hardness tester 57 at the top of the metal material. The Leeb hardness tester 57 detects the hardness of the metal material. For qualified metal materials, the two slides 453 bring them to the top of the initial conveyor belt 3. For unqualified metal materials, the fixed block 45 brings them to the top of another conveyor belt 3.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above shows and describes 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, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A metal material hardness testing device, comprising a base plate (1), a first support plate (101) being fixedly mounted on the top of the base plate (1), and two conveyor belts (3) being rotatably mounted on both sides of the first support plate (101); It also includes a sorting mechanism for separating metal materials that meet the hardness test standards and those that do not meet the standards; Features: The sorting mechanism comprises a second support plate (41), the second support plate (41) is fixedly mounted on the top of the second support plate (41), connecting plates (42) are fixedly mounted on both sides of the second support plate (41), a connecting block (43) is slidably mounted on the bottom of the two connecting plates (42) and the second support plate (41), the bottom of the connecting block (43) is fixedly connected to a first electric telescopic rod (44), the bottom of the first electric telescopic rod (44) is fixedly connected to a fixing block (45), and the bottom of the fixing block (45) is provided with a sixth groove ( 451), two slide plates (453) are slidably mounted on the inner surface of the sixth groove (451), a bidirectional threaded rod (452) is rotatably mounted on the inner surface of the sixth groove (451), the bidirectional threaded rod (452) is threadedly connected to the two slide 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 mounted on one side of the fixed block (45), and a Leeb hardness tester (57) is movably mounted on the bottom of the second support plate (41).

2. A metal material hardness detection device according to claim 1, characterized in that: Four first supporting legs (11) are fixedly mounted on the top of the base plate (1), the first supporting plate (101) is fixedly mounted on the top of the four first supporting legs (11), two guard plates (12) are fixedly mounted on the top of the base plate (1), and two first grooves (13) are provided on the top of the first supporting plate (101).

3. A metal material hardness detection device according to claim 2, characterized in that: Two clamping plates (2) are slidably mounted on the inner surfaces of the two first grooves (13); a first thread groove (21) is provided on one side of the clamping plate (2); a bidirectional threaded rod (22) is rotatably mounted on the inner surface of the first groove (13); the bidirectional threaded rod (22) is rotatably mounted on the inner surface of the first thread 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 the first pulley (23); and the first motor (25) is fixedly mounted on one side of the first support plate (101).

4. A metal material hardness detection device according to claim 3, characterized in that: A second groove (31) is provided at the bottom of the first support plate (101), a transmission shaft (32) is rotatably mounted on the inner surface of the second groove (31), both ends of the transmission 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), and a second belt (33) is wound around the output shaft of the second motor (34) and the outer surface of the transmission shaft (32).

5. A metal material hardness detection device according to claim 4, characterized in that: Two conveying 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 conveying 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 via a third belt (36), and the two conveying rollers (37) on the same side are driven via a conveyor belt (3).

6. A metal material hardness testing device according to claim 5, characterized in that: Four second supporting legs (4) are fixedly mounted on the top of the first supporting plate (101), and the four second supporting legs (4) are fixedly mounted on the bottom of the second supporting plate (41). A third groove (411) is provided on the bottom of the second supporting plate (41), and a fourth groove (421) is provided on the bottom of the connecting plate (42). The inner cavities of the third groove (411) and the two fourth grooves (421) are interconnected, and a threaded rod (46) is rotatably mounted on the inner cavities of the third groove (411) and the two fourth grooves (421), and the threaded rod (46) is threadedly connected to the connecting block (43), and one end of the threaded rod (46) is fixedly connected to a third motor (47), and the third motor (47) is fixedly mounted on one side of the connecting plate (42).

7. A metal material hardness detection device according to claim 6, characterized in that: A first mounting block (5) is fixedly mounted on 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); an output end of the second electric telescopic rod (51) is fixedly connected to a second mounting block (52); a fifth groove (53) is provided on one side of the second mounting block (52); a fourth motor (54) is fixedly mounted on the bottom of the second mounting block (52); an output shaft of the fourth motor (54) passes through an inner cavity of the fifth groove (53); a connecting rod (55) is rotatably mounted 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); and the connecting rod (55) is fixedly mounted on the inner cavity of the fifth groove (53); The bottom of the second support plate (55) is fixedly connected to a third electric telescopic rod (56), the Leeb hardness tester (57) is fixedly mounted on the bottom of the third electric telescopic rod (56), a first mounting frame (6) is fixedly mounted on one side of the second support plate (41), a fourth electric telescopic rod (61) is fixedly mounted on the bottom of the first mounting frame (6), an output end of the fourth electric telescopic rod (61) is fixedly connected to a second mounting frame (62), a cleaning roller (63) is rotatably mounted on the inner surface of the second mounting frame (62), a fifth motor (64) is fixedly mounted on one side of the second mounting frame (62), and an output shaft of the fifth motor (64) is fixedly connected to one side of the cleaning roller (63).

8. A method for detecting the hardness of a metal material, characterized in that: The method comprises the following steps: S1: First, the metal material to be tested is placed on the conveyor belt (3), and the surface of the metal material is cleaned by the rotation of the cleaning roller (63); S2: clamping the metal material on the top of the conveyor belt (3) to the top of the first support plate (101) by means of a fixing block (45) and testing the hardness of the metal material by means of a Leeb hardness tester (57); S3: The metal materials that have passed the hardness test are brought back to the top of the conveyor belt (3) by the Leeb hardness tester (57), and the staff collects and stores them; S4: The metal materials that fail the hardness test are brought to the top of another conveyor belt (3) by the Leeb hardness tester (57), where they are collected and reprocessed by staff.

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