Hardness testing device for metal material testing

Abstract

The utility model discloses a hardness testing device for metal material detection, comprising a body, a pressure head is installed at the inner upper end of the body, a lifting mechanism is installed at the inner lower end of the body, a test bench is fixedly connected to the upper end of the lifting mechanism, two side walls of the test bench are fixedly connected to two fixed seats, a rotating shaft is rotatably connected between each two mutually matched fixed seats, the two ends of the two rotating shafts respectively penetrate the corresponding fixed seats and extend to the outside, one end of the two rotating shafts is fixedly connected to a first knob, the two rotating shafts are fixedly connected to a connecting block, and one end of the two connecting blocks is fixedly connected to a fixed block. It can fix metal materials of different specifications through the cooperation of the first threaded rod, the fixed block and the movable plate, and cooperates with the second threaded rod, the guide rod and the pressure plate, so as to avoid the displacement of the metal materials affecting the test results.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hardness detection, in particular to a hardness testing device for metal material detection. Background Art

[0002] Metal materials generally refer to pure metals or alloys used in industrial applications. Metal hardness testing is the fastest, most economical and simplest test method for evaluating the mechanical properties of metals. The main purpose of hardness testing is to determine the suitability of materials, or the effect of special hardening or softening treatments performed on the materials for their intended use;

[0003] However, when using professional instruments to squeeze the metal surface to create an indentation on it, the metal material is prone to displacement, affecting the hardness test results, and it is necessary to use a splint to fix it. Due to the different specifications of metal materials, different specifications of splints need to be replaced each time for fixation, which increases the cost. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a hardness testing device for metal material testing, which can fix metal materials of different specifications through the cooperation of structures such as a first threaded rod, a fixed block and a movable plate, and cooperates with structures such as a second threaded rod, a guide rod and a pressure plate to prevent their deviation from affecting the test results.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hardness testing device for metal material testing comprises a body, a pressure head is installed at the inner upper end of the body, a lifting mechanism is installed at the inner lower end of the body, the upper end of the lifting mechanism is fixedly connected to a test bench, two side walls of the test bench are fixedly connected to two fixed seats, a rotating shaft is rotatably connected between each two mutually cooperating fixed seats, the two ends of the two rotating shafts respectively penetrate the corresponding fixed seats and extend to the outside, one end of the two rotating shafts is fixedly connected to a first knob, the two rotating shafts are fixedly connected to a connecting block, and one end of the two connecting blocks is fixedly connected to a fixed block. The opposite sides of the two fixed blocks are rotatably connected with the first threaded rod, one end of the two first threaded rods passes through the corresponding fixed blocks and is fixedly connected with the second knob, the other ends of the two first threaded rods are fixedly connected with the movable plate, the two movable plates are provided with rectangular grooves, the two rectangular grooves are rotatably connected with the second threaded rod, the two rectangular grooves are fixedly connected with the guide rod, the two second threaded rods are threadedly connected with a pressure plate, the other sides of the two pressure plates are slidably connected with the corresponding guide rod, and one end of the two second threaded rods is fixedly connected with the third knob.

[0007] Preferably, both ends of the two rotating shafts are provided with sliding grooves, and a sliding plate is slidably connected in each of the sliding grooves.

[0008] Preferably, two fixing rods are fixedly connected to the opposite sides of each two mutually matched fixing seats, and one end of each fixing rod is rotatably connected to a rotating block.

[0009] Preferably, each of the sliding plates is provided with a through opening that cooperates with the corresponding rotating block.

[0010] Preferably, the two pressing plates are both L-shaped, and a rubber layer is provided on one side of the two pressing plates.

[0011] Preferably, a plurality of supporting legs are fixedly connected to the lower end of the body, and a non-slip pad is fixedly connected to the lower ends of the plurality of supporting legs.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Set up a fixed block, a first threaded rod, a movable plate and other structures, turn the first knob to make the first threaded rod rotate and move, and then make the movable plate move, and by adjusting the distance between the two movable plates, it can fix metal materials of different lengths;

[0014] 2. Set up a second threaded rod, a guide rod, a pressure plate and other structures, turn the second knob to rotate the second threaded rod, and then move the pressure plate until the lower end of the pressure plate fits with the upper end surface of the metal material. By moving the two pressure plates, it is possible to fix metal materials of different thicknesses to prevent them from shifting and affecting the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the hardness testing device for metal material testing proposed by the utility model;

[0016] Figure 2 for Figure 1 A top view schematic diagram of

[0017] Figure 3 for Figure 2 A magnified image of point A;

[0018] Figure 4 for Figure 1 Schematic diagram of the rear side;

[0019] Figure 5 for Figure 4 Enlarged view of point B.

[0020] In the figure: 1 body, 2 pressure head, 3 lifting mechanism, 4 test bench, 5 fixed seat, 6 rotating shaft, 7 first knob, 8 connecting block, 9 fixed block, 10 first threaded rod, 11 second knob, 12 moving plate, 13 second threaded rod, 14 guide rod, 15 pressure plate, 16 third knob, 17 slide groove, 18 sliding plate, 19 fixed rod, 20 rotating block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 5 , a hardness testing device for metal material testing comprises a body 1, a plurality of supporting legs are fixedly connected to the lower end of the body 1, and the lower ends of the plurality of supporting legs are fixedly connected to anti-slip pads, a pressure head 2 is installed at the inner upper end of the body 1, and a lifting mechanism 3 is installed at the inner lower end of the body 1. The lifting mechanism 3 is a prior art and will not be described in detail here. A test bench 4 is fixedly connected to the upper end of the lifting mechanism 3, and two side walls of the test bench 4 are fixedly connected to two fixed seats 5, and a rotating shaft 6 is rotatably connected between each two mutually cooperating fixed seats 5, and the two ends of the two rotating shafts 6 respectively penetrate the corresponding fixed seats 5 and extend to the outside, and one end of the two rotating shafts 6 is fixedly connected to a first knob 7, and the two rotating shafts 6 are fixedly connected to a connecting block 8, and one end of the two connecting blocks 8 is fixedly connected to a fixing block 9, and the opposite sides of the two fixing blocks 9 are rotatably connected to a first threaded rod 10, and the middle parts of the two fixing blocks 9 are provided with screw holes, and one end of the two first threaded rods 10 penetrates the corresponding fixing block 9 and is fixedly connected to a second knob 11;

[0023] The other ends of the two first threaded rods 10 are fixedly connected to a movable plate 12. By turning the two second knobs 11, the two first threaded rods 10 are rotated and moved, and then the two movable plates 12 are moved until the two movable plates 12 are close to the two sides of the metal material. By adjusting the distance between the two movable plates 12, metal materials of different lengths can be fixed. Rectangular grooves are provided in the two movable plates 12, and the second threaded rods 13 are rotatably connected in the two rectangular grooves. Guide rods 14 are fixedly connected in the two rectangular grooves. Pressing plates 15 are threadedly connected to the two second threaded rods 13. The two pressing plates The other side of each of the two pressing plates 15 is slidably connected to the corresponding guide rod 14. The two pressing plates 15 are both L-shaped. A rubber layer is provided on one side of each of the two pressing plates 15. One end of each of the two second threaded rods 13 is fixedly connected to a third knob 16. By rotating the two third knobs 16, the two second threaded rods 13 are rotated, thereby moving the two pressing plates 15 until the lower ends of the two pressing plates 15 are in contact with the upper end surface of the metal material. By moving the two pressing plates 15, metal materials of different thicknesses can be fixed. In this way, metal materials of different specifications can be fixed to prevent them from moving during testing and affecting the hardness test results.

[0024] Among them, both ends of the two rotating shafts 6 are provided with sliding grooves 17, and each sliding groove 17 is slidably connected with a sliding plate 18, and the opposite sides of each two mutually matching fixed seats 5 are fixedly connected with two fixing rods 19, and one end of each fixing rod 19 is rotatably connected with a rotating block 20, and each sliding plate 18 is provided with a through hole that cooperates with the corresponding rotating block 20. When the two first knobs 7 are rotated, the two rotating shafts 6 are rotated, and then the corresponding fixed blocks 9 are rotated to the top or bottom through the two connecting blocks 8, multiple rotating blocks 20 can be rotated so that they are parallel to the through holes on the corresponding sliding plates 18, and then multiple sliding plates 18 can be moved to the corresponding fixing rods 19, and then multiple rotating blocks 20 can be rotated so that they are perpendicular to the through holes on the corresponding sliding plates 18, so as to limit the corresponding sliding plates 18, and then limit the rotating shaft 6. According to actual usage, it is possible to choose to use or not use the moving plate 12 and the pressing plate 15 to limit the metal material.

[0025] In the utility model, when in use, the metal material to be tested is placed on the test bench 4, and then the two second knobs 11 are turned. After the second knobs 11 are turned, the corresponding first threaded rods 10 are rotated. Since the two first threaded rods 10 are threadedly matched with the fixing block 9, the first threaded rods 10 are moved, so that the two first threaded rods 10 can drive the corresponding moving plates 12 to move until they are close to one side of the metal material. By adjusting the distance between the two moving plates 12, metal materials of different lengths can be fixed;

[0026] Then the two third knobs 16 can be rotated, and the two third knobs 16 rotate with the corresponding second threaded rods 13, and with the cooperation of the two guide rods 14, the two pressing plates 15 are moved until their lower ends are in contact with the upper surface of the metal material. By moving the two pressing plates 15, metal materials of different thicknesses can be fixed, so that metal materials of different specifications can be fixed to avoid displacement during testing and affecting the test results. Then the test bench 4 can be moved to a suitable position to perform hardness testing on the metal material;

[0027] In addition, the two first knobs 7 can be rotated to rotate the two rotating shafts 6, and then the two fixed blocks 9 can be rotated through the two connecting blocks 8. When the fixed block 9 is rotated to the top or bottom, the multiple rotating blocks 20 can be rotated so that the multiple rotating blocks 20 are parallel to the corresponding openings on the sliding plate 18, and then the multiple sliding plates 18 are moved to the fixed rod 19, and then the multiple rotating blocks 20 are rotated so that the multiple rotating blocks 20 are perpendicular to the corresponding openings on the sliding plate 18. At this time, the multiple sliding plates 18 are limited, the two rotating shafts 6 are limited, and then the two fixed blocks 9 are limited. According to actual usage, you can choose to use or not use the movable plate 12 and the pressure plate 15 to limit the metal material.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hardness testing device for metal material testing, comprising a body (1), characterized in that: A pressure head (2) is installed at the inner upper end of the body (1), a lifting mechanism (3) is installed at the inner lower end of the body (1), the upper end of the lifting mechanism (3) is fixedly connected to a test bench (4), two side walls of the test bench (4) are fixedly connected to two fixed seats (5), a rotating shaft (6) is rotatably connected between each two mutually matching fixed seats (5), the two ends of the two rotating shafts (6) respectively penetrate the corresponding fixed seats (5) and extend to the outside, and one end of the two rotating shafts (6) is fixedly connected to a first knob (7); The two rotating shafts (6) are fixedly connected with a connecting block (8), one end of the two connecting blocks (8) is fixedly connected with a fixing block (9), the opposite sides of the two fixing blocks (9) are rotatably connected with a first threaded rod (10), one end of the two first threaded rods (10) passes through the corresponding fixing block (9) and is fixedly connected with a second knob (11), and the other end of the two first threaded rods (10) is fixedly connected with a moving plate (12); A rectangular groove is provided in each of the two movable plates (12), a second threaded rod (13) is rotatably connected in each of the two rectangular grooves, a guide rod (14) is fixedly connected in each of the two rectangular grooves, a pressure plate (15) is threadedly connected to each of the two second threaded rods (13), the other sides of the two pressure plates (15) are slidably connected to the corresponding guide rod (14), and a third knob (16) is fixedly connected to one end of each of the two second threaded rods (13).

2. The hardness testing device for metal material detection according to claim 1, characterized in that: Both ends of the two rotating shafts (6) are provided with sliding grooves (17), and a sliding plate (18) is slidably connected in each of the sliding grooves (17).

3. The hardness testing device for metal material detection according to claim 2, characterized in that: Two fixing rods (19) are fixedly connected to the opposite sides of each of the two mutually matched fixing seats (5), and one end of each of the fixing rods (19) is rotatably connected to a rotating block (20).

4. The hardness testing device for metal material detection according to claim 3, characterized in that: Each sliding plate (18) is provided with a through opening that cooperates with a corresponding rotating block (20).

5. The hardness testing device for metal material detection according to claim 1, characterized in that: The two pressing plates (15) are both L-shaped, and a rubber layer is provided on one side of the two pressing plates (15).

6. The hardness testing device for metal material detection according to claim 1, characterized in that: The lower end of the machine body (1) is fixedly connected to a plurality of supporting legs, and the lower ends of the plurality of supporting legs are all fixedly connected to anti-slip pads.

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