Hardness testing platform for metal fastener after heat treatment

Abstract

The utility model belongs to the technical field of hardness testing, and discloses a metal fastener post-heat-treatment hardness testing platform which comprises a workbench and a protection plate, one side of the workbench is fixedly connected with a fixing box, a motor is arranged on the inner wall of the fixing box, the output end of the motor is provided with a threaded rod through a coupler, and the threaded rod is connected with the protection plate. The outer wall of the threaded rod is sleeved with a moving plate in a threaded mode, the top of the moving plate is fixedly connected with a clamping plate, and a sliding groove is formed in one side of the clamping plate. According to the fastening piece clamping device, the motor, the threaded rod, the clamping plates, the clamping rods, the limiting plates and the first springs are arranged, the motor is started to drive the threaded rod to rotate, the two clamping plates can move in the opposite directions to clamp a fastening piece, and then the clamping rods are driven by the elastic force of the first springs to clamp the fastening piece; therefore, the fasteners with different shapes and sizes can be clamped, and the situation that the positions of the fasteners deviate when the hardness is tested is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of hardness testing, and more specifically, to a hardness testing platform for metal fasteners after heat treatment. Background Art

[0002] As the name suggests, the hardness testing platform is a device for testing the hardness of products. After heat treatment, the strength and hardness of metal fasteners will be improved. However, some fasteners may not be heat treated well, resulting in the hardness not meeting the market specification requirements. In this case, a hardness testing platform will be used to test the hardness of the fasteners, and they can be sold if they pass the test.

[0003] However, most of the existing hardness testing platforms for metal fasteners after heat treatment on the market cannot locate fasteners of different shapes and sizes, which makes it easy for the fasteners to shift in position when testing the hardness, thereby greatly reducing the accuracy of the test structure. Utility Model Content

[0004] In order to solve the above problems, the present application provides a hardness testing platform for metal fasteners after heat treatment.

[0005] The hardness testing platform for metal fasteners after heat treatment provided in this application adopts the following technical solution:

[0006] A hardness testing platform for metal fasteners after heat treatment comprises a workbench and a protective plate, one side of the workbench is fixedly connected to a fixed box, the inner wall of the fixed box is provided with a motor, the output end of the motor is provided with a threaded rod through a coupling, the outer wall of the threaded rod is threadedly sleeved with a movable plate, the top of the movable plate is fixedly connected to a clamping plate, and a slide groove is opened on one side of the clamping plate.

[0007] A clamping rod is slidably sleeved on the inner wall of the slide groove, one end of the clamping rod is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a first spring, the top of the workbench is fixedly connected to a frame, one side of the frame is provided with a hydraulic telescopic rod, the bottom of the hydraulic telescopic rod is provided with a test plate, and the bottom of the protective plate is provided with a test slot.

[0008] Furthermore, a channel is opened on the top of the workbench, and the movable plate is slidably sleeved with the channel.

[0009] Through the above technical solution, the movement of the movable plate can drive the clamping plate to move.

[0010] Furthermore, the first spring is slidably sleeved with the clamping rod, and one end of the first spring is fixedly connected to one side of the clamping plate.

[0011] Through the above technical solution, the elastic force of the first spring drives the clamping rod to clamp the fastener, thereby being able to clamp fasteners of different shapes and sizes.

[0012] Furthermore, the protection plate is slidably sleeved with the bottom of the hydraulic telescopic rod, and the outer wall of the test plate is slidably connected with the inner wall of the test slot.

[0013] Through the above technical solution, when the test plate squeezes the fastener, the protection plate covers the fastener.

[0014] Furthermore, a slideway is provided on the inner side wall of the test slot, a slider is fixedly connected to one side of the test plate, and an outer wall of the slider is slidably connected to an inner wall of the slideway.

[0015] Through the above technical solution, after the protection plate contacts the top of the workbench, the test plate can continue to move downward.

[0016] Furthermore, a second spring is fixedly connected to the inner bottom wall of the slideway, and the top of the second spring is fixedly connected to the bottom of the slide block.

[0017] Through the above technical solution, when the test plate moves upward to its original position, the protection plate can be reset by the elastic force of the second spring.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] (1) By setting a motor, a threaded rod, a clamping plate, a clamping rod, a limit plate and a first spring, the motor is started to drive the threaded rod to rotate, so that the two clamping plates move in relative directions to clamp the fastener, and then the clamping rod is driven by the elastic force of the first spring to clamp the fastener, so that fasteners of different shapes and sizes can be clamped, and the position displacement of the fastener will not occur during the hardness test, thereby greatly improving the accuracy of the test structure.

[0020] (2) By setting up the hydraulic telescopic rod, test plate, protection plate, test slot and second spring, when the test plate squeezes the fastener, the protection plate covers the fastener, so that when the fastener that does not meet the specifications cracks, the parts will not fly and hit the staff, thereby improving the safety of the device and further meeting the working requirements of the device, which is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a hardness testing platform for metal fasteners after heat treatment;

[0022] Figure 2 It is a front cross-sectional view of a hardness testing platform for metal fasteners after heat treatment;

[0023] Figure 3 is a front cross-sectional view of the clamping plate in this application;

[0024] Figure 4 for Figure 2 A magnified view of the structure in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Workbench; 2. Fixed box; 3. Motor; 4. Threaded rod; 5. Moving plate; 6. Clamping plate; 7. Channel; 8. Slide; 9. Clamping rod; 10. Limiting plate; 11. First spring; 12. Rack; 13. Hydraulic telescopic rod; 14. Test plate; 15. Slider; 16. Protection plate; 17. Test slot; 18. Second spring; 19. Slide. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application embodiment discloses a hardness test platform for metal fasteners after heat treatment. Figure 1-4, including a workbench 1 and a protection plate 16, a fixed box 2 is fixedly connected to one side of the workbench 1, a motor 3 is arranged on the inner wall of the fixed box 2, a threaded rod 4 is arranged at the output end of the motor 3 through a coupling, the threaded rod 4 takes the center line as the dividing line, the threads on both sides of the center line of the threaded rod 4 are different in positive and negative threads, a movable plate 5 is threadedly sleeved on the outer wall of the threaded rod 4, a clamping plate 6 is fixedly connected to the top of the movable plate 5, and a slide groove 8 is opened on one side of the clamping plate 6.

[0032] A clamping rod 9 is slidably sleeved on the inner wall of the slide groove 8, one end of the clamping rod 9 is fixedly connected to a limit plate 10, one side of the limit plate 10 is fixedly connected to a first spring 11, the top of the workbench 1 is fixedly connected to a frame 12, one side of the frame 12 is provided with a hydraulic telescopic rod 13, the hydraulic telescopic rod 13 is an existing device and will not be explained in detail here. A test plate 14 is provided at the bottom of the hydraulic telescopic rod 13, and a test slot 17 is provided at the bottom of the protective plate 16. The starting motor 3 drives the threaded rod 4 to rotate, so that the two clamping plates 6 will move in relative directions to clamp the fasteners, and then the elastic force of the first spring 11 drives the clamping rod 9 to clamp the fasteners, so that fasteners of different shapes and sizes can be clamped, and the position displacement of the fasteners will not occur when testing the hardness, thereby greatly improving the accuracy of the test structure.

[0033] In this embodiment, a channel 7 is opened on the top of the workbench 1, and the movable plate 5 is slidably connected to the channel 7, so that the movement of the movable plate 5 can drive the clamping plate 6 to move.

[0034] In this embodiment, the first spring 11 is slidably connected to the clamping rod 9, and one end of the first spring 11 is fixedly connected to one side of the clamping plate 6. The elastic force of the first spring 11 drives the clamping rod 9 to clamp the fastener, thereby clamping fasteners of different shapes and sizes.

[0035] In this embodiment, the protection plate 16 is slidably connected to the bottom of the hydraulic telescopic rod 13, and the outer wall of the test plate 14 is slidably connected to the inner wall of the test slot 17. When the test plate 14 squeezes the fastener, the protection plate 16 covers the fastener.

[0036] In this embodiment, a slideway 19 is provided on the inner wall of the test slot 17, a slider 15 is fixedly connected to one side of the test plate 14, the outer wall of the slider 15 is slidably connected to the inner wall of the slideway 19, and after the protection plate 16 contacts the top of the workbench 1, the test plate 14 can continue to move downward.

[0037] In this embodiment, the inner bottom wall of the slide 19 is fixedly connected with a second spring 18, and the top of the second spring 18 is fixedly connected to the bottom of the slider 15. When the test plate 14 moves upward to its original position, the protection plate 16 can be reset by the elastic force of the second spring 18.

[0038] The implementation principle of the post-heat-treatment hardness testing platform for metal fasteners in the embodiment of the present application is as follows: first, the fastener to be tested for hardness is placed on the workbench 1 and located between the two clamping plates 6, and then the motor 3 is started to drive the threaded rod 4 to rotate. Since the threads at both ends of the threaded rod 4 are opposite, and the two moving plates 5 are threadedly connected with the different threads of the threaded rod 4, the two clamping plates 6 will move in opposite directions to clamp the fastener;

[0039] Secondly, since there are a plurality of clamping rods 9, the clamping rods 9 in contact with the fasteners will move due to resistance, and the elastic force of the first spring 11 drives the clamping rods 9 to clamp the fasteners, so that fasteners of different shapes and sizes can be clamped;

[0040] Finally, the hydraulic telescopic rod 13 is connected to the external testing system and adjusted to the strength required for testing the hardness. The hydraulic telescopic rod 13 is started to drive the testing plate 14 and the protective plate 16 to move downward. When the testing plate 14 squeezes the fastener, the protective plate 16 covers the fastener to prevent parts from flying and hitting the staff when the fasteners that do not meet the specifications crack. Fasteners that are not cracked or deformed are considered to have qualified hardness.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A platform for testing the hardness of metal fasteners after heat treatment, comprising a workbench (1) and a protective plate (16), characterized in that: A fixed box (2) is fixedly connected to one side of the workbench (1), a motor (3) is provided on the inner wall of the fixed box (2), a threaded rod (4) is provided at the output end of the motor (3) via a coupling, a movable plate (5) is threadedly sleeved on the outer wall of the threaded rod (4), a clamping plate (6) is fixedly connected to the top of the movable plate (5), and a slide groove (8) is provided on one side of the clamping plate (6); The inner wall of the slide groove (8) is slidably sleeved with a clamping rod (9), one end of the clamping rod (9) is fixedly connected to a limit plate (10), one side of the limit plate (10) is fixedly connected to a first spring (11), the top of the workbench (1) is fixedly connected to a frame (12), one side of the frame (12) is provided with a hydraulic telescopic rod (13), the bottom of the hydraulic telescopic rod (13) is provided with a test plate (14), and the bottom of the protection plate (16) is provided with a test slot (17).

2. A metal fastener hardness testing platform after heat treatment according to claim 1, characterized in that: A channel (7) is provided on the top of the workbench (1), and the movable plate (5) is slidably sleeved with the channel (7).

3. A metal fastener hardness testing platform after heat treatment according to claim 1, characterized in that: The first spring (11) is slidably sleeved with the clamping rod (9), and one end of the first spring (11) is fixedly connected to one side of the clamping plate (6).

4. A metal fastener hardness testing platform after heat treatment according to claim 1, characterized in that: The protection plate (16) is slidably sleeved with the bottom of the hydraulic telescopic rod (13), and the outer wall of the test plate (14) is slidably connected with the inner wall of the test slot (17).

5. The hardness testing platform for metal fasteners after heat treatment according to claim 1, characterized in that: The inner wall of the test slot (17) is provided with a slideway (19), one side of the test plate (14) is fixedly connected with a slider (15), and the outer wall of the slider (15) is slidably connected to the inner wall of the slideway (19).

6. A metal fastener hardness testing platform after heat treatment according to claim 5, characterized in that: The inner bottom wall of the slideway (19) is fixedly connected with a second spring (18), and the top of the second spring (18) is fixedly connected to the bottom of the slide block (15).

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