Anti-extrusion durometer

Abstract

The utility model relates to the technical field of material detection, and discloses an anti-extrusion durometer which comprises a base, a durometer body is installed on the base, a pressing head is arranged in the durometer body, a lead screw is installed in the base, a hand wheel is arranged outside the lead screw, a workbench is installed at the top of the lead screw, and a set of abutting plates are arranged on the workbench. A movable abutting plate is installed on one side of the top of the workbench, and anti-skid silica gel blocks are fixedly arranged on the inner walls of the ends, close to each other, of the abutting plate and the movable abutting plate. The abutting plate and the movable abutting plate are arranged on the workbench and are distributed in a triangular shape, the abutting plate is fixed and can support the outer wall of a material, the movable abutting plate is driven by the air cylinder, the fixing space can be flexibly adjusted according to the size of the material, the friction force in contact with the material can be enhanced through the arrangement of the anti-skid silica gel block, and therefore the material can be conveniently fixed. Therefore, the material can be prevented from position deviation or extrusion during hardness detection, the hardness detection device can adapt to to-be-detected materials with different sizes and shapes, and the application range of the hardness detection device is expanded.

Description

Technical Field

[0001] The present application relates to the technical field of material testing, and in particular to an anti-extrusion hardness tester. Background Art

[0002] In the field of materials science, hardness testing is one of the important means to evaluate material properties. In the test process of existing hardness testers, it is usually necessary to place the material to be tested on the test bench and apply a certain pressure through the indenter to measure the hardness of the material. However, in actual applications, we have noticed that due to the impact and vibration during the test, the material to be tested is prone to position displacement or extrusion, resulting in inaccurate test results. At present, the positioning of the test material is usually achieved by fixture fixation or magnetic adsorption. However, these existing technical solutions have obvious disadvantages. The installation of the fixture is cumbersome, and due to the different sizes of the materials, the fixture needs to be adjusted continuously, which may cause scratches or damage to the surface of the test material, affecting the accuracy of the test; and the magnetic adsorption method is limited by the magnetism of the material, and non-magnetic materials cannot be effectively fixed, resulting in low detection efficiency.

[0003] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0004] In order to solve the problem of positioning the test material, a clamp or magnetic adsorption method is usually used. However, these prior art solutions have obvious disadvantages. The installation of the clamp is cumbersome, and due to the different sizes of materials, the clamp needs to be constantly adjusted, which may cause scratches or damage to the surface of the test material, affecting the accuracy of the test; and the magnetic adsorption method is limited by the magnetism of the material, and non-magnetic materials cannot be effectively fixed, resulting in low detection efficiency. The present application provides an anti-extrusion hardness tester.

[0005] The anti-extrusion hardness tester provided in this application adopts the following technical solution:

[0006] An anti-extrusion hardness tester comprises a base, a hardness tester is installed on the base, a pressure head is arranged inside the hardness tester, a screw is installed inside the base, a hand wheel is arranged outside the screw, a workbench is installed on the top of the screw, a group of abutment plates are arranged on the workbench, a movable abutment plate is installed on one side of the top of the workbench, and anti-slip silicone blocks are fixed on the inner walls of the ends of the abutment plate and the movable abutment plate that are close to each other.

[0007] Preferably, an operation screen is fixedly mounted on the outer wall of the front end of the base, and an objective lens is fixedly mounted on the outer surface of the hardness tester.

[0008] Preferably, a fixing frame is connected to the middle part of one side of the workbench by screws, and a cylinder is fixedly mounted on the outer wall of the fixing frame.

[0009] Preferably, the output end of the cylinder passes through the inner wall of the fixed frame and is fixed with a movable frame, and a positioning block is fixed on one side of the top of the workbench close to the fixed frame.

[0010] Preferably, pull rods are symmetrically fixed to the inner wall of the movable frame, and one end of the two pull rods away from the movable frame extends outside the positioning block and is connected to the back wall of the movable abutment plate.

[0011] Preferably, a spring is sleeved on the outer wall of the pull rod, and the spring is located between the positioning block and the movable abutment plate. A support frame is installed on the outer wall of the abutment plate, and the support frame is fixed to the surface of the workbench.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The present application provides a support plate and a movable support plate on the workbench, which are distributed in a triangular shape. The support plate is fixed and can support the outer wall of the material, while the movable support plate is driven by a cylinder and can flexibly adjust the fixing space according to the size of the material. The provision of an anti-slip silicone block can enhance the friction force in contact with the material, thereby playing a stabilizing and anti-slip role, thereby preventing the material from being displaced or extruded during hardness testing. It can adapt to materials to be tested of different sizes and shapes, thereby expanding its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of an anti-extrusion hardness tester according to an embodiment of the application.

[0015] Figure 2 It is a structural schematic diagram of an anti-extrusion hardness tester according to an embodiment of the application.

[0016] Figure 3 It is a schematic diagram of the structure of a workbench according to an embodiment of the application.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. hardness tester; 3. indenter; 4. workbench; 5. operating screen; 6. objective lens; 7. hand wheel; 8. screw rod; 9. fixed frame; 10. supporting frame; 11. abutment plate; 12. non-slip silicone block; 13. cylinder; 14. movable frame; 15. pull rod; 16. spring; 17. movable abutment plate; 18. positioning block. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The present application embodiment discloses an anti-extrusion hardness tester. Figure 1, including a base 1, an operation screen 5 is fixedly installed on the outer wall of the front end of the base 1, a hardness tester 2 is installed on the base 1, and the base 1, as the foundation of the entire detection mechanism, has sufficient stability and load-bearing capacity. An objective lens 6 is fixedly installed on the outer surface of the hardness tester 2, a pressure head 3 is arranged inside the hardness tester 2, a screw rod 8 is installed inside the base 1, a hand wheel 7 is arranged outside the screw rod 8, a workbench 4 is installed on the top of the screw rod 8, and the pressure head 3 and the workbench 4 are located at the same verticality, which is convenient for positioning and detecting materials.

[0020] like Figure 2-Figure 3 As shown, a group of abutment plates 11 are provided on the workbench 4, and a movable abutment plate 17 is installed on one side of the top of the workbench 4. The two abutment plates 11 and the movable abutment plate 17 are distributed in a triangle, and the inner walls of the ends of the abutment plates 11 and the movable abutment plates 17 that are close to each other are fixed with anti-slip silicone blocks 12. The anti-slip silicone blocks 12 are made of flexible material, which can enhance the anti-slip resistance and avoid pinching damage to the surface of the material. A fixing frame 9 is connected to the middle part of one side of the workbench 4 by screws, and a cylinder 13 is fixedly installed on the outer wall of the fixing frame 9, and one side of the movable abutment plate 17 is supported by the fixing frame 9.

[0021] In this embodiment, the output end of the cylinder 13 passes through the inner wall of the fixed frame 9 and is fixed with a movable frame 14. A positioning block 18 is fixed to the side of the top of the workbench 4 close to the fixed frame 9. Pull rods 15 are symmetrically fixed to the inner wall of the movable frame 14. The two pull rods 15 extend from one end of the movable frame 14 to the outside of the positioning block 18 and are connected to the back wall of the movable support plate 17. A through hole is provided in the positioning block 18 for the pull rod 15 to move, thereby facilitating pushing and pulling the movable support plate 17 to adjust the clamping distance.

[0022] Furthermore, a spring 16 is sleeved on the outer wall of the pull rod 15, and the spring 16 is located between the positioning block 18 and the movable support plate 17, which plays a good buffering role. A support frame 10 is installed on the outer wall of the support plate 11, and the support frame 10 is fixed to the surface of the workbench 4, further improving the strength of the overall structure.

[0023] The implementation principle of an anti-extrusion hardness tester in an embodiment of the present application is as follows: when in use, the material to be tested is placed in the middle of the workbench 4, and then the cylinder 13 on the outer wall of the fixed frame 9 is started. The cylinder 13 works to push the movable frame 14 to move to one side, and then the pull rod 15 can be pushed to move in the positioning block 18, thereby pushing the movable abutment plate 17 to approach one side of the material, and driving the material to continue moving until it is close to the abutment plate 11 on the other side for limiting. It can adapt to materials to be tested of different sizes and shapes, and expand its application range. The anti-slip silicone block 12 is made of flexible material, which can enhance the anti-slip resistance and avoid pinching damage to the surface of the material. Then, the lifting and lowering of the screw rod 8 is adjusted to drive the workbench 4 close to the pressure head 3, and the hardness tester 2 can be started to test the hardness of the material through the pressure head 3.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0025] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0027] 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. An anti-extrusion hardness tester, comprising a base (1), characterized in that: A hardness tester (2) is mounted on the base (1), a pressure head (3) is arranged inside the hardness tester (2), a screw rod (8) is mounted inside the base (1), a hand wheel (7) is arranged outside the screw rod (8), a workbench (4) is mounted on the top of the screw rod (8), a group of abutment plates (11) are arranged on the workbench (4), a movable abutment plate (17) is mounted on one side of the top of the workbench (4), and an anti-slip silicone block (12) is fixedly arranged on the inner wall of the end where the abutment plate (11) and the movable abutment plate (17) are close to each other.

2. The anti-extrusion hardness tester according to claim 1, characterized in that: An operation screen (5) is fixedly mounted on the outer wall of the front end of the base (1), and an objective lens (6) is fixedly mounted on the outer surface of the hardness tester (2).

3. The anti-extrusion hardness tester according to claim 1, characterized in that: A fixing frame (9) is connected to the middle of one side of the workbench (4) via screws, and a cylinder (13) is fixedly mounted on the outer wall of the fixing frame (9).

4. The anti-extrusion hardness tester according to claim 3, characterized in that: The output end of the cylinder (13) passes through the inner wall of the fixed frame (9) and is fixed with a movable frame (14); a positioning block (18) is fixed on one side of the top of the workbench (4) close to the fixed frame (9).

5. The anti-extrusion hardness tester according to claim 4, characterized in that: The inner wall of the movable frame (14) is symmetrically fixed with pull rods (15), and one end of the two pull rods (15) away from the movable frame (14) extends outside the positioning block (18) and is connected to the back wall of the movable abutment plate (17).

6. The anti-extrusion hardness tester according to claim 5, characterized in that: The outer wall of the pull rod (15) is sleeved with a spring (16), and the spring (16) is located between the positioning block (18) and the movable abutment plate (17). The outer wall of the abutment plate (11) is installed with a support frame (10), and the support frame (10) is fixed to the surface of the workbench (4).

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