A metal material surface hardness detection device

Abstract

The utility model discloses a metal material surface hardness detection device, including anvil, top, support part, clamp and pressure head subassembly, and support part both ends are connected anvil, top respectively, and anvil, top all are cylindrical shape, and clamp is connected in the middle part of anvil, and pressure head subassembly sets up in the middle part of top, the circumference of top is connected with slide rail, and a plurality of pulleys are slidably arranged in the slide rail, and the pivot of pulley is connected with bone lever, a plurality of bone lever are mutually spaced, and the adjacent bone lever is connected with the screen net, and bone lever and screen net are shielded in the side of pressure head subassembly after unfolding on the slide rail. Through the bone lever of dialing, pulley slides in the slide rail, and the screen net is unfolded in the side of pressure head subassembly. The screen net forms the closed ring barrier with support part, and prevents the outside article or user's body from colliding pressure head subassembly. Protects pressure head subassembly, and maintains the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to a device for testing the surface hardness of metal materials, and belongs to the field of devices for testing the surface hardness of metal materials. Background Technology

[0002] To determine whether the surface hardness of metallic materials is up to standard, a Vickers hardness tester is commonly used. This tester includes an anvil, clamp, support, top, indenter, spring, sleeve, and dial indicator. The support connects to the anvil and top at both ends. During operation, the indenter assembly moves as a whole towards the anvil. The tip of the indenter contacts the workpiece, creating an indentation on its surface. The hardness value is calculated by measuring the size of the indentation. However, existing Vickers hardness testers have shortcomings. Their support is a semi-circular thin plate located on the back side of the indenter, leaving the entire indenter unobstructed. This makes it susceptible to injury from external objects or the user's body, potentially reducing the accuracy of the test results. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a device for testing the surface hardness of metal materials. This device is designed to shield the side of the indenter assembly, preventing damage to the indenter assembly.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a metal material surface hardness testing device, comprising an anvil, a top, a support, a clamp, and an indenter assembly. The two ends of the support are respectively connected to the anvil and the top. Both the anvil and the top are cylindrical in shape. The clamp is connected to the middle of the anvil, and the indenter assembly is located in the middle of the top. A slide rail is connected to the circumferential surface of the top, and several pulleys are slidably arranged in the slide rail. A bone rod is connected to the rotating shaft of the pulley. Several bone rods are spaced apart from each other, and a shielding net is connected between adjacent bone rods. After the bone rods and the shielding net are unfolded on the slide rail, they shield the side of the indenter assembly.

[0005] The present invention is further configured such that a slide rail is also connected to the circumferential surface of the anvil, and pulleys are connected to both ends of the bone rod.

[0006] The present invention is further configured such that magnets are provided at both ends of the slide rail, and the pulley is made of iron material, and the magnets attract the pulley.

[0007] The present invention is further configured such that: a rotating seat is provided at the center of the upper surface of the top, and a swing rod is rotatably connected in the rotating seat. The swing rod is bent and a collar is connected to its end. The collar is sleeved on the bone rod.

[0008] The present invention is further configured such that: the rotating seat includes a sheath tube, a connecting plate, a second bolt and a pair of bearings, the second bolt passes through the edge of the connecting plate and connects to the top, the sheath tube is fixedly connected to the center of the connecting plate, and the end of the swing rod is inserted into the sheath tube and rotatably connected by a pair of bearings.

[0009] A further feature of this invention is that the shielding net is made of soft nylon thread.

[0010] The present invention is further configured such that the slide rail is connected to the anvil or top by a first bolt.

[0011] Compared with existing technologies, the advantages of this invention are as follows: A slide rail is connected to the top circumferential surface, and several pulleys are slidably arranged within the slide rail. Rib rods are connected to the axles of the pulleys; these rib rods are spaced apart, and a shielding net is connected between adjacent rib rods. By moving the rib rods, the pulleys slide within the slide rail, unfolding the shielding net on the side of the pressure head assembly. The shielding net, together with the support, forms a closed annular barrier, preventing external objects or user limbs from colliding with the pressure head assembly. This protects the pressure head assembly and maintains the accuracy of the detection results. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a metal material surface hardness testing device according to a preferred embodiment of the present invention;

[0013] Figure 2 A schematic diagram of the top, rocker arm, and slide rail;

[0014] Figure 3 This is a schematic diagram of the rotating seat.

[0015] Figure 4 A schematic diagram of the skeleton and the shielding net;

[0016] Figure 5 This is a schematic diagram of the slide rail and pulley.

[0017] In the diagram: 1. Anvil; 2. Top; 3. Support; 4. Rotating seat; 5. Swing rod; 6. Slide rail; 7. Rib; 8. Shielding net; 9. Clamp; 10. First bolt; 11. Pulley; 12. Indenter assembly; 13. Collar; 14. Magnet; 41. Sheath; 42. Connecting plate; 43. Second bolt; 44. Bearing. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] See appendix Figure 1-5 As shown, a surface hardness testing device for metal materials in this embodiment includes an anvil 1, a top 2, a support 3, a clamp 9, and an indenter assembly 12. The two ends of the support 3 are respectively connected to the anvil 1 and the top 2. Both the anvil 1 and the top 2 are cylindrical. The clamp 9 is connected to the middle of the anvil 1, and the indenter assembly 12 is located in the middle of the top 2. A slide rail 6 is connected to the circumferential surface of the top 2. Several pulleys 11 are slidably arranged in the slide rail 6. A bone rod 7 is connected to the rotating shaft of the pulley 11. Several bone rods 7 are spaced apart from each other, and a shielding net 8 is connected between adjacent bone rods 7. After the bone rods 7 and the shielding net 8 are unfolded on the slide rail 6, they shield the side of the indenter assembly 12.

[0020] A slide rail 6 is connected to the circumferential surface of the top 2. Several pulleys 11 are slidably arranged in the slide rail 6, and a baffle 7 is connected to the axle of each pulley 11. The baffles 7 are spaced apart, and a shielding net 8 is connected between adjacent baffles 7. By moving the baffles 7, the pulleys 11 slide in the slide rail 6, and the shielding net 8 unfolds on the side of the pressure head assembly 12. The shielding net 8, together with the support part 3, forms a closed annular barrier, preventing external objects or user limbs from colliding with the pressure head assembly 12. This protects the pressure head assembly 12 and maintains the accuracy of the detection results. Preferably, the support part 3 and the shielding net 8 are complementary arc shapes, hugging each other to form a cylindrical shape, surrounding the side of the pressure head assembly 12.

[0021] To prevent the lower ends of the bone rod 7 and the shielding net 8 from swaying, this utility model is further configured such that a slide rail 6 is also connected to the circumferential surface of the anvil 1, and pulleys 11 are connected to both ends of the bone rod 7. Both ends of the bone rod 7 slide in a pair of slide rails 6 via a pulley 11, limiting the position of the two ends of the bone rod 7 and keeping the bone rod 7 in a vertical state at all times.

[0022] To initially secure the unfolded bone rod 7 and shielding net 8, this invention further includes: magnets 14 at both ends of the slide rail 6, and pulleys 11 made of iron. The pulleys 11 at both ends of the slide rail 6 are attracted by the magnets 14, unfolding the bone rod 7 and shielding net 8 onto the slide rail 6.

[0023] To facilitate the movement of the bone rod 7, this invention is further configured such that: a rotating seat 4 is provided at the center of the upper surface of the top 2, and a swing rod 5 is rotatably connected to the rotating seat 4. The swing rod 5 is bent and has a collar 13 connected to its end, which is sleeved on the bone rod 7. Preferably, the collar 13 is sleeved on the first bone rod 7 on the left. By rotating the swing rod 5, the bone rod 7 and the shielding net 8 are driven to unfold on the slide rail 6.

[0024] The present invention is further configured such that: the rotating seat 4 includes a sheath tube 41, a connecting plate 42, a second bolt 43, and a pair of bearings 44; the second bolt 43 passes through the edge of the connecting plate 42 and connects to the top 2; the sheath tube 41 is fixedly connected to the center of the connecting plate 42; the end of the swing rod 5 is inserted into the sheath tube 41 and rotatably connected by a pair of bearings 44. The shielding net 8 is made of soft nylon thread. The slide rail 6 is connected to the anvil 1 or the top 2 by a first bolt 10.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A surface hardness testing device for metal materials, comprising an anvil (1), a top (2), a support (3), a clamp (9), and a pressure head assembly (12), wherein the two ends of the support (3) are respectively connected to the anvil (1) and the top (2), both the anvil (1) and the top (2) are cylindrical, the clamp (9) is connected to the middle of the anvil (1), and the pressure head assembly (12) is located in the middle of the top (2); Its features are, A slide rail (6) is connected to the circumferential surface of the top (2). Several pulleys (11) are slidably arranged in the slide rail (6). A bone rod (7) is connected to the shaft of the pulley (11). Several bone rods (7) are spaced apart from each other. A shielding net (8) is connected between adjacent bone rods (7). After the bone rods (7) and the shielding net (8) are unfolded on the slide rail (6), they shield the side of the pressure head assembly (12).

2. The metal material surface hardness testing device according to claim 1, characterized in that, The anvil (1) is also connected to a slide rail (6), and both ends of the bone rod (7) are connected to pulleys (11).

3. The metal material surface hardness testing device according to claim 1, characterized in that, Magnets (14) are provided at both ends of the slide rail (6), and the pulley (11) is made of iron material. The magnets (14) attract the pulley (11).

4. The metal material surface hardness testing device according to claim 1, characterized in that, A rotating seat (4) is provided at the center of the upper surface of the top (2). A swing rod (5) is rotatably connected in the rotating seat (4). The swing rod (5) is bent and has a collar (13) connected to its end. The collar (13) is sleeved on the bone rod (7).

5. The metal material surface hardness testing device according to claim 4, characterized in that, The rotating seat (4) includes a sheath tube (41), a connecting plate (42), a second bolt (43) and a pair of bearings (44). The second bolt (43) passes through the edge of the connecting plate (42) and is connected to the top (2). The sheath tube (41) is fixedly connected to the center of the connecting plate (42). The end of the swing rod (5) is inserted into the sheath tube (41) and is rotatably connected by a pair of bearings (44).

6. The metal material surface hardness testing device according to claim 1, characterized in that, The shielding net (8) is made of soft nylon thread.

7. The metal material surface hardness testing device according to claim 2, characterized in that, The slide rail (6) is connected to the anvil (1) or top (2) by a first bolt (10).

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