A hardness measurement control structure

Abstract

The utility model relates to the technical field of hardness measuring device discloses a hardness measurement control structure, including L -shaped frame, the recess is established in the side of L -shaped frame, the top of L -shaped frame is fixedly connected with servo motor, the output shaft of servo motor is fixedly connected with screw rod, the outer surface screw thread of screw rod is sleeved with thread sleeve piece, through setting the synchronous descending horizontal plate driven by servo motor in hardness measuring mechanism, drive hardness measuring instrument and the collaborative work of matched plug -in block and gyro wheel, has realized the automatic cleaning of the surface of flake before testing contact with gyro wheel outer cover clean cloth, avoids dust impurity influence indentation formation, and simultaneously through the plug -in block structure of spring loading first sticks flake before testing, realizes stable clamping, prevents flake displacement in the measurement process, and utilizes the simultaneous test of pair hardness measuring instrument to same flake, improves the accuracy of hardness measurement through indentation contrast.

Description

Technical Field

[0001] This utility model relates to the technical field of hardness measuring devices, specifically a hardness measuring control structure. Background Technology

[0002] Hardness measurement refers to the process of quantitatively evaluating the ability of a material surface to resist indentation, scratching, cutting, or deformation by a foreign object under specified conditions using specific testing methods. Hardness is an important mechanical property indicator of a material, which usually reflects its wear resistance, compressive strength, and resistance to plastic deformation.

[0003] Existing hardness testing devices are easily affected by dust when measuring hardness. Once dust adheres to the surface of the testing device, it will cause errors in the test data. At the same time, for thin sheet-like workpieces, due to their light weight and weak rigidity, they are prone to positional shifts during the hardness test loading process, which will cause inconsistent indentation positions and also cause errors in the hardness test data. When errors occur, there is no comparative data, resulting in data entry errors.

[0004] Therefore, it is necessary to design a hardness measurement and control structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hardness measurement and control structure to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hardness measurement control structure, including an L-shaped frame, a groove on one side of the L-shaped frame, a servo motor fixedly connected to the top of the L-shaped frame, a screw fixedly connected to the output shaft of the servo motor, a threaded sleeve block threaded onto the outer surface of the screw, a horizontal plate fixedly connected to one side of the threaded sleeve block, two symmetrical hardness measuring instruments mounted on the top of the horizontal plate, and two symmetrical fixing blocks fixedly connected to the bottom of the horizontal plate, each fixing block having a slot at its bottom, multiple springs fixedly connected to the top of the inner cavity of the slot, a common insertion block fixedly connected to the bottom of the multiple springs, a rotating groove on one side of the fixing block, a rotating shaft rotatably connected inside the rotating groove, a rotating block fixedly sleeved on the outer surface of the rotating shaft, an insertion interface at the bottom of the rotating block, a roller rotatably connected inside the insertion interface, and a tension spring fixedly connected between the rotating block and the corresponding fixing block.

[0007] Preferably, there are two rotating grooves, and the two rotating grooves have an arc-shaped surface on one side of the bottom of the two rotating blocks.

[0008] Preferably, the two inserts are slidably inserted into the bottom of the two fixed blocks, and the outer surfaces of the two inserts are respectively in contact with the outer surfaces of the two slots.

[0009] Preferably, there are two insertion interfaces, each located below the bottom of one of the two hardness measuring instruments, and the bottom of each of the two hardness measuring instruments is slidably inserted into the two insertion interfaces.

[0010] Preferably, a partition is fixed to the top of the horizontal end of the L-shaped frame, and the two inserts are located on both sides of the horizontal plate, with equal distances between the two inserts and the sides of the horizontal plate.

[0011] Preferably, a cleaning cloth is fixedly fitted onto the outer surface of both rollers, and multiple anti-slip pads are fixedly fitted onto the bottom of both inserts, with the two cleaning cloths respectively located above one side of the multiple cleaning cloths on the two inserts.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention incorporates a synchronously descending horizontal plate driven by a servo motor in the hardness measuring mechanism. This plate coordinates the hardness measuring instrument, its associated inserts, and rollers to work together. Before testing, the rollers are covered with a cleaning cloth to automatically clean the surface of the sheet, preventing dust and impurities from affecting indentation formation. Simultaneously, a spring-loaded insert structure pre-fits the sheet before testing, ensuring stable clamping and preventing displacement during measurement. Furthermore, by using paired hardness measuring instruments to test identical sheets simultaneously, the accuracy of hardness measurement is improved through indentation comparison. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the insert block structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] In the diagram: 1. L-shaped frame; 2. Horizontal plate; 3. Hardness measuring instrument; 4. Servo motor; 5. Screw; 6. Threaded sleeve block; 7. Fixing block; 8. Insert block; 9. Rotating block; 10. Roller; 11. Cleaning cloth; 12. Partition; 13. Groove; 14. Rotating shaft; 15. Spring; 16. Slot; 17. Tension spring; 18. Anti-slip pad; 19. Insertion interface; 20. Rotating groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3 This utility model provides a hardness measurement control structure, including an L-shaped frame 1. A groove 13 is provided on one side of the L-shaped frame 1. A servo motor 4 is fixedly connected to the top of the L-shaped frame 1. A screw 5 is fixedly connected to the output shaft of the servo motor 4. A threaded sleeve block 6 is threaded onto the outer surface of the screw 5. A horizontal plate 2 is fixedly connected to one side of the threaded sleeve block 6. Two symmetrical hardness measuring instruments 3 are mounted on the top of the horizontal plate 2, and two symmetrical fixing blocks 7 are fixedly connected to the bottom of the horizontal plate 2. Each fixing block 7 has a slot 16 at its bottom. Multiple springs 15 are fixedly connected to the top of the inner cavity of the slot 16. A common insertion block 8 is fixedly connected to the bottom of the multiple springs 15. A rotating groove 20 is provided on one side of the fixing block 7. A rotating shaft 14 is rotatably connected inside the rotating groove 20. A rotating block 9 is fixedly sleeved on the outer surface of the rotating shaft 14. An insertion interface 19 is provided at the bottom of the rotating block 9. A roller 10 is rotatably connected inside the insertion interface 19. The rotating block 9 and the corresponding fixing block 7 are connected... A tension spring 17 is fixedly connected. During hardness testing, two identical thin plates to be tested are placed on the top of the L-shaped frame 1. At this time, the servo motor 4 is turned on, causing the horizontal plate 2 to drive the two hardness measuring instruments 3 to descend synchronously. During descent, the two insert blocks 8 descend synchronously. First, the two insert blocks 8 are used to fit against the two identical thin plates to be tested, thereby preventing the plates from shifting during testing. As the two fixed blocks 7 continue to descend, the two insert blocks 8 will elastically retract into the interior of the two fixed blocks 7. The hardened steel balls at the bottom of the two hardness measuring instruments 3 will gradually contact the two thin plates, thereby conducting hardness testing. Before the test contact, the two rollers 10 first contact the contact surface and roll on the contact surface of the two thin plates as the two fixed blocks 7 descend, thereby cleaning the outer surface of the two thin plates, thus preventing dust from affecting the indentation produced by the two hardened steel balls. The accuracy of hardness measurement is improved by comparing the indentations of the two hardened steel balls. The elasticity of the two tension springs 17 facilitates the elastic recovery of the two rotating blocks 9.

[0021] To facilitate limiting the recycling position of the two rotating blocks 9, there are two rotating grooves 20, and the two rotating grooves 20 have an arc-shaped surface on the bottom side of the two rotating blocks 9.

[0022] To improve the sliding stability of the two inserts 8, the two inserts 8 are slidably inserted into the bottom of the two fixed blocks 7, and the outer surfaces of the two inserts 8 are respectively in contact with the outer surfaces of the two slots 16.

[0023] To avoid the rotation of the two rotating blocks 9 affecting the contact between the hardened steel balls at the bottom of the two hardness measuring instruments 3 and the test sheet, there are two insertion interfaces 19. The two insertion interfaces 19 are located below the bottom of the two hardness measuring instruments 3, and the bottom of the two hardness measuring instruments 3 are slidably inserted into the two insertion interfaces 19.

[0024] To facilitate accurate division of the two test sheet placement areas and to ensure test accuracy, a partition plate 12 is fixedly connected to the top of the horizontal end of the L-shaped frame 1, and the two inserts 8 are located on both sides of the horizontal plate 2, with equal spacing between the two inserts 8 and the two sides of the horizontal plate 2.

[0025] To improve cleaning efficiency and stabilize the clamping of the sheet, cleaning cloths 11 are fixedly fitted onto the outer surfaces of both rollers 10, and multiple anti-slip pads 18 are fixedly fitted onto the bottom of both inserts 8. The two cleaning cloths 11 are respectively located above one side of the multiple cleaning cloths 11 on the two inserts 8.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A hardness measurement and control structure, comprising an L-shaped frame (1), characterized in that: A groove (13) is provided on one side of the L-shaped frame (1). A servo motor (4) is fixedly connected to the top of the L-shaped frame (1). A screw (5) is fixedly connected to the output shaft of the servo motor (4). A threaded sleeve block (6) is threaded onto the outer surface of the screw (5). A horizontal plate (2) is fixedly connected to one side of the threaded sleeve block (6). Two symmetrical hardness measuring instruments (3) are installed on the top of the horizontal plate (2). Two symmetrical fixing blocks (7) are fixedly connected to the bottom of the horizontal plate (2). A slot (16) is provided at the bottom of each of the two fixing blocks (7). Multiple springs (15) are fixed to the top of the inner cavity of 16), and a plug block (8) is fixed to the bottom of the multiple springs (15). A rotating groove (20) is provided on one side of the fixed block (7). A rotating shaft (14) is rotatably connected inside the rotating groove (20). A rotating block (9) is fixedly sleeved on the outer surface of the rotating shaft (14). A plug interface (19) is provided at the bottom end of the rotating block (9). A roller (10) is rotatably connected inside the plug interface (19). A tension spring (17) is fixed between the rotating block (9) and the corresponding fixed block (7).

2. The hardness measurement and control structure according to claim 1, characterized in that: The number of the rotating grooves (20) is two, and the two rotating grooves (20) have an arc-shaped surface on the bottom of one side of the two rotating blocks (9).

3. The hardness measurement and control structure according to claim 1, characterized in that: The two inserts (8) are slidably inserted into the bottom of the two fixed blocks (7), and the outer surfaces of the two inserts (8) are respectively attached to the outer surfaces of the two slots (16).

4. The hardness measurement and control structure according to claim 1, characterized in that: There are two insertion ports (19). The two insertion ports (19) are located below the bottom ends of the two hardness measuring instruments (3), and the bottom ends of the two hardness measuring instruments (3) are slidably inserted into the interior of the two insertion ports (19).

5. The hardness measurement and control structure according to claim 1, characterized in that: A partition plate (12) is fixed to the top of the horizontal end of the L-shaped frame (1), and the two inserts (8) are located on both sides of the horizontal plate (2), and the distance between the two inserts (8) and the two sides of the horizontal plate (2) is equal.

6. The hardness measurement and control structure according to claim 1, characterized in that: Cleaning cloths (11) are fixedly fitted on the outer surfaces of the two rollers (10), and multiple anti-slip pads (18) are fixedly fitted to the bottom of the two inserts (8). The two cleaning cloths (11) are respectively located above one side of the multiple cleaning cloths (11) on the two inserts (8).

Images