Stable hardness tester

Abstract

The utility model relates to the technical field of hardness instruments, in particular to a stable hardness instrument which comprises a hardness instrument main body, an electric telescopic rod for providing power is fixed on the inner side of the hardness instrument main body through a screw, and a test rod for testing an object is fixed at the power output end of the electric telescopic rod through a screw. A display screen for displaying test results is fixed outside the hardness tester main body through screws, an air cylinder for providing power is connected to the interior of the hardness tester main body through bolts, a transmission frame is fixed to the power output end of the air cylinder through screws, and a servo motor B for providing power is connected to the interior of the transmission frame through bolts; the power output end of the servo motor B is in key connection with a threaded rod, and the outer portion of the threaded rod is in threaded connection with a transmission block. Through the arrangement of the positioning assembly, the placing frame, the air cylinder, the servo motor B, the threaded rod, the transmission frame, the driving plate and the transmission block, the problem that when an existing stable hardness tester is used, the object testing efficiency is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of hardness tester technology, specifically to a stable hardness tester. Background Technology

[0002] A hardness tester is a specialized instrument used to measure the surface hardness of materials. Hardness is a mechanical property that measures the degree of softness or hardness of a material. It represents the material's ability to resist localized deformation, especially plastic deformation, indentation, or scratches. The working principle of a hardness tester is to apply a certain force to the surface of the material and then measure the size or shape of the indentation to calculate the hardness value.

[0003] Patent No. 201821918919.9 discloses a stable hardness tester. The device uses a base, locking groove, locking plate and limiting component to prevent the product from sliding during the test.

[0004] However, existing stable hardness testers use a base, locking groove, locking plate, and limiting components to fix the object to be tested. However, when fixing the object to be tested, the operator needs to manually move the limiting components, which is cumbersome and inefficient. In addition, the shape of the object to be tested varies, and the position of the test rod is fixed. The operator needs to manually adjust the position of the object to be tested to align it with the test rod, which is also cumbersome and affects the testing efficiency. Therefore, a stable hardness tester is designed. Utility Model Content

[0005] The main objective of this invention is to provide a stable hardness tester. This invention solves the problem of low testing efficiency of existing stable hardness testers by setting up positioning components, a placement frame, a cylinder, a servo motor B, a threaded rod, a transmission frame, a drive plate, and a transmission block.

[0006] The technical solution adopted by this utility model to solve its technical problem is a stable hardness tester, including a hardness tester body. An electric telescopic rod that provides power is fixed to the inner side of the hardness tester body by screws, and a test rod for testing objects is fixed to the power output end of the electric telescopic rod by screws. A display screen that displays the test results is fixed to the outer side of the hardness tester body by screws. A cylinder that provides power is bolted to the inner side of the hardness tester body, and a transmission frame is fixed to the power output end of the cylinder by screws. A servo motor B that provides power is bolted to the inner side of the transmission frame, and a threaded rod is keyed to the power output end of the servo motor B. A transmission block is threaded to the outer side of the threaded rod, and a drive plate is welded to the top of the transmission block. A placement frame for placing the object to be tested is fixed to the inner side of the drive plate by screws, and a positioning component for fixing the object to be tested is provided inside the placement frame.

[0007] By adopting the above technical solution, after the object to be tested is fixed in the placement frame, the cylinder in the hardness tester body is driven by the external controller to move the transmission frame. Then, the servo motor B in the transmission frame is driven by the external controller to rotate the threaded rod. Then, the transmission block outside the threaded rod is limited by the bottom structure to move laterally. Then, the transmission block drives the drive plate to move. Then, the drive plate drives the object to be tested in the placement frame to move, which makes it easier to adjust the position of the object to be tested and improves the testing efficiency of the object.

[0008] After the position of the object to be tested is adjusted, the electric telescopic rod inside the hardness tester is driven by the external controller to move the test rod, so that the test rod comes into contact with the object to be tested, and then the test result is displayed on the display screen outside the hardness tester.

[0009] Specifically, the positioning component includes a servo motor A, a bidirectional lead screw, a drive block A, a drive block B, a connecting plate A, a connecting plate B, a limiting block, a limiting groove, a connecting rod, gear A, and gear B. The servo motor A, which provides power, is bolted inside the placement frame, and the power output end of the servo motor A is keyed to the connecting rod. The connecting rod is sleeved with a transmission gear A, and gear B is meshed with the gear A. The bidirectional lead screw is snapped into the inside of gear B, and drive block A and drive block B are threadedly connected to the outside of the bidirectional lead screw. Drive block A is located to the right of drive block B. A connecting plate A, which contacts the object to be tested, is welded to the outside of drive block A, and a connecting plate B, which contacts the object to be tested, is welded to the outside of drive block B.

[0010] By adopting the above technical solution, when the object to be tested is placed in the placement rack, the servo motor A in the placement rack is converted into mechanical energy by the external controller. The servo motor A drives the bidirectional lead screw to rotate. The drive block A and drive block B outside the bidirectional lead screw are both limited by the bottom structure to move laterally outside the bidirectional lead screw. Drive block A drives the connecting plate A to move, and drive block B drives the connecting plate B to move, so that the connecting plate A and connecting plate B respectively contact the object to be tested, thereby facilitating the fixation of the object to be tested and preventing the object to be tested from shifting.

[0011] Bearings are installed at both ends of the double-acting lead screw, one end of the threaded rod, and one end of the connecting rod.

[0012] Specifically, both connecting plate A and connecting plate B are symmetrically welded with limiting blocks on their exteriors, and the inner side of the placement frame is symmetrically provided with limiting grooves that allow the limiting blocks to slide.

[0013] By adopting the above technical solution, when connecting plate A and connecting plate B move, the limiting blocks symmetrically welded to the outside of connecting plate A and connecting plate B slide in the limiting grooves symmetrically opened in the placement frame, thereby improving the stability of the movement of connecting plate A and connecting plate B.

[0014] Specifically, a fixing sleeve is snapped into the inner side of the drive plate, and a fixing rod is slidably connected to the inner side of the fixing sleeve. Ball bearings that stabilize the movement of the drive plate are symmetrically embedded in the inner side of the transmission frame.

[0015] By adopting the above technical solution, when the drive plate moves inside the transmission frame, the fixed sleeve on the drive plate slides outside the fixed rod welded inside the transmission frame, and at the same time the drive plate contacts the ball bearings inside the transmission frame, and the ball bearings begin to roll, thereby improving the stability of the drive plate movement.

[0016] Specifically, the bottom of the transmission frame is symmetrically welded with sliding sleeves, and a sliding rod is slidably connected to the inner side of the sliding sleeve.

[0017] By adopting the above technical solution, when the transmission frame moves, the symmetrical sliding sleeves at the bottom of the transmission frame slide outside the sliding rods symmetrically welded inside the hardness tester body, thereby improving the stability of the transmission frame's lateral movement.

[0018] Specifically, the input ends of the servo motor A, servo motor B, cylinder, and electric telescopic rod are all electrically connected to the power supply end of an external power source.

[0019] By adopting the above technical solution and connecting to an external power source, the electrical equipment can operate normally.

[0020] The beneficial effects of this utility model are:

[0021] (1) The stable hardness tester of this utility model, when the object to be tested is fixed in the placement frame, the cylinder in the main body of the hardness tester is driven by the external controller to move the transmission frame. Then the servo motor B in the transmission frame is driven by the external controller to rotate the threaded rod. Then the transmission block outside the threaded rod is limited by the bottom structure to move laterally. Then the transmission block drives the drive plate to move. Then the drive plate drives the object to be tested in the placement frame to move, thereby facilitating the adjustment of the position of the object to be tested and improving the testing efficiency of the object.

[0022] (2) In the stable hardness tester described in this utility model, when the object to be tested is placed in the placement rack, the servo motor A in the placement rack is converted into mechanical energy by the external controller. The servo motor A drives the bidirectional lead screw to rotate. The drive block A and drive block B outside the bidirectional lead screw are both limited by the bottom structure to move laterally outside the bidirectional lead screw. Drive block A drives the connecting plate A to move, and drive block B drives the connecting plate B to move, so that the connecting plate A and connecting plate B respectively contact the object to be tested, thereby facilitating the fixation of the object to be tested and preventing the object to be tested from shifting. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1This is a schematic diagram of the overall structure of a stable hardness tester according to the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the mounting frame for a stable hardness tester according to this utility model;

[0026] Figure 3 This is a partial top view of the internal structure of a stable hardness tester according to the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the transmission frame of a stable hardness tester according to the present invention;

[0028] In the diagram: 1. Hardness tester body; 2. Display screen; 3. Electric telescopic rod; 4. Placement frame; 5. Test rod; 6. Drive plate; 7. Positioning assembly; 8. Connecting plate A; 9. Drive block A; 10. Connecting rod; 11. Connecting plate B; 12. Gear B; 13. Two-way lead screw; 14. Drive block B; 15. Servo motor A; 16. Gear A; 17. Limiting groove; 18. Limiting block; 19. Ball bearing; 20. Sliding sleeve; 21. Sliding rod; 22. Cylinder; 23. Transmission frame; 24. Fixed rod; 25. Servo motor B; 26. Transmission block; 27. Fixed sleeve; 28. Threaded rod. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To improve the testing efficiency of objects, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses a stable hardness tester, comprising a hardness tester body 1. An electric telescopic rod 3, providing power, is screwed onto the inner side of the hardness tester body 1, and a test rod 5 for testing an object is screwed onto the power output end of the electric telescopic rod 3. A display screen 2 for displaying test results is screwed onto the outer side of the hardness tester body 1. A cylinder 22, providing power, is bolted onto the inner side of the hardness tester body 1, and a transmission frame 23 is screwed onto the power output end of the cylinder 22. A servo motor B25, providing power, is bolted onto the inner side of the transmission frame 23, and a threaded rod 28 is keyed onto the power output end of the servo motor B25. A transmission block 26 is threaded onto the outer side of the threaded rod 28, and a drive plate 6 is welded to the top of the transmission block 26. A placement frame 4 for placing the object to be tested is screwed onto the inner side of the drive plate 6, and a positioning component 7 for fixing the object to be tested is provided inside the placement frame 4.

[0031] When in use, after the object to be tested is fixed in the placement frame 4, the cylinder 22 in the hardness tester body 1 is driven by the external controller to move the transmission frame 23. Then, the servo motor B25 in the transmission frame 23 is driven by the external controller to rotate the threaded rod 28. Then, the transmission block 26 outside the threaded rod 28 is limited by the bottom structure to move laterally. Then, the transmission block 26 drives the drive plate 6 to move. Then, the drive plate 6 drives the object to be tested in the placement frame 4 to move, which makes it easier to adjust the position of the object to be tested and improves the testing efficiency of the object.

[0032] After the position of the object to be tested is adjusted, the electric telescopic rod 3 inside the hardness tester body 1 is driven by the external controller to move the test rod 5, so that the test rod 5 comes into contact with the object to be tested, and then the test result is displayed on the display screen 2 outside the hardness tester body 1.

[0033] To avoid the object under test shifting, for example, such as Figure 2 As shown, this utility model also includes the positioning component 7, which includes a servo motor A15, a bidirectional lead screw 13, a drive block A9, a drive block B14, a connecting plate A8, a connecting plate B11, a limiting block 18, a limiting groove 17, a connecting rod 10, a gear A16, and a gear B12. The placement frame 4 is internally bolted to the servo motor A15, which provides power. The power output end of the servo motor A15 is keyed to the connecting rod 10. The connecting rod 10 is externally sleeved with the transmission gear A16, and the gear A16 is externally meshed with the gear B12. The bidirectional lead screw 13 is internally engaged with the gear B12, and the bidirectional lead screw 13 is externally threaded to the drive block A9 and the drive block B14. The drive block A9 is located to the right of the drive block B14. The drive block A9 is externally welded with the connecting plate A8, which contacts the object to be tested. The drive block B14 is externally welded with the connecting plate B11, which contacts the object to be tested.

[0034] In use, when the object to be tested is placed in the placement rack 4, the servo motor A15 inside the placement rack 4 converts the received electrical energy into mechanical energy under the action of the external controller. The servo motor A15 drives the bidirectional lead screw 13 to rotate. The drive block A9 and drive block B14 outside the bidirectional lead screw 13 are both limited by the bottom structure to move laterally outside the bidirectional lead screw 13. Drive block A9 drives the connecting plate A8 to move, and drive block B14 drives the connecting plate B11 to move, so that the connecting plate A8 and connecting plate B11 respectively contact the object to be tested, thereby facilitating the fixation of the object to be tested and preventing the object to be tested from shifting.

[0035] To improve the stability of the movement of connecting plate A8 and connecting plate B11, for example, such as Figure 2As shown, the present invention also includes symmetrically welded limit blocks 18 on the outside of both the connecting plate A8 and the connecting plate B11, and symmetrically provided limit grooves 17 on the inner side of the placement frame 4 to allow the limit blocks 18 to slide.

[0036] When the connecting plate A8 and the connecting plate B11 move during use, the limiting blocks 18 that are symmetrically welded to the outside of the connecting plate A8 and the connecting plate B11 slide within the limiting grooves 17 that are symmetrically opened in the placement frame 4, thereby improving the stability of the movement of the connecting plate A8 and the connecting plate B11.

[0037] To improve the stability of the movement of the driver board 6, for example, such as Figure 3 and Figure 4 As shown, the present invention also includes a fixing sleeve 27 snapped into the inner side of the drive plate 6, and a fixing rod 24 slidably connected to the inner side of the fixing sleeve 27. Ball bearings 19 that stabilize the movement of the drive plate 6 are symmetrically embedded in the inner side of the transmission frame 23.

[0038] When in use, as the drive plate 6 moves within the transmission frame 23, the fixed sleeve 27 on the drive plate 6 slides outside the fixed rod 24 welded inside the transmission frame 23. At the same time, the drive plate 6 contacts the ball bearing 19 inside the transmission frame 23, and the ball bearing 19 begins to roll, thereby improving the stability of the drive plate 6 movement.

[0039] To improve the stability of the lateral movement of the transmission frame 23, for example, such as Figure 3 As shown, the present invention also includes a sliding sleeve 20 symmetrically welded to the bottom of the transmission frame 23, and a sliding rod 21 slidably connected to the inner side of the sliding sleeve 20.

[0040] When in use, as the transmission frame 23 moves, the symmetrical sliding sleeves 20 at the bottom of the transmission frame 23 slide outside the sliding rods 21 that are symmetrically welded inside the hardness tester body 1, thereby improving the stability of the lateral movement of the transmission frame 23.

[0041] For electrical equipment to function properly, for example, such as Figure 1 , Figure 2 and Figure 3 As shown, this utility model also includes the fact that the input ends of the servo motor A15, servo motor B25, cylinder 22 and electric telescopic rod 3 are all electrically connected to the power supply end of an external power source.

[0042] When in use, the electrical equipment works normally by connecting to an external power source.

[0043] When this utility model is in use, after the object to be tested is fixed in the placement frame 4, the cylinder 22 in the hardness tester body 1 is driven by the external controller to move the transmission frame 23. Then, the servo motor B25 in the transmission frame 23 is driven by the external controller to rotate the threaded rod 28. Then, the transmission block 26 outside the threaded rod 28 is limited by the bottom structure to move laterally. Then, the transmission block 26 drives the drive plate 6 to move. Then, the drive plate 6 drives the object to be tested in the placement frame 4 to move, which makes it easier to adjust the position of the object to be tested and improves the testing efficiency of the object.

[0044] After the position of the object to be tested is adjusted, the electric telescopic rod 3 inside the hardness tester body 1 is driven by the external controller to move the test rod 5, so that the test rod 5 contacts the object to be tested, and then the test result is displayed on the display screen 2 outside the hardness tester body 1.

[0045] When the object to be tested is placed in the placement rack 4, the servo motor A15 inside the placement rack 4 converts the received electrical energy into mechanical energy under the action of the external controller. The servo motor A15 drives the bidirectional lead screw 13 to rotate. The drive block A9 and drive block B14 outside the bidirectional lead screw 13 are both limited by the bottom structure to move laterally outside the bidirectional lead screw 13. The drive block A9 drives the connecting plate A8 to move, and the drive block B14 drives the connecting plate B11 to move, so that the connecting plate A8 and the connecting plate B11 respectively contact the object to be tested, thereby facilitating the fixation of the object to be tested and preventing the object to be tested from shifting.

[0046] When connecting plate A8 and connecting plate B11 move, the limiting blocks 18 symmetrically welded to the outside of connecting plate A8 and connecting plate B11 slide in the limiting grooves 17 symmetrically opened in the placement frame 4, thereby improving the stability of the movement of connecting plate A8 and connecting plate B11.

[0047] When the drive plate 6 moves within the transmission frame 23, the fixed sleeve 27 on the drive plate 6 slides outside the fixed rod 24 welded inside the transmission frame 23. At the same time, the drive plate 6 contacts the ball 19 inside the transmission frame 23, and the ball 19 begins to roll, thereby improving the stability of the drive plate 6 movement.

[0048] When the transmission frame 23 moves, the symmetrical sliding sleeves 20 at the bottom of the transmission frame 23 slide outside the sliding rods 21 that are symmetrically welded inside the hardness tester body 1, thereby improving the stability of the lateral movement of the transmission frame 23.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stable durometer comprising, The hardness tester body (1) is internally screwed with a power-driven telescopic rod (3), and the power output end of the telescopic rod (3) is screwed with a test rod (5) for testing objects, the hardness tester body (1) is externally screwed with a display screen (2) for displaying test results, the hardness tester body (1) is internally bolted with a power-driven air cylinder (22), and the power output end of the air cylinder (22) is screwed with a transmission frame (23), the transmission frame (23) is internally bolted with a power-driven servo motor B (25), and the power output end of the servo motor B (25) is keyed with a threaded rod (28), the threaded rod (28) is externally threaded with a transmission block (26), and the transmission block (26) is welded with a driving plate (6) at the top, the driving plate (6) is internally screwed with a placing rack (4) for placing objects to be tested, and the placing rack (4) is internally provided with a positioning assembly (7) for fixing the objects to be tested.

2. The stabilised durometer according to claim 1, characterised in that, The positioning assembly (7) comprises a servo motor A (15), a bidirectional screw rod (13), a driving block A (9), a driving block B (14), a connecting plate A (8), a connecting plate B (11), a limiting block (18), a limiting groove (17), a connecting rod (10), a gear A (16) and a gear B (12), the placing rack (4) is internally bolted with a power-driven servo motor A (15), and the power output end of the servo motor A (15) is keyed with a connecting rod (10), the connecting rod (10) is externally sleeved with a transmission gear A (16), and the gear A (16) is externally meshed with a gear B (12), the gear B (12) is internally clamped with a bidirectional screw rod (13), and the bidirectional screw rod (13) is externally threaded with a driving block A (9) and a driving block B (14), the driving block A (9) is located on the right side of the driving block B (14), and the driving block A (9) is externally welded with a connecting plate A (8) in contact with the object to be tested, and the driving block B (14) is externally welded with a connecting plate B (11) in contact with the object to be tested.

3. The stabilised durometer according to claim 2, characterised in that, The connecting plate A (8) and the connecting plate B (11) are symmetrically welded with limiting blocks (18) on the outside, and the placing rack (4) is symmetrically provided with limiting grooves (17) on the inside for sliding the limiting blocks (18).

4. The stabilised durometer according to claim 1, characterised in that, The inside of the driving plate (6) is clamped with a fixing sleeve (27), and the inside of the fixing sleeve (27) is slidably connected with a fixing rod (24), and the inside of the transmission frame (23) is symmetrically inlaid with ball bearings (19) for stabilizing the movement of the driving plate (6).

5. The stabilised durometer according to claim 1, characterised in that, The bottom of the transmission frame (23) is symmetrically welded with a sliding sleeve (20), and the inside of the sliding sleeve (20) is slidably connected with a sliding rod (21).

6. The stabilised durometer according to claim 2, characterised in that, The input ends of the servo motor A (15), the servo motor B (25), the air cylinder (22) and the telescopic rod (3) are electrically connected with the power supply end of the external power supply.

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