Auxiliary tool for calibrating hardness value of durometer
By designing an auxiliary tool for hardness tester calibration, a motor-driven rotating rod and fan are used to achieve uniform cooling of the material, and a cleaning mechanism is used to remove dust. This solves the problem of the influence of material surface temperature differences on test results, improves the accuracy of hardness tester calibration, and simplifies the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KEYAO MICROELECTRONICS (GUANGDONG) CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-01
AI Technical Summary
In the current calibration process of hardness testers, temperature differences on the material surface cause changes in hardness values, affecting the accuracy of the test results.
A calibration auxiliary tool for hardness tester values was designed, comprising a support plate, a motor, a rotating rod, gears, a toothed rod, a fan, and a cleaning mechanism. The motor drives the rotating rod to move the toothed rod and the fan, achieving uniform cooling of the material. The cleaning mechanism removes dust, ensuring the accuracy of the calibration process.
This method achieves uniform cooling of materials during calibration, reduces the impact of temperature changes on hardness values, improves the accuracy and reliability of test results, simplifies the operation process, and reduces errors.
Smart Images

Figure CN224189803U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hardness tester technology, and in particular relates to an auxiliary tool for calibrating the hardness value of a hardness tester. Background Technology
[0002] A hardness tester is a specialized precision measuring instrument primarily used to determine a material's ability to resist indentation by a harder object, thereby measuring the material's hardness characteristics. Different types of hardness testers are suitable for different materials and measurement needs. For example, Brinell hardness testers are often used to measure softer metals, while Rockwell hardness testers are widely used for hardness testing of metallic materials, and Vickers hardness testers can be used to measure thin parts and coatings. Through hardness testing, key data support can be provided for material quality control, performance evaluation, and processing technology optimization, playing an important role in many industrial fields such as metallurgy, machinery manufacturing, automotive, and aerospace, as well as in research institutions.
[0003] The hardness tester calibration auxiliary tool is a key component ensuring the accuracy of hardness tester measurements. It mainly consists of a standard hardness block, calibration software, and a compatible connecting cable. The standard hardness block, as the core component, has an accurate hardness value rigorously measured and assigned by authoritative institutions, providing a reliable comparison benchmark for the hardness tester. The calibration software analyzes, processes, and corrects the data collected by the hardness tester, optimizing the measurement algorithm. The connecting cable ensures stable data transmission between the hardness tester and the auxiliary tool. These calibration auxiliary tools work together during the hardness tester calibration process, helping operators complete the calibration work conveniently and efficiently, significantly improving the accuracy and reliability of hardness measurements, thereby ensuring the quality of hardness test results. It is widely used in scientific research and industrial applications. In industries where high precision in hardness measurement is critical, some calibration processes are complex, requiring multiple steps and auxiliary tools. For example, calibrating a Rockwell hardness tester involves initial calibration using a standard hardness block, followed by further adjustments with a calibration rod. This process requires continuous measurement and data recording, making it cumbersome and prone to errors. Existing technologies often integrate multi-functional calibration tools to reduce the number of tool changes required during calibration. Some hardness tester calibration devices integrate multiple hardness scale calibration functions, allowing software switching between different calibration modes without frequent changes to standard hardness blocks or adjustments to equipment parameters. However, the temperature of the material surface can vary, leading to differences in hardness and affecting the test results. Utility Model Content
[0004] The purpose of this invention is to provide an auxiliary tool for calibrating the hardness value of a hardness tester, aiming to solve the technical problem in the prior art where different temperatures on the material surface result in different hardness values, thus affecting the test results.
[0005] To achieve the above objectives, the present invention provides a hardness tester hardness value calibration auxiliary tool, comprising a support plate and a body. A connecting plate is fixedly connected to the top left side of the support plate, a U-shaped ring is fixedly connected to the left side of the connecting plate, a motor is fixedly connected to the left side of the U-shaped ring, a rotating rod is fixedly connected to the output end of the motor, a fixed rod is rotatably connected to the bottom of the rotating rod, a gear is rotatably connected to the middle left side of the connecting plate, and toothed rods are slidably connected to the upper and lower sides of the left side of the connecting plate. The gear meshes with the toothed rods, a circular ring is fixedly connected to the outer side of the bottom toothed rod, and the right side of the fixed rod is slidably connected to the circular ring. A fan is provided on the right side of the toothed rod, and a cleaning mechanism is installed on the top right side of the support plate for cleaning dust and impurities.
[0006] Optionally,
[0007] The cleaning mechanism includes a horizontal plate, which is fixedly connected to the top of the support plate. A knob is provided on the rear side of the top of the horizontal plate. A threaded rod is fixedly connected to the front side of the knob. A threaded block is threadedly connected to the outer side of the threaded rod. A cleaning rod is fixedly connected to the left side of the threaded block. A limit rod is fixedly connected to the bottom of the threaded block. A threaded rod is rotatably connected to the front side of the top of the horizontal plate. A threaded block is threadedly connected to the outer side of the threaded rod. The rear side of the threaded block is rotatably connected to the front end of the threaded rod.
[0008] Optionally,
[0009] Support legs are fixedly connected to the four corners at the bottom of the support plate, and foot pads are fixedly connected to the bottom of the support legs.
[0010] Optionally,
[0011] The top four corners of the bearing plate are each equipped with corner guards, and the outer side of each corner guard is threaded with a screw.
[0012] Optionally,
[0013] A warning sign is provided on the front side of the outer wall of the bearing plate, and two screws are threadedly connected to the outer side of the warning sign.
[0014] Optionally,
[0015] The front and rear ends of the right side of the support plate are fixedly connected to the mounting blocks, and the outer side of the mounting blocks is fixedly connected to the handles.
[0016] Optionally,
[0017] A storage box is fixedly connected to the rear right side of the support plate, and a cover plate is provided on the top wall of the storage box.
[0018] Optionally,
[0019] A mounting block is fixedly connected to the front right side of the support plate, and a hook is fixedly connected to the outer side of the mounting block.
[0020] The above-mentioned technical solutions in the hardness tester hardness value calibration auxiliary tool provided in this embodiment of the utility model have at least one of the following technical effects:
[0021] 1. In this utility model, after the motor is started, the rotating rod drives the fixed rod to move, which in turn causes the ring and the toothed rod to move. This movement is achieved through the two toothed rods of the gear, thus enabling the fan to move and uniformly cool the material.
[0022] 2. In this utility model, the rotation of the knob drives the first threaded rod and the first threaded block, and the cleaning rod and the limiting rod move accordingly. The limiting rod restricts the movement range of the cleaning rod. The rotation of the second threaded rod causes it to rise or fall, and it is connected to the first threaded rod to realize the raising and lowering of the cleaning rod to clean the dust on the material. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a front view of the hardness tester hardness value calibration auxiliary tool proposed in this utility model;
[0025] Figure 2 This is a perspective view of the hardness tester hardness value calibration auxiliary tool proposed in this utility model;
[0026] Figure 3 This is a side view of the hardness tester hardness value calibration auxiliary tool proposed in this utility model;
[0027] Figure 4 This is a partial structural diagram of the hardness tester hardness value calibration auxiliary tool proposed in this utility model;
[0028] Figure 5 This is a schematic diagram of the cleaning mechanism of the hardness tester hardness value calibration auxiliary tool proposed in this utility model.
[0029] The following are the labeling elements in the figure:
[0030] 1. Support plate; 2. Cleaning mechanism; 201. Horizontal plate; 202. Knob; 203. Threaded rod one; 204. Threaded block one; 205. Cleaning rod; 206. Limiting rod; 207. Threaded rod two; 208. Threaded block two; 3. Connecting plate; 4. U-ring; 5. Motor; 6. Rotating rod; 7. Fixing rod; 8. Gear; 9. Ring; 10. Fan; 11. Support leg; 12. Foot pad; 13. Corner protector; 14. Screw one; 15. Warning sign; 16. Screw two; 17. Placement block; 18. Handle; 19. Storage box; 20. Cover plate; 21. Mounting block; 22. Hook; 23. Body; 24. Gear rod. Detailed Implementation
[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0035] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, an auxiliary tool for calibrating the hardness value of a hardness tester is provided, including a support plate 1 and a body 23. A connecting plate 3 is fixedly connected to the top left side of the support plate 1, a U-shaped ring 4 is fixedly connected to the left side of the connecting plate 3, a motor 5 is fixedly connected to the left side of the U-shaped ring 4, and a rotating rod 6 is fixedly connected to the output end of the motor 5. The rotating rod 6 is rotated by the motor 5. A fixed rod 7 is rotatably connected to the bottom of the rotating rod 6. A gear 8 is rotatably connected to the middle of the left side of the connecting plate 3. Toothed rods 24 are slidably connected to the upper and lower sides of the left side of the connecting plate 3. The gear 8 meshes with the toothed rods 24, which will drive the toothed rods 24. The bottom toothed rod 24 is fixedly connected to a ring 9 on the outside. The right side of the fixed rod 7 is slidably connected to the ring 9. A fan 10 is provided on the right side of the toothed rod 24. A cleaning mechanism 2 is installed on the top right side of the support plate 1. The cleaning mechanism 2 is used to clean dust and impurities. Support legs 11 are fixedly connected to the four corners at the bottom of the support plate 1. Foot pads 12 are fixedly connected to the bottom of the support legs 11 to support the whole. Corner guards 13 are provided at the four corners at the top of the support plate 1. Screws 14 are threadedly connected to the outside of the corner guards 13. The corner guards 13 are fixed by screws 14.
[0036] Specifically, when motor 5 starts, its output end drives rotating rod 6 to rotate. Rotating rod 6 is connected to fixed rod 7. The movement of fixed rod 7 will cause ring 9 to move accordingly. Since ring 9 is fixedly connected to toothed rod 24, toothed rod 24 will also move accordingly. Gear 8 is installed on connecting plate 3. When the two toothed rods 24 move, they will drive the fan 10 connected to them to move accordingly. Support legs 11 are provided at the four corners of the bottom of bearing plate 1. Foot pads 12 are fixedly connected to the bottom of support legs 11 to achieve the overall support function. Corner guards 13 are provided at the four corners of the top of bearing plate 1. Screws 14 are threadedly connected to the outside of corner guards 13 to fix corner guards 13.
[0037] In another embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 5As shown, the cleaning mechanism 2 of the hardness tester hardness value calibration auxiliary tool includes a horizontal plate 201, which is fixedly connected to the top of the support plate 1. A knob 202 is provided on the rear side of the top of the horizontal plate 201. A threaded rod 203 is fixedly connected to the front side of the knob 202. Rotating the knob 202 causes the threaded rod 203 to rotate. A threaded block 204 is threadedly connected to the outer side of the threaded rod 203. A cleaning rod 205 is fixedly connected to the left side of the threaded block 204. A limit rod 206 is fixedly connected to the bottom of the threaded block 204. A threaded rod 207 is rotatably connected to the top front side of the horizontal plate 201. A threaded block 208 is threadedly connected to the outer side of the threaded rod 207. The rear side of the threaded block 208 is rotatably connected to the front end of the threaded rod 203. A warning sign 15 is provided on the front side of the outer wall of the bearing plate 1. A screw 16 is threadedly connected to the outer side of the warning sign 15. The warning sign 15 is fixed by the screw 16. A mounting block 17 is fixedly connected to the front and rear ends of the right side of the bearing plate 1. A handle 18 is fixedly connected to the outer side of the mounting block 17 to facilitate operation.
[0038] Specifically, rotating the knob 202 drives the threaded rod 203 to rotate. The threaded rod 203 is equipped with a threaded block 204, and a cleaning rod 205 and a limiting rod 206 are installed on the threaded block 204. The limiting rod 206 has a limiting function and can guide the cleaning rod 205 to move accordingly. When the threaded rod 207 is rotated, the threaded rod 207 will move up or down. Since the threaded rod 207 is connected to the threaded rod 203, the cleaning rod 205 will also move up and down accordingly. A warning sign 15 is provided on the front side of the outer wall of the support plate 1. The warning sign 15 is connected to the screw 2 16 by the outer thread to achieve fixation. The front and rear ends of the right side of the support plate 1 are provided with mounting blocks 17. A handle 18 is fixed on the outside of the mounting block 17 for easy operation.
[0039] In another embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the hardness tester hardness value calibration auxiliary tool has a storage box 19 fixedly connected to the rear right side of the support plate 1. The top wall of the storage box 19 is provided with a cover plate 20, which can be used to store some items. The front right side of the support plate 1 is fixedly connected to the mounting block 21. The outside of the mounting block 21 is fixedly connected to the hook 22, which can be used to hang some tools.
[0040] Specifically, the right rear end of the support plate 1 is fixedly connected to the storage box 19, the top wall of the storage box 19 is provided with a cover plate 20 for storing and using items, the right front end of the support plate 1 is fixedly connected to the mounting block 21, and the outer side of the mounting block 21 is provided with a hook 22 for hanging tools.
[0041] Working principle: When the motor 5 starts, its output end drives the rotating rod 6 to rotate. The rotating rod 6 is connected to the fixed rod 7. The movement of the fixed rod 7 will drive the ring 9 to move. Since the ring 9 is fixed to a toothed rod 24, it will drive the toothed rod 24 to move. Furthermore, a gear 8 is installed on the connecting plate 3. The movement of the two toothed rods 24 will drive the fan 10 fixed to them to move, thereby achieving uniform cooling of the material to be processed.
[0042] Rotating knob 202 causes threaded rod 203 to rotate. Threaded block 204 is threaded onto threaded rod 203, and cleaning rod 205 and limiting rod 206 are mounted on threaded block 204. Limiting rod 206 acts as a limit and can drive cleaning rod 205 to move. Rotating threaded rod 207 can make threaded rod 207 rise or fall. Since threaded rod 207 is connected to threaded rod 203, cleaning rod 205 can be raised and lowered to further remove dust from the material.
[0043] 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 and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hardness tester hardness value calibration auxiliary tool, comprising a support plate (1) and a body (23), characterized in that: A connecting plate (3) is fixedly connected to the top left side of the bearing plate (1). A U-shaped ring (4) is fixedly connected to the left side of the connecting plate (3). A motor (5) is fixedly connected to the left side of the U-shaped ring (4). A rotating rod (6) is fixedly connected to the output end of the motor (5). A fixed rod (7) is rotatably connected to the bottom of the rotating rod (6). A gear (8) is rotatably connected to the middle left side of the connecting plate (3). A toothed rod (24) is slidably connected to the upper and lower sides of the left side of the connecting plate (3). The gear (8) meshes with the toothed rod (24). A ring (9) is fixedly connected to the outer side of the bottom toothed rod (24). The right side of the fixed rod (7) is slidably connected to the ring (9). A fan (10) is provided on the right side of the toothed rod (24). A cleaning mechanism (2) is installed on the top right side of the bearing plate (1). The cleaning mechanism (2) is used to clean dust and impurities.
2. The hardness value calibration aid for durometers according to claim 1, characterized in that: The cleaning mechanism (2) includes a horizontal plate (201), which is fixedly connected to the top of the support plate (1). A knob (202) is provided on the rear side of the top of the horizontal plate (201). A threaded rod (203) is fixedly connected to the front side of the knob (202). A threaded block (204) is threadedly connected to the outer side of the threaded rod (203). A cleaning rod (205) is fixedly connected to the left side of the threaded block (204). A limit rod (206) is fixedly connected to the bottom of the threaded block (204). A threaded rod (207) is rotatably connected to the front side of the top of the horizontal plate (201). A threaded block (208) is threadedly connected to the outer side of the threaded rod (207). The rear side of the threaded block (208) is rotatably connected to the front end of the threaded rod (203).
3. The hardness tester hardness value calibration auxiliary tool according to claim 1, characterized in that: Support legs (11) are fixedly connected to the four corners of the bottom of the bearing plate (1), and foot pads (12) are fixedly connected to the bottom of the support legs (11).
4. The durometer hardness value calibration aid of claim 1, wherein: The top four corners of the bearing plate (1) are provided with corner guards (13), and the outer side of the corner guards (13) is threaded with screws (14).
5. The hardness tester hardness value calibration auxiliary tool according to claim 1, characterized in that: A warning sign (15) is provided on the front side of the outer wall of the bearing plate (1), and a screw (16) is threadedly connected to the outer side of the warning sign (15).
6. The durometer hardness value calibration aid of claim 1, wherein: The front and rear ends of the right side of the support plate (1) are fixedly connected to a mounting block (17), and a handle (18) is fixedly connected to the outside of the mounting block (17).
7. The durometer hardness value calibration aid of claim 1, wherein: A storage box (19) is fixedly connected to the rear right side of the support plate (1), and a cover plate (20) is provided on the top wall of the storage box (19).
8. The durometer hardness value calibration aid of claim 1, wherein: A mounting block (21) is fixedly connected to the front right side of the support plate (1), and a hook (22) is fixedly connected to the outside of the mounting block (21).