A metal product hardness detection device

Abstract

This application relates to the technical field of metal hardness testing, and in particular to a metal product hardness testing device, comprising a body, a slide bar at the top of the body with a trigger block at the top of the slide bar, and a testing head at the bottom of the body; it also includes a standard block located below the body for calibration with the testing head; sliders are slidably embedded on both sides of the body, connected to the standard block by connecting rods, and a positioning rod inside the sliders to limit the slider's movement direction; a spring is located at the top of the sliders to keep the standard block in contact with the testing head. By placing a standard block at the bottom of the portable body, sliding sliders on both sides of the body, connecting the sliders to the standard block via connecting rods, ensuring stable slider movement, and ensuring the standard block can be in contact with the testing head, the ease of operation during device calibration is improved.

Description

Technical Field

[0001] This application relates to the technical field of metal hardness testing, and in particular to a device for testing the hardness of metal products. Background Technology

[0002] In the field of metal product hardness testing, portable hardness testing devices are widely used due to their portability and flexibility in various scenarios (such as workshops and outdoor operations). However, existing portable hardness testing devices have significant shortcomings: while they are portable, the standard blocks used for calibration and zeroing are mostly independent components, lacking integration with the device itself. During use, the standard blocks must be carried and stored separately, which not only increases the risk of loss or damage affecting calibration accuracy, but also requires frequent manual handling to pick up and place the standard blocks and align them with the testing head, making the process cumbersome, reducing testing efficiency, and increasing the risk of inaccurate calibration due to human error. Therefore, to address these issues, this application provides a metal product hardness testing device. Utility Model Content

[0003] To address the aforementioned problems, this application provides a device for testing the hardness of metal products.

[0004] This application provides a metal product hardness testing device, which includes a body, a slide bar at the top of the body, a trigger block at the top of the slide bar, and a testing head at the bottom of the body.

[0005] It also includes a standard block, which is located below the machine body and is used to calibrate the detection head;

[0006] The machine body has sliders slidably embedded on both sides. The sliders are connected to the standard block by a connecting rod. The sliders are equipped with positioning rods on the inside to limit the direction of movement of the sliders.

[0007] A spring is provided at the top of the slider to keep the standard block in contact with the detection head.

[0008] By setting a standard block at the bottom of the portable device, and sliding blocks on both sides of the device, the sliders are connected to the standard block through connecting rods. The positioning rod on the inside of the slider ensures the stability of the slider's movement direction, and the spring at the top ensures that the standard block can fit against the detection head of the device, thereby improving the convenience of operation during device calibration.

[0009] Preferably, the surface of the machine body is provided with a display screen for displaying hardness test data.

[0010] Preferably, the surface of the machine body is provided with a button for triggering operations such as detection.

[0011] Preferably, a rotating shaft is provided on one side of the machine body for assisting in the installation of components and for making the position of the standard block adjustable.

[0012] Preferably, the machine body is provided with a groove for insertion and placement between it and the flipped standard block.

[0013] Preferably, the connection between the connecting rod and the slider and the standard block is hinged, so that the standard block can adapt its angle within a certain range and ensure the stability of its fit with the detection head.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By setting a standard block at the bottom of the portable device, and sliding blocks on both sides of the device, the sliders are connected to the standard block through connecting rods. The positioning rod on the inside of the slider ensures the stability of the slider's movement direction, and the spring at the top ensures that the standard block can fit against the detection head of the device, thereby improving the convenience of operation during device calibration. Attached Figure Description

[0016] Figure 1 It is the isometric drawing in Embodiment 1 of this application;

[0017] Figure 2 This is the rear view isometric drawing from Embodiment 1 of this application;

[0018] Figure 3 This is a standard block structure diagram in Embodiment 1 of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Body; 101. Groove; 2. Display screen; 3. Slide bar; 4. Trigger block; 5. Button; 6. Detection head; 7. Standard block; 8. Slider; 9. Connecting rod; 10. Rotating shaft; 11. Positioning rod; 12. Spring. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 3 This application will be described in further detail.

[0021] Example 1:

[0022] I. Overall Structure and Component Relationship

[0023] This metal product hardness testing device mainly consists of a body 1, a slide bar 3, a trigger block 4, a testing head 6, a standard block 7, a slider 8, a connecting rod 9, a positioning rod 11, and a spring 12. These components work together to achieve the functions of metal product hardness testing and convenient calibration. The installation, function, and collaborative working process of each component are explained below.

[0024] II. Detailed Description of Each Component

[0025] (a) Body 1

[0026] The main body 1 is the main supporting structure of the device, integrating multiple functional components. A slide bar 3 is fixedly installed vertically on its top, and a trigger block 4 is installed at the top of the slide bar 3. The trigger block 4 can cooperate with the detection process and play a role in signal triggering during the detection operation (such as triggering the start of hardness detection, data acquisition and other related actions). The detection head 6 extends downward from the bottom of the main body 1. The detection head 6 is a key component that directly contacts the metal product or standard block 7 to perform hardness detection and calibration.

[0027] The machine body 1 has sliding structures (such as grooves) on both sides that are adapted to the slider 8 for mounting the slider 8, allowing the slider 8 to slide stably in a preset direction. A rotating shaft 10 connects components on one side of the machine body 1. The rotational characteristics of the rotating shaft 10 allow for flexible adjustment of the position of associated components, thus assisting in the adaptation of the standard block 7 to the detection head 6. The surface of the machine body 1 integrates a display screen 2 and buttons 5. The display screen 2 visually displays hardness testing data and equipment status information (such as calibration status and battery level). Buttons 5 serve as operation input components; pressing buttons 5 allows operators to perform operations such as triggering the test, switching modes (such as calibration mode and testing mode), and confirming data. Additionally, a groove 101 is provided on the machine body 1. The size and shape of the groove 101 are adapted to the flipped standard block 7. When the standard block 7 is not needed for calibration, it can be flipped and inserted into the groove 101 for safekeeping, preventing the standard block 7 from shaking or being bumped when idle, thus avoiding any impact on accuracy.

[0028] (ii) Slider 8 and positioning rod 11

[0029] The slider 8 is slidably embedded on both sides of the body 1, and a positioning rod 11 is fixedly installed on its inner side. The positioning rod 11 cooperates with the corresponding part of the body 1 (such as the structure on the body 1 for the positioning rod 11 to pass through and guide), restricting the slider 8 to slide only in a direction parallel to the axis of the detection head 6 (i.e., the vertical direction or a preset sliding direction close to the vertical), preventing the slider 8 from deviating or shaking during the sliding process, ensuring the stability of the slider 8's movement trajectory, and providing a basis for the stable operation of the connecting rod 9 and the standard block 7. The top of the slider 8 is connected to one end of the spring 12, and the other end of the spring 12 can be connected to a fixed part such as the body 1 or the slider 3. The spring 12 is in a compressed or pre-tensioned state (adjusted according to the installation method). Utilizing the elastic force of the spring 12, it always gives the slider 8 a downward force tendency, which is then transmitted through the connecting rod 9 to keep the standard block 7 in contact with the detection head 6.

[0030] (III) Link 9

[0031] The two ends of the connecting rod 9 are connected to the slider 8 and the standard block 7 respectively by hinges (such as through hinge shafts, spherical bearings, etc.). The hinge connection gives the connecting rod 9 and the standard block 7 a certain degree of freedom of movement. When the slider 8 slides along the machine body 1, the connecting rod 9 can adapt to the angle change and drive the standard block 7 to move synchronously. At the same time, if there is a slight angle deviation during the contact between the standard block 7 and the detection head 6, the hinge structure allows the standard block 7 to adaptively adjust the angle within a certain range to ensure that the standard block 7 and the detection head 6 are stably attached, thus ensuring the accuracy of calibration and hardness testing.

[0032] (iv) Standard Block 7

[0033] The standard block 7, a calibration component with known hardness, is placed below the main body 1 and is used to cooperate with the detection head 6 to complete the calibration operation. It is connected to the slider 8 via a connecting rod 9. Under the elastic force of the spring 12, the standard block 7 continuously experiences a force towards the detection head 6, keeping them in contact. When device calibration is required, the standard block 7 serves as a known hardness benchmark. The detection head 6 contacts the standard block 7 for testing, and combined with the device's algorithm, the test data is calibrated to zero (or the corresponding standard hardness value). Subsequent testing of metal products can then accurately measure hardness based on this calibrated benchmark.

[0034] III. Device Workflow Description

[0035] (I) Calibration Calibration Procedure

[0036] When the device needs to be calibrated, if the standard block 7 is in the retracted state (inserted into the groove 101), the retraction restriction of the standard block 7 is first released through the cooperation of components such as the rotating shaft 10, and it is flipped to the position corresponding to the detection head 6 directly below the machine body 1. At this time, under the elastic force of the spring 12, the slider 8 slides downward along the sliding structure of the machine body 1 (or maintains a downward trend), and drives the standard block 7 upward through the connecting rod 9 until the standard block 7 is stably attached to the detection head 6. The operator operates button 5 to start the calibration mode. The detection head 6 collects the hardness data of the contact with the standard block 7. The device performs calibration calculations based on the known hardness value of the standard block 7, adjusts the detection benchmark to zero (or the corresponding standard state), and completes the calibration operation, providing an accurate benchmark for subsequent hardness testing of metal products.

[0037] (II) Hardness Testing Procedure

[0038] After calibration, if the standard block 7 does not need to remain in contact with the testing head 6, it can be flipped over and inserted into the groove 101 for storage. Then, the operator holds the device (its portable design allows for easy movement), aligns the testing head 6 with the surface of the metal product to be tested, and presses button 5 to trigger the test. The testing head 6 collects hardness data from the contact with the metal product. After processing by the internal circuitry and algorithms of the machine body 1, the hardness data is converted into a visual value and displayed on the screen 2, allowing the operator to read the hardness result of the metal product.

[0039] (III) Description of component motion coordination

[0040] During calibration, the slider 8 slides along the body 1 under the influence of the spring 12 and the linkage between the standard block 7 and the connecting rod 9. The positioning rod 11 strictly restricts the slider 8 to move only in the vertical direction (or the preset guide direction) to prevent the slider 8 from deviating and causing poor contact between the standard block 7 and the detection head 6. The hinge characteristic of the connecting rod 9 allows the standard block 7 to adapt to its angle. Even if there is a slight tilt in the device or a deviation in the contact position between the detection head 6 and the standard block 7, stable contact can be ensured through angle adaptation, thus guaranteeing calibration accuracy. After calibration is completed and the testing phase begins, each component returns to or maintains a state adapted to the testing process, continuously providing structural and functional support for hardness testing.

[0041] IV. Summary of the advantages of the device

[0042] Through the design and collaborative work of the aforementioned components, this metal product hardness testing device achieves the following core advantages: First, with the calibration structure consisting of standard block 7, spring 12, slider 8, and connecting rod 9, device calibration can be easily completed without additional complex operating tools or cumbersome calibration steps, improving the efficiency of pre-test preparation; Second, the design of positioning rod 11 and hinged connecting rod 9 ensures stable contact and accurate calibration between standard block 7 and test head 6 during the calibration process, providing a reliable benchmark for hardness testing; Third, the storage design of standard block 7 (groove 101 insertion) balances calibration function and idle storage, preventing standard block 7 from shaking or being bumped when idle, thus ensuring that the device is both easy to operate and guarantees accurate and reliable test results in metal product hardness testing scenarios.

[0043] The foregoing description, with reference to preferred embodiments, illustrates an exemplary implementation of a metal product hardness testing device provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A device for testing the hardness of metal products, characterized in that: Includes a body (1), the top of the body (1) is provided with a slide bar (3), the top of the slide bar (3) is provided with a trigger block (4), and the bottom of the body (1) is provided with a detection head (6); It also includes a standard block (7), which is located below the body (1) and is used to calibrate the detection head (6); The body (1) has sliders (8) slidably embedded on both sides. The sliders (8) are connected to the standard block (7) by a connecting rod (9). The inner side of the sliders (8) is provided with a positioning rod (11) to limit the movement direction of the sliders (8). A spring (12) is provided on the top of the slider (8), and the spring (12) is used to keep the standard block (7) and the detection head (6) in contact.

2. The metal product hardness testing device according to claim 1, characterized in that: The surface of the body (1) is provided with a display screen (2) for displaying hardness test data.

3. The metal product hardness testing device according to claim 1, characterized in that: The surface of the body (1) is provided with a button (5) for triggering the detection operation.

4. The metal product hardness testing device according to claim 1, characterized in that: The machine body (1) has a rotating shaft (10) on one side for assisting in the installation of components and making the position of the standard block (7) adjustable.

5. The metal product hardness testing device according to claim 1, characterized in that: The body (1) is provided with a groove (101) for insertion and placement between it and the flipped standard block (7).

6. The metal product hardness testing device according to claim 1, characterized in that: The connection between the connecting rod (9), the slider (8), and the standard block (7) is hinged, so that the standard block (7) can adapt to the angle within a certain range, ensuring the stability of the fit with the detection head (6).

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