A hardness testing device for product quality inspection
By designing clamping and positioning components, the problem of product displacement caused by external pressure during hardness measurement was solved, thus achieving accuracy and stability in hardness testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陈怡
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
AI Technical Summary
During hardness measurement, the product is prone to displacement due to external pressure, which affects the accuracy of the hardness test results.
It employs a structure including clamping components, a fixed shell, positioning components, and an electric telescopic rod. The clamping and positioning mechanisms restrict the product position, ensuring stability during the measurement process.
It effectively restricts the product's position, improves the accuracy of hardness testing, and prevents the product from shifting due to external pressure.
Smart Images

Figure CN224436037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product quality testing technology, specifically a hardness testing device for product quality testing. Background Technology
[0002] In machining, hardness testing equipment can perform Rockwell hardness testing on the surface of gear shafts to ensure transmission wear resistance. In the field of electronics manufacturing, it can perform Vickers hardness testing on chip packaging materials to ensure the impact resistance of precision components. This equipment is suitable for measuring the hardness values of metals, ceramics, composite materials, etc. Hardness testing devices are core testing tools covering multiple industries such as aerospace, automobile manufacturing, and medical devices, and running through the entire life cycle of material research and development, production quality control, and after-sales testing.
[0003] However, the above-mentioned device still has the following problems during implementation:
[0004] Existing technologies enable hardness testing devices to perform quality inspections on products. However, during the hardness measurement process, products are prone to displacement due to external pressure, which affects the accuracy of the hardness test results. Therefore, a hardness testing device for product quality inspection is proposed to solve the above problems. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a hardness testing device for product quality inspection, which has the advantage of restricting the product position and solves the problem that the product is easily displaced by external force during the hardness measurement process, thus affecting the accuracy of the hardness test measurement results.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hardness testing device for product quality inspection, comprising a hardness tester, an electric telescopic rod, and a placement plate, wherein the bottom of the electric telescopic rod is fixedly installed with the hardness tester, and the top of the electric telescopic rod is fixedly connected with the placement plate;
[0007] The inner cavity of the placement plate is provided with a mounting groove, the bottom of the mounting groove is provided with an opening, the top of the mounting groove is provided with a moving hole, and the number of moving holes is four. The inner cavity of the moving hole is movably connected to a clamping component.
[0008] The front side of the electric telescopic rod is fixedly connected to a fixed shell, and the front side of the fixed shell is provided with a mating hole, and the inner cavity of the mating hole is provided with a positioning component.
[0009] As a preferred embodiment of this utility model, the clamping assembly includes a movable block, a clamping block is fixedly connected to the top of the movable block, a control plate is fixedly connected to the bottom of the movable block, a threaded hole is provided on the side of the control plate near the opening, a threaded rod is movably connected to the inner cavity of the threaded hole, and the side of the threaded rod near the inner wall of the mounting groove is rotatably connected to the inner wall of the mounting groove through a bearing seat.
[0010] As a preferred embodiment of this utility model, the control board has two stroke holes on the side near the opening, and a stroke rod is movably connected to the inner cavity of the stroke hole. The side of the stroke rod near the inner wall of the mounting groove is fixedly connected to the inner wall of the mounting groove.
[0011] In a preferred embodiment of this invention, a first bevel gear is fixedly connected to the side of the threaded rod away from the control panel, a second bevel gear is meshed with the bottom of the first bevel gear, and the bottom of the second bevel gear is fixedly connected to the electric telescopic rod.
[0012] As a preferred embodiment of this utility model, a rotating ring is fixedly connected to the bottom of the placement plate, and a rotating groove is provided at the top of the electric telescopic rod to cooperate with the rotating ring. The rotating ring is slidably connected to the inner cavity of the rotating groove.
[0013] As a preferred embodiment of this utility model, the surface of the electric telescopic rod is provided with a plurality of slots, which are evenly distributed on the surface of the electric telescopic rod.
[0014] In a preferred embodiment of the present invention, the positioning component includes a first pressing block, a locking rod fixedly connected to the rear side of the first pressing block, the rear side of the locking rod penetrating the fixing shell and extending into the inner cavity of the locking groove, a spring sleeved on the surface of the locking rod, a second pressing block movably connected to the top of the first pressing block, and a pull plate fixedly connected to the front side of the second pressing block.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model solves the problem that the product is prone to displacement due to external pressure during hardness measurement, which affects the accuracy of the hardness test results, by setting up a clamping component, a fixing shell, a mating hole and a positioning component, thereby achieving the effect of restricting the position of the product.
[0017] 2. This utility model, by setting up a clamping assembly, a stroke hole, a stroke rod, a first bevel gear, a second bevel gear, a rotating ring, and a rotating groove, allows the rotating ring and rotating groove to position the rotation of the placement plate when it is rotated. The first bevel gear meshes with the second bevel gear, which can drive the four threaded rods to rotate, thus simultaneously driving the four clamping blocks to clamp the product. The stroke rod and stroke hole can control the movement position of the control plate.
[0018] 3. By setting a slot and positioning component, the card rod can be inserted into the slot at different positions to fix the placement plate at different positions. When the second extrusion block moves to the top of the first extrusion block, the spring will undergo elastic deformation and automatically drive the second extrusion block and the card rod back to their original positions. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a three-dimensional sectional view;
[0021] Figure 3 This is a three-dimensional sectional view of an electric telescopic pole.
[0022] Figure 4 This is a three-dimensional sectional view of the fixed shell.
[0023] In the diagram: 1. Hardness tester; 2. Electric telescopic rod; 3. Placement plate; 4. Mounting slot; 5. Opening; 6. Moving hole; 7. Clamping assembly; 8. Fixed shell; 9. Mating hole; 10. Positioning assembly; 71. Moving block; 72. Clamping block; 73. Control board; 74. Threaded hole; 75. Threaded rod; 11. Stroke hole; 12. Stroke rod; 13. First bevel gear; 14. Second bevel gear; 15. Rotating ring; 16. Rotating groove; 17. Slot; 101. First pressing block; 102. Clamping rod; 103. Spring; 104. Second pressing block; 105. Pull plate. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] 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 different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0028] Example 1
[0029] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a hardness testing device for product quality inspection, including a hardness tester 1, an electric telescopic rod 2 and a placement plate 3. The bottom of the electric telescopic rod 2 is fixedly installed with the hardness tester 1, and the top of the electric telescopic rod 2 is fixedly connected with the placement plate 3.
[0030] The inner cavity of the placement plate 3 is provided with a mounting groove 4, the bottom of the mounting groove 4 is provided with an opening 5, the top of the mounting groove 4 is provided with a moving hole 6, and there are four moving holes 6. The inner cavity of the moving hole 6 is movably connected to a clamping assembly 7.
[0031] The front side of the electric telescopic rod 2 is fixedly connected to a fixed shell 8, and the front side of the fixed shell 8 is provided with a mating hole 9. The inner cavity of the mating hole 9 is provided with a positioning component 10.
[0032] Specifically, when the hardness testing device is in use, the clamping component 7 can position the product, and the positioning component 10 can quickly fix the position of the placement plate 3.
[0033] Furthermore, the product is placed on top of the placement plate 3, and then the placement plate 3 is rotated on top of the electric telescopic rod 2, which in turn drives the rotating ring 15 to rotate in the rotating groove 16.
[0034] Example 2
[0035] The second embodiment of this utility model provides a hardness testing device for product quality inspection. The clamping assembly 7 includes a movable block 71, a clamping block 72 fixedly connected to the top of the movable block 71, and a control plate 73 fixedly connected to the bottom of the movable block 71. A threaded hole 74 is formed on the side of the control plate 73 near the opening 5. A threaded rod 75 is movably connected to the inner cavity of the threaded hole 74. The side of the threaded rod 75 near the inner wall of the mounting groove 4 is rotatably connected to the inner wall of the mounting groove 4 via a bearing seat. A travel hole 11 is formed on the side of the control plate 73 near the opening 5, and the number of travel holes 11 is [number missing]. Two, the inner cavity of the stroke hole 11 is movably connected to the stroke rod 12, the side of the stroke rod 12 near the inner wall of the mounting groove 4 is fixedly connected to the inner wall of the mounting groove 4, the side of the threaded rod 75 away from the control plate 73 is fixedly connected to the first bevel gear 13, the bottom of the first bevel gear 13 is meshed with the second bevel gear 14, the bottom of the second bevel gear 14 is fixedly connected to the electric telescopic rod 2, the bottom of the placement plate 3 is fixedly connected to the rotating ring 15, the top of the electric telescopic rod 2 is provided with a rotating groove 16 that cooperates with the rotating ring 15, and the rotating ring 15 is slidably connected to the inner cavity of the rotating groove 16.
[0036] Specifically, by setting up the clamping assembly 7, stroke hole 11, stroke rod 12, first bevel gear 13, second bevel gear 14, rotating ring 15, and rotating groove 16, when the placement plate 3 is rotated, the rotating ring 15 and rotating groove 16 can position the rotation of the placement plate 3. The first bevel gear 13 and the second bevel gear 14 mesh, which can drive the four threaded rods 75 to rotate, thus simultaneously driving the four clamping blocks 72 to clamp the product. The stroke rod 12 and stroke hole 11 can control the movement position of the control plate 73.
[0037] Furthermore, at this time, the four first bevel gears 13 will mesh with the second bevel gears 14. The rotation of the first bevel gears 13 will drive the threaded rod 75 to rotate. The rotation of the threaded rod 75 will drive the threaded control plate 73 to move. The movement of the control plate 73 will drive the moving block 71 to move. The movement of the moving block 71 will drive the four clamping blocks 72 to clamp the product.
[0038] Example 3
[0039] The second embodiment of this utility model provides a hardness testing device for product quality inspection. The surface of the electric telescopic rod 2 is provided with a groove 17, and there are multiple grooves 17 evenly distributed on the surface of the electric telescopic rod 2. The positioning component 10 includes a first pressing block 101. A clamping rod 102 is fixedly connected to the rear side of the first pressing block 101. The rear side of the clamping rod 102 penetrates the fixing shell 8 and extends into the inner cavity of the groove 17. A spring 103 is sleeved on the surface of the clamping rod 102. A second pressing block 104 is movably connected to the top of the first pressing block 101. A pull plate 105 is fixedly connected to the front side of the second pressing block 104.
[0040] Specifically, by setting the slot 17 and positioning component 10, the lever 102 can be inserted into the slot 17 at different positions to fix the placement plate 3 at different positions. When the second pressing block 104 moves to the top of the first pressing block 101, the spring 103 will undergo elastic deformation to automatically drive the second pressing block 104 and the lever 102 back to their original positions.
[0041] Furthermore, when the clamping block 72 no longer needs to move, the pull plate 105 lowers the second pressing block 104. The movement of the second pressing block 104 will compress the spring 103. When the second pressing block 104 moves to the bottom, it will drive the locking rod 102 to insert into the locking slot 17, thus fixing the position of the placement plate 3.
[0042] Working principle:
[0043] The product is placed on top of the placement plate 3, and then the placement plate 3 is rotated on top of the electric telescopic rod 2. This causes the rotating ring 15 to rotate in the rotating groove 16. At this time, the four first bevel gears 13 will mesh with the second bevel gears 14. The rotation of the first bevel gears 13 will drive the threaded rod 75 to rotate. The rotation of the threaded rod 75 will drive the threaded control plate 73 to move. The movement of the control plate 73 will drive the moving block 71 to move. The movement of the moving block 71 will drive the four clamping blocks 72 to clamp the product. When the clamping blocks 72 no longer need to move, the pull plate 105 is pulled down to drive the second pressing block 104 to descend. The movement of the second pressing block 104 will compress the spring 103. When the second pressing block 104 moves to the bottom, the second pressing block 104 will drive the clamping rod 102 to insert into the clamping groove 17. At this time, the position of the placement plate 3 can be fixed.
[0044] In summary, the product position is restricted through the cooperation of the clamping component 7, the fixing shell 8, the mating hole 9, and the positioning component 10.
[0045] The hardness tester 1, electric telescopic rod 2, threaded rod 75, first bevel gear 13 and second bevel gear 14 used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, etc., which are commonly used by those skilled in the art.
[0046] It should be noted that (hardness tester 1, electric telescopic rod 2, threaded rod 75, first bevel gear 13 and second bevel gear 14) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.
[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A hardness testing device for product quality inspection, comprising a hardness tester (1), an electric telescopic rod (2), and a placement plate (3), characterized in that: The bottom of the electric telescopic rod (2) is fixedly installed with the hardness tester (1), and the top of the electric telescopic rod (2) is fixedly connected with the placement plate (3). The inner cavity of the placement plate (3) is provided with an installation groove (4), the bottom of the installation groove (4) is provided with an opening (5), the top of the installation groove (4) is provided with a moving hole (6), and the number of moving holes (6) is four. The inner cavity of the moving hole (6) is movably connected to a clamping assembly (7). The electric telescopic rod (2) is fixedly connected to a fixed shell (8) on the front side. The fixed shell (8) has a mating hole (9) on the front side. The inner cavity of the mating hole (9) is provided with a positioning component (10).
2. The hardness testing device for product quality inspection according to claim 1, characterized in that: The clamping assembly (7) includes a moving block (71), a clamping block (72) is fixedly connected to the top of the moving block (71), and a control plate (73) is fixedly connected to the bottom of the moving block (71). The control plate (73) has a threaded hole (74) on the side near the opening (5). A threaded rod (75) is movably connected to the inner cavity of the threaded hole (74). The threaded rod (75) is rotatably connected to the inner wall of the mounting groove (4) on the side near the inner wall of the mounting groove (4) through a bearing seat.
3. The hardness testing device for product quality inspection according to claim 2, characterized in that: The control plate (73) has a stroke hole (11) on the side near the opening (5), and there are two stroke holes (11). The inner cavity of the stroke hole (11) is movably connected to a stroke rod (12). The side of the stroke rod (12) near the inner wall of the mounting groove (4) is fixedly connected to the inner wall of the mounting groove (4).
4. The hardness testing device for product quality inspection according to claim 2, characterized in that: The threaded rod (75) is fixedly connected to a first bevel gear (13) on the side away from the control plate (73). The bottom of the first bevel gear (13) is meshed with a second bevel gear (14). The bottom of the second bevel gear (14) is fixedly connected to the electric telescopic rod (2).
5. The hardness testing device for product quality inspection according to claim 1, characterized in that: The bottom of the placement plate (3) is fixedly connected to a rotating ring (15), and the top of the electric telescopic rod (2) is provided with a rotating groove (16) that works with the rotating ring (15). The rotating ring (15) is slidably connected to the inner cavity of the rotating groove (16).
6. The hardness testing device for product quality inspection according to claim 1, characterized in that: The surface of the electric telescopic rod (2) is provided with slots (17), and there are multiple slots (17) evenly distributed on the surface of the electric telescopic rod (2).
7. The hardness testing device for product quality inspection according to claim 6, characterized in that: The positioning component (10) includes a first pressing block (101), a locking rod (102) is fixedly connected to the rear side of the first pressing block (101), the rear side of the locking rod (102) penetrates the fixing shell (8) and extends to the inner cavity of the locking groove (17), a spring (103) is sleeved on the surface of the locking rod (102), a second pressing block (104) is movably connected to the top of the first pressing block (101), and a pull plate (105) is fixedly connected to the front side of the second pressing block (104).