Device for improving measurement stability of table type durometer
By designing a device including a lifting handle, a conductive plate and a defining plate, the stability problem of benchtop hardness meter when measuring irregular samples is solved, achieving higher measurement stability and accuracy.
Patent Information
- Application Number
- CN202311518464.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-15
- Publication Date
- 2025-05-16
AI Technical Summary
When the benchtop hardness meter measures finished physical objects that are irregular or do not allow dissection, the sample may have position shifts or bends, resulting in unstable and inaccurate measurements.
A device is designed, including a planar workbench, base, lifting threaded column, conductive plate, lifting handle and defining plate, and the height of the platform is adjusted by rotating the lifting handle, and the detection sample is defined by using an electric push rod and a spring mechanism to ensure its stable placement.
It effectively avoids the problem of tilt or position shift during the measurement process, and improves the stability of the hardness meter measurement and the accuracy of the measurement data.
Smart Images
Figure CN120009105A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of hardness tester measurement, in particular to a device for improving the measurement stability of a desktop hardness tester. Background Art
[0002] The hardness value of metal products is a comprehensive performance index composed of a series of different physical quantities such as elasticity, plasticity, toughness, etc. A hardness tester is an instrument for measuring the hardness of an object. There are many methods for measuring the hardness of metal products, such as Brinell, Rockwell, Vickers and other hardness tests. Generally, a desktop hardness tester is used for testing. Fixed test equipment, such as Brinell hardness tester, Rockwell hardness tester, Vickers hardness tester, etc., are suitable for hardness measurement of small and medium-sized parts or test blocks in the laboratory. They are characterized by stable measurement repeatability and high accuracy, but the disadvantage is that they are limited to the weight and size of the workpiece being tested, or the finished physical parts that are not allowed to be dissected (such as plungers, sleeve pairs, finished bolt ends, etc.). Conventional desktop hardness testers are equipped with a flat workbench and V-groove tooling accessories to assist in the detection of various samples. These two platforms basically meet the detection needs of samples with planes, round surfaces, etc., but some small and medium-sized parts, irregular parts, and finished physical parts that are not allowed to be dissected are placed on the flat workbench for detection due to their irregular shapes. Under the action of the pressure of the detection head, the position may shift. At the same time, when the detection head is pressed down, the test sample may also appear to be tilted under the action of pressure, or unstable factors such as the required detection area cannot be detected, which makes the test sample unable to be placed stably, so it is impossible to perform effective measurement at the end of the sample or at a specified position. For this reason, we propose a device to improve the measurement stability of the desktop hardness tester. Summary of the invention
[0003] The present invention provides a device for improving the measurement stability of a desktop hardness tester, which solves the problems raised by the above background technology.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for improving the measurement stability of a desktop hardness tester, comprising a hardness tester, a flat workbench is arranged on the hardness tester, a base is placed on one side of the hardness tester, and two second lifting threaded columns are fixed on the top of the base, and an intermediate conductive plate is movably connected to the top of the two second lifting threaded columns, two first lifting threaded columns are movably connected to the top of the intermediate conductive plate, and a storage table is fixed to the top of the two first lifting threaded columns, and the first lifting threaded column and the second lifting threaded column both pass through the intermediate conductive plate, and an S-shaped lifting handle is movably sleeved on one side of the intermediate conductive plate.
[0005] Optionally, one end of the lifting handle extends into the interior of the intermediate conduction plate and is fixed with a conduction gear, and two first rotating gears and two second rotating gears are movably sleeved inside the intermediate conduction plate, and the bottom side of the conduction gear is engaged with the top of one of the first rotating gears.
[0006] Optionally, the middle of the first rotating gear is threadedly mounted on the first lifting threaded column, the middle of the second rotating gear is threadedly mounted on the second lifting threaded column, and the first rotating gear is meshed with the second rotating gear. At the same time, a linkage gear is meshed in the middle of the two second rotating gears, and the linkage gear is movably connected to the inner wall of the middle conduction plate.
[0007] Optionally, four slots are provided on the top of the storage table, two symmetrical first limiting rods are fixed on the inner walls of the slots, an L-shaped limiting plate is movably connected between the two first limiting rods, and two sliding grooves are provided on the inner side of the limiting plate.
[0008] Optionally, a second limiting rod is fixed in the slide groove, a first limiting base plate is movably connected between the two second limiting rods, a first spring is fixed on one side of the first limiting base plate, and one end of the first spring is fixed to the limiting plate.
[0009] Optionally, a groove is opened on the inner side of the limiting plate, a second limiting base plate is movably connected in the groove, a second spring is fixed to the top end of the second limiting base plate, and the top end of the second spring is fixed to the inner wall of the groove.
[0010] Optionally, an electric push rod is fixed to the outer side of the limiting plate, and one end of the electric push rod is fixed to the inner wall of the slot.
[0011] The present invention has the following beneficial effects:
[0012] 1. The device for improving the measurement stability of the desktop hardness tester rotates the lifting handle to drive the transmission gear to rotate, thereby adjusting the height of the storage table to be consistent with the flat workbench, and then limiting the test sample on the storage table to avoid unstable factors such as the head tilting when the hardness tester tests the test sample, the inability to place it stably, or the inability to detect the required test area, thereby improving the stability of the object being measured when the desktop hardness tester is measuring and improving the accuracy of the measurement data.
[0013] 2. The device for improving the measurement stability of a desktop hardness tester enables the first limiting substrate and the second limiting substrate to contact the test sample under the push of an electric push rod, and under the action of the elastic force of the first spring and the second spring, the first limiting substrate and the second limiting substrate can adaptively limit the test sample, thereby being able to limit the test sample while adapting to different test samples, thereby making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the present invention;
[0015] Figure 2 It is a structural schematic diagram of the base connection of the present invention;
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the base connection of the present invention;
[0017] Figure 4 It is a structural schematic diagram of the linkage gear connection of the present invention;
[0018] Figure 5 It is a schematic diagram of the structure of the connection of the limiting plate of the present invention;
[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the limiting plate connection of the present invention.
[0020] In the figure: 1. hardness tester; 2. base; 3. intermediate conduction plate; 4. storage table; 5. lifting handle; 6. first lifting threaded column; 7. second lifting threaded column; 8. limiting plate; 9. first rotating gear; 10. second rotating gear; 11. linkage gear; 12. conduction gear; 13. first limiting rod; 14. electric push rod; 15. second limiting rod; second limiting rod; 16. first limiting substrate; 17. first spring; 18. second limiting substrate; 19. second spring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] See also Figures 1 to 4A device for improving the measurement stability of a desktop hardness tester comprises a hardness tester 1, a flat workbench is arranged on the hardness tester 1, a test sample is placed on the flat workbench for testing, a base 2 is placed on one side of the hardness tester 1, and two second lifting threaded columns 7 are fixed on the top of the base 2, and an intermediate conductive plate 3 is movably connected to the tops of the two second lifting threaded columns 7, and the intermediate conductive plate 3 can be moved along a fixed track under the restriction of the two second lifting threaded columns 7, so that the intermediate conductive plate 3 can be lifted and lowered, and two first lifting threaded columns 6 are movably connected to the top of the intermediate conductive plate 3, and the two first lifting threaded columns 6 are movably connected to the top of the intermediate conductive plate 3 under the restriction of the intermediate conductive plate 3. The threaded column 6 can move along a fixed track, so that the first lifting threaded column 6 can be lifted and lowered, and a storage table 4 is fixed to the top ends of the two first lifting threaded columns 6. Driven by the first lifting threaded column 6, the storage table 4 can be lifted and lowered, thereby adjusting the height of the storage table 4. At the same time, the first lifting threaded column 6 and the second lifting threaded column 7 both pass through the intermediate conduction plate 3, and an S-shaped lifting handle 5 is movably sleeved on one side of the intermediate conduction plate 3. Under the limitation of the intermediate conduction plate 3, the lifting handle 5 can be rotated at a fixed position on the intermediate conduction plate 3. Driven by the rotation of the lifting handle 5, the storage table 4 can be lifted and lowered to adjust the height.
[0023] See also Figures 1 to 4 One end of the lifting handle 5 extends into the interior of the intermediate conductive plate 3 and a conductive gear 12 is fixed thereon. Driven by the lifting handle 5, the conductive gear 12 can rotate, and two first rotating gears 9 and two second rotating gears 10 are movably sleeved inside the intermediate conductive plate 3. Under the limitation of the intermediate conductive plate 3, the first rotating gear 9 and the second rotating gear 10 can rotate at a fixed position on the intermediate conductive plate 3. The bottom side of the conductive gear 12 is engaged with the top of one of the first rotating gears 9, so that the conductive gear 12 can drive the first rotating gear 9 to rotate.
[0024] See also Figures 1 to 4The middle of the first rotating gear 9 is threadedly mounted on the first lifting thread column 6. Under the rotation drive of the first rotating gear 9, the first lifting thread column 6 can be lifted and lowered. The middle of the second rotating gear 10 is threadedly mounted on the second lifting thread column 7. Under the rotation drive of the second rotating gear 10, the intermediate conducting plate 3 can be lifted and lowered relative to the second lifting thread column 7. The first rotating gear 9 and the second rotating gear 10 are meshed, so that they can transmit to each other, so that the first rotating gear 9 and the second rotating gear 10 can rotate. At the same time, a linkage gear 11 is meshed between the two second rotating gears 10. Through the transmission of the linkage gear 11, the second rotating gears 10 can be transmitted. The linkage gear 11 is movably connected to the inner wall of the intermediate conducting plate 3. Under the limitation of the intermediate conducting plate 3, the linkage gear 11 and the second rotating gear 10 can be rotated at a fixed position on the intermediate conducting plate 3.
[0025] See also Figures 1 to 3 and Figures 5 and 6 Four slots are provided on the top of the storage table 4, and two symmetrical first limiting rods 13 are fixed on the inner walls of the slots. An L-shaped limiting plate 8 is movably connected between the two first limiting rods 13. Under the limitation of the two limiting plates 8, the limiting plate 8 can move along a fixed track, and two sliding grooves are provided on the inner side of the limiting plate 8.
[0026] See also Figures 1 to 3 and Figures 5 and 6 A second limiting rod 15 is fixed in the slide groove, and a first limiting base plate 16 is movably connected between the two second limiting rods 15. Under the limitation of the two second limiting rods 15, the first limiting base plate 16 can move along a fixed track. A first spring 17 is fixed on one side of the first limiting base plate 16, and one end of the first spring 17 is fixed to the limiting plate 8. Under the action of the elastic force of the first spring 17, the first limiting base plate 16 can contact the detection sample, thereby limiting the detection sample.
[0027] See also Figures 1 to 3 and Figures 5 and 6 A groove is provided on the inner side of the limiting plate 8, and a second limiting substrate 18 is movably connected in the groove. Under the limitation of the groove, the second limiting substrate 18 can move along a fixed track. A second spring 19 is fixed to the top of the second limiting substrate 18, and the top of the second spring 19 is fixed to the inner wall of the groove. Under the action of the elastic force of the second spring 19, the second limiting substrate 18 can contact the detection sample to limit the detection sample.
[0028] See also Figures 1 to 3 and Figures 5 and 6An electric push rod 14 is fixed to the outside of the limiting plate 8, and one end of the electric push rod 14 is fixed to the inner wall of the slot. Under the push of the electric push rod 14, the limiting plate 8 can move, thereby limiting the test sample. The electric push rod 14 is a prior art and will not be described in detail here.
[0029] In summary, when the device for improving the measurement stability of a desktop hardness tester is used, the test sample is placed on a flat workbench, and then the lifting handle 5 is rotated. Driven by the lifting handle 5, the transmission gear 12 is rotated. Under the transmission of the transmission gear 12, the two first rotating gears 9 and the two second rotating gears 10 can all rotate in the same direction. Under the rotation of the first rotating gear 9 and the second rotating gear 10, the intermediate conducting plate 3 can move relative to the first lifting threaded column 6 and the second lifting threaded column 7, so as to adjust the height of the storage table 4. Then, the extended end of the test sample is placed on the storage table 4. Under the push of the electric push rod 14, the limiting plate 8 is moved, and then the first limiting substrate 16 is pushed to contact the two sides of the test sample, and its first spring 17 is compressed, and the second limiting substrate 18 is in contact with the top of the test sample, and its second spring 19 is compressed. Under the action of the elastic force of the first spring 17 and the second spring 19, the first limiting substrate 16 and the second limiting substrate 18 can limit the test sample, so that the test sample can be stably tested.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for improving the measurement stability of a desktop hardness tester, comprising a hardness tester (1), on which a flat workbench is arranged, characterized in that: A base (2) is placed on one side of the hardness tester (1), and two second lifting threaded columns (7) are fixed on the top of the base (2), and an intermediate conductive plate (3) is movably connected to the top of the two second lifting threaded columns (7), and two first lifting threaded columns (6) are movably connected to the top of the intermediate conductive plate (3), and a storage platform (4) is fixed to the top of the two first lifting threaded columns (6), and the first lifting threaded columns (6) and the second lifting threaded columns (7) both pass through the intermediate conductive plate (3), and an S-shaped lifting handle (5) is movably sleeved on one side of the intermediate conductive plate (3).
2. The device for improving the measurement stability of a desktop hardness tester according to claim 1, characterized in that: One end of the lifting handle (5) extends into the interior of the intermediate conducting plate (3) and is fixed with a conducting gear (12), and two first rotating gears (9) and two second rotating gears (10) are movably sleeved inside the intermediate conducting plate (3), and the bottom side of the conducting gear (12) is engaged with the top of one of the first rotating gears (9).
3. A device for improving the measurement stability of a desktop hardness tester according to claim 2, characterized in that: The middle of the first rotating gear (9) is threadedly mounted on the first lifting threaded column (6), the middle of the second rotating gear (10) is threadedly mounted on the second lifting threaded column (7), and the first rotating gear (9) and the second rotating gear (10) are meshed with each other. At the same time, a linkage gear (11) is meshed between the two second rotating gears (10), and the linkage gear (11) is movably sleeved with the inner wall of the middle conducting plate (3).
4. The device for improving the measurement stability of a desktop hardness tester according to claim 1, characterized in that: The top of the storage platform (4) is provided with four notches, and two symmetrical first limiting rods (13) are fixed on the inner walls of the notches. An L-shaped limiting plate (8) is movably connected between the two first limiting rods (13), and two sliding grooves are provided on the inner side of the limiting plate (8).
5. The device for improving the measurement stability of a desktop hardness tester according to claim 4, characterized in that: A second limiting rod (15) is fixed in the slide groove, a first limiting base plate (16) is movably connected between the two second limiting rods (15), a first spring (17) is fixed on one side of the first limiting base plate (16), and one end of the first spring (17) is fixed to the limiting plate (8).
6. The device for improving the measurement stability of a desktop hardness tester according to claim 5, characterized in that: A groove is provided on the inner side of the limiting plate (8), and a second limiting base plate (18) is movably connected in the groove. A second spring (19) is fixed to the top end of the second limiting base plate (18), and the top end of the second spring (19) is fixed to the inner wall of the groove.
7. The device for improving the measurement stability of a desktop hardness tester according to claim 6, characterized in that: An electric push rod (14) is fixed to the outer side of the limiting plate (8), and one end of the electric push rod (14) is fixed to the inner wall of the slot.