Weight anti-swing mechanism and dead weight type Rockwell hardness machine thereof
By designing a weight anti-swing mechanism in a static heavy Rockwell hardness machine, using clamping limit and air-floating flat plate technology, the measurement error problem caused by spindle shaking is solved, and more accurate material hardness measurement is achieved.
Patent Information
- Application Number
- CN202411886417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-21
AI Technical Summary
When the existing static heavy Rockwell hardness machine is loaded with test force, the spindle is easily shaken, resulting in inaccurate measurement results and cannot truly reflect the hardness characteristics of the material.
A weight anti-swing mechanism is designed to fix the spindle by double clamping limits, using air-floating plates and screw components to reduce spindle swing and reduce equipment friction by adjusting air pressure.
It effectively reduces measurement errors caused by spindle swing, improves the technical indicators of the static heavy Rockwell hardness machine, and ensures the accuracy of hardness measurement.
Smart Images
Figure CN119666536A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of a deadweight Rockwell hardness tester, and in particular to a weight anti-sway mechanism and a deadweight Rockwell hardness tester thereof. Background Art
[0002] In the manufacturing industry, the design requirements of each component of the product have strict regulations on the hardness of the material. The static weight Rockwell hardness tester can accurately measure the hardness of the material. In order to determine whether the material hardness of the production parts meets the design requirements, it is necessary to use the static weight Rockwell hardness tester to test the material hardness. At the same time, the static weight Rockwell hardness tester can also ensure the acceptance of the product and ensure the quality of the final product.
[0003] The bottom of the main shaft of the current static weight Rockwell hardness tester adopts a double-sided ball bearing anti-sway mechanism design. When measuring in this way, the up and down movement of the weight will cause the main shaft to swing back and forth, causing the indentation to be eccentric when the main test force is loaded. The indentation depth and other related data measured in this way will deviate from the accurate data under normal circumstances. This deviation will eventually lead to inaccurate hardness measurement and fail to truly reflect the hardness characteristics of the test sample, thereby affecting the accurate judgment of the material hardness and causing inaccurate measurement.
[0004] Therefore, in view of the fact that the spindle is prone to shaking when the test force is loaded on the existing static weight Rockwell hardness tester, which affects the measurement results, a weight anti-sway mechanism and its static weight Rockwell hardness tester can be designed. The double clamping and limiting method is simple and quick to operate, which can reduce the measurement error caused by the swing of the spindle. The air gap between the air floating plate and the outer shell, and the air gap between the air floating plate and the spindle are controlled to reduce the friction of the equipment, thereby effectively improving the technical indicators of the static weight Rockwell hardness tester. Summary of the invention
[0005] In order to overcome the problem that most static weight Rockwell hardness testers move the weight up and down during measurement, the spindle will swing back and forth, causing the indentation to be eccentric when the main test force is loaded, and it cannot truly reflect the hardness characteristics of the test sample, thus affecting the accurate judgment of the material hardness and causing inaccurate measurement.
[0006] The technical scheme of the present invention is: a weight anti-sway mechanism and a static weight Rockwell hardness tester thereof, comprising a spindle, a first shell, a first air-floating plate, a first screw, a first fixing assembly, a second shell, a mounting clamp, a second screw, a mounting assembly, a second air-floating plate, a third screw, an air source hole and a second fixing assembly; a first shell is arranged at one end of the spindle, a first air-floating plate is arranged on the inner side of the first shell, three groups of first air-floating plates are arranged, and the first air-floating plates are evenly spaced and arranged on the inner side of the first shell, a first screw is arranged on one side of the first shell, a first screw thread runs through the first shell, one end of the first screw is threadedly connected to the first air-floating plate, and one side of the first shell is arranged A first fixing component is provided, a second shell is provided on the top of the first shell, a mounting card plate is provided on the bottom of the second shell, three groups of mounting card plates are provided, a second screw is provided on the outer side of the first shell, one end of the second screw is threadedly connected with the mounting card plate, a mounting component is provided on one side of the mounting card plate, a second air-floating plate is provided on the inner side of the second shell, the second air-floating plate corresponds to the position of the first air-floating plate, a third screw is provided on one side of the second shell, the third screw thread runs through the second shell, one end of the third screw is threadedly connected with the second air-floating plate, air source holes are provided on one side of the first air-floating plate and the second air-floating plate, and a second fixing component is provided on the outer side of the second shell.
[0007] Preferably, the test force is transmitted by setting the spindle, the position of the first air-floating plate is fixed by the first shell, the first screw is locked by the first fixing assembly, the first air-floating plate is fixed by the first screw, the first air-floating plate is fixed at a specified position inside the first shell, so that the first air-floating plate limits the spindle, the second shell is stacked on top of the first shell, the combination position of the second shell and the first shell is clarified by the installation assembly, the installation card is inserted into the inside of the first shell, and the second screw is rotated to lock the position of the installation card, so as to fix the second shell and the first shell, the position of the second air-floating plate is fixed by the second shell, the third screw is locked by the second fixing assembly, the second air-floating plate is fixed by the third screw, the second air-floating plate is fixed at a specified position inside the second shell, the spindle is further limited by the second air-floating plate, the air source hole is connected to the air source, and the air pressure between the spindle and the first air-floating plate and the second air-floating plate is flexibly adjusted, so as to achieve the effect of non-rotation and non-offset up and down movement of the spindle, reduce the measurement error caused by the swing of the spindle, and improve the technical indicators of the static weight Rockwell hardness tester.
[0008] Preferably, the first shell is a hollow column, the inner wall of the first shell is hexagonal, the first air-floating plate is centrally arranged on the inner side of the first shell, one side of the first air-floating plate abuts against the inner wall of the first shell, and the other side of the first air-floating plate abuts against the outer side of the main shaft, the first screw is a bidirectional screw, the inner wall of the second shell is hexagonal, the second air-floating plate is centrally arranged on the inner side of the second shell, one side of the second air-floating plate abuts against the inner wall of the second shell, and the other side of the second air-floating plate abuts against the outer side of the main shaft, the second screw is a bidirectional screw, the air source hole is L-shaped, the inner wall of the first shell includes a first inner wall, a second inner wall, a third inner wall, a fourth inner wall, a fifth inner wall and a sixth inner wall, and the first inner wall, the second inner wall, the third inner wall, the fourth inner wall, the fifth inner wall and The sixth inner wall is connected in sequence to form a hexagonal area, and the three groups of first air-floating flat plates are respectively arranged on the first inner wall, the third inner wall and the fifth inner wall. The inner wall of the second outer shell includes the seventh inner wall, the eighth inner wall, the ninth inner wall, the tenth inner wall, the eleventh inner wall and the twelfth inner wall, and the seventh inner wall, the eighth inner wall, the ninth inner wall, the tenth inner wall, the eleventh inner wall and the twelfth inner wall are connected in sequence to form a hexagonal area, and the three groups of second air-floating flat plates are respectively arranged on the seventh inner wall, the ninth inner wall and the eleventh inner wall, wherein the first inner wall corresponds to the seventh inner wall, the second inner wall corresponds to the eighth inner wall, the third inner wall corresponds to the ninth inner wall, the fourth inner wall corresponds to the tenth inner wall, the fifth inner wall corresponds to the eleventh inner wall, and the sixth inner wall corresponds to the twelfth inner wall.
[0009] Preferably, the first fixing component includes a first screw hole and a first threaded hole; a first screw hole is opened on one side of the first shell, and multiple groups of first screw holes are opened. The first screw rod is arranged on the inner side of the first screw hole, and a first threaded hole is opened on one side of the first air floating plate, and the first threaded hole corresponds to the position of the first screw hole.
[0010] Preferably, the first fixing component includes a first connecting nut and a first adjusting nut; a first connecting nut is provided at one end of the first screw, the first connecting nut and the first screw are threadedly connected to each other, the first connecting nut is provided on the outer wall of the first shell, and a first adjusting nut is provided on one side of the first connecting nut, and the first adjusting nut and the first screw are threadedly connected to each other.
[0011] Preferably, the mounting assembly includes a mounting slot, a second screw hole and a second threaded hole; a mounting slot is opened on the inner side of the first shell, and three groups of mounting slots are evenly opened, the mounting slots and the first screw holes are staggered, the mounting card plate and the mounting slots are interlocked, a second screw hole is opened on one side of the first shell, the second screw hole and the mounting slot are interconnected, the second screw rod is arranged on the inner side of the second screw hole, and a second threaded hole is opened on one side of the mounting card plate.
[0012] Preferably, the mounting assembly also includes a second connecting nut and a second adjusting nut; a second connecting nut is provided at one end of the second screw, the second connecting nut and the second screw are threadedly connected to each other, the second connecting nut is provided on the outer wall of the first outer shell, and a second adjusting nut is provided on one side of the second connecting nut, and the second adjusting nut and the second screw are threadedly connected to each other.
[0013] Preferably, the second fixing assembly includes a third screw hole and a third threaded hole; a third screw hole is opened on one side of the second outer shell, and multiple groups of third screw holes are opened. The third screw rod is arranged on the inner side of the third screw hole, and a third threaded hole is opened on one side of the second air floating plate, and the third threaded hole corresponds to the position of the third screw hole.
[0014] Preferably, the second fixing assembly also includes a third connecting nut and a third adjusting nut; a third connecting nut is provided at one end of the third screw, the third connecting nut and the third screw are threadedly connected to each other, the third connecting nut is provided on the outer wall of the second outer shell, and a third adjusting nut is provided on one side of the third connecting nut, and the third adjusting nut and the third screw are threadedly connected to each other.
[0015] A static weight Rockwell hardness tester includes a weight anti-sway mechanism as described above, and also includes: a hardness tester body, a sample table, a test pressure head and a measuring component; the sample table is arranged on one side of the hardness tester body, and the test pressure head is arranged on one side of the hardness tester body, and the test pressure head is arranged above the sample table.
[0016] Preferably, the material to be tested is placed on the sample table, the measuring component is used to control the test pressure head to contact the material surface, and the material hardness test operation is performed through the hardness machine body, thereby achieving the effect of convenient and stable material hardness testing operations.
[0017] Preferably, the measuring component includes a weight loading mechanism, a weight body, a loading lever and a lifting mechanism; a weight loading mechanism is provided on one side of the hardness machine body, a weight body is provided on one side of the weight loading mechanism, multiple groups of weight bodies are provided, a loading lever is provided above the weight loading mechanism, and a lifting mechanism is provided on one side of the test pressure head.
[0018] Beneficial effects of the present invention: 1. When installing the air-floating plate, use the first screw to fix the first air-floating plate, fix the first air-floating plate at a designated position inside the first shell, stack the second shell on top of the first shell, insert the mounting card into the inside of the first shell, turn the second screw to lock the mounting card position, thereby fixing the second shell and the first shell, fix the second air-floating plate by the third screw, and fix the second air-floating plate at a designated position inside the second shell, thereby achieving the effect of convenient disassembly and assembly of the air-floating plate.
[0019] 2. When limiting the spindle position, the spindle is set to transmit the test force, so that the first air-floating plate limits the spindle, and the second air-floating plate is used to further limit the spindle. The air source hole is connected to the air source, and the air pressure between the spindle and the first air-floating plate and the second air-floating plate is flexibly adjusted to solve the problem that the up and down movement of the weight will cause the spindle to swing back and forth in most static weight Rockwell hardness testers, resulting in eccentric indentation when the main test force is loaded, thereby improving the technical indicators of static weight Rockwell hardness testers. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Shown is a three-dimensional structural schematic diagram of a weight anti-sway mechanism of the present invention; Figure 2 Shown is a schematic diagram of the three-dimensional structure of an installation component of a weight anti-sway mechanism of the present invention; Figure 3 Shown is a schematic diagram of a three-dimensional structure of a first shell section of a weight anti-sway mechanism of the present invention; Figure 4 Shown is a schematic diagram of the three-dimensional structure of a second shell of a weight anti-sway mechanism of the present invention; Figure 5 Shown is a schematic diagram of a cross-sectional three-dimensional structure of a second shell of a weight anti-sway mechanism of the present invention; Figure 6 Shown is a three-dimensional structural schematic diagram of a static weight Rockwell hardness tester of the present invention. Explanation of the reference numerals: 1. spindle; 2. first shell; 3. first air-floating plate; 301. first screw rod; 302. first screw hole; 303. first threaded hole; 304. first connecting nut; 305. first adjusting nut; 4. second shell; 401. mounting plate; 402. second screw rod; 403. mounting slot; 404. second screw hole; 405. second threaded hole; 406. second connecting nut; 407. second adjusting nut; 5. second air-floating plate; 501. third screw rod; 502. air source hole; 503. third screw hole; 504. third threaded hole; 505. third connecting nut; 506. third adjusting nut; 7. hardness tester body; 701. sample table; 702. test pressure head; 801. weight loading mechanism; 802. weight body; 803. loading lever; 804. lifting mechanism. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] See also Figure 1-Figure 5, the present invention provides an embodiment: a weight anti-sway mechanism, including a main shaft 1, a first housing 2, a first air-floating plate 3, a first screw 301, a first fixing assembly, a second housing 4, a mounting card 401, a second screw 402, a mounting assembly, a second air-floating plate 5, a third screw 501, an air source hole 502 and a second fixing assembly;A first shell 2 is provided at one end of the main shaft 1. The first shell 2 is a hollow column. The inner wall of the first shell 2 is hexagonal. A first air-floating plate 3 is provided on the inner side of the first shell 2. Three groups of the first air-floating plates 3 are provided. The first air-floating plates 3 are evenly spaced on the inner side of the first shell 2. The first air-floating plates 3 are centrally arranged on the inner side of the first shell 2. The inner wall of the first shell 2 includes a first inner wall, a second inner wall, a third inner wall, a fourth inner wall, a fifth inner wall and a sixth inner wall. The first inner wall, the second inner wall, the third inner wall, the fourth inner wall, the fifth inner wall and the sixth inner wall are connected in sequence to enclose a hexagonal area. The three groups of first air-floating plates 3 are respectively arranged on the first inner wall, the third inner wall and the fifth inner wall. One side of the floating plate 3 is in contact with the inner wall of the first shell 2, and the other side of the first air-floating plate 3 is in contact with the outer side of the main shaft 1. A first screw 301 is provided on one side of the first shell 2, and the first screw 301 is threadedly penetrated through the first shell 2. One end of the first screw 301 is threadedly connected with the first air-floating plate 3. The first screw 301 is a bidirectional screw. A first fixing component is provided on one side of the first shell 2. A second shell 4 is provided on the top of the first shell 2. The inner wall of the second shell 4 is hexagonal. A mounting card 401 is provided on the bottom surface of the second shell 4. The mounting card 401 is provided in three groups. A second screw 402 is provided on the outer side of the first shell 2. The second screw 402 is a bidirectional screw. 2 is threadedly connected to the mounting card plate 401, and a mounting assembly is arranged on one side of the mounting card plate 401. A second air-floating plate 5 is arranged on the inner side of the second shell 4, and the second air-floating plate 5 corresponds to the first air-floating plate 3. The second air-floating plate 5 is centrally arranged on the inner side of the second shell 4. The inner wall of the second shell 4 includes a seventh inner wall, an eighth inner wall, a ninth inner wall, a tenth inner wall, an eleventh inner wall and a twelfth inner wall, and the seventh inner wall, the eighth inner wall, the ninth inner wall, the tenth inner wall, the eleventh inner wall and the twelfth inner wall are connected in sequence to form a hexagonal area. Three groups of second air-floating plates 5 are respectively arranged on the seventh inner wall, the ninth inner wall and the eleventh inner wall, wherein the first inner wall corresponds to the seventh inner wall, the tenth inner wall, the eleventh inner wall and the twelfth inner wall are connected in sequence to form a hexagonal area. The second inner wall corresponds to the eighth inner wall, the third inner wall corresponds to the ninth inner wall, the fourth inner wall corresponds to the tenth inner wall, the fifth inner wall corresponds to the eleventh inner wall, the sixth inner wall corresponds to the twelfth inner wall, one side of the second air-floating plate 5 abuts against the inner wall of the second shell 4, and the other side of the second air-floating plate 5 abuts against the outer side of the main shaft 1. A third screw 501 is provided on one side of the second shell 4, and the third screw 501 is threadedly penetrated through the second shell 4. One end of the third screw 501 is threadedly connected with the second air-floating plate 5. An air source hole 502 is provided on one side of the first air-floating plate 3 and the second air-floating plate 5. The air source hole 502 is L-shaped, and a second fixing component is provided on the outer side of the second shell 4. ;
[0023] See also Figure 1-Figure 5In the present embodiment, the first fixing assembly includes a first screw hole 302, a first threaded hole 303, a first connecting nut 304 and a first adjusting nut 305; a first screw hole 302 is provided on one side of the first housing 2, and the first screw hole 302 is provided with multiple groups, a first screw rod 301 is arranged on the inner side of the first screw hole 302, a first threaded hole 303 is provided on one side of the first air floating plate 3, and the first threaded hole 303 corresponds to the position of the first screw hole 302, a first connecting nut 304 is provided on one end of the first screw rod 301, the first connecting nut 304 is threadedly connected with the first screw 301, the first connecting nut 304 is provided on the outer wall of the first housing 2, a first adjusting nut 305 is provided on one side of the first connecting nut 304, and the first adjusting The joint nut 305 is threadedly connected with the first screw rod 301, and the first screw rod 301 is rotated into the first housing 2 through the first screw hole 302, and one end of the first screw rod 301 is rotated into the first threaded hole 303, and the first connecting nut 304 is rotated around the first screw rod 301, so that the first connecting nut 304 abuts against the outer wall of the first housing 2, and then the first adjusting nut 305 is rotated into the first screw rod 301, and the first adjusting nut 305 is rotated to drive the first screw 301 to rotate, so as to adjust the position of the first air-floating plate 3, so that the first air-floating plate 3 abuts against the main shaft 1, and the main shaft 1 is limited; the installation component includes an installation slot 403, a second screw hole 404, a second threaded hole 405, a second connecting nut 406 and a second adjusting nut 407; the first housing 2 A mounting slot 403 is provided on the inner side, and three groups of mounting slots 403 are evenly provided. The mounting slots 403 are staggered with the first screw holes 302, and the mounting card plate 401 is interlocked with the mounting slots 403. A second screw hole 404 is provided on one side of the first shell 2, and the second screw hole 404 and the mounting slot 403 are mutually connected. The second screw rod 402 is arranged on the inner side of the second screw hole 404, and a second threaded hole 405 is provided on one side of the mounting card plate 401. A second connecting nut 406 is provided at one end of the second screw rod 402, and the second connecting nut 406 is threadedly connected with the second screw 402. The second connecting nut 406 is provided on the outer wall of the first shell 2, and a second adjusting nut 407 is provided on one side of the second connecting nut 406. The adjusting nut 407 is threadedly connected with the second screw rod 402. The installation position of the mounting card plate 401 is clearly defined through the installation card slot 403 to ensure that the first shell 2 and the second shell 4 are in corresponding combination. The second screw rod 402 is rotated into the second screw hole 404 to define the installation position of the second screw rod 402. The second connecting nut 406 is rotated into one end of the second screw rod 402. The second connecting nut 406 is rotated to make it abut against the outer wall of the first shell 2. The second adjusting nut 407 is then rotated into the second screw rod 402. The second adjusting nut 407 is rotated to drive the second screw rod 402 to rotate synchronously. The second screw 402 is rotated into the second threaded hole 405, and the mounting card plate 401 is connected and fixed to the first shell 2, so as to stably combine and connect the first shell 2 and the second shell 4. The second fixing assembly includes a third screw hole 503, a third threaded hole 504, a third connecting nut 505 and a third adjusting nut 506; a third screw hole 503 is provided on one side of the second shell 4, and the third screw hole 503 is provided with multiple groups. The third screw rod 501 is arranged on the inner side of the third screw hole 503, and a third threaded hole 504 is provided on one side of the second air-floating plate 5, and the third threaded hole 504 corresponds to the position of the third screw hole 503. A third connecting nut 505 is provided at one end of the third screw rod 501, and the third connecting nut 505 is threadedly connected to the third screw 501. The third connecting nut 505 is arranged on the outer wall of the second shell 4, and one side of the third connecting nut 505 A third adjusting nut 506 is provided, and the third adjusting nut 506 and the third screw rod 501 are threadedly connected with each other. The third screw rod 501 is rotated into the second shell 4 through the third screw hole 503, and the third connecting nut 505 is rotated into the third screw rod 501. The third connecting nut 505 is rotated to make it abut against the outer wall of the second shell 4. The third screw 501 is rotated into the third threaded hole 504 to fix the second air-floating plate 5 on the inner side of the cavity of the second shell 4. The third adjusting nut 506 is then rotated into the third screw rod 501. The third adjusting nut 506 is rotated to drive the third screw rod 501 to rotate synchronously, so that the second air-floating plate 5 abuts against the main shaft 1, and the main shaft 1 is further limited.
[0024] See also Figure 6 In this embodiment, a static weight Rockwell hardness tester includes a weight anti-sway mechanism as described above, and also includes a hardness tester body 7, a sample table 701, a test indenter 702 and a measuring assembly; a sample table 701 is provided on one side of the hardness tester body 7, a test indenter 702 is provided on one side of the hardness tester body 7, and the test indenter 702 is provided above the sample table 701. The material to be tested is placed on the sample table 701, and the test indenter 702 is controlled by the measuring assembly to contact the material surface, and the material hardness test operation is performed through the hardness tester body 7, thereby realizing convenient and stable material hardness test operation; the measuring assembly includes a weight loading mechanism 801, a weight body 8 02. Loading lever 803 and lifting mechanism 804; A weight loading mechanism 801 is arranged on one side of the hardness machine body 7, and a weight body 802 is arranged on one side of the weight loading mechanism 801. The weight body 802 is arranged in multiple groups. A loading lever 803 is arranged above the weight loading mechanism 801, and a lifting mechanism 804 is arranged on one side of the test pressure head 702. The test force is adjusted by controlling the quality and quantity of the weight body 802. The test force is generated by the weight loading mechanism 801, and the gravity of the weight body 802 is transmitted through the loading lever 803. The height of the test pressure head 702 is adjusted by the lifting mechanism 804, so that the test pressure head 702 accurately contacts the material sample to perform the test operation.
[0025] When fixing the position of the main shaft 1, the first air-floating plate 3 is sequentially placed into the first housing 2, the first threaded hole 303 is aligned with the first threaded hole 302, the first screw rod 301 is rotated into the first threaded hole 302 and the first threaded hole 303, the first connecting nut 304 is rotated into the first screw rod 301, the first connecting nut 304 is rotated to make it abut against the outside of the first housing 2, the first air-floating plate 3 is fixed in the first housing 2, and the first adjusting nut 305 is then rotated into the first screw rod 301, the first adjusting nut 305 is rotated to drive the first screw rod 301 to rotate synchronously, so that the first air-floating plate 3 abuts against the main shaft 1; Subsequently, the mounting card plate 401 is inserted into the mounting card slot 403, and the second screw hole 404 is aligned with the second threaded hole 405, so that the second housing 4 is stacked on the first housing 2, and the second screw rod 402 is rotated into the second screw hole 404 and the second threaded hole 405, and then the second connecting nut 406 is rotated into the second screw rod 402, and the second screw rod 402 is rotated to make it abut against the outer side of the first housing 2, and then the second adjusting nut 407 is rotated into the second screw rod 402, and the second adjusting nut 407 is rotated to drive the second screw rod 402 to rotate synchronously, so as to lock the positions of the first housing 2 and the second housing 4; Finally, the second air-floating plate 5 is sequentially placed into the cavity of the second housing 4, the third threaded hole 504 is aligned with the third threaded hole 503, the third screw 501 is screwed into the third threaded hole 503 and the third threaded hole 504, the third connecting nut 505 is screwed into the third screw 501, the third connecting nut 505 is rotated to make it abut against the outside of the second housing 4, the second air-floating plate 5 is fixed in the second housing 4, and the third adjusting nut 506 is screwed into the third screw 501, the third adjusting nut 506 is rotated to drive the third screw 501 to rotate synchronously, so that the second air-floating plate 5 further abuts against the main shaft 1; During the test, the material sample to be tested is placed on the sample table 701, and the weight body 802 on the weight loading mechanism 801 is adjusted according to the test force requirement. The gravity of the weight body 802 is transmitted through the loading lever 803, so that the air source hole 502 is connected to the air source, and the air source ventilates the first air-floating plate 3 and the second air-floating plate 5 through the air source hole 502. At this time, the air pressure between the air-floating plate and the side of the main shaft 1 is greater than the pressure between the air-floating plate and the shell. A gap appears between the first air-floating plate 3, the second air-floating plate 5 and the main shaft 1, driving the main shaft 1 to rise and fall stably. The height of the test pressure head 702 is adjusted by using the lifting mechanism 804, so that the test pressure head 702 accurately contacts the material sample, and the material hardness test operation is performed using the hardness machine body 7.
[0026] Through the above steps, the material to be tested is placed on the sample table 701, and the test pressure head 702 is used to contact the surface of the material, so that the hardness machine body 7 performs material hardness testing operations, and the test force is transmitted by setting the main shaft 1, and the position of the first air-floating plate 3 is fixed by the first shell 2, and the first screw 301 is locked by the first fixing component, and the first air-floating plate 3 is fixed by the first screw 301, and the first air-floating plate 3 is fixed at a specified position inside the first shell 2, so that the first air-floating plate 3 limits the main shaft 1, and the second shell 4 is stacked on the top of the first shell 2, and the combination position of the second shell 4 and the first shell 2 is clarified by the installation component, and the installation card plate 401 is inserted into the first On the inner side of the shell 2, the second screw 402 is rotated to lock the position of the mounting card 401, thereby fixing the second shell 4 and the first shell 2, fixing the position of the second air-floating plate 5 through the second shell 4, locking the third screw 501 by the second fixing assembly, fixing the second air-floating plate 5 by the third screw 501, fixing the second air-floating plate 5 at the specified position inside the second shell 4, further limiting the spindle 1 by the second air-floating plate 5, connecting the air source hole 502 with the air source, and flexibly adjusting the air pressure between the spindle 1 and the first air-floating plate 3 and the second air-floating plate 5, so that the spindle 1 can move up and down without rotation and deviation, thereby reducing the measurement error caused by the swing of the spindle 1.
[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.
Claims
1. A weight anti-sway mechanism, comprising a main shaft (1); characterized in that: The invention also comprises a first shell (2), a first air-floating plate (3), a first screw (301), a first fixing assembly, a second shell (4), a mounting plate (401), a second screw (402), a mounting assembly, a second air-floating plate (5), a third screw (501), an air source hole (502) and a second fixing assembly; the first shell (2) is arranged at one end of the main shaft (1); the first air-floating plate (3) is arranged on the inner side of the first shell (2); three groups of the first air-floating plates (3) are arranged at even intervals on the inner side of the first shell (2); a first screw (301) is arranged on one side of the first shell (2); the first screw (301) is threadedly penetrated through the first shell (2); one end of the first screw (301) is threadedly connected to the first air-floating plate (3); a first fixing assembly is arranged on one side of the first shell (2); the top of the first shell (2) A second shell (4) is provided, a mounting card plate (401) is provided on the bottom surface of the second shell (4), and three groups of mounting card plates (401) are provided. A second screw rod (402) is provided on the outer side of the first shell (2), one end of the second screw rod (402) is threadedly connected to the mounting card plate (401), and a mounting assembly is provided on one side of the mounting card plate (401). A second air-floating plate (5) is provided on the inner side of the second shell (4), and the second air-floating plate (5) corresponds to the position of the first air-floating plate (3). A third screw rod (501) is provided on one side of the second shell (4), and the third screw rod (501) is threadedly passed through the second shell (4), and one end of the third screw rod (501) is threadedly connected to the second air-floating plate (5). One side of the first air-floating plate (3) and the second air-floating plate (5) is provided with an air source hole (502), and a second fixing assembly is provided on the outer side of the second shell (4).
2. A weight anti-sway mechanism according to claim 1, characterized in that: The first shell (2) is in the shape of a hollow column, the inner wall of the first shell (2) is in the shape of a hexagon, the first air-floating plate (3) is centrally arranged on the inner side of the first shell (2), one side of the first air-floating plate (3) abuts against the inner wall of the first shell (2), and the other side of the first air-floating plate (3) abuts against the outer side of the main shaft (1), the first screw (301) is a bidirectional screw, the inner wall of the second shell (4) is in the shape of a hexagon, the second air-floating plate (5) is centrally arranged on the inner side of the second shell (4), one side of the second air-floating plate (5) abuts against the inner wall of the second shell (4), and the other side of the second air-floating plate (5) abuts against the outer side of the main shaft (1), the second screw (402) is a bidirectional screw, and the air source hole (502) is arranged in an L shape.
3. A weight anti-sway mechanism according to claim 2, characterized in that: The first fixing assembly comprises a first screw hole (302) and a first threaded hole (303); a first screw hole (302) is provided on one side of the first housing (2), and a plurality of first screw holes (302) are provided; a first screw rod (301) is arranged on the inner side of the first screw hole (302); a first threaded hole (303) is provided on one side of the first air-floating plate (3), and the first threaded hole (303) corresponds to the first screw hole (302) in position.
4. A weight anti-sway mechanism according to claim 3, characterized in that: The first fixing assembly comprises a first connecting nut (304) and a first adjusting nut (305); the first connecting nut (304) is arranged at one end of the first screw rod (301), the first connecting nut (304) and the first screw rod (301) are threadedly connected to each other, the first connecting nut (304) is arranged on the outer wall of the first housing (2), the first adjusting nut (305) is arranged at one side of the first connecting nut (304), and the first adjusting nut (305) and the first screw rod (301) are threadedly connected to each other.
5. The weight anti-sway mechanism according to claim 3, characterized in that: The mounting assembly comprises a mounting slot (403), a second screw hole (404) and a second threaded hole (405); a mounting slot (403) is provided on the inner side of the first housing (2); three groups of mounting slots (403) are evenly provided; the mounting slots (403) and the first screw holes (302) are staggered; the mounting plate (401) and the mounting slots (403) are interlocked; a second screw hole (404) is provided on one side of the first housing (2); the second screw hole (404) and the mounting slot (403) are interlinked; the second screw rod (402) is arranged on the inner side of the second screw hole (404); and a second threaded hole (405) is provided on one side of the mounting plate (401).
6. A weight anti-sway mechanism according to claim 5, characterized in that: The mounting assembly further comprises a second connecting nut (406) and a second adjusting nut (407); a second connecting nut (406) is disposed at one end of the second screw rod (402), the second connecting nut (406) and the second screw rod (402) are threadedly connected to each other, the second connecting nut (406) is disposed on the outer wall of the first housing (2), a second adjusting nut (407) is disposed at one side of the second connecting nut (406), and the second adjusting nut (407) and the second screw rod (402) are threadedly connected to each other.
7. A weight anti-sway mechanism according to claim 5, characterized in that: The second fixing assembly comprises a third screw hole (503) and a third threaded hole (504); a third screw hole (503) is provided on one side of the second housing (4); the third screw hole (503) is provided in a plurality of groups; a third screw rod (501) is arranged on the inner side of the third screw hole (503); a third threaded hole (504) is provided on one side of the second air-floating plate (5); and the third threaded hole (504) corresponds to the position of the third screw hole (503).
8. A weight anti-sway mechanism according to claim 7, characterized in that: The second fixing assembly further comprises a third connecting nut (505) and a third adjusting nut (506); the third connecting nut (505) is arranged at one end of the third screw rod (501), the third connecting nut (505) and the third screw rod (501) are threadedly connected to each other, the third connecting nut (505) is arranged on the outer wall of the second housing (4), the third adjusting nut (506) is arranged at one side of the third connecting nut (505), and the third adjusting nut (506) and the third screw rod (501) are threadedly connected to each other.
9. A static weight Rockwell hardness tester, characterized in that It comprises a weight anti-sway mechanism according to any one of claims 1 to 8, and further comprises: a hardness machine body (7), a sample table (701), a test pressure head (702) and a measuring component; a sample table (701) is arranged on one side of the hardness machine body (7), a test pressure head (702) is arranged on one side of the hardness machine body (7), and the test pressure head (702) is arranged above the sample table (701).
10. A deadweight Rockwell hardness tester according to claim 9, characterized in that: The measuring assembly comprises a weight loading mechanism (801), a weight body (802), a loading lever (803) and a lifting mechanism (804); the weight loading mechanism (801) is arranged on one side of the hardness tester body (7); the weight body (802) is arranged on one side of the weight loading mechanism (801); a plurality of weight bodies (802) are arranged; a loading lever (803) is arranged above the weight loading mechanism (801); and a lifting mechanism (804) is arranged on one side of the test pressure head (702).