Weight anti-swing mechanism and dead weight type Rockwell hardness machine thereof
By employing a double-clamping and limiting weight anti-sway mechanism in a static weight Rockwell hardness tester, and using an air-floating plate and screw-nut combination to fix the spindle, the problem of measurement eccentricity caused by spindle oscillation is solved, and more accurate hardness measurement is achieved.
Patent Information
- Application Number
- CN202423152528.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing static weight Rockwell hardness testers, the up-and-down movement of the weights causes the spindle to swing back and forth, resulting in eccentricity of the indentation when the main test force is applied, which affects the accuracy of hardness measurement.
The anti-sway mechanism of the weight adopts a double clamping and limiting mechanism. The first and second air-bearing plates are fixed to the main shaft by the fixing components of the main shaft and the first and second air-bearing plates. The air-bearing plates are fixed to a designated position inside the shell by the combination of screws and nuts. The air pressure is adjusted by the air source to reduce the swing of the main shaft.
It effectively reduces measurement errors caused by spindle oscillation, improving the measurement accuracy and technical specifications of the static weight Rockwell hardness tester.
Smart Images
Figure CN223711212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to static weight type Rockwell hardness tester technical field especially relates to a weight anti-swing mechanism and static weight type Rockwell hardness tester. BACKGROUND
[0002] In manufacturing production, the design requirement of each part of product has strict regulation to material hardness, static weight type Rockwell hardness tester can accurately measure the hardness of material, for determining whether the material hardness of production part meets the design requirement, need to help static weight type Rockwell hardness tester to carry out material hardness test, simultaneously, static weight type Rockwell hardness tester can also ensure the acceptance of product, guarantee the quality of final product.
[0003] The main shaft bottom of present static weight type Rockwell hardness tester adopts two surface ball bearing anti-swing mechanism design, this mode when measuring, the up-down movement of weight will lead to the front-back swing of main shaft, makes the eccentricity of indentation when loading main test force, and the indentation depth and other related data measured from this will produce deviation with the accurate data under normal circumstances, this deviation will eventually lead to the inaccuracy of hardness measurement, cannot truly reflect the hardness characteristic of test sample, thereby influence the accurate judgment to material hardness, lead to inaccurate measurement.
[0004] Therefore, aiming at the condition that the main shaft of existing static weight type Rockwell hardness tester is easy to sway when loading test force, influence measurement result, can design a weight anti-swing mechanism and static weight type Rockwell hardness tester, through the way of double clamping limiting, simple and quick operation can reduce the measurement error caused by the swing of main shaft, reduce the friction of equipment through the control of the air gap of air floating flat plate and shell, the air gap of air floating flat plate and main shaft, thereby effectively improve the technical index of static weight type Rockwell hardness tester. UTILITY MODEL CONTENTS
[0005] In order to overcome the problem that most static weight type Rockwell hardness testers, when measuring operation, the up-down movement of weight will lead to the front-back swing of main shaft, makes the eccentricity of indentation when loading main test force, cannot truly reflect the hardness characteristic of test sample, thereby influence the accurate judgment to material hardness, cause inaccurate measurement.
[0006] The utility model discloses a technical scheme for a weight anti-swing mechanism and a static weight type Rockwell hardness tester, comprising a main shaft, a first housing, a first air floating flat plate, a first screw rod, a first fixing assembly, a second housing, a mounting clamping plate, a second screw rod, a mounting assembly, a second air floating flat plate, a third screw rod, an air source hole and a second fixing assembly.
[0007] Preferably, the main shaft transmits the test force, the first housing fixes the position of the first air floating flat plate, the first fixing assembly locks the first screw rod, the first screw rod fixes the first air floating flat plate, the first air floating flat plate is fixed at a specified position inside the first housing, the first air floating flat plate limits the main shaft, the second housing is stacked above the first housing, the mounting assembly determines the combined position of the second housing and the first housing, the mounting clamping plate is clamped into the first housing, the second screw rod is rotated to lock the position of the mounting clamping plate, thereby fixedly connecting the second housing and the first housing, the second housing fixes the position of the second air floating flat plate, the second fixing assembly locks the third screw rod, the third screw rod fixes the second air floating flat plate, the second air floating flat plate is fixed at a specified position inside the second housing, the second air floating flat plate further limits the main shaft, the air source hole is communicated with the air source, the air pressure between the main shaft and the first air floating flat plate and the second air floating flat plate is flexibly adjusted, thereby realizing the up-and-down movement of the main shaft without rotation and deviation, reducing the measurement error caused by the swing of the main shaft, and improving the technical index of the static weight type Rockwell hardness tester.
[0008] As preferred, the first shell is hollow cylindrical, the inner wall of the first shell is hexagonal, the first air floating flat plate is centrally arranged on the inner side of the first shell, one side of the first air floating flat plate abuts against the inner wall of the first shell, the other side of the first air floating flat plate abuts against the outer side of the main shaft, the first screw rod is a bidirectional screw rod, the inner wall of the second shell is hexagonal, the second air floating flat plate is centrally arranged on the inner side of the second shell, one side of the second air floating flat plate abuts against the inner wall of the second shell, the other side of the second air floating flat plate abuts against the outer side of the main shaft, the second screw rod is a bidirectional screw rod, the air source hole is L-shaped, the inner wall of the first shell comprises 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 are sequentially connected to surround a hexagonal area, three groups of first air floating flat plates are arranged on the first inner wall, the third inner wall and the fifth inner wall respectively, the inner wall of the second shell comprises 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 sequentially connected to surround a hexagonal area, three groups of second air floating flat plates are arranged on the seventh inner wall, the ninth inner wall and the eleventh inner wall respectively, wherein the first inner wall corresponds to the seventh inner wall in position, the second inner wall corresponds to the eighth inner wall in position, the third inner wall corresponds to the ninth inner wall in position, the fourth inner wall corresponds to the tenth inner wall in position, the fifth inner wall corresponds to the eleventh inner wall in position, and the sixth inner wall corresponds to the twelfth inner wall in position.
[0009] As preferred, the first fixing assembly comprises a first screw hole and a first threaded hole; a first screw hole is formed on one side of the first shell, a plurality of groups of first screw holes are formed, a first screw rod is arranged on the inner side of the first screw hole, a first threaded hole is formed on one side of the first air floating flat plate, and the first threaded hole corresponds to the first screw hole in position.
[0010] As preferred, the first fixing assembly comprises a first connecting nut and a first adjusting nut; a first connecting nut is arranged at one end of the first screw rod, the first connecting nut and the first screw rod are threadedly connected with each other, the first connecting nut is arranged on the outer wall of the first shell, a first adjusting nut is arranged on one side of the first connecting nut, and the first adjusting nut and the first screw rod are threadedly connected with each other.
[0011] As preferred, the mounting assembly comprises a mounting clamping groove, a second screw hole and a second threaded hole; a mounting clamping groove is formed on the inner side of the first shell, three groups of mounting clamping grooves are uniformly formed, the mounting clamping grooves and the first screw holes are alternately distributed, a mounting clamping plate and the mounting clamping grooves are mutually embedded, a second screw hole is formed on one side of the first shell, the second screw hole and the mounting clamping groove are mutually penetrated, a second screw rod is arranged on the inner side of the second screw hole, and a second threaded hole is formed on one side of the mounting clamping plate.
[0012] As preferred, the installation assembly further comprises a second connecting nut and a second adjusting nut; one end of the second screw rod is provided with the second connecting nut, the second connecting nut is threadedly connected with the second screw rod, the second connecting nut is arranged on the outer wall of the first shell, one side of the second connecting nut is provided with the second adjusting nut, and the second adjusting nut is threadedly connected with the second screw rod.
[0013] As preferred, the second fixing assembly comprises a third screw hole and a third threaded hole; a plurality of third screw holes are arranged on one side of the second shell, a third screw rod is arranged in the third screw hole, and a third threaded hole is arranged on one side of the second air floating flat plate and corresponds to the third screw hole in position.
[0014] As preferred, the second fixing assembly further comprises a third connecting nut and a third adjusting nut; one end of the third screw rod is provided with the third connecting nut, the third connecting nut is threadedly connected with the third screw rod, the third connecting nut is arranged on the outer wall of the second shell, one side of the third connecting nut is provided with the third adjusting nut, and the third adjusting nut is threadedly connected with the third screw rod.
[0015] A static weight Rockwell hardness tester comprises a weight swing prevention mechanism, a hardness tester main body, a sample table, a test indenter and a measuring assembly; one side of the hardness tester main body is provided with the sample table, one side of the hardness tester main body is provided with the test indenter, and the test indenter is arranged above the sample table.
[0016] Preferably, the sample table is used to place the material to be detected, the measuring assembly is used to control the test indenter to contact the surface of the material, and the hardness tester main body is used to perform the material hardness detection operation, so that the material hardness detection operation is conveniently and stably performed.
[0017] As preferred, the measuring assembly comprises a weight loading mechanism, a weight main body, a loading lever and a lifting mechanism; one side of the hardness tester main body is provided with the weight loading mechanism, one side of the weight loading mechanism is provided with the weight main body, the weight main body is provided with a plurality of groups, the upper side of the weight loading mechanism is provided with the loading lever, and one side of the test indenter is provided with the lifting mechanism.
[0018] The utility model discloses the beneficial effects of:
[0019] 1. When installing the air floating flat plate, the first air floating flat plate is fixed by the first screw rod, the first air floating flat plate is fixed to the specified position in the first shell, the second shell is stacked on the upper side of the first shell, the installation clamping plate is clamped into the first shell, the second shell and the first shell are fixedly connected by rotating the second screw rod to lock the position of the installation clamping plate, the second air floating flat plate is fixed by the third screw rod, and the second air floating flat plate is fixed to the specified position in the second shell, so that the air floating flat plate is conveniently disassembled and assembled.
[0020] 2、When the position of the main shaft is limited, the test force is transmitted through the main shaft, the first air floating flat plate is used to limit the main shaft, the second air floating flat plate is used to further limit the main shaft, the air source hole is communicated with the air source, the air pressure between the main shaft and the first air floating flat plate and the second air floating flat plate is flexibly adjusted, the problem that the eccentricity of the indentation appears when the main test force is loaded due to the front and back swing of the main shaft caused by the up and down movement of the weight of most static weight Rockwell hardness machines is solved, and the technical index of the static weight Rockwell hardness machine is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A three-dimensional structure schematic view of a weight anti-swing mechanism is shown.
[0022] Figure 2 A three-dimensional structure schematic view of a mounting assembly of a weight anti-swing mechanism is shown.
[0023] Figure 3 A first shell cross-section three-dimensional structure schematic view of a weight anti-swing mechanism is shown.
[0024] Figure 4 A second shell three-dimensional structure schematic view of a weight anti-swing mechanism is shown.
[0025] Figure 5 A second shell cross-section three-dimensional structure schematic view of a weight anti-swing mechanism is shown.
[0026] Figure 6 A three-dimensional structure schematic view of a static weight Rockwell hardness machine is shown.
[0027] The specific embodiments of the present application will be further described below in conjunction with the drawings and examples. DETAILED DESCRIPTION
[0028] The present application will be further described below in conjunction with the drawings and examples.
[0029] See Figures 1-5The utility model provides a kind of embodiment: a weight anti-swing mechanism, including main shaft 1, first shell 2, first air float flat plate 3, first screw rod 301, first fixed assembly, second shell 4, mounting clamping plate 401, second screw rod 402, mounting assembly, second air float flat plate 5, third screw rod 501, gas supply hole 502 and second fixed assembly;One end of the main shaft 1 is provided with the first shell 2, the first shell 2 is hollow columnar, the inner wall of the first shell 2 is hexagonal, the inner side of the first shell 2 is provided with the first air floating flat plate 3, the first air floating flat plate 3 is provided with three groups, the first air floating flat plate 3 is uniformly arranged on the inner side of the first shell 2, the first air floating flat plate 3 is arranged in the center of the inner side of the first shell 2, the inner wall of the first shell 2 includes 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, 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 are sequentially connected to surround the hexagonal area, three groups of the first air floating flat plate 3 are arranged on the first inner wall, the third inner wall and the fifth inner wall respectively, one side of the first air floating flat plate 3 abuts against the inner wall of the first shell 2, the other side of the first air floating flat plate 3 abuts against the outer side of the main shaft 1, one side of the first shell 2 is provided with the first screw rod 301, the first screw rod 301 is threaded through the first shell 2, one end of the first screw rod 301 is threadedly connected with the first air floating flat plate 3, the first screw rod 301 is a bidirectional screw rod, one side of the first shell 2 is provided with the first fixing assembly, the top of the first shell 2 is provided with the second shell 4, the inner wall of the second shell 4 is hexagonal, the bottom surface of the second shell 4 is provided with the mounting clamping plate 401, the mounting clamping plate 401 is provided with three groups, the outer side of the first shell 2 is provided with the second screw rod 402, the second screw rod 402 is a bidirectional screw rod, one end of the second screw rod 402 is threadedly connected with the mounting clamping plate 401, one side of the mounting clamping plate 401 is provided with the mounting assembly, the inner side of the second shell 4 is provided with the second air floating flat plate 5, the second air floating flat plate 5 corresponds to the position of the first air floating flat plate 3, the second air floating flat plate 5 is arranged in the center of the inner side of the second shell 4, the inner wall of the second shell 4 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 sequentially connected to surround the hexagonal area, three groups of the second air floating flat plate 5 are arranged on the seventh inner wall, the ninth inner wall and the eleventh inner wall respectively, wherein the first inner wall corresponds to the position of the seventh inner wall, the second inner wall corresponds to the position of the eighth inner wall, the third inner wall corresponds to the position of the ninth inner wall, the fourth inner wall corresponds to the position of the tenth inner wall, the fifth inner wall corresponds to the position of the eleventh inner wall, and the sixth inner wall corresponds to the position of the twelfth inner wall, one side of the second air floating flat plate 5 abuts against the inner wall of the second shell 4, the other side of the second air floating flat plate 5 abuts against the outer side of the main shaft 1, one side of the second shell 4 is provided with the third screw rod 501, the third screw rod 501 is threaded through the second shell 4, one end of the third screw rod 501 is threadedly connected with the second air floating flat plate 5, the first air floating flat plate 3 and the second air floating flat plate 5 are provided with the air source hole 502 on one side, the air source hole 502 is L-shaped, the outer side of the second shell 4 is provided with the second fixing assembly.
[0030] Please refer to Figures 1-5In the embodiment, the first fixing assembly comprises a first screw hole 302, a first threaded hole 303, a first connecting nut 304 and a first adjusting nut 305; a side of the first shell 2 is provided with a first screw hole 302, a plurality of groups of first screw holes 302 are provided, the first screw rod 301 is arranged inside the first screw hole 302, a side of the first air floating flat plate 3 is provided with a first threaded hole 303, the first threaded hole 303 corresponds in position to the first screw hole 302, one end of the first screw rod 301 is provided with the first connecting nut 304, the first connecting nut 304 is threadedly connected with the first screw rod 301, the first connecting nut 304 is arranged on the outer wall of the first shell 2, a side of the first connecting nut 304 is provided with the first adjusting nut 305, the first adjusting nut 305 is threadedly connected with the first screw rod 301, the first screw rod 301 is turned into the first shell 2 through the first screw hole 302, one end of the first screw rod 301 is turned into the first threaded hole 303, the first connecting nut 304 is rotated around the first screw rod 301, the first connecting nut 304 abuts against the outer wall of the first shell 2, then the first adjusting nut 305 is turned into the first screw rod 301, the first adjusting nut 305 drives the first screw rod 301 to rotate, so that the position of the first air floating flat plate 3 is adjusted, the first air floating flat plate 3 abuts against the main shaft 1, and the main shaft 1 is positioned; the mounting assembly comprises a mounting clamping groove 403, a second screw hole 404, a second threaded hole 405, a second connecting nut 406 and a second adjusting nut 407; the inner side of the first shell 2 is provided with the mounting clamping groove 403, three groups of mounting clamping grooves 403 are uniformly provided, the mounting clamping grooves 403 are distributed in a staggered manner with the first screw hole 302, the mounting clamping groove 403 and the mounting clamping plate 401 are mutually embedded, a side of the first shell 2 is provided with the second screw hole 404, the second screw hole 404 and the mounting clamping groove 403 are mutually penetrated, the second screw rod 402 is arranged inside the second screw hole 404, a side of the mounting clamping plate 401 is provided with the second threaded hole 405, one end of the second screw rod 402 is provided with the second connecting nut 406, the second connecting nut 406 is threadedly connected with the second screw rod 402, the second connecting nut 406 is arranged on the outer wall of the first shell 2, a side of the second connecting nut 406 is provided with the second adjusting nut 407, the second adjusting nut 407 is threadedly connected with the second screw rod 402, the mounting position of the mounting clamping plate 401 is determined through the mounting clamping groove 403, the first shell 2 and the second shell 4 are combined in position correspondence, the second screw rod 402 is turned into the second screw hole 404, the mounting position of the second screw rod 402 is determined, the second connecting nut 406 is turned into one end of the second screw rod 402, the second connecting nut 406 abuts against the outer wall of the first shell 2 by being rotated, then the second adjusting nut 407 is turned into the second screw rod 402, the second adjusting nut 407 drives the second screw rod 402 to synchronously rotate, the second screw rod 402 is turned into the second threaded hole 405, the mounting clamping plate 401 and the first shell 2 are connected and fixed, so that the first shell 2 and the second shell 4 are stably combined and connected;
[0031] The second fixing assembly comprises a third threaded hole 503, a third threaded hole 504, a third connecting nut 505 and a third adjusting nut 506; a plurality of third threaded holes 503 are formed on one side of the second shell 4, the third threaded hole 503 is formed on the inner side of the third threaded hole 503, the second air floating flat plate 5 is provided with a third threaded hole 504 on one side, the third threaded hole 504 is in position correspondence with the third threaded hole 503, one end of the third threaded rod 501 is provided with a third connecting nut 505, the third connecting nut 505 is in threaded connection with the third threaded rod 501, the third connecting nut 505 is arranged on the outer wall of the second shell 4, one side of the third connecting nut 505 is provided with a third adjusting nut 506, the third adjusting nut 506 is in threaded connection with the third threaded rod 501, the third threaded rod 501 is turned into the second shell 4 through the third threaded hole 503, the third connecting nut 505 is turned into the third threaded rod 501, the third connecting nut 505 is abutted against the outer wall of the second shell 4 by rotating, the second air floating flat plate 5 is fixed in the cavity of the second shell 4 by turning the third threaded rod 501 into the third threaded hole 504, and the third adjusting nut 506 is turned into the third threaded rod 501, the third adjusting nut 506 drives the third threaded rod 501 to rotate synchronously, so that the second air floating flat plate 5 abuts against the main shaft 1, and the main shaft 1 is further limited.
[0032] Please refer to Figure 6 In the embodiment, a static weight type Rockwell hardness tester comprises a weight swing prevention mechanism as described above, and further comprises a hardness tester main body 7, a sample table 701, a test indenter 702 and a measuring assembly; one side of the hardness tester main body 7 is provided with the sample table 701, one side of the hardness tester main body 7 is provided with the test indenter 702, the test indenter 702 is arranged above the sample table 701, the material to be detected is placed on the sample table 701, the test indenter 702 contacts the surface of the material by using the measuring assembly, and the material hardness detection operation is performed by using the hardness tester main body 7, so that the material hardness detection operation is conveniently and stably performed; the measuring assembly comprises a weight loading mechanism 801, a weight main body 802, a loading lever 803 and a lifting mechanism 804; one side of the hardness tester main body 7 is provided with the weight loading mechanism 801, one side of the weight loading mechanism 801 is provided with the weight main body 802, the weight main body 802 is provided with a plurality of groups, the loading lever 803 is arranged above the weight loading mechanism 801, one side of the test indenter 702 is provided with the lifting mechanism 804, the test force is adjusted by controlling the mass and quantity of the weight main body 802, the test force is generated by using the weight loading mechanism 801, the gravity of the weight main body 802 is transmitted by using the loading lever 803, the height of the test indenter 702 is adjusted by using the lifting mechanism 804, the test indenter 702 accurately contacts the material sample, and the test operation is performed.
[0033] When the main shaft 1 is fixed, the first air floating flat plate 3 is sequentially placed in the first shell 2, the first threaded hole 303 is aligned with the first screw hole 302, the first screw rod 301 is rotated into the first screw 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 abut the outside of the first shell 2, the first air floating flat plate 3 is fixed in the first shell 2, the first adjusting nut 305 is rotated into the first screw rod 301, the first adjusting nut 305 is rotated to drive the first screw rod 301 to rotate synchronously, and the first air floating flat plate 3 abuts the main shaft 1;
[0034] Subsequently, the mounting card plate 401 is embedded into the mounting card slot 403, the second screw hole 404 is aligned with the second threaded hole 405, the second shell 4 is stacked above the first shell 2, the second screw rod 402 is rotated into the second screw hole 404 and the second threaded hole 405, the second connecting nut 406 is rotated into the second screw rod 402, the second screw rod 402 is rotated to abut the outside of the first shell 2, the second adjusting nut 407 is rotated into the second screw rod 402, the second adjusting nut 407 is rotated to drive the second screw rod 402 to rotate synchronously, and the first shell 2 and the second shell 4 are locked in position;
[0035] Finally, the second air floating flat plate 5 is sequentially placed in the cavity of the second shell 4, the third threaded hole 504 is aligned with the third screw hole 503, the third screw rod 501 is rotated into the third screw hole 503 and the third threaded hole 504, the third connecting nut 505 is rotated into the third screw rod 501, the third connecting nut 505 is rotated to abut the outside of the second shell 4, the second air floating flat plate 5 is fixed in the second shell 4, the third adjusting nut 506 is rotated into the third screw rod 501, the third adjusting nut 506 is rotated to drive the third screw rod 501 to rotate synchronously, and the second air floating flat plate 5 further abuts the main shaft 1;
[0036] During testing, the material sample to be detected is placed on the test sample table 701, the weight main body 802 on the weight loading mechanism 801 is adjusted according to the test force requirement, the gravity of the weight main body 802 is transmitted through the loading lever 803, the air source hole 502 is connected to the air source, the air source is ventilated to the first air floating flat plate 3 and the second air floating flat plate 5 through the air source hole 502, at this time, the air pressure between the air floating flat plate and the side surface of the main shaft 1 is greater than the pressure between the air floating flat plate and the shell, a gap appears between the first air floating flat plate 3, the second air floating flat plate 5 and the main shaft 1, the main shaft 1 is driven to stably ascend and descend, the height of the test pressure head 702 is adjusted by using the lifting mechanism 804, the test pressure head 702 accurately contacts the material sample, and the hardness testing operation of the hardness machine main body 7 is performed.
[0037] Through the above steps, the material to be detected is placed on the sample table 701, the test pressure head 702 contacts the surface of the material, the hardness machine main body 7 carries out the material hardness detection operation, the test force is transmitted through the main shaft 1, the first outer shell 2 is used to fix the position of the first air floating plate 3, the first fixed assembly is used to lock the first screw rod 301, the first screw rod 301 is used to fix the first air floating plate 3, the first air floating plate 3 is fixed on the inside of the first outer shell 2 at a specified position, the first air floating plate 3 is used to limit the main shaft 1, the second outer shell 4 is stacked on the top of the first outer shell 2, the mounting assembly is used to determine the combined position of the second outer shell 4 and the first outer shell 2, the mounting clamping plate 401 is clamped into the inside of the first outer shell 2, the second screw rod 402 is rotated to lock the position of the mounting clamping plate 401, thereby fixing the connection between the second outer shell 4 and the first outer shell 2, the position of the second air floating plate 5 is fixed through the second outer shell 4, the third screw rod 501 is locked through the second fixed assembly, the second air floating plate 5 is fixed through the third screw rod 501, the second air floating plate 5 is fixed at a specified position inside the second outer shell 4, the second air floating plate 5 is further used to limit the main shaft 1, the air source hole 502 is communicated with the air source, the air pressure between the main shaft 1 and the first air floating plate 3 and the second air floating plate 5 is flexibly adjusted, so that the main shaft 1 moves up and down without rotation and deviation, and the measurement error caused by the swing of the main shaft 1 is reduced.
[0038] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the person skilled in the art without departing from the purpose of the utility model.
Claims
1. A weight anti-swing mechanism comprising a main shaft (1); characterized in that: Also include the first shell (2), the first air floating flat plate (3), the first screw rod (301), the first fixed assembly, the second shell (4), the mounting clamping plate (401), the second screw rod (402), the mounting assembly, the second air floating flat plate (5), the air source hole (502) and the second fixed assembly; One end of the main shaft (1) is provided with the first shell (2), the inner side of the first shell (2) is provided with the first air floating flat plate (3), the first air floating flat plate (3) is provided with three groups, the first air floating flat plate (3) is uniformly arranged on the inner side of the first shell (2), one side of the first shell (2) is provided with the first screw rod (301), the first screw rod (301) is threaded through the first shell (2), one end of the first screw rod (301) is connected with the first air floating flat plate (3) through threads, one side of the first shell (2) is provided with the first fixed assembly, the top of the first shell (2) is provided with the second shell (4), the bottom surface of the second shell (4) is provided with the mounting clamping plate (401), the mounting clamping plate (401) is provided with three groups, the outer side of the first shell (2) is provided with the second screw rod (402), one end of the second screw rod (402) is connected with the mounting clamping plate (401) through threads, one side of the mounting clamping plate (401) is provided with the mounting assembly, the inner side of the second shell (4) is provided with the second air floating flat plate (5), the second air floating flat plate (5) corresponds to the first air floating flat plate (3), one side of the second shell (4) is provided with the third screw rod (501), the third screw rod (501) is threaded through the second shell (4), one end of the third screw rod (501) is connected with the second air floating flat plate (5) through threads, one side of the first air floating flat plate (3) and the second air floating flat plate (5) is provided with the air source hole (502), the outer side of the second shell (4) is provided with the second fixed assembly.
2. A weight anti-swing mechanism according to claim 1, characterized in that: The first shell (2) is a hollow column, the inner wall of the first shell (2) is hexagonal, the first air floating flat plate (3) is arranged centrally on the inner side of the first shell (2), one side of the first air floating flat plate (3) abuts against the inner wall of the first shell (2), the other side of the first air floating flat plate (3) abuts against the outer side of the main shaft (1), the first screw rod (301) is a bidirectional screw rod, the inner wall of the second shell (4) is hexagonal, the second air floating flat plate (5) is arranged centrally on the inner side of the second shell (4), one side of the second air floating flat plate (5) abuts against the inner wall of the second shell (4), the other side of the second air floating flat plate (5) abuts against the outer side of the main shaft (1), the second screw rod (402) is a bidirectional screw rod, the air source hole (502) is L-shaped.
3. A weight anti-swing mechanism according to claim 2, characterized in that: The first fixed assembly includes a first screw hole (302) and a first threaded hole (303); One side of the first shell (2) is provided with the first screw hole (302), the first screw hole (302) is provided with multiple groups, the first screw rod (301) is arranged on the inner side of the first screw hole (302), one side of the first air floating flat plate (3) is provided with the first threaded hole (303), the first threaded hole (303) corresponds to the first screw hole (302) in position.
4. A weight anti-swing mechanism according to claim 3, characterized in that: The first fixing assembly comprises a first connecting nut (304) and a first adjusting nut (305); one end of the first screw rod (301) is provided with the first connecting nut (304), the first connecting nut (304) is in threaded connection with the first screw rod (301), the first connecting nut (304) is arranged on the outer wall of the first shell (2), one side of the first connecting nut (304) is provided with the first adjusting nut (305), and the first adjusting nut (305) is in threaded connection with the first screw rod (301).
5. A weight anti-swing mechanism according to claim 3, characterized in that: The mounting assembly comprises a mounting clamping groove (403), a second screw hole (404) and a second threaded hole (405); the inner side of the first shell (2) is provided with the mounting clamping groove (403), three groups of mounting clamping grooves (403) are evenly arranged, the mounting clamping grooves (403) are distributed in a staggered mode with the first screw holes (302), the mounting clamping plate (401) is in interfitting connection with the mounting clamping grooves (403), one side of the first shell (2) is provided with the second screw hole (404), the second screw hole (404) is in interpenetration with the mounting clamping groove (403), the second screw rod (402) is arranged on the inner side of the second screw hole (404), and one side of the mounting clamping plate (401) is provided with the second threaded hole (405).
6. A weight anti-swing mechanism according to claim 5, characterized in that: The mounting assembly further comprises a second connecting nut (406) and a second adjusting nut (407); one end of the second screw rod (402) is provided with the second connecting nut (406), the second connecting nut (406) is in threaded connection with the second screw rod (402), the second connecting nut (406) is arranged on the outer wall of the first shell (2), one side of the second connecting nut (406) is provided with the second adjusting nut (407), and the second adjusting nut (407) is in threaded connection with the second screw rod (402).
7. A weight anti-swing mechanism according to claim 5, characterized in that: The second fixing assembly comprises a third screw hole (503) and a third threaded hole (504); one side of the second shell (4) is provided with the third screw hole (503), a plurality of groups of third screw holes (503) are arranged, the third screw rod (501) is arranged on the inner side of the third screw hole (503), and one side of the second air floating flat plate (5) is provided with the third threaded hole (504) in position correspondence with the third screw hole (503).
8. A weight anti-swing 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); one end of the third screw rod (501) is provided with the third connecting nut (505), the third connecting nut (505) is in threaded connection with the third screw rod (501), the third connecting nut (505) is arranged on the outer wall of the second shell (4), one side of the third connecting nut (505) is provided with the third adjusting nut (506), and the third adjusting nut (506) is in threaded connection with the third screw rod (501).
9. A static deadweight Rockwell hardness machine characterized by The weight anti-swing mechanism comprises a hardness machine body (7), a sample table (701), a test pressure head (702) and a measuring assembly; one side of the hardness machine body (7) is provided with the sample table (701), and one side of the hardness machine body (7) is provided with the test pressure head (702), and the test pressure head (702) is arranged above the sample table (701).
10. A dead weight Rockwell hardness machine according to claim 9 wherein: The measuring assembly comprises a weight loading mechanism (801), a weight body (802), a loading lever (803) and a lifting mechanism (804); one side of the hardness machine body (7) is provided with the weight loading mechanism (801), one side of the weight loading mechanism (801) is provided with the weight body (802), the weight body (802) is provided with a plurality of groups, the upper side of the weight loading mechanism (801) is provided with the loading lever (803), and one side of the test pressure head (702) is provided with the lifting mechanism (804).