Damping platform air static pressure main shaft capable of rotating stably

Abstract

The utility model discloses a damping platform air static pressure main shaft capable of rotating stably, and relates to the technical field of air static pressure main shafts, the damping platform air static pressure main shaft comprises a pedestal assembly and a stabilizing frame group, the top of the pedestal assembly is connected with an air static pressure shaft group, and the stabilizing frame group is installed at the upper end of one side, close to a damping platform group, of an adjusting frame group. According to the damping platform air static pressure main shaft capable of rotating stably, the stabilizing frame set is connected and installed on the periphery of the pedestal assembly through the adjusting frame set, and the rotating frame is matched with the guide rail 403, so that the whole stabilizing frame set can provide effective structural swing and translation adjusting mobility; the air static pressure shaft set and the damping table set can effectively assist the damping table body in avoiding vibration to the maximum extent in the rotating process, it is ensured that the damping table body has enough stability in the rotating process, and in addition, through the structural detachability of the air static pressure shaft set and the damping table set, the convenience and stability of structural butt joint can be ensured; and an operator can conveniently, effectively and conveniently maintain the device, and the flexibility of the structure of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air static pressure main shafts, in particular to an air static pressure main shaft of a vibration reduction platform with stable rotation. Background Art

[0002] The air static pressure spindle is a high-precision processing equipment that uses gas pressure to support and drive the spindle to rotate. Its structure mainly includes the spindle, bearings, gas nozzles and gas circuits; the gas converts the kinetic energy of the high-speed rotating airflow into static air pressure, thereby generating axial and radial support forces, thereby driving the spindle to rotate. When the spindle rotates, the gas forms a thin film between the bearing and the shaft housing to achieve air static pressure support. The air static pressure spindle has been widely used in precision machining fields such as aerospace, aviation manufacturing, high-speed train manufacturing, semiconductor manufacturing, etc.

[0003] After the conventional shock-absorbing platform is structurally connected to the drive device through the air static pressure main shaft, during the rotation process, the shock-absorbing platform may experience slight unstable rotation due to a slight eccentricity of the axis of the structural connection, thus affecting its use. There is a lack of effective structure to assist the rotating shock-absorbing platform to reduce the polarization generated during its rotation and to ensure the stability of its structure.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an air static pressure main shaft of a shock-absorbing platform with stable rotation is proposed. Utility Model Content

[0005] The utility model aims to provide an air static pressure main shaft of a vibration reduction platform with stable rotation, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air static pressure main shaft of a shock-absorbing platform that rotates smoothly, comprising a base assembly and a stabilizing frame group, the top of the base assembly is connected to an air static pressure shaft group, and the top of the air static pressure shaft group is connected to a shock-absorbing platform group, and an adjusting frame group is arranged around the shock-absorbing platform group, the stabilizing frame group is installed at the upper end of one side of the adjusting frame group close to the shock-absorbing platform group, the stabilizing frame group comprises a bidirectional screw, an upper shock-absorbing block, a lower shock-absorbing block, an upper limit wheel and a lower limit wheel, the upper and lower ends of the bidirectional screw are respectively slidably installed with an upper shock-absorbing block and a lower shock-absorbing block, and the upper and lower limit wheels are respectively installed on the side of the upper shock-absorbing block and the lower shock-absorbing block away from the adjusting frame group.

[0007] Furthermore, the pedestal assembly includes a stabilizing seat, an assembling seat, a driving seat and a rotating frame. The bottom of the stabilizing seat is connected to the assembling seat, the top of the stabilizing seat is installed with a driving seat, and the outer side of the driving seat is surrounded by a rotating frame.

[0008] Furthermore, the air static pressure shaft assembly includes an air static pressure shaft body, an air intake valve and a docking flange. The air intake valve is connected to one side of the exterior of the air static pressure shaft body, and a docking flange is installed on the top of the air static pressure shaft body.

[0009] Furthermore, the shock absorbing platform assembly includes a transmission shaft, a fastening flange, a shock absorbing gasket and a shock absorbing platform body. The bottom of the transmission shaft is connected to the fastening flange, and the shock absorbing gasket is embedded in the bottom opening of the fastening flange. The shock absorbing platform body is installed on the top of the transmission shaft.

[0010] Furthermore, the adjustment frame group includes a vertical frame, a limiting frame, a guide rail and a docking position, the limiting frame is installed on the top of the vertical frame, the guide rail is arranged at the lower end of the limiting frame, and the docking position is arranged at the bottom of the guide rail.

[0011] Furthermore, the guide rail is fixedly mounted on a side surface of the stand close to the air static pressure shaft group, and the limit frame and the stand are arranged in an integrated structure.

[0012] Furthermore, the internal dimension structure of the docking position matches the outer surface structure of the end of the rotating frame away from the driving seat, and the rotating frame is evenly distributed around the driving seat in a "cross" shape.

[0013] Furthermore, the upper shock absorbing block and the lower shock absorbing block are both slidably connected to the guide rail, and the vertical threads of the bidirectional screw penetrate the middle parts of the upper shock absorbing block and the lower shock absorbing block.

[0014] The utility model provides an air static pressure main shaft of a shock absorbing platform with stable rotation, which has the following beneficial effects:

[0015] 1. The utility model, by vertically axially rotating the bidirectional screw, allows the upper shock-absorbing block and the lower shock-absorbing block threadedly connected to the upper and lower ends thereof to move up and down in the vertical direction, thereby driving the upper limit wheel and the lower limit wheel directly connected thereto to move and adjust synchronously. By using the above structure, the upper limit wheel and the lower limit wheel can be clamped and set on the edge of the shock-absorbing platform body, thereby playing a role in structurally limiting the rotating shock-absorbing platform body in the horizontal direction, absorbing and alleviating the kinetic energy of parallel vibration, so as to ensure the rotation stability of the shock-absorbing platform body, and in conjunction with the guide rails arranged on the side of the vertical frame, the entire stable frame group can utilize the structure in which the upper shock-absorbing block and the lower shock-absorbing block are slidably connected thereto, so that it can be moved and adjusted in the vertical direction to adapt to the installation height of the shock-absorbing platform body, thereby ensuring the flexibility of use of the entire device structure.

[0016] 2. The utility model, by respectively installing docking flanges on the top of the air static pressure shaft body and arranging a fastening flange on the bottom of the transmission shaft, cooperates with the use of shock-absorbing gaskets, on the one hand, the air static pressure shaft group and the shock-absorbing platform group have good structural disassembly, so as to facilitate the disassembly and maintenance of the equipment structure, and at the same time, the use of shock-absorbing gaskets can well absorb and reduce the kinetic energy of the vibration during rotation, and by installing a rotating frame around the driving seat, wherein the rotating frame is inserted into the docking position at the bottom of the guide rail, the adjustment frame group and the platform assembly have good structural disassembly and assembly, and at the same time, the structural rotation of the rotating frame itself makes the entire adjustment frame group connected to the stabilizing frame group have swing adjustment in the vertical direction. The use of the above structure can not only further improve the flexibility of the device structure, but also facilitate the disassembly and assembly of the device structure to avoid structural interference affecting the operation, and through the use of the assembly seat, the device mounting structure surface can be connected and fixed as needed to ensure the structural stability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the air static pressure main shaft of the vibration-absorbing platform with stable rotation according to the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a stabilizing seat and an air static pressure shaft assembly of an air static pressure main shaft of a vibration-absorbing platform with stable rotation according to the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a vibration-absorbing platform assembly of an air static pressure main shaft of a vibration-absorbing platform with stable rotation according to the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of an adjusting frame group and a stabilizing frame group of an air static pressure main shaft of a vibration-absorbing platform with stable rotation.

[0021] In the figure: 1. Base assembly; 101. Stable seat; 102. Assembly seat; 103. Drive seat; 104. Rotating frame; 2. Air static pressure shaft group; 201. Air static pressure shaft body; 202. Inlet valve; 203. Docking flange; 3. Shock-absorbing platform group; 301. Drive shaft; 302. Fastening flange; 303. Shock-absorbing gasket; 304. Shock-absorbing platform body; 4. Adjustment frame group; 401. Vertical frame; 402. Limit frame; 403. Guide rail; 404. Docking position; 5. Stable frame group; 501. Bidirectional screw; 502. Upper shock-absorbing block; 503. Lower shock-absorbing block; 504. Upper limit wheel; 505. Lower limit wheel. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figures 1 to 4 As shown, a vibration-absorbing platform air static pressure main shaft with stable rotation includes a pedestal assembly 1 and a stabilizing frame assembly 5. The top of the pedestal assembly 1 is connected to an air static pressure shaft assembly 2, and the top of the air static pressure shaft assembly 2 is connected to a vibration-absorbing platform assembly 3, and an adjusting frame assembly 4 is arranged around the vibration-absorbing platform assembly 3. The stabilizing frame assembly 5 is installed on the upper end of one side of the adjusting frame assembly 4 close to the vibration-absorbing platform assembly 3. The stabilizing frame assembly 5 includes a bidirectional screw 501, an upper vibration-absorbing block 502, a lower vibration-absorbing block 503, an upper limit wheel 504 and a lower limit wheel 505. The upper limit wheel 504 of the bidirectional screw 501 is The upper and lower ends of the lower parts are slidably mounted with upper and lower damping blocks 502 and 503, and the upper and lower damping blocks 502 and 503 are respectively mounted with upper limit wheels 504 and lower limit wheels 505 on the side away from the adjustment frame group 4. The adjustment frame group 4 includes a stand 401, a limit frame 402, a guide rail 403 and a docking position 404. The limit frame 402 is mounted on the top of the stand 401, and the guide rail 403 is arranged at the lower end of the limit frame 402, and the docking position 404 is arranged at the bottom of the guide rail 403. The guide rail 403 is fixedly mounted on the stand 4 01 is close to the side surface of the air static pressure shaft group 2, and the limit frame 402 and the stand 401 are set in an integrated structure, the internal size structure of the docking position 404 matches the outer surface structure of the end of the rotating frame 104 away from the driving seat 103, and the rotating frame 104 is evenly distributed around the driving seat 103 in a "cross" shape, the upper shock absorbing block 502 and the lower shock absorbing block 503 are both slidably connected to the guide rail 403, and the vertical thread of the bidirectional screw 501 penetrates the middle of the upper shock absorbing block 502 and the lower shock absorbing block 503, through the vertical axial By rotating the bidirectional screw 501, the upper shock-absorbing block 502 and the lower shock-absorbing block 503 threadedly connected to the upper and lower ends thereof can be translated up and down in the vertical direction, thereby driving the upper limit wheel 504 and the lower limit wheel 505 directly connected thereto to be moved and adjusted synchronously, and in conjunction with the guide rail 403 set on the side of the stand 401, the entire stabilizing frame assembly 5 utilizes the structure in which the upper shock-absorbing block 502 and the lower shock-absorbing block 503 are slidably connected thereto, so that it can be moved and adjusted in the vertical direction to adapt to the installation height of the shock-absorbing platform body 304.

[0024] like Figures 1 to 4As shown, the seat assembly 1 includes a stabilizing seat 101, an assembling seat 102, a driving seat 103 and a rotating frame 104, the bottom of the stabilizing seat 101 is connected to the assembling seat 102, and the top of the stabilizing seat 101 is installed with the driving seat 103, and the outer side of the driving seat 103 is surrounded by the rotating frame 104, the air static pressure shaft group 2 includes an air static pressure shaft body 201, an air intake valve 202 and a docking flange 203, the outer side of the air static pressure shaft body 201 is connected to the air intake valve 202, and the top of the air static pressure shaft body 201 is installed with the docking flange 203, the shock absorbing platform group 3 includes a transmission shaft 301, a fastening flange 302, a shock absorbing gasket 303 and a shock absorbing platform body 304, the bottom of the transmission shaft 301 is connected to the fastening flange 302, and the fastening flange 30 A shock-absorbing washer 303 is embedded in the bottom opening of 2, and a shock-absorbing platform body 304 is installed on the top of the transmission shaft 301. By installing a docking flange 203 on the top of the air static pressure shaft body 201 and arranging a fastening flange 302 at the bottom of the transmission shaft 301, and using the shock-absorbing washer 303, the air static pressure shaft group 2 and the shock-absorbing platform group 3 have good structural disassembly performance, and can absorb and reduce the kinetic energy of vibration during rotation. In addition, the rotating frame 104 is inserted into the docking position 404 at the bottom of the guide rail 403, so that the adjustment frame group 4 and the base assembly 1 have good structural disassembly performance. At the same time, due to the structural rotation performance of the rotating frame 104 itself, the entire adjustment frame group 4 connected with the stabilizing frame group 5 has swing adjustment performance in the vertical direction.

[0025] In summary, if Figures 1 to 4 As shown, the air static pressure main shaft of the shock-absorbing platform with stable rotation, when in use, first fix the whole device on the installation structure surface through the assembly seat 102 at the bottom of the stabilizing seat 101, then connect the external air supply device to the air inlet valve 202 on one side of the air static pressure shaft body 201 through the pipeline, and at the same time, connect the air static pressure shaft group 2 at the top of the seat assembly 1 with the shock-absorbing platform group 3 through the docking flange 203 at the top and the fastening flange 302 at the bottom of the transmission shaft 301, so as to structurally connect and fix them. During the docking process, the shock-absorbing gasket 303 fits tightly at the docking point of the docking flange 203 and the fastening flange 302, which has both sealing effect and shock absorption and energy absorption.

[0026] Then, the adjustment frame group 4 with the stabilizing frame group 5 is installed, and the docking position 404 opened at the bottom of the guide rail 403 is used to insert it into the end of the rotating frame 104 away from the driving seat 103, so as to structurally connect the adjustment frame group 4 and the air static pressure shaft group 2, and then the upper shock absorbing block 502 and the lower shock absorbing block 503 are used to move vertically along the surface of the guide rail 403, and then the adjustment frame group 4 is swung and adjusted to the side perpendicular to the shock absorbing platform body 304 by rotating the rotating frame 104, until the upper limit wheel 504 and the lower limit wheel 505 are set on the shock absorbing platform body. The upper and lower sides of the edge of 304, and then only the two-way screw 501 needs to be vertically rotated so that the upper limit wheel 504 and the lower limit wheel 505 can be respectively fitted on the upper and lower sides of the edge of the shock-absorbing platform body 304. When the driving seat 103 drives the air static pressure shaft group 2 and the shock-absorbing platform group 3 to rotate axially, the upper limit wheel 504 and the lower limit wheel 505 will rotate in accordance with the surface of the shock-absorbing platform body 304, which will not cause structural interference, and can also absorb vibration energy and limit the rotating shock-absorbing platform body 304, thereby ensuring the stability of its rotation as much as possible.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A vibration-absorbing platform air static pressure main shaft with stable rotation, comprising a base assembly (1) and a stabilizing frame assembly (5), characterized in that: The top of the pedestal assembly (1) is connected to an air static pressure shaft assembly (2), and the top of the air static pressure shaft assembly (2) is connected to a shock absorbing platform assembly (3), and an adjusting frame assembly (4) is arranged around the shock absorbing platform assembly (3). The stabilizing frame assembly (5) is installed at the upper end of the adjusting frame assembly (4) on one side close to the shock absorbing platform assembly (3), and the stabilizing frame assembly (5) comprises a bidirectional screw rod (501), an upper shock absorbing block (502), a lower shock absorbing block (503), an upper limit wheel (504) and a lower limit wheel (505). The upper and lower ends of the bidirectional screw rod (501) are respectively slidably installed with an upper shock absorbing block (502) and a lower shock absorbing block (503), and the upper and lower limit wheels (504) and the lower limit wheels (505) are respectively installed on the sides of the upper shock absorbing block (502) and the lower shock absorbing block (503) away from the adjusting frame assembly (4).

2. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 1, characterized in that: The pedestal assembly (1) comprises a stabilizing seat (101), an assembling seat (102), a driving seat (103) and a rotating frame (104); the bottom of the stabilizing seat (101) is connected to the assembling seat (102), the top of the stabilizing seat (101) is mounted with the driving seat (103), and the rotating frame (104) is arranged around the outer side of the driving seat (103).

3. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 1, characterized in that: The air static pressure shaft assembly (2) comprises an air static pressure shaft body (201), an air intake valve (202) and a docking flange (203); the air intake valve (202) is connected to the outer side of the air static pressure shaft body (201), and the docking flange (203) is installed on the top of the air static pressure shaft body (201).

4. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 1, characterized in that: The shock absorbing platform assembly (3) comprises a transmission shaft (301), a fastening flange (302), a shock absorbing washer (303) and a shock absorbing platform body (304); the bottom of the transmission shaft (301) is connected to the fastening flange (302), and the shock absorbing washer (303) is embedded in the bottom opening of the fastening flange (302); the top of the transmission shaft (301) is equipped with the shock absorbing platform body (304).

5. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 2, characterized in that: The adjustment frame group (4) comprises a vertical frame (401), a limiting frame (402), a guide rail (403) and a docking position (404); the limiting frame (402) is installed on the top of the vertical frame (401), the guide rail (403) is arranged at the lower end of the limiting frame (402), and the docking position (404) is arranged at the bottom of the guide rail (403).

6. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 5, characterized in that: The guide rail (403) is fixedly mounted on a side surface of the stand (401) close to the air static pressure shaft group (2), and the limit frame (402) and the stand (401) are arranged in an integrated structure.

7. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 5, characterized in that: The internal dimension structure of the docking position (404) matches the outer surface structure of one end of the rotating frame (104) away from the driving seat (103), and the rotating frame (104) is evenly spaced around the driving seat (103) in a "cross" shape.

8. The air static pressure main shaft of the vibration-absorbing platform with stable rotation according to claim 6, characterized in that: The upper damping block (502) and the lower damping block (503) are both slidably connected to the guide rail (403), and the bidirectional screw rod (501) vertically threads through the middle of the upper damping block (502) and the lower damping block (503).

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