An ultra-precision air static pressure servo turntable and its use method

Abstract

The invention relates to the technical field of servo turntables, and discloses an ultra-precision air static pressure servo turntable and a method for using the same, comprising a working shell, wherein the top of the working shell is fixedly connected to an inner shell, the outer wall of the inner shell is fixedly connected to an outer shell, one side of the inner wall of the inner shell is connected to an air pipe, one end of the air pipe penetrates the inner shell and extends to the outside of the outer shell, and also comprises an air static pressure mechanism, wherein an air pump is started, the air pump injects air pressure into the interior of the air pipe, the air pressure enters the interior of the inner shell through the air pipe, the air pressure enters the interior of the inner shell through the leakage hole setting of the porous plate, the air pressure enters the circular holes of the porous plate through the inner shell, the air pressure is sprayed toward the top of the turntable through the circular holes of the porous plate, so that the turntable is continuously suspended on the top of the outer shell, and at the same time, a motor is started, the motor drives the rotating shaft to rotate, the rotating shaft drives the cross sleeve to rotate, the cross sleeve drives the turntable to rotate, thereby causing the turntable to suspend and rotate, and the turntable to perform high-precision rotation work.

Description

Technical Field

[0001] The present invention relates to the technical field of servo turntables, and in particular to an ultra-precision air static pressure servo turntable and a use method thereof. Background Art

[0002] Servo turntables are widely used in the precision and ultra-precision CNC machine tool industry. Servo turntables are essential basic functional components for a variety of precision CNC machine tools, such as lathes, grinders, four-axis machine tools, and five-axis machine tools with rotating axes. The precision of the servo turntable determines the accuracy level of the machine tool. For precision and ultra-precision CNC machine tools with rotating axes, the servo turntables they are equipped with are required to have high rotation accuracy, high rigidity, large load capacity, stable operation, a wide applicable speed range, and a long service life.

[0003] However, existing servo turntables usually use an air pump to compress the air, and then spray it out through a nozzle, so that the airflow pushes the turntable to make the turntable perform linear or rotational motion. However, when the air pump compresses the air into the conversion chamber, dust particles in the air may be sucked into the conversion chamber, affecting the stability of the air pressure. Summary of the invention

[0004] The object of the present invention is to provide an ultra-precision air static pressure servo turntable and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an ultra-precision air static pressure servo turntable and a method of using the same, comprising a working shell, the top of the working shell is fixedly connected to an inner shell, the outer wall of the inner shell is fixedly connected to an outer shell, one side of the inner wall of the inner shell is connected to an air pipe, one end of the air pipe passes through the inner shell and extends to the outside of the outer shell, and also comprises an air static pressure mechanism, the air static pressure mechanism comprises a motor fixedly connected to the bottom of the inner wall of the working shell, the output end of the motor is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the working shell and extends to the outside of the inner shell, the top outer wall of the rotating shaft is fixedly connected to a cross sleeve, the outer wall of the cross sleeve contacts the turntable, and the outer wall of the rotating shaft is provided with a static pressure component.

[0007] Furthermore, the static pressure component includes an arc fan fixedly connected to the outer wall of one end of the rotating shaft near the cross sleeve, four bent plates are fixedly connected to the top of the arc fan, a porous plate is fixedly connected to the top of the bent plate, and a conical plate is fixedly connected to the bottom of the bent plate.

[0008] Furthermore, a lifting assembly is provided at one end of the conical plate, a side wall at one end of the lifting assembly contacts a sliding frame, one end of the sliding frame passes through the inner shell and extends to the interior of the outer shell, a side wall at one end of the sliding frame is fixedly connected to a spring, and one end of the spring is fixedly connected to one side of the inner wall of the outer shell.

[0009] Furthermore, the top of the sliding frame is rotatably connected to a rotating plate, the top of the rotating plate is rotatably connected to a lifting ring, the outer wall of the lifting ring is slidably connected to the inner wall of the outer shell, and the bottom of the sliding frame is fixedly connected to an L-shaped rod, one end of the L-shaped rod passes through the outer shell and extends to the inside of the inner shell.

[0010] Furthermore, a filter assembly is provided on the inner wall of the inner shell, and the filter assembly includes a fixing frame fixedly connected to the inner wall of the inner shell, a filter net on the top of the inner wall of the fixing frame, and an end of the L-shaped rod away from the sliding frame is fixedly connected to a square shell, the square shell is arranged inside the inner shell, and one side of the inner wall of the square shell is connected to a connecting pipe.

[0011] Furthermore, one end of the connecting pipe passes through the square shell and extends to the outside of the L-shaped rod. The top two sides of the square shell are respectively connected to the exhaust hoppers. The bottom two sides of the inner wall of the square shell are respectively fixedly connected with tension springs. The top of the tension spring is fixedly connected with a sealing plate. The sealing plate is arranged inside the exhaust hopper. The top of the sealing plate is fixedly connected with a rubber rod.

[0012] Furthermore, a polyurethane bent rod is fixedly connected to the top of the sealing plate near the rubber rod, special-shaped tubes are respectively connected to both sides of the square shell, a sealing ball is fixedly connected to one end of the polyurethane bent rod away from the sealing plate, the sealing ball is arranged inside the special-shaped tube, and a tooth plate is fixedly connected to the top center of the square shell, and the top of the tooth plate is contacted with the bottom of the filter screen.

[0013] Furthermore, an auxiliary component is provided at the bottom of the lifting ring, and the auxiliary component includes four concave rods fixedly connected around the bottom of the lifting ring, one end of the concave rod passes through the working shell and extends to the interior of the inner shell, and the end of the concave rod away from the lifting ring is fixedly connected to an annular plate, and four extrusion blocks are fixedly connected around the bottom of the annular plate close to the concave rod, and four vertical rods are respectively provided around the top of the annular plate.

[0014] Furthermore, one end of the vertical rod passes through the conical plate and extends to the outside of the bent plate, the top of the vertical rod is fixedly connected to the horizontal plate, the top of the horizontal plate passes through and is slidably connected to three impact rods, the bottom end side wall of the impact rod is fixedly connected to a return spring, and the top of the return spring is fixedly connected to the bottom of the horizontal plate.

[0015] A method for using an ultra-precision air static pressure servo turntable comprises the following steps:

[0016] Step 1: Start the air pump, which injects air pressure into the air pipe, and the air pressure enters the inner shell through the air pipe;

[0017] Step 2: Through the leak setting of the porous plate, the air pressure enters the circular holes of the porous plate through the inner shell, and the air pressure is ejected toward the top of the turntable through the circular holes of the porous plate;

[0018] Step 3: Start the motor, the motor drives the rotating shaft to rotate, the rotating shaft drives the cross sleeve to rotate, the cross sleeve drives the turntable to rotate, and the rotating shaft drives the arc fan to rotate;

[0019] Step 4: When the arc fan rotates, the arc fan drives the curved plate to rotate, and the curved plate drives the porous plate to rotate.

[0020] The present invention has the following beneficial effects:

[0021] (1) The present invention starts the air pump, which injects air pressure into the interior of the air pipe. The air pressure enters the interior of the inner shell through the air pipe, and enters the circular holes of the porous plate through the inner shell through the leakage hole setting of the porous plate. The air pressure is sprayed toward the top of the turntable through the circular holes of the porous plate, so that the turntable is continuously suspended on the top of the outer shell. At the same time, the motor is started, the motor drives the rotating shaft to rotate, the rotating shaft drives the cross sleeve to rotate, the cross sleeve drives the turntable to rotate, so that the turntable is suspended and rotated, and the turntable is rotated with high precision. At the same time, the rotating shaft drives the arc fan to rotate, and the arc fan generates airflow, thereby improving the strength of the air pressure. When the arc fan rotates, the arc fan drives the bent plate to rotate, and the bent plate drives the porous plate to rotate. During the rotation of the porous plate, the airflow can be sprayed to the bottom of the turntable in all directions, thereby improving the stability of the air pressure suspended turntable.

[0022] (2) According to the present invention, when the bent plate rotates, the bent plate drives the conical plate to rotate. During the rotation of the conical plate, the conical plate contacts one end of the sliding frame, causing the sliding frame to move toward the inside of the shell. The sliding frame drives the L-shaped rod to move. The L-shaped rod drives the square shell to move. The square shell drives the tooth plate to move. During the movement of the tooth plate, the tooth plate contacts the filter screen, thereby scraping the bottom of the filter screen, causing the filter screen to vibrate, and causing dust particles adhering to the bottom of the filter screen to fall off. At the same time, the sliding frame drives the rotating plate to move. Limited by the shell, the rotating plate drives the lifting ring to move upward. During the upward movement of the lifting ring, negative pressure can be generated at the bottom of the inner wall of the shell. The negative pressure enters the inside of the connecting pipe, enters the inside of the square shell through the connecting pipe, and enters the inside of the special-shaped pipe through the square shell. The negative pressure absorbs the dust particles dropped from the filter screen through the special-shaped pipe, causing the dust particles to enter the inner bottom of the shell and mix with the water at the inner bottom of the shell, thereby reducing the number of dust particles adhering to the bottom of the filter screen again, improving the flowability of the airflow, and improving the suspension rotation stability of the turntable.

[0023] (3) In the present invention, when the conical plate is no longer in contact with the sliding frame, it is elastically deformed by the spring, and the spring drives the sliding frame to move. One end of the sliding frame moves toward the inside of the inner shell, and the sliding frame drives the rotating plate to move. The rotating plate drives the lifting ring to descend. During the descent of the lifting ring, the air pressure inside the outer shell enters the inside of the connecting pipe, and the air pressure enters the inside of the square shell through the connecting pipe. The air pressure enters the inside of the exhaust hopper through the square shell, and the air pressure is discharged to the outside through the exhaust hopper, and the dust particles at the bottom of the filter are jetted and cleaned. The sealing plate drives the rubber rod to move upward. During the upward movement of the rubber rod, it will hit the bottom of the filter, causing the dust particles adhered to the filter to fall off, and the air pressure causes the sealing plate to move upward. The sealing plate drives the polyurethane bent rod to move upward, causing the polyurethane bent rod to be stretched, and the polyurethane bent rod drives the sealing ball to move, so that the sealing ball can be closely fitted with the inner wall of the special-shaped pipe, so that the air pressure can enter the inside of the exhaust hopper more stably, preventing the air pressure from leaking, and improving the stability of the air pressure.

[0024] (4) In the present invention, when the lifting ring moves downward, the lifting ring drives the concave rod to move, the concave rod drives the annular plate to move, and the annular plate drives the extrusion block to move downward, so that the extrusion block squeezes the top of the filter screen, thereby increasing the fitting distance between the filter screen and the tooth plate, and preventing dust particles from clogging the leakage holes of the filter screen from the side. When the lifting ring moves upward, the lifting ring drives the concave rod to move upward, the concave rod drives the annular plate to move upward, and the annular plate will contact the bottom of the vertical rod during the upward movement, so that the vertical rod moves upward, the vertical rod drives the horizontal plate to move upward, and the horizontal plate drives the impact rod to move upward. During the upward movement of the impact rod, the bottom of the porous plate will be impacted, causing a small amount of dust particles attached to the bottom of the porous plate to fall off, and then the dust particles are entrained by the air pressure and discharged outward, thereby preventing the dust particles from clogging the circular holes of the porous plate, and further improving the stability of the turntable suspended by the air pressure.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall side structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention;

[0030] Figure 4 This is a bottom view of the structure of the extrusion block of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the L-shaped rod part of the present invention;

[0032] Figure 6 This is a schematic diagram of the explosion structure of the turntable of the present invention;

[0033] Figure 7 For the present invention Figure 3 A magnified view of middle;

[0034] Figure 8 For the present invention Figure 6 Enlarged view of middle B;

[0035] Fig. 9 The figure is a flow chart of the method for using the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] In the figure: 1, working shell; 2, inner shell; 3, outer shell; 4, air pipe; 5, air static pressure mechanism; 51, motor; 52, rotating shaft; 53, cross sleeve; 54, turntable; 55, static pressure assembly; 56, lifting assembly; 57, filter assembly; 58, auxiliary assembly; 551, arc fan; 552, bent plate; 553, porous plate; 554, conical plate; 561, sliding frame; 562, spring; 563, rotating plate; 564, lifting ring; 565, L-shaped rod; 571, fixing frame; 572, filter screen; 573, square shell; 574, connecting pipe; 575, exhaust bucket; 576, tension spring; 577, blocking plate; 578, rubber rod; 579, polyurethane bent rod; 5710, special-shaped pipe; 5711, sealing ball; 5712, tooth plate; 581, concave rod; 582, annular plate; 583, extrusion block; 584, vertical rod; 585, horizontal plate; 586, impact rod; 587, reset spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1 - Fig. 9As shown, the present invention is an ultra-precision air static pressure servo turntable and a method of using the same, comprising a working shell 1, the top of the working shell 1 is fixedly connected to an inner shell 2, the outer wall of the inner shell 2 is fixedly connected to an outer shell 3, one side of the inner wall of the inner shell 2 is connected to an air pipe 4, one end of the air pipe 4 passes through the inner shell 2 and extends to the outside of the outer shell 3, and further comprising;

[0040] The air static pressure mechanism 5 includes a motor 51 fixedly connected to the bottom of the inner wall of the working shell 1, and the output end of the motor 51 is fixedly connected to a rotating shaft 52. One end of the rotating shaft 52 passes through the working shell 1 and extends to the outside of the inner shell 2. A cross sleeve 53 is fixedly connected to the outer wall of the top end of the rotating shaft 52. The outer wall of the cross sleeve 53 contacts a turntable 54. The outer wall of the rotating shaft 52 is provided with a static pressure component 55.

[0041] The static pressure assembly 55 includes an arc fan 551 fixedly connected to the outer wall of one end of the rotating shaft 52 near the cross sleeve 53, four bent plates 552 are fixedly connected to the top of the arc fan 551, and a porous plate 553 is fixedly connected to the top of the bent plate 552. The air pump is started, and the air pump injects air pressure into the interior of the air pipe 4. The air pressure enters the interior of the inner shell 2 through the air pipe 4, and enters the circular hole of the porous plate 553 through the leakage hole setting of the porous plate 553 through the inner shell 2. The air pressure is ejected toward the top of the turntable 54 through the circular hole of the porous plate 553, so that the turntable 54 is continuously suspended on the top of the outer shell 3, and the motor 51 is started at the same time, and the motor 51 drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the cross sleeve 53 to rotate, and the cross sleeve 53 drives the turntable 54 to rotate, so that the turntable 54 is suspended and rotated, and the turntable 54 is rotated with high precision. The bottom of the curved plate 552 is fixedly connected with a conical plate 554, and the rotating shaft 52 drives the arc fan 551 to rotate. The arc fan 551 generates airflow, thereby increasing the strength of the air pressure. When the arc fan 551 rotates, the arc fan 551 drives the curved plate 552 to rotate, and the curved plate 552 drives the porous plate 553 to rotate. During the rotation of the porous plate 553, the airflow can be sprayed to the bottom of the turntable 54 in all directions, thereby improving the stability of the air pressure suspension turntable 54.

[0042] A lifting assembly 56 is provided at one end of the conical plate 554, and a side wall at one end of the lifting assembly 56 contacts a sliding frame 561, one end of the sliding frame 561 passes through the inner shell 2 and extends to the interior of the outer shell 3, and a side wall at one end of the sliding frame 561 is fixedly connected to a spring 562, and one end of the spring 562 is fixedly connected to one side of the inner wall of the outer shell 3.

[0043] The top of the sliding frame 561 is rotatably connected to a rotating plate 563, the top of the rotating plate 563 is rotatably connected to a lifting ring 564, the outer wall of the lifting ring 564 is slidably connected to the inner wall of the outer shell 3, and the bottom of the sliding frame 561 is fixedly connected to an L-shaped rod 565, one end of the L-shaped rod 565 passes through the outer shell 3 and extends to the interior of the inner shell 2.

[0044] A filter assembly 57 is provided on the inner wall of the inner shell 2, and the filter assembly 57 includes a fixing frame 571 fixedly connected to the inner wall of the inner shell 2, a filter net 572 on the top of the inner wall of the fixing frame 571, and an end of the L-shaped rod 565 away from the sliding frame 561 is fixedly connected to a square shell 573, the square shell 573 is arranged inside the inner shell 2, and one side of the inner wall of the square shell 573 is connected to a connecting pipe 574.

[0045] One end of the connecting pipe 574 passes through the square shell 573 and extends to the outside of the L-shaped rod 565. The top two sides of the square shell 573 are connected to the exhaust bucket 575 respectively. The inner wall bottom two sides of the square shell 573 are fixedly connected to the extension spring 576 respectively. The top of the extension spring 576 is fixedly connected to the plugging plate 577. The plugging plate 577 is arranged inside the exhaust bucket 575. The top of the plugging plate 577 is fixedly connected to the rubber rod 578. When the conical plate 554 is no longer in contact with the sliding frame 561, it is elastically deformed by the spring 562, and the spring 562 drives the sliding frame The frame 561 moves, one end of the sliding frame 561 moves toward the interior of the inner shell 2, the sliding frame 561 drives the rotating plate 563 to move, the rotating plate 563 drives the lifting ring 564 to descend, and during the descent of the lifting ring 564, the air pressure inside the outer shell 3 enters the interior of the connecting pipe 574, the air pressure enters the interior of the square shell 573 through the connecting pipe 574, the air pressure enters the interior of the exhaust hopper 575 through the square shell 573, and the air pressure is discharged to the outside through the exhaust hopper 575 to clean the dust particles at the bottom of the filter 572 by jetting.

[0046] The sealing plate 577 is fixedly connected to the top of the rubber rod 578 with a polyurethane bent rod 579. The polyurethane bent rod 579 is made of polyurethane and has excellent elasticity and wear resistance and can withstand large stretching and deformation. The two sides of the square shell 573 are respectively connected with special-shaped tubes 5710. The end of the polyurethane bent rod 579 away from the sealing plate 577 is fixedly connected with a sealing ball 5711, and the sealing ball 5711 is arranged inside the special-shaped tube 5710. The top center of the square shell 573 is fixedly connected with a tooth plate 5712. The top contact of the tooth plate 5712 is arranged at the bottom of the filter screen 572. The lifting ring During the upward movement of 564, negative pressure can be generated at the bottom of the inner wall of the outer shell 3, and the negative pressure enters into the interior of the connecting pipe 574, and then enters into the interior of the square shell 573 through the connecting pipe 574, and then enters into the interior of the special-shaped tube 5710 through the square shell 573. The negative pressure absorbs the dust particles dropped from the filter 572 through the special-shaped tube 5710, so that the dust particles enter into the inner bottom of the outer shell 3 and mix with the water at the inner bottom of the outer shell 3, thereby reducing a large number of dust particles from adhering to the bottom of the filter 572 again, improving the gas flowability, and laterally improving the suspension and rotation stability of the turntable 54.

[0047] An auxiliary component 58 is provided at the bottom of the lifting ring 564, and the auxiliary component 58 includes four concave rods 581 fixedly connected around the bottom of the lifting ring 564, one end of the concave rod 581 penetrates the working shell 1 and extends to the interior of the inner shell 2, and the end of the concave rod 581 away from the lifting ring 564 is fixedly connected to an annular plate 582, and four extrusion blocks 583 are fixedly connected around the bottom of the annular plate 582 close to the concave rod 581, and four vertical rods 584 are respectively provided around the top of the annular plate 582.

[0048] One end of the vertical rod 584 passes through the conical plate 554 and extends to the outside of the curved plate 552. The top of the vertical rod 584 is fixedly connected to the horizontal plate 585. The top of the horizontal plate 585 passes through and is slidably connected to three impact rods 586. The bottom side wall of the impact rod 586 is fixedly connected to a reset spring 587. The purpose of this arrangement is to facilitate reset. The top of the reset spring 587 is fixedly connected to the bottom of the horizontal plate 585. When the lifting ring 564 moves up, the lifting ring 564 drives the concave rod 581 to move up, and the concave rod 581 drives the annular plate 582 to move up. During the upward movement of the annular plate 582, it will come into contact with the bottom of the vertical rod 584, causing the vertical rod 584 to move upward, and the vertical rod 584 will drive the horizontal plate 585 to move upward, and the horizontal plate 585 will drive the impact rod 586 to move upward. During the upward movement of the impact rod 586, it will impact the bottom of the porous plate 553, causing a small amount of dust particles attached to the bottom of the porous plate 553 to fall off, and then the dust particles are entrained by the air pressure and discharged outward, preventing the dust particles from clogging the circular holes of the porous plate 553, further improving the stability of the air pressure-driven turntable 54 suspension.

[0049] A method for using an ultra-precision air static pressure servo turntable comprises the following steps:

[0050] Step 1: Start the air pump, the air pump injects air pressure into the air pipe 4, and the air pressure enters the inner shell 2 through the air pipe 4;

[0051] Step 2: Through the leak setting of the porous plate 553, the air pressure enters the circular hole of the porous plate 553 through the inner shell 2, and the air pressure is ejected toward the top of the turntable 54 through the circular hole of the porous plate 553;

[0052] Step 3: Start the motor 51, the motor 51 drives the rotating shaft 52 to rotate, the rotating shaft 52 drives the cross sleeve 53 to rotate, the cross sleeve 53 drives the turntable 54 to rotate, and the rotating shaft 52 drives the arc fan 551 to rotate;

[0053] Step 4: When the arc-shaped fan 551 rotates, the arc-shaped fan 551 drives the curved plate 552 to rotate, and the curved plate 552 drives the porous plate 553 to rotate.

[0054] When in use, the air pump is started, and the air pump injects air pressure into the air pipe 4. The air pressure enters the interior of the inner shell 2 through the air pipe 4, and enters the circular holes of the porous plate 553 through the leak hole setting of the porous plate 553 through the inner shell 2. The air pressure is sprayed toward the top of the turntable 54 through the circular holes of the porous plate 553, so that the turntable 54 is continuously suspended on the top of the outer shell 3. At the same time, the motor 51 is started, and the motor 51 drives the rotating shaft 52 to rotate, and the rotating shaft 52 drives the cross sleeve 53 to rotate, and the cross sleeve 53 drives the turntable 54 The turntable 54 is rotated so that it can be suspended and rotated, and the turntable 54 can be rotated with high precision. At the same time, the rotating shaft 52 drives the arc fan 551 to rotate, and the arc fan 551 generates airflow, thereby increasing the strength of the air pressure. When the arc fan 551 rotates, the arc fan 551 drives the curved plate 552 to rotate, and the curved plate 552 drives the porous plate 553 to rotate. During the rotation of the porous plate 553, the airflow can be sprayed to the bottom of the turntable 54 in all directions, thereby improving the stability of the air pressure suspended turntable 54.

[0055] When the curved plate 552 rotates, the curved plate 552 drives the conical plate 554 to rotate. During the rotation of the conical plate 554, it contacts one end of the sliding frame 561, so that the sliding frame 561 moves toward the inside of the shell 3. The sliding frame 561 drives the L-shaped rod 565 to move, the L-shaped rod 565 drives the square shell 573 to move, and the square shell 573 drives the tooth plate 5712 to move. During the movement of the tooth plate 5712, it contacts the filter screen 572, thereby scraping the bottom of the filter screen 572, causing the filter screen 572 to vibrate, and the dust particles adhered to the bottom of the filter screen 572 fall off. At the same time, the sliding frame 561 drives the rotating plate 563 to move, which is affected by the external The shell 3 is limited, and the rotating plate 563 drives the lifting ring 564 to move upward. During the upward movement of the lifting ring 564, negative pressure can be generated at the bottom of the inner wall of the shell 3. The negative pressure enters the interior of the connecting pipe 574, and the negative pressure enters the interior of the square shell 573 through the connecting pipe 574. The negative pressure enters the interior of the special-shaped tube 5710 through the square shell 573. The negative pressure absorbs the dust particles dropped from the filter screen 572 through the special-shaped tube 5710, so that the dust particles enter the inner bottom of the shell 3 and mix with the water at the inner bottom of the shell 3, thereby reducing a large number of dust particles from adhering to the bottom of the filter screen 572 again, improving the fluidity of the airflow, and improving the suspension and rotation stability of the turntable 54 from the side.

[0056] When the conical plate 554 is no longer in contact with the sliding frame 561, it is elastically deformed by the spring 562, and the spring 562 drives the sliding frame 561 to move. One end of the sliding frame 561 moves toward the inside of the inner shell 2, and the sliding frame 561 drives the rotating plate 563 to move. The rotating plate 563 drives the lifting ring 564 to descend. During the descent of the lifting ring 564, the air pressure inside the outer shell 3 enters the inside of the connecting pipe 574, and the air pressure enters the inside of the square shell 573 through the connecting pipe 574. The air pressure enters the inside of the exhaust hopper 575 through the square shell 573, and the air pressure is discharged to the outside through the exhaust hopper 575, which affects the bottom of the filter 572. Dust particles are cleaned by jetting, and the sealing plate 577 drives the rubber rod 578 to move upward. During the upward movement of the rubber rod 578, it will hit the bottom of the filter 572, causing the dust particles adhered to the filter 572 to fall off, and the air pressure causes the sealing plate 577 to move upward, and the sealing plate 577 drives the polyurethane bent rod 579 to move upward, so that the polyurethane bent rod 579 is stretched, and the polyurethane bent rod 579 drives the sealing ball 5711 to move, so that the sealing ball 5711 can fit tightly with the inner wall of the special-shaped tube 5710, so that the air pressure can enter the interior of the exhaust bucket 575 more stably, prevent the air pressure from leaking, and improve the stability of the air pressure.

[0057] When the lifting ring 564 moves downward, the lifting ring 564 drives the concave rod 581 to move, the concave rod 581 drives the annular plate 582 to move, and the annular plate 582 drives the extrusion block 583 to move downward, so that the extrusion block 583 squeezes the top of the filter screen 572, thereby increasing the fitting distance between the filter screen 572 and the tooth plate 5712, and preventing dust particles from clogging the leakage holes of the filter screen 572 on the side. When the lifting ring 564 moves upward, the lifting ring 564 drives the concave rod 581 to move upward, and the concave rod 581 drives the annular plate 582 to move upward. During the upward movement, the annular plate 582 will come into contact with the bottom of the vertical rod 584, causing the vertical rod 584 to move upward, and the vertical rod 584 will drive the horizontal plate 585 to move upward, and the horizontal plate 585 will drive the impact rod 586 to move upward. During the upward movement, the impact rod 586 will impact the bottom of the porous plate 553, causing a small amount of dust particles attached to the bottom of the porous plate 553 to fall off, and then the dust particles are entrained by the air pressure and discharged outward, preventing the dust particles from clogging the circular holes of the porous plate 553, thereby further improving the stability of the air pressure-driven turntable 54 suspension.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An ultra-precision air static pressure servo turntable, characterized in that: The invention comprises a working shell (1), the top of the working shell (1) is fixedly connected to an inner shell (2), the outer wall of the inner shell (2) is fixedly connected to an outer shell (3), one side of the inner wall of the inner shell (2) is connected to an air pipe (4), one end of the air pipe (4) passes through the inner shell (2) and extends to the outside of the outer shell (3), and further comprises: An air static pressure mechanism (5), the air static pressure mechanism (5) comprising a motor (51) fixedly connected to the bottom of the inner wall of the working shell (1), the output end of the motor (51) being fixedly connected to a rotating shaft (52), one end of the rotating shaft (52) passing through the working shell (1) and extending to the outside of the inner shell (2), a cross sleeve (53) being fixedly connected to the outer wall of the top end of the rotating shaft (52), the outer wall of the cross sleeve (53) being in contact with a turntable (54), and a static pressure component (55) being provided on the outer wall of the rotating shaft (52); The static pressure assembly (55) comprises an arc-shaped fan (551) fixedly connected to the outer wall of one end of the rotating shaft (52) close to the cross sleeve (53), four bent plates (552) are fixedly connected to the top and four sides of the arc-shaped fan (551), a porous plate (553) is fixedly connected to the top of the bent plate (552), and a conical plate (554) is fixedly connected to the bottom of the bent plate (552); A lifting assembly (56) is provided at one end of the conical plate (554); a side wall at one end of the lifting assembly (56) contacts a sliding frame (561); one end of the sliding frame (561) passes through the inner shell (2) and extends into the interior of the outer shell (3); a side wall at one end of the sliding frame (561) is fixedly connected to a spring (562); one end of the spring (562) is fixedly connected to one side of the inner wall of the outer shell (3); The top of the sliding frame (561) is rotatably connected to a rotating plate (563), the top of the rotating plate (563) is rotatably connected to a lifting ring (564), the outer wall of the lifting ring (564) is slidably connected to the inner wall of the outer shell (3), and the bottom of the sliding frame (561) is fixedly connected to an L-shaped rod (565), one end of the L-shaped rod (565) passes through the outer shell (3) and extends to the interior of the inner shell (2); The inner wall of the inner shell (2) is provided with a filter assembly (57), the filter assembly (57) comprising a fixing frame (571) fixedly connected to the inner wall of the inner shell (2), a filter screen (572) at the top of the inner wall of the fixing frame (571), one end of the L-shaped rod (565) away from the sliding frame (561) is fixedly connected to a square shell (573), the square shell (573) is arranged inside the inner shell (2), and one side of the inner wall of the square shell (573) is connected to a connecting pipe (574); One end of the connecting pipe (574) passes through the square shell (573) and extends to the outside of the L-shaped rod (565); both sides of the top of the square shell (573) are respectively connected to the exhaust hopper (575); both sides of the bottom of the inner wall of the square shell (573) are respectively fixedly connected to the tension spring (576); the top of the tension spring (576) is fixedly connected to a blocking plate (577); the blocking plate (577) is arranged inside the exhaust hopper (575); and the top of the blocking plate (577) is fixedly connected to a rubber rod (578).

2. The ultra-precision air static pressure servo turntable according to claim 1, characterized in that: A polyurethane bent rod (579) is fixedly connected to the top of the sealing plate (577) near the rubber rod (578); two sides of the square shell (573) are respectively connected to special-shaped tubes (5710); one end of the polyurethane bent rod (579) away from the sealing plate (577) is fixedly connected to a sealing ball (5711); the sealing ball (5711) is arranged inside the special-shaped tube (5710); a tooth plate (5712) is fixedly connected to the center of the top of the square shell (573); the top of the tooth plate (5712) is arranged to contact the bottom of the filter screen (572).

3. The ultra-precision air static pressure servo turntable according to claim 2, characterized in that: An auxiliary component (58) is provided at the bottom of the lifting ring (564), and the auxiliary component (58) comprises four concave rods (581) fixedly connected to the bottom of the lifting ring (564) at four sides, one end of the concave rod (581) passes through the working shell (1) and extends into the interior of the inner shell (2), one end of the concave rod (581) away from the lifting ring (564) is fixedly connected to an annular plate (582), four extrusion blocks (583) are fixedly connected to the bottom of the annular plate (582) near the concave rod (581), and four vertical rods (584) are respectively provided in contact with the top of the annular plate (582).

4. The ultra-precision air static pressure servo turntable according to claim 3, characterized in that: One end of the vertical rod (584) passes through the conical plate (554) and extends to the outside of the bent plate (552); the top of the vertical rod (584) is fixedly connected to a horizontal plate (585); the top of the horizontal plate (585) passes through and is slidably connected to three impact rods (586); the bottom end side walls of the impact rods (586) are fixedly connected to a return spring (587); the top of the return spring (587) is fixedly connected to the bottom of the horizontal plate (585).

5. A method for using an ultra-precision air static pressure servo turntable, using the ultra-precision air static pressure servo turntable as claimed in claim 4, characterized in that: The following steps are included: Step 1: Start the air pump, which injects air pressure into the interior of the air pipe (4), and the air pressure enters the interior of the inner shell (2) through the air pipe (4); Step 2: through the leak hole setting of the porous plate (553), the air pressure enters the circular hole of the porous plate (553) through the inner shell (2), and the air pressure is ejected toward the top of the turntable (54) through the circular hole of the porous plate (553); Step 3: starting the motor (51), the motor (51) drives the rotating shaft (52) to rotate, the rotating shaft (52) drives the cross sleeve (53) to rotate, the cross sleeve (53) drives the turntable (54) to rotate, and the rotating shaft (52) drives the arc fan (551) to rotate; Step 4: When the arc-shaped fan (551) rotates, the arc-shaped fan (551) drives the curved plate (552) to rotate, and the curved plate (552) drives the porous plate (553) to rotate.

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