A rotating stage and polishing device

Abstract

This invention relates to the field of metal polishing technology and discloses a rotating stage and polishing device. It solves the problem that existing stages struggle to simultaneously securely fix and easily adjust metal covers, hindering the polishing of the metal cover in a preset state and thus affecting polishing accuracy. By using two and three support rings to provide low-friction support for the stationary metal cover, friction is less restrictive when the metal cover's orientation needs adjustment, facilitating adjustment of its position. After the metal cover is adjusted to the preset state, the rotating stage is activated. The counterweight, under centrifugal force, actively pulls down the pull ring, causing the rubber diaphragm to deform downwards. This creates negative pressure in the enclosed space inside the support cover, firmly adsorbing and fixing the metal cover to the upper side of the support cover.

Description

Technical Field

[0001] This invention relates to the field of metal polishing technology, specifically to a rotating stage and a polishing device. Background Technology

[0002] In polishing the inner wall of a hemispherical metal cover (such as a metal cookware), a stage and polishing wheels are typically used. The stage holds the metal cover in place and rotates it coaxially, while the polishing wheels polish the rotating inner wall of the metal cover. During the rotation of the metal cover, surfaces of the same circumference on its inner wall lie on the same rotation path. Multiple polishing wheels are usually used, each corresponding to a different rotating surface of the inner wall of the metal cover, and their surfaces are fitted together in an arc. By polishing different circumferential surfaces of the inner wall of the metal cover with multiple polishing wheels, the entire inner surface is covered.

[0003] The stage has grooves on its inner side that fit the outer surface of the metal cover, and these grooves are lined with friction material (such as rubber pads). When the stage rotates, the friction material contacts the metal cover, causing it to rotate with the stage through friction. However, the metal cover is relatively lightweight, so the coefficient of friction and contact area between the friction material and the metal cover need to be increased to ensure sufficient friction. This design also introduces a new problem: after the metal cover is placed in the groove, it needs to be aligned to ensure that the same circumferential surface of the inner wall of the metal cover is on the same rotation path. If the static friction between the metal cover and the friction material is too high, aligning the metal cover becomes significantly more difficult. Insufficient alignment will cause the metal cover to wobble during rotation, resulting in uneven contact between the polishing wheel and the inner wall of the metal cover, thus affecting polishing accuracy.

[0004] Conversely, if the static friction between the metal cover and the friction material is insufficient, the metal cover will be unstable when the stage rotates. Under high-speed rotation and the grinding action of the polishing wheel, the metal cover is prone to displacement, which will also affect the polishing accuracy. Therefore, existing stages cannot simultaneously meet the requirements of secure fixation and easy adjustment when fixing the metal cover. This prevents the metal cover from being polished by the polishing wheel in the preset state, thus seriously affecting the polishing accuracy of the inner wall of the metal cover. Summary of the Invention

[0005] The purpose of this invention is to provide a rotating stage and a polishing device, which solves the problem that existing stages are difficult to assemble with metal covers, making it difficult to simultaneously ensure both secure fixation and easy calibration, and making it inconvenient for the metal cover to be polished by the polishing wheel in a preset state, thus affecting the polishing accuracy of the metal cover.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotating stage, comprising:

[0007] A rotating platform, with a motor on its underside that drives its rotation;

[0008] The suction cup assembly is coaxially mounted on the upper side of the rotating platform. The suction cup assembly includes a ring-shaped support cover. The two upper edges of the upper side of the support cover are respectively fitted with support ring two and support ring three. The radius and position of support ring two and support ring three are adapted to and sealed to the lower surface of the metal cover in a preset state. A rubber membrane is also sealed on the lower side of the support cover. A pull ring is provided on the lower side of the rubber membrane. The pull ring pulls the rubber membrane to deform downward.

[0009] A pulling mechanism is coaxially mounted on the upper side of a rotating platform. The pulling mechanism includes a fixed base, a rotating frame rotatably mounted on the edge of the fixed base, a counterweight connected to one end of the rotating frame, a tension spring on one side of the rotating frame that pulls it to be retracted to the side of the fixed base, and a pulling assembly for pulling down the pull ring at the other end of the rotating frame. The pulling assembly is driven by the centrifugal oscillation of the rotating frame when the rotating platform rotates.

[0010] Support rings two and three support rings support the metal cover in a stationary state with low friction. When the turntable rotates, the pulling mechanism pulls the ring, forcing the metal cover to be further fixed on the upper side of the support cover through negative pressure.

[0011] As a further description of the above technical solution: the rotating frame is rotatably assembled on the fixed base via a rotating ring fixedly connected at one end. The pulling component includes a brake line provided on one side of the rotating ring. A pull block is fixedly provided on the arc surface of the rotating ring. One end of the core of the brake line is fixedly connected to the outer end of the pull block, and the other end is used to drive the pull ring to move downward.

[0012] As a further description of the above technical solution: the arc surface of the rotating ring is also fixedly provided with a second pull block, and one end of the tension spring is fixedly connected to the outer end of the second pull block;

[0013] Multiple rotating frames are provided and are circumferentially distributed on the upper surface of the fixed base.

[0014] As a further description of the above technical solution: a gear ring 1 is coaxially fixedly connected to the lower side of the rotating ring, and a gear ring 2 is rotatably mounted on the upper side of the fixed seat, and the gear ring 2 meshes with multiple gear rings 1 simultaneously.

[0015] As a further description of the above technical solution: the lifting cover is fixedly connected to a support frame on its outer surface, and multiple support frames are provided to fix the lifting cover above the rotating platform.

[0016] As a further description of the above technical solution: the upper surface of the rotating platform is provided with an outer cover that covers the inner side of the lifting cover, and a support ring is fixedly sleeved on the upper edge of the outer cover. The support ring is adapted and fitted to the outer edge of the metal cover in a preset state.

[0017] As a further description of the above technical solution: the upper edge of the outer cover is provided with a calibration component for calibrating the metal cover, and at least three calibration components are provided and distributed circumferentially;

[0018] The support frame is equipped with a control component, which is connected to one end of the brake line. Under the pull of the brake line, the control component first drives the calibration component, and then drives the pull ring.

[0019] Each of the aforementioned brake lines, support frame, control components, and calibration components corresponds to one another.

[0020] As a further description of the above technical solution: the calibration component includes a sleeve fixedly mounted on the upper edge of the outer cover, a pull rod movably disposed inside the sleeve, a tension spring II for pulling the pull rod upward is fixedly disposed on the lower surface of the sleeve, and a pressure block is fixedly connected to the upper end of the pull rod;

[0021] Driven by the control components, the multiple pull rods move downwards and push the upper edge of the metal cover through the pressure block.

[0022] As a further description of the above technical solution: the control component includes a crossbar, one end of which is connected to the lower end of a pull rod via a pull rope one, and the other end of which is connected to the lower surface of a pull ring via a pull rope two. One end of the core of the brake cable is connected to the lower surface of the crossbar, with its connection position close to the pull rope one. A rotating column is also connected to the side surface of the crossbar near the end of the pull rope one. A limit plate is fixedly connected to one side of the support frame, and a limit groove is provided on the surface of the limit plate to guide the movement range of the rotating column.

[0023] A polishing apparatus includes a reversing mechanism and a grinding mechanism;

[0024] The reversing mechanism includes a rotating seat rotatably mounted on the machine base, a rotating arm fixedly provided on the rotating shaft surface of the rotating seat, and an electric cylinder connected to the outer end of the rotating arm to drive its rotation.

[0025] The grinding mechanism is provided in multiple ways and distributed around the rotating seat. The grinding mechanism includes a hinge frame. A motor is fixedly mounted on the rotating plate on the upper side of the hinge frame. A fixed plate on the lower side of the hinge frame is fixedly mounted on the machine base. An electric cylinder is provided on one side of the fixed plate to push the rotating plate to rotate. The output end of the motor is connected to a grinding wheel. The friction surface of the grinding wheel is movably adapted to fit and fit against a preset position on the inner surface of the metal cover.

[0026] The rotating base is equipped with a rotating platform.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. When the lifting cover is stationary, the metal cover is supported by only the second and third support rings with low friction. This means that when the metal cover is tilted and needs to be adjusted, the friction is less restrictive, making it easier to adjust the position of the metal cover. After the metal cover is adjusted to the preset position, the rotating table is started to rotate. The counterweight actively pulls down the pull ring under the action of centrifugal force, causing the rubber diaphragm to deform downwards. This creates a negative pressure in the closed space inside the lifting cover, thereby firmly adsorbing and fixing the metal cover to the upper side of the lifting cover.

[0029] 2. As the rotation speed of the turntable increases, the centrifugal force of the counterweight increases, generating greater mechanical energy to drive the pulling component. This increases the pulling force on the pull ring and the deformation of the rubber diaphragm, thereby enhancing the negative pressure suction of the lifting cover, ensuring the stability of the metal cover under high-speed rotation and strengthening the fixing effect.

[0030] 3. After polishing is completed, when the rotating table stops rotating, the rotating frame is reset under the pull of the tension spring. The pulling force of the pulling component on the pull ring gradually decreases to the initial state, the deformation of the rubber diaphragm is restored, and the negative pressure suction of the lifting cover on the metal cover is automatically reduced. This process simplifies the operation and improves the unloading efficiency of the polished metal cover.

[0031] 4. When the rotating platform rotates, the pulling mechanism causes multiple brake lines to move in the same direction, and the horizontal bar moves synchronously. Before the lifting cover generates negative pressure, multiple pressure blocks descend to the preset height first, automatically calibrating the metal cover. After calibration, the rubber membrane is automatically deformed to enhance the negative pressure suction and firmly adsorb the metal cover. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the overall side view structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the rotating stage and metal cover structure of the present invention;

[0035] Figure 4 This is a schematic cross-sectional view of the rotating platform and metal cover of the present invention.

[0036] Figure 5 This is a schematic cross-sectional view of the rotating platform structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the rotating platform of the present invention.

[0038] Figure 7 This is a schematic diagram showing the state in which the support ring, suction cup assembly, and metal cover of the present invention are attached.

[0039] Figure 8This is a schematic diagram of the pulling mechanism structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the rotating frame structure of the present invention;

[0041] Figure 10 This is a schematic diagram of the calibration component and control component of the present invention.

[0042] In the diagram: 10. Rotating table; 11. Outer cover; 12. Support ring 1; 13. Motor 1;

[0043] 20. Suction cup assembly; 21. Lifting cover; 22. Support ring two; 23. Support ring three; 24. Rubber diaphragm; 25. Pull ring; 26. Support frame;

[0044] 30. Pulling mechanism; 31. Fixed base; 32. Rotating frame; 321. Rotating ring; 322. Pull block one; 323. Pull block two; 324. Gear ring one; 33. Counterweight; 34. Brake cable; 35. Gear ring two; 36. Tension spring one;

[0045] 40. Calibration assembly; 41. Sleeve; 42. Tie rod; 43. Pressure block; 44. Tension spring II;

[0046] 50. Control components; 51. Crossbar; 52. Pull rope one; 53. Rotating column; 54. Limit plate; 55. Limit groove; 56. Pull rope two;

[0047] 60. Reversing mechanism; 61. Rotating seat; 62. Rotating arm; 63. Electric cylinder one;

[0048] 70. Grinding mechanism; 71. Motor II; 72. Grinding wheel; 73. Hinge frame; 74. Electric cylinder II. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0051] Combination Figures 1-10 A rotating stage, comprising:

[0052] A rotating table 10 is provided with a motor 13 on its lower side to drive its rotation;

[0053] The suction cup assembly 20 is coaxially mounted on the upper side of the rotating platform 10. The suction cup assembly 20 includes a ring-shaped support cover 21. Two upper edges of the support cover 21 are respectively fitted with support rings 22 and 23. The radii and positions of support rings 22 and 23 are adapted to and sealed to the lower surface of the metal cover in a preset state. The preset state of the metal cover means that when the metal cover is placed inside the rotating platform and rotates with it, the surfaces of the same circumference of the inner wall of the metal cover are on the same rotation path.

[0054] A rubber membrane 24 is sealed on the lower side of the lifting cover 21. Holes are formed on the surface of the support beam inside the lifting cover 21, allowing the upper and lower parts of the support beam to communicate. A pull ring 25 is provided on the lower side of the rubber membrane 24, which pulls the rubber membrane 24 to deform downwards. When the metal cover is placed on the upper side of the lifting cover 21 in a preset state, the second support ring 22 and the third support ring 23 are in closed contact with the lower surface of the metal cover, at which point a closed space is automatically formed inside the lifting cover 21.

[0055] Specifically, when the support cover 21 is stationary, the metal cover is supported only by the second support ring 22 and the third support ring 23, and the friction between them is small. When the metal cover is tilted and needs to be adjusted, the aforementioned friction has little restrictive effect, thus facilitating the adjustment of the metal cover's placement.

[0056] Furthermore, once the metal cover is adjusted to the preset state on the upper side of the support cover 21, simply pull down the pull ring 25 to cause the rubber membrane 24 to deform downwards. At this time, a negative pressure will be formed in the closed space inside the support cover 21 so as to firmly adsorb and fix the metal cover on the upper side of the support cover 21.

[0057] Combination Figures 3-8 Since the rotating platform 10 is a high-speed rotating structure, the structure used to pull down the pull ring 25 should not be electrically controlled. If the electrical structure is installed on the rotating platform 10, an additional power supply system is required, which will not only increase manufacturing costs but also increase subsequent maintenance burden.

[0058] To address the aforementioned problems, the present invention provides a pulling mechanism 30, which is coaxially mounted on the upper side of a rotating platform 10. Specifically, the pulling mechanism 30 includes a fixed base 31, and a rotating frame 32 is rotatably mounted on the edge of the fixed base 31. One end of the rotating frame 32 is connected to a counterweight 33, and the other end is provided with a pulling assembly for pulling down a pull ring 25. A tension spring 36 is provided on one side of the rotating frame 32, which is used to pull the rotating frame 32 to retract onto the side of the fixed base 31. The pulling assembly is driven by the centrifugal oscillation generated by the rotating frame 32 when the rotating platform 10 rotates.

[0059] Once the metal cover is adjusted to the preset state on the upper side of the support cover 21, the motor 13 can be started directly to make the turntable 10 start rotating. At this time, under the action of centrifugal force, the counterweight 33 overcomes the elastic force of the tension spring 36, causing the rotating frame 32 to deflect outward, thereby generating mechanical energy. Finally, the pulling assembly uses this mechanical energy to pull the pull ring 25 downward, realizing the pulling control of the pull ring 25.

[0060] It is worth noting that as the rotational speed of the turntable 10 increases, the centrifugal force of the counterweight 33 also increases accordingly, generating greater mechanical energy to drive the pulling assembly. This increases the pulling force acting on the pull ring 25, facilitating greater deformation of the rubber diaphragm 24 and thus enhancing the negative pressure suction of the lifting cover 21. This not only ensures the stability of the metal cover under high-speed rotation but also further enhances its fixing effect.

[0061] After the metal cover is polished, when the rotating table 10 returns to a stationary state, the rotating frame 32 gradually resets under the pull of the tension spring 36. Correspondingly, the pulling force of the pulling assembly on the pull ring 25 gradually decreases until it returns to its initial state. At this time, the deformation of the rubber diaphragm 24 recovers, causing the negative pressure suction of the lifting cover 21 on the metal cover to automatically decrease. This process not only simplifies the operation but also significantly improves the unloading efficiency of the polished metal cover.

[0062] Combination Figures 8-9 The rotating frame 32 is rotatably mounted on the fixed base 31 via a rotating ring 321 fixedly connected at one end. The pulling assembly includes a brake line 34 provided on one side of the rotating ring 321. A pull block 322 is fixedly provided on the arc surface of the rotating ring 321. One end of the core of the brake line 34 is fixedly connected to the outer end of the pull block 322, and the other end is used to drive the pull ring 25 to move downward. The sleeve of the brake line 34 is fixedly provided on the surface of the rotating table 10 by a buckle.

[0063] The arc surface of the rotating ring 321 is also fixedly provided with a second pull block 323, and one end of the first tension spring 36 is fixedly connected to the outer end of the second pull block 323;

[0064] Multiple rotating frames 32 are provided and are circumferentially distributed on the upper surface of the fixed base 31.

[0065] A gear ring 324 is coaxially fixedly connected to the lower side of the swivel ring 321, and a gear ring 35 is rotatably mounted on the upper side of the fixed base 31. The gear ring 35 meshes with multiple gear rings 324 simultaneously.

[0066] Specifically, during the rotation of the rotating platform 10, the centrifugal motion of the counterweight 33 overcomes the elastic tension of the tension spring 36, causing the rotating frame 32 to rotate around the rotating ring 321. Immediately afterwards, the pull block 322 connected to one side of the rotating ring 321 pulls the core of the brake line 34, further pulling the pull ring 25 downward, thereby realizing the pulling operation of the pull ring 25.

[0067] Because the toothed rings 324 on the lower side of the multiple rotating rings 321 are limited by the same toothed ring 35, the multiple rotating frames 32 unfold at the same angle when they rotate outward. Therefore, the pulling displacement of the multiple brake lines 34 at the corresponding connection positions of the pull rings 25 will also be consistent. Furthermore, by pulling the rubber membrane 24 through the pull rings 25, the negative pressure suction generated inside the lifting cover 21 will act evenly on the lower surface of the metal cover, thereby further improving the stability of adsorbing and fixing the metal cover.

[0068] Combination Figures 3-6 The lifting cover 21 is fixedly connected to the support frame 26 on its outer surface. Multiple support frames 26 are provided, and multiple support frames 26 fix the lifting cover 21 above the rotating table 10.

[0069] The upper surface of the rotating platform 10 is provided with an outer cover 11 that covers the inner side of the lifting cover 21. The upper edge of the outer cover 11 is fixedly fitted with a support ring 12, which fits and conforms to the outer edge of the metal cover in the preset state.

[0070] Specifically, by setting the outer cover 11 and the support ring 12, and placing the metal cover inside, the suction cup assembly 20 and the pulling mechanism 30 can be automatically concealed inside. As the rotating table 10 rotates, the metal dust generated during the grinding and polishing of the inner surface of the metal cover is less likely to spread into the outer cover 11, thereby effectively ensuring the cleanliness of the working environment of the suction cup assembly 20 and the pulling mechanism 30 and reducing the occurrence of malfunctions.

[0071] Combination Figures 4-6 , Figure 10 The outer cover 11 has a calibration component 40 for calibrating the metal cover on its upper edge. There are at least three calibration components 40, which are distributed circumferentially.

[0072] The calibration assembly 40 includes a sleeve 41 fixedly mounted on the upper edge of the outer cover 11. A pull rod 42 is movably disposed inside the sleeve 41. A tension spring 44 is fixedly disposed on the lower surface of the sleeve 41 for pulling the pull rod 42 upward, and the tension spring 44 is used to restore the position of the pull rod 42 when the rotating table 10 is stationary. A pressure block 43 is fixedly connected to the upper end of the pull rod 42. When the pull rod 42 moves downward, it pushes the upper edge of the metal cover downward through the pressure block 43. When at least three pressure blocks 43 push the upper edge of the metal cover downward simultaneously, the originally tilted metal cover can be calibrated to a preset state.

[0073] A control assembly 50 is mounted on the support frame 26. The control assembly 50 includes a crossbar 51. One end of the crossbar 51 is connected to the lower end of the pull rod 42 via a pull rope 52, and the other end of the crossbar 51 is connected to the lower surface of the pull ring 25 via a pull rope 56. One end of the core of the brake cable 34 is fixedly connected to the lower surface of the crossbar 51, with its connection position close to the pull rope 52. When the brake cable 34 pulls the crossbar 51, the end of the crossbar 51 closest to the pull rope 52 will descend first.

[0074] A rotating column 53 is also connected to the side surface of the crossbar 51 near the end of the pull rope 52. A limiting plate 54 is fixedly connected to one side of the support frame 26. The surface of the limiting plate 54 has a limiting groove 55 for guiding the movement range of the rotating column 53. When the end of the crossbar 51 near the pull rope 52 descends first, the rotating column 53 will move downward within the limiting groove 55. When the rotating column 53 moves to the bottom of the inner side of the limiting groove 55, as the brake line 34 continues to pull, the crossbar 51 can easily move downward around the rotating column 53 as the axis of rotation, allowing the other end connected to the pull rope 56 to move downward.

[0075] The multiple brake lines 34, support frame 26, control component 50 and multiple calibration components 40 correspond one-to-one.

[0076] Specifically, thanks to the pulling mechanism 30 controlling the consistent pulling displacement of multiple brake lines 34 while the turntable 10 is rotating, the movement state of multiple crossbars 51 remains consistent when the multiple brake lines 34 pull the corresponding crossbars 51. Simultaneously, when the lifting cover 21 does not generate negative pressure adsorption on the metal cover, the static friction between the metal cover and the lifting cover 21 is small, facilitating the calibration of the metal cover's position.

[0077] Furthermore, when the brake line 34 pulls the crossbar 51, one end of it preferentially pulls the pull rod 42 downward via the pull rope 52. At this time, only a weak negative pressure suction is generated inside the lifting cover 21 (because the other end of the brake line 34 also generates a small downward distance in actual condition, which will generate a weak negative pressure suction inside the lifting cover 21, but the suction effect on the adsorption and fixation of the metal cover is weak, and its effect on the pressure block 43 to calibrate the metal cover is negligible). As the rotating column 53 moves to the bottom of the limiting groove 55, the pressure block 43 at the upper end of the pull rod 42 will also descend a preset height. When at least three pressure blocks 43 have descended to the same height, the tilted metal cover can be automatically calibrated.

[0078] After the metal cover is automatically calibrated, it makes effective contact with the second support ring 22 and the third support ring 23 on the upper side of the lifting cover 21. At the same time, the brake line 34 continues to pull the crossbar 51, causing the crossbar 51 to rotate around the rotating column 53 as the axis of rotation. The second pull rope 56 pulls the pull ring 25 downward (the second pull rope 56 is set to adapt to the arc-shaped movement trajectory of one end of the crossbar 51), thereby causing the rubber diaphragm 24 to deform, further generating negative pressure on the inside of the lifting cover 21, automatically adsorbing and fixing the metal cover.

[0079] A polishing apparatus includes a reversing mechanism 60 and a grinding mechanism 70;

[0080] The reversing mechanism 60 includes a rotating seat 61 rotatably mounted on the machine base, a rotating arm 62 fixedly provided on the rotating shaft surface of the rotating seat 61, and an electric cylinder 63 connected to the outer end of the rotating arm 62 to drive its rotation.

[0081] Multiple grinding mechanisms 70 are provided and distributed around the rotating base 61. Each grinding mechanism 70 includes a hinge frame 73. A second motor 71 is fixedly mounted on the rotating plate on the upper side of the hinge frame 73. A fixed plate on the lower side of the hinge frame 73 is fixedly mounted on the machine base. An electric cylinder 74 is provided on one side of the fixed plate to drive the rotating plate. A grinding wheel 72 is connected to the output end of the second motor 71. The friction surface of the grinding wheel 72 is movably adapted to fit against a preset position on the inner surface of the metal cover.

[0082] A rotating platform is mounted on the rotating base 61. One end of the rotating arm 62 is pushed by an electric cylinder 63, controlling the rotation of the rotating base 61, which in turn causes the metal cover placed on the rotating platform to align with the corresponding grinding wheel 72. Subsequently, for the corresponding grinding mechanism 70, a second electric cylinder 74 pushes the movable plate of the hinge frame 73, causing the grinding wheel 72 mounted on the output end of the second motor 71 to rotate and fit against the corresponding inner wall of the metal cover, thereby performing polishing. As multiple grinding wheels 72 sequentially polish different parts of the inner surface of the metal cover, the inner surface of the metal cover is thoroughly polished.

[0083] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotating stage, characterized in that, include: A rotating platform (10) is provided on the underside of which a motor (13) drives its rotation. The suction cup assembly (20) is coaxially mounted on the upper side of the rotating table (10). The suction cup assembly (20) includes a ring-shaped lifting cover (21). The two upper edges of the lifting cover (21) are respectively fitted with a second support ring (22) and a third support ring (23). The radius and position of the second support ring (22) and the third support ring (23) are adapted to and sealed to the lower surface of the metal cover in the preset state. A rubber membrane (24) is also sealed on the lower side of the lifting cover (21). A pull ring (25) is provided on the lower side of the rubber membrane (24). The pull ring (25) pulls the rubber membrane (24) to deform downward. The pulling mechanism (30) is coaxially mounted on the upper side of the rotating table (10). The pulling mechanism (30) includes a fixed seat (31). A rotating frame (32) is rotatably provided on the edge of the fixed seat (31). A counterweight (33) is connected to one end of the rotating frame (32). A tension spring (36) is provided on one side of the rotating frame (32) to pull it to the side of the fixed seat (31). A pulling component for pulling down the pull ring (25) is provided on the other end of the rotating frame (32). The pulling component is driven by the centrifugal swing of the rotating frame (32) when the rotating table (10) rotates. The second support ring (22) and the third support ring (23) support the metal cover in a stationary state with low friction. When the turntable (10) rotates, the pulling mechanism (30) pulls the pull ring (25), forcing the lifting cover (21) to further fix the metal cover on the upper side of the lifting cover (21) through negative pressure. The rotating frame (32) is rotatably mounted on the fixed base (31) via a rotating ring (321) fixedly connected at one end. The pulling assembly includes a brake line (34) provided on one side of the rotating ring (321). A pull block (322) is fixedly provided on the arc surface of the rotating ring (321). One end of the core of the brake line (34) is fixedly connected to the outer end of the pull block (322), and the other end is used to drive the pull ring (25) to move downward. The lifting cover (21) is fixedly connected to a support frame (26) on its outer surface. Multiple support frames (26) are provided, and the multiple support frames (26) fix the lifting cover (21) above the rotating platform (10). The upper surface of the rotating platform (10) is provided with an outer cover (11) that covers the inner side of the lifting cover (21). The upper edge of the outer cover (11) is fixedly fitted with a support ring (12), and the support ring (12) is adapted to fit the outer edge of the metal cover in the preset state. The outer cover (11) is provided with a calibration component (40) for calibrating the metal cover on its upper edge. There are at least three calibration components (40) and they are distributed circumferentially. The support frame (26) is equipped with a control component (50), which is connected to one end of the brake line (34). Under the pull of the brake line (34), the control component (50) first drives the calibration component (40) and then drives the pull ring (25). The multiple brake lines (34), support frame (26), control components (50) and multiple calibration components (40) correspond one-to-one.

2. A rotating stage according to claim 1, characterized in that: The arc surface of the rotating ring (321) is also fixedly provided with a second pull block (323), and one end of the first tension spring (36) is fixedly connected to the outer end of the second pull block (323); Multiple rotating frames (32) are provided and are circumferentially distributed on the upper surface of the fixed base (31).

3. A rotating stage according to claim 2, characterized in that: The rotating ring (321) is coaxially fixedly connected to a gear ring 1 (324) on its lower side, and a gear ring 2 (35) is rotatably mounted on the upper side of the fixed seat (31). The gear ring 2 (35) meshes with multiple gear rings 1 (324) simultaneously.

4. A rotating stage according to claim 1, characterized in that: The calibration component (40) includes a sleeve (41) fixedly mounted on the upper edge of the outer cover (11), a pull rod (42) is movably arranged inside the sleeve (41), a tension spring (44) for pulling the pull rod (42) upward is fixedly arranged on the lower surface of the sleeve (41), and a pressure block (43) is fixedly connected to the upper end of the pull rod (42). Driven by the control component (50), the multiple pull rods (42) move downward and push the upper edge of the metal cover through the pressure block (43).

5. A rotating stage according to claim 4, characterized in that: The control component (50) includes a crossbar (51), one end of which is connected to the lower end of the pull rod (42) via a pull rope (52), and the other end of which is connected to the lower surface of the pull ring (25) via a pull rope (56). One end of the core of the brake line (34) is connected to the lower surface of the crossbar (51), and its connection position is close to the pull rope (52). A rotating column (53) is also connected to the side surface of the crossbar (51) near the pull rope (52). A limiting plate (54) is fixedly connected to one side of the support frame (26), and a limiting groove (55) is provided on the surface of the limiting plate (54) for guiding the movement range of the rotating column (53).

6. A polishing apparatus, characterized in that: Includes a reversing mechanism (60) and a grinding mechanism (70); The reversing mechanism (60) includes a rotating seat (61) rotatably mounted on the machine base. A rotating arm (62) is fixedly provided on the rotating shaft surface of the rotating seat (61). An electric cylinder (63) that pushes the rotating arm (62) to rotate is connected to the outer end of the rotating arm (62). The polishing mechanism (70) is provided in multiple ways and distributed around the rotating seat (61). The polishing mechanism (70) includes a hinge frame (73). A motor (71) is fixedly mounted on the rotating plate on the upper side of the hinge frame (73). A fixed plate on the lower side of the hinge frame (73) is fixedly mounted on the machine base. An electric cylinder (74) is provided on one side of the fixed plate to push the rotating plate to rotate. A polishing wheel (72) is connected to the output end of the motor (71). The friction surface of the polishing wheel (72) is movably adapted to fit the inner surface of the metal cover at a preset position. The rotating base (61) is equipped with a rotating stage according to any one of the preceding claims.

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