A dual-axis turntable and polishing apparatus

Abstract

The utility model provides a kind of double-shaft rotary table and polishing equipment, double-shaft rotary table includes four-axis subassembly and five-axis subassembly, four-axis subassembly includes four-axis shaft, four-axis shell, rotary output plate, four-axis sealing cover, four-axis sealing ring, four-axis motor and mounting plate, four-axis shaft is located in four-axis shell, four-axis sealing ring is sleeved in rotary output plate and four-axis sealing cover, and labyrinth type waterproof structure is formed between four-axis sealing ring and four-axis sealing cover, and multiple air passages are equipped in four-axis shaft;Five-axis subassembly is perpendicular to the axial direction of four-axis subassembly, and five-axis subassembly includes five-axis sealing ring, five-axis shell and five-axis motor, and four-axis shell side wall is connected with five-axis sealing ring, and labyrinth type waterproof structure is formed between five-axis sealing ring and five-axis shell, and four-axis shell side wall, five-axis sealing ring and five-axis motor are equipped with pipeline through hole to form pipeline passage, and five-axis shell bottom is equipped with pipeline outlet.The utility model can effectively prevent the winding and interference of pipeline, improve waterproof performance, and ensure machining precision.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding equipment, and in particular relates to a dual-axis turntable and grinding equipment. Background Technology

[0002] Currently, grinding machines are widely used for surface treatment of materials such as metal, wood, and stone. Precise control of the processing angle is crucial during the process. Existing technology often employs five-axis machining centers, with a dual-axis rotary table as the core functional component. This table typically works in conjunction with the machine tool's three axes to precisely control the processing angle. A force control sensor at the bottom of the dual-axis rotary table monitors the grinding force for real-time adjustment. However, the air hoses and electrical wires in the dual-axis rotary table usually extend directly from the side wall. During processing, the rotation of the rotary table causes these hoses and wires to rotate and swing significantly, sometimes even becoming entangled. This affects the data monitoring of the force control sensor at the bottom, consequently impacting the subsequent processing accuracy.

[0003] To solve the above-mentioned technical problems, this utility model designs a dual-axis rotary table and grinding equipment. Utility Model Content

[0004] This invention provides a dual-axis rotary table and grinding equipment, aiming to solve the problem that the rotation of the dual-axis rotary table causes the air pipes and wires to move and become entangled, affecting the processing accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-axis rotary table, comprising a four-axis assembly and a five-axis assembly. The four-axis assembly includes a four-axis rotating shaft, a four-axis housing, a rotary output plate, a four-axis sealing cover, a four-axis sealing ring, a four-axis motor, and a mounting plate. The four-axis rotating shaft is disposed inside the four-axis housing. The rotary output plate and the four-axis sealing cover are fitted onto the end of the four-axis rotating shaft. The four-axis motor is connected to the four-axis rotating shaft via a four-axis reducer. The four-axis sealing ring is fitted onto the rotary output plate and the four-axis sealing cover, forming a labyrinthine waterproof structure between the four-axis sealing ring and the four-axis sealing cover. The four-axis rotating shaft contains... The device has multiple air passages. The top of the mounting plate is sealed to the four-axis sealing ring and the four-axis sealing cover, and the bottom of the mounting plate is sealed to the four-axis housing. The axial direction of the five-axis assembly is perpendicular to the axial direction of the four-axis assembly. The five-axis assembly includes a five-axis sealing ring, a five-axis housing, and a five-axis motor. The side wall of the four-axis housing is connected to the five-axis sealing ring, and a labyrinth-type waterproof structure is formed between the five-axis sealing ring and the five-axis housing. The five-axis motor is located inside the five-axis housing. The side wall of the four-axis housing, the five-axis sealing ring, and the five-axis motor are all provided with pipeline openings to form pipeline channels. The bottom of the five-axis housing is provided with a pipeline outlet.

[0006] Based on the above technical solution, the four-axis sealing ring is provided with a first annular protrusion, a second annular protrusion and a third annular protrusion, the four-axis sealing cover is provided with a first annular groove and a second annular groove, the rotary output plate is provided with a third annular groove, the first annular protrusion and the second annular protrusion are respectively engaged with the first annular groove and the second annular groove, and the third annular protrusion is engaged with the third annular groove.

[0007] Furthermore, the four-axis assembly also includes a four-axis connecting plate, which is disposed inside the four-axis sealing cover. The rotary output plate, the four-axis connecting plate, the four-axis reducer, and the four-axis motor are arranged sequentially along the axial direction. A skeleton oil seal is provided between the rotary output plate, the four-axis sealing cover, and the four-axis connecting plate.

[0008] Based on the above technical solution, the four-axis rotating shaft includes a slip ring shaft and a slip ring seat. The slip ring seat extends into the slip ring shaft. The air passage includes a first air passage on the slip ring shaft, a second air passage on the slip ring seat, and a third air passage. One end of the first air passage extends to the top of the slip ring shaft, and the other end of the first air passage is connected to one end of the second air passage. The slip ring seat has an annular groove corresponding to the connection between the second air passage and the first air passage. First sealing elements are provided on both sides of the annular groove. The third air passage is located at the bottom of the slip ring seat and is connected to the other end of the second air passage and extends along the radial direction of the slip ring seat.

[0009] Furthermore, the quadcopter is provided with a first electrical connector at its bottom.

[0010] Based on the above technical solution, the five-axis sealing ring is provided with a fourth annular protrusion and a fifth annular protrusion, and the five-axis housing is provided with a fourth annular groove and a fifth annular groove. The fourth annular protrusion and the fifth annular protrusion are respectively engaged with the fourth annular groove and the fifth annular groove.

[0011] Furthermore, a second electrical connector is provided on the side of the five-axis motor near the bottom of the five-axis housing.

[0012] Furthermore, the five-axis assembly also includes a five-axis connecting plate and a five-axis reducer. The five-axis sealing ring, the five-axis connecting plate, the five-axis reducer and the five-axis motor are arranged sequentially along the axial direction. The five-axis sealing ring is provided with a second seal between itself and the side wall of the four-axis housing and the five-axis connecting plate.

[0013] Optionally, both the bottom wall of the four-axis housing and the side wall of the five-axis housing are provided with drainage bolts.

[0014] Secondly, this utility model provides a grinding device, including a dual-axis rotary table as described in any of the above embodiments.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows: This invention features an air passage within the four-axis rotary shaft. During machining at the working position on top of the rotary shaft, the four-axis motor drives the rotary output plate, and the power airflow within the four-axis housing flows along the air passage to drive the working position. This avoids the problem of air pipes easily becoming entangled as the turntable rotates, a problem common in traditional arrangements. Pipeline channels are provided on the side wall of the four-axis housing and inside the five-axis housing, with a pipeline outlet at the bottom of the five-axis housing. This allows airflow to enter the air passage within the four-axis housing and then the pipeline channel within the five-axis housing, finally connecting to the force control sensor at the bottom of the dual-axis turntable via the pipeline outlet. When the four-axis and five-axis assemblies rotate and work together at the working position, this structure effectively prevents internal air pipes from moving erratically or becoming entangled, ensuring the monitoring accuracy of the force control sensor at the bottom of the dual-axis turntable and thus improving subsequent machining accuracy.

[0016] In addition, a labyrinthine waterproof structure is formed between the four-axis sealing ring and the four-axis sealing cover, and between the five-axis sealing ring and the five-axis housing, which significantly improves the overall waterproof effect of the dual-axis turntable and prevents external moisture from entering the interior and affecting normal operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the dual-axis rotary table provided by this utility model; Figure 2 This is a top view of the dual-axis turntable provided by this utility model. Figure 3 This utility model provides Figure 2 A schematic diagram of the cross-sectional structure along the AA direction shown in the figure; Figure 4 This utility model provides Figure 3 An enlarged structural diagram of part A shown in the figure; Figure 5 This utility model provides Figure 3 An enlarged structural diagram of part B shown in the figure; Figure 6 This is a structural schematic diagram showing the location of the drain bolts on the four-axis housing provided by this utility model; Figure 7 This is a structural schematic diagram of the drainage bolt position of the five-axis housing provided by this utility model.

[0019] In the diagram: 1. Four-axis assembly; 11. Four-axis rotating shaft; 111. Slip ring shaft; 112. Slip ring seat; 113. Air passage; 114. First air passage; 115. Second air passage; 116. Third air passage; 117. Annular groove; 118. First seal; 12. Four-axis housing; 13. Rotary output plate; 131. Third annular groove; 14. Four-axis sealing cover; 141. First annular groove; 142. Second annular groove; 15. Four-axis sealing ring; 151. First annular protrusion; 152. Second annular protrusion; 153. Third annular protrusion; 16. Four-axis motor ; 161, First wire connector; 17, Mounting plate; 18, Four-axis connecting plate; 181, Frame oil seal; 19, Four-axis reducer; 2, Five-axis assembly; 21, Five-axis sealing ring; 211, Fourth annular protrusion; 212, Fifth annular protrusion; 22, Five-axis housing; 221, Pipeline outlet; 222, Fourth annular groove; 223, Fifth annular groove; 23, Five-axis motor; 231, Pipeline inlet; 232, Pipeline channel; 233, Second wire connector; 24, Five-axis connecting plate; 25, Five-axis reducer; 26, Second seal; 27, Drain bolt. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and examples: The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Combination Figure 1-3 As shown, this embodiment of the present disclosure provides a dual-axis rotary table, including a four-axis assembly 1 and a five-axis assembly 2. The four-axis assembly 1 includes a four-axis rotating shaft 11, a four-axis housing 12, a rotary output plate 13, a four-axis sealing cover 14, a four-axis sealing ring 15, a four-axis motor 16, and a mounting plate 17. The four-axis rotating shaft 11 is disposed inside the four-axis housing 12. The rotary output plate 13 and the four-axis sealing cover 14 are sleeved on the end of the four-axis rotating shaft 11. The four-axis motor 16 is connected to the four-axis rotating shaft 11 through a four-axis reducer 19. The four-axis sealing ring 15 is sleeved on the rotary output plate 13 and the four-axis sealing cover 14, forming a labyrinth-type waterproof structure between the four-axis sealing ring 15 and the four-axis sealing cover 14. The four-axis rotating shaft 11 is provided with multiple air passages 113. The top of the mounting plate 17 is sealed to the four-axis sealing ring 15 and the four-axis sealing cover 14, and the bottom of the mounting plate 17 is sealed to the four-axis housing 12. The axial direction of the five-axis assembly 2 is perpendicular to the axial direction of the four-axis assembly 1. The five-axis assembly 2 includes a five-axis sealing ring 21, a five-axis housing 22 and a five-axis motor 23. The side wall of the four-axis housing 12 is connected to the five-axis sealing ring 21. A labyrinth waterproof structure is formed between the five-axis sealing ring 21 and the five-axis housing 22. The five-axis motor 23 is located inside the five-axis housing 22. The side wall of the four-axis housing 12, the five-axis sealing ring 21 and the five-axis motor 23 are all provided with pipeline openings 231 to form pipeline channels 232. The bottom of the five-axis housing 22 is provided with a pipeline outlet 221.

[0024] Using the dual-axis rotary table provided in this embodiment, an air passage 113 is provided inside the four-axis rotary shaft 11. When machining is performed on the rotating output plate 13 and the working position at the top of the four-axis rotary shaft 11, the four-axis motor 16 drives the rotating output plate 13 to rotate. The power airflow in the four-axis housing 12 flows along the air passage 113 to drive the working position for machining, avoiding the entanglement that occurs when rotating traditional air pipes. A pipeline channel 232 is provided through the side wall of the four-axis housing 12 and inside the five-axis housing 22, and a pipeline outlet 221 is provided at the bottom of the five-axis housing 22. When the airflow passes through the air passage 113 inside the four-axis housing 12, it enters the air pipe. The air pipe enters the pipeline channel 232 inside the five-axis housing 22, and finally exits from the pipeline outlet 221 to the force control sensor at the bottom of the dual-axis rotary table. When the four-axis assembly 1 and the five-axis assembly 2 rotate and work together to perform machining, the internal air pipes are prevented from moving randomly or entangled, ensuring the monitoring accuracy of the force control sensor at the bottom of the dual-axis rotary table and improving the subsequent machining accuracy to a certain extent.

[0025] In addition, a labyrinthine waterproof structure is formed between the four-axis sealing ring 15 and the four-axis sealing cover 14, and between the five-axis sealing ring 21 and the five-axis housing 22, which significantly improves the overall waterproof effect of the dual-axis turntable and prevents external moisture from entering the interior and affecting normal operation.

[0026] Based on the above technical solutions, such as Figure 3 and Figure 4 As shown, the four-axis sealing ring 15 is provided with a first annular protrusion 151, a second annular protrusion 152 and a third annular protrusion 153, the four-axis sealing cover 14 is provided with a first annular groove 141 and a second annular groove 142, and the rotating output plate 13 is provided with a third annular groove 131. The first annular protrusion 151 and the second annular protrusion 152 are respectively engaged with the first annular groove 141 and the second annular groove 142, and the third annular protrusion 153 is engaged with the third annular groove 131.

[0027] In this way, the combination of multiple protrusions and grooves forms a labyrinthine waterproof structure, which greatly extends the penetration path of external water and changes the path direction multiple times, thus multiplying the fluid resistance and improving the waterproof effect.

[0028] Specifically, the mounting plate 17 has a groove on its top, and the quadcopter sealing cover 14 has a protrusion. The protrusion is engaged in the groove, and the side wall of the protrusion has a mounting groove. An O-ring is installed in the mounting groove, thus the O-ring seals the mounting plate 17 and the quadcopter sealing cover 14. The side wall of the mounting plate 17 near the quadcopter housing 12 also has a mounting groove, and an O-ring is installed in the mounting groove, which seals the mounting plate 17 and the quadcopter housing 12.

[0029] The rotating output plate 13 is also provided with a mounting groove on the side wall near the four-axis rotating shaft 11. An O-ring is provided in the mounting groove to seal the rotating output plate 13 and the four-axis rotating shaft 11.

[0030] Furthermore, such as Figure 3 As shown, the four-axis assembly 1 also includes a four-axis connecting plate 18, which is disposed inside the four-axis sealing cover 14. The rotary output plate 13, the four-axis connecting plate 18, the four-axis reducer 19 and the four-axis motor 16 are arranged sequentially along the axial direction. A skeleton oil seal 181 is provided between the rotary output plate 13, the four-axis sealing cover 14 and the four-axis connecting plate 18.

[0031] Specifically, the four-axis motor 16 can be a servo motor or a stepper motor, and the reducer can be a harmonic reducer, a planetary reducer, or an RV reducer. Preferably, the four-axis motor 16 is a servo motor, and the reducer is a harmonic reducer. The skeleton oil seal 181 can provide a sealing function between the rotary output plate 13, the four-axis sealing cover 14, and the four-axis connecting plate 18.

[0032] Based on the above technical solutions, such as Figure 3 and Figure 5As shown, the four-axis rotating shaft 11 includes a slip ring shaft 111 and a slip ring seat 112. The slip ring seat 112 extends into the slip ring shaft 111. The air passage 113 includes a first air passage 114 provided on the slip ring shaft 111, a second air passage 115 provided on the slip ring seat 112, and a third air passage 116. One end of the first air passage 114 extends to the top of the slip ring shaft 111, and the other end of the first air passage 114 is connected to one end of the second air passage 115. The slip ring seat is provided with an annular groove 117 at the connection between the second air passage 115 and the first air passage 114. First sealing elements 118 are provided on both sides of the annular groove 117. The third air passage 116 is located at the bottom of the slip ring seat 112. The third air passage 116 is connected to the other end of the second air passage 115 and extends radially along the slip ring seat 112.

[0033] Specifically, during the machining process, the working position is fixed to the top of the rotary output plate 13 and the four-axis rotating shaft 11. The power air source for the working position enters the second air passage 115 from the top of the four-axis rotating shaft 11 through the first air passage 114. During the rotation of the rotary output plate and the four-axis rotating shaft, the first air passage 114 remains connected to the second air passage 115 through the annular groove 117, and then exits from the four-axis rotating shaft 11 through the third air passage 116, connecting to an air pipe. The air pipe enters the five-axis housing 22 through the pipeline channel 232 of the five-axis assembly 2, and exits to the outside of the five-axis housing 22 through the pipeline outlet 221 at the bottom. In this way, the airflow flows through the fixed air passage 113 to the four-axis assembly, and the air pipe is arranged in the five-axis assembly through the fixed pipeline channel 232. During the machining process at the working position, it is possible to avoid large-scale movement of the air pipe when the four-axis assembly 1 and the five-axis assembly 2 rotate, thereby ensuring machining accuracy.

[0034] The multiple air channels include three independent air paths. Two paths are used to introduce high-pressure gas, providing the power for the extension and retraction of the machining fixture on the workstation; the other path is used to connect to a vacuum source, providing a vacuum adsorption clamping method for the fixture. This air path separation design optimizes system performance and is compatible with both cylinder clamping and vacuum adsorption, two mainstream automatic clamping methods, laying the foundation for automated grinding.

[0035] Furthermore, such as Figure 3 As shown, the four-axis motor 16 has a first wire connector 161 at its bottom. The wire exits from the first wire connector 161, enters the five-axis housing 22 through the pipeline channel 232 of the five-axis assembly 2, and exits from the pipeline outlet 221 at the bottom of the five-axis housing 22. This prevents the internal wires from moving or tangling during machining operations when the four-axis assembly 1 and the five-axis assembly 2 are rotating and working together, ensuring the monitoring accuracy of the force control sensor at the bottom of the dual-axis rotary table.

[0036] Based on the above technical solutions, such as Figure 4 As shown, the five-axis sealing ring 21 is provided with a fourth annular protrusion 211 and a fifth annular protrusion 212, and the five-axis housing 22 is provided with a fourth annular groove 222 and a fifth annular groove 223. The fourth annular protrusion 211 and the fifth annular protrusion 212 are respectively engaged with the fourth annular groove 222 and the fifth annular groove 223.

[0037] In this way, the combination of multiple protrusions and grooves forms a labyrinthine waterproof structure, which greatly extends the penetration path of external water and changes the path direction multiple times, thus multiplying the fluid resistance and improving the waterproof effect.

[0038] Furthermore, such as Figure 3 As shown, the five-axis assembly 2 also includes a five-axis connecting plate 24 and a five-axis reducer 25. The five-axis sealing ring 21, the five-axis connecting plate 24, the five-axis reducer 25 and the five-axis motor 23 are arranged sequentially along the axial direction. The five-axis sealing ring 21 is provided with a second sealing element 26 between itself and the side wall of the four-axis housing 12 and the five-axis connecting plate 24.

[0039] Specifically, the five-axis motor 23 can be a servo motor or a stepper motor, and the reducer can be a harmonic reducer, a planetary reducer, or an RV reducer. Preferably, the five-axis motor 23 is a servo motor, and the reducer is a harmonic reducer. The second seal 26 can be an O-ring, which can seal the space between the five-axis sealing ring 21 and the side wall of the four-axis housing 12, and between the five-axis sealing ring 21 and the five-axis connecting plate 24.

[0040] To improve the wiring arrangement of the five-axis motor 23, a second wire connector 233 is provided on the side of the five-axis motor 23 near the bottom of the five-axis housing 22. After the wire is connected out from the second wire connector 233, it is connected to the outside through the pipeline outlet 221 at the bottom of the five-axis housing 22.

[0041] Optionally, such as Figure 6 and Figure 7 As shown, both the bottom wall of the four-axis housing 12 and the side wall of the five-axis housing 22 are provided with drainage bolts 27. When a small amount of water enters the four-axis assembly 1 or the five-axis assembly 2, the drainage bolts 27 can be unscrewed to drain the water through the threaded holes corresponding to the drainage bolts 27 to the outside of the four-axis assembly 1 or the five-axis assembly 2.

[0042] Grinding fluid needs to be added during the workpiece grinding process. In order to improve the corrosion resistance of the dual-axis rotary table, all fixing bolts in the dual-axis rotary table are made of corrosion-resistant material, and all surfaces of the dual-axis rotary table that can come into contact with the grinding fluid are also made of corrosion-resistant material, such as the four-axis housing, mounting plate, rotary output plate, five-axis housing and five-axis sealing ring. Preferably, stainless steel is used.

[0043] This disclosure provides a grinding device, including a dual-axis rotary table as described in any of the above embodiments.

[0044] The grinding equipment provided in this disclosure includes the dual-axis rotary table described in any of the above-disclosed embodiments, and therefore has all the beneficial effects of the dual-axis rotary table described in any of the above-disclosed embodiments, which will not be repeated here.

[0045] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A dual-axis rotary table, characterized in that, The system includes a four-axis assembly and a five-axis assembly. The four-axis assembly includes a four-axis rotating shaft, a four-axis housing, a rotary output plate, a four-axis sealing cover, a four-axis sealing ring, a four-axis motor, and a mounting plate. The four-axis rotating shaft is located inside the four-axis housing. The rotary output plate and the four-axis sealing cover are fitted onto the ends of the four-axis rotating shaft. The four-axis motor is connected to the four-axis rotating shaft via a four-axis reducer. The four-axis sealing ring is fitted onto the rotary output plate and the four-axis sealing cover, forming a labyrinth-type waterproof structure between the four-axis sealing ring and the four-axis sealing cover. The four-axis rotating shaft has multiple air passages inside. The top of the mounting plate is sealed to the four-axis sealing ring and the four-axis sealing cover, and the bottom of the mounting plate is sealed to the four-axis housing. The axial direction of the five-axis assembly is perpendicular to the axial direction of the four-axis assembly. The five-axis assembly includes a five-axis sealing ring, a five-axis housing, and a five-axis motor. The side wall of the four-axis housing is connected to the five-axis sealing ring, and a labyrinth-type waterproof structure is formed between the five-axis sealing ring and the five-axis housing. The five-axis motor is located inside the five-axis housing. The side wall of the four-axis housing, the five-axis sealing ring, and the five-axis motor are all provided with pipeline openings to form pipeline channels. The bottom of the five-axis housing is provided with a pipeline outlet.

2. The dual-axis rotary table according to claim 1, characterized in that, The four-axis sealing ring is provided with a first annular protrusion, a second annular protrusion and a third annular protrusion, the four-axis sealing cover is provided with a first annular groove and a second annular groove, and the rotating output plate is provided with a third annular groove. The first annular protrusion and the second annular protrusion are respectively engaged with the first annular groove and the second annular groove, and the third annular protrusion is engaged with the third annular groove.

3. The dual-axis rotary table according to claim 1, characterized in that, The four-axis assembly also includes a four-axis connecting plate, which is located inside the four-axis sealing cover. The rotary output plate, the four-axis connecting plate, the four-axis reducer, and the four-axis motor are arranged sequentially along the axial direction. A skeleton oil seal is provided between the rotary output plate, the four-axis sealing cover, and the four-axis connecting plate.

4. The dual-axis rotary table according to claim 1, characterized in that, The four-axis rotating shaft includes a slip ring shaft and a slip ring seat. The slip ring seat extends into the slip ring shaft. The air passage includes a first air passage on the slip ring shaft, a second air passage on the slip ring seat, and a third air passage. One end of the first air passage extends to the top of the slip ring shaft, and the other end of the first air passage is connected to one end of the second air passage. The slip ring seat has an annular groove corresponding to the connection between the second air passage and the first air passage. First sealing elements are provided on both sides of the annular groove. The third air passage is located at the bottom of the slip ring seat and is connected to the other end of the second air passage and extends radially along the slip ring seat.

5. The dual-axis rotary table according to claim 1, characterized in that, The quadcopter has a first electrical connector at its bottom.

6. The dual-axis rotary table according to any one of claims 1 to 5, characterized in that, The five-axis sealing ring is provided with a fourth annular protrusion and a fifth annular protrusion, and the five-axis housing is provided with a fourth annular groove and a fifth annular groove. The fourth annular protrusion and the fifth annular protrusion are respectively engaged with the fourth annular groove and the fifth annular groove.

7. The dual-axis rotary table according to any one of claims 1 to 5, characterized in that, The five-axis motor has a second electrical connector on one side near the bottom of the five-axis housing.

8. The dual-axis rotary table according to any one of claims 1 to 5, characterized in that, The five-axis assembly also includes a five-axis connecting plate and a five-axis reducer. The five-axis sealing ring, the five-axis connecting plate, the five-axis reducer and the five-axis motor are arranged sequentially along the axial direction. The five-axis sealing ring is provided with a second sealing element between itself and the side wall of the four-axis housing and the five-axis connecting plate.

9. The dual-axis rotary table according to any one of claims 1 to 5, characterized in that, Drainage bolts are provided on the bottom wall of the four-axis housing and the side wall of the five-axis housing.

10. A grinding device, characterized in that, Includes a dual-axis rotary table as described in any one of claims 1 to 9.

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