Numerical control machine tool with dust falling function for sensor accessory precision machining

Abstract

The invention relates to the technical field of sensor precision machining, in particular to a numerical control machine tool with a dust falling function for sensor accessory precision machining, which comprises a polishing platform and further comprises a clamping mechanism and a shell, a fixed shell is fixedly mounted at the top of the inner wall of the shell, and a rotating shell is rotatably connected to the bottom of the fixed shell; a polishing disc is fixedly installed at the bottom of the rotating shell, a circle of first air outlet holes and a circle of second air outlet holes are formed in the top of the polishing disc in a penetrating mode, an air suction hole is formed in the circle center of the top of the polishing disc in a penetrating mode, and a circle of trapezoidal air blowing holes are formed in the top of the polishing disc in a penetrating mode. Dust generated in the polishing process can be comprehensively treated in time, the polishing uniformity and consistency of the sensor are ensured, dust is prevented from being accumulated on the polishing surface, the problems that the polishing surface is scratched, abraded and the like due to the fact that dust particles are mixed between the polishing disc and the sensor component are solved, and the polishing precision and quality are ensured.

Description

Technical Field

[0001] This invention relates to the field of precision machining technology for sensors, and in particular to a CNC machine tool for precision machining of sensor accessories with dust reduction function. Background Technology

[0002] In modern manufacturing, the machining accuracy and surface quality of sensor components play a crucial role in their performance and reliability. Sensor components are often precision-machined using CNC machine tools. Polishing, as a key process in sensor component manufacturing, aims to remove surface imperfections and obtain a smooth and flat surface to meet the stringent requirements of sensors in terms of sensitivity, stability, and durability.

[0003] During the polishing process, a large amount of dust particles are inevitably generated due to the friction between the abrasive and the workpiece surface. This dust pollutes the working environment and adversely affects the polishing equipment itself. If dust particles remain on the surface of sensor components, it will increase surface roughness and affect the performance of the sensor.

[0004] The invention patent with publication number CN116551545A discloses a dust-reducing polishing device for processing sensor components. It includes a platform, polishing modules on the outer surfaces of the I-shaped sliding plate and the flat plate, a gas guiding module on the bottom of the platform near the inner surface of the water tank, and a duct fixedly connected to the top of the water tank near the fan. The top of the duct is installed at the bottom of the gas guiding module, and the working end of the fan is installed on the outer surface of the duct. This achieves the effect of dust removal, can promptly handle the dust and abrasives generated during polishing, reduce the impact of dust and abrasives, result in high polishing quality, and reduce the amount inhaled by the human body.

[0005] While the aforementioned patent has certain beneficial effects, the area covered by the airflow from the exhaust port is very limited. It can only affect the center and a small area around the polishing pad, making it difficult to reach the edges of the polishing pad and other areas far from the center. The airflow intensity decreases rapidly as it diffuses to the periphery, making it difficult to provide a strong and continuous force to completely blow away the dust and debris from all locations. This results in poor overall impurity removal and uneven removal of impurities across different areas of the polishing pad surface. The central area is relatively clean, but a large amount of dust and debris remains in the edge areas. It is impossible to ensure that the entire working area of ​​the polishing pad is in a good clean state, affecting the uniformity and consistency of the polishing of the sensor components, and thus affecting the polishing quality and making the equipment less practical. Summary of the Invention

[0006] The purpose of this invention is to solve the problem of poor practicality of existing equipment, and to propose a CNC machine tool for precision machining of sensor accessories with dust reduction function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a CNC machine tool for precision machining of sensor accessories with dust reduction function, including a polishing platform, and further comprising: A clamping mechanism is disposed on top of the polishing platform; The outer casing is positioned above the polishing platform via a movable component. A fixed housing is fixedly installed on the top of the inner wall of the outer casing, and a rotating housing is rotatably connected to the bottom of the fixed housing. The rotating housing extends through the bottom of the outer casing, and a polishing disc is fixedly installed on the bottom of the rotating housing. A drive component is provided inside the outer casing to drive the polishing disc to rotate. The top of the polishing disc is provided with a first air outlet and a second air outlet. The first air outlet is located on the outer ring, and the second air outlet is located on the inner ring. The diameter of the first air outlet is larger than that of the second air outlet. Both the first and second air outlets are inclined away from the center of the polishing disc, and the inclination angle of the first air outlet is greater than that of the second air outlet. An air blowing mechanism is provided above the polishing disc. An air suction hole is provided through the center of the top of the polishing disc. The diameter of the air suction hole gradually increases from top to bottom. The air suction hole is connected to a dust collection component. The top of the polishing disc is provided with a ring of trapezoidal air holes, which are located between the second air outlet and the air inlet. The width of the trapezoidal air holes gradually increases from top to bottom. The inner wall of the trapezoidal air holes is rotatably connected to two rotating plates, which divide the interior of the trapezoidal air holes into three channels.

[0008] Preferably, the clamping mechanism includes two sets of clamping components, which are symmetrically distributed on the top of the polishing platform. Each clamping component includes a fixed block that is fixedly installed on the top of the polishing platform. An electric telescopic rod is fixedly connected to the side of the fixed block near the center of the top of the polishing platform, and an arc-shaped plate is fixedly connected to the end of the electric telescopic rod away from the fixed block.

[0009] Preferably, the movable component includes a fixed base disposed on the side wall of the polishing platform, a movable device slidably connected to the fixed base on the side near the polishing platform, and the outer shell fixedly mounted on the movable device.

[0010] Preferably, a first external gear ring is fixedly installed on the outer wall of the rotating housing, and the driving assembly includes a first motor fixedly installed on the top of the inner wall of the housing. A first gear is fixedly installed on the outer wall of the rotating shaft of the first motor, and the first gear meshes with the first external gear ring.

[0011] Preferably, a brush is rotatably connected to the outer wall of the fixed housing, the inner wall of the brush contacts the side wall of the polishing disc, a second external gear ring is fixedly installed on the top of the brush, a second gear is fixedly installed on the side wall of the rotating shaft of the first motor, and the second gear is located below the first gear. A third gear is rotatably connected to the inner wall of the housing via a rotating shaft. The third gear is located between the second external gear ring and the second gear and meshes with the second external gear ring and the second gear. A conical ring is fixedly installed at the bottom of the housing. The conical ring is sleeved on the outer wall of the brush, and multiple air jets are provided at the bottom of the conical ring. The air jets are distributed in a circumferential array at the bottom of the conical ring.

[0012] Preferably, a fixed disk is fixedly installed on the inner wall of the rotating housing, the fixed disk is located above the polishing disk, a first rotating ring is fixedly installed on the top of the fixed disk, and a fixed ring is rotatably connected to the top of the first rotating ring. The air blowing mechanism includes a nitrogen generator fixedly installed on the side wall of the polishing platform, an air inlet pipe is fixedly connected to the side wall of the nitrogen generator, an air pump is fixedly installed on the inner wall of the housing, the air inlet pipe is fixedly connected to the air pump, an exhaust pipe is fixedly connected to the exhaust end of the air pump, the exhaust pipe passes through the fixed housing and is fixedly connected to the fixed ring, and a plurality of first air outlet pipes are fixedly connected to the top of the fixed disk. The plurality of first air outlet pipes are circumferentially arrayed on the fixed disk, and all of the plurality of first air outlet pipes are fixedly connected to the first rotating ring.

[0013] Preferably, the dust collection assembly includes a dust pump fixedly installed on the top of the inner wall of the housing. The dust pump is located inside the fixed housing and above the fixed ring. The top of the fixed ring is fixedly connected to the bottom of the dust pump. The top center of the polishing disc is fixedly connected to the dust pump via a suction pipe, which is also connected to the air intake. The suction pipe passes through the fixed disc, the first rotating ring, and the fixed ring. The suction pipe is rotatably connected to the fixed disc. The side wall of the dust pump is fixedly connected to a discharge pipe.

[0014] Preferably, the top of the polishing platform has two through grooves, which are symmetrically distributed on both sides of the clamping mechanism. A dust collection box is fixedly installed on the bottom of the inner wall of the polishing platform. The two grooves are respectively fixedly connected to the dust collection box by connecting pipes, and the connecting pipes are inclined downwards. A dust collection bag is provided at the end of the connecting pipe away from the groove. The dust collection bag is located inside the dust collection box. An air suction fan is fixedly installed inside the dust collection box. A second air outlet pipe is fixedly connected to the side wall of the dust collection box. The second air outlet pipe extends through the polishing platform. The discharge pipe is fixedly connected to the connecting pipe on the corresponding side.

[0015] Preferably, a water tank is fixedly installed on the side of the polishing platform away from the nitrogen generator, a water pump is fixedly installed on the side wall of the outer shell, the water pump is fixedly connected to the water tank by an inlet pipe, the water outlet of the water pump is fixedly connected to an outlet pipe, the outlet pipe passes through the outer shell and the fixed housing and is fixedly connected to the fixed ring, and the end of the outlet pipe is fixedly connected to an atomizing nozzle, which is located inside the fixed ring.

[0016] Preferably, a second motor is fixedly mounted on the top of the fixed disk, and a rotating rod is fixedly connected to the output end of the second motor. A sixth gear and a fifth gear are fixedly mounted on the side wall of the rotating rod. The sixth gear is located below the fixed disk, and the fifth gear is located below the sixth gear. A circular groove is provided at the bottom of the fixed disk, and multiple fixed rods are slidably connected to the circular groove. The multiple fixed rods are arranged in a circumferential array at the bottom of the fixed disk. An internal gear ring is provided below the fixed disk, and the top of the internal gear ring is fixedly connected to the bottom of the multiple fixed rods. A second rotating ring is rotatably connected to the inner wall of the rotating housing. Corresponding to the internal gear ring, a plurality of first fan blades are fixedly connected between the second rotating ring and the internal gear ring. The plurality of first fan blades are arranged in a circumferential array on the outer wall of the internal gear ring. The internal gear ring meshes with the sixth gear. The outer wall of the suction pipe is rotatably connected to the fourth gear. The fourth gear meshes with the fifth gear. The outer wall of the suction pipe is rotatably connected to the rotating ring. The bottom of the fourth gear is fixedly connected to the top of the rotating ring. A plurality of second fan blades are fixedly installed on the outer wall of the rotating ring. The plurality of second fan blades are arranged in a circumferential array on the outer wall of the rotating ring. The first fan blades are located on the outer ring above the second fan blades. Small holes are opened on both the first fan blades and the second fan blades.

[0017] Compared with existing technologies, the advantages of this invention are: 1. This invention blows nitrogen gas from a first and second air outlet at different positions, with different apertures and tilt angles on a polishing disc. The first and second air outlets work together to remove dust from all directions, effectively utilizing the kinetic energy of the airflow to blow dust particles generated during the polishing process away from the polishing surface. The suction holes target dust that is difficult to blow out in the central area, and their apertures gradually increase from top to bottom to ensure smooth and efficient suction, preventing dust accumulation in the center. A rotating plate is installed inside the trapezoidal air outlet; the angle of the rotating plate can be adjusted according to the amount of dust, changing the width of the air outlets on both sides of the trapezoidal air outlet, thereby adjusting the... By adjusting the blowing speed and power, the dust flow direction is effectively controlled, avoiding unnecessary dust dispersion. Through the coordination of trapezoidal air blowing holes, suction holes, and exhaust holes, a comprehensive and efficient dust removal mechanism is formed, ensuring that the dust generated during the polishing process is treated in a timely and comprehensive manner. This prevents dust accumulation on the polishing surface and avoids problems such as scratches and wear on the polishing surface caused by dust particles trapped between the polishing disc and sensor components. It ensures the precision and quality of polishing, enabling sensor components to obtain a smooth and flat polished surface. At the same time, it prevents dust from flying in the working area, improving the working environment for operators.

[0018] 2. This invention incorporates a water pump and a water tank. After the water pump draws water, it is sprayed out through an atomizing nozzle. The water mist mixes with nitrogen gas in a fixed ring and is then discharged together from the first outlet pipe. The water mist can moisten and fix the dust, preventing dust particles from rubbing or embedding between the polishing surface and the polishing disc. This makes the polished surface of the sensor component smoother and flatter, reduces surface defects, and improves polishing quality and accuracy.

[0019] 3. This invention, by setting up a first fan blade and a second fan blade, etc., the rotation of the first fan blade causes nitrogen and water mist to be discharged quickly and evenly from each air hole, ensuring that the surface of the polishing disc is fully covered by gas and water mist, improving the comprehensiveness and uniformity of dust removal. The rotation of the second fan blade in the inner ring enhances the airflow intensity in the central area, making it easier to handle the dust accumulated in the center. The shearing force refines the water mist particles, making them more evenly distributed and easier to wet the dust, thereby enhancing the dust reduction effect. At the same time, the small holes on the fan blade also help to increase the nitrogen flow path and further refine the water mist particles.

[0020] 4. This invention, by setting up devices such as brushes and conical rings, with the brush rotating in the opposite direction to the polishing disc, thoroughly and evenly cleans the outer wall of the polishing disc, preventing dust from accumulating on the outer wall of the polishing disc. The friction between the brush and the conical ring generates an electrostatic effect, adsorbing passing dust particles and preventing dust from re-accumulating on the polishing surface. Furthermore, the air jet pipe on the conical ring can blow off the dust on the brush, further assisting in dust collection.

[0021] 5. In this invention, the groove on the top of the polishing platform, the inclined connecting pipe, the dust collection box, the suction fan, and the dust collection bag constitute a dust collection system, which can collect dust from different directions, improve the dust collection range and efficiency, the collected dust remains in the dust collection bag, and the clean gas is discharged, maintaining the cleanliness of the working area and reducing the potential harm of dust to the health of surrounding equipment and operators, thereby enhancing the practicality of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a CNC machine tool for precision machining of sensor accessories with dust reduction function proposed in this invention; Figure 2 This is a schematic diagram of the housing and fixed housing of a CNC machine tool for precision machining of sensor accessories with dust reduction function proposed in this invention; Figure 3 This is a full sectional side view of the housing of a CNC machine tool for precision machining of sensor accessories with dust reduction function proposed in this invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the fixed housing of a CNC machine tool for precision machining of sensor accessories with dust reduction function, as proposed in this invention. Figure 6 This is a schematic diagram of the dust pump and second fan blade of a CNC machine tool for precision machining of sensor accessories with dust reduction function, as proposed in this invention. Figure 7 This is a top view of the fixed housing of a CNC machine tool for precision machining of sensor accessories with dust reduction function, as proposed in this invention. Figure 8 This is a schematic diagram of the first fan blade and the second rotating ring of a CNC machine tool for precision machining of sensor accessories with dust reduction function proposed in this invention. Figure 9 This is a cross-sectional view of the polishing disc of a CNC machine tool for precision machining of sensor accessories with dust reduction function proposed in this invention; Figure 10 This is a schematic diagram of the polishing platform structure of a CNC machine tool for precision machining of sensor accessories with dust reduction function, as proposed in this invention. Figure 11 This is a cross-sectional view of the polishing platform of a CNC machine tool for precision machining of sensor accessories with dust reduction function, as proposed in this invention.

[0023] In the diagram: 1. Nitrogen generator; 2. Polishing platform; 3. Water tank; 4. Fixed base; 5. Moving device; 6. Housing; 7. Inlet pipe; 8. Outlet pipe; 9. Water inlet pipe; 10. First motor; 11. Fixed housing; 12. Air pump; 13. First external gear ring; 14. First gear; 15. Second gear; 16. Third gear; 17. Second external gear ring; 18. Water pump; 19. Brush; 20. Polishing disc; 21. Second motor; 22. Dust pump; 23. Fixed ring; 24. First rotating ring; 25. First outlet pipe; 2 6 First fan blade, 27 Second fan blade, 28 Fourth gear, 29 Fifth gear, 30 Suction pipe, 31 Rotating rod, 32 First air outlet, 33 Second air outlet, 34 Trapezoidal air blowing hole, 35 Second rotating ring, 36 Fixed rod, 37 Sixth gear, 38 Internal gear ring, 39 Rotating plate, 40 Suction hole, 41 Fixed block, 42 ​​Arc plate, 43 Electric telescopic rod, 44 Second air outlet pipe, 45 Connecting pipe, 46 Suction fan, 47 Dust collection bag, 48 Conical ring, 49 Air jet pipe. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Reference Figures 1 to 11 A CNC machine tool for precision machining of sensor accessories with dust reduction function includes a polishing platform 2. A clamping mechanism is provided on the top of the polishing platform 2. The clamping mechanism includes two sets of clamping components symmetrically distributed on the top of the polishing platform 2. Each clamping component includes a fixing block 41 fixedly installed on the top of the polishing platform 2. An electric telescopic rod 43 is fixedly connected to the side of the fixing block 41 near the center of the top of the polishing platform 2. An arc-shaped plate 42 is fixedly connected to the end of the electric telescopic rod 43 away from the fixing block 41. A telescopic rod is fixedly connected between the fixing block 41 and the arc-shaped plate 42. To enhance the stability of the clamping components, two sets of clamping components work together. The two arc-shaped plates 42 apply clamping force to the sensor component from both sides, so that the sensor component can maintain a stable position during polishing and avoid displacement due to external forces during polishing. This ensures that the polishing operation can be carried out accurately at the expected location, improving the precision and quality of polishing. The electric telescopic rod 43 can flexibly extend and retract according to the actual size of the sensor component, thereby driving the arc-shaped plates 42 to move to adapt to sensor components of different sizes and specifications, enhancing the versatility of the clamping mechanism.

[0026] A fixed base 4 is provided on the side wall of the polishing platform 2. A moving device 5 is slidably connected to the side of the fixed base 4 near the polishing platform 2. A housing 6 is fixedly installed on the moving device 5. The housing 6 is located above the polishing platform 2. A fixed shell 11 is provided inside the housing 6. A rotating shell is rotatably connected to the bottom of the fixed shell 11 and extends through the bottom of the housing 6. A first external gear ring 13 is fixedly installed on the outer wall of the rotating shell. A polishing disc 20 is fixedly installed on the bottom of the rotating shell. A drive assembly is provided inside the housing 6. The drive assembly includes a first motor 10 fixedly installed on the top of the inner wall of the housing 6. A first gear 14 is fixedly installed on the outer wall of the rotating shaft of the first motor 10. The first gear 14 meshes with the first external gear ring 13 to start the moving device. The actuator 5 drives the housing 6 to move up, down, left, and right (this is existing technology and will not be described in detail here), adjusting the position of the polishing disc 20 so that it is aligned with the sensor. This allows the polishing disc 20 to be precisely aligned with sensor components of different sizes and placement positions, ensuring that the polishing operation can cover all the parts of the sensor component that need polishing, effectively improving the applicability of the device. The first motor 10 is started, causing the first gear 14 to drive the first external gear ring 13 to rotate, so that the polishing disc 20 follows the rotating housing to perform the polishing work. The rotating polishing method can make the contact between the polishing disc 20 and the sensor component more uniform and the polishing force distribution more balanced, avoiding local over-polishing or under-polishing, effectively improving the quality and efficiency of polishing.

[0027] A fixed disc is fixedly installed on the inner wall of the rotating housing, above the polishing disc 20. A first rotating ring 24 is fixedly installed on the top of the fixed disc, and a fixed ring 23 is rotatably connected to the top of the first rotating ring 24. The fixed ring 23 communicates internally with the first rotating ring 24. A vacuum pump 22 is fixedly installed on the top of the inner wall of the outer shell 6, located inside the fixed housing 11 and above the fixed ring 23. The top of the fixed ring 23 is fixedly connected to the bottom of the vacuum pump 22. A nitrogen generator 1 is fixedly installed on the side wall of the polishing platform 2, and the side wall of the nitrogen generator 1 is fixedly connected to... An air pump is fixedly installed on the inner wall of the outer casing 6, with an air inlet pipe 7. The air inlet pipe 7 is fixedly connected to the air pump 12, and an exhaust pipe is fixedly connected to the exhaust end of the air pump 12. The exhaust pipe passes through the fixed casing 11 and is fixedly connected to the fixed ring 23. Multiple first exhaust pipes 25 are fixedly connected to the top of the fixed disc. The multiple first exhaust pipes 25 are arranged in a circumferential array on the fixed disc, and each of the multiple first exhaust pipes 25 is fixedly connected to the first rotating ring 24. When the air pump 12 is working, it draws nitrogen from the nitrogen generator 1 and discharges it through the air inlet pipe 7, the fixed ring 23, and the first rotating ring 24 from the multiple first exhaust pipes 25. The gap between the fixed disc and the polishing disc 20 is fixed. A first vent hole 32 and a second vent hole 33 are arranged around the top of the polishing disc 20, with the first vent hole 32 located on the outer ring and the second vent hole 33 on the inner ring. The diameter of the first vent hole 32 is larger than the diameter of the second vent hole 33. Both the first vent hole 32 and the second vent hole 33 are inclined away from the center of the polishing disc 20, and the inclination angle of the first vent hole 32 is greater than that of the second vent hole 33. Nitrogen gas discharged from the first vent pipe 25 passes through the first vent hole 32 and the second vent hole 33 and is blown towards the sensor's polishing surface. The inclined arrangement of the first and second air outlets 32 and 33 on the polished surface allows the nitrogen gas to be ejected at an outward angle, effectively utilizing the kinetic energy of the airflow to blow away dust particles and prevent dust from accumulating between the polishing disc 20 and the polished surface. Under constant pressure, the larger the orifice diameter, the greater the gas flow rate allowed to pass through per unit time, resulting in a stronger airflow. The outer ring first air outlet 32 ​​has a large diameter and a large inclination angle, which can quickly and efficiently blow dust out of narrow spaces. The inner ring second air outlet 33 has a small diameter and a small inclination angle, which can finely remove tiny particles. The two work together to remove dust from all directions.

[0028] A suction hole 40 is provided through the top center of the polishing disc 20. The diameter of the suction hole 40 gradually increases from top to bottom. A suction pipe 30 is fixedly connected to the top center of the polishing disc 20. The suction pipe 30 is connected to the suction hole 40 and passes through the fixed disc, the first rotating ring 24, and the fixed ring 23, and is fixedly connected to the dust pump 22. The suction pipe 30 is rotatably connected to the fixed disc. A discharge pipe 8 is fixedly connected to the side wall of the dust pump 22. For dust between the polishing disc 20 and the sensor polishing surface, the closer to the center, the more difficult it is to blow out. However, the suction hole 40 is located at the top center of the polishing disc 20, which can directly suck up the dust that is difficult to blow out in the central area, thus avoiding dust accumulation in the center. Continuous accumulation ensures the cleanliness of the polishing work area, facilitating the continuous and efficient polishing process. The diameter of the suction hole 40 gradually increases from top to bottom. Given the relatively high airflow resistance in the central area of ​​the polishing disc 20, this diameter variation design allows airflow to enter the suction hole 40 more smoothly during suction, enabling more efficient dust removal and improving the overall efficiency of the dust collection system. This allows dust to be promptly drawn away by the dust pump 22 through the suction pipe 30, preventing dust from accumulating in large quantities near the polishing surface and re-adhering to the sensor polishing surface during polishing, which could lead to scratches, defects, and other quality problems. This helps improve the polishing quality and ensures the final quality of the sensor product.

[0029] A ring of trapezoidal air holes 34 is provided through the top of the polishing disc 20, located between the second air outlet 33 and the suction hole 40. The width of the trapezoidal air holes 34 gradually increases from top to bottom. Two rotating plates 39 are rotatably connected to the inner wall of the trapezoidal air holes 34, dividing the interior of the trapezoidal air holes 34 into three channels. When there is a lot of dust generated during polishing, the two rotating plates 39 rotate, with their tops approaching each other and their bottoms moving away from each other. This causes the width of the channels on both sides to gradually decrease from top to bottom, narrowing the air outlets on both sides. According to the principles of fluid mechanics, when the gas flow rate is constant, a smaller channel cross-sectional area will increase the gas velocity, thereby increasing... The speed and power of the airflow can more effectively blow dust out of the area between the polishing disc 20 and the polishing surface, or precisely blow it towards designated areas such as the dust collection area, improving the ability to remove large amounts of dust and ensuring that the polishing surface can be kept clean in a timely manner, avoiding excessive dust accumulation that affects the polishing quality. When there is less dust, the tops of the two rotating plates 39 move away from each other and the bottoms move closer to each other, making the width of the channels on both sides gradually increase from top to bottom. The air outlets of the channels on both sides become wider, and the airflow power is reduced accordingly. This prevents the small amount of dust from being excessively blown away and flying into the surrounding environment due to excessive airflow, maintaining the overall cleanliness of the work area and reducing the potential harm of dust to the health of surrounding equipment and operators.

[0030] A water tank 3 is fixedly installed on the side of the polishing platform 2 away from the nitrogen generator 1. A water pump 18 is fixedly installed on the side wall of the outer casing 6. A water inlet pipe 9 is fixedly connected to the top of the water tank 3, and the water inlet pipe 9 is fixedly connected to the water pump 18. A water outlet pipe is fixedly connected to the water outlet end of the water pump 18. The water outlet pipe passes through the outer casing 6 and the fixed housing 11 and is fixedly connected to the fixed ring 23. An atomizing nozzle (not shown in the figure) is fixedly connected to the end of the water outlet pipe. The atomizing nozzle is located inside the fixed ring 23. When the water pump 18 is started, it draws water from the water tank 3. The water mist sprayed from the atomizing nozzle inside the fixed ring 23 mixes with the nitrogen inside and is then sprayed out from the first gas outlet pipe 25. The airflow itself can blow and disperse dust, while the water mist further moistens and fixes the dust. The two complement each other, enhancing the control and removal of dust, making the dust reduction work more comprehensive and efficient. They give full play to their respective advantages to deal with dust conditions under different states during the polishing process. Polishing in a humid environment, because the dust is effectively controlled, avoids the friction and embedding of dust particles between the polishing surface and the polishing disc 20, making the polished surface of the sensor component smoother and flatter, reducing surface defects caused by dust, helping to improve the quality and precision of polishing, and ensuring the final quality of the product.

[0031] A second motor 21 is fixedly mounted on the top of the fixed disk. A rotating rod 31 is fixedly connected to the output end of the second motor 21. A sixth gear 37 and a fifth gear 29 are fixedly mounted on the side wall of the rotating rod 31. The sixth gear 37 is located below the fixed disk, and the fifth gear 29 is located below the sixth gear 37. A circular groove is provided at the bottom of the fixed disk, and multiple fixed rods 36 are slidably connected to the circular groove. The multiple fixed rods 36 are arranged in a circumferential array at the bottom of the fixed disk. An internal gear ring 38 is provided at the bottom of the fixed disk. The top of the internal gear ring 38 is fixedly connected to the bottom of the multiple fixed rods 36. A second rotating ring 35 is rotatably connected to the inner wall of the rotating housing. The second rotating ring 35 corresponds to the internal gear ring 38, and the second rotating ring 35 and the internal gear ring 38 are fixedly connected. Multiple first fan blades 26 are connected, arranged in a circumferential array on the outer wall of an inner gear ring 38. The inner gear ring 38 meshes with a sixth gear 37. A fourth gear 28 is rotatably connected to the outer wall of a suction pipe 30, meshing with a fifth gear 29. A rotating ring is rotatably connected to the outer wall of the suction pipe 30, with the bottom of the fourth gear 28 fixedly connected to the top of the rotating ring. Multiple second fan blades 27 are fixedly mounted on the outer wall of the rotating ring, arranged in a circumferential array. The first fan blades 26 are located above the second fan blades 27 on their outer ring. Small holes are provided on both the first fan blades 26 and the second fan blades 27. During the polishing process, a second motor 21 is started, and a rotating rod 31 drives the fifth gear 29 and the sixth gear 37 to rotate. The fifth gear 29 drives the fourth gear 28 to rotate, and the sixth gear 37 drives the internal gear ring 38 to rotate, causing the first fan blade 26 and the second fan blade 27 to rotate. The airflow generated by the rotation of the first fan blade 26 causes nitrogen and water mist to be discharged quickly and evenly from the first air outlet 32, the second air outlet 33, and the trapezoidal air blowing hole 34, ensuring that the entire surface of the polishing disc 20 is adequately covered with gas and water mist, so that dust can be effectively disturbed in all areas, improving the comprehensiveness and uniformity of dust removal. The rotation of the second fan blade 27 in the inner ring can enhance the airflow intensity blown out from the trapezoidal air blowing hole 34. Since there is often relatively large flow resistance in the central area, making it difficult for dust to be blown away, the rotation of the second fan blade 27 makes it easier to blow away dust near the central area. The dust particles move towards the center, facilitating subsequent centralized cleaning of the dust accumulated in the center via the suction port 40 and suction pipe 30. This enhances the dust handling capacity of the central area, thereby further improving the overall polishing quality. During polishing, larger water mist particles easily condense into water droplets on the surface of the polishing disc 20. The rotation of the first blade 26 and the second blade 27 further refines the water mist particles through shearing force, preventing them from forming water droplets. The refined water mist particles can be better evenly distributed on the surface of the polishing disc 20, avoiding local water accumulation that affects the polishing operation. Furthermore, the finer water mist particles can make more thorough contact with the dust particles, more effectively wetting the dust, making it easier for the dust particles to be sucked away by the dust collection device or discharged with the airflow, thus enhancing the dust reduction effect.The small holes on the first blade 26 and the second blade 27 increase the flow path of nitrogen, making the flow of nitrogen within the device smoother and more widely distributed, while also helping to further refine the water mist particles.

[0032] A brush 19 is rotatably connected to the outer wall of the fixed housing 11. The inner wall of the brush 19 contacts the side wall of the polishing disc 20. A second external gear ring 17 is fixedly installed on the top of the brush 19. A second gear 15 is fixedly installed on the side wall of the rotating shaft of the first motor 10. The second gear 15 is located below the first gear 14. A third gear 16 is rotatably connected to the inner wall of the housing 6 via a rotating shaft. The third gear 16 is located between the second external gear ring 17 and the second gear 15, and meshes with the second external gear ring 17 and the second gear 15. When the first motor 10 starts, the second gear 15 drives the third gear 16 to rotate, and the third gear 16 drives the second external gear ring 17 to rotate. The brush 19 follows the rotation of the second external gear ring 17 to clean the outer wall of the polishing disc 20. The brush 19 rotates in the opposite direction to the polishing disc 20, achieving a more comprehensive and uniform cleaning of the outer wall of the polishing disc 20, avoiding dead corners where cleaning is not thorough, and ensuring the cleanliness of the polishing disc 20. The cleanliness of the overall outer wall helps maintain its good performance during operation and ensures stable polishing quality on the object surface. A conical ring 48 is fixedly installed at the bottom of the outer shell 6. The conical ring 48 is sleeved on the outer wall of the brush 19. Multiple air jet pipes 49 are provided at the bottom of the conical ring 48. The air jet pipes 49 are distributed in a circumferential array at the bottom of the conical ring 48. When the brush 19 rotates, it rubs against the conical ring 48. The friction generates an electrostatic effect, which can adsorb the passing dust particles and prevent the dust from re-accumulating on the polishing surface. The air jet pipes 49 can blow the dust off the brush 19.

[0033] Two grooves are symmetrically distributed on both sides of the clamping mechanism, and are provided through the top of the polishing platform 2. These grooves can collect dust from different positions on the top of the polishing platform 2. A dust collection box is fixedly installed on the bottom of the inner wall of the polishing platform 2. The two grooves are respectively connected to the dust collection box by connecting pipes 45, and the connecting pipes 45 are inclined downwards. A dust collection bag 47 is provided at the end of the connecting pipe 45 away from the groove. The dust collection bag 47 is located inside the dust collection box. An air suction fan 46 is fixedly installed inside the dust collection box. A second air outlet pipe 44 is fixedly connected to the side wall of the dust collection box. Pipe 44 extends through the polishing platform 2. The end of the discharge pipe 8 away from the dust pump 22 is fixedly connected to the corresponding connecting pipe 45. During the polishing process, the dust in the central area of ​​the polishing disc 20 is sucked by the dust pump 22 through the suction pipe 30 and the suction hole 40 and enters the corresponding connecting pipe 45 through the discharge pipe 8. The suction fan 46 is started to generate negative pressure. The dust is sucked into the connecting pipe 45 from multiple directions, which greatly improves the range and efficiency of dust collection. Finally, the dust is left in the dust collection bag 47, and the gas is discharged from the second exhaust pipe 44 after being filtered by the dust collection bag 47.

[0034] In this invention, the sensor is placed on the polishing platform 2. After the position of the sensor is adjusted, the electric telescopic rod 43 is activated and the arc plate 42 is used to clamp the sensor so that the surface to be polished is facing the polishing disk 20 to ensure that it will not move or be misaligned during the polishing process. Then, the moving device 5 is activated to adjust the position of the polishing disk 20 up, down, left and right (this is the prior art and will not be described in detail here). Then the sensor is polished.

[0035] When polishing begins, the first motor 10 is started, causing the first gear 14 to rotate, which in turn drives the first external gear ring 13 to rotate. The rotating housing drives the polishing disc 20 to rotate and polish. Simultaneously, the air pump 12 is started, supplying nitrogen from the nitrogen generator 1 through the inlet pipe 7, air pump 12, first rotating ring 24, and first outlet pipe 25 to the top of the polishing disc 20. Finally, the nitrogen is discharged through the first outlet hole 32 and the second outlet hole 33 on the polishing disc 20. During the polishing process, a large amount of dust is generated. This dust easily accumulates between the polishing disc 20 and the polished surface of the sensor, which not only... The polishing disc 20 has an inclined first air outlet 32 ​​and a second air outlet 33, which effectively utilize the kinetic energy of the airflow to blow away dust particles. The first air outlet 32 ​​on the outer ring ensures that the dust can be blown out of the narrow space between the polishing disc 20 and the polishing surface more quickly and effectively. The smaller diameter of the second air outlet 33 can limit the airflow and prevent the airflow from being too large, which would cause the dust to scatter and affect the cleanliness of the polishing environment. The cooperation between the second air outlet 33 and the first air outlet 32 ​​ensures the continuity and stability of the polishing process.

[0036] The polishing disc 20 also has a suction hole 40, which is connected to the dust pump 22 via the suction pipe 30. The suctioned dust is finally transported to the connecting pipe 45 through the discharge pipe 8. For the dust between the polishing disc 20 and the sensor polishing surface, the suction hole 40 directly targets the dust that is difficult to blow out in the central area, effectively solving the problem of dust accumulation. The trapezoidal air outlet 34 is located between the first air outlet 32, the second air outlet 33 and the suction hole 40. It allows the airflow to blow inward and outward simultaneously, assisting the first air outlet 32 ​​and the second air outlet. 33. The suction hole 40 functions better. The trapezoidal blowing hole 34 has an adjustable rotating plate 39. By adjusting the angle of the rotating plate 39, the cross-sectional area of ​​the airflow channels on both sides of the trapezoidal blowing hole 34 can be changed, thereby affecting the airflow. By combining the blowing of air through the first air outlet 32 ​​and the second air outlet 33, the auxiliary blowing of air through the trapezoidal blowing hole 34, and the suction of air through the suction hole 40, the dust between the polishing disc 20 and the sensor polishing surface can be completely removed. The polishing surface can be kept cleaner and smoother, thereby improving the polishing quality.

[0037] When the air pump 12 starts blowing air, the water pump 18 starts simultaneously to draw water from the water tank 3. The water mist sprayed from the atomizing nozzle mixes with nitrogen and is sprayed out together. When the water mist comes into contact with the polished surface of the sensor, they can form a thin wet layer. This wet layer can effectively capture and fix the tiny dust particles generated during the polishing process, so that the dust is not easy to fly in the air, thereby reducing the dust concentration in the air.

[0038] During the polishing process, the second motor 21 starts, and the rotating rod 31 rotates, which in turn drives the fourth gear 28 and the internal gear ring 38 to rotate through the fifth gear 29 and the sixth gear 37. This, in turn, drives the first fan blade 26 and the second fan blade 27 to rotate. When the first fan blade 26 rotates, it can generate airflow, which delivers nitrogen and water mist more quickly and evenly from the first air outlet 32, the second air outlet 33, and the trapezoidal air blowing hole 34. When the second fan blade 27 rotates, it can enhance the airflow intensity blown out from the trapezoidal air blowing hole 34. The small holes on the first fan blade 26 and the second fan blade 27 can not only increase the flow path of nitrogen, but also, when water mist passes through the small holes, it will be refined into smaller particles by shear force.

[0039] When the first motor 10 starts, the second gear 15, the third gear 16, and the second external gear ring 17 can make the brush 19 rotate in the opposite direction to the polishing disc 20. The relative speed between the two increases, which helps to remove the dust generated during the polishing process more effectively and prevent it from accumulating on the polishing surface, thereby keeping the polishing surface clean and smooth. When the brush 19 rotates, it will rub against the conical ring 48 to generate an electrostatic effect, which can adsorb the passing dust particles. The air jet pipe 49 can blow the dust off the brush 19 and then suck it into the connecting pipe 45.

[0040] The polishing platform 2 has a groove, and the two ends of the groove are connected to inclined connecting pipes 45. This not only helps guide the flow of dust, but also provides a concentrated area, making it easier for dust to be sucked into the connecting pipes 45, reducing the spread of dust on the platform surface, and improving the dust collection efficiency. During the polishing process, the suction fan 46 is started to generate negative pressure, which causes the dust to be sucked into the connecting pipes 45 and finally left in the dust collection bag 47, while the clean gas is discharged from the second exhaust pipe 44.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CNC machine tool for precision machining of sensor accessories with dust reduction function, comprising a polishing platform (2), characterized in that, Also includes: A clamping mechanism is disposed on top of the polishing platform (2); The outer shell (6) is set above the polishing platform (2) by a movable component. A fixed housing (11) is fixedly installed on the top of the inner wall of the outer shell (6). A rotating housing is rotatably connected to the bottom of the fixed housing (11). The rotating housing passes through the bottom of the outer shell (6). A polishing disc (20) is fixedly installed on the bottom of the rotating housing. A driving component is provided inside the outer shell (6). The driving component is used to drive the polishing disc (20) to rotate. The top of the polishing disc (20) is provided with a first air outlet (32) and a second air outlet (33). The first air outlet (32) is located on the outer ring, and the second air outlet (33) is located on the inner ring. The diameter of the first air outlet (32) is larger than that of the second air outlet (33). Both the first air outlet (32) and the second air outlet (33) are inclined away from the center of the polishing disc (20), and the inclination angle of the first air outlet (32) is larger than that of the second air outlet (33). A blowing mechanism is provided above the polishing disc (20). A suction hole (40) is provided through the center of the top of the polishing disc (20). The diameter of the suction hole (40) gradually increases from top to bottom. The suction hole (40) is connected to a dust collection component. The top of the polishing disc (20) is provided with a ring of trapezoidal air holes (34), and the trapezoidal air holes (34) are located between the second air outlet (33) and the air intake (40). The width of the trapezoidal air holes (34) gradually increases from top to bottom. The inner wall of the trapezoidal air holes (34) is rotatably connected to two rotating plates (39), and the two rotating plates (39) divide the interior of the trapezoidal air holes (34) into three channels.

2. The CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 1, characterized in that, The clamping mechanism includes two sets of clamping components, which are symmetrically distributed on the top of the polishing platform (2). Each clamping component includes a fixing block (41) fixedly installed on the top of the polishing platform (2). An electric telescopic rod (43) is fixedly connected to one side of the fixing block (41) near the center of the top of the polishing platform (2). An arc plate (42) is fixedly connected to one end of the electric telescopic rod (43) away from the fixing block (41).

3. The CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 1, characterized in that, The movable component includes a fixed base (4) disposed on the side wall of the polishing platform (2), and a movable device (5) is slidably connected to the fixed base (4) on the side near the polishing platform (2). The outer shell (6) is fixedly installed on the movable device (5).

4. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 1, characterized in that, The outer wall of the rotating housing is fixedly mounted with a first external gear ring (13), and the drive assembly includes a first motor (10) fixedly mounted on the top of the inner wall of the housing (6). The outer wall of the rotating shaft of the first motor (10) is fixedly mounted with a first gear (14), and the first gear (14) meshes with the first external gear ring (13).

5. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 4, characterized in that, A brush (19) is rotatably connected to the outer wall of the fixed housing (11). The inner wall of the brush (19) is in contact with the side wall of the polishing disc (20). A second external gear ring (17) is fixedly installed on the top of the brush (19). A second gear (15) is fixedly installed on the side wall of the rotating shaft of the first motor (10). The second gear (15) is located below the first gear (14). A third gear (16) is rotatably connected to the inner wall of the outer shell (6) through a rotating shaft. The third gear (16) is located between the second external gear ring (17) and the second gear (15) and meshes with the second external gear ring (17) and the second gear (15). A conical ring (48) is fixedly installed at the bottom of the outer shell (6). The conical ring (48) is sleeved on the outer wall of the brush (19). A plurality of jet pipes (49) are provided at the bottom of the conical ring (48). The jet pipes (49) are arranged in a circumferential array at the bottom of the conical ring (48).

6. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 1, characterized in that, A fixed disc is fixedly installed on the inner wall of the rotating housing. The fixed disc is located above the polishing disc (20). A first rotating ring (24) is fixedly installed on the top of the fixed disc. A fixed ring (23) is rotatably connected to the top of the first rotating ring (24). The blowing mechanism includes a nitrogen generator (1) fixedly installed on the side wall of the polishing platform (2). An air inlet pipe (7) is fixedly connected to the side wall of the nitrogen generator (1). An air pump (12) is fixedly installed on the inner wall of the outer shell (6). The air inlet pipe (7) is fixedly connected to the air pump (12). An exhaust pipe is fixedly connected to the exhaust end of the air pump (12). The exhaust pipe passes through the fixed housing (11) and is fixedly connected to the fixed ring (23). A plurality of first exhaust pipes (25) are fixedly connected to the top of the fixed disc. The plurality of first exhaust pipes (25) are arranged in a circumferential array on the fixed disc. The plurality of first exhaust pipes (25) are all fixedly connected to the first rotating ring (24).

7. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 6, characterized in that, The vacuuming assembly includes a vacuum pump (22) fixedly installed on the top of the inner wall of the housing (6). The vacuum pump (22) is located inside the fixed housing (11) and above the fixed ring (23). The top of the fixed ring (23) is fixedly connected to the bottom of the vacuum pump (22). The top center of the polishing disc (20) is fixedly connected to the vacuum pump (22) by a suction pipe (30), and the suction pipe (30) is connected to the suction hole (40). The suction pipe (30) passes through the fixed disc, the first rotating ring (24) and the fixed ring (23). The suction pipe (30) is rotatably connected to the fixed disc. The side wall of the vacuum pump (22) is fixedly connected to the discharge pipe (8).

8. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 7, characterized in that, The top of the polishing platform (2) has two grooves that are symmetrically distributed on both sides of the clamping mechanism. A dust collection box is fixedly installed on the bottom of the inner wall of the polishing platform (2). The two grooves are respectively connected to the dust collection box by a connecting pipe (45), and the connecting pipe (45) is inclined downward. A dust collection bag (47) is provided at the end of the connecting pipe (45) away from the groove. The dust collection bag (47) is located inside the dust collection box. An air suction fan (46) is fixedly installed inside the dust collection box. A second air outlet pipe (44) is fixedly connected to the side wall of the dust collection box. The second air outlet pipe (44) extends through the polishing platform (2). The discharge pipe (8) is fixedly connected to the corresponding side connecting pipe (45).

9. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 6, characterized in that, A water tank (3) is fixedly installed on the side of the polishing platform (2) away from the nitrogen generator (1). A water pump (18) is fixedly installed on the side wall of the outer shell (6). The water pump (18) is fixedly connected to the water tank (3) by an inlet pipe (9). The outlet end of the water pump (18) is fixedly connected to an outlet pipe. The outlet pipe passes through the outer shell (6) and the fixed shell (11) and is fixedly connected to the fixed ring (23). The end of the outlet pipe is fixedly connected to an atomizing nozzle. The atomizing nozzle is located inside the fixed ring (23).

10. A CNC machine tool for precision machining of sensor accessories with dust reduction function according to claim 7, characterized in that, A second motor (21) is fixedly installed on the top of the fixed disk. A rotating rod (31) is fixedly connected to the output end of the second motor (21). A sixth gear (37) and a fifth gear (29) are fixedly installed on the side wall of the rotating rod (31). The sixth gear (37) is located below the fixed disk, and the fifth gear (29) is located below the sixth gear (37). A circular groove is provided at the bottom of the fixed disk. Multiple fixed rods (36) are slidably connected to the circular groove. The multiple fixed rods (36) are arranged in a circumferential array at the bottom of the fixed disk. An internal gear ring (38) is provided below the fixed disk. The top of the internal gear ring (38) is fixedly connected to the bottom of the multiple fixed rods (36). A second rotating ring (35) is rotatably connected to the inner wall of the rotating housing. The second rotating ring (35) corresponds to the internal gear ring (38). Multiple first blades (26) are fixedly connected between the second rotating ring (35) and the internal gear ring (38). The multiple first blades (26) are arranged in a circumferential array on the outer wall of the internal gear ring (38). The internal gear ring (38) meshes with the sixth gear (37). The outer wall of the suction pipe (30) is rotatably connected to the fourth gear (28). The fourth gear (28) meshes with the fifth gear (29). The outer wall of the suction pipe (30) is rotatably connected to the rotating ring. The bottom of the fourth gear (28) is fixedly connected to the top of the rotating ring. Multiple second blades (27) are fixedly installed on the outer wall of the rotating ring. The multiple second blades (27) are arranged in a circumferential array on the outer wall of the rotating ring. The first blades (26) are located on the outer ring above the second blades (27). Small holes are opened on both the first blades (26) and the second blades (27).

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