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

Abstract

The application relates to the technical field of sensor precision machining, in particular to a numerical control machine tool with dust reduction function for sensor accessory precision machining, which comprises a polishing platform, further comprises a clamping mechanism and a shell, a fixed shell is fixedly installed at the top of the inner wall of the shell, 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 arranged in the top of the polishing disc, an air suction hole is arranged in the top center of the polishing disc, and a circle of trapezoidal air blowing holes is arranged in the top of the polishing disc. The application can timely and comprehensively treat the dust generated in the polishing process, ensures the uniformity and consistency of sensor polishing, avoids the accumulation of dust on the polishing surface, prevents the polishing surface from being scratched and worn due to the dust particles being mixed between the polishing disc and the sensor parts, and guarantees the polishing precision and quality.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sensor precision machining, and particularly relates to a numerical control machine tool with a dust reduction function for precision machining of sensor accessories. BACKGROUND

[0002] In modern manufacturing, the machining precision and surface quality of sensor accessories play a crucial role in their performance and reliability. Sensor accessories are often precisely machined using numerical control machine tools. As a key process in the machining of sensor components, polishing aims to remove surface defects and obtain a smooth surface to meet the stringent requirements of sensors in terms of sensitivity, stability and durability.

[0003] During polishing, a large amount of dust particles is inevitably generated due to the friction between the abrasive and the workpiece surface. These dust particles can contaminate the working environment and adversely affect the polishing equipment. If the dust particles remain on the surface of the sensor components, they will increase the surface roughness and affect the performance of the sensor.

[0004] The application patent with the publication number CN116551545A discloses a dust-reducing polishing device for sensor component machining, which comprises a platform, the outer surfaces of the I-shaped slide and the flat plate are provided with polishing modules, a gas flow guide module is arranged at the bottom of the platform and close to the inner surface position of the water storage tank, a conduit is fixedly connected to the top of the water storage tank and close to the position of the fan, the top end of the conduit is installed at the bottom of the gas flow guide module, and the working end of the fan is installed on the outer surface of the conduit. The device achieves the effect of dust removal, timely processes the dust and grinding chips generated during polishing, reduces the influence of dust and grinding chips, ensures high polishing quality, and reduces the amount of dust inhaled by the human body.

[0005] Although the above-mentioned patent has certain beneficial effects, the airflow blown out of the exhaust hole can only cover a very limited area and can only have an effect on a small range around the center of the polishing disc. It is difficult to reach the edge of the polishing disc and other positions far from the center. The intensity of the airflow will quickly decay during the diffusion process, and it is difficult to provide enough strong and continuous force to completely blow away the dust and grinding chips at each position. This results in poor overall impurity blowing effect, uneven impurity removal degree in each area of the polishing disc surface, relatively clean center area, but still a large amount of dust and grinding chips remaining in the edge area. It is difficult to ensure that the entire working area of the polishing disc is in a good cleaning state, which affects the uniformity and consistency of the polishing of the sensor components and further affects the polishing quality, resulting in poor practicability of the equipment. SUMMARY

[0006] The application aims to solve the problem of poor practicability of the existing equipment, and provides a numerical control machine tool with a dust reduction function for precision machining of sensor accessories.

[0007] To achieve the above object, the present application adopts the following technical scheme: a numerical control machine tool with dust reduction function for precision machining of sensor accessories, comprising a polishing platform, further comprising:

[0008] A clamping mechanism is arranged on the top of the polishing platform.

[0009] An outer shell is arranged above the polishing platform through a moving assembly, a fixed shell is fixedly installed on the top of the inner wall of the outer shell, a rotating shell is rotatably connected to the bottom of the fixed shell, the rotating shell penetrates the bottom of the outer shell, a polishing disc is fixedly installed on the bottom of the rotating shell, and a driving assembly is arranged in the outer shell and used to drive the polishing disc to rotate.

[0010] A circle of first air outlets and a circle of second air outlets are arranged on the top of the polishing disc, the first air outlets are located on the outer circle, and the second air outlets are located on the inner circle, the aperture of the first air outlets is larger than that of the second air outlets, the first air outlets and the second air outlets are inclined away from the center of the polishing disc, and the inclination angle of the first air outlets is larger than that of the second air outlets, a blowing mechanism is arranged above the polishing disc, an air suction hole is arranged on the top center of the polishing disc, the aperture of the air suction hole gradually increases from top to bottom, and a dust suction assembly is in communication with the air suction hole.

[0011] A circle of trapezoidal blowing holes is arranged on the top of the polishing disc and located between the second air outlets and the air suction hole, the width of the trapezoidal blowing holes gradually increases from top to bottom, and two rotating plates are rotatably connected to the inner wall of the trapezoidal blowing holes, which divide the inside of the trapezoidal blowing holes into three channels.

[0012] Preferably, the clamping mechanism comprises two groups of clamping assemblies, the two groups of clamping assemblies are symmetrically distributed on the top of the polishing platform, the clamping assembly comprises a fixed block fixedly installed on the top of the polishing platform, an electric telescopic rod is fixedly connected to the side of the fixed block close to 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.

[0013] Preferably, the moving assembly comprises a fixed base arranged on the side wall of the polishing platform, a moving device is slidably connected to the side of the fixed base close to the polishing platform, and the outer shell is fixedly installed on the moving device.

[0014] Preferably, a first outer gear ring is fixedly installed on the outer wall of the rotating shell, the driving assembly comprises a first motor fixedly installed on the top of the inner wall of the outer shell, a first gear is fixedly installed on the outer wall of the rotating shaft of the first motor, and the first gear is engaged with the first outer gear ring.

[0015] Preferably, the outer wall of the fixed shell is rotationally connected with a brush, the inner wall of the brush is in contact with the side wall of the polishing disc, the top of the brush is fixedly installed with a second outer gear ring, the rotation shaft side wall of the first motor is fixedly installed with a second gear, and the second gear is located below the first gear, the inner wall of the shell is rotationally connected with a third gear through a rotating shaft, the third gear is located between the second outer gear ring and the second gear and is engaged with the second outer gear ring and the second gear, the bottom of the shell is fixedly installed with a conical ring, the conical ring is sleeved on the outer wall of the brush, and the bottom of the conical ring is provided with a plurality of air injection pipes which are circumferentially arranged on the bottom of the conical ring.

[0016] Preferably, the inner wall of the rotating shell is fixedly installed with a fixed disc, the fixed disc is located above the polishing disc, the top of the fixed disc is fixedly installed with a first rotating ring, the top of the first rotating ring is rotationally connected with a fixed ring, the air blowing mechanism comprises a nitrogen generating device fixedly installed on the side wall of the polishing platform, the side wall of the nitrogen generating device is fixedly communicated with an air inlet pipe, the inner wall of the shell is fixedly installed with an air pump, the air inlet pipe is fixedly communicated with the air pump, the exhaust end of the air pump is fixedly communicated with an exhaust pipe, the exhaust pipe penetrates through the fixed shell and is fixedly communicated with the fixed ring, and the top of the fixed disc is fixedly connected with a plurality of first air outlet pipes which are circumferentially arranged on the fixed disc, and the plurality of first air outlet pipes are fixedly communicated with the first rotating ring.

[0017] Preferably, the dust suction assembly comprises a dust suction pump fixedly installed on the top of the inner wall of the shell, the dust suction pump is located in the fixed shell and above the fixed ring, the top of the fixed ring is fixedly connected with the bottom of the dust suction pump, the top of the polishing disc is fixedly communicated with a material suction pipe which is fixedly communicated with the air suction hole, the material suction pipe penetrates through the fixed disc, the first rotating ring and the fixed ring, the material suction pipe is rotationally connected with the fixed disc, and the side wall of the dust suction pump is fixedly communicated with a material outlet pipe.

[0018] Preferably, the top of the polishing platform is provided with two grooves which are symmetrically distributed on the two sides of the clamping mechanism, the inner wall of the polishing platform is fixedly installed with a dust collection box at the bottom, the two grooves are respectively fixedly communicated with communication pipes which are fixedly communicated with the dust collection box and are inclined downward, and the end of the communication pipe away from the groove is provided with a dust collection bag which is located in the dust collection box, the inside of the dust collection box is fixedly installed with an air suction fan, the side wall of the dust collection box is fixedly communicated with a second air outlet pipe which penetrates through and extends out of the polishing platform, and the material outlet pipe is fixedly communicated with the communication pipe on the corresponding side.

[0019] Preferably, the polishing platform is fixedly installed with a water tank on the side away from the nitrogen generating device, a water pump is fixedly installed on the side wall of the shell, the water pump is fixedly communicated with the water tank through a water inlet pipe, the water outlet end of the water pump is fixedly communicated with a water outlet pipe, the water outlet pipe penetrates the shell and the fixed shell and is fixedly communicated with the fixed ring, the end of the water outlet pipe is fixedly communicated with an atomizing nozzle, and the atomizing nozzle is located in the fixed ring.

[0020] Preferably, the top of the fixed disc is fixedly installed with a second motor, the output end of the second motor is fixedly connected with a rotating rod, the side wall of the rotating rod is fixedly installed with a sixth gear and a fifth gear, the sixth gear is located below the fixed disc, the fifth gear is located below the sixth gear, the bottom of the fixed disc is provided with a circular ring groove, a plurality of fixed rods are slidably connected with the circular ring groove, the plurality of fixed rods are circumferentially arranged at the bottom of the fixed disc, the bottom of the fixed disc is provided with an inner tooth ring, the top of the inner tooth ring is fixedly connected with the bottom of the plurality of fixed rods, the inner wall of the rotating shell is rotatably connected with a second rotating ring, the second rotating ring corresponds to the inner tooth ring, a plurality of first blades are fixedly connected between the second rotating ring and the inner tooth ring, the plurality of first blades are circumferentially arranged on the outer wall of the inner tooth ring, the inner tooth ring is meshed with the sixth gear, the outer wall of the suction pipe is rotatably connected with a fourth gear, the fourth gear is meshed with the fifth gear, the outer wall of the suction pipe is rotatably connected with a rotating ring, the bottom of the fourth gear is fixedly connected with the top of the rotating ring, the outer wall of the rotating ring is fixedly installed with a plurality of second blades, the plurality of second blades are circumferentially arranged on the outer wall of the rotating ring, the first blades are located above the outer circle of the second blades, and a plurality of small holes are formed in the first blades and the second blades.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1、The present application blows nitrogen from the first and second gas outlets at different positions, different apertures and different angles of inclination on the polishing disc, the first and second gas outlets cooperate to remove dust in all directions, effectively utilizes the kinetic energy of the gas flow to blow the dust particles generated during polishing away from the polishing surface, the suction hole sucks the dust that is difficult to blow away in the central area, the aperture gradually increases from top to bottom to ensure smooth and efficient suction process, avoids dust accumulation in the central position, the rotating plate is arranged inside the trapezoidal gas blowing hole, the angle of the rotating plate is adjusted according to the amount of dust, the width of the gas outlet on both sides of the trapezoidal gas blowing hole is changed, and then the blowing speed and force are adjusted, the dust flow is effectively controlled, unnecessary dust flying is avoided, through the cooperation of the trapezoidal gas blowing hole, the suction hole and the gas outlet, a dust removal mechanism in all directions and high efficiency is formed, so that the dust generated during polishing can be timely and comprehensively treated, dust accumulation on the polishing surface is avoided, polishing surface scratches, wear and other problems caused by dust particles mixed between the polishing disc and the sensor component are prevented, the polishing precision and quality are ensured, the sensor component can obtain a smooth and flat polishing surface, and the flying of dust in the working area is avoided, thereby improving the working environment of the operator.

[0023] 2、The present application is characterized in that a water pump and a water tank are arranged, the water pump pumps water which is sprayed through an atomizing nozzle, the water mist is mixed with nitrogen in the fixed ring and discharged together from the first gas outlet pipe, the water mist can wet and fix the dust, avoid the friction and embedding of dust particles between the polishing surface and the polishing disc, make the polishing surface of the sensor component smoother and flatter, reduce surface defects, and improve the polishing quality and precision.

[0024] 3、The present application is characterized in that a first fan blade and a second fan blade are arranged, the rotation of the first fan blade promotes the rapid and uniform discharge of nitrogen and water mist from each gas hole, ensures that the polishing disc surface is fully covered with gas and water mist, improves 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, facilitates the treatment of dust accumulated in the center, refines the water mist particles through shear force, makes the distribution of the water mist particles more uniform and easier to wet the dust, thereby enhancing the dust reduction effect, and the small holes on the fan blade also help to increase the nitrogen flow path and further refine the water mist particles.

[0025] 4、The present application is characterized in that a brush and a conical ring are arranged, the brush rotates in the opposite direction of the polishing disc to clean the outer wall of the polishing disc comprehensively and uniformly, prevent dust from accumulating on the outer wall of the polishing disc, the brush and the conical ring generate electrostatic effect through friction to adsorb passing dust particles, prevent dust from re-accumulating on the polishing surface, and the air jet pipe on the conical ring can blow the dust on the brush, further cooperating with dust collection.

[0026] 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

[0027] 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;

[0028] 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, as proposed in this invention.

[0029] 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;

[0030] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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;

[0036] 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.

[0037] Figure 11A polishing platform sectional view of a numerical control machine tool with dust reduction function for sensor accessory precision machining is provided.

[0038] In the figure: 1 nitrogen generation device, 2 polishing platform, 3 water tank, 4 fixed base, 5 moving device, 6 shell, 7 air inlet pipe, 8 discharge pipe, 9 water inlet pipe, 10 first motor, 11 fixed shell, 12 air pump, 13 first outer gear ring, 14 first gear, 15 second gear, 16 third gear, 17 second outer gear ring, 18 water pump, 19 brush, 20 polishing disc, 21 second motor, 22 dust collection pump, 23 fixed ring, 24 first rotating ring, 25 first air outlet pipe, 26 first fan blade, 27 second fan blade, 28 fourth gear, 29 fifth gear, 30 suction pipe, 31 rotating rod, 32 first air outlet hole, 33 second air outlet hole, 34 trapezoidal air blowing hole, 35 second rotating ring, 36 fixed rod, 37 sixth gear, 38 inner gear ring, 39 rotating plate, 40 air inlet hole, 41 fixed block, 42 arc plate, 43 electric telescopic rod, 44 second air outlet pipe, 45 communication pipe, 46 air suction fan, 47 dust collection bag, 48 conical ring, 49 air jet pipe. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0040] REFERENCE Figures 1 to 11 A numerical control machine tool with dust reduction function for sensor accessory precision machining, comprising a polishing platform 2, the top of the polishing platform 2 is provided with a clamping mechanism, the clamping mechanism comprises two groups of clamping assemblies, the two groups of clamping assemblies are symmetrically distributed on the top of the polishing platform 2, the clamping assembly comprises a fixed block 41 fixedly installed on the top of the polishing platform 2, the fixed block 41 is fixedly connected with an electric telescopic rod 43 near one side of the center of the top of the polishing platform 2, the end of the electric telescopic rod 43 away from the fixed block 41 is fixedly connected with an arc plate 42, a telescopic rod is fixedly connected between the fixed block 41 and the arc plate 42, for enhancing the stability of the clamping assembly, the two groups of clamping assemblies jointly act, the two arc plates 42 apply clamping force to the sensor components from both sides, so that the sensor components can maintain a stable position state during polishing, avoiding displacement due to external force during polishing, thereby ensuring that the polishing operation can be accurately performed at the expected position, improving the precision and quality of polishing, the electric telescopic rod 43 can be flexibly adjusted in length according to the actual size of the sensor component, thereby driving the arc plate 42 to move to adapt to sensor components of different size specifications, enhancing the versatility of the clamping mechanism.

[0041] The side wall of the polishing platform 2 is provided with a fixed base 4, the fixed base 4 is slidably connected with a moving device 5 near one side of the polishing platform 2, the moving device 5 is fixedly installed with a shell 6, the shell 6 is located above the polishing platform 2, the inside of the shell 6 is provided with a fixed shell 11, the bottom of the fixed shell 11 is rotatably connected with a rotating shell, the rotating shell penetrates the bottom of the shell 6, the outer wall of the rotating shell is fixedly installed with a first outer gear ring 13, the bottom of the rotating shell is fixedly installed with a polishing disc 20, the inside of the shell 6 is provided with a driving assembly, the driving assembly includes a first motor 10 fixedly installed on the inner wall top of the shell 6, the rotating shaft outer wall of the first motor 10 is fixedly installed with a first gear 14, the first gear 14 is engaged with the first outer gear ring 13, the moving device 5 is started to drive the shell 6 to move up and down and left and right (this is prior art, and will not be repeated here), the position of the polishing disc 20 is adjusted to align with the sensor, so that the polishing disc 20 can be accurately aligned with sensor components of different sizes and different placement positions, and it is ensured that the polishing operation can cover each position of the sensor components that need to be polished, thereby effectively improving the applicability of the device, the first motor 10 is started to drive the first gear 14 to rotate the first outer gear ring 13, so that the polishing disc 20 rotates with the rotating shell to perform 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 is more balanced, thereby avoiding the situation of local excessive polishing or insufficient polishing, and effectively improving the quality and efficiency of polishing.

[0042] The inner wall of the rotating shell is fixedly installed with a fixed disc, the fixed disc is located above the polishing disc 20, the top of the fixed disc is fixedly installed with a first rotating ring 24, the top of the first rotating ring 24 is rotatably connected with a fixed ring 23, the fixed ring 23 is in communication with the inside of the first rotating ring 24, the inner wall of the shell 6 is fixedly installed with a dust suction pump 22 at the top, the dust suction pump 22 is located in the fixed shell 11 and above the fixed ring 23, the top of the fixed ring 23 is fixedly connected with the bottom of the dust suction pump 22, the side wall of the polishing platform 2 is fixedly installed with a nitrogen generating device 1, the side wall of the nitrogen generating device 1 is fixedly communicated with an air inlet pipe 7, the inner wall of the shell 6 is fixedly installed with a gas pump, the air inlet pipe 7 is fixedly communicated with the gas pump 12, the exhaust end of the gas pump 12 is fixedly communicated with an exhaust pipe, the exhaust pipe penetrates through the fixed shell 11 and is fixedly communicated with the fixed ring 23, the top of the fixed disc is fixedly connected with a plurality of first air outlet pipes 25, the plurality of first air outlet pipes 25 are circumferentially arrayed on the fixed disc, the plurality of first air outlet pipes 25 are fixedly communicated with the first rotating ring 24, the gas pump 12 works, the nitrogen in the nitrogen generating device 1 is extracted and discharged from the plurality of first air outlet pipes 25 to the gap between the fixed disc and the polishing disc 20 through the air inlet pipe 7, the fixed ring 23 and the first rotating ring 24, a circle of first air outlet holes 32 and a circle of second air outlet holes 33 are provided at the top of the polishing disc 20, the first air outlet holes 32 are located at the outer circle, the second air outlet holes 33 are located at the inner circle, the aperture of the first air outlet holes 32 is larger than that of the second air outlet holes 33, the first air outlet holes 32 and the second air outlet holes 33 are inclined away from the center of the polishing disc 20, and the inclination angle of the first air outlet holes 32 is larger than that of the second air outlet holes 33, the nitrogen discharged from the first air outlet pipe 25 is blown to the polishing surface of the sensor through the first air outlet holes 32 and the second air outlet holes 33, the inclination of the first air outlet holes 32 and the second air outlet holes 33 allows the nitrogen to have an outward angle when it is sprayed, which can effectively utilize the kinetic energy of the airflow to blow away the dust particles, avoiding the accumulation of dust between the polishing disc 20 and the polishing surface, under the condition of constant pressure, the larger the aperture, the greater the gas flow allowed per unit time, and a stronger airflow will be generated, the outer circle first air outlet holes 32 have a large diameter and a large inclination angle, which can quickly and efficiently blow dust out of the narrow space, the inner circle second air outlet holes 33 have a small diameter and a small inclination angle, which can finely remove small particles, and the two work together to remove dust in all directions.

[0043] The top center of the polishing disc 20 is provided with an air suction hole 40, the hole diameter of the air suction hole 40 gradually increases from top to bottom, the top center of the polishing disc 20 is fixedly connected with a suction pipe 30, the suction pipe 30 is in communication with the air suction hole 40, the suction pipe 30 is fixedly communicated with the dust collection pump 22 through the fixed disc, the first rotating ring 24 and the fixed ring 23, the suction pipe 30 is rotatably connected with the fixed disc, the side wall of the dust collection pump 22 is fixedly communicated with a discharge pipe 8, for the dust between the polishing disc 20 and the sensor polishing surface, the closer to the center position, the more difficult to be blown out, and the air suction hole 40 is located at the top center position of the polishing disc 20, which can directly suck the dust difficult to blow out in the center area, avoid the dust continuously accumulated in the center position, ensure the cleaning of the polishing work area, which is conducive to the continuous and efficient development of the polishing work, the hole diameter of the air suction hole 40 gradually increases from top to bottom, under the condition that the airflow resistance in the center area of the polishing disc 20 is relatively large, such hole diameter change design makes the airflow more smoothly enter the air suction hole 40 during suction, which can more efficiently suck away the dust, improve the working efficiency of the entire dust collection system, so that the dust can be sucked away by the dust collection pump 22 through the suction pipe 30 in time, avoid a large amount of dust accumulated near the polishing surface, re-attached to the sensor polishing surface during the polishing process, cause scratches, defects and other quality problems on the polished surface, help to improve the quality of polishing, and ensure the final product quality of the sensor.

[0044] A circle of trapezoidal air blowing holes 34 is provided through the top of the polishing disc 20, and the trapezoidal air blowing holes 34 are located between the second air outlet hole 33 and the air suction hole 40, the width of the trapezoidal air blowing hole 34 gradually increases from top to bottom, the inner wall of the trapezoidal air blowing hole 34 is rotatably connected with two rotating plates 39, the two rotating plates 39 divide the inside of the trapezoidal air blowing hole 34 into three channels, when the polishing produces a large amount of dust, the two rotating plates 39 rotate, the top ends of the two rotating plates 39 are close to each other and the bottom ends are away from each other, so that the width of the two side channels gradually decreases from top to bottom, the air outlets of the two side channels become narrow, according to the principle of fluid mechanics, when the gas flow is constant, the decrease of the channel cross-sectional area will increase the gas flow rate, thereby increasing the blowing speed and power, which can more effectively blow the dust out of the area between the polishing disc 20 and the polishing surface, or accurately blow to the dust collection or designated area, improve the dust removal capacity, ensure that the polishing surface can be kept clean in time, avoid the influence of excessive dust accumulation on the polishing quality, when the dust is less, the top ends of the two rotating plates 39 are away from each other and the bottom ends are close to each other, so that the width of the two side channels gradually increases from top to bottom, the air outlets of the two side channels become wide, accordingly reduce the blowing power, avoid the original small amount of dust being excessively blown and flying to the surrounding environment due to excessive air flow, maintain the cleanliness of the working area as a whole, reduce the potential harm of dust to the surrounding equipment and the health of the operating personnel.

[0045] The polishing platform 2 is fixedly installed with a water tank 3 away from the nitrogen generating device 1, the side wall of the shell 6 is fixedly installed with a water pump 18, the top of the water tank 3 is fixedly communicated with a water inlet pipe 9, the water inlet pipe 9 is fixedly communicated with the water pump 18, the water outlet end of the water pump 18 is fixedly communicated with a water outlet pipe, the water outlet pipe penetrates through the shell 6 and the fixed shell 11 and is fixedly communicated with the fixed ring 23, and the end of the water outlet pipe is fixedly communicated with an atomizing nozzle (not shown in the figure), the atomizing nozzle is located in the fixed ring 23, the water pump 18 starts to pump water from the water tank 3, the water mist sprayed by the atomizing nozzle in the fixed ring 23 is mixed with the internal nitrogen, and then is sprayed out from the first air outlet pipe 25, the nitrogen itself can blow up and scatter the dust by the airflow, and the water mist further moisturizes and fixes the dust on this basis, the two complement each other, strengthen the control and removal effect of the dust, make the dust falling work more comprehensive and efficient, fully play their respective advantages to deal with the dust in different states in the polishing process, polish in the wet environment, because the dust is effectively controlled, the friction and embedding of the dust particles between the polishing surface and the polishing disc 20 are avoided, so that the polishing surface of the sensor part is smoother and more flat, reduces the surface defects caused by the dust, helps to improve the polishing quality and precision, and guarantees the final quality of the product.

[0046] The top of the fixed disc is fixedly provided with a second motor 21, the output end of the second motor 21 is fixedly connected with a rotating rod 31, the side wall of the rotating rod 31 is fixedly provided with a sixth gear 37 and a fifth gear 29, the sixth gear 37 is located below the fixed disc, the fifth gear 29 is located below the sixth gear 37, the bottom of the fixed disc is provided with a circular groove, a plurality of fixed rods 36 are slidably connected with the circular groove, the plurality of fixed rods 36 are circumferentially arranged at the bottom of the fixed disc, the bottom of the fixed disc is provided with an inner tooth ring 38, the top of the inner tooth ring 38 is fixedly connected with the bottom of the plurality of fixed rods 36, the inner wall of the rotating shell is rotatably connected with a second rotating ring 35, the second rotating ring 35 corresponds to the inner tooth ring 38, a plurality of first vanes 26 are fixedly connected between the second rotating ring 35 and the inner tooth ring 38, the plurality of first vanes 26 are circumferentially arranged on the outer wall of the inner tooth ring 38, the inner tooth ring 38 is engaged with the sixth gear 37, the outer wall of the suction pipe 30 is rotatably connected with a fourth gear 28, the fourth gear 28 is engaged with the fifth gear 29, the outer wall of the suction pipe 30 is rotatably connected with a rotating ring, the bottom of the fourth gear 28 is fixedly connected with the top of the rotating ring, the outer wall of the rotating ring is fixedly provided with a plurality of second vanes 27, the plurality of second vanes 27 are circumferentially arranged on the outer wall of the rotating ring, the first vanes 26 are located above the outer circle of the second vanes 27, a plurality of holes are formed in the first vanes 26 and the second vanes 27, in the polishing process, the second motor 21 is started, the 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, the sixth gear 37 drives the inner tooth ring 38 to rotate, so that the first vanes 26 and the second vanes 27 rotate, the airflow generated by the rotation of the first vanes 26 promotes the nitrogen and the water mist to be quickly and uniformly discharged from the first air outlet hole 32, the second air outlet hole 33 and the trapezoidal air blowing hole 34, ensuring that the entire polishing disc 20 surface can be fully covered with gas and water mist, so that the dust in each area can be effectively disturbed, improving the comprehensiveness and uniformity of dust removal, the rotation of the second vanes 27 in the inner circle can enhance the airflow intensity blown out from the trapezoidal air blowing hole 34, because the central region often has relatively large flow resistance, it is difficult for dust to be blown, the rotation of the second vanes 27 makes the dust near the central region more easily blown and moved to the center, facilitating subsequent centralized cleaning of the dust accumulated in the center through the air suction hole 40 and the suction pipe 30, improving the processing capacity of the central dust, thereby further improving the overall polishing quality, in the polishing process, the water mist particles are large and easy to condense into water droplets on the surface of the polishing disc 20, the rotation of the first vanes 26 and the second vanes 27 further refines the water mist particles through shear force, preventing the formation of water droplets, the refined water mist particles can be better distributed on the surface of the polishing disc 20, avoiding local water accumulation affecting the polishing operation, on the other hand, the smaller water mist particles can more fully contact the dust particles, more effectively wet the dust, so that the dust particles are more easily sucked away by the dust collector or discharged with the airflow, enhancing the dust suppression effect,The small holes provided on the first and second flaps 26 and 27 increase the flow path of the nitrogen, making the flow of nitrogen in the device smoother and more extensive, while also helping to further refine the water mist particles.

[0047] The outer wall of the fixed shell 11 is rotationally connected with a brush 19, the inner wall of the brush 19 is in contact with the side wall of the polishing disc 20, the top of the brush 19 is fixedly installed with a second outer gear ring 17, the side wall of the rotating shaft of the first motor 10 is fixedly installed with a second gear 15, the second gear 15 is located below the first gear 14, the inner wall of the shell 6 is rotationally connected with a third gear 16 through a rotating shaft, the third gear 16 is located between the second outer gear ring 17 and the second gear 15 and is engaged with the second outer gear ring 17 and the second gear 15, the first motor 10 is started, the second gear 15 drives the third gear 16 to rotate, the third gear 16 drives the second outer gear ring 17 to rotate, and the brush 19 rotates with the second outer gear ring 17 to clean the outer wall of the polishing disc 20, the rotating direction of the brush 19 is opposite to that of the polishing disc 20, which realizes more comprehensive and uniform cleaning of the outer wall of the polishing disc 20, avoids the situation that local cleaning is not in place, guarantees the cleaning degree of the overall outer wall of the polishing disc 20, helps to maintain its good performance in work, ensures the stability of the polishing quality of the polishing disc 20 on the surface of an object, the bottom of the shell 6 is fixedly installed with a conical ring 48, the conical ring 48 is sleeved on the outer wall of the brush 19, the bottom of the conical ring 48 is provided with a plurality of air injection pipes 49, the air injection pipes 49 are circumferentially arranged at the bottom of the conical ring 48, and the brush 19 is rubbed with the conical ring 48 when rotating, so that static electricity is generated to adsorb dust particles passing by, preventing dust from re-accumulating on the polishing surface, and the air injection pipes 49 can blow the dust on the brush 19 down.

[0048] Two grooves are provided through the top of the polishing platform 2 and are symmetrically distributed on both sides of the clamping mechanism, which can collect dust from different positions on the top of the polishing platform 2, a dust collection box is fixedly installed on the inner wall of the polishing platform 2, two communication pipes 45 are fixedly communicated with the dust collection box respectively, and the communication pipes 45 are inclined downward, a dust collection bag 47 is arranged at the end of the communication pipe 45 away from the groove, the dust collection bag 47 is located in the dust collection box, a suction fan 46 is fixedly installed in the dust collection box, a second air outlet pipe 44 is fixedly communicated with the side wall of the dust collection box and extends out of the polishing platform 2, one end of the discharge pipe 8 away from the dust collection pump 22 is fixedly communicated with the corresponding communication pipe 45, during the polishing process, the dust in the central region of the polishing disc 20 sucked by the dust collection pump 22 through the suction pipe 30 and the air suction hole 40 enters the corresponding communication pipe 45 through the discharge pipe 8, the suction fan 46 is started to generate negative pressure, and the dust is sucked into the communication pipe 45 from multiple directions, which greatly improves the range and efficiency of dust collection, and finally the dust is left in the dust collection bag 47, and the gas is discharged from the second air outlet pipe 44 after being filtered by the dust collection bag 47.

[0049] In the present application, the sensor is placed on the polishing platform 2, after adjusting the position of the sensor, the electric telescopic rod 43 is started, the sensor is clamped by the arc plate 42, so that the surface to be polished is opposite to the polishing disc 20, to ensure that there is no movement or misplacement during polishing, at this time the position of the polishing disc 20 is adjusted up and down and left and right by starting the moving device 5 (this is the prior art, which will not be described here), and then the polishing of the sensor is started.

[0050] When the polishing is started, the first motor 10 is started first, so that the first gear 14 starts to rotate, thereby driving the first outer gear ring 13 to rotate, the rotating shell drives the polishing disc 20 to rotate and polish, at the same time, the air pump 12 is started, the nitrogen in the nitrogen generating device 1 is transported to the top of the polishing disc 20 through the air inlet pipe 7, the air pump 12, the first rotating ring 24 and the first air outlet pipe 25, and finally discharged through the first air outlet hole 32 and the second air outlet hole 33 on the polishing disc 20, a large amount of dust will be generated during polishing, which is easy to accumulate between the polishing disc 20 and the polishing surface of the sensor, which not only affects the polishing effect, but also easily damages the polishing equipment and the sensor, the polishing disc 20 has the inclined first air outlet hole 32 and the second air outlet hole 33, which effectively utilizes the kinetic energy of the airflow to blow away the dust particles, the first air outlet hole 32 of 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, and the small diameter of the second air outlet hole 33 can limit the flow of the airflow, avoid the airflow being too large to cause the dust to scatter and affect the cleanliness of the polishing environment, and the cooperation of the second air outlet hole 33 and the first air outlet hole 32 ensures the continuity and stability of the polishing process.

[0051] The polishing disc 20 also has the air suction hole 40 connected with the dust suction pump 22 through the suction pipe 30, the sucked dust is finally transported into the communication pipe 45 through the discharge pipe 8, for the dust between the polishing disc 20 and the polishing surface of the sensor, the air suction hole 40 directly sucks the dust difficult to blow out in the central area, effectively solving the problem of dust accumulation, the trapezoidal air blowing hole 34 is located between the first air outlet hole 32, the second air outlet hole 33 and the air suction hole 40, which can allow the airflow to blow in and out at the same time, and assist the first air outlet hole 32, the second air outlet hole 33 and the air suction hole 40 to work better, the trapezoidal air blowing hole 34 has an adjustable rotating plate 39 inside, by adjusting the angle of the rotating plate 39, the cross-sectional area of the airflow channel on both sides of the trapezoidal air blowing hole 34 can be changed, thereby affecting the airflow passing through, the combination of blowing through the first air outlet hole 32 and the second air outlet hole 33, auxiliary blowing through the trapezoidal air blowing hole 34 and suction through the air suction hole 40 can realize the comprehensive removal of the dust between the polishing disc 20 and the polishing surface of the sensor, the polishing surface can be kept cleaner and smoother, thereby improving the polishing quality.

[0052] When the air pump 12 starts to pump air, the water pump 18 starts to pump water from the water tank 3 at the same time, the water mist sprayed from the atomizing nozzle will mix with the nitrogen gas and be sprayed out, when the water mist contacts the polished surface of the sensor, it can form a thin wet layer, which can effectively capture and fix the tiny dust particles generated in the polishing process, so that the dust is not easy to fly in the air, thereby reducing the dust concentration in the air.

[0053] In the polishing process, the second motor 21 starts to rotate the rod 31, thereby driving the fourth gear 28 and the inner tooth ring 38 to rotate through the fifth gear 29 and the sixth gear 37, and then driving the first fan blade 26 and the second fan blade 27 to rotate, the first fan blade 26 can generate air flow when rotating, which can send the nitrogen gas and the water mist from the first air outlet hole 32, the second air outlet hole 33 and the trapezoidal air blowing hole 34 more quickly and uniformly, the second fan blade 27 can enhance the air flow intensity blown 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 the nitrogen gas, but also can refine the water mist into smaller particles when the water mist passes through the small holes.

[0054] When the first motor 10 starts, the brush 19 and the polishing disc 20 can rotate in opposite directions through the second gear 15, the third gear 16 and the second outer tooth ring 17, the relative movement speed between the two is increased, which is helpful to more effectively remove the dust generated in the polishing process and prevent it from accumulating on the polishing surface, thereby maintaining the cleanliness and smoothness of the polishing surface, the brush 19 will generate static electricity effect when rotating and rubbing with the conical ring 48, thereby being able to adsorb the dust particles passing through, the dust on the brush 19 can be blown down by the air jet pipe 49 and then be sucked into the communication pipe 45.

[0055] The polishing platform 2 has a groove, the two ends of the groove are connected with the inclined communication pipe 45, which not only helps to guide the flow of dust, but also provides a concentrated area, so that the dust is more easily sucked into the communication pipe 45, reduces the spread of the dust on the platform surface, and improves the dust collection efficiency, in the polishing process, the air suction fan 46 starts to generate negative pressure, so that the dust is sucked into the communication pipe 45 and finally stays in the dust collection bag 47, and the clean gas is discharged from the second air outlet pipe 44.

[0056] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A numerical control machine tool for precision machining of sensor accessories with dust reduction function, comprising a polishing platform (2), characterized in that, Also include: Clamping mechanism, clamping mechanism is arranged in the top of polishing platform (2); The shell (6) is arranged above the polishing platform (2) through the moving assembly, the inner wall top of the shell (6) is fixedly installed with the fixed shell (11), the bottom of the fixed shell (11) is rotatably connected with the rotating shell, the rotating shell penetrates the bottom of the shell (6), the bottom of the rotating shell is fixedly installed with the polishing disc (20), the inside of the shell (6) is provided with a driving assembly, and the driving assembly is used for driving the polishing disc (20) to rotate; The top of the polishing disc (20) penetrates a circle of first air outlet (32) and a circle of second air outlet (33), the first air outlet (32) is located in the outer circle, and the second air outlet (33) is located in the inner circle, the aperture of the first air outlet (32) is greater than the aperture of the second air outlet (33), the first air outlet (32) and the second air outlet (33) are inclined to the direction away from the center of the polishing disc (20), and the inclination angle of the first air outlet (32) is greater than the inclination angle of the second air outlet (33), the polishing disc (20) is provided with a blowing mechanism, the top center of the polishing disc (20) penetrates an air inlet (40), the aperture of the air inlet (40) gradually increases from top to bottom, and the air inlet (40) is communicated with a dust suction assembly; The top of the polishing disc (20) penetrates a circle of trapezoidal air blowing hole (34), and the trapezoidal air blowing hole (34) is located between the second air outlet (33) and the air inlet (40), the width of the trapezoidal air blowing hole (34) gradually increases from top to bottom, and the inner wall of the trapezoidal air blowing hole (34) is rotatably connected with two rotating plates (39), two rotating plates (39) divide the inside of the trapezoidal air blowing hole (34) into three channels.

2. The numerical control machine tool for precision machining of a sensor fitting with a dust reduction function according to claim 1, characterized in that, The clamping mechanism includes two groups of clamping assemblies, and the two groups of clamping assemblies are symmetrically distributed on the top of the polishing platform (2), the clamping assembly includes a fixed block (41) fixedly installed on the top of the polishing platform (2), the fixed block (41) is fixedly connected with an electric telescopic rod (43) on the side close to the center of the top of the polishing platform (2), and one end of the electric telescopic rod (43) away from the fixed block (41) is fixedly connected with an arc plate (42).

3. The numerical control machine tool for precision machining of a sensor fitting with a dust reduction function according to claim 1, characterized in that, The moving assembly includes a fixed base (4) arranged on the side wall of the polishing platform (2), the fixed base (4) is slidably connected with a moving device (5) on the side close to the polishing platform (2), and the shell (6) is fixedly installed on the moving device (5).

4. The numerical control machine tool for precision machining of a sensor fitting with a dust reduction function according to claim 1, characterized in that, The outer wall of the rotating shell is fixedly installed with a first outer gear ring (13), the driving assembly includes a first motor (10) fixedly installed on the inner wall top of the shell (6), the rotating shaft outer wall of the first motor (10) is fixedly installed with a first gear (14), and the first gear (14) is engaged with the first outer gear ring (13).

5. The numerical control machine tool for precision machining of a sensor fitting having a dust reduction function according to claim 4, characterized in that, The outer wall of the fixed shell (11) is rotationally connected with a brush (19), the inner wall of the brush (19) is in contact with the side wall of the polishing disc (20), the top of the brush (19) is fixedly installed with a second outer gear ring (17), the rotating shaft side wall of the first motor (10) is fixedly installed with a second gear (15), and the second gear (15) is located below the first gear (14), the inner wall of the shell (6) is rotationally connected with a third gear (16) through a rotating shaft, the third gear (16) is located between the second outer gear ring (17) and the second gear (15) and is engaged with the second outer gear ring (17) and the second gear (15), the bottom of the shell (6) is fixedly installed with a conical ring (48), the conical ring (48) is sleeved on the outer wall of the brush (19), and the bottom of the conical ring (48) is provided with a plurality of air injection pipes (49) which are circumferentially arranged on the bottom of the conical ring (48).

6. The numerical control machine tool for precision machining of a sensor fitting with a dust reduction function according to claim 1, characterized in that, The inner wall of the rotating shell is fixedly installed with a fixed disc, the fixed disc is located above the polishing disc (20), the top of the fixed disc is fixedly installed with a first rotating ring (24), the top of the first rotating ring (24) is rotationally connected with a fixed ring (23), the air blowing mechanism comprises a nitrogen generating device (1) fixedly installed on the side wall of the polishing platform (2), the side wall of the nitrogen generating device (1) is fixedly communicated with an air inlet pipe (7), the inner wall of the shell (6) is fixedly installed with an air pump (12), the air inlet pipe (7) is fixedly communicated with the air pump (12), the exhaust end of the air pump (12) is fixedly communicated with an exhaust pipe, the exhaust pipe penetrates the fixed shell (11) and is fixedly communicated with the fixed ring (23), and the top of the fixed disc is fixedly connected with a plurality of first air outlet pipes (25) which are circumferentially arranged on the fixed disc, and the plurality of first air outlet pipes (25) are fixedly communicated with the first rotating ring (24).

7. The numerical control machine tool for precision machining of a sensor fitting having a dust reduction function according to claim 6, characterized in that, The dust suction assembly comprises a dust suction pump (22) fixedly installed on the top of the inner wall of the shell (6), the dust suction pump (22) is located in the fixed shell (11) and above the fixed ring (23), the top of the fixed ring (23) is fixedly connected with the bottom of the dust suction pump (22), the top of the polishing disc (20) is fixedly communicated with a material suction pipe (30) which is fixedly communicated with the dust suction pump (22) and the air suction hole (40), the material suction pipe (30) penetrates the fixed disc, the first rotating ring (24) and the fixed ring (23), the material suction pipe (30) is rotationally connected with the fixed disc, and the side wall of the dust suction pump (22) is fixedly communicated with a material outlet pipe (8).

8. The numerical control machine tool for precision machining of a sensor fitting having a dust reduction function according to claim 7, characterized in that, The top of the polishing platform (2) is provided with two grooves, which are symmetrically distributed on both sides of the clamping mechanism, and the inner wall bottom of the polishing platform (2) is fixedly installed with a dust collection box, two grooves are fixedly communicated with the dust collection box with a communication pipe (45), and the communication pipe (45) is inclined downward, one end of the communication pipe (45) away from the groove is provided with a dust collection bag (47), the dust collection bag (47) is located in the dust collection box, the inside of the dust collection box is fixedly installed with a suction fan (46), the side wall of the dust collection box is fixedly communicated with a second air outlet pipe (44), the second air outlet pipe (44) penetrates out of the polishing platform (2), and the discharge pipe (8) is fixedly communicated with the corresponding side communication pipe (45).

9. The numerical control machine tool for precision machining of a sensor fitting having a dust reduction function according to claim 6, characterized in that, The side of the polishing platform (2) away from the nitrogen generating device (1) is fixedly installed with a water tank (3), the side wall of the shell (6) is fixedly installed with a water pump (18), the water pump (18) is fixedly communicated with the water tank (3) with a water inlet pipe (9), the water outlet end of the water pump (18) is fixedly communicated with a water outlet pipe, the water outlet pipe penetrates the shell (6) and the fixed shell (11) and is fixedly communicated with the fixed ring (23), and the end of the water outlet pipe is fixedly communicated with an atomizing nozzle, and the atomizing nozzle is located in the fixed ring (23).

10. The numerical control machine tool for precision machining of a sensor fitting having a dust reduction function according to claim 7, characterized in that, The top of the fixed disc is fixedly installed with a second motor (21), the output end of the second motor (21) is fixedly connected with a rotating rod (31), the side wall of the rotating rod (31) is fixedly installed with a sixth gear (37) and a fifth gear (29), the sixth gear (37) is located below the fixed disc, the fifth gear (29) is located below the sixth gear (37), the bottom of the fixed disc is provided with a circular groove, a plurality of fixed rods (36) are slidably connected with the circular groove, and the plurality of fixed rods (36) are circumferentially arrayed on the bottom of the fixed disc, the bottom of the fixed disc is provided with an inner tooth ring (38), the top of the inner tooth ring (38) is fixedly connected with the bottom of the plurality of fixed rods (36), the inner wall of the rotating shell is rotatably connected with a second rotating ring (35), the second rotating ring (35) corresponds to the inner tooth ring (38), a plurality of first blades (26) are fixedly connected between the second rotating ring (35) and the inner tooth ring (38), and the plurality of first blades (26) are circumferentially arrayed on the outer wall of the inner tooth ring (38), the inner tooth ring (38) is meshed with the sixth gear (37), the outer wall of the suction pipe (30) is rotatably connected with a fourth gear (28), the fourth gear (28) is meshed with the fifth gear (29), the outer wall of the suction pipe (30) is rotatably connected with a rotating ring, the bottom of the fourth gear (28) is fixedly connected with the top of the rotating ring, a plurality of second blades (27) are fixedly installed on the outer wall of the rotating ring, and the plurality of second blades (27) are circumferentially arrayed on the outer wall of the rotating ring, the first blades (26) are located above the outer circle of the second blades (27), and a plurality of small holes are formed in the first blades (26) and the second blades (27).

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