Surface self-adaptive grinding device for fan impeller

Abstract

The invention discloses a surface self-adaptive fan impeller polishing device, and relates to the technical field of impeller polishing, the surface self-adaptive fan impeller polishing device comprises a polishing equipment main body and a controller, the polishing equipment main body comprises a supporting platform, a supporting frame is mounted above the supporting platform, and a plurality of grabbing assemblies are mounted on the bottom surface of the supporting frame; a conveying belt, a plurality of physical polishing assemblies, a plurality of impeller testing assemblies and a plurality of precise polishing assemblies are arranged above the supporting platform, the testing assemblies are installed between the physical polishing assemblies and the precise polishing assemblies respectively, and the physical polishing assemblies can conduct simple material polishing on pressure. The impeller testing assembly can detect the polishing degree of the surface of an impeller, and the precise polishing assembly can precisely polish the impeller, so that when the device is used, the device can adapt to impellers of different sizes and different styles, and impeller blanks can be ground and polished according to the precision requirements of different impellers.

Description

Technical Field

[0001] The invention relates to the technical field of impeller grinding, in particular to a surface-adaptive grinding device for a fan impeller. Background Art

[0002] The fan impeller is generally cast, and there are many burrs on the impeller after casting. The fan impeller grinding device is an auxiliary device used in the production process of water pumps to grind its burrs. The grinding device makes the blades on the impeller smooth, thereby increasing the centrifugal force of the impeller. The blades of the fan impeller are arc-shaped, with concave and convex outer walls. It is difficult for current grinding and polishing devices to perform fine grinding and polishing on the surface of the impeller, resulting in differences in the uniformity of the finishing of the impeller blade surface and unsatisfactory finishing effects. The adaptive grinding mechanism can automatically change the grinding method according to the shape of the impeller surface to improve the grinding effect, thereby enabling the finished impeller to achieve the best effect. Summary of the invention

[0003] The object of the present invention is to provide a surface-adaptive grinding device for a fan impeller to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface-adaptive grinding device for a fan impeller, comprising a grinding equipment body and a controller, the grinding equipment body comprising a support platform, a support frame is installed above the support platform, a plurality of grabbing components are installed on the bottom surface of the support frame, a conveyor belt, a plurality of physical polishing components, a plurality of impeller testing components and a plurality of precision polishing components are arranged above the support platform, the plurality of testing components are respectively installed between the physical polishing components and the precision polishing components, the physical polishing components can perform simple material polishing under pressure, the impeller testing components can detect the polishing degree of the impeller surface, and the precision polishing components can perform precision polishing on the impeller.

[0005] Furthermore, the physical polishing component includes a polishing frame, which is slidably installed above the supporting platform, a support rod is installed in the middle of the polishing frame, a mounting plate is arranged inside the polishing frame, the mounting plate cooperates with the limiting rod, the mounting plate is provided with polishing patterns, and a plurality of groups of detachable polishing papers are arranged on the inner wall of the polishing frame, and the plurality of groups of detachable polishing papers are equidistantly installed on the polishing frame.

[0006] Furthermore, the detachable polishing paper includes a limiting clamp plate, a plurality of slide grooves are provided on the inner wall of the polishing frame, the limiting clamp plate is slidably installed inside the slide groove, polishing paper is installed between the limiting clamp plates, and the polishing paper can polish the impeller surface.

[0007] Furthermore, the impeller test assembly includes a test slot, a gas exhaust hole is formed at the bottom of the test slot, a gas flow sensor is installed inside the gas exhaust hole, and the gas flow sensor is connected to a controller.

[0008] Furthermore, the precision polishing component includes an electrolytic cell, which is connected to a controller, electrolyte is added to the electrolytic cell, a drain pipe is provided at the bottom of the electrolytic cell, an electric valve is installed between the drain cell and the drain pipe, a filter component is provided inside the support platform, the other end of the drain pipe is connected to the filter component, and the filter component is connected to the electrolytic cell.

[0009] Furthermore, the filter assembly includes a filter box, both ends of which are connected to pipes, multiple groups of filter plates are installed inside the pipes, and the multiple groups of filter plates are equidistantly installed inside the pipes. A pump body is installed above the filter box, and the output ends of the pump body are respectively connected to multiple groups of electrolytic cells.

[0010] Furthermore, the grabbing assembly includes a support block, a bidirectional screw and a limit rod, the bidirectional screw and the limit rod are respectively installed between the support blocks, both ends of the bidirectional screw and the limit rod are installed between the support frames through bearings, a plurality of servo motors are installed outside the support frame, the output ends of the plurality of servo motors are respectively connected to the plurality of bidirectional screws, a plurality of cylinders are equidistantly installed at the bottom of the support block, a fixed disk is installed at the output end of the cylinder, an auxiliary disk is installed at the bottom of the fixed disk, a clamping ring is installed at the bottom of the auxiliary disk, and a driving assembly is installed between the fixed disk and the auxiliary disk.

[0011] Furthermore, the driving assembly includes a driving motor, which is installed above the fixed disk. The output end of the driving motor is connected to the auxiliary disk. Multiple groups of cylinders are installed on the outside of the clamping ring. The output end of the cylinder is installed with an arc-shaped clamping plate, and the arc-shaped clamping plate is located on the inner ring of the clamping ring.

[0012] Furthermore, a slide groove is provided at the bottom of the fixed disk, and the auxiliary disk cooperates with the fixed disk through the slide groove. A plurality of groups of matching magnets are arranged at the bottom of the fixed disk, and the plurality of groups of matching magnets are respectively and alternately installed on the bottom of the fixed disk, half of the matching magnets have their S poles facing the auxiliary disk, and the other half of the matching magnets have their N poles facing the auxiliary disk. A plurality of groups of auxiliary magnets are installed at the bottom of the matching disk, and the plurality of groups of auxiliary magnets are respectively and equidistantly and alternately installed on the auxiliary disk, half of the auxiliary magnets have their S poles facing the fixed disk, and the other half of the auxiliary magnets have their N poles facing the fixed disk.

[0013] Furthermore, the controller is installed on the side of the grinding equipment body, and a control panel is provided on the controller.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Therefore, when the device is used, it can adapt to impellers of different sizes and shapes, so that impellers of different sizes and styles can be ground and polished by the device, and the impeller blank can be tested according to the impeller test assembly, and the appropriate fine polishing power can be matched according to the test results; 2. The physical polishing component of the device can be used to polish impellers of different sizes and styles. At the same time, the material polishing component can easily remove the burrs on the blades and end faces of the impeller blank, because the mounting plate and detachable polishing paper on the physical polishing component are replaceable. Because the polishing paper is relatively soft, when the impeller blank rotates, the blades will contact the polishing paper, thereby achieving polishing. After the pressure blank rotates forward for a certain period of time, it can be turned over, so that the other side of the blade can also be polished; 3. After the impeller blank is physically polished, the grabbing component will test the impeller blank through the impeller testing component to understand whether the impeller after physical polishing can meet the standard requirements, and the values ​​obtained by the impeller testing component can be used in conjunction with the subsequent precision polishing component; and when the precision polishing component polishes the impeller blank, it can automatically shorten or extend the electrolytic polishing time of the impeller according to the data of the impeller testing component; 4. After grabbing the impeller blank, the grabbing component of the device drives the impeller to rotate. During the rotation process, the rotation speed of the impeller can be increased with the cooperation of the fixed disk and the auxiliary disk, and the impeller can be assisted to perform a series of polishing and testing processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axonometric structure of the present invention as a whole; Figure 2 It is a structural schematic diagram of the upper part of the support platform of the present invention; Figure 3 It is a structural schematic diagram of the grabbing assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the drive assembly, the fixed disk, the auxiliary disk and the clamping ring of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the support platform of the present invention; Figure 6 It is a structural schematic diagram of the polishing frame of the present invention; Figure 7 It is a structural schematic diagram of the limiting splint of the present invention; Figure 8 It is a structural schematic diagram of the test slot of the present invention; Fig. 9 It is a schematic diagram of the structure of the filter assembly of the present invention.

[0016] In the figure: 1. Grinding equipment body; 11. Support platform; 12. Support frame; 13. Conveyor belt; 14. Controller; 15. Servo motor; 2. Grabbing assembly; 21. Support block; 22. Bidirectional screw; 23. Limit rod; 24. Fixed plate; 25. Auxiliary plate; 26. Arc splint; 3. Physical polishing assembly; 31. Polishing frame; 32. Support rod; 33. Mounting plate; 34. Removable polishing paper; 341. Limit splint; 4. Impeller test assembly; 41. Test tank; 42. Exhaust hole; 43. Gas flow sensor; 5. Precision polishing assembly; 51. Electrolytic cell; 52. Drain pipe; 6. Filter assembly; 61. Filter box; 62. Pipeline; 63. Pump body; 7. Drive assembly; 71. Drive motor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution for a surface-adaptive grinding device for a fan impeller, comprising a grinding device body 1 and a controller 14, wherein the grinding device body 1 comprises a support platform 11, a support frame 12 is installed above the support platform 11, and a plurality of grabbing components 2 are installed on the bottom surface of the support frame 12, a conveyor belt 13, a plurality of physical polishing components 3, a plurality of impeller test components 4 and a plurality of precision polishing components 5 are arranged above the support platform 11, and the plurality of test components are respectively installed between the physical polishing components 3 and the precision polishing components 5, the physical polishing components 3 can perform simple material polishing on the pressure, the impeller test components 4 can detect the polishing degree of the impeller surface, and the precision polishing components 5 can perform precision polishing on the impeller; When the device is in use, the impeller blank can be polished through the polishing equipment body 1. First, the impeller blank can be subjected to basic physical polishing. After the basic polishing, the device will test the polished impeller blank to test whether the impeller can achieve the expected effect. After the impeller has passed the test, the impeller blank will be precision polished to eliminate the fine particles remaining on the impeller blank, and then the finished product will be delivered. When in specific use, the impeller blank will be uniformly placed on the conveyor belt 13, and then the impeller blank can be clamped by the grabbing component 2, and the impeller blank is placed on the physical polishing component 3, and the impeller blank is surface polished by the physical polishing component 3. After polishing, the grabbing component 2 will place the impeller blank on the conveyor belt 13, and the conveyor belt 1 3 The impeller blank is transferred to the next step, and the impeller blank is placed on the impeller testing component 4 through the grabbing component 2 of the next step, and the impeller is tested to test whether the impeller can reach the corresponding centrifugal force. When the impeller reaches the expected centrifugal force, the impeller blank is subsequently precision polished to eliminate the fine particles remaining on the impeller blank. When the centrifugal force of the impeller is small, the power of the precision polishing component 5 will be increased when the impeller is precision polished. Because the centrifugal force of the impeller blank is small, there will be more particles on the surface of the impeller blank. When the power of the precision polishing component 5 is increased, the dissolution of the particles on the surface of the impeller blank can be accelerated. The impeller blank after precision polishing will be placed on the conveyor belt 13, and the finished impeller will be transferred out through the conveyor belt 13.

[0019] like Figure 1-Figure 2 , Figure 5-Figure 7 As shown, in this embodiment, specifically, the physical polishing assembly 3 includes a polishing frame 31, the polishing frame 31 is slidably installed above the supporting platform 11, a supporting rod 32 is installed in the middle of the polishing frame 31, a mounting plate 33 is arranged inside the polishing frame 31, the mounting plate 33 cooperates with the limiting rod 23, and a polishing pattern is arranged on the mounting plate 33, and a plurality of groups of detachable polishing papers 34 are arranged on the inner wall of the polishing frame 31, and the plurality of groups of detachable polishing papers 34 are equidistantly installed on the polishing frame 31; When in use, the physical polishing component 3 can polish and grind the surface of the impeller blank. During specific use, the grabbing component 2 can grab the impeller blank and place it in the polishing frame 31. The output end face of the impeller blank will contact the polishing pattern, and the blade side of the impeller blank will contact the removable polishing paper 34. Then, the impeller blank can be physically polished through the mounting plate 33 and the removable polishing paper 34, so that larger burrs or particles on the surface of the impeller blank can be polished away.

[0020] like Figure 7As shown, in this embodiment, specifically, the detachable polishing paper 34 includes a limited clamping plate 341, and the inner wall of the polishing frame 31 is provided with multiple groups of slide grooves, and the limited clamping plate 341 is slidably installed inside the slide groove, and polishing paper is installed between the limited clamping plates 341, and the polishing paper can polish the surface of the impeller; When in use, the detachable polishing paper 34 can be used to polish the blade side of the impeller blank. When in use, the detachable polishing paper 34 can be disassembled or assembled with the polishing frame 31, and the polishing paper in the detachable polishing paper 34 can be replaced when needed. When replacing the polishing paper of the detachable polishing paper 34, it is only necessary to remove the polishing paper on the limiting clamp 341, and limit the polishing paper between the limiting clamp 341, and then install the limiting clamp 341 on the polishing frame 31.

[0021] like Figure 8 As shown, in this embodiment, specifically, the impeller test assembly 4 includes a test slot 41, a vent hole 42 is opened at the bottom of the test slot 41, a gas flow sensor 43 is installed inside the vent hole 42, and the gas flow sensor 43 is connected to the controller 14; When the impeller test component 4 is in use, it can test the impeller blank, and test whether the wind force and centrifugal force generated by the impeller blank after material polishing during rotation can meet the standards. When it is used specifically, the finished impeller needs to be tested in the impeller test component 4 first. After multiple finished product tests, a finished product threshold can be obtained. Then, the impeller blank can be driven to rotate through the grabbing component 2, so that the impeller blank generates wind force in the test slot 41. When the wind force passes through the gas flow sensor 43, the gas flow sensor 43 can detect the size of the airflow generated by the impeller blank, and the gas flow sensor 43 can detect the size of the airflow generated by the impeller blank. The value obtained by the sensor 43 can be transmitted to the controller 14, and the controller 14 will compare the obtained data with the threshold value of the finished product test. When the impeller blank reaches the expected centrifugal force, the impeller blank will be precision polished to eliminate the fine particles remaining on the impeller blank. When the centrifugal force of the impeller is small, the power of the precision polishing component 5 will be increased when the impeller is precision polished. Because the centrifugal force of the impeller blank is small, there will be more particles on the surface of the impeller blank. When the power of the precision polishing component 5 is increased, the dissolution of the particles on the surface of the impeller blank can be accelerated.

[0022] like Figure 1-Figure 2 and Figure 5As shown, in this embodiment, specifically, the precision polishing assembly 5 includes an electrolytic cell 51, the electrolytic cell 51 is connected to the controller 14, an electrolyte is added to the electrolytic cell 51, a drain pipe 52 is provided at the bottom of the electrolytic cell 51, an electric valve is installed between the drain tank and the drain pipe 52, a filter assembly 6 is arranged inside the support platform 11, the other end of the drain pipe 52 is connected to the filter assembly 6, and the filter assembly 6 is connected to the electrolytic cell 51; When the precision polishing component 5 is in use, it can perform precision polishing on the impeller blank, and can adapt to impellers of different sizes and styles. In specific use, after the grabbing component 2 grabs the impeller blank, it will place the impeller blank inside the electrolytic cell 51. At this time, the impeller blank is connected to the positive electrode of the DC power supply as an anode, and a conductive material resistant to electrolyte corrosion such as lead and stainless steel is used as a cathode, which is connected to the negative electrode of the DC power supply. The two are immersed in the electrolyte at a certain distance, and the power is turned on for a certain time at a certain temperature, voltage and current density, so that the tiny particles on the surface of the impeller blank are polished. The raised part will dissolve first and gradually become a smooth and bright surface, thereby realizing the polishing of impellers of different sizes and dimensions. When polishing the impeller blank, the impeller blank will also be driven to rotate. When the impeller blank rotates, the polishing liquid will produce a tornado under the drive of the impeller. Due to the centrifugal force, the residue or debris in the polishing liquid will be in the center of the tornado. At this time, when the electric valve is opened, the electrolyte and residue in the center of the tornado can be discharged into the filter component 6, and the electrolyte and residue are separated by the filter component 6.

[0023] like Figure 5 and Fig. 9 As shown, in this embodiment, specifically, the filter assembly 6 includes a filter box 61, and both ends of the filter box 61 are respectively connected to a pipe 62, and multiple groups of filter plates are installed inside the pipe 62, and multiple groups of filter plates are equidistantly installed inside the pipe 62. A pump body 63 is installed above the filter box 61, and the output end of the pump body 63 is respectively connected to multiple groups of electrolytic cells 51; When in use, the filter component 6 of the device can filter the electrolyte in the electrolytic cell 51. When in use, after the electrolyte enters the filter component 6, it will first enter the pipe 62. When passing through the pipe 62, the multiple groups of filter plates in the pipe 62 can filter the electrolyte, and separate the debris from the liquid in the electrolyte. The separated motor fluid can be directly passed through the pump body 63 and supplied back to the electrolytic cell 51, thereby reducing the consumption of the electrolyte and ensuring the purity of the electrolyte.

[0024] like Figure 3-Figure 4As shown, in this embodiment, specifically, the grabbing assembly 2 includes a support block 21, a bidirectional screw 22 and a limiting rod 23, the bidirectional screw 22 and the limiting rod 23 are respectively installed between the support blocks 21, the two ends of the bidirectional screw 22 and the limiting rod 23 are installed between the support frame 12 through bearings, a plurality of servo motors 15 are installed outside the support frame 12, the output ends of the plurality of servo motors 15 are respectively connected to the plurality of bidirectional screws 22, a plurality of cylinders are equidistantly installed at the bottom of the support block 21, a fixed disk 24 is installed at the output end of the cylinder, an auxiliary disk 25 is installed at the bottom of the fixed disk 24, a clamping ring is installed at the bottom of the auxiliary disk 25, and a driving assembly 7 is installed between the fixed disk 24 and the auxiliary disk 25; When in use, the grabbing component 2 of the device can grab the impeller blank and move the impeller blank. During specific use, the grabbing component 2 can move in the support frame 12 under the drive of the servo motor 15, because the servo motor 15 can drive the bidirectional screw 22 to rotate, and when the bidirectional screw 22 rotates, the support block 21 can drive the bidirectional screw 22 to move back and forth on the bidirectional screw 22, and the limit rod 23 can limit the moving direction of the support block 21. When the support block 21 moves to the position detected by the sensor, the cylinder at the bottom of the support block 21 will drive the fixed disk 24 to move downward for inspection, and the auxiliary disk 25 can assist the rotation speed of the driving component 7, and the clamping ring of the device can clamp the impeller blank and limit the impeller blank.

[0025] like Figure 4 As shown, in this embodiment, specifically, the driving assembly 7 includes a driving motor 71, the driving motor 71 is installed above the fixed disk 24, the output end of the driving motor 71 is connected to the auxiliary disk 25, a plurality of groups of cylinders are installed outside the clamping ring, and an arc-shaped clamping plate 26 is installed at the output end of the cylinder, and the arc-shaped clamping plate 26 is located at the inner ring of the clamping ring; When in use, the driving assembly 7 can drive the impeller blank to rotate. In specific use, the driving motor 71 can drive the auxiliary disk 25 to rotate, and a clamping ring is provided at the bottom of the auxiliary disk 25. When the clamping ring clamps the impeller blank, it can drive the impeller blank to rotate together.

[0026] like Figure 4As shown, in this embodiment, specifically, a slide groove is provided at the bottom of the fixed disk 24, and the auxiliary disk 25 cooperates with the fixed disk 24 through the slide groove. A plurality of groups of matching magnets are arranged at the bottom of the fixed disk 24, and the plurality of groups of matching magnets are respectively and staggeredly installed at the bottom of the fixed disk 24, and half of the matching magnets have their S poles facing the auxiliary disk 25, and the other half of the matching magnets have their N poles facing the auxiliary disk 25. A plurality of groups of auxiliary magnets are installed at the bottom of the matching disk, and the plurality of groups of auxiliary magnets are respectively and equidistantly and staggeredly installed on the auxiliary disk 25, and half of the auxiliary magnets have their S poles facing the fixed disk 24, and the other half of the auxiliary magnets have their N poles facing the fixed disk 24. Because the auxiliary disk 25 cooperates with the fixed disk 24 through the slide groove, when the auxiliary disk 25 rotates, the auxiliary magnet above the auxiliary disk 25 can cooperate with the matching magnet on the fixed disk 24, thereby accelerating the rotation speed of the auxiliary disk 25, and making the impeller blank at the bottom of the auxiliary disk 25 rotate faster.

[0027] like Figure 1 As shown, in this embodiment, specifically, the controller 14 is installed on the side of the grinding device body 1, and a control panel is provided on the controller 14; The various devices of the grinding device body 1 can be controlled by the controller 14 , and the staff can operate them through the control panel on the controller 14 , thereby making it convenient for the staff to operate the grinding device body 1 .

[0028] Working principle: When the device is in use, the impeller blank can be polished through the polishing equipment body 1. First, the impeller blank can be subjected to basic physical polishing. After basic polishing, the device will test the polished impeller blank to test whether the impeller can achieve the expected effect. After the impeller has passed the test, the impeller blank will be precision polished to eliminate the fine particles remaining on the impeller blank, and then the finished product will be delivered. When in specific use, the impeller blank will be uniformly placed on the conveyor belt 13, and then the impeller blank can be clamped by the grabbing component 2, and the impeller blank is placed on the physical polishing component 3, and the impeller blank is surface polished by the physical polishing component 3. After polishing, the grabbing component 2 will place the impeller blank on the conveyor belt 13, and the impeller blank will be delivered to the conveyor belt 13 through the conveyor belt 13. The conveyor belt 13 transfers the impeller blank to the next step, and the impeller blank is placed on the impeller testing component 4 through the grabbing component 2 of the next step, and the impeller is tested to test whether the impeller can reach the corresponding centrifugal force. When the impeller reaches the expected centrifugal force, the impeller blank is subsequently precision polished to eliminate the fine particles remaining on the impeller blank. When the centrifugal force of the impeller is small, the power of the precision polishing component 5 will be increased when the impeller is subsequently precision polished. Because the centrifugal force of the impeller blank is small, there will be more particles on the surface of the impeller blank. When the power of the precision polishing component 5 is increased, the dissolution of particles on the surface of the impeller blank can be accelerated. The impeller blank after precision polishing will be placed on the conveyor belt 13, and the finished impeller will be transferred out through the conveyor belt 13.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A surface-adaptive grinding device for a fan impeller, comprising a grinding device body (1) and a controller (14), characterized in that: The grinding device body (1) comprises a support platform (11), a support frame (12) is installed above the support platform (11), a plurality of gripping components (2) are installed on the bottom surface of the support frame (12), a conveyor belt (13), a plurality of physical polishing components (3), a plurality of impeller test components (4) and a plurality of precision polishing components (5) are arranged above the support platform (11), the plurality of test components are respectively installed between the physical polishing components (3) and the precision polishing components (5), the physical polishing components (3) are capable of performing simple material polishing under pressure, the impeller test components (4) are capable of detecting the polishing degree of the impeller surface, and the precision polishing components (5) are capable of precision polishing the impeller.

2. A surface-adaptive grinding device for a fan impeller according to claim 1, characterized in that: The physical polishing component (3) comprises a polishing frame (31), the polishing frame (31) is slidably mounted above the support platform (11), a support rod (32) is mounted in the middle of the polishing frame (31), a mounting plate (33) is arranged inside the polishing frame (31), the mounting plate (33) cooperates with the limiting rod (23), a polishing pattern is arranged on the mounting plate (33), and a plurality of groups of detachable polishing papers (34) are arranged on the inner wall of the polishing frame (31), and the plurality of groups of detachable polishing papers (34) are equidistantly mounted on the polishing frame (31).

3. The surface-adaptive grinding device for a fan impeller according to claim 2, characterized in that: The detachable polishing paper (34) comprises a limiting clamping plate (341), the inner wall of the polishing frame (31) is provided with a plurality of groups of sliding grooves, the limiting clamping plates (341) are slidably mounted inside the sliding grooves, and polishing paper is mounted between the limiting clamping plates (341), and the polishing paper can polish the surface of the impeller.

4. The surface-adaptive grinding device for a fan impeller according to claim 3, characterized in that: The impeller test assembly (4) comprises a test slot (41), a gas outlet (42) is provided at the bottom of the test slot (41), a gas flow sensor (43) is installed inside the gas outlet (42), and the gas flow sensor (43) is connected to the controller (14).

5. The surface-adaptive grinding device for a fan impeller according to claim 4, characterized in that: The precision polishing component (5) comprises an electrolytic cell (51), the electrolytic cell (51) being connected to a controller (14), an electrolyte being added to the electrolytic cell (51), a drain pipe (52) being provided at the bottom of the electrolytic cell (51), an electric valve being installed between the drain trough and the drain pipe (52), a filter component (6) being arranged inside the support platform (11), the other end of the drain pipe (52) being connected to the filter component (6), and the filter component (6) being connected to the electrolytic cell (51).

6. The surface-adaptive grinding device for a fan impeller according to claim 5, characterized in that: The filter assembly (6) comprises a filter box (61), both ends of the filter box (61) are respectively connected to pipes (62), a plurality of groups of filter plates are installed inside the pipe (62), and the plurality of groups of filter plates are equidistantly installed inside the pipe (62), a pump body (63) is installed above the filter box (61), and the output ends of the pump body (63) are respectively connected to the plurality of groups of electrolytic cells (51).

7. The surface-adaptive grinding device for a fan impeller according to claim 6, characterized in that: The grab assembly (2) comprises a support block (21), a bidirectional screw (22) and a limit rod (23); the bidirectional screw (22) and the limit rod (23) are respectively installed between the support blocks (21); both ends of the bidirectional screw (22) and the limit rod (23) are installed between the support frame (12) through bearings; a plurality of servo motors (15) are installed outside the support frame (12); the output ends of the plurality of servo motors (15) are respectively connected to the plurality of bidirectional screws (22); a plurality of cylinders are equidistantly installed at the bottom of the support block (21); a fixed disk (24) is installed at the output end of the cylinder; an auxiliary disk (25) is installed at the bottom of the fixed disk (24); a clamping ring is installed at the bottom of the auxiliary disk (25); and a driving assembly (7) is installed between the fixed disk (24) and the auxiliary disk (25).

8. The surface-adaptive grinding device for a fan impeller according to claim 7, characterized in that: The driving assembly (7) comprises a driving motor (71), the driving motor (71) being mounted above the fixing plate (24), the output end of the driving motor (71) being connected to the auxiliary plate (25), a plurality of groups of cylinders being mounted outside the clamping ring, the output end of the cylinders being mounted with an arc-shaped clamping plate (26), and the arc-shaped clamping plate (26) being located inside the clamping ring.

9. The surface-adaptive grinding device for a fan impeller according to claim 8, characterized in that: A slide groove is provided at the bottom of the fixed disk (24), and the auxiliary disk (25) cooperates with the fixed disk (24) via the slide groove. A plurality of groups of matching magnets are arranged at the bottom of the fixed disk (24), and the plurality of groups of matching magnets are respectively and staggeredly installed at the bottom of the fixed disk (24), half of the matching magnets have their S poles facing the auxiliary disk (25), and the other half of the matching magnets have their N poles facing the auxiliary disk (25). A plurality of groups of auxiliary magnets are installed at the bottom of the matching disk, and the plurality of groups of auxiliary magnets are respectively and staggeredly installed on the auxiliary disk (25) at equal distances, half of the auxiliary magnets have their S poles facing the fixed disk (24), and the other half of the auxiliary magnets have their N poles facing the fixed disk (24).

10. The surface-adaptive grinding device for a fan impeller according to claim 9, characterized in that: The controller (14) is installed on the side of the grinding equipment body (1), and a control panel is provided on the controller (14).

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