A water pump impeller surface finishing treatment device and method

Abstract

The application relates to the technical field of water pump processing, and discloses a water pump impeller surface finish processing device and method, which comprises a fixed frame, a movable frame, an annular slide rail, a fine grinding assembly, a rotating part, a first clamping part, a second clamping part and a lifting part. The movable frame is slidably arranged on the fixed frame through a second sliding block, and the annular slide rail is arranged at the lower part of the movable frame. The fine grinding assembly comprises a driving part, a first fine grinding part, a machine box and a second fine grinding part. The driving part is slidably arranged at the lower part of the annular slide rail, the first fine grinding part is arranged on the driving part, the machine box is arranged on the first fine grinding part, a through groove is formed in the lower part of the machine box, the second fine grinding part is slidably arranged in the machine box, the rotating part is installed on the first fine grinding part, the first clamping part is installed on the movable frame, the second clamping part is installed in the fixed frame, and the lifting part is installed on the first clamping part. Through the technical scheme, the problems of low machining precision, incomplete machining and poor production quality in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of water pump processing technology, specifically to a device and method for precision machining of water pump impeller surfaces. Background Technology

[0002] A water pump impeller is a disc-shaped part composed of many curved blades and is one of the main working components of a water pump. Its main function is to accelerate the liquid entering the pump and push the liquid from the pump inlet to the pump outlet, thereby forming the flow of water.

[0003] In the production of water pump impellers, the impellers are mainly machined on a lathe. First, the outer diameter or rear end ring of the impeller is clamped with a tool, and the flow channel center or the flow channel surface of the front and rear cover plates is axially aligned. After alignment, the impeller is clamped and the inner hole of the impeller is positioned. Then, the front end ring of the impeller is precision machined, and then the balance hole of the water pump impeller is drilled to ensure that the spacing of the blades is uniform. The production of the water pump impeller is then completed. During the machining process, the water pump impeller is mostly precision machined manually. Since the water pump impeller is generally composed of cover plates and blades, it is difficult for manual labor to grind and polish the dead corners between the cover plates and blades, which affects the working efficiency of the water pump and is prone to quality problems. Moreover, the precision of manual operation is difficult to standardize, and the work efficiency is low, making it difficult to carry out mass production. Therefore, we propose a surface finishing device and method for water pump impellers. Summary of the Invention

[0004] This invention proposes a device and method for precision machining of the surface of a water pump impeller, which solves the problems of low machining accuracy, incomplete machining, and poor production quality in related technologies.

[0005] The technical solution of the present invention is as follows:

[0006] A device for finishing the surface of a water pump impeller includes a fixed frame and further includes:

[0007] A movable frame, which is slidably mounted on the fixed frame via a first slider;

[0008] An annular slide rail is provided at the lower part of the movable frame;

[0009] A fine grinding assembly includes a drive unit, a first fine grinding unit, a housing, and a second fine grinding unit. The drive unit is slidably disposed on the lower part of the annular slide rail. The first fine grinding unit is disposed on the drive unit. The housing is disposed on the first fine grinding unit. A through groove is provided in the lower part of the housing. The second fine grinding unit is slidably disposed inside the housing.

[0010] A rotating part, which is mounted on the first fine grinding part;

[0011] A first clamping part is mounted on the movable frame;

[0012] The second clamping part is installed inside the fixed frame;

[0013] A lifting part is mounted on the first clamping part.

[0014] Based on the aforementioned solution, the drive unit includes:

[0015] An annular connecting frame, which is rotatably mounted on the annular slide rail;

[0016] A sleeve shaft is disposed at the lower part of the annular connecting frame;

[0017] A sleeve, which is rotatably mounted on the sleeve shaft;

[0018] An incomplete toothed ring, wherein the incomplete toothed ring is sleeved on the sleeve;

[0019] A sixth motor is disposed on the side of the annular connecting frame;

[0020] A first gear is disposed at the output end of the sixth motor and meshes with the incomplete gear ring.

[0021] A first connecting rod is disposed on the sleeve, and a groove is provided at the end of the first connecting rod away from the sleeve.

[0022] A first spring is installed in the groove of the first connecting rod;

[0023] The second connecting rod is slidably disposed within the groove of the first connecting rod, and the second connecting rod is connected to the first spring.

[0024] Based on the aforementioned solution, the first fine grinding section includes:

[0025] A housing, wherein the housing is disposed at the end of the second connecting rod away from the first spring;

[0026] A first motor is installed inside the housing, and the output end of the first motor passes through the housing.

[0027] The first polishing wheel is disposed at the output end of the first motor.

[0028] Based on the aforementioned solution, the second fine grinding section includes:

[0029] The second motor is slidably disposed in a through slot opened in the lower part of the chassis, and the chassis is connected to the housing;

[0030] A second spring is disposed between the second motor and the chassis;

[0031] The second polishing wheel is disposed at the output end of the second motor;

[0032] A connecting plate is rotatably mounted at the output end of the second motor and slidably connected to the chassis.

[0033] The liquid storage tank is provided in two sets, with two liquid storage tanks in each set. One set of liquid storage tanks is symmetrically arranged at both ends of the connecting plate, and the other set of liquid storage tanks is symmetrically arranged at both ends of the housing.

[0034] Each of the liquid storage tanks is rotatably equipped with an auxiliary wheel at both ends;

[0035] The nozzles are provided in a plurality of them. On each of the liquid storage tanks, a plurality of nozzles are provided at equal distances between the two auxiliary wheels.

[0036] Based on the aforementioned solution, the rotating part includes:

[0037] A third motor is mounted on the annular connecting frame;

[0038] The second toothed ring is sleeved on the annular slide rail;

[0039] The second gear is disposed at the output end of the third motor and meshes with the second gear ring.

[0040] Based on the aforementioned solution, the first clamping part includes:

[0041] A clamping frame, wherein the clamping frame is disposed inside the fixed frame;

[0042] An electric cylinder is located at the center of the lower part of the movable frame;

[0043] A clamping block is disposed at the output end of the electric cylinder;

[0044] A support pad is disposed at the center of the upper part of the clamping frame, and the support pad corresponds to the clamping block.

[0045] Based on the aforementioned solution, the second clamping part includes:

[0046] A bidirectional screw, which is rotatably disposed inside the clamping frame;

[0047] A fourth motor is mounted on the clamping frame, and the output end of the fourth motor passes through the clamping frame and is connected to the bidirectional screw.

[0048] A fixing block is disposed at the center position inside the clamping frame;

[0049] A rotating ring, which passes through and rotatably disposed inside the fixed block, is fixedly connected to the bidirectional screw.

[0050] The first nut, there are two first nuts, and the two first nuts are symmetrically sleeved on the bidirectional screw;

[0051] The second slider is provided on each of the first nuts;

[0052] A clamping frame is rotatably mounted on the top of each of the second sliders;

[0053] Anti-slip pads are provided at both ends of each of the clamping frames.

[0054] Based on the aforementioned solution, the lifting section includes:

[0055] The fifth motor, there are two of them, and the two fifth motors are symmetrically mounted on the clamping frame;

[0056] The second screw is provided at the output end of each of the fifth motors;

[0057] The second nut is fitted on both of the second screws and is connected to the movable frame.

[0058] A method for finishing the surface of a water pump impeller, comprising the aforementioned water pump impeller surface finishing device, further comprising the following steps:

[0059] S1. First, move the fine grinding assembly and the first clamping part to the working position. Simultaneously start the fifth motor, drive the second screw to rotate, drive the second nut to move, drive the movable frame to move, and drive the fine grinding assembly and the first clamping part to the working position.

[0060] S2. Then, the pump impeller is centered and clamped. First, the movable frame is moved to the set position, and then the electric cylinder is activated. The electric cylinder pushes the clamping block onto the balance hole of the pump impeller. Since the clamping block has a conical structure, the pump impeller is centered and clamped by the clamping block and the support pad. Then, the fourth motor is activated, which drives the bidirectional screw to rotate. Due to the setting of the rotating ring, when the bidirectional screw rotates, the rotating ring also rotates inside the fixed block along with the rotation of the bidirectional screw. This improves the stability of clamping. As the bidirectional screw rotates, it drives the first nut to move in the opposite direction. The reverse movement of the first nut drives the second slider to move in the opposite direction inside the clamping frame, thereby driving the clamping frame to further clamp the water pump impeller. Since the clamping frame and the second slider are rotatably connected, the water pump impeller can be further aligned when clamping it. Furthermore, the anti-slip pad makes the clamping of the water pump impeller more stable, reducing the possibility of the water pump impeller being processed unqualified due to misalignment.

[0061] S3. Before precision machining the water pump impeller, the sixth motor is started first. The sixth motor drives the first gear to rotate, which in turn drives the incomplete gear ring to rotate. The rotation of the incomplete gear ring drives the sleeve to rotate along the sleeve shaft. The rotation of the sleeve drives the first connecting rod to move, which in turn drives the first spring and the second connecting rod to move, thereby moving the first precision grinding part and the second precision grinding part to the working position.

[0062] S4. When precision machining the water pump impeller, firstly, the housing is moved to the working position via the second connecting rod. The auxiliary wheel ensures that the first polishing wheel and the water pump impeller maintain the same distance, guaranteeing dimensional accuracy. The auxiliary wheel, in conjunction with the second spring, ensures the second polishing wheel is tightly attached to the water pump impeller. Then, the first motor is started, driving the first polishing wheel to rotate, thus precision machining the water pump impeller. The second motor is then started, driving the second polishing wheel to rotate, thus precision machining the water pump impeller. The first polishing wheel is used in conjunction with the second polishing wheel to perform precision machining on the water pump impeller. The elasticity of the first spring ensures that the first polishing wheel remains in close contact with the surface of the water pump impeller, improving the quality of the precision machining. Simultaneously, the nozzle is activated, spraying the polishing liquid stored in the storage tank evenly onto the water pump impeller, further enhancing the machining accuracy of the first and second polishing wheels. The engagement between the first gear and the incomplete gear ring causes the first connecting rod to rotate at a uniform speed, resulting in more even machining of the water pump impeller by the first and second precision grinding sections, further improving the quality of the precision machining.

[0063] S5. When precision machining the water pump impeller, the position of the annular connecting frame needs to be moved simultaneously. First, start the third motor, which drives the second gear to rotate. Through the cooperation between the second gear and the second gear ring, the annular connecting frame is driven to rotate, thereby improving work efficiency.

[0064] Compared with the prior art, the present invention has the following beneficial effects:

[0065] 1. In this invention, a sixth motor drives a first gear to rotate, which in turn drives an incomplete gear ring to rotate. The rotation of the incomplete gear ring drives a sleeve to rotate along the sleeve shaft, which in turn drives a first connecting rod to move. This, in turn, drives a first spring and a second connecting rod to move, thereby bringing the first and second fine grinding parts to their working positions. Through the cooperation between the first gear and the incomplete gear ring, the first connecting rod rotates at a uniform speed, thus enabling the first and second fine grinding parts to process the water pump impeller more evenly and improving the quality of the fine grinding.

[0066] 2. In this invention, the auxiliary wheel ensures that the first polishing wheel and the water pump impeller maintain the same distance, guaranteeing dimensional accuracy. The auxiliary wheel, in conjunction with the second spring, keeps the second polishing wheel firmly against the water pump impeller. The first motor then performs finishing on the water pump impeller using the first polishing wheel, while the second motor drives the second polishing wheel to rotate. This allows the second and first polishing wheels to work together to finish the impeller. The elasticity of the first spring ensures the first polishing wheel remains firmly against the surface of the water pump impeller, improving the quality of the finishing process. Simultaneously, the nozzle is activated, spraying the polishing liquid stored in the storage tank evenly onto the water pump impeller, further enhancing the finishing accuracy of the first and second polishing wheels and improving the overall quality of the finishing process.

[0067] 3. In this invention, the movable frame is moved to the set position, and then the electric cylinder is started. The electric cylinder pushes the clamping block onto the balance hole of the water pump impeller. Since the clamping block has a conical structure, the water pump impeller is aligned and clamped by the clamping block and the support pad, which reduces the possibility of the water pump impeller being processed unqualified due to misalignment.

[0068] 4. In this invention, while the pump impeller is being precision machined, the position of the annular connecting frame is moved. First, the third motor is started, and the second gear is driven to rotate through the cooperation between the second gear and the second gear ring, thereby driving the annular connecting frame to rotate, thus improving work efficiency. Attached Figure Description

[0069] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0070] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention;

[0071] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0072] Figure 3 This is a schematic diagram of the structure of the precision grinding component and the rotating part in this invention.

[0073] Figure 4 This is a cross-sectional view of the precision grinding component in this invention;

[0074] Figure 5 This is a schematic diagram of the structure of the liquid storage tank, auxiliary wheel and nozzle in this invention;

[0075] Figure 6 For the present invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0076] The labels in the diagram represent: 1. Fixed frame; 2. Movable frame; 3. First slider; 4. Circular slide rail; 5. Housing; 6. Circular connecting frame; 7. Sleeve shaft; 8. Sleeve; 9. Incomplete gear ring; 10. Sixth motor; 11. First gear; 12. First connecting rod; 13. First spring; 14. Second connecting rod; 15. Housing; 16. First motor; 17. First polishing wheel; 18. Second motor; 19. Second spring; 20. Second polishing wheel; 21. 21. Connecting plate; 22. Liquid storage tank; 23. Auxiliary wheel; 24. Nozzle; 25. Third motor; 26. Second gear ring; 27. Second gear; 28. Clamping frame; 29. ​​Electric cylinder; 30. Clamping block; 31. Support pad; 32. Bidirectional screw; 33. Fourth motor; 34. Fixing block; 35. Rotating ring; 36. First nut; 37. Second slider; 38. Clamping frame; 39. Anti-slip pad; 40. Fifth motor; 41. Second screw; 42. Second nut. Detailed Implementation

[0077] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0078] like Figures 1 to 6 As shown in the figure, this embodiment proposes a water pump impeller surface finishing device, including a fixed frame 1, a movable frame 2, an annular slide rail 4, a fine grinding assembly, a rotating part, a first clamping part, a second clamping part, and a lifting part. The movable frame 2 is slidably mounted on the fixed frame 1 via a first slider 3. The annular slide rail 4 is located at the lower part of the movable frame 2. The fine grinding assembly includes a driving part, a first fine grinding part, a housing 5, and a second fine grinding part. The driving part is slidably mounted at the lower part of the annular slide rail 4. The first fine grinding part is mounted on the driving part. The housing 5 is mounted on the first fine grinding part. A through groove is provided at the lower part of the housing 5. The second fine grinding part is slidably mounted inside the housing 5.

[0079] The aforementioned drive unit includes an annular connecting frame 6, a sleeve shaft 7, a sleeve 8, an incomplete gear ring 9, a sixth motor 10, a first gear 11, a first connecting rod 12, a first spring 13, and a second connecting rod 14. The annular connecting frame 6 is rotatably mounted on the annular slide rail 4. The sleeve shaft 7 is located at the lower part of the annular connecting frame 6. The sleeve 8 is rotatably mounted on the sleeve shaft 7. The incomplete gear ring 9 is sleeved on the sleeve 8. The sixth motor 10 is located on the side of the annular connecting frame 6. The first gear 11 is located at the output end of the sixth motor 10 and meshes with the incomplete gear ring 9. The first connecting rod 12 is located on the sleeve 8. A groove is formed at the end of the first connecting rod 12 away from the sleeve 8. The first spring 13 is installed in the groove of the first connecting rod 12. The second connecting rod 14 is slidably mounted in the groove of the first connecting rod 12 and is connected to the first spring 13.

[0080] Specifically, during the precision machining of the water pump impeller, the sixth motor 10 is first started, which drives the first gear 11 to rotate. The rotation of the first gear 11 drives the incomplete gear ring 9 to rotate, which in turn drives the sleeve 8 to rotate along the sleeve shaft 7. The rotation of the sleeve 8 drives the first connecting rod 12 to move, which in turn drives the first spring 13 and the second connecting rod 14 to move, thereby bringing the first and second precision grinding parts to the working position. Through the cooperation between the first gear 11 and the incomplete gear ring 9, the first connecting rod 12 rotates at a uniform speed, which allows the first and second precision grinding parts to machine the water pump impeller more evenly, thus improving the quality of the precision machining.

[0081] The first fine grinding section includes a housing 15, a first motor 16, and a first polishing wheel 17. The housing 15 is located at the end of the second connecting rod 14 away from the first spring 13. The first motor 16 is installed inside the housing 15, and the output end of the first motor 16 passes through the housing 15. The first polishing wheel 17 is located at the output end of the first motor 16.

[0082] Specifically, when performing precision machining on the water pump impeller, the casing 15 is first moved to the working position via the second connecting rod 14, and then the first motor 16 is started. The first motor 16 drives the first polishing wheel 17 to rotate, thereby performing precision machining on the water pump impeller. Through the elasticity of the first spring 13, the first polishing wheel 17 is kept in close contact with the surface of the water pump impeller, which improves the quality of the precision machining of the water pump impeller.

[0083] The aforementioned second fine grinding section includes a second motor 18, a second spring 19, a second polishing wheel 20, a connecting plate 21, a liquid storage tank 22, auxiliary wheels 23, and nozzles 24. The second motor 18 is slidably disposed in a through groove opened at the lower part of the housing 5, which is connected to the casing 15. The second spring 19 is disposed between the second motor 18 and the housing 5. The second polishing wheel 20 is disposed at the output end of the second motor 18. The connecting plate 21 is rotatably disposed at the output end of the second motor 18 and slidably connected to the housing 5. There are two sets of liquid storage tanks 22, with two tanks in each set. One set of liquid storage tanks 22 is symmetrically disposed at both ends of the connecting plate 21, and the other set of liquid storage tanks 22 is symmetrically disposed at both ends of the casing 15. Each liquid storage tank 22 has an auxiliary wheel 23 rotatably disposed at both ends. There are several nozzles 24, with several nozzles 24 evenly spaced between the two auxiliary wheels 23 on each liquid storage tank 22.

[0084] Specifically, during the precision machining of the water pump impeller, the casing 15 is first moved to the working position via the second connecting rod 14. The auxiliary wheel 23 ensures that the first polishing wheel 17 maintains the same distance from the water pump impeller, guaranteeing dimensional accuracy. The auxiliary wheel 23, in conjunction with the second spring 19, ensures that the second polishing wheel 20 is tightly attached to the water pump blades. Then, the second motor 18 is simultaneously started, driving the second polishing wheel 20 to rotate. This allows the second polishing wheel 20 to work in conjunction with the first polishing wheel 17 to precision machine the water pump impeller. Simultaneously, the nozzle 24 is activated, uniformly spraying the polishing liquid stored in the storage tank 22 onto the water pump impeller, improving the machining accuracy of the first polishing wheel 17 and the second polishing wheel 20 on the water pump impeller.

[0085] The rotating part is installed on the first fine grinding part. The rotating part includes a third motor 25, a second gear ring 26 and a second gear 27. The third motor 25 is installed on the annular connecting frame 6. The second gear ring 26 is sleeved on the annular slide rail 4. The second gear 27 is located at the output end of the third motor 25 and meshes with the second gear ring 26.

[0086] Specifically, when precision machining the water pump impeller, the position of the annular connecting frame 6 needs to be moved while precision machining the water pump impeller. First, start the third motor 25, which drives the second gear 27 to rotate. Through the cooperation between the second gear 27 and the second gear ring 26, the annular connecting frame 6 is driven to rotate.

[0087] The first clamping part is installed on the movable frame 2. The first clamping part includes a clamping frame 28, an electric cylinder 29, a clamping block 30, and a support pad 31. The clamping frame 28 is located inside the fixed frame 1. The electric cylinder 29 is located at the center of the lower part of the movable frame 2. The clamping block 30 is located at the output end of the electric cylinder 29. The support pad 31 is located at the center of the upper part of the clamping frame 28. The support pad 31 corresponds to the clamping block 30.

[0088] Specifically, before precision machining of the water pump impeller, the water pump impeller needs to be centered and clamped. First, the movable frame 2 is moved to the set position, and then the electric cylinder 29 is started. The electric cylinder 29 pushes the clamping block 30 onto the balance hole of the water pump impeller. Since the clamping block 30 has a conical structure, the water pump impeller is centered and clamped by the clamping block 30 and the support pad 31, which reduces the possibility of the water pump impeller being unqualified due to misalignment.

[0089] The second clamping part is installed inside the fixed frame 1. The second clamping part includes a bidirectional screw 32, a fourth motor 33, a fixing block 34, a rotating ring 35, a first nut 36, a second slider 37, a clamping frame 38, and an anti-slip pad 39. The bidirectional screw 32 is rotatably disposed inside the clamping frame 28. The fourth motor 33 is mounted on the clamping frame 28. The output end of the fourth motor 33 passes through the clamping frame 28 and is connected to the bidirectional screw 32. The fixing block 34 is disposed at the center position inside the clamping frame 28. The rotating ring 35 passes through and is rotatably disposed inside the fixing block 34. The rotating ring 35 is fixedly connected to the bidirectional screw 32. There are two first nuts 36, which are symmetrically sleeved on the bidirectional screw 32. Each first nut 36 is provided with a second slider 37. Each second slider 37 is rotatably disposed with a clamping frame 38 at its top. Each clamping frame 38 is provided with anti-slip pads 39 at both ends.

[0090] Specifically, when the pump impeller is fixed by the clamping block 30, the fourth motor 33 is started, which drives the bidirectional screw 32 to rotate. Due to the setting of the rotating ring 35, when the bidirectional screw 32 rotates, the rotating ring 35 also rotates inside the fixing block 34. The setting of the fixing block 34 improves the stability of the bidirectional screw rotation, thereby improving the stability of clamping. As the bidirectional screw 32 rotates, it drives the first nut 36 to move in the opposite direction. The reverse movement of the first nut 36 drives the second slider 37 to move in the opposite direction inside the clamping frame 28, thereby driving the clamping frame 38 to further clamp the pump impeller. Since the clamping frame 38 and the second slider 37 are rotatably connected, the pump impeller can be further aligned when clamping. The setting of the anti-slip pad 39 makes the clamping of the pump impeller more stable.

[0091] The lifting part is installed on the first clamping part. The lifting part includes a fifth motor 40, a second screw 41, and a second nut 42. There are two fifth motors 40, which are symmetrically installed on the clamping frame 28. Each fifth motor 40 has a second screw 41 at its output end. A second nut 42 is fitted on each of the two second screws 41. The second nut 42 is connected to the movable frame 2.

[0092] Specifically, before precision machining the water pump impeller, the precision grinding assembly needs to be moved to the working position. Simultaneously, the fifth motor 40 is started, which drives the second screw 41 to rotate. The rotation of the second screw 41 drives the second nut 42 to move. The movement of the second nut 42 drives the movable frame 2 to move. The movement of the movable frame 2 moves the precision grinding assembly to the working position, thereby performing precision machining on the water pump impeller.

[0093] A method for finishing the surface of a water pump impeller, comprising the aforementioned water pump impeller surface finishing device, further comprising the following steps:

[0094] S1. First, move the fine grinding assembly and the first clamping part to the working position. Simultaneously start the fifth motor 40, which drives the second screw 41 to rotate. The rotation of the second screw 41 drives the second nut 42 to move. The movement of the second nut 42 drives the movable frame 2 to move. The movement of the movable frame 2 moves the fine grinding assembly and the first clamping part to the working position.

[0095] S2. Then, the pump impeller is centered and clamped. First, the movable frame 2 is moved to the set position, and then the electric cylinder 29 is activated. The electric cylinder 29 pushes the clamping block 30 onto the balance hole of the pump impeller. Since the clamping block 30 has a conical structure, the pump impeller is centered and clamped by the clamping block 30 and the support pad 31. Then, the fourth motor 33 is activated, which drives the bidirectional screw 32 to rotate. Due to the setting of the rotating ring 35, when the bidirectional screw 32 rotates, the rotating ring 35 will also rotate inside the fixed block 34 along with the rotation of the bidirectional screw 32. The stability of the clamping is improved. As the bidirectional screw 32 rotates, it drives the first nut 36 to move in the opposite direction. The reverse movement of the first nut 36 drives the second slider 37 to move in the opposite direction inside the clamping frame 28, thereby driving the clamping frame 38 to further clamp the water pump impeller. Since the clamping frame 38 and the second slider 37 are rotatably connected, the water pump impeller can be further aligned when clamping it. With the anti-slip pad 39, the clamping of the water pump impeller is more stable, reducing the possibility of the water pump impeller being processed unqualified due to misalignment.

[0096] S3. Before precision machining the water pump impeller, first start the sixth motor 10. The sixth motor 10 drives the first gear 11 to rotate. The rotation of the first gear 11 drives the incomplete gear ring 9 to rotate. The rotation of the incomplete gear ring 9 drives the sleeve 8 to rotate along the sleeve shaft 7. The rotation of the sleeve 8 drives the first connecting rod 12 to move, thereby driving the first spring 13 and the second connecting rod 14 to move, thus bringing the first and second precision grinding parts to the working position.

[0097] S4. When performing precision machining on the water pump impeller, firstly, the housing 15 is moved to the working position via the second connecting rod 14. The auxiliary wheel 23 ensures that the first polishing wheel 17 maintains the same distance from the water pump impeller, guaranteeing dimensional accuracy. Through the cooperation between the auxiliary wheel 23 and the second spring 19, the second polishing wheel 20 is tightly pressed against the water pump blades. Then, the first motor 16 is started, driving the first polishing wheel 17 to rotate, thus performing precision machining on the water pump impeller. Next, the second motor 18 is started, driving the second polishing wheel 20 to rotate, thus performing precision machining on the water pump impeller. In conjunction with the first polishing wheel 17, the water pump impeller is precision-machined. The elasticity of the first spring 13 ensures that the first polishing wheel 17 remains firmly in contact with the surface of the water pump impeller, improving the quality of the precision machining. Simultaneously, the nozzle 24 is activated, uniformly spraying the polishing liquid stored in the storage tank 22 onto the water pump impeller, further enhancing the machining accuracy of the first polishing wheel 17 and the second polishing wheel 20. Through the engagement between the first gear 11 and the incomplete gear ring 9, the first connecting rod 12 rotates at a uniform speed, allowing the first and second precision grinding sections to process the water pump impeller more evenly, further improving the quality of the precision machining.

[0098] S5. When precision machining the water pump impeller, the position of the annular connecting frame 6 needs to be moved at the same time. First, start the third motor 25, and drive the second gear 27 to rotate through the third motor 25. Through the cooperation between the second gear 27 and the second gear ring 26, the annular connecting frame 6 is driven to rotate, thereby improving the efficiency of the work.

[0099] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for finishing the surface of a water pump impeller, comprising a fixed frame (1), characterized in that, Also includes: A movable frame (2) is slidably mounted on the fixed frame (1) via a first slider (3); An annular slide rail (4) is provided at the lower part of the movable frame (2); The fine grinding assembly includes a drive unit, a first fine grinding unit, a housing (5), and a second fine grinding unit. The drive unit is slidably disposed on the lower part of the annular slide rail (4). The first fine grinding unit is disposed on the drive unit. The housing (5) is disposed on the first fine grinding unit. A through groove is provided at the lower part of the housing (5). The second fine grinding unit is slidably disposed inside the housing (5). The drive unit includes: An annular connecting frame (6) is rotatably mounted on the annular slide rail (4); Sleeve shaft (7), the sleeve shaft (7) is disposed at the lower part of the annular connecting frame (6); Sleeve (8), which is rotatably mounted on the sleeve shaft (7); The first connecting rod (12) is disposed on the sleeve (8), and a groove is provided at one end of the first connecting rod (12) away from the sleeve (8); The first spring (13) is installed in the groove of the first connecting rod (12); The second connecting rod (14) is slidably disposed in the groove of the first connecting rod (12), and the second connecting rod (14) is connected to the first spring (13); The first fine grinding section includes: Housing (15), the housing (15) is disposed at the end of the second connecting rod (14) away from the first spring (13); A first motor (16) is installed inside the housing (15), and the output end of the first motor (16) passes through the housing (15). The first polishing wheel (17) is disposed at the output end of the first motor (16); The second fine grinding section includes: The second motor (18) is slidably disposed in a through slot opened at the lower part of the chassis (5), and the chassis (5) is connected to the housing (15); The second spring (19) is disposed between the second motor (18) and the housing (5); The second polishing wheel (20) is disposed at the output end of the second motor (18); A rotating part, which is mounted on the first fine grinding part; A first clamping part is mounted on the movable frame (2); The first clamping part includes: A clamping frame (28) is disposed inside the fixed frame (1); Electric cylinder (29), the electric cylinder (29) is located at the center of the lower part of the movable frame (2); A clamping block (30) is disposed at the output end of the electric cylinder (29); Support pad (31) is located at the center of the upper part of the clamping frame (28), and the support pad (31) corresponds to the clamping block (30); The second clamping part is installed inside the fixed frame (1); The lifting part is mounted on the first clamping part; The lifting section includes: The fifth motor (40) is provided in two, and the two fifth motors (40) are symmetrically mounted on the clamping frame (28); The second screw (41) is provided at the output end of each of the fifth motors (40). The second nut (42) is fitted on both of the two second screws (41), and the second nut (42) is connected to the movable frame (2).

2. The water pump impeller surface finishing device according to claim 1, characterized in that, The drive unit also includes: An incomplete toothed ring (9) is sleeved on the sleeve (8); A sixth motor (10) is disposed on the side of the annular connecting frame (6); The first gear (11) is disposed at the output end of the sixth motor (10) and meshes with the incomplete gear ring (9).

3. The water pump impeller surface finishing device according to claim 2, characterized in that, The second fine grinding section also includes: A connecting plate (21) is rotatably disposed at the output end of the second motor (18) and is slidably connected to the housing (5); The liquid storage tank (22) is provided in two sets, with two liquid storage tanks in each set. One set of liquid storage tanks (22) is symmetrically arranged at both ends of the connecting plate (21), and the other set of liquid storage tanks (22) is symmetrically arranged at both ends of the housing (15). Auxiliary wheels (23) are rotatably provided at both ends of each of the liquid storage tanks (22); The nozzle (24) is provided in a plurality of units. On each of the liquid storage tanks (22), a plurality of nozzles (24) are provided at equal distances between the two auxiliary wheels (23).

4. The water pump impeller surface finishing device according to claim 3, characterized in that, The rotating part includes: The third motor (25) is mounted on the annular connecting frame (6); The second toothed ring (26) is sleeved on the annular slide rail (4); The second gear (27) is disposed at the output end of the third motor (25) and meshes with the second gear ring (26).

5. The water pump impeller surface finishing device according to claim 4, characterized in that, The second clamping part includes: A bidirectional screw (32) is rotatably disposed inside the clamping frame (28); A fourth motor (33) is mounted on the clamping frame (28), and the output end of the fourth motor (33) passes through the clamping frame (28) and is connected to the bidirectional screw (32); A fixing block (34) is disposed at the center inside the clamping frame (28); A rotating ring (35) is disposed inside the fixed block (34) through and rotatably. The rotating ring (35) is fixedly connected to the bidirectional screw (32). Two first nuts (36) are provided, and the two first nuts (36) are symmetrically sleeved on the bidirectional screw (32); The second slider (37) is provided on each of the first nuts (36); Clamping frame (38), each of the second sliders (37) is rotatably provided with a clamping frame (38) on its top; Anti-slip pads (39) are provided at both ends of each of the clamping frames (38).

6. A method for finishing the surface of a water pump impeller, characterized in that, The water pump impeller surface finishing device according to claim 5 includes the following steps: S1. First, move the fine grinding assembly and the first clamping part to the working position. Simultaneously start the fifth motor (40). The fifth motor (40) drives the second screw (41) to rotate. The rotation of the second screw (41) drives the second nut (42) to move. The movement of the second nut (42) drives the movable frame (2) to move. The movement of the movable frame (2) moves the fine grinding assembly and the first clamping part to the working position. S2. Then, the pump impeller is centered and clamped. First, the movable frame (2) is moved to the set position, and then the electric cylinder (29) is started. The electric cylinder (29) pushes the clamping block (30) onto the balance hole of the pump impeller. Since the clamping block (30) is a conical structure, the pump impeller is centered and clamped by the clamping block (30) and the support pad (31). Then, the fourth motor (33) is started. The fourth motor (33) drives the bidirectional screw (32) to rotate. With the setting of the rotating ring (35), when the bidirectional screw (32) rotates, the rotating ring (35) will also rotate with the bidirectional screw (32) on the fixed position. The rotation inside the block (34) improves the stability of the clamping. As the bidirectional screw (32) rotates, it drives the first nut (36) to move in the opposite direction. The reverse movement of the first nut (36) drives the second slider (37) to move in the opposite direction inside the clamping frame (28), thereby driving the clamping frame (38) to further clamp the water pump impeller. Since the clamping frame (38) and the second slider (37) are rotatably connected, the water pump impeller can be further aligned when clamping it. With the anti-slip pad (39) in place, the water pump impeller is clamped more stably, reducing the number of water pump impellers that are not properly processed due to misalignment. S3. Before precision machining of the water pump impeller, the sixth motor (10) is started first. The sixth motor (10) drives the first gear (11) to rotate. The rotation of the first gear (11) drives the incomplete gear ring (9) to rotate. The rotation of the incomplete gear ring (9) drives the sleeve (8) to rotate along the sleeve shaft (7). The rotation of the sleeve (8) drives the first connecting rod (12) to move, thereby driving the first spring (13) and the second connecting rod (14) to move, thereby driving the first precision grinding part and the second precision grinding part to the working position. S4. When performing precision machining on the water pump impeller, firstly, the housing (15) is moved to the working position via the second connecting rod (14). The auxiliary wheel (23) ensures that the first polishing wheel (17) and the water pump impeller maintain the same distance, guaranteeing dimensional accuracy. Through the cooperation between the auxiliary wheel (23) and the second spring (19), the second polishing wheel (20) is pressed tightly against the water pump blades. Then, the first motor (16) is started, driving the first polishing wheel (17) to rotate, thus performing precision machining on the water pump impeller via the first polishing wheel (17). The second motor (18) is then started, driving the second polishing wheel (20) to rotate, thus performing precision machining on the water pump impeller via the second polishing wheel (17). The polishing wheel (20) cooperates with the first polishing wheel (17) to perform fine machining on the water pump impeller. Through the elasticity of the first spring (13), the first polishing wheel (17) is kept in close contact with the surface of the water pump impeller, which improves the quality of the water pump impeller fine machining. At the same time as fine machining, the nozzle (24) is activated, and the polishing liquid stored in the liquid storage tank (22) is evenly sprayed onto the water pump impeller through the nozzle (24), which improves the machining accuracy of the first polishing wheel (17) and the second polishing wheel (20) on the water pump impeller. Through the cooperation between the first gear (11) and the incomplete gear ring (9), the first connecting rod (12) rotates at a uniform speed, so that the first fine grinding part and the second fine grinding part process the water pump impeller more evenly, which improves the quality of fine machining. S5. When the water pump impeller is being precision machined, the position of the annular connecting frame (6) needs to be moved at the same time. First, start the third motor (25), and drive the second gear (27) to rotate through the third motor (25). Through the cooperation between the second gear (27) and the second gear ring (26), the annular connecting frame (6) is driven to rotate, thereby improving the efficiency of the work.

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