Water pump rotor core shaft outer circle grinding device

Abstract

This invention belongs to the field of water pump rotor mandrel external cylindrical grinding technology, specifically disclosing a water pump rotor mandrel external cylindrical grinding processing device, including a base frame, a clamping and fixing rotation mechanism, a feeding device, and a self-compensating dressing grinding device. The clamping and fixing rotation mechanism can quickly and accurately center and clamp the mandrel, ensuring grinding stability and accuracy; the automated grinding process, with coordinated operation, greatly improves production efficiency and reduces labor costs; the self-compensating grinding device can automatically dress the dull grinding wheel and compensate for the distance between the dressed grinding wheel and the mandrel, ensuring grinding continuity, effectively avoiding workpiece surface damage, improving mandrel fatigue strength and life, reducing production costs, and achieving a dual improvement in quality and efficiency.

Description

Technical Field

[0001] This invention belongs to the field of water pump rotor mandrel external cylindrical grinding technology, specifically referring to a water pump rotor mandrel external cylindrical grinding processing device. Background Technology

[0002] As a key component of a water pump, the machining quality of the pump rotor mandrel directly affects the pump's performance and service life. Grinding is a crucial step in the machining process of the pump rotor mandrel, ensuring its dimensional accuracy and surface quality.

[0003] Traditional water pump rotor mandrel grinding equipment suffers from numerous problems during operation. Firstly, the lack of efficient and precise centering clamping devices makes it difficult to ensure the mandrel's stability during grinding, leading to decreased grinding accuracy and impacting product quality. Secondly, after prolonged grinding, the grinding wheel's cutting edges gradually become dull and flattened. The dulled abrasive grains cannot effectively cut, instead squeezing and rubbing against the water pump rotor mandrel surface. The resulting heat easily causes surface burns, annealed or quenched layers, and microcracks, severely reducing the water pump rotor mandrel's fatigue strength and lifespan. Furthermore, when the grinding wheel becomes dull, manual intervention is required to dress and adjust the distance between the grinding wheel and the mandrel, a cumbersome and inefficient process that struggles to guarantee adjustment accuracy. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a grinding device for the outer diameter of a water pump rotor mandrel. The clamping and rotating mechanism can quickly and accurately center and clamp the mandrel, ensuring grinding stability and precision. The automated grinding process, operating collaboratively, greatly improves production efficiency and reduces labor costs. The self-compensating grinding component can automatically dress the dulled grinding wheel and compensate for the distance between the dressed grinding wheel and the mandrel, ensuring grinding continuity, effectively avoiding workpiece surface damage, improving mandrel fatigue strength and lifespan, reducing production costs, and achieving a dual improvement in quality and efficiency.

[0005] The technical solution adopted by this invention is as follows: This invention provides a grinding device for the outer diameter of a water pump rotor mandrel, including a base frame, a clamping and fixing rotating mechanism, a feeding device, and a self-compensating dressing grinding device. The feeding device is disposed on the base frame, the clamping and fixing rotating mechanism is disposed on the feeding device, and the self-compensating dressing grinding device is disposed on the base frame and connected to the feeding device. The self-compensating dressing grinding device includes a lever-type reduction assembly, an incomplete transmission assembly, and a self-compensating grinding component. The lever-type reduction assembly is disposed on the base frame and connected to the feeding device. The incomplete transmission assembly is disposed on the base frame and connected to the lever-type reduction assembly. The self-compensating grinding component is disposed on the base frame and connected to the incomplete transmission assembly.

[0006] Furthermore, the self-compensating grinding component includes a unidirectional rotary output dressing component and a grinding device. The unidirectional rotary output dressing component is mounted on a base frame, and the grinding device is mounted on the base frame and connected to the unidirectional rotary output dressing component. The unidirectional rotary output dressing component includes a rotating disk, a dressing rod, and a unidirectional rotation control component. The rotating disk is mounted on an incomplete transmission assembly, the dressing rod is mounted on the rotating disk, and the unidirectional rotation control component is mounted on the rotating disk. The dressing rod includes a supporting bending rod, a telescopic movable rod, a dressing plate, and a return spring. The supporting bending rod is mounted on the rotating disk. The telescopic movable rod is slidably and telescopically disposed within the supporting bending rod. The trimming plate is disposed on the telescopic movable rod. The return spring is disposed between the telescopic movable rod and the grinding device. The unidirectional rotation control component includes a control shaft, a ratchet, a fixed frame, a spring, and a locking plate. The control shaft is rotatably connected to the rotating disk. The ratchet is disposed on the control shaft. The fixed frame is disposed on the rotating disk. The locking plate is slidably and engagingly disposed within the fixed frame. The spring is disposed between the locking plate and the fixed frame. The lower end of the locking plate is connected to the ratchet. The upper end of the locking plate is provided with a control post, which is slidably and telescopically disposed within the fixed frame.

[0007] The grinding device includes a grinding transmission component and a grinding component. The grinding transmission component is mounted on the base frame and connected to the control shaft. The grinding component is mounted on the grinding transmission component.

[0008] Furthermore, the grinding transmission component includes a first grinding bevel gear, a second grinding bevel gear, a grinding transmission gear, a grinding drive gear, a grinding feed screw, and a grinding limit slide. The first grinding bevel gear is mounted on a control shaft, the second grinding bevel gear is rotatably mounted on a base frame, the grinding transmission gear is connected to the second grinding bevel gear, the grinding drive gear is rotatably mounted on the base frame and meshes with the grinding transmission gear, the grinding feed screw is rotatably mounted on the base frame and is connected to the grinding drive gear, the grinding drive gear is equipped with a rotation adjustment rod, and the grinding limit slide is mounted on the base frame.

[0009] As a further preferred embodiment of the present invention, the grinding component includes a movable support base, a protective cover, a grinding wheel, and a grinding motor. The movable support base is sleeved on the grinding feed screw and the grinding limit slide rod, and the movable support base is meshed with the grinding feed screw. The protective cover is disposed on the movable support base, and the grinding wheel is rotatably disposed inside the protective cover. The grinding motor is disposed on the movable support base, and the output end of the grinding motor is connected to the grinding wheel. One end of the return spring is connected to the telescopic movable rod, and the other end of the return spring is connected to the protective cover.

[0010] Furthermore, the incomplete transmission assembly includes a first transmission bevel gear, a second transmission bevel gear, an incomplete transmission gear, a meshing gear, a first meshing transmission bevel gear, and a second meshing transmission bevel gear. The first transmission bevel gear is mounted on the lever-type reduction assembly, the second transmission bevel gear is rotatably mounted on the base frame, the second transmission bevel gear is meshed with the first transmission bevel gear, the incomplete transmission gear is connected to the second transmission bevel gear, the first meshing transmission bevel gear is rotatably mounted on the base frame, the second meshing transmission bevel gear is rotatably mounted on the base frame, the second meshing transmission bevel gear is meshed with the first meshing transmission bevel gear, the meshing gear is connected to the first meshing transmission bevel gear, and the meshing gear is meshed with the incomplete transmission gear.

[0011] Furthermore, the lever-type deceleration assembly includes a lever-type gear, a reduction gear, a transmission gear, and a transmission shaft. The lever-type gear is mounted on the feeding device, the reduction gear is rotatably mounted on the base frame, and the reduction gear is meshed with the lever-type gear. The reduction gear is provided with a meshing pinion. The transmission gear is rotatably mounted on the base frame and is meshed with the meshing pinion. The transmission shaft is rotatably mounted on the base frame, one end of the transmission shaft is connected to the transmission gear, and the other end of the transmission shaft is connected to a transmission bevel gear.

[0012] The clamping and fixing rotation mechanism includes a fixed moving body, a rotating shell, a clamping drive component, a centering clamping component, and a rotating motor. The fixed moving body is engaged and slidably mounted on the feeding device. The rotating shell is rotatably mounted on the fixed moving body. The clamping drive component is mounted on the rotating shell. The centering clamping component is engaged and slidably mounted on the rotating shell. The rotating motor is mounted on the fixed moving body.

[0013] Furthermore, the clamping drive component includes a drive disk, a drive wheel, and a clamping motor. The drive disk is rotatably engaged in the rotating housing, and the drive wheel is rotatably mounted on the rotating housing. The drive wheel is meshed with the drive disk. The clamping motor is mounted on the rotating housing, and its output end passes through the rotating housing and is connected to the drive wheel. The drive disk is provided with a feed screw. The clamping drive component includes an engaging moving body and a movable clamping component. The rotating housing is provided with a moving groove, and the engaging moving body is slidably engaged in the moving groove. The bottom wall of the engaging moving body is provided with engagement patterns, which are meshed with the feed screw.

[0014] Furthermore, the feeding device includes a feeding screw, a feeding slide, and a feeding motor. The feeding screw is rotatably mounted on the base frame, the feeding slide is mounted on the base frame, the fixed moving body is sleeved on the feeding screw and the feeding slide, the feeding motor is mounted on the base frame, the output end of the feeding motor is connected to the feeding screw, and the lever gear is mounted on the feeding screw.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] 1. This invention achieves rapid centering and clamping of the water pump rotor spindle by setting up components such as a clamping motor, drive wheel, drive disc, feed screw, meshing moving body and movable clamping parts. The clamping process is highly automated and can accurately fix the water pump rotor spindle in the appropriate position, ensuring the stability of the spindle during the grinding process, improving grinding accuracy, and thus improving product quality.

[0017] 2. By utilizing the coordinated operation of multiple motors such as the feed motor, rotation motor, and grinding motor, the automatic rotation, movement, and grinding of the water pump rotor spindle are achieved. The entire grinding process is highly automated, reducing manual intervention, improving production efficiency, and reducing labor intensity.

[0018] 3. The self-compensating grinding component is a major innovation of this invention. Through a series of gear transmission mechanisms, the dulled grinding wheel can be automatically dressed during the grinding process. When the grinding wheel cutting edge becomes dull, the dressing plate will automatically fit into the grinding surface of the grinding wheel to dress it, ensuring that the grinding wheel is always in a good grinding state. At the same time, after dressing, the distance between the grinding wheel and the water pump rotor spindle can be automatically compensated, solving the problem that the diameter of the grinding wheel becomes smaller after dressing and cannot fit into the spindle, thus ensuring the continuity and accuracy of grinding.

[0019] 4. Because the grinding wheel can be dressed and compensated in a timely manner, problems such as burns and micro-cracks caused by the passivated grinding wheel to the surface of the water pump rotor spindle are avoided, which effectively improves the fatigue strength and life of the water pump rotor spindle and enhances the overall quality and performance of the product.

[0020] 5. Automated grinding and wheel dressing processes reduce manual operation and equipment downtime, improving production efficiency. Simultaneously, they extend wheel life and reduce wheel replacement frequency, thereby lowering production costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a water pump rotor mandrel external cylindrical grinding device proposed in this invention;

[0022] Figure 2 This is a left view of a grinding apparatus for the outer cylindrical surface of a water pump rotor mandrel according to the present invention;

[0023] Figure 3 This is a front view of a water pump rotor mandrel external cylindrical grinding device proposed in this invention;

[0024] Figure 4 This is a top view of a water pump rotor mandrel external cylindrical grinding device proposed in this invention;

[0025] Figure 5 This is a bottom view of a water pump rotor mandrel external cylindrical grinding device proposed in this invention;

[0026] Figure 6 A schematic diagram of a unidirectional rotating output repair component;

[0027] Figure 7 This is a schematic diagram of a self-compensating dressing grinding device.

[0028] Figure 8 This is a schematic diagram of an incomplete transmission assembly.

[0029] Figure 9 This is a schematic diagram of the lever-type deceleration assembly;

[0030] Figure 10A schematic diagram of the clamping and fixing rotating mechanism;

[0031] Figure 11 A cross-sectional schematic diagram of the clamping and fixing rotating mechanism;

[0032] Figure 12 This is a schematic diagram of the combination of the drive disc and the drive wheel;

[0033] Figure 13 This is a schematic diagram of the structure of the meshing moving body;

[0034] Figure 14 This is a structural diagram of the base frame.

[0035] The components include: 1. Base frame; 2. Clamping and fixing rotating mechanism; 3. Feeding device; 4. Self-compensating dressing grinding device; 5. Assisted reduction gear assembly; 6. Incomplete transmission assembly; 7. Self-compensating grinding component; 8. One-way rotation output dressing component; 9. Grinding device; 10. Rotary disk; 11. Dressing rod; 12. One-way rotation control component; 13. Support bending rod; 14. Telescopic movable rod; 15. Dressing plate; 16. Return spring; 17. Control shaft; 18. Ratchet; 19. Fixing frame; 20. Spring; 21. Clamping plate; 22. Grinding transmission component; 23. Grinding component; 24. Grinding bevel gear one; 25. Grinding bevel gear two; 26. Grinding transmission gear; 27. Grinding drive gear; 28. Grinding feed screw; 29. ​​Grinding limit slide bar; 30. Rotation adjustment. 31. Rod, 32. Movable support, 33. Protective cover, 34. Grinding wheel, 35. Grinding motor, 36. Transmission bevel gear one, 37. Transmission bevel gear two, 38. Incomplete transmission gear, 39. Meshing gear, 40. Meshing transmission bevel gear one, 41. Meshing transmission bevel gear two, 42. Assisted gear, 43. Reduction gear, 44. Transmission gear, 45. Transmission shaft, 46. Meshing pinion, 47. Fixed moving body, 48. Rotating shell, 49. Clamping drive component, 50. Centering clamping component, 51. Rotating motor, 52. Drive disc, 53. Drive wheel, 54. Clamping motor, 55. Feed screw, 56. Meshing moving body, 57. Movable clamping component, 58. Moving groove, 59. Meshing thread, 60. Feed screw, 61. Feed slide bar, 62. Feed motor.

[0036] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of 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.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] like Figure 1 , Figure 3 , Figure 5 , Figure 14 As shown, the present invention provides a grinding device for the outer diameter of a water pump rotor mandrel, including a base frame 1, a clamping and fixing rotating mechanism 2, a feeding device 3, and a self-compensating dressing grinding device 4. The feeding device 3 is mounted on the base frame 1, the clamping and fixing rotating mechanism 2 is mounted on the feeding device 3, and the self-compensating dressing grinding device 4 is mounted on the base frame 1. The self-compensating dressing grinding device 4 is connected to the feeding device 3.

[0040] like Figure 1 , Figure 4 , Figure 9 , Figure 10 As shown, the feeding device 3 includes a feeding screw 59, a feeding slide rod 60, and a feeding motor 61. The feeding screw 59 is rotatably mounted on the base frame 1, the feeding slide rod 60 is mounted on the base frame 1, the fixed moving body 46 is sleeved on the feeding screw 59 and the feeding slide rod 60, the feeding motor 61 is mounted on the base frame 1, the output end of the feeding motor 61 is connected to the feeding screw 59, and the lever gear 41 is mounted on the feeding screw 59.

[0041] like Figure 1 , Figure 10 , Figure 11 , Figure 12 , Figure 13As shown, the clamping and fixing rotation mechanism 2 includes a fixed moving body 46, a rotating shell 47, a clamping drive component 48, a centering clamping component 49, and a rotating motor 50. The fixed moving body 46 is engaged and slidably mounted on the feeding device 3. The rotating shell 47 is rotatably mounted on the fixed moving body 46. The clamping drive component 48 is mounted on the rotating shell 47. The centering clamping component 49 is engaged and slidably mounted on the rotating shell 47. The rotating motor 50 is mounted on the fixed moving body 46. The clamping drive component 48 includes a drive disk 51, a drive wheel 52, and a clamping motor 53. The drive disk 51 is engaged and rotatably mounted in the rotating shell 47. The drive wheel 52 is rotatably mounted on the rotating housing 47 and is meshed with the drive disc 51. The clamping motor 53 is mounted on the rotating housing 47, and its output end passes through the rotating housing 47 and is connected to the drive wheel 52. The drive disc 51 is provided with a feed screw ring 54. The clamping drive component 48 includes a meshing moving body 55 and a movable clamping component 56. The rotating housing 47 is provided with a moving groove 57. The meshing moving body 55 is engaged and slidably mounted in the moving groove 57. The bottom wall of the meshing moving body 55 is provided with a meshing pattern 58, which is meshed with the feed screw ring 54.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown, the self-compensating dressing grinding device 4 includes a lever-type reduction gear assembly 5, an incomplete transmission assembly 6, and a self-compensating grinding component 7. The lever-type reduction gear assembly 5 is mounted on the base frame 1 and is connected to the feed device 3. The incomplete transmission assembly 6 is mounted on the base frame 1 and is connected to the lever-type reduction gear assembly 5. The self-compensating grinding component 7 is mounted on the base frame 1 and is connected to the incomplete transmission assembly 6. The self-compensating grinding component 7 includes a unidirectional rotary output dressing component 8 and a grinding device 9. The unidirectional rotary output dressing component 8 is mounted on the base frame 1, and the grinding device 9 is mounted on the base frame 1 and connected to the unidirectional rotary output dressing component 8. The unidirectional rotation output repair component 8 includes a rotating disk 10, a repair rod 11, and a unidirectional rotation control component 12. The rotating disk 10 is mounted on the incomplete transmission assembly 6, the repair rod 11 is mounted on the rotating disk 10, and the unidirectional rotation control component 12 is mounted on the rotating disk 10. The repair rod 11 includes a supporting bending rod 13, a telescopic movable rod 14, a repair plate 15, and a return spring 16. The supporting bending rod 13 is mounted on the rotating disk 10, the telescopic movable rod 14 is telescopically slidably mounted within the supporting bending rod 13, the repair plate 15 is mounted on the telescopic movable rod 14, and the return spring 16 is located between the telescopic movable rod 14 and the grinding device 9. The unidirectional rotation control component 12 includes a control shaft 17 and a ratchet 18. The system comprises a fixed frame 19, a spring 20, and a clamping plate 21. A control shaft 17 is rotatably connected to a rotating disk 10. A ratchet 18 is mounted on the control shaft 17. The fixed frame 19 is mounted on the rotating disk 10. The clamping plate 21 is slidably engaged within the fixed frame 19. The spring 20 is located between the clamping plate 21 and the fixed frame 19. The lower end of the clamping plate 21 is connected to the ratchet 18. A control post is located at the upper end of the clamping plate 21 and is slidably telescopically mounted within the fixed frame 19. The grinding device 9 includes a grinding transmission component 22 and a grinding component 23. The grinding transmission component 22 is mounted on the base frame 1 and connected to the control shaft 17. The grinding component 23 is mounted on the grinding transmission component 22. The system includes a grinding bevel gear 24, a grinding bevel gear 25, a grinding transmission gear 26, a grinding drive gear 27, a grinding feed screw 28, and a grinding limit slide bar 29. The grinding bevel gear 24 is mounted on a control shaft 17. The grinding bevel gear 25 is rotatably mounted on a base frame 1. The grinding transmission gear 26 is connected to the grinding bevel gear 25. The grinding drive gear 27 is rotatably mounted on the base frame 1 and meshes with the grinding transmission gear 26. The grinding feed screw 28 is rotatably mounted on the base frame 1 and is connected to the grinding drive gear 27. The grinding drive gear 27 is equipped with a rotation adjustment rod 30. The grinding limit slide bar 29 is mounted on the base frame 1.The grinding component 23 includes a movable support 31, a protective cover 32, a grinding wheel 33, and a grinding motor 34. The movable support 31 is sleeved on the grinding feed screw 28 and the grinding limit slide 29, and is meshed with the grinding feed screw 28. The protective cover 32 is disposed on the movable support 31, and the grinding wheel 33 is rotatably disposed within the protective cover 32. The grinding motor 34 is disposed on the movable support 31, and its output end is connected to the grinding wheel 33. The return spring 16... One end of the spring 16 is connected to the telescopic movable rod 14, and the other end of the return spring 16 is connected to the protective cover 32; the incomplete transmission assembly 6 includes a transmission bevel gear 35, a transmission bevel gear 36, an incomplete transmission gear 37, a meshing gear 38, a meshing transmission bevel gear 39, and a meshing transmission bevel gear 40. The transmission bevel gear 35 is mounted on the lever-type reduction assembly 5, and the transmission bevel gear 36 is rotatably mounted on the base frame 1. The transmission bevel gear 36 meshes with the transmission bevel gear 35. The transmission gear 37 is connected to the second transmission bevel gear 36. The first meshing transmission bevel gear 39 is rotatably mounted on the base frame 1. The second meshing transmission bevel gear 40 is rotatably mounted on the base frame 1. The second meshing transmission bevel gear 40 is meshed with the first meshing transmission bevel gear 39. The meshing gear 38 is connected to the first meshing transmission bevel gear 39 and is also meshed with the incomplete transmission gear 37. The lever-type reduction assembly 5 includes a lever-type gear 41, a reduction gear 42, a transmission gear 43, and a transmission shaft 44. The lever gear 41 is mounted on the feeding device 3. The reduction gear 42 is rotatably mounted on the base frame 1 and meshes with the lever gear 41. The reduction gear 42 is equipped with a meshing pinion 45. The transmission gear 43 is rotatably mounted on the base frame 1 and meshes with the meshing pinion 45. The transmission shaft 44 is rotatably mounted on the base frame 1. One end of the transmission shaft 44 is connected to the transmission gear 43, and the other end of the transmission shaft 44 is connected to the transmission bevel gear 35.

[0043] In practical use, the water pump rotor mandrel to be ground is placed between the meshing moving bodies 55. The clamping motor 53 is started, and the rotation of the clamping motor 53 drives the drive wheel 52 to rotate. The rotation of the drive wheel 52 drives the drive disc 51 to rotate. The rotation of the drive disc 51 drives the feed screw ring 54 to rotate. The rotation of the feed screw ring 54 drives the meshing moving body 55 to move along the moving groove 57. The movement of the meshing moving body 55 drives the movable clamping part 56 to move until the water pump rotor mandrel is centered and clamped. After clamping and fixing, the feed motor 61 is started, and the rotation of the feed motor 61 drives the feed screw 59 to rotate. The rotation of the feed screw 59 drives the fixed moving body 46 to move. The movement of the fixed moving body 46 drives the rotating shell 47 to move. The movement of the rotating shell 47 drives the meshing moving body 55 to move. The movement of body 55 causes the clamped water pump rotor spindle to move until the end of the water pump rotor spindle matches the position of the grinding wheel 33. The control column is then pulled up, disengaging the clamping plate 21 from the ratchet 18. The rotating adjusting rod 30 is then rotated, causing the grinding drive gear 27 to rotate. The grinding drive gear 27 rotates, causing the grinding feed screw 28 to rotate. The grinding feed screw 28 rotates, causing the moving support seat 31 to move. The moving support seat 31 moves, causing the protective cover 32 to move. The protective cover 32 moves, causing the grinding wheel 33 to move, bringing it into contact with the water pump rotor spindle. After adjustment, the control column is lowered, and the rotating motor 50, grinding motor 34, and feed motor 61 are started. The rotating motor 50 rotates, causing the rotating housing 47 to rotate. The rotating housing 47 rotates, causing the meshing... The rotating moving body 55 drives the rotating clamping part 56 to rotate, which in turn drives the water pump rotor spindle to rotate. The rotating grinding motor 34 drives the grinding wheel 33 to rotate, which grinds the water pump rotor spindle. The rotating grinding wheel 33 grinds the water pump rotor spindle. The rotating feed motor 61 drives the feed screw 59 to rotate, which in turn drives the fixed moving body 46 to move, which in turn drives the water pump rotor spindle to move. This achieves the technical effect of grinding the entire water pump rotor spindle. After grinding for a period of time, the cutting edge of the grinding wheel 33 will gradually be worn flat and dulled. The dulled abrasive grains cannot cut effectively, but instead squeeze and rub against the surface of the water pump rotor spindle. The friction will generate a lot of heat, which can easily cause burns on the surface of the workpiece (producing an annealed layer or a quenched layer). The appearance of microcracks severely reduces the fatigue strength and lifespan of the water pump rotor spindle. The self-compensating grinding component 7 perfectly solves this problem. The feed screw 59 rotates, simultaneously driving the lever gear 41 to rotate. The lever gear 41 drives the reduction gear 42 to rotate, which in turn drives the meshing pinion 45 to rotate. The meshing pinion 45 then drives the transmission gear 43 to rotate at a reduced speed. The transmission gear 43 then drives the transmission shaft 44 to rotate, which in turn drives the first transmission bevel gear 35 to rotate. The first transmission bevel gear 35 then drives the second transmission bevel gear 36 to rotate, which in turn drives the incomplete transmission gear 37 to rotate. Only when the toothed part of the incomplete transmission gear 37 meshes with the meshing gear 38 will it drive the meshing gear 38 to rotate.The rotation of meshing gear 38 drives the first meshing bevel gear 39 to rotate, which in turn drives the second meshing bevel gear 40 to rotate. The second meshing bevel gear 40 then drives the rotating disk 10 to rotate. The rotating disk 10 then drives the supporting bent rod 13 to rotate, which in turn drives the telescopic movable rod 14 to rotate. The telescopic movable rod 14 then causes the dressing plate 15 to contact the grinding surface of the grinding wheel 33. At this time, the return spring 16 retracts, and the dressing plate 15 then contacts the dulled grinding wheel. When the grinding wheel 33 is being dressed, and the toothed part of the incomplete transmission gear 37 disengages from the meshing gear 38, the dressing plate 15 is reset and moved away from the grinding wheel 33 under the action of the return spring 16. When the dressing plate 15 is in contact with the grinding wheel 33, the rotating disk 10 rotates, simultaneously driving the fixed frame 19 to rotate. The rotation of the fixed frame 19 drives the clamping plate 21 to rotate, which in turn drives the ratchet 18 to rotate, which in turn drives the control shaft 17 to rotate. (And when the dressing plate 15 is reset and moved away from the grinding wheel 33...) The clamping plate 21 disengages from the ratchet 18, preventing the control shaft 17 from rotating (thus ensuring the dressed grinding wheel always moves closer to the water pump rotor spindle). The rotation of the control shaft 17 drives the first grinding bevel gear 24, which in turn drives the second grinding bevel gear 25. The second grinding bevel gear 25 then drives the grinding transmission gear 26, which in turn drives the grinding drive gear 27. The grinding drive gear 27 then drives the grinding feed screw 28, which in turn moves the movable support 31. The movable support 31 then moves the protective cover 32, which in turn moves the grinding wheel 33. The grinding wheel 33 moves closer to the water pump rotor spindle, automatically compensating for the distance between the dressed grinding wheel 33 and the water pump rotor spindle. This solves the problem of the dressed grinding wheel 33's reduced diameter failing to fit properly against the water pump rotor spindle. This is the specific workflow of the invention; repeat this step for future use.

[0044] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the foregoing and its equivalents.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A grinding apparatus for the outer diameter of a water pump rotor mandrel, characterized in that: The system includes a base frame (1), a clamping and fixing rotating mechanism (2), a feed device (3), and a self-compensating dressing grinding device (4). The feed device (3) is mounted on the base frame (1), the clamping and fixing rotating mechanism (2) is mounted on the feed device (3), and the self-compensating dressing grinding device (4) is mounted on the base frame (1). The self-compensating dressing grinding device (4) is connected to the feed device (3). The self-compensating dressing grinding device (4) includes a lever-type reduction assembly (5), an incomplete transmission assembly (6), and a self-compensating grinding component (7). The lever-type reduction assembly (5) is mounted on the base frame (1), and the lever-type reduction assembly (5) is connected to the feed device (3). The incomplete transmission assembly (6) is mounted on the base frame (1) and connected to the lever-type deceleration assembly (5). The self-compensating grinding component (7) is mounted on the base frame (1) and connected to the incomplete transmission assembly (6). The self-compensating grinding component (7) includes a unidirectional rotary output dressing component (8) and a grinding device (9). The unidirectional rotary output dressing component (8) is mounted on the base frame (1), and the grinding device (9) is mounted on the base frame (1) and connected to the unidirectional rotary output dressing component (8). The unidirectional rotary output dressing component (8) includes a rotating disk (10) and a dressing rod (11). The rotating disk (10) is mounted on the incomplete transmission assembly (6), and the repair rod (11) is mounted on the rotating disk (10). The one-way rotation control element (12) is mounted on the rotating disk (10). The repair rod (11) includes a supporting bending rod (13), a telescopic movable rod (14), a repair plate (15), and a return spring (16). The supporting bending rod (13) is mounted on the rotating disk (10), the telescopic movable rod (14) is telescopically slidably mounted in the supporting bending rod (13), the repair plate (15) is mounted on the telescopic movable rod (14), and the return spring (16) is mounted on the telescopic movable rod (14) and the grinding device (6). Between 9); the one-way rotation control component (12) includes a control shaft (17), a ratchet (18), a fixed frame (19), a spring (20), and a locking plate (21). The control shaft (17) is rotatably connected to the rotating disk (10). The ratchet (18) is located on the control shaft (17). The fixed frame (19) is located on the rotating disk (10). The locking plate (21) is engaged and slidably located in the fixed frame (19). The spring (20) is located between the locking plate (21) and the fixed frame (19). The lower end of the locking plate (21) is engaged and connected to the ratchet (18). The upper end of the locking plate (21) is provided with a control post. The control post is telescopically slidably located in the fixed frame (19).The grinding device (9) includes a grinding transmission component (22) and a grinding component (23). The grinding transmission component (22) is mounted on the base frame (1) and is connected to the control shaft (17). The grinding component (23) is mounted on the grinding transmission component (22).

2. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 1, characterized in that: The grinding transmission component (22) includes a first grinding bevel gear (24), a second grinding bevel gear (25), a grinding transmission gear (26), a grinding drive gear (27), a grinding feed screw (28), and a grinding limit slide bar (29). The first grinding bevel gear (24) is mounted on the control shaft (17), and the second grinding bevel gear (25) is rotatably mounted on the base frame (1). The grinding transmission gear (26) is connected to the second grinding bevel gear (25). The grinding drive gear (27) is rotatably mounted on the base frame (1), and the grinding drive gear (27) is meshed with the grinding transmission gear (26). The grinding feed screw (28) is rotatably mounted on the base frame (1), and the grinding feed screw (28) is connected to the grinding drive gear (27). The grinding drive gear (27) is provided with a rotation adjustment rod (30), and the grinding limit slide rod (29) is provided on the base frame (1).

3. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 2, characterized in that: The grinding component (23) includes a movable support base (31), a protective cover (32), a grinding wheel (33), and a grinding motor (34). The movable support base (31) is sleeved on the grinding feed screw (28) and the grinding limit slide (29). The movable support base (31) is meshed with the grinding feed screw (28). The protective cover (32) is located on the movable support base (31). The grinding wheel (33) is rotatably located inside the protective cover (32). The grinding motor (34) is located on the movable support base (31). The output end of the grinding motor (34) is connected to the grinding wheel (33). One end of the return spring (16) is connected to the telescopic movable rod (14), and the other end of the return spring (16) is connected to the protective cover (32).

4. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 3, characterized in that: The incomplete transmission assembly (6) includes a first transmission bevel gear (35), a second transmission bevel gear (36), an incomplete transmission gear (37), a meshing gear (38), a first meshing transmission bevel gear (39), and a second meshing transmission bevel gear (40). The first transmission bevel gear (35) is mounted on the lever-type reduction assembly (5), and the second transmission bevel gear (36) is rotatably mounted on the base frame (1). The second transmission bevel gear (36) meshes with the first transmission bevel gear (35). The incomplete transmission gear (37) is connected to the transmission bevel gear two (36). The meshing transmission bevel gear one (39) is rotatably mounted on the base frame (1). The meshing transmission bevel gear two (40) is rotatably mounted on the base frame (1). The meshing transmission bevel gear two (40) is meshed with the meshing transmission bevel gear one (39). The meshing gear (38) is connected with the meshing transmission bevel gear one (39). The meshing gear (38) is meshed with the incomplete transmission gear (37).

5. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 4, characterized in that: The lever-type deceleration assembly (5) includes a lever gear (41), a deceleration gear (42), a transmission gear (43), and a transmission shaft (44). The lever gear (41) is mounted on the feed device (3). The deceleration gear (42) is rotatably mounted on the base frame (1). The deceleration gear (42) is meshed with the lever gear (41). The deceleration gear (42) is provided with a meshing pinion (45). The transmission gear (43) is rotatably mounted on the base frame (1). The transmission gear (43) is meshed with the meshing pinion (45). The transmission shaft (44) is rotatably mounted on the base frame (1). One end of the transmission shaft (44) is connected to the transmission gear (43), and the other end of the transmission shaft (44) is connected to the transmission bevel gear (35).

6. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 5, characterized in that: The clamping and fixing rotation mechanism (2) includes a fixed moving body (46), a rotating shell (47), a clamping drive (48), a centering clamping member (49), and a rotating motor (50). The fixed moving body (46) is engaged and slidably disposed on the feeding device (3). The rotating shell (47) is rotatably disposed on the fixed moving body (46). The clamping drive (48) is disposed on the rotating shell (47). The centering clamping member (49) is engaged and slidably disposed on the rotating shell (47). The rotating motor (50) is disposed on the fixed moving body (46).

7. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 6, characterized in that: The clamping drive component (48) includes a drive disk (51), a drive wheel (52), and a clamping motor (53). The drive disk (51) is rotatably mounted in the rotating housing (47), and the drive wheel (52) is rotatably mounted on the rotating housing (47). The drive wheel (52) is meshed with the drive disk (51). The clamping motor (53) is mounted on the rotating housing (47), and the output end of the clamping motor (53) passes through the rotating housing (47) and is connected to the drive wheel. (52) Connected, the drive disk (51) is provided with a feed screw (54); the clamping drive (48) includes a meshing moving body (55) and a movable clamping member (56), the rotating shell (47) is provided with a moving groove (57), the meshing moving body (55) is engaged and slidably disposed in the moving groove (57), the bottom wall of the meshing moving body (55) is provided with a meshing pattern (58), and the meshing pattern (58) is meshed and connected with the feed screw (54).

8. The grinding apparatus for the outer diameter of a water pump rotor mandrel according to claim 7, characterized in that: The feeding device (3) includes a feeding screw (59), a feeding slide (60), and a feeding motor (61). The feeding screw (59) is rotatably mounted on the base frame (1), the feeding slide (60) is mounted on the base frame (1), the fixed moving body (46) is sleeved on the feeding screw (59) and the feeding slide (60), the feeding motor (61) is mounted on the base frame (1), the output end of the feeding motor (61) is connected to the feeding screw (59), and the lever gear (41) is mounted on the feeding screw (59).

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