A fan blade polishing device

Abstract

The application provides a fan blade polishing device and belongs to the technical field of polishing devices. The device comprises a base and a mechanical arm, the mechanical arm is fixedly installed on the base, the base is fixedly connected with second servo motors which are symmetrically distributed with the mechanical arm, the driving shaft top of the second servo motor is fixedly connected with a rotating plate, the rotating plate is symmetrically installed with first and second support frames, and the top of the first and second support frames is fixedly installed with first servo motors. The device is provided with a rotating plate, a large polishing wheel and a small polishing wheel. After the large polishing wheel efficiently completes the surface polishing work of the fan blade, the position of the large polishing wheel and the small polishing wheel is switched through the rotating plate, and the dead angle position is polished by the small polishing wheel. Thus, the polishing work of the entire fan blade is completed, the polishing efficiency of the fan blade is ensured, the detail precision is considered, and the polishing quality of the fan blade is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing devices, in particular to a fan blade polishing device. BACKGROUND

[0002] The blade of the axial flow fan is crucial to its aerodynamic performance and durability, and the surface finish of the blade directly affects the ventilation efficiency, noise, and fatigue resistance and corrosion resistance in harsh environments, so polishing is a key process. Although such blades are relatively small in size, they have complex profiles and severe bending and twisting, especially in the blade root and leading and trailing edge areas, where there are many polishing dead angles that are difficult to reach.

[0003] Currently, polishing operations in this field rely on manual or single-tool automated equipment. Manual polishing is not suitable for mass production and processing of blades, and has significant defects. Existing automated equipment is mostly used in conjunction with a mechanical arm to hold the blade and a polishing wheel to polish the blade. However, using a large polishing wheel is efficient but cannot handle dead angles, while using a small wheel significantly reduces efficiency and makes it difficult to balance processing efficiency and polishing detail accuracy. In addition, the debris generated by polishing splashes and accumulates outside the working area of the device, making the overall working environment of the device worse over time. Therefore, the present application provides a fan blade polishing device to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a fan blade polishing device to solve the problem that existing polishing devices cannot balance polishing efficiency, detail accuracy, and the cleaning needs of the working environment.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] A fan blade polishing device, comprising a base and a mechanical arm, the mechanical arm being fixedly installed on the base, the base being fixedly connected with second servo motors symmetrically distributed with the mechanical arm, the driving shaft top of the second servo motor being fixedly connected with a rotating plate, the rotating plate being symmetrically installed with first and second support frames, the top of the first and second support frames being fixedly installed with first servo motors, and the first and second support frames being respectively equipped with large and small polishing wheels, the rotating plate being fixedly installed with a collection cabin located directly below the large and small polishing wheels, the bottom of the collection cabin being provided with a chip removal assembly, and the bottom of the rotating plate being provided with a support assembly; the chip removal assembly is used for periodically discharging the accumulated debris in the collection cabin, and the chip removal assembly is connected with the collection cabin; the support assembly is used for assisting the end support of the rotating plate, and the support assembly is connected with the rotating plate.

[0007] Optionally, the driving shaft of the first servo motor on the first support frame is detachably fixedly connected with the large polishing wheel, and the driving shaft of the first servo motor on the second support frame is detachably fixedly connected with the small polishing wheel.

[0008] Optionally, the first support frame is obliquely arranged on the rotating plate, the second support frame is parallel to the first support frame, and the mechanical arm is located between the first support frame and the second support frame.

[0009] Optionally, the collecting cabin is parallel to the first support frame and the second support frame, and one end of the collecting cabin extends to the outside of the rotating plate and is provided with a third guide surface.

[0010] Optionally, the chip removal assembly comprises a discharge port arranged at a position corresponding to the bottom of the collecting cabin on the rotating plate, the collecting cabin is integrally formed with the rotating plate, and the bottom of the collecting cabin is provided with a first guide surface extending to the top end of the discharge port.

[0011] Optionally, a second guide surface is arranged on the outside of the bottom of the discharge port, the middle part of the rotating plate is provided with weakening grooves symmetrically arranged on both sides of the driving shaft connecting part of the second servo motor, the weakening grooves have a wave shape structure, and the thickness of the rotating plate at the weakening grooves is thinner.

[0012] Optionally, the support assembly comprises a lifting seat of a size suitable for the discharge port arranged on the bottom of the rotating plate, the outside of the lifting seat is fixedly connected with an eave plate, the bottom of the discharge port is sleeved with a ball bearing seat, and the eave plate and the bottom of the rotating plate are connected through a fixed pipe and a movable rod.

[0013] Optionally, the top end of the fixed pipe is fixedly connected with the bottom of the rotating plate, the bottom end of the movable rod is fixedly connected with the top of the second guide surface, and the movable rod is sleeved in the fixed pipe.

[0014] Optionally, the top of the movable rod is provided with a circular limiting disc, a cavity with a shape suitable for the limiting disc is arranged in the fixed pipe, and a spring is fixedly connected between the fixed pipe and the limiting disc.

[0015] Compared with the prior art, the present application has at least the following advantages:

[0016] In the above scheme, by arranging the rotating plate, the large polishing wheel and the small polishing wheel, after the large polishing wheel efficiently completes the surface polishing work of the fan blade, the position of the large polishing wheel and the small polishing wheel can be switched through the rotating plate, and then the small polishing wheel is used to polish the dead angle position, so that the polishing work of the entire fan blade is completed comprehensively, the polishing efficiency of the fan blade is ensured, the detail precision is considered, and the polishing quality of the fan blade is ensured.

[0017] By setting the collecting cabin and the chip removal assembly, the collecting cabin is used to collect the chips in the polishing process, and the lifting seat can be lowered when moving to the through opening, a gap is formed between the lifting seat and the discharge port after the lifting seat is lowered, the chips stored in the collecting cabin can leak through the gap and fall into the collecting container below through the through opening, which is convenient for subsequent centralized processing, thereby effectively avoiding the influence of the chips generated in the polishing process on the working environment of the device.

[0018] By setting the weakening groove on the rotating plate, when the lifting seat moves to the position of the through opening and the chips are discharged, the vibration generated by the first servo motor in the working area is conducted through the rotating plate and the weakening groove. Through the wavy and easily deformable structure of the weakening groove, the vibration is conducted to the lifting seat and the collecting cabin in the waiting area, so that the collecting cabin can be affected by the vibration when discharging the chips in the waiting area, thereby improving the chip removal effect.

[0019] By setting the supporting assembly, in addition to being able to cooperate with the lifting seat to close the discharge port, it can also cooperate with the ball bearing seat to support the bottom of the rotating plate, which can not only ensure the end support effect of the lifting seat, but also can not produce too much resistance in the rotating switching process of the rotating plate through the rolling of the ball bearing seat when the rotating plate is deflected, so that the rotating switching process of the rotating plate is more smooth, and the vibration of the first servo motor when working does not affect the polishing precision of the fan blade. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0021] Figure 1 is a first perspective view of a fan blade polishing device;

[0022] Figure 2 is a second perspective view of a fan blade polishing device;

[0023] Figure 3 is a schematic view of the cooperation structure of the rotating plate, the second servo motor and the lifting seat;

[0024] Figure 4 is a schematic view of the base structure;

[0025] Figure 5 is a schematic view of the rotating plate from the top;

[0026] Figure 6 is a schematic view of the cooperation structure of the rotating plate, the collecting cabin and the lifting seat in the first state;

[0027] Figure 7Figure 6 is a schematic view of a structure for the rotating plate, the collecting cabin and the lifting seat in a second state of cooperation;

[0028] Figure 8 Figure 7 is a schematic view of a structure for the fixed tube in a partial section.

[0029] Reference signs:

[0030] 1, base; 2, mechanical arm; 3, rotating plate; 4, first support frame; 5, second support frame; 6, first servo motor; 7, large polishing wheel; 8, small polishing wheel; 9, collecting cabin; 10, weakening groove; 11, second servo motor; 12, through opening; 13, lifting seat; 14, discharge port; 15, first guide surface; 16, eave plate; 17, second guide surface; 18, ball bearing seat; 19, fixed tube; 20, third guide surface; 21, movable rod; 22, spring.

[0031] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0032] A fan blade polishing device provided by the present application is described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement them; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0033] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include a specific feature, structure or property, but not necessarily every embodiment includes the specific feature, structure or property. In addition, when a specific feature, structure or property is described in combination with an embodiment, it should be within the knowledge of those skilled in the art to realize this feature, structure or property in combination with other embodiments (whether or not explicitly described).

[0034] Generally, the terms can be understood at least in part from the context in which they are used. For example, depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics, in the plural, without necessarily dictating whether the feature, structure, or characteristic is only one or more than one. In addition, the term "based on" can be understood as not necessarily a set of exclusive factors, but can instead, depending on the context, allow for the existence of other factors not explicitly described. Thus, the present application is not limited to the above-described embodiments, but can be modified and changed in various ways.

[0035] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0036] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0037] like Figures 1 to 3 As shown, an embodiment of the present invention provides a wind turbine blade polishing device, including a base 1 and a robotic arm 2. The bottom of the robotic arm 2 is fixedly installed above the base 1. A second servo motor 11 is fixedly connected to the base 1 and is symmetrically distributed with the robotic arm 2. A rotating plate 3 is fixedly connected to the top of the drive shaft of the second servo motor 11. A first support frame 4 and a second support frame 5 are symmetrically installed on the rotating plate 3. A first servo motor 6 is fixedly installed at the top of both the first support frame 4 and the second support frame 5. A large polishing wheel 7 is fixedly connected to the outside of the drive shaft of the first servo motor 6 on the first support frame 4. A small polishing wheel 8 is fixedly connected to the outside of the drive shaft of the first servo motor 6 on the second support frame 5. The first support frame 4 is inclined on the rotating plate 3. Specifically, there is an angle between the first support frame 4 and the short side of the rotating plate 3, so that the first support frame 4 is in an inclined state on the rotating plate 3. The second support frame 5 is parallel to the first support frame 4. The robotic arm 2 is positioned between the first support frame 4 and the second support frame 5.

[0038] When polishing the blade, the mechanical arm 2 can clamp the fan blade to be processed through the clamping part thereof, and place the blade close to the working area position of the large polishing wheel 7. Due to the inclination of the first support frame 4, the large polishing wheel 7 is also in an inclined state, the surface area thereof facing the position of the mechanical arm 2 is larger, the area capable of contacting the fan blade is also larger, and it is more convenient for the mechanical arm 2 to clamp the fan blade to perform polishing processing. When the large polishing wheel 7 is in the polishing position, the first servo motor 6 on the first support frame 4 works to drive the large polishing wheel 7 to rotate at a high speed, and the main surface of the fan blade is polished. After the large polishing wheel 7 completes the work, the second servo motor 11 is started to drive the whole rotating plate 3 to rotate through the driving shaft thereof, and the positions of the first support frame 4 and the second support frame 5 are switched. Since the second support frame 5 is parallel to the first support frame 4, after the second support frame 5 is switched to the polishing position, the small polishing wheel 8 is also in the same inclined state as that of the large polishing wheel 7. After the switching is completed, the first servo motor 6 on the first support frame 4 stops working, and the first servo motor 6 on the second support frame 5 is started to drive the small polishing wheel 8 to rotate at a high speed. The mechanical arm 2 clamps the fan blade to polish the dead angle position by means of the small polishing wheel 8, so as to comprehensively complete the polishing work of the whole fan blade, which not only ensures the polishing efficiency of the fan blade, but also takes into account the detail precision, and ensures the polishing quality of the fan blade. The principle and use mode of the above-mentioned mechanical arm 2 are the same as those of the prior art, and will not be described in detail here.

[0039] In the embodiment, as shown in Figures 3 to 8 The collecting cabin 9 is fixedly installed on the rotating plate 3 and located below the large polishing wheel 7 and the small polishing wheel 8. The collecting cabin 9 is parallel to the first support frame 4 and the second support frame 5, and one end of the collecting cabin 9 extends to the outside of the rotating plate 3 and is provided with a third guide surface 20. When the large polishing wheel 7 or the small polishing wheel 8 is in the polishing position, the third guide surface 20 on the collecting cabin 9 corresponding to the large polishing wheel 7 or the small polishing wheel 8 faces the polishing position of the large polishing wheel 7 or the small polishing wheel 8, so that the opening below the polishing position of the large polishing wheel 7 or the small polishing wheel 8 is larger, and the collecting cabin 9 can better collect the debris generated by the large polishing wheel 7 and the small polishing wheel 8 during polishing, thereby avoiding the debris generated during polishing from scattering on the base 1 in a large amount and affecting the working environment of the device. The collecting cabin 9 is integrally formed with the rotating plate 3. The rotating plate 3 is provided with a discharge port 14 corresponding to the bottom of the collecting cabin 9. The bottom of the collecting cabin 9 is provided with a first guide surface 15 extending to the top end of the discharge port 14. The bottom of the rotating plate 3 is provided with a lifting seat 13 matched with the size of the discharge port 14. The outer side of the lifting seat 13 is fixedly connected with an eave plate 16. The bottom of the discharge port 14 is provided with a ball bearing seat 18. The eave plate 16 and the bottom of the rotating plate 3 are connected through a fixed pipe 19 and a movable rod 21.

[0040] Specifically, the top end of the fixed tube 19 is fixedly connected with the bottom of the rotating plate 3, the bottom end of the movable rod 21 is fixedly connected with the top of the second guide surface 17, and the movable rod 21 is sleeved in the fixed tube 19, the top of the movable rod 21 is provided with a circular limiting disc, a cavity with a shape matched with the limiting disc is formed in the fixed tube 19, and a spring 22 is fixedly connected between the fixed tube 19 and the limiting disc. By means of the fixed tube 19, the movable rod 21 and the limiting disc, the relative displacement between the lifting seat 13 and the rotating plate 3 can occur, but the displacement amount is limited by the limiting disc. When the large polishing wheel 7 or the small polishing wheel 8 is in the working position, the corresponding collecting cabin 9 is used to collect the polishing debris, at this time, the bottom of the ball bearing seat 18 is attached to the upper surface of the base 1 and is limited by the extrusion of the upper surface of the base 1, so that the movable rod 21 is in a state of being completely retracted into the fixed tube 19, the spring 22 is compressed and accumulates elastic potential energy, at this time, the lifting seat 13 and the discharge port 14 are in the first matching state, the top end of the lifting seat 13 is inserted into the discharge port 14, the discharge port 14 is closed, so that the bottom end of the collecting cabin 9 is also in a closed state, so that the collecting cabin 9 can effectively store the polishing debris. A through opening 12 is formed in the upper surface of the base 1 and located on one side of the second servo motor 11, the position of the through opening 12 corresponds to the waiting area on the base 1 and is symmetrical to the position of the polishing processing area, that is, when the first support frame 4 and the large polishing wheel 7 are in the polishing working area, the second support frame 5 and the small polishing wheel 8 are in the waiting area, when the collecting cabin 9 moves to the waiting area, the lifting seat 13 moves to the position corresponding to the through opening 12, at this time, the bottom of the ball bearing seat 18 is no longer limited by the extrusion of the upper surface of the base 1, the elastic potential energy accumulated by the spring 22 is released, combined with the gravity of the lifting seat 13 itself, the lifting seat 13 is lowered when moving to the through opening 12, after the lifting seat 13 is lowered, the top end of the lifting seat 13 moves below the bottom of the rotating plate 3, a gap is formed between the lifting seat 13 and the discharge port 14, the polishing debris stored in the collecting cabin 9 can fall through the gap, the edge of the roof plate 16 is provided with an inclined downward slope, which is used for guiding the falling debris to the through opening 12 and passing through the through opening 12 to wait for subsequent centralized processing, the bottom of the base 1 is provided with a supporting leg, so that there is a certain space at the bottom of the area where the through opening 12 is formed in the base 1, a container for collecting the polishing debris can be placed below the through opening 12, which facilitates the subsequent centralized processing.

[0041] In the embodiment, as Figures 4 to 8As shown, the bottom outer side of the discharge port 14 is provided with a second guide surface 17, and the middle of the rotating plate 3 is provided with a weakening groove 10 symmetrically distributed on both sides of the driving shaft connection of the second servo motor 11, the weakening groove 10 is in a wave shape structure, and the thickness value of the rotating plate 3 at the weakening groove 10 is thinner and weaker, and is more prone to deformation after being subjected to external force. Therefore, after the lifting seat 13 moves to the position of the through opening 12, the other side of the working area is also in a working state when the debris is discharged, and the vibration generated by the first servo motor 6 in the working state is conducted through the rotating plate 3 and the weakening groove 10, and the vibration is conducted to the lifting seat 13 and the collection cabin 9 in the waiting area through the wave-shaped deformation structure of the weakening groove 10, so that the collection cabin 9 can be affected by the vibration when discharging the debris in the waiting area, and the debris discharge effect is improved.

[0042] When the lifting seat 13 and the discharge port 14 are in the second state cooperation, the position of the second guide surface 17 corresponds to the position of the through opening 12, and the setting of the second guide surface 17 forms an inclined surface at the bottom end of the lifting seat 13. When the lifting seat 13 shifts from the waiting area to the working area, the inclined surface formed by the second guide surface 17 contacts the edge position of the through opening 12, and then generates extrusion force on the lifting seat 13. The inclined surface formed by the second guide surface 17 can decompose the extrusion force on the lifting seat 13, and then generates upward extrusion force on the lifting seat 13, so that the lifting seat 13 can rise again when it is about to leave the area where the through opening 12 is located. Then, the cooperation state between the lifting seat 13 and the discharge port 14 can be converted following the deflection movement of the rotating plate 3. The positional relationship between the lifting seat 13 and the discharge port 14 is in the first cooperation state in other areas on the base 1 except at the through opening 12. In this state, the position of the lifting seat 13 can not only close the discharge port 14, but also support the bottom of the rotating plate 3 in cooperation with the ball bearing seat 18. It can not only ensure the end support effect of the lifting seat 13 to avoid the vibration of the entire rotating plate 3 and the first support frame 4 in the working position when the first servo motor 6 works, which affects the polishing precision of the fan blade, but also make the rotating plate 3 be effectively supported and not generate too much resistance during rotation by the rolling of the ball bearing seat 18 when the rotating plate 3 deflects, so that the rotating plate 3 rotates more smoothly.

[0043] The present application covers any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0044] The above description is only the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A fan blade polishing apparatus comprising a base and a mechanical arm fixedly installed on the base, characterized in that, The base is fixedly connected with second servo motors symmetrically distributed with the mechanical arm, the driving shaft top of the second servo motor is fixedly connected with a rotating plate, the rotating plate is symmetrically installed with a first support frame and a second support frame, the top of the first support frame and the second support frame are fixedly installed with a first servo motor, and the first support frame and the second support frame are respectively assembled with a large polishing wheel and a small polishing wheel, the rotating plate is fixedly installed with a collecting cabin located directly below the large polishing wheel and the small polishing wheel, the bottom of the collecting cabin is provided with a chip removal assembly, and the bottom of the rotating plate is provided with a supporting assembly. The chip removal assembly is used for periodically discharging the accumulated chips in the collecting cabin, and the chip removal assembly is connected with the collecting cabin. The supporting assembly is used for assisting the end support of the rotating plate, and the supporting assembly is connected with the rotating plate. The chip removal assembly comprises a discharge port formed in a position corresponding to the bottom of the collecting cabin on the rotating plate, the collecting cabin and the rotating plate are integrally formed, and the bottom of the collecting cabin is provided with a first guide surface extending to the top end of the discharge port. A second guide surface is formed on the outside of the bottom of the discharge port, and a weakening groove is formed in the middle of the rotating plate and symmetrically distributed on both sides of the driving shaft connection of the second servo motor, the weakening groove is in a wave shape structure, and the thickness value of the rotating plate at the weakening groove is thinner. The supporting assembly comprises a lifting seat with the same size as the discharge port, which is sleeved on the bottom of the rotating plate, a eave plate is fixedly connected to the outside of the lifting seat, and a ball bearing seat is sleeved on the bottom of the discharge port, the eave plate and the bottom of the rotating plate are connected through a fixed tube and a movable rod. The top end of the fixed tube is fixedly connected with the bottom of the rotating plate, the bottom end of the movable rod is fixedly connected with the top of the second guide surface, and the movable rod is sleeved in the fixed tube. A circular limiting disc is arranged on the top of the movable rod, a cavity with the same shape as the limiting disc is formed in the fixed tube, and a spring is fixedly connected between the fixed tube and the limiting disc.

2. The fan blade polishing apparatus of claim 1, wherein, The driving shaft of the first servo motor on the first support frame is detachably fixedly connected with the large polishing wheel, and the driving shaft of the first servo motor on the second support frame is detachably fixedly connected with the small polishing wheel.

3. The fan blade polishing apparatus of claim 1, wherein, The first support frame is obliquely arranged on the rotating plate, the second support frame is parallel to the first support frame, and the mechanical arm is located between the first support frame and the second support frame.

4. The fan blade polishing apparatus of claim 1, wherein, The collecting cabin is parallel to the first support frame and the second support frame, and one end of the collecting cabin extends to the outside of the rotating plate and is provided with a third guide surface.

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