Fan impeller polishing device with adjustable shock-proof clamping structure

Abstract

The invention discloses a fan impeller polishing device with an adjustable shockproof clamping structure, which relates to the technical field of fan impeller polishing. A flexible polishing method is adopted for the structural shape of the fan impeller, and a polishing sheet is applied based on a rubber ball head. The elastic effect of the rubber ball head itself is used to adapt to the "stress" change during the polishing process. Based on this, a plurality of cooperative arc rods are added with a rotating shaft as the main body. The essence of the device is that when the rubber ball head is directional moved along the fan impeller structural shape, an adaptive free angle switching action can be formed. The active angle of each cooperative arc rod is only related to the fan impeller structural shape, and the angle switching action of two cooperative arc plates in adjacent positions is used to drive the slider in the cooperative cylinder to move in a directional and quantitative manner to adapt to the "stress" change. In the clamping process, an empty support method is adopted, which relies on the adaptive support and shock reduction method formed by the rubber support.

Description

Technical Field

[0001] The invention relates to the technical field of fan impeller polishing, and in particular to a fan impeller polishing device with an adjustable shockproof clamping structure. Background Art

[0002] The materials used to make wind turbine blades include two major categories: metal and resin fiber. The production process mainly includes two processes: rough processing and fine processing. The fine processing process includes steps such as structural reinforcement, punching, polishing and painting. For the polishing step, its essence is to use structures such as polishing sheets to reduce surface roughness.

[0003] Most fan blades are streamlined structures. Their structural shape is one of the key factors affecting the operating efficiency of the fan, and the polishing process of fan blades is mainly based on automated equipment. In theory, the polishing process only has a small effect on the product size. However, combined with the polishing process of fan blades, because the fan blades are thin, and the polishing sheet needs to maintain continuous contact with the fan blades, the polishing sheet and other structures will vibrate when they rotate continuously. Therefore, there are the following problems in actual situations: due to differences in local vibrations and the "stress" when the polishing sheet contacts the surface of the fan blade during operation, the "stress" is affected by the differences in its structural shape, resulting in bending and deformation problems in local positions of the fan blades. Specifically, when the fan blades continue to rotate, bending and deformation problems are "magnified", resulting in differences in wind force and high operating noise. Summary of the invention

[0004] The purpose of the present invention is to provide a fan impeller polishing device with an adjustable shockproof clamping structure. For the polishing step of the graded blades, due to their thick wall thickness and streamlined structural appearance, vibration differences and "stress" differences are generated at local polishing positions during the specific polishing process, resulting in bending and deformation of local positions of the fan blades, which directly affects the subsequent use effect.

[0005] The objective of the present invention can be achieved by the following technical solution: a fan impeller polishing device with an adjustable shockproof clamping structure comprises a workbench, a first drive assembly and a second drive assembly, an upper pressing platform corresponding to the second drive assembly is arranged directly above the workbench, and an impeller body is arranged between the workbench and the upper pressing platform;

[0006] An empty support corresponding to the impeller body is installed on the workbench, and a working component corresponding to the first drive assembly is arranged on one of the empty supports, and the working component includes a swivel, a mounting plate, a cooperative arc rod, a mounting column and a cooperative cylinder. The center point of the swivel and the center point of the mounting plate are on the same vertical axis, the cooperative arc rod is arranged at four o'clock positions of the mounting plate, the cooperative cylinder is installed on the mounting plate in the vertical direction, and the cooperative cylinder is located in the middle position of the cooperative arc rods at every two adjacent positions, the lower end of the swivel is lower than the mounting plate, and a rubber ball head is installed at the lower end of the swivel.

[0007] It is further configured as follows: a notch corresponding to the working component is opened on the upper pressing platform, the upper end of the empty supporting platform is open, and a plurality of bottom supporting columns are installed at positions inside the working platform corresponding to the empty supporting platform.

[0008] It is further configured as follows: the height of the bottom support column is lower than the lower curved surface of the impeller body, and a rubber support is slidably installed in the bottom support column along the vertical direction, the upper surface of the rubber support matches the lower curved surface of the impeller body, and a third spring is installed at the lower end of the rubber support, and the bottom end of the third spring is installed at the bottom end position of the inner wall of the bottom support column.

[0009] It is further configured as follows: a directional column is slidably installed at the lower end of the mounting column, and a second spring is arranged between the mounting column and the directional column, the swivel is slidably connected with the mounting column and the directional column, the interior of the swivel is connected with the interior of the rubber ball head, and an air port is arranged at the top end of the swivel, and a polishing sheet is arranged at the lower end of the rubber ball head.

[0010] It is further configured as follows: a ball head is provided at the intersection of the directional column and the cooperative arc rod corresponding to the mounting plate, and the directional column and the cooperative arc rod are movably connected to the mounting plate through the ball head.

[0011] It is further configured as follows: the cooperative arc rod is in an arc shape that bends outwards in a direction away from the rubber ball head, and a ball is arranged at the bottom end of the cooperative arc rod.

[0012] It is further configured as follows: a slider is slidably installed inside the cooperative cylinder along the vertical direction, and first springs are installed at both upper and lower sides of the slider, and the first springs at the upper and lower sides are respectively installed at the top and bottom ends of the inner wall of the cooperative cylinder.

[0013] It is further configured as follows: a connecting cable is installed at the top position of the cooperative arc rods at every two adjacent positions, the connecting cable passes through the sliders in the cooperative arc rods at two adjacent positions, and a through groove corresponding to the connecting cable is opened on the cooperative cylinder.

[0014] The present invention has the following beneficial effects:

[0015] The overall structure adopts an empty support method for the structural shape of the fan impeller. It forms an "incomplete" support method for the fan impeller in the polishing action based on the empty support platform, and relies on multiple bottom support columns to support the fan impeller at multiple points. When the working component performs the polishing action, when the rubber support supports the fan impeller, the vibration generated by the local position of the fan impeller can be indirectly transmitted to the rubber support, avoiding the influence of the local vibration on the polishing effect of the fan impeller;

[0016] Furthermore, a flexible polishing method is adopted for the structural shape of the fan impeller. Its essence is to utilize the elastic effect of the rubber ball head itself. When a structure such as a polishing sheet is attached thereon, the polishing sheet can be better attached to a single point local position on the fan impeller, and the rubber ball head can be inflated and deflated with the rotating shaft as the main body to maintain the polishing position, and the movement process of the working component is utilized to make the mounting plate and the cooperative arc plate move in a directional manner. The directional movement includes vertical movement and angle switching action. When the rubber ball head moves in a directional manner along the structural shape of the fan impeller, an adaptive free angle switching action can be formed. The activity angle of each cooperative arc rod is only related to the structural shape of the fan impeller, and the angle switching action of the two cooperative arc plates in adjacent positions is utilized to drive the slider in the cooperative cylinder to move in a directional and quantitative manner to adapt to the "stress" change. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention;

[0019] Figure 2 The fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention Figure 1 Split diagram of ;

[0020] Figure 3 A schematic diagram of the structure of the working components in the fan impeller polishing device with an adjustable anti-vibration clamping structure proposed by the present invention;

[0021] Figure 4 The fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention Figure 3 Split diagram of ;

[0022] Figure 5A cross-sectional view of a directional plate corresponding to a cooperating cylinder in a fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention;

[0023] Figure 6 A cross-sectional view of the directional plate corresponding to the directional column in the fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention;

[0024] Figure 7 It is a cross-sectional view of the bottom supporting column corresponding to the hollow supporting platform of the fan impeller polishing device with an adjustable shockproof clamping structure proposed by the present invention.

[0025] In the figure: 1. workbench; 2. empty support platform; 3. first drive assembly; 4. second drive assembly; 5. upper pressure platform; 6. air port position; 7. swivel; 8. mounting column; 9. rubber ball head; 10. bottom support column; 11. mounting plate; 12. cooperative cylinder; 13. cooperative arc rod; 14. directional column; 15. connecting cable; 16. through groove; 17. first spring; 18. slider; 19. second spring; 20. rubber support; 21. third spring. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: The traditional polishing process easily causes obvious vibration in the local part of the product. For structures such as fan blades, due to the difference in local vibration, the "stress" when the polishing sheet contacts the surface of the fan blade during operation is affected by the difference in its structural shape, resulting in bending and deformation in the local part of the fan blade. The essence of this is to affect the structural shape of the fan blade, thereby directly affecting the subsequent use effect of the fan blade, such as unstable operation, high operating noise, wind force difference, etc. The following technical solutions are proposed for this:

[0028] Reference Figures 1 to 7 The fan impeller polishing device with an adjustable shockproof clamping structure in this embodiment includes a workbench 1, a first drive assembly 3 and a second drive assembly 4. An upper pressing platform 5 corresponding to the second drive assembly 4 is arranged directly above the workbench 1, and an impeller body is arranged between the workbench 1 and the upper pressing platform 5;

[0029] An empty support 2 corresponding to the impeller body is installed on the workbench 1, and a working component corresponding to the first drive assembly 3 is arranged on one of the empty supports 2, and the working component includes a swivel shaft 7, a mounting plate 11, a cooperative arc rod 13, a mounting column 8 and a cooperative cylinder 12. The center point of the swivel shaft 7 and the center point of the mounting plate 11 are on the same vertical axis, the cooperative arc rod 13 is arranged at four o'clock positions of the mounting plate 11, the cooperative cylinder 12 is installed on the mounting plate 11 in the vertical direction, and the cooperative cylinder 12 is located in the middle position of the cooperative arc rod 13 at every two adjacent positions, the lower end position of the swivel shaft 7 is lower than the mounting plate 11, and a rubber ball head 9 is installed at the lower end position of the swivel shaft 7.

[0030] The upper press table 5 is provided with a notch corresponding to the working components, the upper end of the empty support table 2 is open, and a plurality of bottom support columns 10 are installed at positions corresponding to the empty support table 2 inside the workbench 1;

[0031] A directional column 14 is slidably installed at the lower end of the mounting column 8, and a second spring 19 is arranged between the mounting column 8 and the directional column 14. The swivel 7 is slidably connected with the mounting column 8 and the directional column 14. The interior of the swivel 7 is connected with the interior of the rubber ball head 9, and an air port position 6 is arranged at the top of the swivel 7, and a polishing sheet is arranged at the lower end of the rubber ball head 9.

[0032] Working principle: First refer to Figure 1 and Figure 2 , wherein the workbench 1 serves as a fixed base of the impeller body, and the upper pressing table 5 serves as a press-fitting structure at the upper side of the impeller body, but a gap is reserved for the relative position of the working component when performing the polishing action, and the second driving assembly 4 and the first driving assembly 3 are mainly power structures, the first driving assembly 3 is used to drive the working component to move in multiple directions, and its essence belongs to the structure of linear motor, and the second driving assembly 4 is used to drive the upper pressing table 5 to move in the up and down directions, and its essence belongs to the structure of telescopic cylinder;

[0033] The polishing action is explained as follows: since the structural surfaces of the impeller body are mostly streamlined, a flexible polishing method is adopted in this embodiment, specifically, a polishing sheet or the like is attached to the lower end of the rubber ball head 9, so that when the first drive assembly 3 drives the entire working component to move, the rubber ball head 9 is attached to the impeller surface "as much as possible", and the rubber ball head 9 can be deformed in a direction along with the impeller surface structure to achieve the purpose of fitting the impeller surface.

[0034] Embodiment 2: This embodiment explains the support process at the lower side of the impeller body:

[0035] The height of the bottom support column 10 is lower than the lower curved surface of the impeller body, and a rubber support 20 is slidably installed in the bottom support column 10 along the vertical direction. The upper surface of the rubber support 20 matches the lower curved surface of the impeller body, and a third spring 21 is installed at the lower end of the rubber support 20. The bottom end of the third spring 21 is installed at the bottom end position of the inner wall of the bottom support column 10.

[0036] Solution description: Follow the relevant content in Example 1 and refer to Figure 2 and Figure 7 The impeller body is supported by an empty support platform 2, but only at the edge of the impeller contour, and the actual support structure is composed of a plurality of bottom support columns 10. During the polishing process, when the rubber ball head 9 moves to a single point position of the impeller body, the bottom support column 10 at the corresponding position is responsible for the support function of the position. The setting method and size parameters of the bottom support column 10 in the present invention are not limited because the structure of the impeller body is relatively complex;

[0037] The key point to be explained is: because the rubber ball head 9 is located on the upper side of the impeller body, and then the bottom support column 10 supports the impeller body from the lower side, but the supporting structure is only the rubber support 20. It can be understood that: after the impeller body is placed on the workbench 1 and fixed by the upper pressing table 5, in theory, it is supported by multiple rubber supports 20 together, but when the rubber ball head 9 contacts the surface of the impeller and performs polishing, a vibration is generated at the corresponding position of the impeller surface, and then the rubber support 20 in the corresponding position is mainly used to withstand the generated vibration, and the third spring 21 in this position can perform the two processes of "absorption" and "release", thereby playing a shock reduction role.

[0038] Embodiment 3: This embodiment is a supplementary explanation of the polishing process in Embodiment 1:

[0039] Ball heads are provided at the intersection positions of the directional column 14 and the cooperative arc rod 13 corresponding to the mounting plate 11, and the directional column 14 and the cooperative arc rod 13 are movably connected to the mounting plate 11 through the ball heads. The cooperative arc rod 13 is in an arc shape bending outward in the direction away from the rubber ball head 9, and a ball bearing is provided at the bottom end of the cooperative arc rod 13. A slider 18 is slidably installed in the cooperative cylinder 12 along the vertical direction. First springs 17 are installed at the upper and lower sides of the slider 18. The first springs 17 at the upper and lower sides are respectively installed at the top and bottom ends of the inner wall of the cooperative cylinder 12. A connecting cable 15 is installed at the top of every two adjacent cooperative arc rods 13. The connecting cable 15 passes through the sliders 18 in the two adjacent cooperative arc rods 13, and a through groove 16 corresponding to the connecting cable 15 is opened on the cooperative cylinder 12.

[0040] According to the above content, set the following action process:

[0041] S1: Reference Figure 6First, it should be noted that: in the initial state, the mounting column 8 and the directional column 14 maintain their initial positions under the elastic action of the second spring 19 itself, and it should also be noted that: the mounting column 8 is relatively fixedly installed relative to the first drive assembly 3, and the rotary shaft 7 rotates at a constant speed through the first drive assembly 3, and then it can be understood that: under the influence of the second spring 19, the overall mounting plate 11 moves downward under the action of the directional column 14, so that the ball in the cooperative arc rod 13 remains lower than the rubber ball head 9, so that the overall working component moves downward in the first drive assembly 3 and contacts the impeller body. In this process, the ball has priority over the rubber ball head 9 and contacts the impeller surface;

[0042] S2: It is explained again that the surface of the impeller body structure is mostly streamlined, so after the cooperative arc rod 13 contacts the impeller body, the mounting plate 11 is first moved up with the directional column 14 to ensure that the rubber ball head 9 contacts the impeller surface. However, in this process, four of the cooperative arc rods 13 perform non-directional angle deflection with the impeller body surface, so that Figure 6 For example, the cooperative arc rod 13 at the left side of the figure is deflected clockwise at the center point of its ball head;

[0043] However, it should be noted that: when moving downward synchronously, it is difficult to ensure that the balls on the four cooperating arc rods 13 contact the surface of the impeller body at the same time. If one or more of the balls do not contact the surface of the impeller body, the mounting plate 11 will synchronously perform non-directional angle deflection action with the center point of the ball head on the directional column 14 as the fulcrum, and the impeller body will be moved downward synchronously. Figure 6 For example, if a ball on a cooperative arc rod 13 at the left position in the figure contacts the surface of the impeller body, then the overall mounting plate 11 will deflect in the opposite direction of the ball until it is ensured that the balls on the four cooperative arc rods 13 all contact the surface of the impeller body. The deflection direction and deflection angle of each cooperative arc rod 13 are only related to the structural shape of the impeller body and the downward movement distance of the working component. Especially when the polishing action is performed, the overall working component needs to be directional moved along the impeller surface, so the deflection direction and deflection angle are not limited in this embodiment;

[0044] S3: As shown in S2, and with reference to Figure 5 When the cooperating arc rod 13 in the corresponding two positions moves in a directional manner, the upper end of the cooperating arc rod 13 rotates clockwise or counterclockwise at the center point of its ball head, and then rotates again at Figure 5Taking the cooperative arc rod 13 at the left position in the middle as an example, when it rotates clockwise, the length of the connecting cable 15 at this position will "become shorter", and for this purpose, it is necessary to further limit the elasticity of the first springs 17 on the upper and lower sides of the slider 18, which can be expressed as follows: the first spring 17 at the lower position is in a compressed state to provide an upward thrust to the slider 18, and the first spring 17 at the upper position is also in a compressed state or a natural state, and then provides a downward pressure to the slider 18. The thrust and pressure are maintained in balance with each other through the cooperative arc rods 13 at two corresponding positions. However, when one of the cooperative arc rods 13 deflects at an undirected angle, the balance between the thrust and pressure is directly broken, and the slider 18 moves upward. On the basis of maintaining the length of the connecting cable 15 unchanged, the angle of the connecting cable 15 is changed only by the change in the position of the slider 18, so that when the overall working component moves, each cooperative arc rod 13 deflects freely, but is ultimately borne by the cooperative cylinder 12 at the corresponding position.

[0045] S4: As shown in S3, and refer to Figure 4 For explanation, each cooperative arc rod 13 is provided with two sets of connecting cables 15, which respectively correspond to the cooperative cylinders 12 in two directions. The integration into the overall polishing process can be understood as follows: when the overall working assembly moves in coordination with the polishing action, although each cooperative arc rod 13 performs an independent angular deflection action, they will eventually be concentrated in the cooperative cylinder 12 at the corresponding position, and specifically, the thrust / pressure difference generated by the two first springs 17 during the movement of the slider 18 is utilized to "concentrate" the vibration sense that may be generated during the polishing process and the moving process into the cooperative cylinder 12, and the two first springs 17 are used to "consume" the possible vibration sense.

[0046] To sum up: a flexible polishing method is adopted for the structural shape of the fan impeller, which is a structure such as a polishing sheet attached to a rubber ball head as the basis, and the elastic effect of the rubber ball head itself is used to adapt to the "stress" changes during the polishing process. On this basis, a plurality of cooperative arc rods are added with the rotating shaft as the main body. Its essence lies in: when the rubber ball head is directed along the structural shape of the fan impeller, an adaptive free angle switching action can be formed. The activity angle of each cooperative arc rod is only related to the structural shape of the fan impeller, and the angle switching action of the two cooperative arc plates in adjacent positions is used to drive the slider in the cooperative cylinder to move in a directional and quantitative manner to adapt to the "stress" changes, and an empty support method is adopted during the clamping process, relying on the adaptive support and shock reduction method formed by the rubber support.

[0047] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fan impeller polishing device with an adjustable shockproof clamping structure, comprising a workbench (1), a first drive assembly (3) and a second drive assembly (4), characterized in that: An upper pressing platform (5) corresponding to the second driving assembly (4) is arranged directly above the workbench (1), and an impeller body is arranged between the workbench (1) and the upper pressing platform (5); An empty support (2) corresponding to the impeller body is mounted on the workbench (1), and a working component corresponding to the first drive assembly (3) is arranged on one of the empty support (2), the working component comprising a rotating shaft (7), a mounting plate (11), an assisted arc rod (13), a mounting column (8) and an assisted cylinder (12), the center point of the rotating shaft (7) and the center point of the mounting plate (11) are located on the same vertical axis, the assisted arc rod (13) is arranged at four points on the mounting plate (11), and the working component comprises ...) and an assisted cylinder (12), the center point of the rotating shaft (7) and the center point of the mounting plate (11) are located on the same vertical axis, and the assisted arc rod (13) is arranged at four points on the mounting plate (11). The cooperative cylinder (12) is mounted on the mounting plate (11) in the vertical direction, and the cooperative cylinder (12) is located at the middle position of every two adjacent cooperative arc rods (13); the lower end position of the rotating shaft (7) is lower than the mounting plate (11), and a rubber ball head (9) is mounted on the lower end position of the rotating shaft (7); a polishing sheet is attached to the lower end position of the rubber ball head (9); when the working component is driven to move by the first driving assembly (3), the polishing sheet on the rubber ball head (9) is attached to the surface position of the impeller; The upper pressing platform (5) is provided with a notch corresponding to the working component, the upper end of the empty support platform (2) is open, and a plurality of bottom support columns (10) are installed at a position corresponding to the empty support platform (2) inside the working platform (1), the height of the bottom support columns (10) is lower than the lower curved surface of the impeller body, and a rubber support (20) is installed in the bottom support column (10) in a vertical sliding manner, the upper surface of the rubber support (20) matches the lower curved surface of the impeller body, and a third spring (21) is installed at the lower end of the rubber support (20), and the bottom end of the third spring (21) is installed at the bottom end position of the inner wall of the bottom support column (10). A directional column (14) is slidably mounted on the lower end of the mounting column (8), and a second spring (19) is arranged between the mounting column (8) and the directional column (14); the swivel (7) is slidably connected to the mounting column (8) and the directional column (14); the interior of the swivel (7) is connected to the interior of the rubber ball head (9), and an air port (6) is arranged at the top of the swivel (7); ball heads are arranged at the intersection positions of the directional column (14) and the cooperating arc rod (13) corresponding to the mounting plate (11), and the directional column (14) and the cooperating arc rod (13) are movably connected to the mounting plate (11) through the ball heads; A slider (18) is slidably mounted inside the cooperative cylinder (12) in a vertical direction. First springs (17) are mounted at upper and lower sides of the slider (18). The first springs (17) at the upper and lower sides are mounted at the top and bottom ends of the inner wall of the cooperative cylinder (12) respectively. A connecting cable (15) is mounted at the top ends of the cooperative arc rods (13) at every two adjacent positions. The connecting cable (15) passes through the sliders (18) in the cooperative arc rods (13) at two adjacent positions. A through groove (16) corresponding to the connecting cable (15) is provided on the cooperative cylinder (12).

2. The fan impeller polishing device with an adjustable shockproof clamping structure according to claim 1 is characterized in that: The cooperative arc rod (13) is in an arc shape that bends outwards in a direction away from the rubber ball head (9), and a ball is arranged at the bottom end of the cooperative arc rod (13).

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