A flipping and clamping device for end face machining of embedded bolts for wind turbine blades

Abstract

The present invention provides a turning and clamping device for machining the end face of a pre-embedded bolt wind turbine blade, comprising a turning assembly and a clamping assembly; the turning assembly includes a turning cylinder and a support block; the support block is fixedly connected to the rotating end of the turning cylinder; the clamping assembly includes a telescopic cylinder and a clamping jaw; the telescopic cylinder is vertically and fixedly arranged on the support block; a connecting handle is provided at the end of the clamping jaw, and the connecting handle is fixedly connected to the telescopic end of the telescopic cylinder. The present invention can achieve rigid fixation of the wind turbine blade during the milling process of the pre-embedded bolt wind turbine blade, reduce jitter, double the feed rate and cutting speed, thereby improving the processing efficiency, shortening the processing cycle, and reducing the production cost.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power equipment, and particularly relates to a turnover clamping device for machining the end face of a wind turbine blade with embedded bolts. Background Art

[0002] Wind energy, with its advantages of environmental protection, low cost, and relatively high maturity of manufacturing technology, is regarded as the most potential energy source among renewable energy sources and has been vigorously developed and applied in various countries around the world. As a key component of wind turbines, the cost of wind turbine blades accounts for more than 20% of the entire wind turbine. Their safety and durability are the guarantee for the safe and economical operation of the entire unit.

[0003] With the maturity of wind power manufacturing and operation technologies, the power of wind turbines has been continuously increasing, and the corresponding size of wind turbine blades has been continuously increasing. When machining the end face of a wind turbine blade with embedded bolts, it is mostly carried out by a milling machine. However, due to the large size of the wind turbine blade, jitter is likely to occur during the machining process, and at the same time, the feed rate is small, resulting in low machining efficiency. Summary of the Invention

[0004] Aiming at the defects of the prior art, the invention provides a turnover clamping device for machining the end face of a wind turbine blade with embedded bolts, which can achieve rigid fixation of the wind turbine blade during the milling process of the end face of the wind turbine blade with embedded bolts, reduce jitter, double the feed rate and cutting speed, thereby improving machining efficiency, shortening the machining cycle, and reducing production costs.

[0005] The invention provides a turnover clamping device for machining the end face of a wind turbine blade with embedded bolts, comprising a turnover assembly and a clamping assembly;

[0006] The turnover assembly includes a turnover cylinder and a support block;

[0007] The support block is fixedly connected to the rotating end of the turnover cylinder;

[0008] The clamping assembly includes a telescopic cylinder and a clamping jaw;

[0009] The telescopic cylinder is vertically and fixedly arranged on the support block;

[0010] The end of the clamping jaw is provided with a connecting handle, and the connecting handle is fixedly connected to the telescopic end of the telescopic cylinder.

[0011] In the above technical solution, the invention can also be improved as follows.

[0012] Preferred technical solution, its additional technical feature lies in that: a vertical block is vertically and fixedly arranged at the upper end of the support block, and the connecting handle is slidably connected with the vertical block.

[0013] The preferred technical solution, its additional technical features are as follows: on the end face of the vertical block facing the connecting handle, a linear slide rail is vertically provided, and the connecting handle is fixedly connected to the slide table of the linear slide rail.

[0014] The preferred technical solution, its additional technical features are as follows: at one end of the upper part of the connecting handle away from the clamping jaw, a bolt connection part is formed, and at the middle part of the handle body of the connecting handle, a slide table connection part is formed.

[0015] The preferred technical solution, its additional technical features are as follows: there are two support blocks, which are respectively fixedly connected to the left and right rotating ends of the tilting cylinder, and on each support block, a telescopic cylinder is provided, and the telescopic end of each telescopic cylinder is fixedly connected to a connecting handle.

[0016] The preferred technical solution, its additional technical features are as follows: at one end of the support block close to the tilting cylinder, a sleeve is provided, and the sleeve is fixedly sleeved on the rotating end of the tilting cylinder.

[0017] The preferred technical solution, its additional technical features are as follows: a notch is formed by hollowing out between the two connecting handles.

[0018] The preferred technical solution, its additional technical features are as follows: at one end of the clamping jaw away from the connecting handle, a clamping part is provided, and there is an arc transition between the connecting handle and the clamping part.

[0019] The preferred technical solution, its additional technical features are as follows: at the lower end of the clamping part, a concave groove is formed, and an anti-slip gasket is provided in the concave groove.

[0020] The preferred technical solution, its additional technical features are as follows: the tilting cylinder is a hydraulic tilting cylinder, and the telescopic cylinder is a hydraulic telescopic cylinder.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes the rigid fixation of the wind power blade by setting a tilting assembly and a clamping assembly; by placing the wind power blade on the milling machine, the tilting cylinder rotates to drive the clamping jaw to rotate, and then the telescopic cylinder drives the clamping jaw to move downward to clamp the wind power blade, reducing the vibration of the wind power blade during the operation of the milling machine, doubling the feed rate and cutting speed, thereby improving the processing efficiency, shortening the processing cycle, and reducing the production cost. Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0023] Figure 1It is a schematic structural diagram of a flipping and clamping device for end face machining of embedded bolts in wind turbine blades according to an embodiment of the present invention.

[0024] Figure 2 It is a front view of a flipping and clamping device for end face machining of embedded bolts in wind turbine blades according to an embodiment of the present invention.

[0025] Figure 3 It is a side view of a flipping and clamping device for end face machining of embedded bolts in wind turbine blades according to an embodiment of the present invention.

[0026] Figure 4 It is a top view of a flipping and clamping device for end face machining of embedded bolts in wind turbine blades according to an embodiment of the present invention.

[0027] Figure 5 It is a schematic installation diagram of a flipping and clamping device for end face machining of embedded bolts in wind turbine blades on a milling surface device according to an embodiment of the present invention.

[0028] In the figure, the meanings of each mark are as follows:

[0029] 1. Flipping assembly; 11. Flipping cylinder; 12. Support block; 121. Vertical block; 122. Sleeve; 13. Linear slide rail; 2. Clamping assembly; 21. Telescopic cylinder; 22. Claw; 221. Connecting handle; 222. Clamping part; 223. Anti-slip gasket. Specific implementation manner

[0030] To further understand the content, features and effects of the present invention, the following embodiments are cited and described in detail as follows:

[0031] Please refer to Figures 1 to 5 , this embodiment provides a flipping and clamping device for end face machining of embedded bolts in wind turbine blades, including a flipping assembly 1 and a clamping assembly 2;

[0032] The flipping assembly 1 includes a flipping cylinder 11 and a support block 12;

[0033] The support block 12 is fixedly connected to the rotating end of the flipping cylinder 11;

[0034] The clamping assembly 2 includes a telescopic cylinder 21 and a claw 22;

[0035] The telescopic cylinder 21 is vertically and fixedly arranged on the support block 12;

[0036] The end of the claw 22 is provided with a connecting handle 221, and the connecting handle 221 is fixedly connected to the telescopic end of the telescopic cylinder 21.

[0037] In this embodiment, by providing a flipping assembly 1 and a clamping assembly 2, during use, the entire device is fixed to a milling device, and then the flipping cylinder 11 is activated. Since the support block 12 is fixedly connected to the rotating end of the flipping cylinder 11, the support block 12 can rotate. At the same time, the connecting handle 221 is fixedly connected to the telescopic end of the telescopic cylinder 21, and the telescopic cylinder 21 is fixedly arranged on the support block 12, causing the telescopic cylinder 21 and the connecting handle 221 to flip together with the support block 12, ultimately driving the jaws 22 to flip. In this embodiment, the flipping angle is 180 degrees. At this time, the jaws 22 are exactly aligned with the wind turbine blade. Then, the telescopic cylinder 21 contracts downward, driving the connecting handle 221 and the jaws 22 to move downward, ultimately pressing the wind turbine blade tightly, achieving rigid fixation of the wind turbine blade, avoiding vibration of the wind turbine blade during processing, ensuring the feed rate, and improving production efficiency.

[0038] After the processing of the wind turbine blade is completed, the telescopic cylinder 21 extends upward, causing the jaws 22 to be released. Then, the flipping cylinder 11 rotates 180 degrees, causing the jaws 22 to return to the initial position, completing the processing of the wind turbine blade.

[0039] Please refer to Figure 1 At the upper end of the support block 12, a vertical block 121 is fixedly provided. The connecting handle 221 is slidably connected to the vertical block 121.

[0040] The provided vertical block 121 is used to increase the stability and reliability of the connection between the support block 12 and the connecting handle 221. By setting the connection between the connecting handle 221 and the vertical block 121 as a sliding connection, during the operation of the telescopic cylinder 21, the up and down movement of the connecting handle 221 is more reliable.

[0041] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown in, on the end face of the vertical block 121 facing the connecting handle 221, a linear slide rail 13 is vertically provided. The connecting handle 221 is fixedly connected to the slide of the linear slide rail 13.

[0042] By making the connection between the vertical block 121 and the connecting handle 221 into a slide rail sliding and working together with the telescopic cylinder 21, the process of the entire jaws 22 moving up and down is more smooth and reliable.

[0043] Please refer to Figure 1 As shown in, at the end of the upper part of the connecting handle 221 away from the jaws 22, a bolt connection part is formed, and a slide connection part is formed on the middle body of the connecting handle 221.

[0044] The provided bolt connection part is used to connect to the telescopic end of the telescopic cylinder 21, and the provided slide connection part is used to connect to the slide.

[0045] Please refer to Figure 1, there are two support blocks 12, which are respectively fixedly connected to the left and right rotating ends of the flipping cylinder 11. Each support block 12 is provided with a telescopic cylinder 21, and the telescopic end of each telescopic cylinder 21 is fixedly connected with a connecting handle 221.

[0046] In this embodiment, there are two support blocks 12, telescopic cylinders 21, connecting handles 221 and linear slide rails 13, and they are designed in a symmetrical structure, which can further ensure the stable and reliable clamping of the clamping jaws 22.

[0047] Please refer to Figure 1 , one end of the support block 12 close to the flipping cylinder 11 is provided with a sleeve 122, and the sleeve 122 is fixedly sleeved on the rotating end of the flipping cylinder 11.

[0048] The provided sleeve 122 is used to enable the support block 12 to be stably connected to the flipping cylinder 11.

[0049] Please refer to Figure 1 , a gap is formed by hollowing out between the two connecting handles 221.

[0050] The formed gap facilitates the staff to observe whether the clamping jaws 22 tightly hold the wind power blade.

[0051] Please refer to Figure 1 , one end of the clamping jaw 22 away from the connecting handle 221 is provided with a clamping part 222, and there is an arc transition between the connecting handle 221 and the clamping part 222.

[0052] The provided clamping part 222 is used to contact the wind power blade and clamp the wind power blade.

[0053] Please refer to Figure 1 , the lower end of the clamping part 222 is concave to form a groove, and an anti-slip gasket 223 is arranged in the groove.

[0054] The provided anti-slip gasket 223 prevents the clamping jaws 22 from sliding during the clamping process.

[0055] In this embodiment, the flipping cylinder 11 is a hydraulic flipping cylinder, and the telescopic cylinder 21 is a hydraulic telescopic cylinder.

[0056] In addition, this embodiment also provides a structure for applying the flipping and clamping device to a milling surface device. The milling surface device includes a rotating assembly and a milling surface assembly; the rotating assembly includes a rotating arm, a central disk and telescopic support legs; the rotating arm is rotatably arranged at the center of the front end face of the central disk; there are four telescopic support legs and they are evenly distributed around the rear end face of the central disk; the milling surface assembly includes a milling head; the milling head is vertically arranged on the rotating arm, and the working end of the milling head faces away from the central disk. The above-mentioned flipping and clamping assembly in this embodiment is installed on two of the telescopic support legs.

[0057] The device is hoisted to the root end face of the wind turbine blade by a hoisting machine. Four telescopic legs extend to tighten the device against the blade, forming an integral whole with the blade. Then, the milling head is started, and at the same time, the rotating arm is rotated. Here, a driving motor can be installed on the central disk, and the output end of the driving motor is drivingly connected to the middle part of the rotating arm. The motor rotates to drive the rotating arm to rotate, and finally drives the milling head to rotate, so as to realize the processing of the bolts on the root end face of the wind turbine blade.

[0058] In the flipping and clamping device of this embodiment, the clamping assembly rotates 180° driven by the rotation of the flipping assembly. Then, the jaws of the clamping assembly extend outwards under the telescopic action of the telescopic cylinder. Next, the clamping assembly rotates 180° in the reverse direction driven by the rotation of the flipping assembly, and the jaws are located behind the cavity wall of the blade. Finally, the jaws retract and clamp the cavity wall of the blade under the contraction action of the telescopic cylinder.

[0059] There are 4 telescopic legs in this embodiment. During the working process, two of them are located above, and the other two are located below. The two telescopic legs equipped with the flipping and clamping assembly are located above. During the process of clamping the wind turbine blade, the flipping and clamping device of this embodiment can further ensure the clamping reliability of the blade, which is equivalent to rigid fixation, can improve the feed rate and chip removal speed of the milling device, improve the processing efficiency, shorten the processing cycle, and reduce the cost.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means more than two, unless otherwise specifically defined.

[0062] In the present invention, unless otherwise clearly defined or limited, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A flipping and clamping device for end face machining of embedded bolts in wind turbine blades, characterized in that: It includes a flipping component and a clamping component; the flipping component includes a flipping cylinder and a support block; the support block is fixedly connected to the rotating end of the flipping cylinder; the clamping component includes a telescopic cylinder and a clamping jaw; the telescopic cylinder is vertically and fixedly arranged on the support block; a connecting handle is provided at the end of the clamping jaw, and the connecting handle is fixedly connected to the telescopic end of the telescopic cylinder; A vertical block is vertically and fixedly arranged at the upper end of the support block, and the connecting handle is slidably connected with the vertical block. A linear slide rail is vertically arranged on the end face of the vertical block facing the connecting handle, and the connecting handle is fixedly connected to the slide table of the linear slide rail. A bolt connection part is formed at one end of the upper part of the connecting handle away from the clamping jaw, and a slide table connection part is formed at the middle part of the handle body of the connecting handle. There are two support blocks, which are respectively fixedly connected to the left and right rotating ends of the flipping cylinder. One telescopic cylinder is arranged on each support block, and the telescopic end of each telescopic cylinder is fixedly connected with one connecting handle; It is also equipped with a milling surface device, which includes a rotating component and a milling surface component; the rotating component includes a rotating arm, a central disk and telescopic legs. The rotating arm is rotatably arranged at the center of the front end face of the central disk, and there are four telescopic legs, which are evenly distributed and arranged on the rear end face of the central disk in a ring shape; the milling surface component includes a milling head, the milling head is vertically arranged on the rotating arm, and the working end of the milling head faces away from the central disk; the flipping and clamping device is installed on two telescopic legs in the rotating component; The process of the flipping and clamping device for fixing the wind power blade is as follows: start the flipping cylinder, and the flipping cylinder drives the support block to rotate. At the same time, the connecting handle is fixedly connected to the telescopic end of the telescopic cylinder, and the telescopic cylinder is fixedly arranged on the support block, so that the telescopic cylinder and the connecting handle follow the support block to flip together, and finally drive the clamping jaw to flip until the clamping surface of the clamping jaw faces the wind power blade. Then drive the telescopic end of the telescopic cylinder to contract downward, drive the connecting handle and the clamping jaw to move downward synchronously, and finally press the wind power blade tightly to realize the rigid fixation of the wind power blade.

2. The turnover clamping device for end face machining of embedded bolts for wind turbine blades according to claim 1, characterized in that: A sleeve is arranged at one end of the support block close to the flipping cylinder, and the sleeve is fixedly sleeved with the rotating end of the flipping cylinder.

3. The turnover clamping device for end face machining of embedded bolts for wind turbine blades according to claim 2, wherein: A gap is formed by hollowing out between the two connecting handles.

4. The turnover clamping device for end face machining of embedded bolts for wind turbine blades according to claim 3, characterized in that: A clamping part is arranged at one end of the clamping jaw away from the connecting handle, and an arc transition is formed between the connecting handle and the clamping part.

5. The overturning and clamping device for end face machining of embedded bolts for wind turbine blades according to claim 4, characterized in that: A groove is concavely formed at the lower end of the clamping part, and an anti-slip gasket is arranged in the groove.

6. The flipping and clamping device for machining the end face of a pre-embedded bolt for a wind turbine blade according to claim 1, wherein: The flipping cylinder is a hydraulic flipping cylinder, and the telescopic cylinder is a hydraulic telescopic cylinder.

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