Pressurized tooling unit, web assembly tooling, blade forming method and blade

Abstract

The present invention discloses a pressurized tooling unit, a web assembly tooling, a blade forming method and a blade. The pressurized tooling unit comprises: a connecting frame assembly, comprising a first bracket; a lifting assembly, rotatably arranged on the first bracket, the lifting assembly comprising a rotating frame, a lifting member and a first positioning member group arranged on the rotating frame, the first positioning member group comprising a plurality of first positioning members arranged at intervals along the extension direction of the rotating frame; a supporting assembly, movably arranged on the first bracket, the supporting assembly comprising a clamping frame and a plurality of second positioning members arranged on the clamping frame, at least part of the second positioning members are arranged opposite to the first positioning members, and there is a gap between the second positioning members and the first positioning members, and the gap is used to accommodate the web. The pressurized tooling unit provided by the present invention can accurately position the web and safely and accurately install the web on the blade shell, and the pressurized tooling unit can be stored separately to reduce the occupied space.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power, and in particular to a pressurizing tooling unit, a web assembly tooling, a blade forming method and a blade. Background Art

[0002] With the continuous development of wind power technology, providing wind turbines with higher power and stable operation has become a development trend in the industry. On the one hand, high-power wind turbines will make the blades longer and longer. The blades of wind turbines are mainly composed of a shell and a web. The shell is composed of two half shells, namely the windward shell and the leeward shell. The hollow space between the two half shells is supported by the web in the extension direction of the blade.

[0003] In the manufacture of blades, a web assembly tool is usually required to set the web on the blade shell. However, as the size of the blade gradually increases, the size of the web assembly tool also gradually increases, resulting in a large area occupied by the web assembly tool. Furthermore, the existing web assembly tool cannot safely and accurately assemble the web on the blade shell due to its unreasonable structure.

[0004] Therefore, there is an urgent need for a new pressurizing tooling unit, a web assembly tooling, a blade forming method and a blade. Summary of the invention

[0005] The embodiment of the present invention provides a pressurized tooling unit, a web assembly tooling, a blade forming method and a blade. The pressurized tooling unit can accurately position the web and safely and accurately install the web on the blade shell. At the same time, the pressurized tooling unit can be stored separately to reduce the occupied space.

[0006] On the one hand, an embodiment of the present invention provides a pressurized tooling unit, including: a connecting frame assembly, including a first bracket; a lifting assembly, rotatably arranged on the first bracket, the lifting assembly includes a rotating frame and a lifting member and a first positioning member group arranged on the rotating frame, the lifting member is used to cooperate with the web to lift the web, the extension direction of the rotating frame intersects with the extension direction of the first bracket, the first positioning member group includes a plurality of first positioning members arranged at intervals along the extension direction of the rotating frame; a supporting assembly, movably arranged on the first bracket, the supporting assembly includes a clamping frame and a plurality of second positioning members arranged on the clamping frame, at least some of the second positioning members are arranged opposite to the first positioning members, and there is a gap between the second positioning members and the first positioning members, and the gap is used to accommodate the web.

[0007] According to one aspect of an embodiment of the present invention, the lifting member is arranged on a side of the first positioning member group close to the first bracket, and the pressurizing tooling unit also includes: a pressing assembly, which is arranged on the first bracket and located between the first bracket and the lifting member, and the pressing assembly includes a pressing block, which is telescopically arranged to bond the web to the blade shell; the web includes a connecting flange for connecting to the blade shell, and the pressing block includes a pressing portion, and the pressing portion matches the shape of the connecting flange.

[0008] According to one aspect of an embodiment of the present invention, the number of first positioning member groups is two, and the two first positioning member groups are respectively arranged on both sides of the rotating frame; and / or the number of supporting components is two, and the two supporting components are arranged opposite to each other and symmetrical about the rotating bracket; the second positioning member corresponds to the first positioning member one by one to form a gap.

[0009] According to one aspect of an embodiment of the present invention, the lifting assembly also includes: an adjusting member, which is arranged between the first positioning member and the rotating frame, and the adjusting member can adjust the distance between the first positioning member and the rotating frame; the first positioning member includes a first roller, the axis of the first roller is parallel to the rotation axis of the rotating frame, and the component material of the first roller includes polyurethane.

[0010] According to one aspect of the embodiment of the present invention, the second positioning member includes a second roller, the axis of the second roller intersects with the rotation axis of the rotating frame, and the constituent material of the second roller includes polyurethane.

[0011] According to one aspect of an embodiment of the present invention, the connecting frame assembly also includes two connecting arm mechanisms arranged at both ends of the first bracket, and the connecting arm mechanisms can be converted between an expanded state and a stored state. In the expanded state, the lifting assembly and the supporting assembly are arranged between the two connecting arm mechanisms.

[0012] On the other hand, an embodiment of the present invention further provides a web assembly tool, comprising: a plurality of pressurized tool units of any of the above-mentioned embodiments; a tool bracket for fixing each pressurized tool unit, the tool bracket being capable of making the projections of each pressurized tool unit along the extension direction of the tool bracket overlap.

[0013] On the other hand, an embodiment of the present invention also provides a blade forming method, comprising: forming a shell to be assembled in a blade shell forming mold, the shell to be assembled is one of the windward shell and the leeward shell of the blade; using a lifting assembly to connect the web with each pressurized tooling unit arranged on a tooling bracket, the pressurized tooling unit is a pressurized tooling unit of any of the above-mentioned embodiments; placing a second positioning piece close to the web so that the second positioning piece and the first positioning piece clamp the web; aligning and connecting the web and the pressurized tooling unit with the blade shell forming mold so that the web is connected to the shell to be assembled; assembling the other of the windward shell and the leeward shell with the shell to be assembled to obtain a blade.

[0014] According to another aspect of an embodiment of the present invention, after the web is connected to each pressurized tooling unit arranged on the tooling bracket by using a lifting assembly, the blade forming method also includes: setting the second positioning member away from the first positioning member so that the distance between the second positioning member and the first positioning member is greater than 2 times the thickness of the web.

[0015] According to another aspect of the embodiment of the present invention, the windward surface shell and the leeward surface shell are connected to form a blade shell, the web includes a connecting flange for connecting to the blade shell, and the web is connected to each pressurized tooling unit arranged on the tooling bracket by using a lifting assembly, including: rotating the lifting assembly until the lifting member contacts the connecting flange of the web, and at the same time, the first positioning member abuts against the surface of the web in the thickness direction.

[0016] According to another aspect of the embodiment of the present invention, the pressurizing tooling unit also includes a pressing assembly, which connects the belly plate and the pressurizing tooling unit to the shell molding mold in an aligned manner, so that the pressing assembly is debugged before the belly plate is connected to the shell to be assembled. The debugging of the pressing assembly includes: rotating the lifting assembly until the connecting flanges of the lifting member and the belly plate are misaligned with each other; and moving the pressing assembly.

[0017] On the other hand, an embodiment of the present invention further provides a blade, comprising: a blade formed using the blade forming method of any of the above-mentioned embodiments.

[0018] The embodiments of the present invention provide a pressurized tooling unit, a web assembly tooling, a blade forming method, and a blade, wherein the pressurized tooling unit includes a connecting frame assembly, a lifting assembly, and a supporting assembly, wherein the lifting assembly includes a rotating frame, a lifting member and a first positioning member group arranged on the rotating frame, so that the lifting member and the first positioning member group can be rotatably arranged on the first bracket through the rotating frame, and the lifting member can cooperate with the web to lift the web when it is rotated to a reasonable position, so as to facilitate lifting the web and transferring it to the blade shell. Furthermore, the supporting assembly includes a second positioning member, at least part of which is arranged relative to the first positioning member and there is a gap between the two, and the web can be placed in the gap, so that the chord position of the web on the shell can be limited. Moreover, since the support assembly is movably arranged on the first bracket, the gap between the second positioning member and the first positioning member can be adjusted according to actual needs. For example, when the web is connected to the pressurized tooling unit, the gap between the second positioning member and the first positioning member is increased by moving the support assembly, which facilitates the placement of the web in the gap and reduces damage to the web. When the web is placed in the gap and needs to be transported, the support assembly is moved so that the second positioning member abuts against the surface of the web, so that the second positioning member and the first positioning member jointly clamp the web to better limit the web, thereby enabling the web to be safely and accurately connected to the blade shell.

[0019] Furthermore, since the pressurized tooling unit occupies a small area, it can be stored separately to save space. When the pressurized tooling unit is applied to the web assembly tooling, by connecting the pressurized tooling unit to the tooling bracket, multiple pressurized tooling units can cooperate with each other to limit the chordal position of the web on the shell to be assembled. At the same time, multiple pressurized tooling units can work simultaneously to improve the blade forming efficiency. After the web assembly is completed, the pressurized tooling unit can be stored separately. Compared with the traditional structure of making the pressurized tooling into an integral structure, the pressurized tooling unit provided by the embodiment of the present invention can effectively save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following is a brief introduction to the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 is a three-dimensional diagram of a pressurizing tooling unit provided by an embodiment of the present invention;

[0022] Figure 2 It is a front view of a pressurizing tooling unit provided by one embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a lifting assembly provided by an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of a pressing assembly provided by an embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of the overall structure of a web assembly tool and a web assembly according to an embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the assembly of a pressurizing tooling unit and a shell forming mold according to an embodiment of the present invention;

[0027] Figure 7 It is a schematic flow chart of a blade forming method according to an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of a blade according to an embodiment of the present invention.

[0029] Marking Description:

[0030] in:

[0031] Y-chord direction; N-width direction;

[0032] 100-pressurized tooling monomer;

[0033] 10-connecting frame assembly; 11-first bracket; 12-connecting arm mechanism; 121-matching portion;

[0034] 20-lifting assembly; 21-rotating frame; 22-lifting member; 23-first positioning member group; 231-first positioning member; 2311-first roller; 24-adjusting member;

[0035] 30-support assembly; 31-clamping frame; 32-second positioning member; 321-second roller;

[0036] 40-pressing assembly; 41-pressing block;

[0037] 50-Lifting arm;

[0038] 201- tooling bracket; 202- web bracket;

[0039] 300-blade shell forming mold; 301-base; 302-first positioning portion; 303-shell to be assembled;

[0040] 400-blade; 410-windward shell; 420-leeward shell; 430-leading edge; 440-trailing edge; 450-web; 451-body; 452-connecting flange; 460-hollow space; 470-adhesive;

[0041] 500-Lifting assembly. DETAILED DESCRIPTION

[0042] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the sizes of some structural components or areas in the drawings may be enlarged for other structural components or areas to help understand the embodiments of the present invention.

[0043] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise specified, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0044] In addition, the terms "include", "comprises", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or assembly comprising a series of elements includes not only those elements, but also other mechanisms that are not explicitly listed or inherent in the structure or assembly. In the absence of further restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the article or device comprising the elements. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the present invention.

[0045] The features and exemplary embodiments of various aspects of the present invention will be described in detail below.In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0046] In order to better understand the present invention, Figures 1 to 8 The pressurizing tooling unit 100, the web assembly tooling, the blade forming method and the blade 400 provided in the embodiments of the present invention are described in detail.

[0047] Please also read Figures 1 to 6 , Figure 1 A three-dimensional diagram of a pressurizing tooling unit provided by an embodiment of the present invention is shown. Figure 2 The figure shows a front view of a pressurizing tooling unit provided by an embodiment of the present invention. Figure 3 A schematic diagram of the structure of a lifting assembly provided by an embodiment of the present invention is shown. Figure 4 A schematic diagram of the structure of a pressing assembly provided by an embodiment of the present invention is shown. Figure 5 The figure shows the overall structure of the web assembly tool and the web assembly according to one embodiment of the present invention. Figure 6 A schematic structural diagram showing the assembly of a pressurizing tooling unit and a shell forming mold according to an embodiment of the present invention.

[0048] The embodiment of the present invention provides a pressurized tooling unit 100, including a connecting frame assembly 10, a lifting assembly 20 and a supporting assembly 30. The connecting frame assembly 10 includes a first bracket 11. The lifting assembly 20 is rotatably arranged on the first bracket 11, and the lifting assembly 20 includes a rotating frame 21, a lifting member 22 and a first positioning member group 23 arranged on the rotating frame 21, and the lifting member 22 is used to cooperate with the web 450 to lift the web 450, and the extension direction of the rotating frame 21 intersects with the extension direction of the first bracket 11, and the first positioning member group 23 includes a plurality of first positioning members 231 arranged at intervals along the extension direction of the rotating frame 21. The supporting assembly 30 is movably arranged on the first bracket 11, and the supporting assembly 30 includes a clamping frame 31 and a plurality of second positioning members 32 arranged on the clamping frame 31, at least part of the second positioning members 32 is arranged opposite to the first positioning member 231, and there is a gap between the second positioning member 32 and the first positioning member 231, and the gap is used to accommodate the web 450.

[0049] The support assembly 30 can be moved along the extension direction of the first bracket 11 to adjust the gap between the second positioning member 32 and the first positioning member 231, so that the second positioning member 32 and the first positioning member 231 can better clamp the web 450 and better limit the chord Y position of the web 450 on the shell 303 to be assembled. In some embodiments, the second positioning member 32 corresponds to the first positioning member 231 one by one and is arranged relatively.

[0050] The pressurized tooling unit 100 provided in the embodiment of the present invention includes a connecting frame assembly 10, a lifting assembly 20 and a supporting assembly 30. The lifting member 22 in the lifting assembly 20 can cooperate with the web 450 to lift the web 450, so as to facilitate lifting and transferring the web 450 to the shell 303 to be assembled. Furthermore, the supporting assembly 30 provided in the embodiment of the present invention can be moved to prevent damage to the web 450, so that the web 450 can be safely and accurately connected to the shell. At the same time, since the pressurized tooling unit 100 occupies a small area, it can be stored separately to save space.

[0051] In some embodiments, the clamping frame 31 includes an open state and a locked state. In the open state, the gap between the second positioning member and the first positioning member is greater than the assembly spacing of the web 450. Optionally, the assembly spacing of the web 150 is greater than or equal to twice the thickness of the web 450. In the locked state, the gap between the second positioning member and the first positioning member is less than or equal to the thickness of the body 451 of the web 450. Through the above arrangement, it is possible to prevent the pressurized tooling unit 100 from colliding with the web 450, resulting in deformation or bonding defects of the web 450. During the process of hoisting the pressurized tooling unit 100 and installing the web 450, the clamping frame 31 is in a locked state. At this time, the gap between the second positioning member and the first positioning member is equal to the assembly spacing of the web 450, ensuring that the positioning data of the web 450 is accurate.

[0052] See also Figures 1 to 3 In some embodiments, the angle between the extension direction of the rotating frame 21 and the extension direction of the first bracket 11 is 90 degrees. The rotating frame 21 rotates around its own axis, and the rotating frame 21 can drive the lifting member 22 and the first positioning member group 23 to rotate synchronously to lift and release the web 450. The extension direction of the lifting member 22 is the same as the extension direction of the first positioning member group 23, so that the lifting member 22 and the first positioning member group 23 can approach or move away from the web 450 at the same time.

[0053] To improve the strength of the rotating frame 21, the rotating frame 21 may optionally include square steel, in which case the rotation axis of the rotating frame 21 is the center line of the square steel. In a specific implementation, to achieve the rotation of the rotating frame 21, the rotating frame 21 may be connected to a rotating drive member, for example, the rotating frame 21 may be connected to a rotating shaft of a generator.

[0054] See also Figure 6 In some embodiments, the web 450 includes a body 451 and a connecting flange 452, the connecting flange 452 is arranged at both ends of the body 451, and the connecting flange 452 is used to connect with the blade shell. In specific implementation, when the web 450 needs to be lifted, the web 450 is placed in the pressurized tooling unit 100, and the rotating frame 21 is rotated so that the lifting member 22 abuts against the inner surface of the connecting flange 452. At this time, the plurality of first positioning members 231 in the first positioning member group 23 are in contact with the surface of the body 451 along the thickness direction to support the web 450. When the web 450 needs to be released, the rotating frame 21 is rotated again, for example, the rotating frame 21 is rotated 90 degrees. At this time, the lifting member 22 and the connecting flange 452 are mutually misaligned, and the first positioning member 231 and the body 451 of the web 450 are not in contact, so that the web 450 can be installed on the blade shell.

[0055] Please read further Figure 2 and Figure 4In some embodiments, the lifting member 22 is disposed on a side of the first positioning member group 23 close to the first bracket 11, and the pressurized tooling unit 100 further includes a pressing assembly 40, which is disposed on the first bracket 11 and between the first bracket 11 and the lifting member 22. The pressing assembly 40 includes a pressing block 41, which is telescopically disposed to bond the web 450 to the blade shell. Since the web 450 is usually fixed to the blade shell by an adhesive 470, the web 450 is pressed down by setting the pressing assembly 40, which facilitates the fastening connection between the web 450 and the blade shell. At the same time, by setting the pressing assembly 40, the thickness of the adhesive 470 layer between the web 450 and the blade shell can be adjusted to improve the molding quality of the blade 400.

[0056] In a specific implementation, the pressing assembly 40 may further include a driving member, the driving member including a telescopic rod, the telescopic rod being connected to the pressing block 41 to achieve a telescopic setting of the pressing block 41. Optionally, the driving member may be a pneumatic cylinder or an electric cylinder.

[0057] In order to better press down the web 450, in some embodiments, when the web 450 includes a connecting flange 452 for connecting to the blade shell, the pressing block 41 includes a pressing portion, and the shapes of the contact surfaces of the pressing portion and the connecting flange 452 match each other. Optionally, the pressing portion and the connecting flange 452 are parallel to each other, and at this time, the pressing block 41 and the connecting flange 452 of the web 450 keep the same angle. Through the above arrangement, when the pressing portion presses down the web 450, the contact surface between the pressing portion and the connecting flange 452 of the web 450 is increased. It can be understood that in order to maintain a stable angle of the pressing block 41 of the pressing assembly 40 and ensure the distance between the web 450 and the shell 303 to be assembled along the width direction N, the position of the pressing block 41 can be adjusted when the pressing assembly 40 is used for the first time. After the distance between the web 450 and the inner surface of the shell 303 to be assembled is ensured to be within a preset distance, an electric welder can be used to weld the pressing block 41 to the pressing assembly 40 to prevent the position of the pressing block 41 from shifting during use. Optionally, the preset distance can be set according to user needs.

[0058] It is understandable that a single web 450 can be connected to the shell 303 to be assembled using the pressurized tooling unit 100 , or a pair of webs 450 can be simultaneously connected to the shell 303 to be assembled using the pressurized tooling unit 100 to improve the forming efficiency of the blade 400 .

[0059] In order to simultaneously lift the paired webs 450 and connect them to the shell 303 to be assembled, in some embodiments, there are two first positioning member groups 23, and the two first positioning member groups 23 are respectively arranged on both sides of the rotating frame 21; and / or, there are two support assemblies 30, and the two support assemblies 30 are arranged opposite to each other and symmetrically about the rotating frame 21; the second positioning member 32 corresponds to the first positioning member 231 one by one to form a gap.

[0060] Optionally, in order to safely and accurately connect the webs 450 used in pairs, the number of the first positioning member groups 23 and the number of the supporting assemblies 30 are both two. The two first positioning member groups 23 are arranged between the two supporting assemblies 30, so that the first positioning member groups 23 and the supporting assemblies 30 jointly support the webs 450, thereby accurately limiting the chord-wise Y position of the webs 450 on the shell 303 to be assembled.

[0061] In specific implementation, since the second positioning member 32 corresponds to the first positioning member 231 in a one-to-one manner to form a gap, the web 450 can be accommodated in the gap, so that the second positioning member 32 and the first positioning member 231 cooperate with each other to jointly position the web 450, and prevent the web 450 from tilting during assembly, lifting, etc. At the same time, since the second positioning member 32 and the first positioning member 231 can generate a clamping force on the web 450, by the one-to-one correspondence between the second positioning member 32 and the first positioning member 231, the force on the web 450 is uniform, and stress damage to the web 450 is prevented.

[0062] Please read further Figure 3 In some embodiments, the lifting assembly 20 further includes an adjusting member 24, which is disposed between the first positioning member 231 and the rotating frame 21, and the adjusting member 24 can adjust the distance between the first positioning member 231 and the rotating frame 21. By disposing the adjusting member 24 in the lifting assembly 20, the adjusting member 24 can rotate simultaneously with the lifting assembly 20, so that when the lifting assembly 20 lifts the web 450, the first positioning member 231 can always be supported on the surface of the web 450 body 451 to prevent the web 450 from being deformed. Optionally, the adjusting member 24 includes a reverse nut, which can fine-tune the distance between the first positioning member 231 and the rotating frame 21.

[0063] Optionally, the first positioning member 231 includes a first roller 2311, the axis of the first roller 2311 is parallel to the rotation axis of the rotating frame 21, and the constituent material of the first roller 2311 includes polyurethane. Through the above arrangement, when the lifting assembly 20 needs to lift the web 450, the first roller 2311 can contact the inner surface of the body 451 of the web 450, so that the rotating frame 21 drives the first roller 2311 to rotate along the surface of the web 450 during the rotation process, thereby preventing damage to the web 450. Furthermore, by reasonably setting the material of the first roller 2311, the wear resistance of the first roller 2311 can be increased, and the damage to the web 450 caused by the first roller 2311 rolling along the surface of the web 450 can be further reduced, thereby improving the reliability of the pressurized tooling unit 100.

[0064] In order to further accurately position the web 450 at the chord-wise Y position on the blade shell, the second positioning member 32 includes a second roller 321, the axis of the second roller 321 intersects with the rotation axis of the rotating frame 21, and the component material of the second roller 321 includes polyurethane. Optionally, the angle between the axis of the second roller 321 and the rotation axis of the rotating frame 21 is 90 degrees, and by reasonably setting the angle between the second roller 321 and the rotating frame 21, the web 450 can be better clamped between the second roller 321 and the first roller 2311, so that the web 450 is accurately installed on the shell 303 to be assembled.

[0065] In some embodiments, the support assembly 30 also includes a screw assembly, which connects the second positioning member 32 to the clamping frame 31. By setting the screw assembly, the distance between the second positioning member 32 and the clamping frame 31 can be adjusted, thereby ensuring the accuracy of the positioning data of the web 450 and preventing the web 450 from shrinking and deforming.

[0066] In some embodiments, the connecting frame assembly 10 further includes two connecting arm mechanisms 12 disposed at both ends of the first bracket 11, and the connecting arm mechanisms 12 can be switched between an unfolded state and a stowed state. In the unfolded state, the lifting assembly 20 and the supporting assembly 30 are disposed between the two connecting arm mechanisms 12. At this time, the connecting frame assembly 10 is a gantry frame structure spanning the top and both sides of the web 450. Optionally, the connecting arm mechanism 12 and the first bracket 11 are connected by a rotating shaft latch, so that the connecting arm mechanism 12 can realize the functions of folding and unfolding, saving space.

[0067] Through the above arrangement, the connecting arm mechanism 12 can be set according to the needs of the user. When the pressurized tooling unit 100 is needed to install the web 450, the two connecting arm mechanisms 12 are opened. After the pressurized tooling unit 100 is used, the connecting arm mechanism 12 can be stored to further reduce the space occupied by the pressurized tooling unit 100. In order to achieve accurate connection between the web 450 and the shell 303 to be assembled, the shell 303 to be assembled is usually formed in the blade shell forming mold, and the web 450 and the pressurized tooling unit 100 are connected to the blade shell forming mold 300 as a whole. The pressurized tooling unit 100 cooperates with the shell forming mold 300 to achieve accurate installation of the web 450 and the shell 303 to be assembled.

[0068] Please read further Figure 6 In order to improve the installation quality of the web 450 , in some embodiments, the connecting arm mechanism 12 includes a matching portion 121 , which is disposed at one end of the connecting arm mechanism 12 , and the matching portion 121 can cooperate with the blade shell molding mold 300 to limit the pressurized tooling unit 100 .

[0069] Optionally, the blade shell forming mold 300 includes a mold cavity and a base 301, wherein the mold cavity is used to form a shell 303 to be assembled, and the base 301 includes a first positioning portion 302, wherein the first positioning portion 302 matches the matching portion 121, and optionally, the first positioning portion 302 can be one of a positioning block or a positioning hole, and the matching portion 121 can be the other, and the pressurized tooling unit 100 and the blade shell forming mold 300 are accurately positioned by the mutual cooperation of the first positioning portion 302 and the matching portion 121, thereby achieving accurate positioning of the web 450 and the shell 303 to be assembled. It can be understood that the matching portions 121 on the two connecting arm mechanisms 12 can be of the same structure, and of course, the sizes of the two matching portions 121 can also be different, so as to alleviate the situation that the pressurized tooling unit 100 and the blade shell forming mold 300 are stuck during positioning due to processing errors.

[0070] During the assembly process of the web 450 with the shell 303 to be assembled, the web 452 needs to be hoisted. In some embodiments, the pressurized tooling unit 100 further includes a hoisting arm 50, which is disposed on the first bracket 11. Optionally, there may be two hoisting arms 50, which are symmetrical about the rotating frame 21, so that the structure of the pressurized tooling unit 100 is more reasonable. The hoisting arm 50 includes a hook structure to cooperate with an external hoisting component to hoist, transport and install the pressurized tooling unit 100 and the web 450.

[0071] In summary, the pressurized tooling unit 100 provided in the embodiment of the present invention includes a connecting frame assembly 10, a lifting assembly 20 and a supporting assembly 30, wherein the lifting assembly 20 includes a rotating frame 21 and a lifting member 22 and a first positioning member group 23 arranged on the rotating frame 21, so that the lifting member 22 and the first positioning member group 23 are rotatably arranged on the first bracket 11 through the rotating frame 21, wherein the lifting member 22 can cooperate with the web 450 to lift the web 450 when rotating to a reasonable position, so as to facilitate lifting and transferring the web 450 to the blade shell. Further, the supporting assembly 30 includes a second positioning member 32, at least part of the second positioning member 32 is arranged relative to the first positioning member 231 and there is a gap between the two, and the web 450 can be placed in the gap, so that the gap can position the chord-wise Y position of the web 450 on the shell. Moreover, since the support assembly 30 is movably arranged on the first bracket 11, the gap between the second positioning member 32 and the first positioning member 231 can be adjusted according to actual needs. For example, when the web 450 is connected to the pressurized tooling unit 100, the gap between the second positioning member 32 and the first positioning member 231 is increased by moving the support assembly 30, so that the web 450 is placed in the gap and the damage to the web 450 is reduced. When the web 450 is placed in the gap, the support assembly 30 is moved so that the second positioning member 32 is abutted against the surface of the web 450, so that the second positioning member 32 and the first positioning member 231 jointly clamp the web 450 to better limit the web 450, thereby enabling the web 450 to be safely and accurately connected to the blade shell.

[0072] Furthermore, since the pressurized tooling monomer 100 occupies a small area, it can be stored separately to save space. When the pressurized tooling monomer 100 is applied to the web assembly tooling, by connecting the pressurized tooling monomer 100 to the tooling bracket 201, multiple pressurized tooling monomers 100 can cooperate with each other to limit the chord Y position of the web 450 on the shell 303 to be assembled, and multiple pressurized tooling monomers 100 can work simultaneously to improve the forming efficiency of the blade 400. After the web 450 is assembled, the pressurized tooling monomer 100 can be stored separately. Compared with the traditional structure of making the pressurized tooling into an integral structure, the pressurized tooling monomer 100 provided in the embodiment of the present invention can effectively save space.

[0073] Please read further Figure 5 The embodiment of the present invention further provides a web assembly tool, comprising a pressurized tooling unit 100 and a tooling bracket 201 of any of the above embodiments, wherein the tooling bracket 201 is used to fix each pressurized tooling unit 100, and the tooling bracket 201 can make the projections of each pressurized tooling unit 100 along the extension direction of the tooling bracket 201 coincide with each other, wherein the extension direction of the tooling bracket 201 coincides with the projections of the attached Figure 5The extending direction of the middle web 450 is parallel. Through the above arrangement, the tooling bracket 201 can define the position between the plurality of pressurizing tooling units 100 , and further the pressurizing tooling units 100 define the position of the web 450 in the entire long axis direction.

[0074] In some embodiments, the web assembly tool further includes a web support 202 for supporting the web 450. In order to further save the space occupied by the web assembly tool, the tool support 201 is arranged on the outside of the web support 202, so that when the pressurized tool unit 100 is assembled on the tool support 201, it can be assembled and matched with the web 450 arranged on the web support 202, thereby avoiding multiple transfers of the pressurized tool unit 100. After the tool support 201 assembles multiple pressurized tool units 100, the multiple pressurized tool units 100 can be connected to the web 450 respectively through the lifting assembly 20, and then the hook structures on the lifting arms 50 of all the pressurized tool units 100 are sequentially hung on the crossbeams of the corresponding lifting assemblies 500, so as to realize the overall lifting of the web 450 and multiple pressurized tool units 100. Optionally, the matching position between the hanging arm 50 and the hanging assembly 500 may adopt a wedge-shaped match to achieve a stable connection between the hanging arm 50 and the hanging assembly 500 .

[0075] Since the web assembly tooling provided in the embodiment of the present invention includes the processing tooling unit of any of the above embodiments, the web 450 can be connected to the shell 303 to be assembled more safely and accurately, and the space occupied by the web assembly tooling is reduced, which is convenient for promotion and application.

[0076] See also Figure 7 The embodiment of the present invention further provides a blade forming method, using the above-mentioned pressurizing tooling unit 100 or using the web assembly tooling of any of the above-mentioned embodiments, the blade forming method provided by the embodiment of the present invention includes the following steps:

[0077] S110, forming a shell 303 to be assembled in the blade shell forming mold 300, where the shell 303 to be assembled is one of the windward shell 410 and the leeward shell 420 of the blade 400;

[0078] S120, using the lifting assembly 20 to connect the web 450 to each pressurized tooling unit 100 disposed on the tooling bracket 201;

[0079] S130, placing the second positioning member 32 close to the web 450, so that the second positioning member 32 and the first positioning member 231 clamp the web 450;

[0080] S140, aligning and connecting the web 450 and the pressurizing tooling unit 100 with the shell forming mold 300, so that the web 450 is connected to the shell 303 to be assembled;

[0081] S150 , assembling the other of the windward surface shell 410 and the leeward surface shell 420 with the shell to be assembled 303 to obtain the blade 400 .

[0082] The blade forming method provided in the embodiment of the present invention includes using the pressurized tooling unit 100 of any of the above embodiments to install the web 450 on the shell 303 to be assembled, so that the web 450 can be quickly, safely and accurately installed on the shell 303 to be assembled, thereby improving the forming efficiency of the blade 400 and improving the quality of the blade 400, and facilitating promotion and application. It should be noted that the web 450 can be installed on the shell 303 to be assembled individually, or a pair of webs 450 to be installed can be installed on the shell 303 to be assembled together. The installation method of a single web 450 to be installed is similar to the installation method of a pair of webs 450 to be installed together. In this article, the installation of a pair of webs 450 to be installed on the shell 303 to be assembled is taken as an example.

[0083] In step S110, forming the shell 303 to be assembled in the blade shell forming mold 300 may include placing a main beam in the blade shell forming mold 300, and then laying a skin on the main beam to form the shell 303 to be assembled. In a specific implementation, the blade shell forming mold 300 includes a windward shell forming mold and a leeward shell forming mold. When the shell 303 to be assembled is a windward shell 410, the main beam may be placed in the windward shell forming mold, and then the skin may be laid on the main beam to form the windward shell 410. Optionally, when the shell 303 to be assembled is a leeward shell 420, the main beam may be placed in the leeward shell forming mold, and then the skin may be laid on the main beam to form the leeward shell 420. It is understandable that the main beam can be positioned in the windward shell 410 or the leeward shell 420 by a positioning device, so that the position of the main beam in the shell 303 to be assembled is accurate, thereby improving the structural accuracy of the shell 303 to be assembled and facilitating accurate assembly of the shell 303 to be assembled and the web 450.

[0084] In some embodiments, step S120, using the lifting assembly 20 to connect the web 450 to each pressurized tooling unit 100 set on the tooling bracket 201 includes: rotating the lifting assembly 20 until the lifting member 22 contacts the connecting flange 452 of the web 450, and at the same time, the first positioning member 231 abuts against the surface of the web 450 in the thickness direction.

[0085] Specifically, in step S120, a plurality of pressurized tooling units 100 placed separately can be first connected to the tooling bracket 201, so that the pressurized tooling units 100 can accurately limit the web 450. Then, the rotating frame 21 in the plurality of pressurized tooling units 100 is rotated simultaneously, so that the lifting members 22 connected to the rotating frame 21 are respectively connected to the connecting flanges 452 of the two webs 450 used in pairs, and the first positioning member 231 is against the surface of the body 451 of the web 450 at this time, so as to support and position the web 450. Optionally, the rotating systems in the plurality of pressurized tooling units 100 are connected in series, so that the plurality of rotating frames 21 can rotate simultaneously, so as to drive the plurality of lifting members 21 and the first positioning member 231 to be connected to the web 450. It can be understood that the plurality of pressurized tooling units 100 are arranged at intervals along the long axis direction of the web 450, so as to lift and position the entire web 450.

[0086] In some embodiments, in step S120, after the web 450 is connected to each pressurized tooling unit 100 disposed on the tooling bracket 201 by using the lifting assembly 20, the blade forming method further includes: arranging the second positioning member 32 away from the first positioning member 231, so that the distance between the second positioning member 32 and the first positioning member 231 is greater than 2 times the thickness of the web 450. Through the above arrangement, before the pressurized tooling unit 100 is connected to the web 450, sufficient space is reserved for the web 450, so as to prevent the pressurized tooling unit 100 from causing damage to the web 450.

[0087] Furthermore, by cooperating with the first positioning member 231 and the second positioning member 32, the pressurized tooling unit 100 and the web 450 can be smoothly installed, and the web 450 can be positioned at the same time. At the same time, the second positioning member 32 abuts against the outside of the web 450 to prevent the web 450 from deforming outward. The first positioning member 231 abuts against the inside of the web 450 to prevent the web 450 from shrinking and deforming inward. The second positioning member 32 corresponds to the first positioning member 231 one by one, and is clamped on the web 450, which can effectively prevent the web 450 from shrinking and deforming.

[0088] In step S130, the clamping frame 31 can be moved so that the clamping frame 31 drives the second positioning member 32 to approach the web 450, so that the second positioning member 32 and the first positioning member 231 clamp the web 450, so as to limit the chord position of the web 450 on the blade shell. It can be understood that the clamping frame 31 can be driven to move by a driving member such as a cylinder or an electric cylinder. In order to make the clamping frames 31 of multiple pressurized tooling units 100 move synchronously, the gas circuits of the cylinders can be connected in series or the control circuits of the electric cylinders can be connected in series.

[0089] In some embodiments, the pressurized tooling unit 100 further includes a pressing assembly 40, and step S140, the web 450 is connected to the pressurized tooling unit 100 and the shell forming mold 300 in an aligned manner, so that the web 450 is connected to the shell 303 to be assembled, and the pressing assembly 40 is debugged before the web 450 is connected, wherein the debugging step of the pressing assembly 40 includes: rotating the lifting assembly 20 until the lifting member 22 and the connecting flange 452 of the web 450 are mutually misaligned; moving the pressing assembly 40. Specifically, the pressing assembly 40 is moved so that the distance between the web 450 close to the surface of the shell 303 to be assembled and the shell 303 to be assembled is a preset distance. Through the above-mentioned setting, the distance between the web 450 and the shell 303 to be assembled along the width direction N is uniform, so that the thickness of the adhesive 470 meets the requirements, thereby improving the quality of the blade 400.

[0090] In some embodiments, when the pressurized tooling unit 100 is used for the first time to assemble the web 450, the pressurized component 40 can be debugged. After the debugging of the pressurized component 40 is completed, the debugging steps of the pressurized component 40 are no longer repeated. The web 450 can be directly connected to the pressurized tooling unit 100 and the shell molding mold 300, so that the web 450 is connected to the shell 303 to be assembled.

[0091] In specific implementation, the pressing assembly 40 is connected to the first bracket 11 by a screw rod. When debugging the pressing assembly 40, the screw rod can be adjusted to ensure that the thickness of the adhesive 470 is a preset distance. After debugging, the screw rod is locked to optimize the thickness of the adhesive 470. Optionally, the locking screw rod can be spot welded by an electric welder. When used later, there is no need to adjust the screw rod position of the pressing assembly 40, which is convenient to use.

[0092] In some embodiments, when installing the web 450, the web 450 is first placed on the web support 202, and then the clamping frame 31 of each pressurized tooling unit 100 is moved so that the distance between the second positioning member 32 and the first positioning member 231 is greater than the thickness of the web 450. Then, the hoisting assembly 500 is used to sequentially place each pressurized tooling unit 100 on the corresponding tooling support 201; after the placement is completed, the lifting assembly 20 of each pressurized tooling unit 100 is rotated so that the lifting member 22 is connected to the connecting flange 452 of the web 450, and the clamping frame 31 of each pressurized tooling unit 100 is moved so that the first positioning member 231 and the second positioning member 32 clamp the web 450, so as to complete the connection between the web 450 and the pressurized tooling unit 100. Then, the hoisting arm 50 is hoisted with the hoisting assembly 500, and the position of the hoisting assembly 500 is slowly adjusted until the hook structures on the hoisting arms 50 of all pressurized tooling units 100 are matched with the hoisting assembly 500. Finally, the hoisting assembly 500 is lifted to realize the overall lifting of the hoisting assembly 500, the pressurized tooling unit 100 and the web 450.

[0093] See also Figure 8 , Figure 8 The schematic diagram of the structure of a blade according to an embodiment of the present invention is shown. The embodiment of the present invention further provides a blade 100, which is made by the above blade forming method.

[0094] In some embodiments, the blade 100 includes a blade shell and a web 450 used in pairs. The blade shell has an axial direction and a chord direction Y. The shell has a leading edge 430 and a trailing edge 440 in the chord direction Y. The blade shell includes a windward shell 410 and a leeward shell 420. The windward shell 410 and the leeward shell 420 are arranged opposite to each other. The windward shell 410 and the leeward shell 420 are buckled to form a hollow space 460. The web 450 is arranged in the hollow space 460, and the web 450 is connected to the windward shell 410 and the leeward shell 420 respectively. The embodiment of the present invention provides a blade 400 made by the above-mentioned blade forming method. By reasonably adjusting the pressurized tooling unit 100, the pressurized tooling unit 100 can safely and accurately connect the web 450 to the blade shell, prevent damage to the web 450, improve the quality of the formed blade 400, and improve the manufacturing efficiency and quality of the blade 400. Therefore, it is easy to promote and apply.

[0095] It should be understood that the terms "first", "second", etc., and other relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the invention described herein, for example, can be operated or arranged in a sequence other than those described herein or otherwise.

[0096] The present invention may be implemented in other specific forms without departing from its spirit and essential characteristics. Therefore, the current embodiments are considered to be illustrative rather than restrictive in all aspects, the scope of the present invention is defined by the appended claims rather than the above description, and all changes that fall within the meaning and equivalents of the claims are included in the scope of the present invention. In addition, different technical features appearing in different embodiments may be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other variations of the disclosed embodiments based on a study of the drawings, the specification and the claims.

Claims

1. A pressurized tooling monomer, characterized in that: include: The connecting frame assembly includes a first bracket; A lifting assembly is rotatably arranged on the first bracket, the lifting assembly includes a rotating frame, and a lifting member and a first positioning member group arranged on the rotating frame, the lifting member is used to cooperate with the web to lift the web, the extension direction of the rotating frame intersects with the extension direction of the first bracket, the first positioning member group includes a plurality of first positioning members arranged at intervals along the extension direction of the rotating frame, the rotating frame rotates around its own axis, and the rotating frame can drive the lifting member and the first positioning member group to rotate synchronously; A support assembly is movably arranged on the first bracket, and the support assembly includes a clamping frame and a plurality of second positioning members arranged on the clamping frame, at least some of the second positioning members are arranged opposite to the first positioning member, and there is a gap between the second positioning member and the first positioning member, and the gap is used to accommodate the web, and the clamping frame includes an open state and a locked state, in the open state, the gap between the second positioning member and the first positioning member is greater than the web assembly spacing, and in the locked state, the gap between the second positioning member and the first positioning member is less than or equal to the thickness of the body of the web; the support assembly can move along the extension direction of the first bracket to adjust the gap between the second positioning member and the first positioning member; the first positioning member includes a first roller, the axis of the first roller is parallel to the rotation axis of the rotating frame, and the second positioning member includes a second roller, the axis of the second roller intersects with the rotation axis of the rotating frame.

2. The pressurized tooling monomer according to claim 1, characterized in that: The lifting member is arranged on a side of the first positioning member group close to the first bracket, and the pressurizing tooling unit further includes: A pressing assembly, arranged on the first bracket and located between the first bracket and the lifting member, the pressing assembly comprising a pressing block, the pressing block being telescopically arranged to bond the web to the blade shell; The web comprises a connecting flange for connecting to the blade shell, and the pressing block comprises a pressing portion, the pressing portion matches the shape of the connecting flange.

3. The pressurized tooling monomer according to claim 1, characterized in that: The number of the first positioning member groups is two, and the two first positioning member groups are respectively arranged on both sides of the rotating frame; and / or the number of the supporting assemblies is two, and the two supporting assemblies are arranged opposite to each other and symmetrically with respect to the rotating frame; The second positioning member corresponds to the first positioning member one by one to form the gap.

4. The pressurized tooling monomer according to claim 1, characterized in that: The lifting assembly also includes: an adjusting member, disposed between the first positioning member and the rotating frame, and capable of adjusting the distance between the first positioning member and the rotating frame; The first roller is made of a material including polyurethane.

5. The pressurized tooling unit according to any one of claims 1 to 4, characterized in that: The second roller is made of a material including polyurethane.

6. The pressurized tooling unit according to any one of claims 1 to 4, characterized in that: The connecting frame assembly also includes two connecting arm mechanisms arranged at both ends of the first bracket, and the connecting arm mechanisms can be switched between an unfolded state and a stowed state. In the deployed state, the lifting assembly and the supporting assembly are arranged between the two connecting arm mechanisms.

7. A web assembly tool, characterized in that: include: A plurality of pressurized tooling units according to any one of claims 1 to 6; The tooling bracket is used to fix each of the pressurizing tooling units, and the tooling bracket can make the projections of each of the pressurizing tooling units along the extending direction of the tooling bracket overlap.

8. A blade forming method, characterized in that: include: Forming a shell to be assembled in a blade shell forming mold, wherein the shell to be assembled is one of a windward shell and a leeward shell of the blade; Using a lifting assembly to connect the web to each of the pressurized tooling units disposed on the tooling bracket, wherein the pressurized tooling unit is the pressurized tooling unit according to any one of claims 1 to 6; Move the second positioning member close to the web, so that the second positioning member and the first positioning member clamp the web; Aligning and connecting the web and the pressurizing tooling unit to the blade shell forming mold, so that the web is connected to the shell to be assembled; The other of the windward surface shell and the leeward surface shell is assembled with the shell to be assembled to obtain the blade.

9. The blade forming method according to claim 8, characterized in that: After the web is connected to each of the pressurizing tooling units disposed on the tooling bracket by using the lifting assembly, the blade forming method further comprises: The second positioning member is arranged away from the first positioning member so that the distance between the second positioning member and the first positioning member is greater than twice the thickness of the web.

10. The blade forming method according to claim 8, characterized in that: The windward surface shell and the leeward surface shell are connected to form a blade shell, the web includes a connecting flange for connecting to the blade shell, and using the lifting assembly to connect the web with each of the pressurized tooling units arranged on the tooling bracket includes: rotating the lifting assembly until the lifting member contacts the connecting flange of the web, and at the same time the first positioning member abuts against the surface of the web in the thickness direction.

11. The blade forming method according to claim 10, characterized in that: The pressurizing tooling unit further includes a pressing assembly, and the web and the pressurizing tooling unit are aligned and connected with the shell forming mold so that the web is connected with the shell to be assembled before the pressing assembly is debugged. The debugging of the pressing assembly includes: Rotate the lifting assembly until the lifting member and the connecting flange of the web are misaligned with each other; The hold-down assembly is moved.

Images