Die overturning tool and die overturning method

Abstract

The mold overturning tool comprises a tool body and an overturning shaft, and the tool body is provided with a first mounting site and a second mounting site; the turnover shaft is detachably arranged at the first mounting site or the second mounting site; when the turnover shaft is arranged at the first mounting site, the tool main body is used for being connected with a mold without a shell and forming a first assembly body, and the axis of the turnover shaft is collinear with the gravity center of the first assembly body; and when the overturning shaft is arranged at the second mounting site, the mold overturning tool is in a heavy load state, the tool main body is used for being connected with a mold with a shell and forming a second assembly body, and the axis of the overturning shaft and the gravity center of the second assembly body are collinear. According to the invention, the gravity center of the mold is ensured to be collinear with the axis of the overturning shaft in the working procedures of empty closing, mold drawing, mold closing and the like, so that the stable overturning of the mold is realized, and the quality defects of unbalance vibration, shell mold separation and the like possibly occurring in the operation process of the mold are avoided. The invention further discloses a mold overturning method.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade preparation, and more specifically to a mold turning tool and a mold turning method. Background Art

[0002] In the current manufacturing process of the power-enhancing blade tip components, the two key steps of empty closing and mold closing both involve the flipping operation of the upper shell mold. The current flipping technology has shortcomings, especially when flipping the mold with the shell to the side position, it is very easy to cause imbalance and vibration problems. This situation not only easily leads to separation between the shell and the mold (especially in polyester and vinyl blades), but also may cause quality problems such as misalignment of the leading and trailing edges of the molded blade tip components. These defects not only damage the overall quality of the power-enhancing blade tip components, but also lead to longer on-site operation cycles, increased rework and repair workload for workers, and thus increased production costs.

[0003] Therefore, how to reduce the occurrence of quality defects in the tip components of the power-enhancing blades has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a mold turning tool to reduce the occurrence of quality defects in the tip components of the power-enhancing blades.

[0005] Another object of the present invention is to provide a mold turning method, so as to perform mold turning by using the above-mentioned mold turning tool.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mold turning tool, comprising:

[0008] The tool body is provided with a first installation site and a second installation site;

[0009] A turning shaft, detachably arranged at the first installation position or the second installation position;

[0010] When the flip axis is set at the first installation position, the tooling body is used to connect with the mold without a shell to form a first assembly, and the axis of the flip axis is collinear with the center of gravity of the first assembly. When the flip axis is set at the second installation position, the tooling body is used to connect with the mold with a shell to form a second assembly, and the axis of the flip axis is collinear with the center of gravity of the second assembly.

[0011] Optionally, in the above-mentioned mold turning tool, the turning axis includes a light-load axis and a heavy-load axis, the light-load axis is used to be detachably connected to the first installation site, and the heavy-load axis is used to be detachably connected to the second installation site; or,

[0012] The flip axis includes a universal axis, and the universal axis is used to be detachably connected to the first mounting site and the second mounting site respectively.

[0013] Optionally, in the above-mentioned mold turning tool, a first threaded hole or a first insertion hole used as the first installation site is provided on the tool body, and the turning shaft is used to be threadedly connected to the first threaded hole and plug-connected to the first insertion hole;

[0014] The tool body is provided with a second threaded hole or a second insertion hole used as the second installation site, and the flip shaft is used to be threadedly connected to the second threaded hole and insertedly connected to the second insertion hole.

[0015] Optionally, in the above-mentioned mold turning tool, the tool body has a first connecting part and a second connecting part, the first connecting part is used to be arranged and connected to the leading edge side of the mold, and the second connecting part is used to be arranged and connected to the trailing edge side of the mold.

[0016] Optionally, in the above-mentioned mold turning tool, the tool body is used to be welded or bolted to the mold.

[0017] A mold flipping method, used for flipping the mold by using the above-mentioned mold flipping tool, comprises the steps of:

[0018] A mold connection, connecting the tooling body and the mold without the shell;

[0019] Empty closing and debugging, installing the flip shaft at the first installation position, and forming the first assembly, and flipping the first assembly around the axis of the flip shaft to perform empty closing and demolding of the mold;

[0020] Mold closing, the mold without the housing is assembled into a mold with the housing, the flip shaft is installed at the second installation position to form the second assembly, and the second assembly is flipped around the axis of the flip shaft to close the mold;

[0021] The mold is demolded, the flip shaft is installed at the first installation position, and the first assembly is formed, and the first assembly is flipped around the axis of the flip shaft to perform mold demolding.

[0022] Optionally, in the above-mentioned mold flipping method, the flipping shaft is embedded or threadedly fitted with the first installation site;

[0023] The flip shaft is fitted or threadedly fitted with the second installation site.

[0024] Optionally, in the above-mentioned mold flipping method, the empty closing debugging step is specifically to tighten the flip shaft thread at the first installation position to form the first assembly, and flip the first assembly around the axis of the flip shaft;

[0025] The mold demoulding step specifically includes screwing the flip shaft threadedly at the first installation position to form the first assembly, and flipping the first assembly around the axis of the flip shaft.

[0026] Optionally, in the above-mentioned mold flipping method, the mold closing step is specifically to tighten the flip shaft thread at the second installation position and form the second assembly, so that the second assembly is flipped around the axis of the flip shaft.

[0027] Optionally, in the above-mentioned mold flipping method, the mold connecting step is specifically to connect the tooling body with the mold without a shell, and make the first connecting part of the tooling body correspond to the leading edge side position of the mold, and the second connecting part corresponds to the trailing edge side position of the mold.

[0028] The mold flipping tool provided by the present invention includes a tool body and a flipping axis, wherein the tool body is provided with a first installation position and a second installation position and is used to be connected to the mold; the flipping axis is detachably arranged at the first installation position or the second installation position; when the flipping axis is arranged at the first installation position, the mold flipping tool is in a light-load state, the tool body is used to be connected to the mold without a shell and form a first assembly, and the axis of the flipping axis is collinear with the center of gravity of the first assembly, so as to perform the empty closing debugging process and the mold demolding process, and flip the upper shell mold without the shell; when the flipping axis is arranged at the second installation position, the mold flipping tool is in a heavy-load state, the tool body is used to be connected to the mold with a shell and form a second assembly, and the axis of the flipping axis is collinear with the center of gravity of the second assembly, so as to perform the mold closing step and flip the upper shell mold with the shell.

[0029] Compared with the prior art, the mold flipping tooling provided by the present invention realizes the conversion of the mold flipping tooling between a light-load state and a heavy-load state by connecting the flipping axis to the first installation position and the second installation position of the tooling body respectively. This design ensures that in key processes such as empty closing debugging, mold demolding and mold closing, the center of gravity of the mold is precisely collinear with the axis of the flipping axis, thereby realizing a smooth flipping of the mold and avoiding quality defects such as unbalanced vibration, shell demolding, and front and rear edge misalignment that may occur in the mold during operation, significantly improving the safety performance of on-site operations, reducing production costs, and optimizing overall production efficiency.

[0030] The mold flipping method provided by the present invention is used to flip the mold through the above-mentioned mold flipping tooling, including a mold connecting step, an empty closing and debugging step, a mold closing step and a mold demolding step.

[0031] The mold connection step is specifically to connect the tooling body and the mold without a shell; the empty closing debugging step is specifically to install the flip shaft at the first installation position of the tooling body, and form a first assembly, so that the first assembly is flipped around the axis of the flip shaft to perform mold empty closing and empty closing demolding. The mold closing step is specifically to form a mold with a shell from the mold without a shell, install the flip shaft at the second installation position, and form a second assembly, so that the second assembly is flipped around the axis of the flip shaft to perform mold closing. The mold demolding step is specifically to install the flip shaft at the first installation position, and form a first assembly, so that the first assembly is flipped around the axis of the flip shaft to perform mold demolding.

[0032] Compared with the prior art, the mold flipping method provided by the present invention can keep the mold in a stable center of gravity balance state during the entire flipping and transportation process by installing the flip shaft at the first installation position of the tooling body for empty closing debugging and demolding; by installing the flip shaft at the second installation position of the tooling body for mold closing, the mold with the shell can keep the center of gravity in a stable balance state during the entire flipping and transportation process, avoiding the occurrence of defects such as shell separation and mold misalignment. The mold flipping method disclosed by the present invention greatly reduces the occurrence of quality defects of the blade tip parts of the power-enhancing blade, improves the safety of on-site operations, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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.

[0034] Figure 1 It is a flow chart of the mold flipping method disclosed in an embodiment of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the mold turning tooling disclosed in an embodiment of the present invention in a light-load state;

[0036] Figure 3 It is a structural schematic diagram of the mold turning tooling disclosed in an embodiment of the present invention in a heavy-load state.

[0037] Among them, 100 is the tool body, 101 is the first installation site, 102 is the second installation site, 110 is the first connection part, 120 is the second connection part, and 200 is the flip axis. DETAILED DESCRIPTION

[0038] The core of the invention is to disclose a mold turning tool to reduce the occurrence of quality defects of the tip parts of the power-enhancing blade.

[0039] Another object of the present invention is to provide a mold turning method, so as to perform mold turning by using the above-mentioned mold turning tool.

[0040] The following embodiments are described with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention contents described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions to the inventions described in the claims. It should be noted that, for ease of description, only the parts related to the inventions are shown in the accompanying drawings. The embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] Combination Figure 2 and Figure 3 The mold flipping tool disclosed in the present invention includes a tool body 100 and a flip shaft 200. The tool body 100 is provided with a first installation site 101 and a second installation site 102, and is used to connect with the mold; the flip shaft 200 is detachably arranged at the first installation site 101 or the second installation site 102; when the flip shaft 200 is arranged at the first installation site 101, the mold flipping tool is in a light-load state, the tool body 100 is used to connect with the mold without a shell and form a first assembly, and the axis of the flip shaft 200 is collinear with the center of gravity of the first assembly, so as to perform an empty closing debugging process and a mold demolding process, and flip the upper shell mold without a shell; when the flip shaft 200 is arranged at the second installation site 102, the mold flipping tool is in a heavy-load state, the tool body 100 is used to connect with the mold with a shell and form a second assembly, and the axis of the flip shaft 200 is collinear with the center of gravity of the second assembly, so as to perform a mold closing step and flip the upper shell mold with a shell.

[0042] Among them, "(upper shell) mold without shell" refers to the state that there is no blade shell layer laid in the mold, and only contains the mold itself. This state is suitable for mold preparation, such as mold pre-installation, debugging, blade component demoulding and loading and unloading of transport vehicles, etc.; "(upper shell) mold with shell" refers to the state that the blade shell layer has been laid in the mold after the mold is installed during the blade manufacturing process, and the weight of the mold is significantly increased. It is mainly used in the process of blade and component molding and bonding. It can be understood by those skilled in the art that the blade shell layer refers to one or more layers of materials laid inside the mold to form the blade structure. These materials usually include reinforcing materials (such as glass fiber, carbon fiber, etc.) and resins (such as epoxy resin, polyester resin, etc.), which are laid according to the design requirements of the blade to form the shell structure of the blade. There is an offset between the center of gravity of the (upper shell) mold without shell and the (upper shell) mold with shell. The present invention adapts to the position change of the center of gravity of the mold by setting the flip axis 200 at the first installation position 101 and the second installation position 102 respectively, so as to ensure the stability of the mold flipping process. Specifically, the first installation position 101 and the second installation position 102 can be obtained according to pre-calculation. In addition, the mold turning tool disclosed in the present invention is used to be installed at the blade root of the mold, and the existing tooling structure of connecting a rotating shaft at the blade tip of the mold can be retained at the blade tip of the mold to reduce costs.

[0043] Compared with the prior art, the mold flipping tool disclosed in the present invention realizes the transformation of the mold flipping tool between the light load state and the heavy load state by connecting the flipping shaft 200 to the first installation position 101 and the second installation position 102 of the tool body 100 respectively. This design ensures that in key processes such as empty closing and debugging, mold demolding and mold closing, the center of gravity of the mold is precisely collinear with the axis of the flipping shaft 200, thereby realizing the smooth flipping of the mold, avoiding the quality defects such as unbalanced vibration, shell demolding, front and rear edge misalignment of the mold that may occur during the operation of the mold, significantly improving the safety performance of on-site operations, reducing production costs, and optimizing overall production efficiency. The mold flipping tool disclosed in the present invention can be specifically used for the flipping of power-enhancing blade tip molds and small leaf molds below 20 meters.

[0044] In some embodiments, the flip axis 200 includes only one universal axis, which can be detachably connected to the first mounting site 101 and the second mounting site 102 respectively to perform mold flipping, and has a simple structure and is easy to install. In other embodiments, the flip axis 200 includes a light-load axis and a heavy-load axis, the light-load axis is used to be detachably connected to the first mounting site 101, and to perform mold emptying and mold demolding; the heavy-load axis is used to be detachably connected to the second mounting site 102, and is used to perform mold closing. The structures of the light-load axis and the heavy-load axis are different, and are used to adjust the position of the center of gravity of the first assembly and the second assembly in the light-load state and the heavy-load state, respectively.

[0045] In a specific embodiment disclosed in the present invention, a first threaded hole or a first insertion hole is provided on the tooling body 100 for serving as a first installation site 101, and a flip shaft 200 is used for being threadedly connected to the first threaded hole and being plug-connected to the first insertion hole; a second threaded hole or a second insertion hole is provided on the tooling body 100 for serving as a second installation site 102, and the flip shaft 200 is used for being threadedly connected to the second threaded hole and being plug-connected to the second insertion hole, with a simple structure and convenient assembly and disassembly.

[0046] The tooling body 100 and the mold can be an integrated structure or a split structure. In order to ensure reliable connection with the mold, the tooling body 100 has a first connection portion 110 and a second connection portion 120. The first connection portion 110 of the tooling body 100 is used to be arranged and connected to the front edge side of the mold, and the second connection portion 120 of the tooling body 100 is used to be arranged and connected to the rear edge side of the mold. Specifically, the connection method between the tooling body 100 and the mold includes but is not limited to welding connection, bolt connection, threaded connection, and plug-in connection, etc., to ensure efficient docking and stable combination between the tooling body 100 and the mold.

[0047] In a specific implementation process, when the mold is closed and released during the production of small blades and blade tip parts, the flip shaft 200 is installed on the first installation position 101, and the upper shell empty mold is lifted by a crane or a gantry crane, and then the mold is flipped around the axis of the flip shaft 200. During the process, the front and rear edges of the mold are balanced and not prone to vibration and other dangers; when closing the mold, the flip shaft 200 is installed on the second installation position 102, and the upper shell with the shell is lifted by a crane or a gantry crane. The mold is flipped to be bonded to the lower shell. During the process, the front and rear edges of the mold are balanced and not prone to imbalance vibration and defects such as upper shell separation and front and rear edge misalignment caused by the above. Among them, the specific lifting position and lifting method of the crane or gantry crane and the mold belong to the prior art and will not be repeated here.

[0048] Combination Figure 1-Figure 3 The mold flipping method disclosed in the present invention is used to flip the mold through the above-mentioned mold flipping tool, comprising the steps of:

[0049] S10, mold connection;

[0050] Connecting the tooling body 100 to the mold without the housing;

[0051] S20, air-close debugging;

[0052] The flip shaft 200 is installed at the first installation position 101 of the tooling body 100 to form a first assembly, and the first assembly is flipped around the axis of the flip shaft 200 to perform mold empty closing and empty closing demolding. The mold in this step is specifically an upper shell empty mold (an upper shell mold without a shell), which can be lifted and flipped by a crane or a gantry crane. During the process, since the center of gravity of the mold is colinear with the axis of the flip shaft 200, the front and rear edges of the mold are balanced and are not prone to vibration and other dangers.

[0053] S30, mold closing;

[0054] The mold without the shell is assembled into a mold with the shell, and the flip shaft 200 is installed at the second installation position 102 to form a second assembly, and the second assembly is flipped around the axis of the flip shaft 200 to close the mold. The mold in this step is an upper shell re-mold with a shell (upper shell mold with a shell), and the upper shell re-mold can be lifted by a crane or a gantry crane and flipped to be bonded to the lower shell mold. During the process, the front and rear edges of the upper shell mold are balanced and it is not easy to have unbalanced vibration and defects such as upper shell separation and front and rear edge misalignment caused by it.

[0055] S40, demoulding the mold;

[0056] The flip shaft 200 is installed at the first installation position 101 to form a first assembly, and the first assembly is flipped around the axis of the flip shaft 200 to perform mold demolding. The mold in this step is specifically an upper shell empty mold (an upper shell mold without a shell), which can be lifted and flipped by a crane or a gantry crane. During the process, since the center of gravity of the mold is colinear with the axis of the flip shaft 200, the front and rear edges of the mold are balanced and are not prone to vibration and other dangers.

[0057] Compared with the prior art, the mold flipping method disclosed in the present invention can keep the mold in a stable center of gravity balance state during the entire flipping and transportation process by installing the flip shaft 200 at the first installation position 101 of the tooling body 100 for air closing debugging and demolding; by installing the flip shaft 200 at the second installation position 102 of the tooling body 100 for mold closing, the mold with the shell can keep a stable center of gravity balance state during the entire flipping and transportation process, avoiding the occurrence of defects such as shell separation and mold misalignment. The mold flipping method disclosed in the present invention greatly reduces the occurrence of quality defects of the tip parts of the power-enhancing blade, improves the safety of on-site operations, and reduces production costs.

[0058] Among them, the flip shaft 200 and the tooling body 100 can be connected by means of threading, plugging and pulling. Specifically, the flip shaft 200 and the first mounting site 101 can be fitted or threaded; the flip shaft 200 and the second mounting site 102 can be fitted or threaded. In some embodiments, the flip shaft 200 is detachably connected to the first mounting site 101 through a pin, and is detachably connected to the second mounting site 102 through a pin. In other embodiments, the two flip shafts 200 can be welded and fixed to the first mounting site 101 and the second mounting site 102 of the two tooling bodies 100, respectively, and different tooling bodies 100 are selected in different steps to be connected to the mold for flipping operations to avoid mutual influence between the two flip shafts.

[0059] In a specific embodiment disclosed in the present invention, S20 specifically includes screwing the flip shaft 200 at the first installation position 101 to form a first assembly, so that the first assembly is flipped around the axis of the flip shaft 200; S40 specifically includes screwing the flip shaft 200 at the first installation position 101 to form a first assembly, so that the first assembly is flipped around the axis of the flip shaft 200. S30 specifically includes screwing the flip shaft 200 at the second installation position 102 to form a second assembly, so that the second assembly is flipped around the axis of the flip shaft 200. The threaded connection scheme has a simple structure, convenient production, and low cost.

[0060] In order to ensure reliable connection with the mold, the mold connection step is specifically to connect the tooling body 100 with the mold without a shell, and make the first connection part 110 of the tooling body 100 correspond to the leading edge side position of the mold, and the second connection part 120 of the tooling body 100 corresponds to the trailing edge side position of the mold.

[0061] The mold turning tool and mold turning method disclosed in the present invention effectively avoid dangerous operations such as oblique pulling and twisting that may occur when using lifting equipment such as a crane, and significantly reduce the risk of on-site safety accidents; solve the imbalance and vibration problems that are prone to occur during the flipping of the mold with a shell, and significantly reduce the probability of quality defects such as imbalance vibration, shell demolding, and front and rear edge misalignment, thereby improving the overall molding quality, reducing the raw material and labor costs required for rework and repair, and achieving the effect of reducing costs and increasing efficiency.

[0062] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present invention. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A mold turning tool, characterized in that: include: A tool body (100) is provided with a first installation site (101) and a second installation site (102); A turning shaft (200) detachably arranged at the first installation site (101) or the second installation site (102); When the flip axis (200) is arranged at the first installation position (101), the tooling body (100) is used to connect with a mold without a shell to form a first assembly, and the axis of the flip axis (200) is collinear with the center of gravity of the first assembly; when the flip axis (200) is arranged at the second installation position (102), the tooling body (100) is used to connect with a mold with a shell to form a second assembly, and the axis of the flip axis (200) is collinear with the center of gravity of the second assembly.

2. The mold turning tool as claimed in claim 1, characterized in that: The flip shaft (200) comprises a light-load shaft and a heavy-load shaft, the light-load shaft being used to be detachably connected to the first mounting site (101), and the heavy-load shaft being used to be detachably connected to the second mounting site (102); or, The flip axis (200) comprises a universal axis, and the universal axis is used to be detachably connected to the first installation site (101) and the second installation site (102) respectively.

3. The mold turning tool according to claim 1, characterized in that: The tool body (100) is provided with a first threaded hole or a first insertion hole used as the first installation site (101), and the flip shaft (200) is used to be threadedly connected to the first threaded hole and insertedly connected to the first insertion hole; The tool body (100) is provided with a second threaded hole or a second insertion hole used as the second installation site (102), and the flip shaft (200) is used to be threadedly connected to the second threaded hole and to be insertedly connected to the second insertion hole.

4. The mold turning tool as claimed in claim 1, characterized in that: The tooling body (100) comprises a first connection portion (110) and a second connection portion (120), wherein the first connection portion (110) is used to be arranged opposite to and connected to the front edge side of the mold, and the second connection portion (120) is used to be arranged opposite to and connected to the rear edge side of the mold.

5. The mold turning tool as claimed in claim 1, characterized in that: The tool body (100) is used to be connected to the mold by welding or bolts.

6. A mold flipping method, characterized in that: The method for performing mold turning by using the mold turning tool as claimed in any one of claims 1 to 5 comprises the steps of: A mold connection, connecting the tooling body (100) and a mold without a shell; Empty closing and debugging, installing the flip axis (200) at the first installation position (101), forming the first assembly, and flipping the first assembly around the axis of the flip axis (200) to perform empty closing and demolding of the mold; Mould closing, the mould without the housing is assembled into a mould with the housing, the flip axis (200) is installed at the second installation position (102), and the second assembly is formed, and the second assembly is flipped around the axis of the flip axis (200) to close the mould; The mold is demolded, the flip axis (200) is installed at the first installation position (101), and the first assembly is formed, and the first assembly is flipped around the axis of the flip axis (200) to perform mold demolding.

7. The mold turning method according to claim 6, characterized in that: The flip shaft (200) is fitted or threadedly fitted with the first installation site (101); The flip shaft (200) is fitted or threadedly fitted with the second installation site (102).

8. The mold turning method according to claim 6, characterized in that: The empty closing debugging step specifically comprises screwing the flip shaft (200) at the first installation position (101) to form the first assembly, and flipping the first assembly around the axis of the flip shaft (200); The mold demoulding step specifically includes screwing the flip shaft (200) at the first installation position (101) to form the first assembly, and causing the first assembly to flip around the axis of the flip shaft (200).

9. The mold turning method according to claim 6, characterized in that: The mold closing step specifically comprises screwing the flip shaft (200) at the second installation position (102) to form the second assembly, and causing the second assembly to flip around the axis of the flip shaft (200).

10. The mold turning method according to claim 6, characterized in that: The mold connecting step specifically comprises connecting the tool body (100) to a mold without a shell, and making the first connecting portion (110) of the tool body (100) correspond to the front edge side position of the mold, and the second connecting portion (120) correspond to the rear edge side position of the mold.

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