Method, device, equipment and system for detecting wind power blade mold

Abstract

The application discloses a kind of detection method, device, equipment and system of wind power blade mould, belong to wind power generation technical field.The application is respectively arranged on first mould assembly and second mould assembly by transmitting device and receiving device, electromagnetic signal is transmitted using transmitting device, and the displacement offset between first mould assembly and second mould assembly in the process of closing mould can be automatically identified according to the current induced by receiving device, the displacement offset of first mould assembly and second mould assembly is identified in time, and moreover, electromagnetic signal cannot be influenced by the covering of other materials, that is, the position of first mould assembly and second mould assembly can be detected in real time during blade manufacturing process in the embodiment, so that the quality of blade and the production efficiency of blade can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power generation, in particular to a detection method, device, equipment and system for a wind power blade mold. BACKGROUND

[0002] In the production process of a wind power blade, after the bonding process of the blade mold is completed, when the first mold assembly and the second mold assembly are closed, the first mold assembly and the second mold assembly may be offset, but due to the limitation of visualization, the offset between the first mold assembly and the second mold assembly cannot be detected. During the closing process, if the first mold assembly and the second mold assembly are offset, not only the quality of the blade will be affected, but also the production efficiency of the blade will be affected.

[0003] At present, the blade is still detected or repaired after the blade is demolded, which will still affect the quality and production efficiency of the blade. SUMMARY

[0004] The present application provides a detection method, device, equipment and system for a wind power blade mold, which can timely identify the offset of the first mold assembly and the second mold assembly during the closing process of the first mold assembly and the second mold assembly, thereby improving the quality of the blade and the production efficiency of the blade.

[0005] In a first aspect, the present application provides a detection method for a wind power blade mold, the mold comprising a first mold assembly and a second mold assembly, a receiving device is arranged on the outer wall of the flange of the first mold assembly, a transmitting device is arranged on the outer wall of the flange of the second mold assembly, and the positions of the transmitting device and the receiving device correspond to each other; the detection method comprises the following steps:

[0006] During the closing process of the first mold assembly and the second mold assembly, the transmitting device is controlled to transmit a first electromagnetic signal;

[0007] A first induced current output by the receiving device under the action of the first electromagnetic signal is received;

[0008] According to the first induced current and a first correlation relationship, a target displacement offset of the first mold assembly relative to the second mold assembly is determined, and the first correlation relationship is used to represent the relationship between different displacement offsets and induced currents;

[0009] In the case where the target displacement offset is greater than a corresponding offset threshold, a prompt information is output, and the prompt information is used to prompt that the first mold assembly is offset relative to the second mold assembly.

[0010] In a second aspect, the application provides a detection device for a wind turbine blade mold, the mold comprising a first mold component and a second mold component, a receiving device is arranged on an outer wall of a flange of the first mold component, and a transmitting device is arranged on an outer wall of a flange of the second mold component, the transmitting device and the receiving device correspond to each other in position.

[0011] The detection device for the wind turbine blade mold comprises:

[0012] A control module is configured to control the transmitting device to transmit a first electromagnetic signal during a process of closing the first mold component and the second mold component.

[0013] A receiving module is configured to receive a first induced current output by the receiving device under the action of the first electromagnetic signal.

[0014] A determining module is configured to determine a target displacement offset of the first mold component relative to the second mold component according to the first induced current and a first correlation relationship, the first correlation relationship being used to represent a relationship between different displacement offset and induced current.

[0015] An output module is configured to output a prompt information when the target displacement offset is greater than a corresponding offset threshold, the prompt information being used to prompt that the first mold component is offset relative to the second mold component.

[0016] In a third aspect, the application provides a detection device for a wind turbine blade mold, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0017] In a fourth aspect, the application provides a detection system for a wind turbine blade mold, comprising the detection device for the wind turbine blade mold according to the third aspect, and a transmitting device and a receiving device.

[0018] The transmitting device is arranged on an outer wall of a flange of the second mold component of the blade mold, and the receiving device is arranged on an outer wall of a flange of the first mold component of the blade mold, the transmitting device and the receiving device corresponding to each other in position.

[0019] In this application, a receiving device is provided on the outer wall of the flange of the first mold assembly of the blade mold, and a transmitting device is provided on the outer wall of the flange of the second mold assembly. The transmitting device and the receiving device are positioned vertically corresponding. During the mold closing process of the first mold assembly and the second mold assembly, the transmitting device is controlled to emit a first electromagnetic signal; a first induced current output by the device under the action of the first electromagnetic signal is received; based on the first induced current and a first correlation relationship, a target displacement offset of the first mold assembly relative to the second mold assembly is determined, the first correlation relationship being used to characterize the relationship between different displacement offsets and the induced current; if the target displacement offset is greater than the corresponding offset threshold, a prompt message is output, the prompt message being used to indicate that the first mold assembly has shifted relative to the second mold assembly. In other words, this embodiment sets a transmitting device and a receiving device on the first mold assembly and the second mold assembly respectively. The transmitting device emits electromagnetic signals, and the receiving device can automatically identify the displacement offset between the first mold assembly and the second mold assembly during the mold closing process based on the current sensed by the receiving device. This timely identification of the displacement offset between the first mold assembly and the second mold assembly is achieved. Moreover, the electromagnetic signals are not affected by the covering of other materials. In other words, this embodiment can detect the position of the first mold assembly and the second mold assembly in real time during the blade manufacturing process, thereby improving blade quality and blade production efficiency. Attached Figure Description

[0020] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0021] Figure 1 A flowchart illustrating a method for detecting a wind turbine blade mold, provided in an embodiment of this application;

[0022] Figure 2 A front view of a blade mold provided in an embodiment of this application;

[0023] Figure 3 A top view of a launching device provided in an embodiment of this application;

[0024] Figure 4 A flowchart illustrating another method for detecting wind turbine blade molds provided in this application embodiment;

[0025] Figure 5 An axial view of a blade mold provided in an embodiment of this application;

[0026] Figure 6 A left view of a blade mold provided in an embodiment of this application;

[0027] Figure 7 A schematic diagram of the structure of a testing device for a wind turbine blade mold provided in an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the structure of a testing device for a wind turbine blade mold provided in an embodiment of this application.

[0029] The accompanying drawings are not necessarily drawn to scale. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0032] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0035] In this application, "multiple" means two or more (including two).

[0036] To better understand this application, the terms used in this application will be explained below:

[0037] Wind turbine blades: Components of wind turbine generators. Each surface of the blade is designed as an airfoil. From the blade root to the blade tip, its thickness, twist angle and chord length have a certain distribution pattern, resulting in a good aerodynamic shape.

[0038] Wind turbine blade mold: The main equipment used in the production of wind turbine blades.

[0039] As described in the background section, blade molds are prone to misalignment during mold closing, affecting blade quality. However, due to limitations in visualization, users cannot visually inspect the offset between the upper and lower molds during the mold closing process. Currently, blades are mainly inspected or repaired after demolding, resulting in low production efficiency and low blade quality.

[0040] Therefore, this application provides a method, device, equipment and system for detecting wind turbine blade molds. During the mold closing process, the offset between the upper and lower molds can be identified in a timely manner, thereby improving the quality and production efficiency of the blades.

[0041] The following description, in conjunction with the accompanying drawings and specific embodiments, illustrates the detection method, apparatus, equipment, and system for wind turbine blade molds provided in this application.

[0042] Figure 1 This is a flowchart illustrating a method for detecting wind turbine blade molds according to an embodiment of this application. This method can be applied to electronic devices with data processing capabilities, such as tablets, laptops, servers, and personal computers. It can be applied to any blade model, thus having a wide range of applications.

[0043] like Figure 1 As shown, the inspection method for this wind turbine blade mold may include the following steps:

[0044] S110. During the process of closing the first mold assembly and the second mold assembly, the launching device is controlled to emit a first electromagnetic signal.

[0045] S120, Receive the first induced current output by the receiving device under the action of the first electromagnetic signal.

[0046] S130. Determine the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation relationship.

[0047] The first correlation is used to characterize the relationship between different displacement offsets and induced currents.

[0048] S140. If the target displacement offset is greater than the corresponding offset threshold, output a prompt message.

[0049] The prompt message is used to indicate that the first mold assembly has shifted relative to the second mold assembly.

[0050] In this embodiment, a transmitting device and a receiving device are respectively set on the first mold assembly and the second mold assembly. The transmitting device emits electromagnetic signals, and the receiving device can automatically identify the displacement offset between the first mold assembly and the second mold assembly during the mold closing process based on the current sensed by the receiving device. This timely identification of the displacement offset between the first mold assembly and the second mold assembly is achieved. Moreover, the electromagnetic signals are not affected by the covering of other materials. In other words, this embodiment can detect the position of the first mold assembly and the second mold assembly in real time during the blade manufacturing process, thereby improving blade quality and blade production efficiency.

[0051] The above steps are explained in detail below:

[0052] In S110, the first mold assembly and the second mold assembly are components of the blade mold. For example, the first mold assembly and the second mold assembly can respectively represent the upper mold and the lower mold of the blade mold. In actual application, the first mold assembly can be the upper mold or the lower mold of the blade mold. When the first mold assembly is the upper mold of the blade mold, the second mold assembly is the lower mold of the blade mold. When the first mold assembly is the lower mold of the blade mold, the second mold assembly is the upper mold of the blade mold.

[0053] A receiving device is provided on the outer wall of the flange of the first mold assembly, and a transmitting device is provided on the outer wall of the flange of the second mold assembly. Both the receiving device and the transmitting device are electromagnetic induction devices. The electromagnetic induction device can be used normally even during the mold layup process and can also detect quality defects, thereby improving the universality of the method and no longer being limited to a single scenario.

[0054] Figure 2 An exemplary front view of a blade mold is provided. Figure 2 Taking a first mold assembly 201 as the upper mold and a second mold assembly 202 as the lower mold as an example, a receiving device 203 is disposed on the outer wall of the flange of the first mold assembly 201, and a transmitting device 204 is disposed on the outer wall of the flange of the second mold assembly 202. In some embodiments, the transmitting device 204 and the receiving device 203 are close to the mold frustum 205. The transmitting device 204 and the receiving device 203 are simply firmly bonded to their respective mold assemblies. The positions of the transmitting device 204 and the receiving device 203 are vertically corresponding.

[0055] In practical applications, multiple receiving and transmitting devices can be set in the first and second mold assemblies respectively. Taking the receiving devices as an example, each receiving device is positioned differently on the first mold assembly, thereby enabling detection at multiple locations on the blade mold and improving blade quality. When there are multiple receiving devices, the spacing between adjacent receiving devices can be the same or different. The specific number of receiving devices can be set according to the actual size of the blade mold and production requirements. For example, if the blade mold is larger and longer axially, more receiving devices can be set, and vice versa. Furthermore, for blade molds of the same size, if the quality requirements for blade mold A are higher than those for blade mold B, the number of receiving devices set on blade mold A can be greater than the number of receiving devices set on blade mold B. Generally, a maximum of 1000 receiving devices can be set.

[0056] The first electromagnetic signal can be an alternating current signal, which can generate a magnetic field. When at least one of the first mold assembly and the second mold assembly is offset, the electromagnetic coil of the receiving device can generate an induced current or an induced electromotive force under the action of the magnetic field. Based on the induced current or induced electromotive force, the relative displacement offset of the first mold assembly and the second mold assembly can be determined.

[0057] For example, when there are multiple transmitting devices, the first electromagnetic signals emitted by each transmitting device may be the same or different.

[0058] For example, the wind turbine blade mold testing equipment can automatically control the transmitting device to emit a first electromagnetic signal during the mold assembly process of the first mold assembly and the second mold assembly. Alternatively, it can control the transmitting device to emit the first electromagnetic signal upon receiving a user's transmission command during the mold assembly process of the first mold assembly and the second mold assembly. The transmission command may be, for example, a voice command, a touch command to the wind turbine blade mold testing equipment, etc.

[0059] In S120, the first induced current is the current generated by the receiving device under the magnetic field formed by the first electromagnetic signal. In practical applications, induced electromotive force can also be used.

[0060] Under normal circumstances, if the first mold assembly and the second mold assembly do not shift, the first induced current can be a reference value; ideally, the reference value can be 0. If the first mold assembly shifts relative to the second mold assembly, the first induced current will change, and will dynamically change with the amount of shift.

[0061] In S130, the first correlation is used to characterize the relationship between different displacement offsets and induced currents. The first correlation can be a functional relationship or a model relationship, and it can be pre-established. For example, the positions of the first and second mold assemblies can be adjusted to optimal positions, which could be positions where the blade quality is optimal. In this case, both the first and second mold assemblies are in ideal positions without any offset. The induced current output by the receiving device can then be read, and the first mold can be controlled to offset axially by a certain distance. The induced current output by the receiving device can then be read again, and so on, to obtain multiple sets of offset distances and induced currents. Based on these multiple sets of offset distances and induced currents, the first correlation between the displacement offset and the induced current can be obtained.

[0062] In practical applications, if a set of data is abnormal, for example, if the read induced current does not match the actual displacement offset, the set of data can be discarded or corrected to ensure data stability.

[0063] The target displacement offset can be the displacement offset of one mold component relative to another mold component. For example, it can be the displacement offset of the upper mold relative to the lower mold, or the displacement offset of the lower mold relative to the upper mold. Exemplarily, the target displacement offset can include at least one of the following: axial displacement offset and chordal displacement offset.

[0064] By combining the first correlation and the first induced current, the offset corresponding to the first induced current can be determined, that is, the target displacement offset of the first mold assembly relative to the second mold assembly. This enables real-time detection of the blade mold, unaffected by processes such as mold closing and layup, allowing for timely detection of blade mold offsets. It eliminates the need for blade inspection or repair after demolding, significantly improving blade production efficiency.

[0065] In S140, the offset threshold is the maximum allowable offset of the first mold component relative to the second mold component at the corresponding position. In actual application, the offset threshold corresponding to the mold components at different positions can be different.

[0066] For example, an offset threshold corresponding to the position of the receiving device or the transmitting device can be obtained, thereby accurately determining whether the first mold assembly has shifted relative to the second mold assembly, and improving the accuracy of the determination result.

[0067] For example, when the target displacement offset is greater than the corresponding offset threshold, the detection equipment of the wind turbine blade mold can output a prompt message to remind the user that the first mold assembly has shifted relative to the second mold assembly and that the position of the blade mold needs to be adjusted in time.

[0068] This embodiment does not limit the output method of the prompt information. For example, the prompt information can be output through one or more methods such as voice, SMS, email, indicator light, etc. In some embodiments, the prompt information can be sent to the corresponding maintenance personnel via SMS, email, or telephone, so that the maintenance personnel can take timely measures.

[0069] For example, the prompt information may include, but is not limited to, the mold component that has shifted, the location of the shift, the difference between the target displacement and the corresponding offset threshold, and the direction of the shift. This information helps maintenance personnel quickly locate the shift position of the mold component and take timely and effective measures to improve the quality of the blades and production efficiency.

[0070] The target displacement offset includes axial displacement offset and chordal displacement offset. For example, as long as one displacement offset is greater than the corresponding offset threshold, a prompt message can be output, thereby timely detection of abnormalities in the blade mold and improvement of blade quality.

[0071] For example, when the axial displacement offset is greater than the corresponding axial offset threshold, or the chordal displacement offset is greater than the corresponding axial offset threshold, a prompt message is output.

[0072] This embodiment utilizes an electromagnetic induction device installed on the blade mold. The induced current from this device can promptly identify mold misalignment, eliminating the need for post-mold inspection or repair, thus reducing costs and improving production efficiency. Furthermore, the electromagnetic induction device is unaffected by processes such as layup and mold closing, effectively solving the problem of blade defects caused by the inability to promptly correct misalignment due to visualization limitations.

[0073] In some embodiments, the transmitting device may include N transmitting coils, the receiving device may include N receiving coils, the N transmitting coils are arranged at a first interval, the N receiving coils are arranged at a second interval, one transmitting coil corresponds to one receiving coil, and N is an integer greater than 1.

[0074] In practical applications, the transmitting and receiving devices contain the same number of electromagnetic coils. This embodiment takes an example where both the transmitting and receiving devices contain multiple electromagnetic coils. The multiple electromagnetic coils can be arranged at certain intervals; for example, the transmitting coils can be arranged at a first interval, and the receiving coils at a second interval. The first and second intervals can be the same or different. The multiple transmitting coils can form a first shape, which can be, for example, a closed shape, or a shape other than a straight line or a closed shape, such as a semi-closed shape.

[0075] Similarly, multiple receiving coils can also be formed into a second shape, and the first and second shapes can be the same or different. For example, in some embodiments, each transmitting coil can be formed into a circle, and each receiving coil can be formed into a circle. Figure 3 An exemplary schematic diagram of the arrangement of the transmitting coils 301 is provided. Figure 3 Taking a transmitting device that includes four coils, with each transmitting coil forming a circle, as an example, the receiving device is similar to the transmitting device.

[0076] The electromagnetic signals emitted by multiple transmitting coils within the same transmitting device can be the same or different. For the sake of simplifying the calculation, for example, multiple transmitting coils corresponding to the same transmitting device can emit the same electromagnetic signal, that is... Figure 3 The four transmitting coils 301 in the middle can simultaneously transmit the first electromagnetic signal.

[0077] For example, each transmitting coil can also transmit alternating current at a different hertz to ensure that each receiving coil can only receive the signal from its corresponding transmitting coil, thereby reducing interference between different coils and improving the accuracy of displacement detection results. Of course, other methods can also be used to avoid interference between different coils.

[0078] By setting up multiple transmitting coils and multiple receiving coils, not only is the flexibility of the transmitting and receiving devices increased, but the same area of ​​the mold assembly can also be detected by multiple sets of transmitting and receiving coils, thus improving the accuracy of the detection results.

[0079] To determine the target displacement offset of the first mold assembly relative to the second mold assembly. Figure 4 A flowchart of an exemplary method for inspecting a wind turbine blade mold is provided. Figure 4 and Figure 1 The difference is that, Figure 1 S130 in the text can be further refined into Figure 4 S410-S420 in the series.

[0080] S410. Determine the displacement offset of the receiving coil relative to the corresponding transmitting coil based on the first induced current output by each receiving coil and the first correlation relationship.

[0081] Each receiving coil can induce a corresponding current under the magnetic field formed by the corresponding transmitting coil. Based on this current, the displacement offset of each receiving coil relative to the corresponding transmitting coil can be determined.

[0082] For example, when the electromagnetic signals emitted by each transmitting coil are the same, the current induced in the receiving coil of two transmitting coils located in the same direction will change when the blade mold shifts. Both the transmitting coil and the receiving coil are... Figure 3Taking the arrangement as an example, when the first mold assembly is offset to the left along the axial direction relative to the second mold assembly, the current induced in the receiving coil corresponding to the transmitting coil A1 is greater than the current induced in the receiving coil corresponding to the transmitting coil A3. Therefore, the offset direction of the first mold assembly relative to the second mold assembly can be preliminarily determined based on the magnitude of the current induced in each receiving coil.

[0083] The displacement offset can be determined based on the current difference induced by the receiving coils in corresponding directions. The displacement offset corresponding to the current difference can be determined first by combining the induced current of each receiving coil with the first correlation relationship, and then the difference between the two displacement offsets is calculated to obtain the displacement offset of the mold assembly in that direction. The corresponding direction here can include two directions passing through the center of the shape formed by the transmitting coil, such as axial and chordal directions. For example, the corresponding direction could be through... Figure 3 The two directions of the center point O.

[0084] S420. Determine the target displacement offset of the first mold assembly relative to the second mold assembly based on the displacement offset of each receiving coil.

[0085] For example, the position of each receiving coil after offset can be obtained by combining the original position of each receiving coil and the displacement offset of each receiving coil. Similarly, the position of each transmitting coil after offset can be obtained. Then, based on the position of each receiving coil after offset and the position of each transmitting coil after offset, the displacement offset of the first mold assembly and the second mold assembly in this region can be obtained by combining the Kabsch algorithm.

[0086] This embodiment can determine the displacement offset of a single receiving coil by using the current induced by a single receiving coil, and then determine the displacement offset of the first mold assembly relative to the second mold assembly in the region by comprehensively considering the displacement offsets of multiple receiving coils. That is, it comprehensively considers the influence between multiple coils, so that the displacement offset of the mold assembly in the region can be determined more accurately.

[0087] After mold closing, there is a certain gap between the first mold assembly and the second mold assembly. That is, there is a certain distance or thickness between the parting surfaces of the first mold assembly and the second mold assembly. The thickness of the parting surface affects the magnitude of the current induced by the receiving coil. For example, the thicker the parting surface, the less electromagnetic energy the receiving coil receives, and the smaller the induced current. In order to accurately determine the displacement offset of the first mold assembly relative to the second mold assembly in a certain area, the thickness of the parting surface between the first mold assembly and the second mold assembly can be determined in advance.

[0088] Taking N transmitting coils arranged in a first shape and N receiving coils arranged in a second shape as an example, for instance, both the first and second shapes can be circles, or of course, rectangles, squares, rhombuses, etc.

[0089] At this time, the transmitting device may further include a first electromagnetic coil, and the receiving device may further include a second electromagnetic coil, wherein the first electromagnetic coil and the second electromagnetic coil may be respectively disposed within the internal regions of the first shape and the second shape. Taking a first shape and the second shape both being circular as an example, the first electromagnetic coil may be disposed at the center of the first shape, and the second electromagnetic coil may be disposed at the center of the second shape.

[0090] Still with Figure 3 For example, the first electromagnetic coil can be disposed at the central position O; that is, the transmitting device may include a plurality of transmitting coils on the outer ring and the first electromagnetic coil at the central position. Axial views of the transmitting device 204 and the receiving device 203 can be found in [reference needed]. Figure 5 In practical applications, the first electromagnetic coil can also be located in an internal region other than the center position O.

[0091] Based on this, in some embodiments, the detection method for the wind turbine blade mold may further include the following steps:

[0092] Control the first electromagnetic coil to emit the second electromagnetic signal;

[0093] Receive the second induced current output by the second electromagnetic coil under the action of the second electromagnetic signal;

[0094] Based on the second induced current and the second correlation, the actual parting surface thickness between the first mold assembly and the second mold assembly is determined. The second correlation is used to characterize the relationship between different parting surface thicknesses and the induced current.

[0095] The second electromagnetic signal here may be the same as or different from the first electromagnetic signal in the above embodiments. In some embodiments, the frequencies of the second electromagnetic signal and the first electromagnetic signal may be different, thereby avoiding interference between different electromagnetic signals and ensuring the accuracy of the detection results.

[0096] In some embodiments, when the second electromagnetic signal is exactly the same as the first electromagnetic signal, the multiple transmitting coils on the outer ring can be controlled to transmit electromagnetic signals in a time-division manner along with the first electromagnetic coil. For example, the first electromagnetic coil can be controlled to transmit the second electromagnetic signal first, the parting surface thickness between the first mold assembly and the second mold assembly can be calculated based on the current induced by the second electromagnetic coil, and then each transmitting coil can be controlled to transmit the first electromagnetic signal. Alternatively, each transmitting coil can be controlled to transmit the first electromagnetic signal first, and then the first electromagnetic coil can be controlled to transmit the second electromagnetic signal.

[0097] Different parting surface thicknesses can also correspond to different induced currents. Initially, different parting surface thicknesses can be pre-calibrated, and then the induced current generated by the second electromagnetic coil can be read. Based on the multiple parting surface thicknesses and the corresponding induced currents, a second correlation between the parting surface thickness and the induced current can be obtained.

[0098] For example, the testing equipment for wind turbine blade molds can control a first electromagnetic coil to emit a second electromagnetic signal upon receiving a user's instruction. This instruction may include, but is not limited to, voice instructions, touch instructions, and gesture instructions.

[0099] Based on the second induced current output by the second electromagnetic coil and combined with the second correlation, the actual parting surface thickness between the first mold assembly and the second mold assembly can be obtained.

[0100] For example, such as Figure 6 As shown, 601 and 602 are the surfaces on the first mold assembly and the second mold assembly, respectively, also known as the parting surfaces. The distance between the parting surfaces 601 and 602 is the parting surface thickness in the above embodiment.

[0101] This embodiment can not only detect the displacement offset of the blade mold in real time, but also detect the thickness of the parting surface between the upper and lower molds in real time, providing a basis for subsequent correction of the displacement offset.

[0102] In order to correct the displacement offset, in some embodiments, the above S130 may include the following steps:

[0103] Determine the difference between the actual parting surface thickness and the reference parting surface thickness;

[0104] The first induced current is corrected based on the difference to obtain the second induced current. When the difference is greater than 0, the second induced current is less than the first induced current, and when the difference is less than 0, the second induced current is greater than the first induced current.

[0105] Based on the second induced current and the first correlation, the target displacement offset of the first mold assembly relative to the second mold assembly is determined.

[0106] The reference parting surface thickness can be the ideal parting surface thickness. However, in the actual manufacturing of blades, factors such as manufacturing methods and offsets may cause the thickness of the parting surface in this area to change, meaning it is no longer the ideal parting surface thickness.

[0107] This embodiment can dynamically adjust the first induced current based on the difference between the actual parting surface thickness and the reference parting surface thickness to obtain the second induced current, and then obtain the target displacement offset of the first mold assembly relative to the second mold assembly based on the second induced current and the first correlation relationship.

[0108] For example, if the actual parting surface thickness increases relative to the reference parting surface thickness, meaning the parting surface thickness in that region becomes thicker, the first induced current can be appropriately reduced. Conversely, if the actual parting surface thickness decreases relative to the reference parting surface thickness, meaning the parting surface thickness in that region becomes thinner, the first induced current can be appropriately increased. The change in the first induced current is related to the thickness difference between the actual parting surface thickness and the reference parting surface thickness. For instance, a correlation between the change and the thickness difference can be established in advance based on experiments. Based on this correlation, the change in the first induced current can be obtained, and then the second induced current can be obtained, thus correcting the first induced current.

[0109] For example, the current variation corresponding to different thickness differences can also be set based on empirical values.

[0110] This embodiment can dynamically adjust the first induced current according to the parting surface thickness of the first mold assembly and the second mold assembly in the corresponding area, and then determine the displacement offset of the first mold assembly relative to the second mold assembly based on the adjusted first induced current, that is, the second induced current. The influence of the parting surface thickness on the induced current is taken into account, which improves the accuracy of the displacement offset, and thus can more accurately determine whether the first mold assembly has shifted relative to the second mold assembly.

[0111] In order to adjust the position of the blade mold in a timely manner and avoid mass loss caused by displacement, for example, the blade mold is also provided with an adjustment mechanism, the position of which corresponds to the transmitting device and the receiving device.

[0112] That is, the transmitting and receiving devices can be set in positions with adjustment mechanisms to facilitate the adjustment of the mold position.

[0113] For example, the adjustment mechanism can be provided only on the first mold assembly, or only on the second mold assembly, or both on the first and second mold assemblies. This can prevent the mold from still shifting when the adjustment mechanism on one side reaches the minimum or maximum stroke. The adjustment effect can be improved by adjusting the upper and lower adjustment mechanisms.

[0114] For example, when both the first mold assembly and the second mold assembly are provided with adjustment mechanisms, the positions of the upper and lower adjustment mechanisms may have a certain offset, or they may correspond to each other.

[0115] This embodiment does not limit the specific structure of the adjustment mechanism. As long as the position of the first mold assembly and / or the second mold assembly can be adjusted when the first mold assembly is offset relative to the second mold assembly, so that the offset of the first mold assembly relative to the second mold assembly is less than or equal to the corresponding offset threshold, it is acceptable.

[0116] For example, the adjustment mechanism may include a base, an actuator, a guide mechanism, a controller, etc., wherein the base can be fixed to the first mold assembly and / or the second mold assembly via a high-strength alloy steel flange. The actuator may include, for example, a hydraulic push rod, an electric push rod, etc., for generating mechanical movement to adjust the position of the first mold assembly and / or the second mold assembly. The guide mechanism may include, for example, a guide rail or a slider, for ensuring the accurate movement direction of the actuator and preventing the actuator from deviating, which would affect the adjustment effect of the mold assembly. The specific settings and connections of each part are not limited in this embodiment, as long as the blade mold can be corrected when it deviates.

[0117] For example, when the target displacement offset is greater than the corresponding offset threshold, the detection method for the wind turbine blade mold may further include the following steps:

[0118] Generate adjustment commands based on the target displacement offset;

[0119] Drive the adjustment mechanism according to the adjustment command, and adjust the position of the first mold assembly and / or the second mold assembly so that the displacement offset between the first mold assembly and the second mold assembly after adjustment is less than or equal to the corresponding offset threshold.

[0120] The adjustment command is used to drive the adjustment mechanism, which in turn moves the corresponding mold assembly, thereby adjusting the position of the mold assembly, reducing the offset, and improving the quality of the blade.

[0121] In this embodiment, when the first mold assembly shifts relative to the second mold assembly, the adjustment mechanism within the shift area can be used to adjust the first mold assembly and / or the second mold assembly in a timely manner, thereby improving the quality of the blades. This eliminates the need for blade inspection and maintenance after demolding, thus improving the production efficiency of the blades.

[0122] The system includes multiple receiving and transmitting devices. In some embodiments, each receiving device is disposed on the outer flange of the first mold assembly at a third interval, and each transmitting device is disposed on the outer flange of the second mold assembly at a fourth interval. Here, the third interval is the distance between two adjacent receiving devices. In practical applications, when there are three or more receiving devices, the distance between two adjacent receiving devices can be the same or different. The fourth interval is the distance between two adjacent transmitting devices. In practical applications, when there are three or more transmitting devices, the distance between two adjacent transmitting devices can be the same or different. The third and fourth intervals can be the same or different; that is, the distance between two adjacent receiving devices and the distance between two adjacent transmitting devices can be the same or different.

[0123] For example, after S130, the inspection method for the wind turbine blade mold may further include the following steps:

[0124] The target displacement offset corresponding to each position of the mold is displayed according to the preset display method.

[0125] This embodiment does not limit the specific display method. For example, different colors can be used to display the target displacement offset corresponding to different positions. For example, red can be used to indicate that the position has shifted and green can be used to indicate that the position has not shifted.

[0126] For example, the target displacement offset corresponding to each position can also be displayed by using different font sizes or linear expressions.

[0127] For example, the wind turbine blade mold detection equipment can send the target displacement offset corresponding to each position to a display device for display. This display device can be the display screen of the wind turbine blade mold detection equipment, or it can be a display device independent of the wind turbine blade mold detection equipment. In this case, the wind turbine blade mold detection equipment can communicate with the display device. Through the display device, the user can more intuitively determine the offset area of ​​the blade mold. For example, this display device can be a handheld device.

[0128] For example, the wind turbine blade mold testing equipment can send the testing results of each position of the blade mold corresponding to the blade model to the display screen for display via the SPI / I²C protocol. In actual applications, it is not limited to this protocol and data transmission can also be performed via other protocols.

[0129] It should be noted that the wind turbine blade mold detection method provided in this application embodiment can be executed by a wind turbine blade mold detection device, or a processing module within that device for executing the detection method. This application embodiment uses the wind turbine blade mold detection device executing the detection method as an example to illustrate the wind turbine blade mold detection device provided in this application embodiment.

[0130] Figure 7 This is a schematic diagram of a testing device for a wind turbine blade mold provided in an embodiment of this application. The mold includes a first mold assembly and a second mold assembly. A receiving device is provided on the outer wall of the flange of the first mold assembly, and a transmitting device is provided on the outer wall of the flange of the second mold assembly. The transmitting device and the receiving device are positioned vertically corresponding to each other.

[0131] like Figure 7 As shown, the testing device 700 for the wind turbine blade mold may include:

[0132] Control module 701 is used to control the transmitting device to emit a first electromagnetic signal during the mold closing process of the first mold assembly and the second mold assembly;

[0133] Receiver module 702 is used to receive the first induced current output by the receiving device under the action of the first electromagnetic signal;

[0134] The determining module 703 is used to determine the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation relationship. The first correlation relationship is used to characterize the relationship between different displacement offsets and the induced current.

[0135] The output module 704 is used to output a prompt message when the target displacement offset is greater than the corresponding offset threshold. The prompt message is used to indicate that the first mold assembly has been offset relative to the second mold assembly.

[0136] In this embodiment, a transmitting device and a receiving device are respectively set on the first mold assembly and the second mold assembly. The transmitting device emits electromagnetic signals, and the receiving device can automatically identify the displacement offset between the first mold assembly and the second mold assembly during the mold closing process based on the current sensed by the receiving device. This timely identification of the displacement offset between the first mold assembly and the second mold assembly is achieved. Moreover, the electromagnetic signals are not affected by the covering of other materials. In other words, this embodiment can detect the position of the first mold assembly and the second mold assembly in real time during the blade manufacturing process, thereby improving blade quality and blade production efficiency.

[0137] In some embodiments, the transmitting device includes N transmitting coils, the receiving device includes N receiving coils, the N transmitting coils are arranged at a first interval, the N receiving coils are arranged at a second interval, one transmitting coil corresponds to one receiving coil, and N is an integer greater than 1.

[0138] In some embodiments, the determining module 703 is specifically used for:

[0139] Based on the first induced current output by each receiving coil and the first correlation, the displacement offset of the receiving coil relative to the corresponding transmitting coil is determined;

[0140] The target displacement offset of the first mold assembly relative to the second mold assembly is determined based on the displacement offset of each receiving coil.

[0141] In some embodiments, N transmitting coils are arranged in a first shape and N receiving coils are arranged in a second shape. The transmitting device further includes a first electromagnetic coil and the receiving device further includes a second electromagnetic coil. The first electromagnetic coil is located in the inner region of the first shape and the second electromagnetic coil is located in the inner region of the second shape.

[0142] The control module 701 is also used to control the first electromagnetic coil to emit a second electromagnetic signal;

[0143] The receiving module 702 is also used to receive the second induced current output by the second electromagnetic coil under the action of the second electromagnetic signal;

[0144] The determining module 703 is further configured to determine the actual parting surface thickness between the first mold assembly and the second mold assembly based on the second induced current and the second correlation relationship, wherein the second correlation relationship is used to characterize the relationship between different parting surface thicknesses and induced current.

[0145] In some embodiments, the determining module 703 is specifically used for:

[0146] Determine the difference between the actual parting surface thickness and the reference parting surface thickness;

[0147] The testing device 700 for the wind turbine blade mold may also include:

[0148] The correction module is used to correct the first induced current according to the difference to obtain the second induced current, wherein when the difference is greater than 0, the second induced current is less than the first induced current, and when the difference is less than 0, the second induced current is greater than the first induced current.

[0149] Module 703 is specifically used for:

[0150] Based on the second induced current and the first correlation, the target displacement offset of the first mold assembly relative to the second mold assembly is determined.

[0151] In some embodiments, the mold is further provided with an adjustment mechanism, the position of which corresponds to the transmitting device and the receiving device on the mold;

[0152] The testing device 700 for the wind turbine blade mold may also include:

[0153] The generation module is used to generate adjustment instructions based on the target displacement offset when the target displacement offset is greater than the corresponding offset threshold.

[0154] The drive module is used to drive the adjustment mechanism according to the adjustment command, and adjust the position of the first mold assembly and / or the second mold assembly through the adjustment mechanism so that the displacement offset between the first mold assembly and the second mold assembly after adjustment is less than or equal to the corresponding offset threshold.

[0155] In some embodiments, both the receiving device and the transmitting device include multiple devices, each receiving device being disposed on the outer wall of the flange of the first mold assembly at a third interval, and each transmitting device being disposed on the outer wall of the flange of the second mold assembly at a fourth interval.

[0156] The testing device 700 for the wind turbine blade mold may also include:

[0157] The display module is used to display the target displacement offset corresponding to each position of the mold according to a preset display method after the determining module 703 determines the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation relationship.

[0158] Figure 8 This is a schematic diagram of a testing device for wind turbine blade molds provided in an embodiment of this application. The testing device 800 can implement the testing method for wind turbine blade molds described in this embodiment.

[0159] like Figure 8 As shown, the testing device 800 for the wind turbine blade mold may include a processor 801 and a memory 802 storing computer program instructions.

[0160] Specifically, the processor 801 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0161] Memory 802 may include mass storage for data or instructions. For example, and not limitingly, memory 802 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 802 may include removable or non-removable (or fixed) media. Where appropriate, memory 802 may be internal or external to an integrated gateway disaster recovery device. In a particular embodiment, memory 802 is non-volatile solid-state memory. In a particular embodiment, memory 802 may include read-only memory (ROM), random access memory (RAM), disk storage media device, optical storage media device, flash memory device, electrical, optical, or other physical / tangible memory storage device. Thus, generally, memory 802 includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of this application.

[0162] The processor 801 reads and executes computer program instructions stored in the memory 802 to implement any of the wind turbine blade mold detection methods in the above embodiments.

[0163] In one example, the testing device 800 for the wind turbine blade mold may also include a communication interface 803 and a bus 804. For example, Figure 8 As shown, the processor 801, memory 802, and communication interface 803 are connected through bus 804 and complete communication with each other.

[0164] The communication interface 803 is mainly used to realize communication between various modules, devices, apparatuses and / or equipment in the embodiments of this application.

[0165] Bus 804 is used to couple the components of the wind turbine blade mold inspection device 800 together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 804 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0166] The testing equipment for the wind turbine blade mold can perform the testing method for the wind turbine blade mold in the embodiments of this application, thereby achieving a combination of Figures 1 to 6 The method for testing wind turbine blade molds is described.

[0167] Based on the same inventive concept, this application also provides a wind turbine blade mold inspection system. This system includes the wind turbine blade mold inspection equipment described in the above embodiments, as well as a transmitting device and a receiving device. The transmitting device is disposed on the outer wall of the flange of the second mold assembly of the blade mold, and the receiving device is disposed on the outer wall of the flange of the first mold assembly of the blade mold. The positions of the transmitting device and the receiving device are vertically corresponding. Other details can be found in the above embodiments, and for the sake of brevity, they will not be repeated here.

[0168] In addition, in conjunction with the wind turbine blade mold detection method in the above embodiments, this application also provides a readable storage medium for implementation. The readable storage medium stores a program or instructions; when executed by a processor, the program or instructions implement any of the wind turbine blade mold detection methods in the above embodiments.

[0169] This application also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0170] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0171] This application also provides a computer program product, which is stored in a storage medium. When executed by at least one processor, the computer program product can implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0172] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for testing wind turbine blade molds, characterized in that, The mold includes a first mold assembly and a second mold assembly. A receiving device is provided on the outer wall of the flange of the first mold assembly, and a transmitting device is provided on the outer wall of the flange of the second mold assembly. The transmitting device and the receiving device are vertically corresponding. The transmitting device includes N transmitting coils, and the receiving device includes N receiving coils. The N transmitting coils are arranged in a first shape, and the N receiving coils are arranged in a second shape. The transmitting device also includes a first electromagnetic coil, and the receiving device also includes a second electromagnetic coil. The first electromagnetic coil is located in the inner region of the first shape, and the second electromagnetic coil is located in the inner region of the second shape. The method includes: During the mold closing process of the first mold assembly and the second mold assembly, the transmitting device is controlled to emit a first electromagnetic signal; Receive the first induced current output by the receiving device under the action of the first electromagnetic signal; Based on the first induced current and the first correlation, the target displacement offset of the first mold assembly relative to the second mold assembly is determined. The first correlation is used to characterize the relationship between different displacement offsets and the induced current. If the target displacement offset is greater than the corresponding offset threshold, a prompt message is output, which is used to indicate that the first mold assembly has offset relative to the second mold assembly. The method further includes: Control the first electromagnetic coil to emit a second electromagnetic signal; Receive the second induced current output by the second electromagnetic coil under the action of the second electromagnetic signal; Based on the second induced current and the second correlation, the actual parting surface thickness between the first mold assembly and the second mold assembly is determined. The second correlation is used to characterize the relationship between different parting surface thicknesses and induced current. Determining the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation includes: Determine the difference between the actual parting surface thickness and the reference parting surface thickness; The first induced current is corrected based on the difference to obtain the second induced current, wherein when the difference is greater than 0, the second induced current is less than the first induced current, and when the difference is less than 0, the second induced current is greater than the first induced current. Based on the second induced current and the first correlation, the target displacement offset of the first mold assembly relative to the second mold assembly is determined.

2. The method for detecting wind turbine blade molds according to claim 1, characterized in that, The N transmitting coils are arranged at a first interval, and the N receiving coils are arranged at a second interval, with one transmitting coil corresponding to one receiving coil, where N is an integer greater than 1.

3. The method for detecting wind turbine blade molds according to claim 2, characterized in that, Determining the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation includes: Based on the first induced current output by each receiving coil and the first correlation, the displacement offset of the receiving coil relative to the corresponding transmitting coil is determined; The target displacement offset of the first mold assembly relative to the second mold assembly is determined based on the displacement offset corresponding to each of the receiving coils.

4. The method for testing wind turbine blade molds according to any one of claims 1-3, characterized in that, The mold is also provided with an adjustment mechanism, the position of which corresponds to the transmitting device and the receiving device on the mold. If the target displacement offset is greater than the corresponding offset threshold, the method further includes: An adjustment command is generated based on the target displacement offset. The adjustment mechanism is driven according to the adjustment command, and the position of the first mold assembly and / or the second mold assembly is adjusted by the adjustment mechanism so that the displacement offset between the first mold assembly and the second mold assembly after adjustment is less than or equal to the corresponding offset threshold.

5. The method for testing wind turbine blade molds according to any one of claims 1-3, characterized in that, The receiving device and the transmitting device each include multiple devices, each receiving device is arranged at a third interval on the outer wall of the flange of the first mold assembly, and each transmitting device is arranged at a fourth interval on the outer wall of the flange of the second mold assembly. After determining the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation, the method further includes: The target displacement offset corresponding to each position of the mold is displayed according to the preset display method.

6. A testing device for wind turbine blade molds, characterized in that, The mold includes a first mold assembly and a second mold assembly. A receiving device is provided on the outer wall of the flange of the first mold assembly, and a transmitting device is provided on the outer wall of the flange of the second mold assembly. The transmitting device and the receiving device are vertically corresponding. The transmitting device includes N transmitting coils, and the receiving device includes N receiving coils. The N transmitting coils are arranged in a first shape, and the N receiving coils are arranged in a second shape. The transmitting device also includes a first electromagnetic coil, and the receiving device also includes a second electromagnetic coil. The first electromagnetic coil is located in the inner region of the first shape, and the second electromagnetic coil is located in the inner region of the second shape. The device includes: The control module is used to control the transmitting device to emit a first electromagnetic signal during the mold closing process of the first mold assembly and the second mold assembly; The receiving module is used to receive the first induced current output by the receiving device under the action of the first electromagnetic signal; The determining module is used to determine the target displacement offset of the first mold assembly relative to the second mold assembly based on the first induced current and the first correlation relationship, wherein the first correlation relationship is used to characterize the relationship between different displacement offsets and induced current. The output module is used to output a prompt message when the target displacement offset is greater than the corresponding offset threshold. The prompt message is used to indicate that the first mold assembly has offset relative to the second mold assembly. The control module is also used to control the first electromagnetic coil to emit a second electromagnetic signal; The receiving module is also used to receive the second induced current output by the second electromagnetic coil under the action of the second electromagnetic signal; The determining module is further configured to determine the actual parting surface thickness between the first mold assembly and the second mold assembly based on the second induced current and the second correlation relationship, wherein the second correlation relationship is used to characterize the relationship between different parting surface thicknesses and induced current; Determine the difference between the actual parting surface thickness and the reference parting surface thickness; The device further includes: The correction module is used to correct the first induced current according to the difference to obtain a second induced current, wherein when the difference is greater than 0, the second induced current is less than the first induced current, and when the difference is less than 0, the second induced current is greater than the first induced current. The determining module is specifically used for: Based on the second induced current and the first correlation, the target displacement offset of the first mold assembly relative to the second mold assembly is determined.

7. A testing device for wind turbine blade molds, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as described in any one of claims 1 to 5.

8. A detection system for wind turbine blade molds, characterized in that, The device includes the testing equipment for wind turbine blade molds as described in claim 7, as well as a transmitting device and a receiving device; The transmitting device is disposed on the outer wall of the flange of the second mold assembly of the blade mold, and the receiving device is disposed on the outer wall of the flange of the first mold assembly of the blade mold. The positions of the transmitting device and the receiving device are vertically corresponding.

Images