Laser projection positioning marking device

Abstract

The utility model provides a laser projection positioning marking device. The laser projection positioning marking device comprises a weighing platform used for bearing a wind power blade to be positioned; and the laser projection module is arranged above the weighing platform and electrically connected with the weighing platform, and the laser projection module is used for projecting label positioning information to a preset position of the wind power blade. According to the utility model, the laser projection positioning and the weighing process are combined, so that a foundation is laid for realizing accurate positioning.

Description

Technical Field

[0001] The utility model relates to the field of wind turbine blade manufacturing and processing, in particular to a laser projection positioning marking device. Background Art

[0002] As the global demand for clean energy continues to grow, wind power generation, as a renewable energy technology, has been rapidly developed and widely used. In recent years, the unit power of wind turbines has continued to increase, and the size of blades has also increased significantly to capture more wind energy and improve power generation efficiency. Large wind turbine blades can be tens of meters or even hundreds of meters long, and their manufacturing process is complex, which places higher requirements on production accuracy and efficiency.

[0003] During the production process of wind turbine blades, various types of labels need to be affixed to the surface of the blades, such as product information labels, warning labels, production batch labels, etc. These labels carry important product information and safety tips, and are crucial for the transportation, installation, maintenance and management of the blades.

[0004] Traditional label positioning methods mainly rely on manual visual inspection and simple tools. Workers use tape measures, markers and other tools to mark the label's sticking position on the blade surface based on design drawings or experience. However, due to the huge size and complex curved surface of wind turbine blades, this method has many defects:

[0005] Positioning accuracy is difficult to guarantee: manual visual inspection is difficult to overcome the visual error caused by blade size, especially in areas where the blade curvature changes greatly, label position deviation is difficult to avoid.

[0006] Inefficiency: Manual measurement and marking operations are cumbersome and time-consuming, especially when multiple labels need to be pasted, which seriously affects production efficiency.

[0007] Batch consistency is difficult to control: Different workers have different understandings and operating habits of label positions, making it difficult to ensure the consistency of label positions between different batches of blades, which brings difficulties to subsequent production management and quality traceability.

[0008] In order to improve the accuracy and efficiency of label positioning, some manufacturers have developed special fixed tooling. This tooling is designed according to the model and size of the blade, and positioning holes or positioning blocks are set at specific positions to fix the position of the label. However, this method also has some limitations. Each model of blade requires a customized set of tooling, which is costly and difficult to adapt to the diverse needs of blade size and shape. Fixed tooling makes it difficult to adjust the position and direction of the label and cannot meet the positioning requirements of some special labels, such as the need to adjust the label angle according to the change in the curvature of the blade. Fixed tooling is usually bulky and requires a large production site, which is not conducive to the layout and optimization of the production line.

[0009] In summary, the existing wind turbine blade label positioning methods have problems such as low positioning accuracy, low efficiency, poor versatility, and insufficient flexibility, which makes it difficult to meet the requirements of large-scale wind turbine blade production for label positioning accuracy, efficiency, and consistency. Therefore, it is urgent to develop a more efficient, accurate, and flexible label positioning technology to solve the above problems and improve wind turbine blade production efficiency and product quality. Utility Model Content

[0010] In order to overcome the defects in the prior art, the utility model provides a laser projection positioning marking device, which can position labels more accurately and efficiently.

[0011] The utility model solves the above technical problems through the following technical solutions:

[0012] A laser projection positioning marking device comprises: a weighing platform for carrying a wind turbine blade to be positioned; a laser projection module arranged above the weighing platform and electrically connected to the weighing platform, the laser projection module being used to project label positioning information to a predetermined position of the wind turbine blade. The utility model combines laser projection positioning with the weighing process, laying a foundation for achieving precise positioning.

[0013] Preferably, the weighing platform includes a first weighing platform and a second weighing platform which are spaced apart from each other, and the first weighing platform and the second weighing platform are used to carry different parts of the wind turbine blade respectively. This improvement can obtain more comprehensive weight distribution information of the blade and provide more data support for accurate positioning.

[0014] Preferably, the first weighing platform is arranged below the end of the wind turbine blade with greater thickness, which is conducive to more accurate acquisition of blade center of gravity information and provides a basis for adjusting the projection position according to the center of gravity.

[0015] Preferably, the system further comprises a number of laser projection modules equal to the number of the weighing platforms, wherein each of the laser projection modules is arranged directly above the corresponding weighing platform. By correspondingly arranging multiple laser projection modules and weighing platforms, the projection positions of different areas can be adjusted independently, further improving the positioning accuracy.

[0016] Preferably, the wind turbine blade is placed on the weighing platform with the undulating side of the wind turbine blade facing the laser projection module. This placement can avoid the blade shape from blocking the projection and ensure the projection accuracy.

[0017] In summary, the laser projection positioning marking device provided by the utility model obtains blade information by using a weighing platform and controls the laser projection module to perform precise projection based on this information, thereby solving the problems of low positioning accuracy, low efficiency, and poor batch consistency in the prior art, and effectively improving the efficiency and accuracy of wind turbine blade label positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a laser projection positioning marking device according to one embodiment of the utility model. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0020] Figure 1 FIG. 1 is a schematic diagram of the structure of a laser projection positioning marking device according to an embodiment of the present utility model. Figure 1 As shown, the utility model provides a laser projection positioning and marking device, which is mainly used for the precise positioning of labels in the production process of wind turbine blades, and is particularly suitable for large wind turbine blades. It effectively solves the defects of low manual positioning accuracy, low efficiency and poor versatility of fixed tooling.

[0021] The core of the laser projection positioning marking device lies in the ingenious combination of a weighing platform and laser projection technology. Specifically, the device includes a weighing platform for carrying a wind turbine blade 2 to be positioned and a laser projection module 1 for projecting label positioning information.

[0022] The weighing platform is not a single structure, but is composed of a first weighing platform 3 and a second weighing platform 4 that are spaced apart from each other. The reason for using two weighing platforms is to obtain the weight distribution information of the blade more comprehensively and accurately. Large wind turbine blades can be up to tens of meters in length, and the weight of different parts varies greatly. If only one weighing platform is used, it is difficult to accurately reflect the weight distribution of the entire blade. By working together with two or even more weighing platforms, more detailed weight information can be obtained, such as the weight on each weighing platform, weight ratio, center of gravity offset, etc.

[0023] Furthermore, the first weighing platform 3 is arranged below the end of the wind turbine blade 2 where the thickness is greater. This design is because the center of gravity of the wind turbine blade 2 is usually located at the end where the thickness is greater. By arranging the first weighing platform 3 here, the center of gravity information of the blade can be obtained more directly and accurately, providing a more reliable reference basis for the subsequent projection position adjustment.

[0024] The laser projection module 1 disposed above the weighing platform is a key component for achieving precise positioning. The laser projection module 1 is electrically connected to the weighing platform and can obtain weight information from the weighing platform in real time, such as the weight on each platform, weight ratio, etc.

[0025] More preferably, a plurality of laser projection modules 1 are provided in the laser projection positioning marking device, the number of which is equal to the number of weighing platforms, and each laser projection module 1 is provided directly above the corresponding weighing platform. Figure 1 It is shown that corresponding laser projection modules 1 are arranged above the two weighing platforms 3 and 4.

[0026] The reason why multiple laser projection modules are set up in correspondence with multiple weighing platforms is to achieve more refined projection position control. Each laser projection module can independently adjust the label positioning information in its projection area according to the weight information obtained by the corresponding weighing platform. For example, if the weight on the first weighing platform 3 is greater than that on the second weighing platform 4, the control system can fine-tune the projection angle or distance of the first laser projection module 1 according to a pre-set algorithm, so that the projected label positioning information is closer to the first weighing platform 3, so as to compensate for the impact of uneven blade weight.

[0027] In addition, in order to ensure the accuracy of the projection, the placement posture of the wind turbine blade 2 on the weighing platform is also very important. In the utility model, the wind turbine blade 2 is in a state on the weighing platform with the undulating side of the wind turbine blade 2 facing the laser projection module 1. This placement method is adopted because the surface that needs to be labeled is usually located on the undulating side of the blade. If the flat side of the blade is facing the laser projection module, the undulating structure of the blade may block the laser and affect the projection accuracy. If the undulating side of the blade is facing the laser projection module, it can ensure that the laser can be smoothly projected to the target area, avoiding errors caused by occlusion.

[0028] During operation, the wind turbine blade 2 is first placed on the weighing platform, wherein the thicker end of the wind turbine blade 2 is located on the first weighing platform 3, and the other end of the wind turbine blade 2 is located on the second weighing platform 4. At the same time, the undulating side of the wind turbine blade 2 faces the laser projection module 1.

[0029] When the wind turbine blade 2 is placed, the weighing platform will transmit the acquired weight information to the laser projection module 1. The laser projection module 1 calculates the accurate projection position of the label on the wind turbine blade 2 based on the received weight information, and projects the label positioning information, such as crosshairs, positioning frame, etc., to the predetermined position of the wind turbine blade 2. Workers only need to stick the label along the projection line without any measurement and calculation, which greatly simplifies the operation process and improves production efficiency.

[0030] To sum up, the laser projection positioning and marking device provided by the utility model realizes fine control of the projection position through the coordinated work of multiple weighing platforms and laser projection modules, combined with the optimization of the blade placement posture, effectively solves the problems of low positioning accuracy, low efficiency, poor batch consistency and so on existing in the prior art, and significantly improves the efficiency and accuracy of wind turbine blade label positioning.

[0031] This specific implementation method describes in detail a preferred implementation method of the utility model, and describes in detail each technical feature in conjunction with the accompanying drawings. It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solution described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents, so as to implement the technical solution of the utility model.

Claims

1. A laser projection positioning marking device, characterized in that: include: A weighing platform for carrying wind turbine blades to be positioned; A laser projection module is arranged above the weighing platform and electrically connected to the weighing platform, and the laser projection module is used to project the label positioning information to a predetermined position of the wind turbine blade.

2. The laser projection positioning marking device according to claim 1, characterized in that: The weighing platform comprises a first weighing platform and a second weighing platform which are spaced apart from each other, and the first weighing platform and the second weighing platform are respectively used to carry different parts of the wind turbine blade.

3. The laser projection positioning marking device according to claim 2, characterized in that: The first weighing platform is arranged below the end of the wind turbine blade with a larger thickness.

4. The laser projection positioning marking device according to claim 3, characterized in that: It also includes laser projection modules whose number is equal to the number of the weighing platforms, wherein each of the laser projection modules is arranged directly above the corresponding weighing platform.

5. The laser projection positioning marking device according to claim 4, characterized in that: The wind turbine blade is in a state on the weighing platform with the undulating side of the wind turbine blade facing the laser projection module.

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