Web wire excess bending positioning tool

Abstract

The utility model belongs to wind power blade installation technical field, specifically discloses a web wire excess bending positioning tool, including the wire slot and the limiting block, limiting block is provided with a plurality of, a plurality of limiting blocks are along the length direction interval of wire slot Setting, limiting block can be driven to be close to the slot of wire slot to wire limit in wire slot, or limiting block can be driven to be away from the slot of wire slot to remove the limiting of wire, wire slot is curved along the setting direction to form the excess bending reservation part that is arc, through limiting block cooperation pre -bending wire slot structure, realized the accurate positioning and excess bending reservation of wire, solved the problem that manual operation precision is insufficient, has the advantage that improves excess bending reservation precision, guarantees construction consistency, promotes production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wind turbine blade installation technology, and particularly relates to a positioning fixture for the excess bend of the web conductor. Background Technology

[0002] In the manufacturing process of wind turbine blades, the arrangement of the web conductors is a key factor affecting blade performance. Web conductors mainly refer to conductive components such as cables and sensor lines arranged inside or on the surface of the blade web, undertaking important functions such as power transmission, signal monitoring, lightning protection, and system control. To ensure that the conductors are not damaged during blade operation, appropriate camber must be provided. When the blade undergoes bending, vibration, or other deformations during operation, these cambers can effectively absorb mechanical stress, preventing the conductors from being pulled apart or damaged. However, controlling the amount of camber presents significant technical challenges: insufficient camber can cause the conductor bars to be pulled out during lightning strikes, resulting in the failure of the lightning protection system; while excessive camber can cause excess conductors to sway within the web, leading to insulation wear over long-term operation and affecting system reliability.

[0003] Currently, the industry standard practice is for construction workers to manually determine the allowance for bends during installation. This method has significant limitations: construction workers relying on experience cannot guarantee the accuracy of the bend dimensions, failing to meet the stringent requirements of design drawings; there is a lack of consistency in the allowances made by different construction workers or in different batches; and manual operation is inefficient and difficult to adapt to the needs of large-scale production. These technical deficiencies severely restrict the quality stability and production efficiency of wind turbine blades.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for the excess bend of the web conductor, so as to solve the problems of low efficiency of manual operation and difficulty in ensuring the accuracy and consistency of the excess bend dimensions.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a web conductor excess bend positioning fixture, comprising a conductor groove and a limiting block, wherein multiple limiting blocks are provided, and the multiple limiting blocks are spaced apart along the length direction of the conductor groove. The limiting blocks can be driven to approach the opening of the conductor groove to limit the conductor within the conductor groove, or the limiting blocks can be driven away from the opening of the conductor groove to release the limitation on the conductor; the conductor groove is bent along a set direction to form an arc-shaped excess bend reserved portion.

[0007] Furthermore, it also includes a base plate, and the wire channel is composed of two parallel guide plates, which are fixedly installed on the base plate. A limiting block is installed on the base plate and located near the wire channel.

[0008] Furthermore, the wire groove also has a straight guide section, the middle part of the wire groove is bent in a set direction to form a reserved excess bend section, and the two ends of the reserved excess bend section are straight guide sections in a straight line shape.

[0009] Furthermore, it also includes mounting columns, the number of which is equal to the number of limiting blocks. The mounting columns are installed on the base plate and located near the wire groove, and multiple limiting blocks are installed on the mounting columns one by one.

[0010] Furthermore, multiple mounting posts are installed on the same side of the wire trough.

[0011] Furthermore, the mounting column is a threaded column, which can be detachably installed on the base plate through a threaded connection. The central axis of the mounting column is set perpendicular to the base plate. The mounting column can be manipulated to move along its own axis with a single degree of freedom, and the limit block moves accordingly to approach or move away from the slot of the wire groove.

[0012] Furthermore, the limiting block is provided with an installation hole, through which the mounting column passes and limits the limiting block to the top of the mounting column.

[0013] The beneficial effects of this technical solution are as follows:

[0014] Compared to existing technologies, the web conductor bend positioning fixture of this utility model has a pre-curved conductor groove for accommodating and guiding the web conductor, which can more accurately and quickly position the pre-bend position of the conductor. With the help of adjustable limit blocks, the bending angle and bending allowance of the conductor bend meet the design requirements, and avoid the inconsistency problems caused by manual measurement and operation. It realizes the accurate positioning of the conductor and the allowance of the bend. It has the advantages of improving the accuracy of the allowance of the bend, ensuring the consistency of construction, and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the web conductor bend positioning fixture of this utility model.

[0016] Figure 2 This is the front view of the web conductor bend positioning fixture of this utility model.

[0017] Figure 3 This is a schematic diagram of the wire groove of this utility model;

[0018] Figure 4 This is a front view of the wire groove of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting block of this utility model. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: wire groove 1, excess bend reserved part 101, straight guide part 102, limit block 2, mounting hole 201, base plate 3, mounting column 4, and guide plate 5.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The basic implementation examples are as follows: Figure 1-5 As shown: A web conductor bend positioning fixture includes a conductor groove 1 and multiple limiting blocks 2. These limiting blocks 2 are spaced apart along the length of the conductor groove 1. Each limiting block 2 can be driven close to the opening of the conductor groove 1 to confine the conductor within the groove, or it can be driven away from the opening to release the conductor's confinement. The conductor groove 1 is bent along a predetermined direction to form an arc-shaped bend allowance 101. The conductor groove 1 accommodates and guides the web conductor, ensuring that the conductor is bent and the bending shape matches the desired bend shape. The limiting blocks 2 fix the conductor's position, ensuring the positioning and forming of the bend. The spaced arrangement of the multiple limiting blocks 2 ensures the conductor is fixed in multiple positions, improving positioning accuracy. The limiting block 2 can be driven manually, pneumatically, electrically, or hydraulically. Specifically, it can be driven linearly by threaded transmission, gear and rack transmission, or a linear motor. Alternatively, it can be used with a rotating shaft to swing or rotate in a plane. The bending direction of the wire groove 1 can be adjusted and changed by those skilled in the art according to actual needs. The arc-shaped design of the excess bend allowance 101 can effectively disperse the wire stress and avoid local stress concentration. The wire groove 1 with a pre-set excess bend can quickly locate the excess bend position on the web wire and, together with the limiting block 2, achieve the formation of the excess bend, improving positioning accuracy and production efficiency. At the same time, using a uniform wire groove 1 ensures the consistency of the wire excess bend allowance. Compared with the prior art, it avoids the dimensional deviation problem caused by manual experience-based excess bend allowance, ensuring that the wire is not damaged by tensile stress during blade operation. It also facilitates installation and maintenance. By replacing manual operation with mechanical positioning, the accuracy and repeatability of the excess bend allowance are improved, solving the technical problem that traditional methods cannot guarantee the consistency of excess bends at various locations.

[0024] In this embodiment, a base plate 3 is also included. The wire guide groove 1 is composed of two parallel guide plates 5, which are fixedly installed on the base plate 3. A limiting block 2 is installed on the base plate 3 and located near the wire guide groove 1. The base plate 3 serves as the installation foundation for the entire fixture and can be made of metal sheet or high-strength composite material. The guide plates 5 are fixed to the surface of the base plate 3 by welding, bolting, or bonding. The limiting block 2 is made of alloy, engineering plastic, or rubber and is detachably installed on a preset installation position on the base plate 3 by screws, clips, or magnetic attraction. The installation position is provided with positioning holes or guide rail structures to ensure positional accuracy. In this embodiment, two parallel guide plates 5 are used as the sidewalls of the wire guide groove 1, while the base plate 3 serves as the bottom of the wire guide groove 1, forming a groove structure with open ends. This facilitates the arrangement of the web wire within the wire guide groove 1 and further improves the efficiency of bending positioning.

[0025] In this embodiment, the conductor groove 1 also has a straight guide portion 102. The middle part of the conductor groove 1 is bent in a predetermined direction to form a bend allowance portion 101, and the two ends of the bend allowance portion 101 are straight guide portions 102. In this embodiment, the middle parts of the two guide plates 5 are bent in the predetermined direction simultaneously, ultimately forming an arched conductor groove 1. The arched part in the middle of the conductor groove 1 is the bend allowance portion 101, and the straight parts at both ends are the straight guide portions 102. With this structure, after the web conductor is placed into the conductor groove 1, the bend allowance that meets the conditions can be obtained directly, saving time and effort. By setting the straight guide portion 102, the conductor is guided by a straight segment when entering and leaving the bent bend allowance portion 101, effectively avoiding the stress concentration problem of the conductor in the bending transition area. The setting of the straight guide portion 102 allows the conductor to smoothly transition from a straight state to a bent state, thereby ensuring the accuracy and consistency of the bend shape. Compared to operations that rely entirely on manual bending, this structure can precisely control the starting position and curvature of the wire bending, solving the problem of inconsistent residual bend dimensions that are difficult to guarantee during manual operations. Simultaneously, the combined structure of the straight guide section 102 and the residual bend allowance section 101 provides a complete guiding path for the wire, ensuring the effective reservation of residual bends.

[0026] In this embodiment, the system also includes mounting columns 4, the number of which is equal to the number of limiting blocks 2. The mounting columns 4 are mounted on the base plate 3 and located near the wire groove 1. Multiple limiting blocks 2 are correspondingly mounted on the mounting columns 4. The multiple mounting columns 4 are located on the same side of the wire groove 1. The mounting columns 4 are threaded columns, detachably mounted to the base plate 3 via a threaded connection. The central axis of the mounting column 4 is perpendicular to the base plate 3, and the mounting column 4 can be manipulated to move freely along its own axis with a single degree of freedom. The limiting blocks 2 move accordingly to approach or move away from the opening of the wire groove 1. The limiting blocks 2 are provided with mounting holes 201, through which the mounting columns 4 pass and limit the limiting blocks 2 to their tops. In this embodiment, the mounting column 4 serves as the mounting and adjustment base for the limiting block 2. The mounting column 4 is connected to the base plate 3 via a threaded connection to achieve adjustment. A threaded hole is provided at the corresponding position on the base plate 3. After the mounting column 4 passes through the mounting hole 201 of the limiting block 2, it is connected to the threaded hole. Tightening the mounting column 4 causes it to move axially, thereby adjusting the limiting block 2 to move closer to or further away from the slot of the wire groove 1, thus achieving the installation and adjustment of the limiting block 2. In this embodiment, the limiting block 2 is positioned on the top of the mounting column 4. The specific connection between the two can be a threaded connection, i.e., an internal thread is provided in the mounting hole 201, and the limiting block 2 is installed onto the top of the mounting column 4 via the thread. Alternatively, the limiting block 2 can be installed by clamping or snapping, such as by providing two nuts on the mounting column 4 and placing the limiting block 2 between the two nuts, thus limiting the limiting block 2 to the top of the mounting column 4. The limiting block 2 and the mounting column 4 only need to be fixed axially to the mounting column 4, ensuring that the limiting block 2 is at the top of the mounting column 4. Whether the limiting block 2 is circumferentially fixed to the mounting column 4 (i.e., whether it can rotate or swing circumferentially on the mounting column 4) is not required. By centrally arranging the mounting columns 4 on the same side of the wire trough 1, the operating space of the limiting mechanism is more concentrated, facilitating the unified adjustment of the positions of multiple limiting blocks 2 by construction personnel. The threaded connection structure of the mounting column 4 ensures installation accuracy while facilitating disassembly and maintenance. The single-degree-of-freedom movement design enables precise control of the position of the limiting block 2, ensuring the positioning accuracy of the wire in the excess bend allowance 101.

[0027] The specific implementation process is as follows:

[0028] When laying web conductors to the point where excess bends need to be reserved, place the excess bend positioning fixture for web conductors at the corresponding position, then clamp the conductor into the conductor groove 1, and then use the limiting block 2 to limit the conductor in the conductor groove 1. Then fix the part of the conductor outside the conductor groove 1, and then remove the excess bend positioning fixture for web conductors. This completes the positioning and reservation of excess bends for web conductors.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A positioning fixture for the excess bend of a web conductor, characterized in that: The device includes a wire groove and a limiting block, wherein multiple limiting blocks are provided and spaced apart along the length direction of the wire groove. The limiting block can be driven to approach the opening of the wire groove to confine the wire within the wire groove, or the limiting block can be driven away from the opening of the wire groove to release the confinement of the wire. The wire groove is bent along a set direction to form an arc-shaped allowable bend.

2. The web conductor bend positioning fixture according to claim 1, characterized in that: It also includes a base plate, the wire groove is composed of two parallel guide plates, the two guide plates are fixedly installed on the base plate, and the limiting block is installed on the base plate and located near the wire groove.

3. The web conductor bend positioning fixture according to claim 1, characterized in that: The wire groove also has a straight guide portion, the middle part of the wire groove is bent in a set direction to form the excess bend reserved portion, and the two ends of the excess bend reserved portion are straight guide portions in a straight line shape.

4. The web conductor bend positioning fixture according to claim 2, characterized in that: It also includes mounting columns, the number of which is equal to the number of limiting blocks. The mounting columns are installed on the base plate and located near the wire groove, and the multiple limiting blocks are installed on the mounting columns one by one.

5. The web conductor bend positioning fixture according to claim 4, characterized in that: Multiple mounting posts are located on the same side of the wire channel.

6. The web conductor bend positioning fixture according to claim 4, characterized in that: The mounting column is a threaded column, which is detachably installed on the base plate by means of threaded engagement. The central axis of the mounting column is set perpendicular to the base plate. The mounting column can be manipulated to move along its own axis with a single degree of freedom. The limiting block moves accordingly to approach or move away from the slot of the wire groove.

7. The web conductor bend positioning fixture according to claim 4, characterized in that: The limiting block is provided with an installation hole, and the mounting column passes through the installation hole and limits the limiting block to the top of the mounting column.

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