Clamp for wind power base processing

Abstract

A kind of wind power pedestal processing clamp, including pedestal, first slider, second slider and clamping assembly, pedestal is equipped with slide rail;First slider is slidably arranged on slide rail, first slider is equipped with first positioning pin for being connected with one threaded hole of wind power pedestal;Second slider is slidably arranged on slide rail, second slider is equipped with second positioning pin for being connected with another threaded hole of wind power pedestal;Clamping assembly is arranged on pedestal, and clamping assembly includes a plurality of clamping pieces that are arranged circumferentially along the axis of wind power pedestal, and the clamping piece is used to clamp wind power pedestal.This application is by being provided with slide rail on pedestal, so that first slider and second slider can slide on slide rail, and first positioning pin is provided on first slider, and second positioning pin is provided on second slider, so that the clamp can adapt to the processing needs of wind power pedestal with a variety of different threaded hole pitch and installation contour, expand the use range of clamp, improve the versatility.

Description

Technical Field

[0001] This application relates to the field of tooling and fixture technology, specifically to a fixture for processing wind turbine bases. Background Technology

[0002] The base of a large wind turbine, also known as the nacelle base, is a key structural component supporting the entire generator set. Its structural integrity and manufacturing quality directly determine the operational stability and service life of the wind turbine. The bearing mounting surface on the base, as the core part that mates with the main shaft bearing, has extremely stringent requirements for machining accuracy, flatness, and the final stress distribution of the workpiece. Any minute machining error can cause abnormal bearing wear or generator vibration problems, thereby affecting power generation efficiency and equipment safety.

[0003] In existing technologies, to meet the high-precision machining requirements of bearing mounting surfaces, specialized tilting fixtures are used for clamping and positioning. By tilting the wind turbine base at a designed angle, the surface to be machined is kept perpendicular to the machine tool spindle, ensuring the accuracy of the machining process. However, the positioning elements on these specialized fixtures, such as locating pins and locating blocks, are all fixed in position and cannot be adjusted. Because different models of wind turbine bases differ in size, specifications, and structural features, existing fixtures can only accommodate the machining requirements of a single model, resulting in poor fixture versatility, low utilization, and increased manufacturing costs. Utility Model Content

[0004] The purpose of this application is to provide a jig for processing wind turbine bases, which solves the problems of poor versatility and low utilization rate of jigs for processing wind turbine bases.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] In a first aspect, this application provides a fixture for processing wind turbine bases, wherein the wind turbine base is provided with a plurality of threaded holes arranged circumferentially along its own axis, including:

[0007] The base is equipped with a slide rail;

[0008] A first sliding member is slidably disposed on the slide rail, and the first sliding member is provided with a first positioning pin for connecting with one of the threaded holes of the wind turbine base.

[0009] The second sliding member is slidably disposed on the slide rail, and the second sliding member is provided with a second positioning pin for connecting with another threaded hole of the wind turbine base;

[0010] A clamping assembly is disposed on the base. The clamping assembly includes a plurality of clamping members arranged circumferentially along the axis of the wind turbine base. The clamping members are used to clamp the wind turbine base.

[0011] In one embodiment, the base has a through hole arranged along the axis of the wind turbine base, the slide rail includes a first track and a second track, the first track and the second track are symmetrically arranged on both sides of the through hole, the first sliding member is arranged on the first track, and the second sliding member is arranged on the second track.

[0012] In one embodiment, both the first track and the second track extend from the through hole toward the edge of the base.

[0013] In one embodiment, both the end of the first track away from the through hole and the end of the second track away from the through hole are provided with a stop block.

[0014] In one embodiment, the first sliding member is provided with a first guide groove and a second guide groove, and the first track includes a slide groove, a first guide plate and a second guide plate. The first guide plate and the second guide plate are respectively disposed on the groove walls on both sides of the slide groove. The first guide plate is inserted into the first guide groove and the second guide plate is inserted into the second guide groove.

[0015] In one embodiment, the first sliding member is provided with a first pin hole, one end of the first positioning pin is inserted into the first pin hole, and the other end of the first positioning pin is provided with an external thread for engaging with the threaded hole of the wind turbine base.

[0016] In one embodiment, the clamping member includes a screw, a pressure plate, and a first fastener. One end of the screw is connected to the base, and the other end of the screw is connected to the pressure plate. The pressure plate is used to press against the wind turbine base, and the first fastener is threadedly connected to the screw.

[0017] In one embodiment, the pressure plate is provided with an oblong hole, the oblong hole extends in a direction perpendicular to the axial direction of the screw, and the screw is inserted into the oblong hole.

[0018] In one embodiment, the system further includes a plurality of pads disposed on the base, the plurality of pads being spaced apart in the circumferential direction of the through hole.

[0019] In one embodiment, the device further includes a third positioning pin and a second fastener. The base has a second pin hole and a first mounting hole, and the pad has a third pin hole and a second mounting hole. The third positioning pin is inserted into the second pin hole and the second pin hole, and one end of the second fastener passes through the second mounting hole and is threadedly connected to the first mounting hole.

[0020] Compared with the prior art, this application has at least the following beneficial effects:

[0021] 1. In this application, by setting a slide rail on the base, both the first sliding member and the second sliding member can slide on the slide rail. A first positioning pin is set on the first sliding member and a second positioning pin is set on the second sliding member. The position of the threaded hole on the wind turbine base of different specifications can be adjusted, so that the fixture can adapt to the processing needs of wind turbine bases with different threaded hole spacing and installation contours, expand the application range of the fixture, improve its versatility, and thus reduce manufacturing costs.

[0022] 2. In this application, the first positioning pin on the first sliding member and the second positioning pin on the second sliding member are respectively connected to the threaded holes at different positions on the wind turbine base, thereby realizing multi-point positioning of the wind turbine base. This can accurately limit the degree of freedom of the wind turbine base, effectively prevent it from shifting or rotating during processing, and improve the accuracy and reliability of positioning.

[0023] 3. In this application, multiple clamping components arranged circumferentially along the axis of the wind turbine base can apply uniform clamping force to the wind turbine base from multiple directions, so that the wind turbine base is stably constrained during the processing, can effectively withstand various external forces generated during the processing, reduce vibration and deformation, thereby ensuring processing accuracy and surface quality, and improving the product qualification rate. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a perspective view of a jig for processing a wind turbine base according to one embodiment of this application;

[0026] Figure 2 This is a side view of a jig for processing a wind turbine base according to one embodiment of this application;

[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 An exploded view of the first sliding member and the first locating pin according to one embodiment of this application;

[0029] Figure 5 This is a perspective view of a clamping member according to one embodiment of this application;

[0030] Figure 6 This is a perspective view of a pad block according to one embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100, Base; 110, Slide rail; 111, First track; 111a, Slide groove; 111b, First guide plate; 111c, Second guide plate; 112, Second track; 120, Through hole; 130, Stop block; 200, First sliding member; 210, First guide groove; 220, Second guide groove; 230, First pin hole; 300, First positioning pin; 400, Second sliding member; 500, Second positioning pin; 600, Clamping assembly; 610, Clamping member; 611, Screw; 612, Pressure plate; 612a, Waist-shaped hole; 700, Pad; 710, Third pin hole; 720, Second mounting hole; 800, Third positioning pin; 900, Second fastener. Detailed Implementation

[0033] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0034] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides a jig for processing wind turbine bases. The wind turbine base is provided with a plurality of threaded holes arranged circumferentially along its own axis. The jig for processing wind turbine bases includes a base 100, a first sliding member 200, a first positioning pin 300, a second sliding member 400, a second positioning pin 500, and a clamping assembly 600.

[0035] The base 100 serves as the basic support component of the entire fixture, providing mounting positions for other components. The base 100 is equipped with a slide rail 110, allowing the first slider 200 and the second slider 400 to move flexibly on the base 100.

[0036] A first sliding member 200 is slidably mounted on a slide rail 110. The first sliding member 200 has a first locating pin 300 for connecting with one of the threaded holes on the wind turbine base. The size and shape of the first locating pin 300 match the threaded hole on the wind turbine base, allowing it to be accurately inserted into the threaded hole. By sliding the first sliding member 200 on the slide rail 110, the position of the first locating pin 300 is adjusted, enabling it to connect with the threaded hole at a specific location on the wind turbine base, thus achieving initial positioning.

[0037] The second sliding member 400 is slidably mounted on the slide rail 110, and is provided with a second locating pin 500 for connecting to another threaded hole of the wind turbine base. The second sliding member 400 is also slidably mounted on the slide rail 110 and is provided with a second locating pin 500 for connecting to another threaded hole of the wind turbine base. The second locating pin 500 is similar to the first locating pin 300, engaging with a corresponding threaded hole. Through the coordinated operation of the second sliding member 400 and the first sliding member 200, the degrees of freedom of the wind turbine base are further restricted, enhancing the accuracy and stability of positioning and preventing displacement or rotation of the wind turbine base during processing.

[0038] A clamping assembly 600 is mounted on the base 100. The clamping assembly 600 includes multiple clamping members 610 arranged circumferentially along the axis of the wind turbine base. The clamping members 610 are used to clamp the wind turbine base. After the first sliding member 200 and the second sliding member 400 complete the initial positioning, the clamping assembly 600 clamps the wind turbine base simultaneously through the multiple clamping members 610, ensuring that the wind turbine base is firmly fixed during processing and can withstand various forces generated during processing, such as cutting forces and vibrations, thus ensuring processing accuracy and quality.

[0039] In this application, by setting a slide rail 110 on the base 100, both the first sliding member 200 and the second sliding member 400 can slide on the slide rail 110. A first positioning pin 300 is set on the first sliding member 200, and a second positioning pin 500 is set on the second sliding member 400. This allows for adjustment according to the position of the threaded holes on wind turbine bases of different specifications, enabling the fixture to adapt to the processing needs of wind turbine bases with various threaded hole spacings and installation contours. This expands the scope of application of the fixture, improves its versatility, and thus reduces manufacturing costs. Furthermore, by connecting the first positioning pin 300 on the first sliding member 200 and the second positioning pin 500 on the second sliding member 400 to threaded holes at different positions on the wind turbine base, multi-point positioning of the wind turbine base is achieved. This precisely restricts the degrees of freedom of the wind turbine base, effectively preventing positional shifts or rotations during processing, and improving the accuracy and reliability of positioning.

[0040] The base 100 has a through hole 120 arranged along the axis of the wind turbine base. The slide rail 110 includes a first rail 111 and a second rail 112, which are symmetrically arranged on both sides of the through hole 120. A first sliding member 200 is disposed on the first rail 111, and a second sliding member 400 is disposed on the second rail 112. Specifically, the through hole 120 is a circular opening structure at the center of the base 100. The first rail 111 and the second rail 112 are both linear sliding structures with guiding functions, providing a precise movement path for the first sliding member 200 and the second sliding member 400.

[0041] The through hole 120 serves as a geometric reference, ensuring that the axis of the wind turbine base is aligned with the axis of the clamp, effectively preventing positioning errors caused by eccentricity. The first track 111 and the second track 112 are designed as separate units, symmetrically positioned on both sides of the through hole 120. The cooperation between the first sliding member 200 and the first track 111, and between the second sliding member 400 and the second track 112, dynamically adapts to changes in the threaded hole spacing of bases 100 with different diameters, thus solving the problems of clamping deviation and insufficient clamp versatility.

[0042] In one embodiment, both the first track 111 and the second track 112 extend from the through hole 120 towards the edge of the base 100. Specifically, the through hole 120 serves as a central opening structure on the base 100, providing a positioning reference for the wind turbine base and allowing space for operation in the central area, facilitating the installation of the first sliding member 200 and the second sliding member 400. Extending the first track 111 and the second track 112 outward from the through hole 120 to the edge of the base 100 increases the range of motion of the first sliding member 200 and the second sliding member 400, enabling them to adapt to the processing requirements of wind turbine bases with various thread hole spacings and installation profiles, thus expanding the application range of the fixture.

[0043] Both the end of the first track 111 away from the through hole 120 and the end of the second track 112 away from the through hole 120 are provided with a stop 130. Specifically, the stop 130 is a structural component used to limit the movement range of the first sliding member 200 and the second sliding member 400, and it can be made of metal, plastic, or other materials with sufficient strength. In practical applications, the stop 130 can be integrally set with the base 100. The function of the stop 130 is to effectively prevent the first sliding member 200 and the second sliding member 400 from sliding out of the track ends, thereby ensuring the stability of the clamp function.

[0044] In one embodiment, the first sliding member 200 is provided with a first guide groove 210 and a second guide groove 220. The first track 111 includes a sliding groove 111a, a first guide plate 111b, and a second guide plate 111c. The first guide plate 111b and the second guide plate 111c are respectively disposed on the groove walls on both sides of the sliding groove 111a. The first guide plate 111b is inserted into the first guide groove 210, and the second guide plate 111c is inserted into the second guide groove 220. Specifically, the first guide groove 210 and the second guide groove 220 are two guide groove structures disposed on the first sliding member 200. They can be implemented in different forms such as straight grooves, dovetail grooves, or T-shaped grooves. Through the cooperation of the first guide groove 210 with the first guide plate 111b and the second guide groove 220 with the second guide plate 111c, the lateral movement freedom of the first sliding member 200 and the second sliding member 400 can be restricted respectively, preventing shaking caused by external forces.

[0045] The first guide plate 111b and the second guide plate 111c can be understood as protruding structures fixed on the two sides of the groove wall of the slide 111a. They can be made of metal plates, rigid plastic plates or other materials with sufficient strength, with the purpose of providing stable guiding support.

[0046] Furthermore, the first sliding member 200 is provided with a first pin hole 230, one end of the first positioning pin 300 is inserted into the first pin hole 230, and the other end of the first positioning pin 300 is provided with an external thread for engaging with the threaded hole of the wind turbine base. The first pin hole 230 on the first sliding member 200 provides a stable mounting base, enabling the first positioning pin 300 to be accurately positioned and held in the set position, avoiding loosening of the connection due to manufacturing errors or external vibrations. The first positioning pin 300 forms a tight fit with the first pin hole 230 through insertion. This mechanical connection method effectively reduces the relative displacement that may occur during processing, ensuring the stability of the clamping position. At the same time, the external thread design at the end of the first positioning pin 300 allows it to be directly screwed into the threaded hole of the wind turbine base, which not only enhances the overall clamping force but also facilitates quick adjustment or replacement of the positioning pin according to actual needs, significantly improving the adaptability and ease of operation of the fixture.

[0047] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The clamping component 610 includes a screw 611, a pressure plate 612, and a first fastener. One end of the screw 611 is connected to the base 100, and the other end is connected to the pressure plate 612. The pressure plate 612 is used to press against the wind turbine base. The first fastener is threadedly connected to the screw 611. Specifically, the screw 611 is a rod-shaped component with external threads. The pressure plate 612 can be made of steel plate or aluminum alloy plate. The first fastener is a locking component with internal threads, which can be implemented using a wing nut or a hexagonal nut. Its purpose is to quickly apply or release clamping force through rotation.

[0048] This application provides a stable foundation support for the entire clamping structure through the connection between the screw 611 and the base 100. Simultaneously, the axial characteristics of the screw 611 serve as a guide path, allowing the pressure plate 612 to move freely along the axial direction of the screw 611. This design allows the pressure plate 612 to dynamically adapt to changes in the actual height of the wind turbine base, ensuring that the pressure plate 612 always maintains a tight fit against the workpiece surface. The threaded engagement mechanism between the first fastener and the screw 611 simplifies the locking operation, avoiding the cumbersome disassembly steps of traditional fixing methods.

[0049] In one embodiment, the pressure plate 612 is provided with an oblong hole 612a, which extends in a direction perpendicular to the axial direction of the screw 611, and the screw 611 is inserted into the oblong hole 612a. The oblong hole 612a is a hole-like structure with an elongated profile, providing movable space for the pressure plate 612, allowing the pressure plate 612 to dynamically compensate according to the actual position of the wind turbine base. The design of the oblong hole 612a enables relative movement between the pressure plate 612 and the screw 611, effectively improving the fixture's adaptability to installation deviations of the wind turbine base.

[0050] The jig for processing wind turbine bases also includes multiple pads 700 disposed on the base 100, with the pads 700 spaced apart circumferentially in the through hole 120. Each pad 700 is a structural component that directly contacts the bottom of the wind turbine base to provide support; it can be a cylindrical or square support body made of metal. By providing multiple pads 700 on the base 100, the deformation problem caused by uneven support during wind turbine base processing is effectively solved.

[0051] In actual use, multiple pads 700 with different thicknesses can be set. The tilt angle of the top surface of the base 100 is 8°. By selecting pads 700 with different thicknesses, the tilt angle of the contact surface between the pads 700 and the wind turbine base can be 7.5°, 8°, 8.5°, etc., to meet the processing requirements of different wind turbine bases.

[0052] Furthermore, the fixture for processing wind turbine bases also includes a third positioning pin 800 and a second fastener 900. The base 100 has a second pin hole and a first mounting hole, and the pad 700 has a third pin hole 710 and a second mounting hole 720. The third positioning pin 800 is inserted into the second pin hole and the third pin hole 710, and one end of the second fastener 900 passes through the second mounting hole 720 and is threadedly connected to the first mounting hole. Specifically, the dual fixing mechanism of the third positioning pin 800 and the second fastener 900 effectively solves the problem of easy displacement of the pad 700 during the processing of wind turbine bases. The second pin hole and the first mounting hole on the base 100 serve as fixing references. According to the pre-designed hole layout of the base 100 structure, the installation positions of the third positioning pin 800 and the second fastener 900 are precisely matched with the requirements of the pad 700. The third pin hole 710 and the second mounting hole 720 on the pad 700 are set according to the correspondence of the holes on the base 100, so that the pad 700 can be quickly aligned and initially positioned. The third locating pin 800 is inserted into the second pin hole and the third pin hole 710 to achieve radial constraint; the second fastener 900 passes through the second mounting hole 720 and is threadedly connected to the first mounting hole, providing reliable axial locking and suppressing the negative impact of the displacement of the pad 700 on the machining accuracy of the wind turbine base.

[0053] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0054] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A fixture for processing wind turbine bases, wherein the wind turbine base is provided with a plurality of threaded holes arranged circumferentially along its own axis, characterized in that, include: The base is provided with a slide rail and a through hole arranged along the axis of the wind turbine base. The slide rail includes a first rail and a second rail, which are symmetrically arranged on both sides of the through hole. A first sliding member is slidably disposed on the first track, and the first sliding member is provided with a first positioning pin for connecting with one of the threaded holes of the wind turbine base. The second sliding member is slidably disposed on the second track, and the second sliding member is provided with a second positioning pin for connecting with another threaded hole of the wind turbine base; A clamping assembly is disposed on the base, the clamping assembly including a plurality of clamping members arranged circumferentially along the axis of the wind turbine base, the clamping members being used to clamp the wind turbine base; A plurality of pads are provided on the base, and the plurality of pads are spaced apart in the circumferential direction of the through hole.

2. The jig for processing wind turbine bases according to claim 1, characterized in that, Both the first track and the second track extend from the through hole toward the edge of the base.

3. The jig for processing wind turbine bases according to claim 1, characterized in that, Both the end of the first track away from the through hole and the end of the second track away from the through hole are provided with a stop block.

4. The jig for processing wind turbine bases according to claim 1, characterized in that, The first sliding member is provided with a first guide groove and a second guide groove. The first track includes a slide groove, a first guide plate and a second guide plate. The first guide plate and the second guide plate are respectively disposed on the groove walls on both sides of the slide groove. The first guide plate is inserted into the first guide groove and the second guide plate is inserted into the second guide groove.

5. The jig for processing wind turbine bases according to claim 1, characterized in that, The first sliding member is provided with a first pin hole, one end of the first positioning pin is inserted into the first pin hole, and the other end of the first positioning pin is provided with an external thread for engaging with the threaded hole of the wind turbine base.

6. The jig for processing wind turbine bases according to claim 1, characterized in that, The clamping component includes a screw, a pressure plate, and a first fastener. One end of the screw is connected to the base, and the other end of the screw is connected to the pressure plate. The pressure plate is used to press the screw onto the wind turbine base. The first fastener is threadedly connected to the screw.

7. The jig for processing wind turbine bases according to claim 6, characterized in that, The pressure plate is provided with an oblong hole, which extends in a direction perpendicular to the axial direction of the screw, and the screw is inserted into the oblong hole.

8. The jig for processing wind turbine bases according to claim 1, characterized in that, It also includes a third positioning pin and a second fastener. The base is provided with a second pin hole and a first mounting hole. The pad is provided with a third pin hole and a second mounting hole. The third positioning pin is inserted into the second pin hole and the third pin hole. One end of the second fastener passes through the second mounting hole and is threadedly connected to the first mounting hole.

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