A processing tool for a wind power shell

Abstract

This application discloses a processing fixture for wind turbine casings, belonging to the field of tooling structure technology. It provides a processing fixture with less impact on the hoisting of wind turbine casings. The fixture includes a base with two pairs of support columns fixedly connected to it. A fixed shaft connects the pairs of support columns. A processing table is connected to the base via a hydraulic cylinder. A linkage arm is rotatably connected to the side of the processing table. The linkage arm includes an integral lower swing arm and an upper swing arm. The lower swing arm has a sliding groove and its lower end is rotatably connected to the processing table. The upper end of the lower swing arm is connected to the lower end of the upper swing arm, and a clamping plate is rotatably connected to the upper end of the upper swing arm. By designing the clamping plate on the linkage arm structure, this application allows the clamping plates to move closer together when the lifting platform descends, clamping the wind turbine casing; when the lifting platform rises, the clamping plates move away from each other, releasing the wind turbine casing and providing more space for it. This effectively reduces potential movement interference that may occur when the hoisting equipment picks up and places the wind turbine casing on the processing table.

Description

Technical Field

[0001] This application relates to the field of tooling structure technology, and in particular to a processing tooling for wind turbine casings. Background Technology

[0002] When processing wind turbine casings, the position of the workbench holding the wind turbine casings is usually fixed. That is to say, the position of the workbench that receives the wind turbine casings and the position that processes the wind turbine casings are unchanged. For large wind turbine casings, the only way to pick up and put them on the workbench is by hoisting. However, there are also movable structures on the workbench used to fix the wind turbine casings. The wind turbine casings under the hoisting equipment are prone to interference with the movable structures on the workbench. Summary of the Invention

[0003] The purpose of this application is to provide a machining tooling that has less impact on the hoisting of wind turbine casings.

[0004] To achieve the above objectives, this application provides a processing fixture for a wind turbine casing: it includes a base, on which two pairs of support columns are fixedly connected, and a fixed shaft is connected between the pairs of support columns. A processing table is also connected to the base via a hydraulic cylinder. A linkage arm is rotatably connected to the side of the processing table. The linkage arm includes an integral lower swing arm and an upper swing arm. The lower swing arm has a sliding groove suitable for the fixed shaft to pass through to form a sliding pair. The lower end of the lower swing arm is rotatably connected to the processing table, and the upper end of the lower swing arm is connected to the lower end of the upper swing arm. A clamping plate is rotatably connected to the upper end of the upper swing arm. There are two sets of combinations of the clamping plate, linkage arm, and fixed shaft, which are symmetrical about the processing table and can simultaneously compress and constrain both ends of the wind turbine casing.

[0005] As a preferred embodiment, the lower swing arm of the same linkage arm is perpendicular to the extension direction of the upper swing arm, which can effectively reduce the working space of the linkage arm.

[0006] As a preferred embodiment, the upper end of the lower swing arm is inclined away from the processing table, and the upper end of the upper swing arm is inclined towards the processing table. When the processing table rises, the upper swing arms move away from each other, and when the processing table falls, the upper swing arms move closer to each other.

[0007] As a preferred embodiment, a first hinge frame is fixedly connected to the side of the processing table, and the lower end of the lower swing arm cooperates with the first hinge frame to form a rotating pair, ensuring the degree of freedom of movement of the linkage arm.

[0008] As a preferred embodiment, a second hinge frame is fixedly connected to the opposite sides of the two clamping plates. The upper end of the upper swing arm cooperates with the second hinge frame to form a rotating pair. The rotation axis of the clamping plate 5 is located at the top, so that the clamping plate 5 can maintain a roughly vertical state by its own weight, thereby facilitating its contact with the roughly vertical end face of the wind turbine casing.

[0009] As a preferred embodiment, a rubber pad is fixedly connected to the upper surface of the processing table, and friction strips are fixedly connected to the opposite sides of the two clamping plates to increase the friction between the clamping plates and the end face of the wind turbine casing.

[0010] As a preferred embodiment, the fixed shaft includes an optical axis parallel to the processing table, with both ends of the optical axis fixedly connected to the support column. A pair of limiting rings are fixedly connected to the outer side of the optical axis, and the lower swing arm is located between the pair of limiting rings to prevent the linkage arm from moving along the axis of the optical axis and improve the stability of the clamping plate.

[0011] As a preferred embodiment, the lower end of the cylinder barrel of the hydraulic cylinder is fixedly connected to the upper surface of the base, and the movable end of the telescopic rod of the hydraulic cylinder is fixedly connected to the lower surface of the processing table, thereby driving the processing table to move up and down relative to the base.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing the clamping plates on the linkage arm structure and using a fixed shaft to restrict the movement of the linkage arm, when the lifting platform descends, the clamping plates move closer to each other to clamp the wind turbine casing; when the lifting platform rises, the clamping plates move further apart to release the wind turbine casing and give the wind turbine casing more space, effectively reducing the possible movement interference that the hoisting equipment may cause when picking up and placing the wind turbine casing on the processing table.

[0014] (2) By designing a linkage structure, the height of the processing table can be adjusted with less drive, and the clamping structure can be clamped and released at the same time. This tooling structure has low energy consumption and is relatively easy to control. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the machining tooling for the wind turbine casing.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the machining tooling for the wind turbine casing.

[0017] Figure 3 This is a three-dimensional structural diagram of the base of the machining tooling for the wind turbine casing, which is connected to the machining table via a hydraulic cylinder.

[0018] Figure 4This is a three-dimensional structural diagram of the connection between the linkage arm and the clamping plate of the machining tooling for the wind turbine casing.

[0019] Figure 5 A three-dimensional structural diagram of the clamping plate of the machining tooling for the wind turbine casing.

[0020] Figure 6 This is a three-dimensional structural diagram of the linkage arm of the machining tooling for the wind turbine casing.

[0021] In the diagram: 1. Base; 2. Hydraulic cylinder; 3. Machining table; 301. Rubber pad; 302. First hinge frame; 4. Linkage arm; 401. Lower swing arm; 402. Upper swing arm; 403. Slide groove; 5. Clamping plate; 501. Friction strip; 502. Second hinge frame; 6. Support column; 7. Fixed shaft; 701. Optical shaft; 702. Limiting ring. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] like Figure 1-6The processing fixture for the wind turbine casing shown includes a fixed base 1. A horizontal processing table 3 is connected to the base 1 via a hydraulic cylinder 2. There are usually two hydraulic cylinders 2. The lower end of the cylinder of each hydraulic cylinder 2 is fixedly connected to the upper surface of the base 1, and the movable end of the telescopic rod of each hydraulic cylinder 2 is fixedly connected to the lower surface of the processing table 3. A rubber pad 301 is fixedly connected to the upper surface of the processing table 3 to prevent the wind turbine casing from making hard contact with the processing table 3 and causing scratch damage.

[0027] A linkage arm 4 is rotatably connected to the side of the processing table 3. The linkage arm 4 specifically includes an integral lower swing arm 401 and an upper swing arm 402. The upper end of the lower swing arm 401 is connected to the lower end of the upper swing arm 402. Normally, the lower swing arm 401 and the upper swing arm 402 extend straight. However, the extension direction of the lower swing arm 401 and the upper swing arm 402 of the same linkage arm 4 is perpendicular. It should be noted that the upper end of the lower swing arm 401 is inclined away from the processing table 3, while the upper end of the upper swing arm 402 is inclined towards the processing table 3. The inclination directions of the lower swing arm 401 and the upper swing arm 402 are generally opposite.

[0028] Two pairs of support columns 6 are fixedly connected to the base 1, meaning there are a total of four support columns 6. A fixed shaft 7 connects the pairs of support columns 6. The processing table 3 is located between the two fixed shafts 7. The lower swing arm 401 has a sliding groove 403 for the fixed shaft 7 to pass through to form a sliding pair. The specific structure of the fixed shaft 7 includes an optical shaft 701 parallel to the processing table 3. The two ends of the optical shaft 701 are fixedly connected to the support columns 6. A pair of coaxial limiting rings 702 are fixedly connected to the outer side of the optical shaft 701. The lower swing arm 401 is located between the pair of limiting rings 702, which effectively suppresses the sliding of the linkage arm 4 along the axis of the optical shaft 701.

[0029] The lower end of the lower swing arm 401 is rotatably connected to the processing table 3. A first hinge frame 302 is fixedly connected to the side of the processing table 3. The lower end of the lower swing arm 401 and the first hinge frame 302 cooperate to form a rotating pair. The upper end of the upper swing arm 402 is rotatably connected to a clamping plate 5. A second hinge frame 502 is fixedly connected to the opposite sides of the two clamping plates 5. The upper end of the upper swing arm 402 and the second hinge frame 502 cooperate to form a rotating pair. Rubber friction strips 501 are fixedly connected to the opposite sides of the two clamping plates 5 to increase the friction between the clamping plates 5 and the end face of the wind turbine casing. There are two sets of clamping plates 5, linkage arm 4 and fixed shaft 7, which are symmetrical about the processing table 3. In this way, the two clamping plates 5 can move symmetrically and synchronously. The two clamping plates 5 contact the two ends of the wind turbine casing respectively, further reducing the movement of the wind turbine casing on the processing table 3.

[0030] Working principle: In the initial state, the hydraulic cylinder 2 is extended, the processing table 3 is at its upper limit, and the two clamping plates 5 are far apart. When in use, the wind turbine housing to be processed is placed on the rubber pad 301 of the processing table 3. Then the hydraulic cylinder 2 retracts, causing the processing table 3 to drop in height. At the same time, the processing table 3 drives the linkage arm 4 to drop. Under the constraint of the fixed shaft 7, the lower swing arm 401 slides down along the optical axis 701, and forces the upper end of the upper swing arm 402 to reduce the distance between them, that is, the distance between the two clamping plates 5 to reduce, until the two clamping plates 5 are pressed against the end face of the wind turbine housing by their own rubber friction strips 501. At this time, the wind turbine housing is stably constrained on the processing table 3, and the processing operation can be performed.

[0031] After processing, the hydraulic cylinder 2 extends to raise the processing table 3. At the same time, the processing table 3 drives the lower swing arm 401 to slide upward along the optical axis 701, and forces the upper end distance of the upper swing arm 402 to increase. The two clamping plates 5 are separated from the end face of the wind turbine casing. At this time, the wind turbine casing is no longer constrained and can be directly removed from the processing table 3.

[0032] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A machining fixture for a wind turbine casing, characterized in that: The system includes a base (1), on which two pairs of support columns (6) are fixedly connected. A fixed shaft (7) is connected between the pairs of support columns (6). A processing table (3) is also connected to the base (1) via a hydraulic cylinder (2). A linkage arm (4) is rotatably connected to the side of the processing table (3). The linkage arm (4) includes an integral lower swing arm (401) and an upper swing arm (402). The lower swing arm (401) has a sliding groove (403) for the fixed shaft (7) to pass through to form a sliding pair. The lower end of the lower swing arm (401) is rotatably connected to the processing table (3). The upper end of the lower swing arm (401) is connected to the lower end of the upper swing arm (402). A clamping plate (5) is rotatably connected to the upper end of the upper swing arm (402). There are two sets of combinations of the clamping plate (5), the linkage arm (4), and the fixed shaft (7), which are symmetrical about the processing table (3).

2. The machining fixture for the wind turbine casing as described in claim 1, characterized in that: The lower swing arm (401) of the same linkage arm (4) is perpendicular to the extension direction of the upper swing arm (402).

3. The machining fixture for the wind turbine casing as described in claim 2, characterized in that: The upper end of the lower swing arm (401) is inclined away from the processing table (3), and the upper end of the upper swing arm (402) is inclined towards the processing table (3).

4. The machining fixture for the wind turbine casing as described in claim 3, characterized in that: The processing table (3) is fixedly connected to a first hinge frame (302) on its side, and the lower end of the lower swing arm (401) cooperates with the first hinge frame (302) to form a rotating pair.

5. The machining fixture for the wind turbine casing as described in claim 4, characterized in that: The two clamping plates (5) are fixedly connected to the opposite sides of each other with a second hinge frame (502), and the upper end of the upper swing arm (402) cooperates with the second hinge frame (502) to form a rotating pair.

6. The machining fixture for the wind turbine casing as described in claim 5, characterized in that: A rubber pad (301) is fixedly connected to the upper surface of the processing table (3), and friction strips (501) are fixedly connected to the opposite sides of the two clamping plates (5).

7. The machining tooling for wind turbine casing as described in any one of claims 1 to 6, characterized in that: The fixed shaft (7) includes an optical shaft (701) parallel to the processing table (3). The two ends of the optical shaft (701) are fixedly connected to the support column (6). A pair of limiting rings (702) are fixedly connected to the outer side of the optical shaft (701). The lower swing arm (401) is located between the pair of limiting rings (702).

8. The machining fixture for the wind turbine casing as described in claim 7, characterized in that: The lower end of the cylinder of the hydraulic cylinder (2) is fixedly connected to the upper surface of the base (1), and the movable end of the telescopic rod of the hydraulic cylinder (2) is fixedly connected to the lower surface of the processing table (3).

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