Welding tool for wind wheel of multi-station wind turbine

Abstract

The utility model discloses a multi-station wind turbine wind wheel welding tool which comprises a tool base, a multi-station linkage positioning clamping mechanism comprises sliding blocks arranged in sliding grooves in a sliding mode, a clamping plate is fixedly arranged on one side of the top end of each sliding block, a double-thread lead screw is arranged in the two sliding grooves located in the middle in a penetrating mode, and the two ends of the double-thread lead screw are provided with clamping grooves. Two limiting rods are inserted into the inner walls of the other four sliding grooves in a penetrating mode, and the outer walls of the two ends of the two limiting rods are sleeved with springs. The speed reduction motor is started to drive the double-thread lead screw to rotate, the sliding blocks in the sliding grooves in the middle position drive the clamping plates to get close to each other and clamp the wind wheel at the upper end of the supporting table, under connection of the connecting strips, the sliding blocks in the sliding grooves in the two sides drive the clamping plates to move along with the sliding blocks to get close to clamp the wind wheel, and linkage is achieved. And in the later period, the connecting strips are removed, the sliding blocks on the two sides can automatically restore to the original positions under the action of the springs, reconnection and use are facilitated, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine rotor processing, specifically a welding fixture for a multi-station wind turbine rotor. Background Technology

[0002] Wind turbine rotors are made of cast iron. The blades on the wind turbine rotor play a major role. The shape and size of the wind turbine rotor are closely related to the performance of the wind turbine. Most wind turbine rotors are mainly composed of an upper connecting plate, a middle rotor, and a lower connecting plate. A through hole is opened in the middle of the rotor to facilitate docking with the wind turbine. In the manufacturing process of this type of rotor, welding is generally used to improve processing efficiency. Therefore, this welding fixture plays a very important role in the process.

[0003] Existing welding fixtures have a single clamping station, and each individual clamping station requires separate control, making it impossible to operate multiple stations simultaneously, thus reducing the practicality of the fixtures. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a welding fixture for a multi-station wind turbine rotor, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, this utility model proposes a welding fixture for a multi-station wind turbine rotor, including a fixture base. The upper end of the fixture base is equipped with a multi-station linkage positioning and clamping mechanism. Three sliding grooves are equally spaced on both sides of the top of the fixture base. The multi-station linkage positioning and clamping mechanism includes a slider slidably disposed in each sliding groove. A clamping plate is fixedly provided on one side of the top of each slider. Two double-threaded screws are inserted into the two middle sliding grooves, and the outer walls of both ends of the double-threaded screws are threadedly connected to the inner walls of two of the sliders. Two limiting rods are inserted into the inner walls of the other four sliding grooves, and the outer walls of both ends of the two limiting rods are inserted into and connected to the inner walls of the other four sliders. Springs are sleeved on the outer walls of both ends of the two limiting rods, and one end of each of the four springs is fixedly connected to one side of the other four sliders.

[0006] In one example, the tooling base has three support platforms fixedly installed at equal intervals at the middle position of the six slides, and each of the three support platforms has a limiting shaft fixedly installed at its top.

[0007] In one example, a connecting frame is fixedly provided on one side of the outer wall of each of the clamps, and two connecting strips are inserted through the inner walls of the two connecting frames located in the middle position.

[0008] In one example, two of the connecting strips have slots on one side, and the other two connecting strips have pins fixed on one side, with the outer walls of the two pins interlocking with the inner walls of the two slots respectively.

[0009] In one example, a limiting block is fixedly provided at one end of one side of the inner wall of each groove, and a reduction motor is fixedly provided at the middle position of one side of the outer wall of the tooling base, and one end of the double threaded screw is fixedly connected to the output end of the reduction motor.

[0010] In one example, a switch panel is fixedly provided on one side of the outer wall of the tooling base, and a geared motor switch is provided on one side of the switch panel. The geared motor is electrically connected to an external power supply through the geared motor switch.

[0011] The welding fixture for a multi-station wind turbine rotor proposed in this utility model can bring the following beneficial effects:

[0012] This multi-station wind turbine rotor welding fixture features a multi-station linkage positioning and clamping structure composed of a sliding groove, slider, clamping plate, double-threaded screw, limit rod, spring, connecting frame, and connecting strip. In use, the connecting frame at the upper end of the two clamping plates in the middle position supports the connecting strip, allowing one end to rest on the connecting frame on one side of the two clamping plates, thus connecting the two clamping plates together. The geared motor drives the double-threaded screw to rotate, causing the slider in the middle sliding groove, along with the clamping plate, to move closer together and clamp the wind turbine rotor on the upper end of the support platform. With the connection of the connecting strip, the sliders in the two side sliding grooves also move closer together with their clamping plates, achieving linkage and enabling multi-station simultaneous operation. Afterwards, removing the connecting strip allows the sliders on both sides to automatically return to their original positions under the action of the springs. Furthermore, the limit blocks in each sliding groove ensure that each slider returns to the same position, facilitating reconnection and improving the practicality of the device.

[0013] This welding fixture for a multi-station wind turbine rotor features a detachable and independently movable connection structure consisting of a connecting frame, connecting strips, slots, and pins. If not all workstations need to be used simultaneously, shorter connecting strips can be obtained by separating the pins at the upper ends of the two connecting strips from the slots. These shorter connecting strips can then connect the middle position and the sliders and clamps on one side, changing the number of operating workstations. This makes the entire welding fixture more flexible during welding clamping, thereby improving the ease of use of the device. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the multi-station linkage structure of the slider, clamping plate, and connecting frame of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the detachable connecting strip of this utility model.

[0018] In the diagram: 1. Tooling base; 2. Slide groove; 3. Slider; 4. Clamping plate; 5. Double threaded screw; 6. Limiting rod; 7. Spring; 8. Support platform; 9. Limiting shaft; 10. Connecting frame; 11. Connecting strip; 12. Slot; 13. Pin; 14. Limiting block; 15. Gear motor. Detailed Implementation

[0019] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0020] Example 1: This utility model provides the following... Figure 1-3 The welding fixture for a multi-position wind turbine rotor shown includes a fixture base 1. Three support platforms 8 are fixedly fixed at equal intervals at the middle position of six slide grooves 2 at the top of the fixture base 1. Each of the three support platforms 8 is fixedly equipped with a limiting shaft 9 at the top. A limiting block 14 is fixedly installed at one end of one side of the inner wall of each slide groove 2. A geared motor 15 is fixedly installed at the middle position of one side of the outer wall of the fixture base 1, and one end of the double threaded screw 5 is fixedly connected to the output end of the geared motor 15. A switch panel is fixedly installed on one side of the outer wall of the fixture base 1. A geared motor switch is opened on one side of the switch panel, and the geared motor 15 is electrically connected to an external power supply through the geared motor switch.

[0021] Example 2: This utility model provides the following... Figure 2 The welding fixture for a multi-station wind turbine rotor shown has a multi-station linkage positioning and clamping mechanism at the upper end of the fixture base 1. Three sliding grooves 2 are equally spaced on both sides of the top of the fixture base 1. The multi-station linkage positioning and clamping mechanism includes a slider 3 slidably disposed in each sliding groove 2. A clamping plate 4 is fixedly provided on one side of the top of each slider 3. A double threaded screw 5 is inserted in two of the middle sliding grooves 2, and the outer walls of the two ends of the double threaded screw 5 are threadedly connected to the inner walls of two of the sliders 3 respectively. Two limiting rods 6 are inserted in the inner walls of the other four sliding grooves 2, and the outer walls of the two limiting rods 6 are inserted in the inner walls of the other four sliders 3 respectively. Springs 7 are sleeved on the outer walls of the two limiting rods 6, and one end of each of the four springs 7 is fixedly connected to one side of the other four sliders 3 respectively.

[0022] Example 3: This utility model provides the following... Figure 3 The welding fixture for a multi-position wind turbine rotor shown has a connecting frame 10 fixed on one side of the outer wall of each clamp 4. Two connecting strips 11 are inserted through the inner wall of the two connecting frames 10 located in the middle position. One side of each of the two connecting strips 11 has a slot 12. The other two connecting strips 11 have pins 13 fixed on one side, and the outer wall of the two pins 13 is respectively inserted and connected to the inner wall of the two slots 12.

[0023] Working Principle: When using the multi-station wind turbine rotor welding fixture in this design, the clamping plate 4 at the upper end of the device needs to be installed in the corresponding groove 2 via the slider 3. Before clamping, the wind turbine rotor needs to be placed on the corresponding support platform 8 and limited by the limiting shaft 9 to ensure normal operation of the entire device. This design incorporates a multi-station linkage positioning and clamping structure consisting of the groove 2, slider 3, clamping plate 4, double threaded screw 5, limiting rod 6, spring 7, connecting frame 10, and connecting strip 11. During use, the connecting frame 10 at the upper end of the two clamping plates 4 in the middle position supports the connecting strip 11, allowing one end to rest on the connecting frame 10 on one side of the two clamping plates 4, thus connecting the two clamping plates 4 together. The reduction motor 15 drives the double threaded screw 5 to rotate, causing the slider 3 in the groove 2 in the middle position to bring the clamping plates 4 closer together and clamp the rotor at the upper end of the support platform 8. The connection of the connecting strip 11 causes the sliders 3 in the two side slides 2 to move and clamp along with the clamping plates 4, achieving linkage and enabling multi-station operation. After the connecting strip 11 is removed, the sliders 3 on both sides can automatically return to their original positions under the action of the spring 7. Furthermore, under the action of the limiting block 14 in each slide 2, each slider 3 returns to the same position, facilitating reconnection and use, thereby improving the practicality of the device. The device is equipped with a detachable and independently linked connection structure consisting of a connecting frame 10, connecting strip 11, slot 12, and pin 13. If it is not necessary to use all work positions together, a shorter connecting strip 11 can be obtained by separating the pin 13 at the upper end of the two connecting strips 11 from the slot 12. This can connect the middle position and the sliders 3 and clamping plates 4 on one side, changing the number of operating work positions and making the entire welding fixture more flexible during welding clamping, thereby improving the convenience of using the device.

[0024] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0025] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A welding fixture for a multi-position wind turbine rotor, comprising: Tooling base (1), the upper end of the tooling base (1) is provided with a multi-station linkage positioning and clamping mechanism, and three sliding grooves (2) are equally spaced on both sides of the top of the tooling base (1). The multi-station linkage positioning and clamping mechanism is characterized by: a slider (3) slidably disposed in each slide groove (2), a clamping plate (4) fixedly disposed on one side of the top of each slider (3), a double threaded screw (5) inserted in two of the slide grooves (2) located in the middle position, and the outer walls of the two ends of the double threaded screw (5) are respectively threadedly connected to the inner walls of two of the sliders (3), and two limiting rods (6) are inserted in the inner walls of the other four slide grooves (2), and the outer walls of the two limiting rods (6) are respectively inserted in the inner walls of the other four sliders (3), and springs (7) are sleeved on the outer walls of the two limiting rods (6), and one end of the four springs (7) is respectively fixedly connected to one side of the other four sliders (3).

2. The welding fixture for a multi-station wind turbine rotor according to claim 1, characterized in that: The tooling base (1) has three support platforms (8) fixed at equal intervals at the middle position of the six slides (2), and the top of each of the three support platforms (8) is fixed with a limiting shaft (9).

3. The welding fixture for a multi-station wind turbine rotor according to claim 1, characterized in that: A connecting frame (10) is fixedly provided on one side of the outer wall of each of the clamps (4), wherein two connecting strips (11) are inserted through the inner walls of the two connecting frames (10) located in the middle position.

4. The welding fixture for a multi-station wind turbine rotor according to claim 3, characterized in that: One side of each of the two connecting strips (11) is provided with a slot (12), and the other two connecting strips (11) are fixedly provided with a pin (13) on one side, and the outer wall of the two pins (13) is respectively inserted and connected to the inner wall of the two slots (12).

5. The welding fixture for a multi-station wind turbine rotor according to claim 1, characterized in that: A limiting block (14) is fixedly provided at one end of the inner wall of each of the slide grooves (2), and a reduction motor (15) is fixedly provided at the middle position of the outer wall of the tooling base (1), and one end of the double threaded screw (5) is fixedly connected to the output end of the reduction motor (15).

6. The welding fixture for a multi-station wind turbine rotor according to claim 5, characterized in that: A switch panel is fixedly provided on one side of the outer wall of the tooling base (1), and a geared motor switch is provided on one side of the switch panel. The geared motor (15) is electrically connected to an external power supply through the geared motor switch.

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