A hot-pressing tool for a pumped storage stator coil

Abstract

The utility model discloses a kind of hot-pressing tool of pumped storage stator coil, it is located on mounting bracket, for to fixed profiled part, comprising: buckling structure, buckling structure is located on profiled part, buckling structure is used to be connected to profiled part, extrusion structure, it is located on mounting bracket, extrusion structure and buckling structure contact, bending structure, it is located on mounting bracket, it is used to change the shape of profiled part.The hot-pressing tool of pumped storage stator coil, by the collaborative design of buckling structure, extrusion structure, bending structure and corner fixing structure, realizes the integration of fixed, extrusion, bending function during pumped storage stator coil hot-pressing process, effectively improve the versatility and operation convenience of tool, ensure the uniformity of coil pressure distribution and the stability of corner part, and then improve the forming quality and production efficiency of stator coil, solve the problem that traditional tool function disperses, limited adaptability and forming quality is not good.

Description

Technical Field

[0001] This utility model relates to the field of hydro-generator manufacturing technology, specifically a hot pressing tooling for a pumped storage stator coil. Background Technology

[0002] In the stator coil manufacturing process of pumped storage power stations, hot pressing fixtures are the core equipment to ensure the curing quality and geometric accuracy of the coil insulation layer. As a key component of the motor, the insulation performance and structural stability of the stator coil directly affect the operating efficiency and safety reliability of the power station unit. Therefore, stringent requirements are placed on the positioning accuracy, pressure uniformity, and shape control during the hot pressing process.

[0003] Traditional hot pressing fixtures generally suffer from problems such as fragmented functions and limited adaptability. Existing equipment often separates functions such as fixing, extrusion, and bending, resulting in loose fixture structures, cumbersome operation procedures, and difficulty in meeting the demands of high-efficiency production. Furthermore, due to a lack of targeted collaborative design, traditional fixtures are prone to insecure fixing and unbalanced pressure transmission when handling coil corners and bending areas, affecting the overall coil forming quality. Although some technologies have improved the process by optimizing individual structural parameters, they have failed to address the technical pain points of functional integration and precise control at the system level, thus hindering the upgrading of stator coil manufacturing processes. Utility Model Content

[0004] The purpose of this invention is to provide a hot pressing fixture for pumped storage stator coils to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot pressing fixture for a pumped storage stator coil, mounted on a mounting frame for fixing a shaped component, comprising:

[0006] A snap-fit ​​structure is provided on the shaping component, and the snap-fit ​​structure is used to snap the shaping component into place.

[0007] An extrusion structure is provided on the mounting bracket, and the extrusion structure is in contact with the fastening structure for fixing the shaping part;

[0008] A bending structure, provided on the mounting bracket, is used to change the shape of the shaping component.

[0009] Preferably, the fastening structure includes a fastening frame disposed on one side of the shaping component, and the fastening frame is further provided with a support plate for bending and supporting the shaping component. A fastening plate is fastened on the fastening frame, and the fastening plate is used to limit the positioning of the shaping component.

[0010] Preferably, the extrusion structure includes a support rod disposed on the mounting frame, a connecting shaft disposed on the support rod, a rotating base connected to the connecting shaft, a connector head disposed at one end of the support rod, a connecting beam connected to the connector head, an extrusion cylinder disposed at one end of the connecting beam, and the extrusion cylinder being in contact with the fastening plate.

[0011] Preferably, the connector head is also provided with the connecting shaft for connecting with the connecting beam.

[0012] Preferably, the rotating base is provided with a push cylinder, one side of the connecting beam is provided with a connecting frame, the output end of the push cylinder is connected to the connecting frame, and the connecting shaft is provided at the connection between the push cylinder and the connecting frame.

[0013] Preferably, the bending structure includes a base disposed on the mounting frame, a lifting rod disposed on the base, a ring fitting sleeved on the lifting rod, a bending rod disposed on one side of the ring fitting, and the shaping component wrapped around the bending rod.

[0014] Preferably, the mounting frame is further provided with a corner fixing structure, the corner fixing structure including a support plate provided on the mounting frame, the shaping component being provided on the inner side of the support plate, and the fastening plate being provided on the shaping component.

[0015] Preferably, the outer side of the support plate is provided with a support rod, the support rod is connected to a connecting bridge, the connecting bridge is provided with a pressing rod, and the output end of the pressing rod is in contact with the fastening plate provided on the support plate.

[0016] Preferably, the corner fixing structure is disposed between the fastening structure and the bending structure, and the corner fixing structure is used to fix the bent part of the shaping part.

[0017] Preferably, the mounting bracket is further provided with a protective plate, which is used to prevent accidental damage to the shaping component.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The hot pressing fixture for the pumped storage stator coil, through the coordinated design of the snap-fit ​​structure, extrusion structure, bending structure and corner fixing structure, realizes the integrated function of fixing, extrusion and bending during the hot pressing process of the pumped storage stator coil, effectively improving the versatility and ease of operation of the fixture, ensuring the uniformity of coil pressure distribution and the stability of the corner parts, thereby improving the forming quality and production efficiency of the stator coil, and solving the problems of the traditional fixture's dispersed functions, limited adaptability and poor forming quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3 This is a schematic diagram showing the combined state of the extrusion structure and the snap-fit ​​structure of this utility model;

[0022] Figure 4 This is a schematic diagram showing the separation state of the extrusion structure and the snap-fit ​​structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the shaping part of this utility model.

[0024] In the diagram: 1. Mounting bracket; 11. Protective plate; 2. Extrusion structure; 21. Support rod; 22. Connecting shaft; 23. Rotating base; 24. Push cylinder; 25. Connector; 26. Connecting beam; 27. Extrusion cylinder; 28. Connecting frame; 3. Fastening structure; 31. Fastening frame; 32. Fastening plate; 311. Support plate; 4. Shaping component; 5. Bending structure; 51. Base; 52. Lifting rod; 53. Ring assembly; 54. Bending rod; 6. Corner fixing structure; 61. Bearing plate; 62. Bearing rod; 63. Connecting bridge; 64. Extrusion rod. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a hot pressing fixture for a pumped storage stator coil, which is mounted on a mounting frame 1 for fixing a shaping part 4. The mounting frame 1 is also provided with a protective plate 11, which is used to prevent accidents involving the shaping part 4 and to ensure that if the shaping part 4 rebounds during extrusion deformation, it will not cause injury to the operator.

[0027] The fastening structure 3 is mounted on the shaping component 4 and is used to engage the shaping component 4. The fastening structure 3 includes a fastening frame 31 located on one side of the shaping component 4. The fastening frame 31 supports the shaping component 4 and limits the deformation of its bottom, ensuring that the shaping component 4 meets the dimensional requirements for installation. The fastening frame 31 is an L-shaped straight metal plate. The fastening frame 31 also has a support plate 311 for supporting the bending of the shaping component 4. The support plate 311 supports the bending of the shaping component 4. The fastening frame 31 is supported by a fastening plate 32, which is fastened to the fastening frame 31. The fastening plate 32 is used to limit the positioning of the shaping part 4. The fastening plate 32 is fastened to the top of the shaping part 4. There is a certain space between the inner side of the fastening plate 32 and the fastening frame 31 to accommodate the shaping part 4. The fastening plate 32 and the fastening frame 31 are not connected. The fastening plate 32 is just placed on the fastening frame 31. The fastening plate 32 is pressed downward by the extrusion structure 2. The exact angle can be adjusted, which is about 45 degrees. The fastening plate 32 is provided with an inclined surface for contacting the extrusion structure 2.

[0028] An L-shaped straight metal plate fastening frame 31 located on one side of the shaping component 4 supports the shaping component 4 and limits its bottom deformation. The support plate 311 on the fastening frame 31 supports the bent parts of the shaping component 4. A fastening plate 32 is placed on the fastening frame 31, and a space for accommodating the shaping component 4 is formed between the fastening plate 32 and the fastening frame 31. The fastening plate 32 limits the shaping component 4 under the downward pressing action of the extrusion structure 2, and the angle of the fastening plate 32 is adjustable. The adjustment method is to adjust the angle of the extrusion structure 2 to about 45 degrees. Its inclined surface contacts the extrusion structure 2. The fastening plate 32 achieves the snapping of the shaping component 4 through the coordinated action of the components.

[0029] The extrusion structure 2 is mounted on the mounting frame 1 and contacts the fastening structure 3 for fixing the shaping part 4. The extrusion structure 2 includes a support rod 21 mounted on the mounting frame 1, which supports the overall structure of the extrusion structure 2. The support rod 21 is equipped with a connecting shaft 22. There are three connecting shafts 22 on a single extrusion structure 2. The number of extrusion structures 2 is as follows: the extrusion structures 2 are divided into two groups. One group is arranged in an array, and the second group of extrusion structures 2 is arranged in a mirror image opposite to the first group of extrusion structures 2. A rotating base 23 is connected to the connecting shaft 22. The rotating base 23 is affected by the connecting shaft 22 and can drive the push cylinder 24 to rotate accordingly. The adaptive rotation means that when the push cylinder 24 pushes the connecting beam 26, the bottom of the push cylinder 24 is affected by the angle and rotates. One end of the support rod 21 is equipped with a connector. 25. Connector 25 is used to connect with connecting beam 26. The connection method is by inserting with connecting shaft 22. Connector 25 is connected to connecting beam 26. Connecting beam 26 can also rotate on connector 25, so that it can rotate at a certain angle when pushed by push cylinder 24. Push cylinder 24 is used to adjust the angle of extrusion cylinder 27 provided on connecting beam 26. One end of connecting beam 26 is provided with extrusion cylinder 27. Extrusion cylinder 27 is used to extrude fastening plate 32. Extrusion cylinder 27 is in contact with fastening plate 32. Connector 25 is also provided with connecting shaft 22 for connecting with connecting beam 26. Rotating base 23 is provided with push cylinder 24. One side of connecting beam 26 is provided with connecting frame 28. The output end of push cylinder 24 is connected to connecting frame 28. Connecting shaft 22 is provided at the connection between push cylinder 24 and connecting frame 28.

[0030] The support rod 21 on the mounting frame 1 supports the overall structure. The connecting shaft 22 on the support rod 21 is connected to the rotating base 23. The push cylinder 24 on the rotating base 23 pushes the connecting beam 26 through the connecting shaft 22 at the connection point of the connecting frame 28 on one side of the connecting beam 26. The connector 25 at one end of the support rod 21 is connected to the connecting beam 26 through the connecting shaft 22, so that the connecting beam 26 can rotate on the connector 25. Then, under the push of the push cylinder 24, it can rotate at a certain angle to adjust the angle of the pressing cylinder 27 at one end of the connecting beam 26. At the same time, the rotating base 23 will adapt to the angle change when the push cylinder 24 moves. Finally, the pressing cylinder 27 presses the fastening plate 32. The pressing structure 2 is divided into two groups that are set in mirror opposite positions. One group is arranged in an array. The fixing of the shaping part 4 is achieved through the coordinated action of each component.

[0031] The bending structure 5 is mounted on the mounting frame 1 and is used to change the shape of the shaping part 4. The bending structure 5 includes a base 51 mounted on the mounting frame 1. The base 51 supports the lifting rod 52. The lifting rod 52 is mounted on the base 51 and supports the ring assembly 53. The ring assembly 53 can also move up and down on the lifting rod 52 to adjust the position of the ring assembly 53 on the lifting rod 52. The ring assembly 53 is sleeved on the lifting rod 52. A bending rod 54 is provided on one side of the ring assembly 53. The main purpose of adjusting the position of the ring assembly 53 is to adjust the height of the bending rod 54 for adapting the shaping part 4. The shaping part 4 is wound around the bending rod 54.

[0032] The base 51 on the mounting frame 1 supports the lifting rod 52. The lifting rod 52 supports the ring assembly 53 sleeved on it and allows the ring assembly 53 to move up and down on its rod body to adjust its position. The bending rod 54 on one side of the ring assembly 53 adjusts its height according to the position of the ring assembly 53, thereby adapting to the processing requirements of the shaping part 4. Finally, the shape of the shaping part 4 is changed by the shaping part 4 being wrapped around the bending rod 54.

[0033] The mounting frame 1 is also provided with a corner fixing structure 6. The function of the corner fixing structure 6 is similar to that of the extrusion structure 2, except that the corner fixing structure 6 is suitable for the position of the shaping part 4 with a small bending straight length. The corner fixing structure 6 includes a support plate 61 on the mounting frame 1. The support plate 61 is used to support the bending part of the shaping part 4. The shaping part 4 is provided on the inner side of the support plate 61. The fastening plate 32 is provided on the shaping part 4. The support rod 62 is provided on the outer side of the support plate 61. The support rod 21 is used to support the connecting bridge 63. The connecting bridge 63 is connected to the support rod 62. The connecting bridge 63 is provided with an extrusion rod 64. The extrusion rod 64 is used to extrude the fastening plate 32 downward. The output end of the extrusion rod 64 is in contact with the fastening plate 32 provided on the support plate 61. The corner fixing structure 6 is located between the fastening structure 3 and the bending structure 5. The corner fixing structure 6 is used to fix the bending part of the shaping part 4.

[0034] The corner fixing structure 6 is located on the mounting frame 1 and between the fastening structure 3 and the bending structure 5. It is suitable for the position of the shaping part 4 with a small bending straight length. The bearing plate 61 on the mounting frame 1 supports the bending part of the shaping part 4. The shaping part 4 and the fastening plate 32 are set on the inner side of the bearing plate 61. The bearing rod 62 on the outer side of the bearing plate 61 is connected to the connecting bridge 63. The support rod 21 supports the connecting bridge 63. The extrusion rod 64 on the connecting bridge 63 contacts the fastening plate 32 on the bearing plate 61 through the output end and extrudes it downward, thereby fixing the bending part of the shaping part 4.

[0035] When the hot pressing fixture for the pumped storage stator coil is used, the mounting frame 1 provides support for the overall structure, and the guard plate 11 on it prevents the shaping part 4 from accidentally rebounding and injuring the operator. The shaping part 4 is placed in the space between the fastening frame 31 and the fastening plate 32 of the fastening structure 3. The fastening frame 31 and the support plate 311 provide support and bottom limit for the shaping part 4. The pushing cylinder 24 of the pressing structure 2 pushes the connecting beam 26 to rotate around the connecting shaft 22 on the connecting head 25, adjusting the angle of the pressing cylinder 27. At the same time, the rotating base 23 rotates adaptively with the connecting shaft 22, so that the pressing cylinder 27 rotates. 7. Pressure is applied to the inclined surface of the fastening plate 32, causing the fastening plate 32 to be positioned at approximately a 45-degree angle to limit the shaping part 4; the ring assembly 53 of the bending structure 5 moves up and down along the lifting rod 52, adjusting the height of the bending rod 54 to match the shaping part 4, and the shaping part 4 is wrapped around the bending rod 54 to achieve a shape change; the bearing plate 61 of the corner fixing structure 6 supports the small bending part of the shaping part 4, and the extrusion rod 64 applies pressure to the fastening plate 32 through the support of the bearing rod 62 via the connecting bridge 63, forming a cooperative fixation with the extrusion structure 2, and finally the hot pressing fixation of the shaping part 4 is completed through the linkage of each structure.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing fixture for a pumped storage stator coil, mounted on a mounting frame (1) for fixing a shaped component (4), characterized in that, include: The fastening structure (3) is provided on the shaping part (4) and is used to snap the shaping part (4); An extrusion structure (2) is provided on the mounting bracket (1), and the extrusion structure (2) and the fastening structure (3) are in contact for fixing the shaping part (4); A bending structure (5) is provided on the mounting bracket (1) and is used to change the shape of the shaping component (4).

2. The hot pressing fixture for a pumped storage stator coil according to claim 1, characterized in that: The fastening structure (3) includes a fastening frame (31) provided on one side of the shaping part (4). The fastening frame (31) is also provided with a support plate (311) for bending and supporting the shaping part (4). A fastening plate (32) is fastened on the fastening frame (31) and the fastening plate (32) is used to limit the shaping part (4).

3. The hot pressing fixture for a pumped storage stator coil according to claim 2, characterized in that: The extrusion structure (2) includes a support rod (21) on the mounting frame (1), a connecting shaft (22) on the support rod (21), a rotating base (23) connected to the connecting shaft (22), a connector (25) at one end of the support rod (21), a connecting beam (26) connected to the connector (25), an extrusion cylinder (27) at one end of the connecting beam (26), and the extrusion cylinder (27) in contact with the fastening plate (32).

4. The hot pressing fixture for a pumped storage stator coil according to claim 3, characterized in that: The connector (25) is provided with the connecting shaft (22) for connecting with the connecting beam (26).

5. The hot pressing fixture for a pumped storage stator coil according to claim 3, characterized in that: The rotating base (23) is provided with a push cylinder (24), and a connecting frame (28) is provided on one side of the connecting beam (26). The output end of the push cylinder (24) is connected to the connecting frame (28), and the connecting shaft (22) is provided at the connection between the push cylinder (24) and the connecting frame (28).

6. The hot pressing fixture for a pumped storage stator coil according to claim 1, characterized in that: The bending structure (5) includes a base (51) on the mounting bracket (1), a lifting rod (52) on the base (51), a ring sleeve (53) on the lifting rod (52), a bending rod (54) on one side of the ring sleeve (53), and the shaping part (4) is wrapped around the bending rod (54).

7. A hot pressing fixture for a pumped storage stator coil according to claim 2 or 3, characterized in that: The mounting frame (1) is also provided with a corner fixing structure (6), which includes a support plate (61) on the mounting frame (1), and the shaping component (4) is provided on the inner side of the support plate (61), and the fastening plate (32) is provided on the shaping component (4).

8. The hot pressing fixture for a pumped storage stator coil according to claim 7, characterized in that: The outer side of the support plate (61) is provided with a support rod (62), a connecting bridge (63) is connected to the support rod (62), and a pressing rod (64) is provided on the connecting bridge (63). The output end of the pressing rod (64) is in contact with the fastening plate (32) provided on the support plate (61).

9. A hot-pressing fixture for a pumped storage stator coil according to claim 7 or 8, characterized in that: The corner fixing structure (6) is located between the fastening structure (3) and the bending structure (5), and the corner fixing structure (6) is used to fix the bending part of the shaping part (4).

10. The hot pressing fixture for a pumped storage stator coil according to claim 1, characterized in that: The mounting bracket (1) is also provided with a guard plate (11), which is used to prevent the shaping part (4) from being damaged.

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