A coil former for winding a transformer coil

Abstract

The utility model discloses a winding frame of winding transformer coil, including base, the length adjusting mechanism of being used for adapting the length of different length specifications's transformer coil is provided with to the top of base, the inside diameter adjusting mechanism of being used for fixing the inside diameter of different inside diameter's transformer coil is provided with to one side of length adjusting mechanism, the winding mechanism of being used for winding to transformer coil is provided with to the top of base, one side is provided with the compacting mechanism of compacting transformer line in winding process, the utility model discloses through length adjusting mechanism: through the linkage of first electric guide rail and support, can adjust the coil axial length, compared with the single size of traditional fixed type support frame, the adaptation efficiency promotes, inside diameter adjusting mechanism: pneumatic finger cooperation screw rod fine adjustment, can be compatible with a variety of coil inside diameter, solve the problem that the existing jaw assembly needs frequently to change the clamp.

Description

Technical Field

[0001] This utility model relates to the field of transformer coil winding technology, specifically a winding frame for winding transformer coils. Background Technology

[0002] The winding frame for winding transformer coils is a key structural component in electromagnetic devices used to support the winding of conductors. Its function is to provide mechanical support and insulating positioning for the copper / enameled wire. The winding frame is the supporting carrier of the winding, while the winding is an electromagnetic functional unit made of wire. Together, they constitute the circuit part of the transformer. For example, layered windings rely on a frame to achieve axial alignment, while disc windings are completed by combining wire discs.

[0003] Referring to the existing Chinese patent with publication number CN221200932U, a winding frame for winding transformer coils is disclosed, which relates to the field of winding frame technology. It includes a fixed frame, a support frame fixedly connected to the top of the fixed frame, a first motor fixedly installed on the outer surface of the support frame, and a first threaded bar fixedly connected to the output end of the first motor.

[0004] The aforementioned winding frame for winding transformer coils can quickly wind coils onto a bobbin. By incorporating a second motor, a second threaded rod, and a slider, copper wire can be evenly wound onto the bobbin surface. The presence of abutments and plates allows the abutments to slide within the rotating rod, quickly fixing the bobbin to the rod. It also adapts to different bobbin sizes, enhancing its versatility. Limiting protrusions limit the position of the abutments, and a spherical end reduces friction between the abutment and the abutment. However, this winding frame still has some drawbacks, such as the inability to accommodate transformer coils of different sizes using a fixed clamping assembly, and the lack of a real-time clamping mechanism, which can easily lead to coil loosening. Therefore, we need to propose a winding frame for winding transformer coils. Utility Model Content

[0005] The purpose of this invention is to provide a winding frame for winding transformer coils, which has the advantages of adapting to transformer coils of different sizes and a real-time detection and clamping mechanism, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a winding frame for winding transformer coils, including a base, a length adjustment mechanism for adapting to transformer coils of different lengths is provided above the base, an inner diameter adjustment mechanism for fixing transformer coils of different inner diameters is provided on one side of the length adjustment mechanism, a winding mechanism for winding the transformer coil is provided above the base, and a clamping mechanism for pressing the transformer wire during the winding process is provided on one side.

[0007] Preferably, the length adjustment mechanism includes a first electric guide rail, which is disposed above the base. A bracket is provided on the top of the first electric guide rail, and a through hole is provided on one side of the bracket.

[0008] Preferably, the inner diameter adjustment mechanism includes a mounting plate, which is disposed on one side of the bracket. A pneumatic finger is disposed on the side of the mounting plate away from the bracket. The output end of the pneumatic finger is adapted to a through hole. A first screw is disposed on one side of the mounting plate, which extends through the mounting plate into the interior of the bracket.

[0009] Preferably, the winding mechanism includes a support leg, which is disposed on the top of the base. A mounting ring is disposed above the support leg, and an annular electric guide rail is disposed on one side of the mounting ring. A wire feeding mechanism is disposed at the output end of the annular electric guide rail.

[0010] Preferably, the wire feeding mechanism includes a first mounting block disposed on the surface of the output end of the annular electric guide rail. A mounting rod is disposed on one side of the first mounting block, and a second mounting block is disposed at the end of the mounting rod away from the first mounting block. A second nut is disposed on one side of the second mounting block, and the second nut extends through the second mounting block into the interior of the mounting rod.

[0011] Preferably, the clamping mechanism includes a support block, which is disposed above the annular electric guide rail. A second electric guide rail is disposed on one side of the support block. A placement plate is disposed at the output end of the second electric guide rail. A pressure sensor is disposed inside the placement plate. A pressure rod is disposed on one side of the placement plate and is adapted to the detection end of the pressure sensor.

[0012] Preferably, a controller is provided above the base, and the controller is electrically connected to the first electric guide rail, the pneumatic finger, the annular electric guide rail, the second electric guide rail and the pressure sensor.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model utilizes a length adjustment mechanism: through the linkage between the first electric guide rail and the bracket, the axial length of the coil can be adjusted, improving adaptability compared to the single size of traditional fixed support frames. The inner diameter adjustment mechanism: pneumatic fingers combined with a screw for fine adjustment can accommodate various coil inner diameters, solving the problem of frequent clamp replacement required by existing gripper assemblies. This utility model also utilizes a pressure feedback system: the clamping mechanism integrates a pressure sensor and an electric guide rail to monitor the winding pressure in real time, avoiding coil loosening or deformation caused by static clamping in the prior art, and is expected to improve the yield rate. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the first screw of this utility model; Figure 4 This is a cross-sectional view of the first electric guide rail of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A; Figure 6 This is a cross-sectional view of the bracket of this utility model.

[0014] In the diagram: 1. Base; 2. First electric guide rail; 3. Bracket; 4. Through hole; 5. Mounting plate; 6. Pneumatic finger; 7. First screw; 8. Support leg; 9. Mounting ring; 10. Circular electric guide rail; 11. First mounting block; 12. Mounting rod; 13. Second nut; 14. Support block; 15. Second electric guide rail; 16. Placement plate; 17. Pressure sensor; 18. Pressure rod; 19. Second mounting block. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 This utility model provides a technical solution: a winding frame for winding transformer coils, including a base 1. A length adjustment mechanism for accommodating transformer coils of different lengths is provided above the base 1. The length adjustment mechanism includes a first electric guide rail 2, which is positioned above the base 1. A bracket 3 is provided on the top of the first electric guide rail 2, and a through hole 4 is provided on one side of the bracket 3. A controller drives the first electric guide rail 2 to move the bracket 3, so that the position of the through hole 4 adapts to the axial length of the transformer coil.

[0017] One side of the length adjustment mechanism is equipped with an inner diameter adjustment mechanism for fixing transformer coils of different inner diameters. The inner diameter adjustment mechanism includes a mounting plate 5, which is located on one side of the bracket 3. A pneumatic finger 6 is located on the side of the mounting plate 5 away from the bracket 3. The output end of the pneumatic finger 6 is adapted to the through hole 4. A first screw 7 is located on one side of the mounting plate 5, which extends through the mounting plate 5 into the interior of the bracket 3. When the pneumatic finger 6 is opened, its grippers fix the inner wall of the transformer coil.

[0018] A winding mechanism for winding transformer coils is provided above the base 1. The winding mechanism includes a support leg 8, which is located on the top of the base 1. A mounting ring 9 is located above the support leg 8. An annular electric guide rail 10 is located on one side of the mounting ring 9. A wire feeding mechanism is provided at the output end of the annular electric guide rail 10. The annular electric guide rail 10 drives the wire feeding mechanism at its output end to rotate around the transformer coil.

[0019] The wire feeding mechanism includes a first mounting block 11, which is disposed on the surface of the output end of the annular electric guide rail 10. A mounting rod 12 is disposed on one side of the first mounting block 11, and a second mounting block 19 is disposed at the end of the mounting rod 12 away from the first mounting block 11. A second nut 13 is disposed on one side of the second mounting block 19, extending through the second mounting block 19 and into the interior of the mounting rod 12. The second nut 13 is used to fix the second mounting block 19 to the mounting rod 12, and the spool wound with transformer wire can be easily replaced by loosening the second nut 13.

[0020] One side of the mechanism is equipped with a clamping mechanism to press the transformer wire during winding. The clamping mechanism includes a support block 14, which is positioned above the annular electric guide rail 10. A second electric guide rail 15 is located on one side of the support block 14. A placement plate 16 is located at the output end of the second electric guide rail 15. A pressure sensor 17 is installed inside the placement plate 16. A pressure rod 18 is located on one side of the placement plate 16 and is adapted to the detection end of the pressure sensor 17. The pressure sensor 17 detects the pressure on the pressure rod 18 in real time during winding and feeds the signal back to the controller. The controller adjusts the running speed of the annular electric guide rail 10 according to the pressure magnitude. For example, when the pressure is too high, the speed of the annular electric guide rail 10 is reduced to maintain a constant winding tension.

[0021] A controller is installed on the top of the base 1. The controller is electrically connected to the first electric guide rail 2, the pneumatic finger 6, the annular electric guide rail 10, the second electric guide rail 15 and the pressure sensor 17.

[0022] In summary, its workflow is described as follows: The transformer coil bobbin to be wound is placed between the grippers of the pneumatic fingers 6. The controller activates the first electric guide rail 2, adjusting the position of the bracket 3 according to the bobbin length. Subsequently, the grippers of the pneumatic fingers 6 open, tightening the inner wall of the bobbin for fixation. The second nut 13 is loosened, and the spool with the transformer wire wound is placed on the mounting rod 12. The second mounting block 19 is then secured with the second nut 13 to lock the spool. The end of the transformer wire is passed through the guide groove of the pressure rod 18 and fixed to the bobbin. The controller activates the annular electric guide rail 10, driving the wire feeding mechanism to rotate around the bobbin for winding. Simultaneously, the first electric guide rail 2 moves longitudinally at a uniform speed, ensuring the transformer wire is evenly wound around the bobbin. During this process, the pressure sensor 17 monitors the winding tension in real time, and the controller performs closed-loop control to ensure winding quality.

[0023] 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 winding frame for winding transformer coils, comprising a base (1), characterized in that: The base (1) is provided with a length adjustment mechanism for adapting to transformer coils of different lengths. On one side of the length adjustment mechanism is an inner diameter adjustment mechanism for fixing transformer coils of different inner diameters. The base (1) is provided with a winding mechanism for winding the transformer coil. On one side of the winding mechanism is a pressing mechanism for pressing the transformer wire during the winding process.

2. The winding frame for winding transformer coils according to claim 1, characterized in that: The length adjustment mechanism includes a first electric guide rail (2), which is located above the base (1). A bracket (3) is provided on the top of the first electric guide rail (2), and a through hole (4) is provided on one side of the bracket (3) and passes through the bracket (3).

3. A winding frame for winding transformer coils according to claim 2, characterized in that: The inner diameter adjustment mechanism includes a mounting plate (5), which is disposed on one side of the bracket (3). A pneumatic finger (6) is disposed on the side of the mounting plate (5) away from the bracket (3). The output end of the pneumatic finger (6) is adapted to the through hole (4). A first screw (7) is disposed on one side of the mounting plate (5). The first screw (7) extends through the mounting plate (5) into the interior of the bracket (3).

4. A winding frame for winding transformer coils according to claim 3, characterized in that: The winding mechanism includes a support leg (8), which is located on the top of the base (1). A mounting ring (9) is located above the support leg (8). A ring-shaped electric guide rail (10) is located on one side of the mounting ring (9). A wire feeding mechanism is located at the output end of the ring-shaped electric guide rail (10).

5. A winding frame for winding transformer coils according to claim 4, characterized in that: The wire feeding mechanism includes a first mounting block (11), which is disposed on the surface of the output end of the annular electric guide rail (10). A mounting rod (12) is disposed on one side of the first mounting block (11). A second mounting block (19) is disposed at the end of the mounting rod (12) away from the first mounting block (11). A second nut (13) is disposed on one side of the second mounting block (19). The second nut (13) extends through the second mounting block (19) into the interior of the mounting rod (12).

6. A winding frame for winding transformer coils according to claim 5, characterized in that: The clamping mechanism includes a support block (14), which is positioned above the annular electric guide rail (10). A second electric guide rail (15) is provided on one side of the support block (14). A placement plate (16) is provided at the output end of the second electric guide rail (15). A pressure sensor (17) is provided inside the placement plate (16). A pressure rod (18) is provided on one side of the placement plate (16) and is adapted to the detection end of the pressure sensor (17).

7. A winding frame for winding transformer coils according to claim 6, characterized in that: A controller is provided above the base (1), and the controller is electrically connected to the first electric guide rail (2), the pneumatic finger (6), the annular electric guide rail (10), the second electric guide rail (15) and the pressure sensor (17).

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