Transformer inner core coil winding jig
By designing a winding fixture for the inner core coil of a small transformer, the precise coaxial positioning and fixing of the skeleton is achieved using the limit structure and the pressure body, the problem of difficult to achieve high-precision coaxial positioning and easy damage to the skeleton structure in the prior art is solved, ensuring the stability of the winding process.
Patent Information
- Application Number
- CN202421822023.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The prior art is difficult to achieve high-precision coaxial positioning and fixing of the inner core coil of the small transformer, and the skeleton structure is easily damaged.
A transformer inner core coil winding fixture is designed, and the integrated fixture body is used to achieve precise coaxial positioning and fixing of the inner core frame through the limiting structure and the pressure body to avoid excessive clamping and torsional force of the skeleton structure.
The high-precision coaxial positioning and fixation of the inner core coil of the small transformer is achieved, which protects the skeleton structure from damage and ensures the stability of the winding process.
Smart Images
Figure CN222867438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer winding jigs, in particular to a transformer inner core coil winding jig. Background Art
[0002] The winding of transformer coils usually involves mounting the skeleton to be wound on a special fixture, which is then driven by a rotary drive device to rotate to complete the winding of the coil. For common cylindrical skeleton structures, internal support and axial limit fixation are often used for positioning and fixation, which can maximize the accuracy and stability of the wound coils, and the skeleton structure is almost impossible to be damaged. However, for the winding of the inner core coils of small transformers, the inner core skeleton structure is small and solid plate-like. There is no suitable fixture available, and the common clamping and fixing structure is used, which makes it difficult to achieve high-precision coaxial positioning, and the skeleton structure is easily damaged. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a transformer inner core coil winding jig, which is convenient for installing and fixing the skeleton structure when winding the inner core coil of a small transformer, ensuring that the skeleton structure is not damaged and the winding process is stable.
[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a transformer inner core coil winding jig, including a jig body, one end of which is provided with a transfer shaft, and the transfer shaft is used to connect a rotation drive device; an end of the jig body away from the transfer shaft is provided with a fixing module, and the fixing module is used to fix the inner core skeleton so that the axis thereof is coaxially arranged with the transfer shaft; the fixing module is provided with a limiting structure and a pressure body, and the pressure body presses the end of the inner core skeleton within the limiting structure.
[0005] Furthermore, the fixture body, the adapter shaft and the fixing module are an integrated structure, and the fixture body is a cylindrical structure.
[0006] Furthermore, the limiting structure includes a radial limiting surface, on which a limiting snap-in is arranged, and the end of the inner core skeleton is a pole needle mounting plate, which is fitted with the radial limiting surface after being inserted into the limiting snap-in; the end face of the winding part of the inner core skeleton is fitted with the end face of the fixture body.
[0007] Furthermore, the pressure-applying body is arranged at one end of the swing plate, the middle part of the swing plate is hinged to the middle part of the fixture body, and the end of the swing plate away from the pressure-applying body is connected to the fixture body through an elastic member.
[0008] Furthermore, the pressure-applying body is provided with an escape opening, and the escape opening allows the pole needle to pass through the pressure-applying body.
[0009] Furthermore, a slot is provided on the end surface of the fixture body, and the end of the winding part is embedded in the slot.
[0010] Beneficial effect: The utility model provides a transformer inner core coil winding jig, which adopts an integrated jig body, and the two axial ends are respectively processed to form a limiting structure and a transfer shaft. The limiting structure limits the coaxial arrangement of the inner core skeleton relative to the transfer shaft, and then the relative position of the inner core skeleton is fixed by adding a pressure body, thereby achieving precise coaxial positioning and fixation. The integrated structure has high strength, which meets the requirements of skeleton structure installation and fixation when winding the inner core coil of a small transformer, ensures that the skeleton structure is not damaged, and ensures the stability of the winding process. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The figure is a schematic diagram of the top structure of an embodiment of the utility model. DETAILED DESCRIPTION
[0012] The utility model is further described below in conjunction with the accompanying drawings.
[0013] As attached Figure 1 The transformer inner core coil winding jig comprises a jig body 1, one end of which is provided with an adapter shaft 2, and the adapter shaft 2 is used to connect a rotating drive device; the end of the jig body 1 away from the adapter shaft 2 is provided with a fixing module 3, and the fixing module 3 is used to fix the inner core skeleton 4 so that the axis thereof is coaxially arranged with the adapter shaft 2; the fixing module 3 is provided with a limiting structure 31 and a pressure body 32, and the pressure body 32 presses the end of the inner core skeleton 4 in the limiting structure 31.
[0014] This solution uses a fixed module to locate and fix one end of the inner core skeleton, so that the central axis of the inner core skeleton is coaxially arranged with the adapter shaft at the other end of the fixture body, and then the adapter shaft is connected to the output spindle of the drive motor, so that the motor drives the inner core skeleton to rotate around its own axis, and the inner core coil is wound in coordination with the uniform axis movement. In order to reduce damage to the skeleton structure and prevent it from being subjected to excessive clamping and torsional forces, only one end is clamped to achieve a fixed effect, and because the structure of the inner core skeleton itself is relatively small, the winding is still stable after clamping at one end.
[0015] The jig body 1 is an integrated structure with the adapter shaft 2 and the fixing module 3, and the jig body 1 is a cylindrical structure. The strength of the jig itself is enhanced, and it can bear greater torsional stress, further ensuring the stability of the winding process.
[0016] The limiting structure 31 includes a radial limiting surface 311, on which a limiting bayonet 312 is arranged. The end of the inner core skeleton 4 is a pole needle mounting plate 41, which fits with the radial limiting surface 311 after being inserted into the limiting bayonet 312; the end surface of the winding part 42 of the inner core skeleton 4 fits with the end surface of the fixture body 1. The pressure body 32 is provided with an avoidance opening 321, and the avoidance opening 321 allows the pole needle to pass through the pressure body 32.
[0017] The entire fixture structure can be processed from a cylindrical metal block. The processing position of the radial limit surface is determined according to the radial distance between the clamping position on the inner core skeleton and its own axis. The limit plane is processed by turning, and then two symmetrical protrusions are left near the clamping end. The limit bayonet is formed between the two protrusions. The end of the inner core skeleton is correspondingly inserted between the two protrusions, and the clamped part is placed against the radial limit surface. The end face of the winding part fits with the end face of the fixture body to complete the positioning and installation. The radial limit surface, the limit bayonet, and the end face of the fixture body just constrain the position of the inner core skeleton in three directions perpendicular to each other in the three-dimensional space, so as to achieve the purpose of precise positioning. Further ensure the stability of the winding process.
[0018] The pressure-applying body 32 is disposed at one end of the swing plate 5 , the middle portion of the swing plate 5 is hinged to the middle portion of the fixture body 1 , and the end of the swing plate 5 away from the pressure-applying body 32 is connected to the fixture body 1 via an elastic member.
[0019] The pressure-applying body and the swing plate can be an integrated structure, which just forms a structure similar to a clamp after being hinged to the fixture body. In the initial state, the pressure-applying body is pressed against the radial limiting surface under the action of the elastic member. By pressing the connection end of the elastic member to compress the elastic member, the pressure-applying body is moved away from the radial limiting surface, so that the end of the inner core skeleton can be correspondingly inserted into the limiting structure, and then the pressing external force is removed, so that the pressure-applying body presses the end of the inner core skeleton in the limiting structure, achieving the effect of clamping and fixing, avoiding the skeleton from moving during the winding process, and ensuring the stability of the winding.
[0020] The end surface of the fixture body 1 is provided with a slot, and the end of the winding part 42 is embedded in the slot. The torsional force of the winding part during the winding process acts on the slot wall surface of the slot, avoiding the phenomenon that the connection between the clamped part of the inner core skeleton and the winding part is subjected to excessive torsional stress and thus twisting off at the connection, thus avoiding damage to the inner core skeleton and further ensuring the stability of the winding process.
[0021] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A transformer core coil winding jig, characterized in that: The invention comprises a jig body (1), one end of which is provided with a transfer shaft (2), and the transfer shaft (2) is used to connect a rotation drive device; the end of the jig body (1) away from the transfer shaft (2) is provided with a fixing module (3), and the fixing module (3) is used to fix an inner core skeleton (4) so that its axis is coaxial with the transfer shaft (2); the fixing module (3) is provided with a limiting structure (31) and a pressure body (32), and the pressure body (32) presses the end of the inner core skeleton (4) in the limiting structure (31).
2. The transformer inner core coil winding jig according to claim 1, characterized in that: The jig body (1), the adapter shaft (2) and the fixing module (3) are an integrated structure, and the jig body (1) is a cylindrical structure.
3. The transformer inner core coil winding jig according to claim 2, characterized in that: The limiting structure (31) comprises a radial limiting surface (311), a limiting snap-in (312) is arranged on the radial limiting surface (311), the end of the inner core skeleton (4) is a pole needle mounting plate (41), and the pole needle mounting plate (41) fits with the radial limiting surface (311) after being snapped into the limiting snap-in (312); the end surface of the winding part (42) of the inner core skeleton (4) fits with the end surface of the fixture body (1).
4. The transformer inner core coil winding jig according to claim 3 is characterized in that: The pressure-applying body (32) is arranged at one end of the swing plate (5), the middle part of the swing plate (5) is hinged to the middle part of the jig body (1), and the end of the swing plate (5) away from the pressure-applying body (32) is connected to the jig body (1) via an elastic member.
5. The transformer inner core coil winding jig according to claim 4, characterized in that: The pressure-applying body (32) is provided with an escape opening (321), and the escape opening (321) allows the pole needle to pass through the pressure-applying body (32).
6. The transformer inner core coil winding jig according to claim 5, characterized in that: The end surface of the jig body (1) is provided with a slot, and the end of the winding part (42) is embedded in the slot.