Electromagnetic water meter excitation coil winding tool
The design of detachable outer plate assembly and inner core assembly solves the problem of difficult demolding during the winding of excitation coil, achieving efficient demolding and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520373202.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-05
AI Technical Summary
In the existing technology, during the winding process of excitation coils, it is difficult to demold the coils, which are prone to deformation and twisting. After demolding, external force is required for correction, which leads to damage to the insulation layer and affects product quality and efficiency.
The design features detachable outer panel and inner core components, which are fastened together with screws. Combined with irregularly shaped blocks and demolding grooves, this design enables efficient demolding of the coil and avoids coil damage.
It improves coil integrity and production efficiency, reduces processing costs, enhances tooling flexibility and adaptability, and improves product quality.
Smart Images
Figure CN223842761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of winding tooling technology, and more specifically, to a winding tooling for an electromagnetic water meter excitation coil. Background Technology
[0002] The excitation coil is a crucial component of the excitation system of an electromagnetic water meter and is the main part that generates the magnetic field. The coil's manufacturing process affects the product's measurement accuracy and anti-interference capability. The quality of the excitation coil is generally assessed by measuring its resistance and inspecting its appearance. While ensuring the coil's resistance and insulation characteristics are maintained, its appearance significantly impacts the stability of the electromagnetic flowmeter's magnetic field.
[0003] The general practice in existing technology for winding excitation coils is as follows: Enamelled wire is wound onto a winding fixture via rotational motion. Once the required number of turns is reached, the coil is demolded from the winding fixture. Existing coil winding devices typically include a rotary drive and a winding fixture. The winding fixture is connected to the rotary drive, which drives the winding fixture to rotate. The winding fixture includes an inner core assembly and an outer plate assembly. The outer plate assembly is detachably and fixedly connected to the drive end of the rotary drive, and the inner core assembly is fixedly mounted on the outer plate assembly. When the winding fixture rotates, it winds the enamelled wire onto the winding block of the inner core assembly to form a coil. During the winding process, the enamelled wire undergoes stretching and bending deformation, generating significant internal stress and making demolding the coil difficult. Furthermore, the demolded coil is prone to deformation and twisting, requiring external force for correction. This correction process can easily damage the coil's insulation layer, leading to loss of insulation performance and product defects.
[0004] In view of this, the present invention provides a winding fixture for the excitation coil of an electromagnetic water meter. Utility Model Content
[0005] To overcome the problems in the prior art, this utility model proposes a winding fixture for the excitation coil of an electromagnetic water meter. Through the detachable outer plate assembly and inner core assembly, the coil wound on the outside of the core can be quickly removed, thus improving work efficiency.
[0006] This utility model provides a winding fixture for the excitation coil of an electromagnetic water meter, including an inner core assembly fixed in an outer plate assembly; the inner core assembly includes four irregularly shaped blocks, each of which is provided with a groove and a through hole.
[0007] The outer side plate assembly includes outer baffles symmetrically arranged on both sides of the inner core assembly. The outer baffles are provided with positioning grooves adapted to fix the inner core assembly, fixing grooves that are aligned with the grooves, and outer through holes that connect to the through holes. A screw is used to pass through the outer through holes of the through holes for threaded fastening.
[0008] As a preferred technical solution of this utility model, the two outer baffles of the outer side panel assembly are exactly the same in shape and size, and the irregular cubes are exactly the same in shape and size, and the irregular cubes are spliced on the inner side of the outer baffles.
[0009] As a preferred technical solution of this utility model, an adjustment gap is provided at the connection of adjacent irregular blocks, and a demolding groove is provided at the connection corner.
[0010] As a preferred embodiment of this utility model, a molded curved edge is provided at the edge of the side wall of the fixed groove, and the molded curved edge is a smooth transition surface.
[0011] As a preferred embodiment of this utility model, the dimensions of the outer baffle in each direction are larger than the dimensions of the inner core assembly in the corresponding direction, and a winding area for winding the coil is formed on the outer periphery of the inner core assembly.
[0012] The technical effects and advantages of this utility model of an electromagnetic water meter excitation coil winding fixture are as follows:
[0013] This invention achieves efficient demolding and fixing of coils through a detachable, modular design, reducing processing costs, improving product quality and production efficiency, while enhancing the flexibility and adaptability of tooling, thus demonstrating significant practicality and economy. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the front and back structures of the outer baffle in the outer side panel assembly of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the four irregularly shaped blocks in the inner core assembly of this utility model.
[0017] Figure 4 This is a schematic diagram of the combination of the inner core component and the outer baffle of this utility model;
[0018] Reference numerals: 1. Outer panel assembly; 1-1. Fixing groove; 1-2. External through hole; 1-3. Positioning groove; 2. Inner core assembly; 2-1. Groove; 2-2. Through hole; 2-3. Demolding groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0020] Example 1
[0021] Please see Figure 1-4 As shown, this embodiment provides a winding fixture for the excitation coil of an electromagnetic water meter, including an inner core assembly 2 fixed in an outer plate assembly 1; the inner core assembly 2 includes four irregular blocks, each irregular block being provided with a groove 2-1 and a through hole 2-2;
[0022] The outer side plate assembly 1 includes outer baffles symmetrically arranged on both sides of the inner core assembly 2. The outer baffles are provided with positioning grooves 1-3 adapted to fix the inner core assembly 2, fixing grooves 1-1 that are aligned with grooves 2-1, and outer through holes 1-2 that connect to through holes 2-2. A screw is used to pass through the outer through holes 1-2 of the through holes 2-2 for threaded fastening.
[0023] Aligning the wire-fixing groove 1-1 with the groove 2-1 can prevent the coil from becoming tangled. Before removing the wound coil, the coil can be tied with tape. The wire-fixing groove 1-1 and its corresponding mating groove 2-1 are used to facilitate the wrapping of tape.
[0024] It should be noted that after the coil is wound, it is tightly attached to the winding fixture, which makes it difficult to remove the coil from the fixture, making demolding difficult and easily damaging the coil insulation layer. By using a detachable inner core assembly and outer outer plate assembly, the outer outer plate assembly can be easily removed after winding, and the coil can be naturally detached by adjusting the irregular block, avoiding the problem of demolding difficulty and improving the integrity and pass rate of the coil.
[0025] Before winding the coil, align the four irregular blocks with the positioning grooves 1-3 of the two outer baffles, and align the through holes on each component; insert the screw into the four through holes, and tighten the nuts to make the four irregular blocks and the two outer baffles tightly connected.
[0026] To further explain, the two outer baffles included in the outer side panel assembly 1 are exactly the same in shape and size, and the irregular cubes are exactly the same in shape and size, and the irregular cubes are spliced on the inner side of the outer baffles.
[0027] It should be noted that the outer plate assembly is larger than the inner core assembly, forming a winding area for winding the coil.
[0028] To further explain, an adjustment gap is provided at the connection between adjacent irregular blocks, and a demolding groove 2-3 is provided at the connection corner.
[0029] It should be noted that after the coil winding is completed, loosen the nut and remove the baffles on both sides. Since there are gaps between the four irregular blocks, the four irregular blocks can move closer to each other, reducing the length of the inner core assembly 2. The coil on the inner core assembly 2 will naturally disengage from the inner core assembly 2, and the coil can be easily removed.
[0030] To further explain, a beveled edge is provided at the edge of the side wall of the wire-fixing groove 1-1. This beveled edge is a smooth transition surface used to reduce wear on the wire end and provide better fixation. Align the end of the enameled copper wire with the opening of the wire-fixing groove 1-1, and gently press the wire end into the groove. The beveled edge guides the wire end smoothly into the groove while reducing friction between the wire end and the side wall of the groove. Gently pull the wire end to confirm its secure fixation. If the wire end is loose, its position can be adjusted appropriately, or a small amount of glue or insulating tape can be used to assist in fixing it.
[0031] After the wire end is secured, you can begin winding the coil. During the winding process, the enameled copper wire will gradually wrap around the winding area of the inner core assembly, while the wire end is firmly fixed in the wire-fixing groove 1-1. After winding, when you need to remove the coil, first loosen the nut, remove the outer plate assembly 1, and then gently remove the coil. Due to the curved edge design of the mold, the wire end will be clearly visible in the wire-fixing groove 1-1, making it easy to quickly locate the wire end.
[0032] like Figure 4 As shown, the outer baffle has dimensions larger than the inner core assembly 2 in each direction, forming a winding area for winding the coil on the outer periphery of the inner core assembly 2. The outer baffle assembly 1 protrudes around its periphery, forming a recessed winding area together with the inner core assembly 2, facilitating coil winding and preventing the coil from slipping off.
[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A winding fixture for the excitation coil of an electromagnetic water meter, characterized in that, It includes an inner core assembly (2) fixed in the outer side panel assembly (1); the inner core assembly (2) includes four irregular blocks, each irregular block being provided with a groove (2-1) and a through hole (2-2); The outer side plate assembly (1) includes outer baffles symmetrically arranged on both sides of the inner core assembly (2). The outer baffles are provided with positioning grooves (1-3) adapted to fix the inner core assembly (2), fixing grooves (1-1) aligned with the grooves (2-1), and outer through holes (1-2) connecting through holes (2-2). A screw is used to pass through the outer through holes (1-2) of the through holes (2-2) for threaded fastening.
2. The electromagnetic water meter excitation coil winding fixture according to claim 1, characterized in that, The outer side panel assembly (1) includes two outer baffles with identical shapes and sizes, and the irregular cubes have identical shapes and sizes. The irregular cubes are spliced onto the inner side of the outer baffles.
3. The electromagnetic water meter excitation coil winding fixture according to claim 1, characterized in that, An adjustment gap is provided at the connection between adjacent irregular blocks, and a demolding groove (2-3) is provided at the connection corner.
4. The electromagnetic water meter excitation coil winding fixture according to claim 1, characterized in that, The fixed groove (1-1) has a molded curved edge at the side wall edge, and the molded curved edge is a smooth transition surface.
5. The electromagnetic water meter excitation coil winding fixture according to claim 1, characterized in that, The outer baffle has dimensions in each direction that are larger than the inner core assembly (2) in the corresponding direction, forming a winding area for winding the coil on the outer periphery of the inner core assembly (2).