Manual proofing device for armature assembly

Abstract

The utility model relates to the technical field of coil bending, in particular to a manual proofing device for an armature assembly. According to the technical scheme, an inner mold is arranged on a base, and an outer mold is installed on the base in a limited mode through the inner mold; pressing blocks are installed on the base and located on the periphery of the outer mold through first limiting holes, a second limiting hole and a second fixing hole are formed in the top end of the outer mold, a positioning block is installed on the outer mold through the second limiting hole, and a protection fork is installed on the positioning block through a first fixing hole; and a tire mold is placed on the top end of the inner mold and located on the inner side of the protection fork. According to the utility model, through ingenious cooperation of the components, the outer die can rotate on the pedestal in a limited manner, the pressing block, the positioning block and the protection fork can accurately position an armature coil, and the tire die supports the coil from the inner side, thereby effectively preventing deformation of the coil. In the manual proofing process, operation is easy and convenient, twisting and head turning machining of an armature coil can be efficiently completed, and the machining quality and precision of an armature assembly are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of coil bending technology, specifically to a manual prototyping device for armature assemblies. Background Technology

[0002] Wireless charging technology is increasingly widely used in modern electronic products. Wireless charging coils require high inductance and low resistance. Furthermore, due to the different shapes and designs of various electronic products, wireless charging coils also need to be able to adapt to various complex 3D shapes. Traditional copper coil processing methods often rely on complex mechanical devices and multi-step processes, which are not only inefficient but also difficult to guarantee high precision and consistency. Therefore, exploring an efficient and precise copper coil bending technology has significant theoretical and practical value.

[0003] A search revealed that patent application CN202411563976.X discloses a coil bending and forming equipment and a coil bending and forming method, which includes a main support, a first pressing system, a heating system, and a second pressing system. While this device improves coil bending efficiency and accuracy to some extent by employing multiple systems working in tandem, it suffers from a complex structure and high cost. The inclusion of multiple pressing and heating systems increases the difficulty of assembly, debugging, and maintenance, requiring specialized technicians for operation and upkeep, which is not conducive to widespread use in cost-sensitive production scenarios with limited technical capabilities. Furthermore, the complex structure means more components, increasing the potential for equipment failure. If a component malfunctions, the time and cost of repair are relatively high, impacting overall production progress. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a manual prototyping device for armature assemblies, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A manual prototyping device for an armature assembly includes a base, an inner mold on the base, and an outer mold mounted on the base by means of the inner mold;

[0007] Pressure blocks are installed on the base around the outer mold through the first limiting hole. The top of the outer mold has a second limiting hole and a second fixing hole. A positioning block is installed on the outer mold through the second limiting hole. A protective fork is installed on the positioning block through the first fixing hole. A tire membrane is placed on the top of the inner mold inside the protective fork.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, a limiting groove is provided on the outer mold, and the outer mold is engaged with the pressure block through the limiting groove, so that the outer mold can rotate at the upper limit on the base.

[0010] The beneficial effects of adopting the above-mentioned further solutions are:

[0011] Under the mutual locking action of the limiting groove and the pressure block, the rotation of the outer mold is strictly constrained within a predetermined trajectory. This precise limiting mechanism effectively eliminates instability such as wobbling and drifting during the rotation of the outer mold. Whether repeatedly performing rotation operations at the same angle or flexibly adjusting the angle of the outer mold between different processes, the outer mold can accurately reach the predetermined position each time, laying a solid foundation for the high-precision requirements of armature coil machining. This not only greatly improves the machining accuracy of the product and reduces product quality defects caused by deviations in the rotation of the outer mold, but also enhances the repeatability and reliability of the entire machining process, contributing to the realization of large-scale, standardized production.

[0012] Furthermore, the first limiting hole and the second fixing hole respectively limit the two ends of the armature coil cable, and the two ends of the armature coil cable are respectively inserted into the first limiting hole and the second fixing hole.

[0013] The beneficial effects of adopting the above-mentioned further solutions are:

[0014] Throughout the entire armature coil manufacturing process, the first limiting hole and the second fixing hole precisely anchor the positions of both ends of the coil cable. During subsequent critical processing steps such as coil twisting and shaping, the cable ends are firmly fixed and will not shift due to external forces. This precise positioning ensures the consistency and accuracy of the coil's position in each processing stage, playing a crucial role in improving the overall quality of the armature assembly. In mass production, the cable ends of each armature coil can be standardized and positioned using these two limiting holes, thereby ensuring high stability and uniformity in electrical and mechanical performance across different batches of products.

[0015] Furthermore, the protective fork is mounted on the outer mold via bolts, a first fixing hole, and a second limiting hole, and the protective fork is distributed intersecting the second fixing hole on the outer mold via the second limiting hole.

[0016] The beneficial effects of adopting the above-mentioned further solutions are:

[0017] The protective fork is securely mounted on the outer mold through the combined action of bolts and multiple fixing holes. Its unique layout, intersecting with the second fixing hole, provides comprehensive protection for the armature coil. On one hand, in the complex environment of the machining site, the protective fork effectively prevents accidental collisions or scratches from external objects, preventing physical damage to the coil. On the other hand, during machining, the protective fork also assists in positioning the coil, restricting its movement within the mold and ensuring that the coil is twisted and turned along a preset path. This effectively avoids machining defects caused by coil position changes, significantly improving the product yield.

[0018] Furthermore, the fetal membrane supports the armature coil inserted into the first limiting hole and the second fixing hole from the inside.

[0019] The beneficial effects of adopting the above-mentioned further solutions are:

[0020] When the armature coil undergoes torsion or other stress-bearing processing operations, the diaphragm provides strong support to the coil's insertion point from the inside. During torsion, the coil is subjected to significant external forces; without effective support, excessive localized stress can easily lead to deformation. The presence of the diaphragm evenly distributes these external forces, ensuring the coil maintains its original shape and structural stability during torsion, effectively preventing dimensional deviations and performance degradation caused by deformation. This is crucial for ensuring processing quality, improving product yield, and meeting high-precision design requirements, guaranteeing that the final armature coil fully complies with quality standards.

[0021] Furthermore, the outer mold is provided with torsion arms on both sides, and the outer mold is driven to rotate by holding the torsion arms.

[0022] The beneficial effects of adopting the above-mentioned further solutions are:

[0023] The torsion arms, positioned on both sides of the outer mold, provide operators with extremely convenient and user-friendly force application points. Operators drive the outer mold to rotate by hand-holding the torsion arms; the operation is simple and intuitive, requiring no complex machinery or specialized operating skills. In actual processing, operators can flexibly control the rotation angle and speed according to processing needs, perceive changes in resistance during rotation in real time, and make timely adjustments to ensure smooth processing and significantly improve efficiency. This manual drive method not only lowers the operational threshold but also enhances the interactivity and controllability between the operator and the processing equipment, greatly facilitating manual prototyping.

[0024] This utility model provides a manual prototyping device for armature assemblies. It has the following beneficial effects:

[0025] This manual prototyping device consists of main components such as a base, inner mold, outer mold, torsion arm, pressure block, positioning block, protective fork, and die. These components have relatively simple shapes and functions, without complex structures, making the entire device easy to understand and master. For example, the base serves as a basic support component, providing a stable mounting platform; the inner and outer molds work together to position and shape the armature coil; their structural design is simple and clear, facilitating assembly and disassembly. From installation to specific processing operations, the steps are clear and easy to execute. First, the base is fixed to a reliable mounting surface such as a vise, then the inner mold, outer mold, pressure block, and torsion arm are installed sequentially, completing the initial setup of the device. During processing, key operations such as aligning the inner and outer mold holes and rotating to the required design angle are achieved by rotating the torsion arm. The entire process conforms to manual operation habits, allowing operators to quickly learn and master it. Taking adjusting the angle by rotating the torsion arm as an example, this operation is intuitive and easy to control, requiring no complex mechanical equipment or professional skills.

[0026] The outer mold is equipped with torsion arms on both sides, which are used to drive the outer mold to rotate. Limiting grooves on the outer mold engage with pressure blocks, allowing the outer mold to rotate within a limited position on the base. This design ensures the stability and accuracy of the outer mold during rotation, avoiding processing errors caused by mold wobbling or rotational deviation. For example, when repeatedly rotating the outer mold to specific angles for armature coil processing, the cooperation of the limiting grooves and pressure blocks ensures that the outer mold rotates to the same precise position each time, thus providing a foundation for accurate armature coil processing. The first limiting hole on the base and the second fixing hole on the outer mold respectively limit the two ends of the armature coil cable. During processing, the two ends of the armature coil cable are inserted into the corresponding limiting holes, accurately determining the coil's position and preventing displacement during twisting and other processing operations. This precise positioning method helps ensure the consistency and accuracy of the armature coil in each processing stage, thereby improving the overall quality of the armature assembly. For example, when machining multiple armature coils, both ends of the cable of each coil can be fixed in the same position through limiting holes, resulting in better consistency in the electrical and mechanical properties of the machined armature assembly. A positioning block is installed on the outer mold through a second limiting hole, and a protective fork is installed on the positioning block. The protective fork is also installed on the outer mold through bolts, a first fixing hole, and a second limiting hole, and is distributed intersecting with the second fixing hole. The positioning block and protective fork not only protect the armature coil but also further assist in positioning. During machining, they can limit the position of the coil within the mold, preventing the coil from shifting or twisting during torsion, thus ensuring machining accuracy. For example, when torsion the armature coil, the positioning block and protective fork can ensure that the coil is torsion along a predetermined path and in a predetermined manner, avoiding machining defects caused by changes in coil position.

[0027] This device adjusts the angle of the outer mold by rotating a torsion arm, allowing it to rotate to different angles according to design requirements. This feature makes it suitable for processing armature coils of various specifications and requirements. Different armature assemblies may require different angles of torsion, and this device can flexibly meet these needs. For example, for armature coils requiring small-angle torsion, the operator can precisely rotate the torsion arm to adjust the outer mold to the corresponding small-angle position for processing; similarly, for armature coils requiring large-angle torsion, the required angle can be adjusted by rotating the torsion arm without changing the mold or making complex equipment modifications. This device can not only be used for torsion processing of armature coils, but also plays a role in subsequent torsion head processing. After the armature coil is torsion-shaped, the torsion-shaped coil is placed into the mold, and by installing positioning blocks and protective forks, the torsion arm is rotated again for torsion head processing. This applicability to different processing stages improves the device's efficiency and versatility, reducing the cost for companies to purchase multiple pieces of equipment for different processing steps.

[0028] The protective fork is mounted on the outer mold and intersects with the second fixing hole, effectively protecting the coil during armature coil machining. When the torsion arm is rotated to twist the armature coil, the protective fork prevents accidental contact with the coil by external objects, avoiding damage such as scratches and collisions. Simultaneously, during the twisting process, the protective fork also fixes and protects the coil, preventing damage due to uneven force. For example, in actual machining environments, there may be debris or operator error; the protective fork blocks these potential hazards, ensuring the integrity of the armature coil during machining.

[0029] The diaphragm, located at the top of the inner mold inside the protective fork, supports the armature coil as it is inserted into the first limiting hole and the second fixing hole from the inside. During processing operations such as twisting the armature coil, the coil is subjected to external forces, which can easily deform without effective support. The diaphragm provides stable support, disperses external forces, and prevents deformation due to stress. For example, when twisting a full coil, the diaphragm ensures the coil maintains its original shape during twisting, preventing twisting and deformation due to excessive localized stress, thus ensuring processing quality and improving product yield. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] In the attached diagram:

[0032] Figure 1This is a schematic diagram of the main appearance of this utility model;

[0033] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0034] Figure 3 This is a schematic diagram of the base of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Pressure block; 2. Torsion arm; 3. Positioning block; 301. First fixing hole; 4. Protective fork; 5. Membrane; 6. Outer mold; 601. Second limiting hole; 602. Second fixing hole; 603. Limiting groove; 7. Base; 701. First limiting hole; 702. Inner mold. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1 to 3 As shown, the embodiments provided by this utility model are as follows:

[0039] Example 1

[0040] A manual prototyping device for armature assemblies includes a base 7, an inner mold 702 mounted on the base 7, and an outer mold 6 mounted on the base 7 and limited by the inner mold 702. Torque arms 2 are located on both sides of the outer mold 6. The outer mold 6 is driven to rotate by holding the torque arms 2. The torque arms 2 on both sides of the outer mold 6 provide the operator with extremely convenient and user-friendly force application points. The operator drives the outer mold 6 to rotate by holding the torque arms 2; the operation process is simple and intuitive, requiring no complex mechanical equipment or specialized operating skills. In actual processing, the operator can flexibly control the rotation angle and speed according to processing requirements, perceive changes in resistance during rotation in real time, and make timely adjustments to ensure smooth processing and greatly improve processing efficiency. This manual drive method not only lowers the operational threshold but also enhances the interactivity and controllability between operators and processing equipment, greatly facilitating manual prototyping. A limiting groove 603 is provided on the outer mold 6, which engages with the pressure block 1, allowing the outer mold 6 to rotate within the upper limit on the base 7. Under the engaging action of the limiting groove 603 and the pressure block 1, the rotation of the outer mold 6 is strictly constrained within a predetermined trajectory. This precise limiting mechanism effectively eliminates instability such as wobbling and drifting during the rotation of the outer mold 6. Whether repeatedly performing rotation at the same angle or flexibly adjusting the angle of the outer mold 6 between different processes, the outer mold 6 can accurately reach the predetermined position each time, laying a solid foundation for the high-precision requirements of armature coil processing. This not only greatly improves the processing accuracy of the product and reduces product quality defects caused by the rotation deviation of the outer mold 6, but also enhances the repeatability and reliability of the entire processing process, contributing to large-scale, standardized production.

[0041] Example 2

[0042] To ensure that the cable ends are firmly fixed and do not shift due to external forces during subsequent critical processing steps such as twisting and shaping of the coil, for example, such as Figures 1 to 3As shown, this utility model also includes: a pressure block 1 installed on the base 7 around the outer mold 6 through a first limiting hole 701; a second limiting hole 601 and a second fixing hole 602 are provided at the top of the outer mold 6. The first limiting hole 701 and the second fixing hole 602 respectively limit the two ends of the armature coil cable. The two ends of the armature coil cable are respectively inserted into the first limiting hole 701 and the second fixing hole 602. Throughout the entire processing of the armature coil, the first limiting hole 701 and the second fixing hole 602 can accurately anchor the positions of the two ends of the coil cable. During subsequent key processing steps such as twisting and forming of the coil, the two ends of the cable are firmly fixed and will not be displaced by external forces. This precise positioning ensures the consistency and accuracy of the coil's position in each processing stage, playing a key role in improving the overall quality of the armature assembly. During mass production, the two ends of the cable of each armature coil can be standardized and positioned using these two limiting holes, thereby ensuring high stability and uniformity in electrical and mechanical performance across different batches of products. A positioning block 3 is installed on the outer mold 6 via the second limiting hole 601. A protective fork 4 is installed on the positioning block 3 via the first fixing hole 301. The protective fork 4 is mounted on the outer mold 6 using bolts, the first fixing hole 301, and the second limiting hole 601. The protective fork 4 is arranged crosswise with the second fixing hole 602 on the outer mold 6 via the second limiting hole 601. The protective fork 4 is securely mounted on the outer mold 6 by the combined action of the bolts and multiple fixing holes. This unique crosswise arrangement with the second fixing hole 602 provides comprehensive protection for the armature coil. On the one hand, in the complex environment of the processing site, the protective fork 4 can effectively prevent external objects from accidentally colliding with or scratching the coil, preventing the coil from suffering physical damage. On the other hand, during the processing, the protective fork 4 can also play a role in assisting the positioning of the coil, restricting the movement of the coil within the mold, ensuring that the coil is twisted and turned according to the preset path, effectively avoiding processing defects caused by changes in the coil position, and significantly improving the product yield. The top of the inner mold 702 is located inside the protective fork 4 and a mold 5 is placed there. The mold 5 supports the armature coil insertion at the first limiting hole 701 and the second fixing hole 602 from the inside. When the armature coil is subjected to twisting or other stress processing operations, the mold 5 provides strong support to the coil insertion part from the inside. During the twisting process, the coil will bear a large external force. If there is a lack of effective support, it is easy for excessive local stress to occur, leading to deformation. The presence of the mold 5 can evenly distribute these external forces, so that the coil always maintains its original shape and structural stability during the twisting process, effectively avoiding dimensional deviations and performance degradation caused by deformation. This is of great significance for ensuring processing quality, improving product qualification rate, and meeting high-precision design requirements, ensuring that the final armature coil fully meets quality standards.

[0043] Working principle:

[0044] Secure the base 7 to a vise or reliable mounting surface, ensuring a stable installation. Next, fix the inner mold 702 at the center of the base 7, then insert the outer mold 6 into the inner mold 702. Install the two pressure blocks 1 on both sides, lock the pressure blocks 1, and press them against the grooves along the edge of the outer mold 6. Finally, install the two torsion arms 2 on both sides of the outer mold 6. The base 7 provides a stable support foundation, ensuring the entire device will not shake or shift during operation, thus guaranteeing subsequent precise machining operations. The inner mold 702 and the outer mold 6 cooperate to form a space for accommodating and positioning the armature coil. The pressure blocks 1, by pressing against the grooves along the edge of the outer mold 6, restrict the horizontal movement of the outer mold 6, ensuring the stability of the outer mold 6 during subsequent rotation. The torsion arms 2, installed on both sides of the outer mold 6, provide the operator with a force point to drive the outer mold 6 to rotate.

[0045] Rotate the torsion arm 2 to align the inner mold 702 with the hole on the outer mold 6, and mark the initial position. Rotating the torsion arm 2 causes the outer mold 6 to rotate around a specific axis, aligning the inner mold 702 with the hole on the outer mold 6. This ensures that when the armature coil is inserted later, the coil can smoothly pass through the hole on the mold and be accurately placed in the predetermined position. Marking the initial position allows for accurate knowledge of the mold's initial state during subsequent processing, facilitating angle adjustments according to design requirements.

[0046] Continue rotating the torsion arm 2 until it reaches the required angle as specified in the design drawing, marking the endpoint. The operator rotates the torsion arm 2 to rotate the outer mold 6 relative to the inner mold 702 to the required torsion angle for the armature coil, according to the design drawing. The outer mold 6, with the cooperation of the limiting groove 603 and the pressure block 1, ensures the accuracy of the rotation angle. Once the specified angle is reached, the endpoint position is marked, providing a reference for subsequent armature coil torsion processing.

[0047] Return the device to its initial position. To facilitate the next step of inserting the bent copper wire into the mold, the mold needs to be restored to its initial state, making the hole position easy for the copper wire to be inserted, and also to ensure that the starting conditions are consistent for each processing operation.

[0048] The bent copper wires are inserted into the mold sequentially, with the die 5 placed in the middle. After being bent into the designed shape, the copper wires are inserted into the mold; the holes in the mold and the predetermined relative positions provide initial positioning for the copper wires. The die 5 is placed there because it supports the insertion points of the copper wires from the inside during subsequent twisting processing, preventing deformation due to stress and ensuring the shape stability of the copper wires during processing.

[0049] Rotate the torsion arm 2 to the final position. The operator rotates the torsion arm 2 again, causing the outer mold 6 to rotate, which in turn rotates the inserted copper wire. Since the rotation angle of the outer mold 6 has been adjusted and marked according to the design requirements, the copper wire can be twisted to the required angle, completing the twisting process.

[0050] Once the twisting of the entire coil is complete, remove the coil (twist complete). After the twisting process is finished, the armature coil has reached the shape required by the design. Remove it from the mold for subsequent core assembly and other operations.

[0051] The twisted coils are inserted sequentially into the pressed iron core, awaiting the twisting process. Then, the coils to be twisted are placed into the mold. Inserting the twisted coils into the pressed iron core is to assemble them into part of the complete armature assembly. Placing the coils to be twisted back into the mold allows for the next twisting process; the mold provides a stable positioning and force environment for the twisting operation.

[0052] Place the positioning block 3, install the protective fork 4, and lock it in place. The positioning block 3 and the protective fork 4 are installed on the mold. The positioning block 3 can further determine the position of the coil within the mold and prevent the coil from shifting during the twisting process. The protective fork 4 serves to protect the coil, preventing external factors from damaging the coil during the twisting operation. It can also assist in positioning and ensure the accuracy of the twisting operation.

[0053] Rotate torsion arm 2 until it reaches the end position (twisting complete), then remove the machined armature assembly. Rotate torsion arm 2 to drive outer mold 6 to rotate, which in turn drives the coil inside the mold to perform the twisting operation. Since the end position has been determined beforehand, the twisting angle can be guaranteed to meet the design requirements. After twisting is complete, remove the machined armature assembly, and the entire manual prototyping process is finished.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A manual prototyping device for an armature assembly, comprising a base (7), wherein an inner mold (702) is provided on the base (7), and an outer mold (6) is mounted on the base (7) by means of the inner mold (702), characterized in that: A pressure block (1) is installed on the base (7) around the outer mold (6) through a first limiting hole (701). A second limiting hole (601) and a second fixing hole (602) are provided on the top of the outer mold (6). A positioning block (3) is installed on the outer mold (6) through the second limiting hole (601). A protective fork (4) is installed on the positioning block (3) through the first fixing hole (301). A fetal membrane (5) is placed on the top of the inner mold (702) inside the protective fork (4).

2. The manual prototyping device for armature assembly according to claim 1, characterized in that: The outer mold (6) has a limiting groove (603) and the outer mold (6) is engaged with the pressure block (1) through the limiting groove (603), so that the outer mold (6) can rotate at the limit on the base (7).

3. The manual prototyping device for armature assembly according to claim 1, characterized in that: The first limiting hole (701) and the second fixing hole (602) respectively limit the two ends of the armature coil cable, and the two ends of the armature coil cable are respectively inserted into the first limiting hole (701) and the second fixing hole (602).

4. The manual prototyping device for armature assembly according to claim 1, characterized in that: The protective fork (4) is installed on the outer mold (6) by bolts, a first fixing hole (301) and a second limiting hole (601), and the protective fork (4) is distributed crosswise with the second fixing hole (602) on the outer mold (6) through the second limiting hole (601).

5. The manual prototyping device for armature assembly according to claim 1, characterized in that: The fetal membrane (5) supports the armature coil from the inside at the first limiting hole (701) and the second fixing hole (602).

6. The manual prototyping device for an armature assembly according to claim 1, characterized in that: The outer mold (6) is provided with torsion arms (2) on both sides, and the outer mold (6) is driven to rotate by holding the torsion arms (2).

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