Mover coil winding and shaping die suitable for permanent magnet direct current linear motor
By designing a mold including winding assembly and extrusion assembly for the permanent magnet DC linear motor, the technical problem that it is difficult to ensure the coil size and thickness by manual operation in the winding and shaping process of the rotor coil is realized. Efficient plastic surgery and stent placement requirements.
Patent Information
- Application Number
- CN202420514524.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The rotor coil winding and shaping process of permanent magnet DC linear motors adopts pure manual operation, which is difficult to ensure that the coil size and thickness meet the requirements, resulting in the inability to be placed in the rotor bracket.
A mold including a winding assembly and an extrusion assembly consisting of a mating first template and a second template, and a boss is used to wind the brake coil and complete the initial shaping; the extrusion assembly is passed through a plurality of The push plate extrudes the mover coil inward to achieve secondary shaping and adjusts the preload force of the push plate to ensure the accuracy of the coil shape and thickness.
Through the use of the mold, the rotor coil can have a flat appearance and reasonable size to meet the design requirements, meet the conditions for putting it into the rotor bracket, improve the plastic surgery pass rate, and have good promotion and application value.
Smart Images
Figure CN222464396U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of motor rotor coil winding and shaping, and in particular relates to a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor. Background Art
[0002] A permanent magnet DC linear motor is a DC linear motor that can achieve limited displacement and has only coils but no core or commutator.
[0003] The rotor coil of the permanent magnet DC linear motor needs to be pasted on the rotor bracket and then undergo a potting process, which means that after the rotor coil is placed in the bracket, appropriate space should be left in the coil shape and coil thickness direction to facilitate subsequent potting.
[0004] Since the winding and shaping process of the rotor coil is purely manual, it is difficult to make the size and thickness of the winding coil meet the requirements; and during the winding and shaping process, manual operation is difficult, which can easily cause the winding coil to have a shape that is out of tolerance and cannot be placed in the rotor bracket. Utility Model Content
[0005] In order to overcome the above technical defects, the utility model provides a mold suitable for winding and shaping the rotor coil of a permanent magnet DC linear motor, which can solve the technical problem that the winding and shaping of the existing rotor coil are done manually, resulting in the coil shape being unable to meet the process requirements.
[0006] In order to achieve the above purpose, the utility model adopts the following technical contents:
[0007] A die for winding and shaping a rotor coil of a permanent magnet DC linear motor, comprising a winding assembly and an extrusion assembly;
[0008] The winding assembly comprises a first template and a second template that match each other; a boss for winding the brake sub-coil is arranged at the center of the first template, and the first template is connected to the second template through the boss;
[0009] The extrusion assembly includes a first push plate arranged at the bottom of the winding assembly, a second push plate at the top of the winding assembly, a third push plate on the outer wall of the first template, and a fourth push plate on the outer wall of the second template; wherein the first push plate and the second push plate and the third push plate and the fourth push plate cooperate with each other to form inward extrusion on the movable coil to achieve shaping of the movable coil.
[0010] Furthermore, a first center hole is arranged at the center of the boss, and a second center hole matching with the boss is arranged at the center of the second template; and an end face of the boss is arranged flush with an outer end face of the second template.
[0011] Furthermore, a lead hole is provided at the bottom of the first template and / or the second template.
[0012] Furthermore, a plurality of bolt holes are arranged on the boss, and the connection between the first template and the second template is formed by the cooperation of the bolt holes and the bolts.
[0013] Furthermore, centers of the plurality of bolt holes are located on the same axis.
[0014] Furthermore, the first push plate, the second push plate, the third push plate and the fourth push plate are respectively connected to the winding assembly through screws.
[0015] Furthermore, the screw is a hexagon socket screw.
[0016] Furthermore, the first template, the second template, the first push plate, the second push plate, the third push plate and the fourth push plate are all made of 45 steel.
[0017] Furthermore, the mover coil comprises a coil body; the outer surface of the coil body is covered with an insulating layer; and a lead wire is led out from the bottom of the coil body.
[0018] Furthermore, the mover coil is made of self-adhesive enameled round copper wire.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] The utility model provides a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor. The mold comprises a winding assembly and an extrusion assembly. The winding assembly comprises a first template and a second template that can be molded together. The boss of the first template is used to wind the brake coil and complete the initial shaping of the rotor coil; the extrusion assembly comprises a plurality of push plates located at the upper, lower, left and right sides of the winding assembly, which cooperate with each other to form an inward extrusion of the rotor coil to achieve secondary shaping of the rotor coil. By adjusting the pre-tightening force of the upper, lower, left and right push plates, the size of the winding coil shape and the coil thickness meet the requirements and meet the requirements of being placed in the rotor bracket; the mold structure and principle are simple, easy to operate, and has good promotion and application value.
[0021] Preferably, in the present invention, a lead hole is provided at the bottom of the first template and / or the second template to facilitate the lead wire to be led out from the lead hole and to prevent the lead wire from being damaged during squeezing.
[0022] Preferably, in the present invention, the template and the push plate are both made of No. 45 steel, which ensures the stability and reliability of the mold structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the structure of a mold for winding and shaping a mover coil provided in an embodiment of the utility model;
[0024] Figure 2 A schematic diagram of the structure of a winding assembly of a mold for winding and shaping a rotor coil of a permanent magnet DC linear motor provided by an embodiment of the utility model; wherein (a) is a front view; (b) is a side view;
[0025] Figure 3 A schematic structural diagram of an extrusion assembly of a die for winding and shaping a rotor coil of a permanent magnet DC linear motor provided in an embodiment of the utility model; wherein (a) is a front view; and (b) is a side view.
[0026] Reference numerals:
[0027] Coil body-1; insulation layer-2; lead wire-3;
[0028] Movable coil-4; first template-5; second template-6; boss-5-1;
[0029] The first push plate 7; the second push plate 8; the third push plate 9; the fourth push plate 10; the screw 11. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the following specific embodiments further describe the utility model in detail. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0034] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0036] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0037] The utility model is further described in detail below with reference to the accompanying drawings:
[0038] Example
[0039] As mentioned in the background technology, since the winding and shaping process of the rotor coil is purely manual, it is difficult to make the size of the winding coil and the coil thickness meet the requirements; and during the winding and shaping process, manual operation is difficult, which can easily cause the winding coil shape to be out of tolerance, resulting in the inability to be placed in the rotor bracket.
[0040] In order to solve the above problems, this embodiment provides a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor. With the help of this mold, the winding and shaping of the rotor coil are completed, so that the coil can be placed in the rotor bracket with a flat appearance and reasonable size. After the winding coil is wound, the rotor coil meets the qualified requirements through pre-shaping, mold shaping, soaking, and oven curing.
[0041] like Figure 1 As shown, this embodiment provides a structure of a mover coil 4, where the mover coil 4 adopts a self-adhesive enameled round copper wire, specifically including a coil body 1, an insulating layer 2 coated on the surface of the coil body 1, and a lead wire 3 led out from the coil body 1.
[0042] like Figure 2 and Figure 3 As shown, this embodiment provides a die for winding and shaping the rotor coil of a permanent magnet DC linear motor. The die includes a winding assembly and an extrusion assembly, and specifically includes the following structure:
[0043] like Figure 2 As shown in (a) and (b), the winding assembly includes a first template 5 and a second template 6, a boss 5-1 at the center of the first template 5, the boss 5-1 is used to wind the brake coil 4, and a plurality of bolt holes are provided on the boss 5-1. In this embodiment, the plurality of bolt holes are located on the same axis, which facilitates the positioning and mold closing operations of the first template 5 and the second template 6.
[0044] like Figure 3 As shown in (a) and (b), the extrusion assembly includes a first push plate 7, a second push plate 8, a third push plate 9 and a fourth push plate 10; they are respectively connected to the bottom, top, left and right sides of the winding assembly by screws 11 (hexagon socket screws can be used); by pre-tightening in pairs, inward extrusion is achieved to achieve the shaping of the movable coil 4.
[0045] As a preferred solution of this embodiment, in order to ensure the reliability of the structure, the first template 5 and the second template 6 as well as the first push plate 7, the second push plate 8, the third push plate 9 and the fourth push plate 10 are all made of 45 steel, and the surface is treated with a blueing process; before winding, silicone grease is applied to the contact surface between the enameled round copper wire and the mold and the mold to facilitate the subsequent demolding operation.
[0046] As a preferred solution of this embodiment, a first center hole is set at the center of the boss 5-1, and the first center hole here is cylindrical. A second center hole is set at the center of the second template 6, and the first center hole matches the second center hole; the end face of the boss 5-1 is flush with the outer end face of the second template 6, which can ensure that the structure is more stable and neat.
[0047] In order to facilitate the lead wire 3 to be led out, a lead wire hole is opened at the bottom of the first template 5 and / or the second template 6 to prevent the lead wire 3 from being damaged during squeezing.
[0048] This embodiment provides a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor, and the specific working principle is as follows:
[0049] After the first template 5 and the second template 6 are molded together, the moving coil 4 is wound. The shape of the moving coil 4 is formed by densely winding according to the state of the template after the mold is closed. After the winding is completed according to the requirements of the drawing, the first push plate 7, the second push plate 8, the third push plate 9 and the fourth push plate 10, that is, the upper and lower push plates, the left and right push plates, are used again to extrude the shape of the moving coil 4. When the upper and lower push plates, the left and right push plates are pushed to the limit position (this time the limit position can be knocked by a rubber hammer or the mold shaping surface can be squeezed by an oil press), the shape of the moving coil 4 is initially formed. Therefore, the moving coil uses self-adhesive enameled round copper wire. According to the characteristics of this self-adhesive wire, it is soaked in alcohol and heated in an oven so that the moving coil 4 is formed according to the design requirements of the mold shape; so that the moving coil 4 can be placed in the moving bracket with a flat shape and reasonable size.
[0050] This embodiment provides a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor, which has the following advantages:
[0051] First, after the left and right templates are closed together for close winding, the rotor coil can be initially formed, and then the upper and lower push plates and the left and right push plates are used for extrusion, so that the rotor coil can completely reach the designed shape. Second, according to the characteristics of the enameled wire itself, alcohol soaking and oven heat setting are carried out to achieve the required shape of the coil.
[0052] This embodiment has been applied to a permanent magnet DC linear motor designed by the company, and the stator shaping qualification rate of the motor has been increased to 100%. The winding, shaping mold and process have strong adaptability and promotion.
[0053] In summary, the utility model provides a mold for winding and shaping the rotor coil of a permanent magnet DC linear motor, which has the following advantages compared with the existing shaping measures:
[0054] The mold includes a winding assembly and an extrusion assembly. The winding assembly includes a first template and a second template that can be molded together. The boss of the first template is used to wind the brake coil and complete the initial shaping of the mover coil; the extrusion assembly includes a plurality of push plates located above, below, left and right of the winding assembly, which cooperate with each other to form an inward extrusion of the mover coil to achieve secondary shaping of the mover coil. By adjusting the preload force of the upper, lower, left and right push plates, the outer size of the winding coil and the coil thickness meet the requirements and meet the requirements for being placed in the mover bracket. The mold has a simple structure and principle, is easy to operate, and has good promotion and application value.
[0055] The above embodiment is only one of the implementation methods that can realize the technical solution of the utility model. The scope of protection required by the utility model is not limited only to this embodiment, but also includes within the technical scope disclosed by the utility model, any changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field.
Claims
1. A mold for winding and shaping the rotor coil of a permanent magnet DC linear motor, characterized in that: Includes winding components and extrusion components; The winding assembly comprises a first template (5) and a second template (6) that match each other; a boss (5-1) for winding a brake sub-coil (4) is arranged at the center of the first template (5), and is connected to the second template (6) via the boss (5-1); The extrusion assembly comprises a first push plate (7) arranged at the bottom of the winding assembly, a second push plate (8) at the top of the winding assembly, a third push plate (9) on the outer wall of the first template (5), and a fourth push plate (10) on the outer wall of the second template (6); wherein the first push plate (7) and the second push plate (8) as well as the third push plate (9) and the fourth push plate (10) cooperate with each other to form an inward extrusion on the movable coil (4) to achieve the shaping of the movable coil (4).
2. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: A first center hole is arranged at the center of the boss (5-1), and a second center hole matching the boss (5-1) is arranged at the center of the second template (6); the end surface of the boss (5-1) is arranged flush with the outer end surface of the second template (6).
3. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: A lead hole is provided at the bottom of the first template (5) and / or the second template (6).
4. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: The boss (5-1) is provided with a plurality of bolt holes, and the first template (5) and the second template (6) are connected by the bolt holes and the bolts.
5. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 4, characterized in that: The centers of the plurality of bolt holes are all located on the same axis.
6. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: The first push plate (7), the second push plate (8), the third push plate (9) and the fourth push plate (10) are respectively connected to the winding assembly via screws (11).
7. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 6, characterized in that: The screw (11) is a hexagon socket screw.
8. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: The first template (5), the second template (6), the first push plate (7), the second push plate (8), the third push plate (9) and the fourth push plate (10) are all made of 45 steel.
9. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: The movable coil (4) comprises a coil body (1); the outer surface of the coil body (1) is covered with an insulating layer (2); and a lead wire (3) is led out from the bottom of the coil body (1).
10. The mold for winding and shaping the rotor coil of a permanent magnet DC linear motor according to claim 1, characterized in that: The mover coil (4) is made of self-adhesive enameled round copper wire.