Forming device and forming system for forming coil of uniform electromagnetic field

Abstract

The utility model discloses a forming device and a forming system for forming a coil of a uniform electromagnetic field. The forming device for forming the coil of the uniform electromagnetic field comprises a first die body, a second die body and a plurality of die cores, the plurality of die cores are movably connected to the first die body and distributed on a circumference, the first die body is connected with the second die body, the die cores are clamped between the first die body and the second die body, and the first die body is connected with the second die body. The peripheral side part of the mold core is exposed between the first mold body and the second mold body and is provided with a winding part for winding a wire, the second mold body is provided with a supporting body, and the supporting body is matched and propped against the mold core to push the mold core to radially move along the circumference so as to adjust the diameter of the winding part. The multiple mold cores are movably arranged on the first mold body, the supporting bodies are arranged on the second mold body, when the first mold body is connected with the second mold body, the supporting bodies abut against the mold cores in a matched mode, the different diameter sizes of the winding part are adjusted, the requirement for winding coils with different diameters is met, and demolding is convenient.

Description

Technical Field

[0001] The utility model relates to a coil forming device and a forming system for forming a uniform electromagnetic field, belonging to the technical field of coil manufacturing equipment. Background Art

[0002] The coil used to form a uniform electromagnetic field is a key component in the etching equipment, and its production process requirements are extremely high: the coil is a frameless coil, wound into shape without a support frame; it has a large size with an inner diameter between 200mm and 500mm and a wide variety; the wires and coils are arranged closely and evenly.

[0003] The existing coils formed by winding enameled wire are usually used in energy storage, filtering, motors, transformers and transformers. The product diameter is relatively small, and the technical requirements for the tightness of the winding wire arrangement and the uniformity of the wire stretching are not as strict as the technical requirements for coils used as uniform magnetic field generators on semiconductor etching equipment. In addition, the existing winding machines generally wind the wire on the shaft and then rotate the shaft to wind the wire into a coil. However, during the winding process, the rotation of the winding machine will cause the wire to be tightly wound on the shaft, which is not easy to demold. If external force is used for forced demolding, the coil is easily deformed, which affects the tightness and uniformity of the coil and reduces the yield of coil preparation. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a forming device and a forming system for a coil for forming a uniform electromagnetic field.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model includes:

[0006] The utility model provides a molding device for a coil for forming a uniform electromagnetic field, comprising a first mold body, a second mold body and a plurality of mold cores, wherein the plurality of mold cores are movably connected to the first mold body and are distributed on a circumference, the first mold body and the second mold body are connected, the mold core is clamped between the first mold body and the second mold body, the outer peripheral side portion of the mold core is exposed between the first mold body and the second mold body, and the outer peripheral side portion of the mold core is provided with a winding portion for winding a wire, and the second mold body is also provided with a support body, the support body cooperates and abuts against the mold core to push the mold core to move radially along the circumference, thereby adjusting the diameter of the winding portion.

[0007] Furthermore, the mold core is provided with a first wall structure and a second wall structure in sequence along the radial direction of the circumference, the first wall structure is provided with a first side surface, the second wall structure is provided with a second side surface, and the first side surfaces of the plurality of first wall structures enclose the activity space. When the first mold body and the second mold body are connected, the support body is movably accommodated in the activity space, and the outer side surface of the support body abuts against the first side surface to drive the mold core to move, and the second side surfaces of the plurality of second wall structures enclose the winding portion.

[0008] Furthermore, a weight-reducing groove is provided between the first wall structure and the second wall structure.

[0009] Furthermore, the first wall structure and the second wall structure are both arc-shaped structures.

[0010] Furthermore, the support body is an axial structure, the outer side surface of the support body is gradually inclined inward from the second mold body along the axial direction of the support body, the first side surface of the first wall structure is gradually inclined outward from the first mold body along the axial direction of the circumference, and the inclination angle of the outer side surface of the support body is consistent with the inclination angle of the first side surface.

[0011] Furthermore, a plurality of weight-reducing hollow holes are provided inside the support body.

[0012] Furthermore, the support body is detachably connected to the second mold body.

[0013] Furthermore, the forming device for forming a coil of a uniform electromagnetic field comprises at least two supporting bodies, and the two supporting bodies have different outer dimensions.

[0014] Furthermore, one end of the first wall structure and one end of the second wall structure are connected to form a sliding portion, and the sliding portion is movably connected to the first mold body. The sliding portion is provided with a guide column, and a guide groove is provided at a corresponding position of the first mold body, and the guide column is movably arranged in the guide groove.

[0015] Furthermore, the guide column includes a connected stud and a nut, the end of the stud away from the nut is provided with a threaded structure, the stud passes through the guide slot and is connected to the sliding part, and the diameter of the nut is greater than the width of the guide slot.

[0016] Furthermore, the first mold body is provided with a plurality of first weight-reducing through holes, and a slideway is formed between two adjacent first weight-reducing through holes, and the mold core moves along the slideway.

[0017] Furthermore, the winding portion is provided with a plurality of wiring grooves along the axial direction of the circumference, and the plurality of wiring grooves are evenly spaced.

[0018] Furthermore, the depth of the wiring groove is one third or one quarter of the diameter of the wire.

[0019] Furthermore, a side avoidance groove is provided on the first mold body and / or the second mold body near the mold core, the side avoidance groove is communicated with the winding part to allow the wire to pass through, and the side avoidance groove extends to the edge of the side.

[0020] Furthermore, it also includes: a first limiting member, the first limiting member is connected to the first mold body, the first limiting member is provided with a first space, and the mold core is movably arranged in the first space.

[0021] Furthermore, the first limiting member includes a plurality of first limiting blocks, and the plurality of first limiting blocks are connected to the first mold body at even intervals in a circle, and the plurality of first limiting blocks enclose the first space.

[0022] Furthermore, it also includes: a second limiter, the second limiter is connected to the second mold body, the second limiter is provided with a second space, and when the first mold body is connected to the second mold body, the mold core is movably arranged in the second space.

[0023] Furthermore, the second limiting member includes a plurality of second limiting blocks, and the plurality of second limiting blocks are connected to the second mold body at even intervals in a circumference, and the plurality of second limiting blocks enclose the second space.

[0024] The utility model also provides a forming system for a coil for forming a uniform electromagnetic field, which includes a driving mechanism and the above-mentioned forming device for a coil for forming a uniform electromagnetic field, the driving mechanism is provided with a driving member and a rotating shaft, the first mold body is provided with a first through hole, the second mold body is provided with a second through hole, the rotating shaft passes through the first through hole and the second through hole and is fixedly connected to the first mold body and the second mold body, the driving member is fixedly connected to the rotating shaft, and drives the rotating shaft to rotate around its own axis, thereby driving the first mold body, the mold core and the second mold body to rotate.

[0025] Furthermore, it also includes: a locking member, which is cooperatively connected with the rotating shaft to lock and fix the rotating shaft on the first mold body and the second mold body.

[0026] Furthermore, the locking piece is a nut structure with a hole on the side.

[0027] Compared with the prior art, the advantages of the utility model include:

[0028] The utility model has a plurality of mold cores movably arranged on a first mold body, and a support body is arranged on a second mold body. When the first mold body and the second mold body are connected, the support body and the mold core are matched and abutted, and the mold core is pushed to different positions by the support body to adjust the different diameter sizes of the winding part to meet the needs of winding coils of different diameters. On the other hand, after the winding work is completed, the first mold body and the second mold body are separated, the support body is separated from the mold core, and the mold core is moved in the radial reverse direction, so that the diameter of the winding part is reduced, thereby facilitating demoulding and avoiding the situation that the coil is tightly wound on the winding part and is difficult to remove after the winding is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a molding device from one perspective in a typical embodiment of the utility model;

[0031] Figure 2 yes Figure 1 A schematic structural diagram of the molding device from another perspective in the illustrated embodiment;

[0032] Figure 3 It is a structural schematic diagram of a mold core in a typical embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of a typical embodiment of the utility model in which the mold core is in a winding state;

[0034] Figure 5 yes Figure 4 A schematic structural diagram of the mold core in the demoulding state in the embodiment shown;

[0035] Figure 6 It is a schematic structural diagram of the connection between the second mold body and the support body in a typical embodiment of the utility model;

[0036] Figure 7 It is a schematic diagram of the exploded structure of the forming device in a typical embodiment of the utility model;

[0037] Figure 8 It is a schematic diagram of the cross-sectional structure of the forming device in a typical embodiment of the utility model.

[0038] Description of reference numerals:

[0039] 100, first mold body; 110, guide groove; 120, first weight-reducing through hole; 130, slideway; 140, avoidance groove; 150, first limit piece; 151, first space; 152, first limit block; 160, first through hole; 200, second mold body; 210, second limit piece; 211, second space; 212, second limit block; 220, second weight-reducing through hole; 230, second through hole; 300, mold core; 310, first wall structure; 311, first side surface; 320, second wall structure; 321, second side surface; 322, wiring groove; 330, activity space; 340, weight-reducing groove; 350, sliding part; 351, guide column; 400, support body; 410, weight-reducing hollow hole; 510, rotating shaft; 520, locking member. DETAILED DESCRIPTION

[0040] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the utility model after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] In addition, in the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "an embodiment", "the embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The technical solution, its implementation process and principle will be further explained below in conjunction with the accompanying drawings.

[0045] Example 1

[0046] See also Figure 1-Figure 8A molding device for a coil for forming a uniform electromagnetic field includes a first mold body 100, a second mold body 200 and a plurality of mold cores 300, wherein the plurality of mold cores 300 are movably connected to the first mold body 100, and the plurality of mold cores 300 are distributed on a circumference, the first mold body 100 and the second mold body 200 are connected, the mold core 300 is clamped between the first mold body 100 and the second mold body 200, the outer peripheral side portion of the mold core 300 is exposed between the first mold body 100 and the second mold body 200, and the outer peripheral side portion of the mold core 300 is provided with a winding portion for winding a wire, and a support body 400 is also provided on the second mold body 200, the support body 400 cooperates with the mold core 300 to abut against the mold core 300 to push the mold core 300 to move radially along the circumference, thereby adjusting the diameter of the winding portion.

[0047] In this embodiment, if Figure 1 , 2 As shown, the first mold body 100 and the second mold body 200 can be circular plate-like structures, and multiple mold cores 300 are movably connected to one end face of the first mold body 100, wherein the multiple mold cores 300 are distributed in a circle on the end face, and the center of the circle can coincide with the center of the first mold body 100. A support body 400 is connected to an end face of the second mold body 200 opposite to the first mold body 100. During installation, the first mold body 100 and the second mold body 200 are connected relative to each other in the axial direction of the first mold body 100, and the support body 400 on the second mold body 200 is opposite to the mold core 300. When the first mold body 100 and the second mold body 200 are connected, The first mold body 100 and the second mold body 200 clamp the mold core 300 therebetween, and there is a certain gap between the first mold body 100 and the second mold body 200, so that part of the outer circumference of the mold core 300 is exposed between the first mold body 100 and the second mold body 200, and the plurality of mold cores 300 are distributed circumferentially on the first mold body 100, so that the exposed outer circumference of the mold core 300 is also surrounded by a circle, and this part forms a winding part. When the winding work is performed, the first mold body 100, the mold core 300 and the second mold body 200 are rotated so that the wire is wound on the winding part to form the coil to be prepared, wherein the diameter of the coil is the diameter of the winding part. In addition, a support body 400 is provided on the second mold body 200. When the first mold body 100 and the second mold body 200 are connected, the support body 400 and the mold core 300 are matched and abutted, and the mold core 300 is pushed to move to the corresponding position in the radial direction, so that the diameter of the winding part reaches the diameter of the prepared coil. When the coil winding is completed, the first mold body 100 and the second mold body 200 are separated, and the support body 400 is also separated from the mold core 300. Then the mold core 300 is moved in the opposite direction, so that the diameter of the circle surrounded by the mold core 300 is reduced, and the coil falls off the winding part, thereby facilitating demoulding.

[0048] In the above structure, a plurality of mold cores 300 are movably arranged on the first mold body 100, and a support body 400 is arranged on the second mold body 200. When the first mold body 100 and the second mold body 200 are connected, the support body 400 cooperates with and abuts against the mold core 300 to push the mold core 300 to move radially and adjust the diameter of the winding part. On the one hand, the mold core 300 is pushed to different positions by the support body 400 to adjust the different diameter sizes of the winding part to meet the needs of winding coils of different diameters; on the other hand, after the winding work is completed, the first mold body 100 and the second mold body 200 are separated, so that the support body 400 is separated from the mold core 300, and then the mold core 300 is moved in the opposite radial direction to reduce the diameter of the winding part, thereby facilitating demolding and avoiding the situation where the coil is tightly wound around the winding part and is difficult to remove after the winding is completed.

[0049] In the specific structure of the mold core 300, the mold core 300 is sequentially provided with a first wall structure 310 and a second wall structure 320 along the radial direction of the circumference, the first wall structure 310 is provided with a first side surface 311, and the second wall structure 320 is provided with a second side surface 321. The first side surfaces 311 of the plurality of first wall structures 310 enclose an activity space 330. When the first mold body 100 and the second mold body 200 are connected, the support body 400 is movably accommodated in the activity space 330, and the outer side surface of the support body 400 abuts against the first side surface 311 to drive the mold core 300 to move. The second side surfaces 321 of the plurality of second wall structures 320 enclose a winding portion. A weight reduction groove 340 is provided between the first wall structure 310 and the second wall structure 320. Both the first wall structure 310 and the second wall structure 320 are arc-shaped structures.

[0050] In this embodiment, if Figure 3 , 4As shown in FIG. 5 , four mold cores 300 may be provided, and the four mold cores 300 are distributed circumferentially on the first mold body 100. The mold cores 300 are provided with a first wall structure 310 and a second wall structure 320 along a radial direction, wherein the first wall structure 310 and the second wall structure 320 are both arc-shaped structures, and the four mold cores 300 form an annular structure, the first wall structure 310 is located at the inner ring of the annular structure, and the second wall structure 320 is located at the outer ring of the annular structure, the inner side surface of the first wall structure 310 forms a first side surface 311, and the outer side surface of the second wall structure 320 forms a second side surface 321. When the four mold cores 300 form a circle, the first side surfaces 311 of the four mold cores 300 form an active space 330, and the second side surfaces 321 located at the outer ring form a winding portion. When the first mold body 100 and the second mold body 200 are connected in the axial direction, the support body 400 can move axially in the active space 330, and the outer side surface of the support body 400 abuts against the first side surface 311. During the axial movement of the support body 400, the mold core 300 is gradually pushed radially outward, so that the winding portion surrounded by the second side surfaces 321 of the four mold cores 300 reaches the diameter of the coil to be prepared. The diameter of the coil to be prepared is adjusted by the support body 400 and the first side surface 311 cooperating and abutting to push the movement of the mold core 300. The structure is simple and easy to operate. In addition, there is a weight-reducing groove 340 between the first wall structure 310 and the second wall structure 320 on the mold core 300. In this embodiment, the mold core 300 is a metal structure. By providing the weight-reducing groove 340, the weight of the mold core 300 can be reduced to facilitate movement and loading and unloading.

[0051] In the specific structure of the support body 400, as Figure 6 As shown, the support body 400 is an axial structure, the outer side surface of the support body 400 is gradually tilted inward from the second mold body 200 along the axial direction of the support body 400, and the first side surface 311 of the first wall structure 310 is gradually tilted outward from the first mold body 100 along the circumferential axial direction, and the tilt angle of the outer side surface of the support body 400 is consistent with the tilt angle of the first side surface 311. A plurality of weight-reducing hollow holes 410 are provided inside the support body 400.

[0052] In this embodiment, if Figure 8As shown, the support body 400 can be an axial structure, for example, the support body 400 can be a truncated cone-shaped structure, and the outer side surface of the support body 400 is tilted along its own axial direction, wherein an end surface of the support body 400 with a larger diameter is connected to the second mold body 200, so that the tilt direction of the outer side surface of the support body 400 gradually tilts inward from one side of the second mold body 200, and the axial direction of the support body 400 is consistent with the axial direction of the second mold body 200, and the first side surface 311 in the mold core 300 is also tilted, and the tilt direction of the first side surface 311 is opposite to the tilt direction of the outer side surface of the support body 400, that is, the first side surface 311 gradually tilts outward from one side of the first mold body 100, and the inclination angle of the outer side surface of the support body 400 is consistent with the inclination angle of the first side surface 311. When the first mold body 100 and the second mold body 200 are connected, the support body 400 is inserted into the active space 330, and the outer side surface of the support body 400 is abutted against the first side surface 311. As the support body 400 moves axially, the diameter of the outer side surface of the support body 400 gradually increases, while the diameter of the first side surface 311 of the active space 330 along the moving direction of the support body 400 gradually decreases. Therefore, as the support body 400 moves in the active space 330, the support body 400 gradually pushes the core 300 to move radially outward until the connection between the first mold body 100 and the second mold body 200 is completed, the support body 400 extends to the corresponding position in the active space 330, and the winding part reaches the corresponding diameter, so that the winding work can be carried out. At this time, the support body 400 supports the core 300 in the active space 330, and also avoids the pressure exerted by the coil on the core 300 during the winding work, causing the core 300 to move inward, affecting the coil winding, thereby improving the stability and uniformity of the coil winding. In addition, the support body 400 is provided with a plurality of weight-reducing hollow holes 410 along its own axial direction, so as to reduce the overall weight of the support body 400 and facilitate installation and disassembly.

[0053] Specifically, the support body 400 is detachably connected to the second mold body 200. In addition, the molding device for forming a coil of a uniform electromagnetic field includes at least two support bodies 400, and the two support bodies 400 have different outer dimensions. In this embodiment, one end of the support body 400 can be connected to the second mold body 200 by a connecting structure such as a bolt, and the support body 400 and the second mold body 200 are set as a split structure. When the support body 400 needs to be replaced or repaired, it is only necessary to remove the support body 400, which is easy to operate and can further reduce the maintenance cost. In addition, a plurality of support bodies 400 with different outer dimensions can be set. When coils of different diameters need to be wound, a support body 400 with a corresponding outer dimension can be selected to be connected to the second mold body 200 to push the core 300 to the corresponding diameter position, thereby improving the applicability of the device.

[0054] Among them, the mold core 300 is on the movable structure of the first mold body 100, one end of the first wall structure 310 and one end of the second wall structure 320 are connected to form a sliding part 350, the sliding part 350 is movably connected to the first mold body 100, the sliding part 350 is provided with a guide column 351, and a guide groove 110 is provided at a corresponding position of the first mold body 100. The guide column 351 is movably arranged in the guide groove 110. When the mold core 300 moves in the radial direction, the guide column 351 moves along the guide groove 110.

[0055] In this embodiment, the first wall structure 310 and the second wall structure 320 on the mold core 300 are connected at one end close to the first mold body 100, and form a sliding portion 350, which is movably connected to one side end surface of the first mold body 100, wherein a guide groove 110 is provided on the first mold body 100, and the guide groove 110 can be a rectangular through-hole structure penetrating the first mold body 100, and a guide column 351 is connected to the sliding portion 350, and the extension direction of the guide column 351 is parallel to the axial direction of the first mold body 100, so that the guide column 351 is arranged through the guide groove 110, and when the mold core 300 moves radially, the guide column 351 moves in the guide groove 110, thereby limiting and guiding the movement of the mold core 300, improving the stability of the movement of the mold core 300, and avoiding its deviation, thereby making the winding part of the mold core 300 form an irregular shape, affecting the winding of the coil. In addition, at least two guide pillars 351 are provided on each mold core 300 , and a consistent number of guide through grooves 110 are also provided at corresponding positions on the first mold body 100 , so as to further ensure the stability of the movement of the mold core 300 .

[0056] In one embodiment, the guide post 351 includes a stud and a nut connected to each other, and a threaded structure is provided at one end of the stud away from the nut. The stud passes through the guide slot 110 and is connected to the sliding part 350, and the diameter of the nut is greater than the width of the guide slot 110. A threaded hole matching the stud is provided at a corresponding position on the sliding part 350 of the core 300, and the stud is passed through the guide slot 110 from one end of the first mold body 100 opposite to the core 300 to match and connect with the threaded hole on the core 300, thereby connecting the core 300 to the first mold body 100, wherein a nut is provided at one end of the guide post 351 away from the core 300, and the diameter of the nut is greater than the width of the guide slot 110, so as to further prevent the core 300 from falling off from the first mold body 100.

[0057] In addition, the first mold body 100 is provided with a plurality of first weight-reducing through holes 120, and a slideway 130 is formed between two adjacent first weight-reducing through holes 120, and the mold core 300 moves along the slideway 130. In this embodiment, since the first mold body 100 is made of metal, in order to further reduce the weight of the first mold body 100, a plurality of first weight-reducing holes are provided on the first mold body 100, and the first weight-reducing holes may be a through-hole structure that penetrates the first mold body 100 along the axial direction, for example, four first weight-reducing holes are provided that are evenly spaced, and a slideway 130 is formed between two adjacent first weight-reducing holes, and a single mold core 300 is supported on the slideways 130 on both sides of a first weight-reducing hole.

[0058] In addition, the winding portion is provided with a plurality of wiring grooves 322 along the axial direction of the circumference, and the plurality of wiring grooves 322 are evenly spaced. The depth of the wiring grooves 322 is one third or one fourth of the diameter of the wire.

[0059] In this embodiment, in order to improve the uniformity of coil winding and avoid repeated winding, a plurality of wire grooves 322 are provided on the winding portion, and the number of the wire grooves 322 should not be less than the number of turns of the coil to be wound. When performing the winding work, the wire is first placed in the first wire groove 322, and then the core mold 300 is rotated axially, so that the wire is wound axially into the plurality of wire grooves 322 in sequence until the set number of turns is reached and the wire grooves 322 are provided on the core mold 300 to further ensure the stability of the coil winding. In addition, the depth of the wire groove 322 is one-third or one-quarter of the diameter of the wire used, thereby effectively limiting the movement of the wire and facilitating the demolding of the coil after winding.

[0060] Specifically, a side of the first mold body 100 and / or the second mold body 200 close to the mold core 300 is provided with an avoidance groove 140, which is communicated with the winding part to allow the supply wire to pass through, and the avoidance groove 140 extends to the edge of the side. In this embodiment, an avoidance groove 140 is provided on the first mold body 100, and one end of the avoidance groove 140 is communicated with the winding part, that is, the avoidance groove 140 can be communicated with the first wiring groove 322 on the mold core 300, and the second end of the avoidance groove 140 extends to the edge of the first mold body 100. When winding the first turn of the coil, the wire end is first fixed and tightened on the edge of the first mold body 100 through the avoidance groove 140. Since the required wire end is bent after transportation or cutting, directly fixing the wire end in the wiring groove 322 for winding is easy to cause interference when winding the second turn. Therefore, the wire end needs to be avoided. The avoidance groove 140 is provided on the first mold body 100, which can ensure that the wire is in a straight state when winding the first turn, and avoid occupying the position of the wiring groove 322, thereby affecting the winding of the first turn of the coil. In addition, the avoidance groove 140 is provided at the position where the coil is initially wound. In other embodiments, if the coil is wound starting from the second mold body 200, the avoidance groove 140 may also be provided on the second mold body 200. The avoidance groove 140 is a straight groove, so that when the wire head passes through the avoidance groove 140, it has a certain shaping effect on the wire, so that the wire is guaranteed to be straight.

[0061] Furthermore, the molding device for forming a coil of a uniform electromagnetic field further includes a first stopper 150, the first stopper 150 is connected to the first mold body 100, the first stopper 150 is provided with a first space 151, and the mold core 300 is movably disposed in the first space 151. The first stopper 150 may include a plurality of first stopper blocks 152, the plurality of first stopper blocks 152 are connected to the first mold body 100 at uniform intervals around the circumference, and the plurality of first stopper blocks 152 surround the first space 151.

[0062] In this embodiment, a first limiting member 150 is also connected to the first mold body 100. The first limiting member 150 is arranged along the circumference of the first mold body 100, and the first limiting member 150 is an annular structure. A first space 151 is formed at the inner ring. The mold core 300 is installed in the first space 151. The first limiting member 150 can limit the radial movement of the mold core 300. When the mold core 300 moves to a certain position in the radial direction, the mold core 300 abuts against the inner side wall of the first limiting member 150 and limits the mold core 300 from continuing to move. The first limiting member 150 can be composed of a plurality of first limiting blocks 152. The first limiting blocks 152 are arc-shaped plate structures. The plurality of first limiting blocks 152 are connected to the first mold body 100 in a circular shape. A certain gap is retained between two adjacent first limiting blocks 152, which can allow the line to pass and reduce costs. In addition, the avoidance groove 140 can also be set on the first limiting member 150, so that when the avoidance groove 140 has problems such as cracks after long-term use, it is convenient to replace it.

[0063] Furthermore, a second limiting member 210 is connected to the second mold body 200, and the second limiting member 210 is provided with a second space 211. When the first mold body 100 is connected to the second mold body 200, the mold core 300 is movably disposed in the second space 211. The second limiting member 210 includes a plurality of second limiting blocks 212, which are connected to the second mold body 200 at even intervals around the circumference, and the plurality of second limiting blocks 212 enclose the second space 211. Similar to the structure of the first stopper 150, the second stopper 210 is arranged along the circumference of the second mold body 200. The second stopper 210 is an annular structure. When the first mold body 100 and the second mold body 200 are connected, part of the mold core 300 is arranged in the second space 211. The second stopper 210 also limits the radial movement of the mold core 300. The diameters of the first space 151 of the first stopper 150 and the second space 211 of the second stopper 210 are consistent. The second stopper 210 is also a split structure composed of multiple second stopper blocks 212, which is easy to install and disassemble. A second weight-reducing through hole 220 can also be set on the second mold body 200 to further reduce the overall weight.

[0064] Example 2

[0065] A uniform electromagnetic field coil forming system includes a driving mechanism and a forming device for a coil forming a uniform electromagnetic field, wherein the driving mechanism is provided with a driving member and a rotating shaft 510, a first mold body 100 is provided with a first through hole 160, and a second mold body 200 is provided with a second through hole 230, the rotating shaft 510 passes through the first through hole 160 and the second through hole 230 and is fixedly connected to the first mold body 100 and the second mold body 200, the driving member is fixedly connected to the rotating shaft 510, and drives the rotating shaft 510 to rotate around its own axis, thereby driving the first mold body 100, the mold core 300 and the second mold body 200 to rotate.

[0066] In this embodiment, the first mold body 100 and the second mold body 200 are both circular plate structures. A first through hole 160 is arranged at the center of the first mold body 100, and a second through hole 230 is arranged at the center of the second mold body 200. After the first mold body 100 and the second mold body 200 are connected, the first through hole 160 and the second through hole 230 are arranged opposite to each other, and then one end of the rotating shaft 510 passes through the first through hole 160 and the second through hole 230 in sequence, and is fixedly connected to the first mold body 100 and the second mold body 200. One end of the rotating shaft 510 is connected to a driving member, and the driving member can select a stepping motor, and the output end of the motor is fixedly connected to the rotating shaft 510 to drive the rotating shaft 510 to rotate along its axial direction, thereby driving the first mold body 100, the mold core 300 and the second mold body 200 to rotate along the axis, thereby completing the winding work of the coil.

[0067] Specifically, Figure 7 , 8 As shown, in the structure for connecting the rotating shaft 510 with the first mold body 100 and the second mold body 200, the system further includes a locking member 520, which is connected with the rotating shaft 510 to lock and fix the rotating shaft 510 on the first mold body 100 and the second mold body 200. The locking member 520 is a nut structure with a side hole. In this embodiment, the locking member 520 is a nut structure with a hole on the side, and a threaded structure is provided at one end of the rotating shaft 510. In addition, a mounting seat is fixed to the portion of the rotating shaft 510 close to the first mold body 100. After one end of the rotating shaft 510 passes through the first through hole 160, the mounting seat is fixed to the first mold body 100 by bolts, and then the rotating shaft 510 passes through the second through hole 230, and then the locking member 520 is matched and connected with one end of the rotating shaft 510, and one end face of the locking member 520 abuts against the end face of the second mold body 200 to fix the rotating shaft 510 to the second mold body 200, wherein a plurality of threaded holes are evenly spaced on the side of the locking member 520, and then abutted against the rotating shaft 510 by corresponding screws or bolts to prevent the rotating shaft 510 from separating and falling off from the locking member 520 during rotation, thereby affecting the fixation of the rotating shaft 510 and the second mold body 200, and further affecting the normal winding work of the coil.

[0068] It should be understood that the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the utility model.

Claims

1. A forming device for a coil for forming a uniform electromagnetic field, characterized in that: include: A first mold body, a second mold body and a plurality of mold cores, wherein the plurality of mold cores are movably connected to the first mold body and are distributed on a circumference, the first mold body and the second mold body are connected, the mold core is clamped between the first mold body and the second mold body, the outer peripheral side portion of the mold core is exposed between the first mold body and the second mold body, and the outer peripheral side portion of the mold core is provided with a winding portion for winding a wire, and the second mold body is also provided with a support body, the support body cooperates and abuts against the mold core to push the mold core to move radially along the circumference, thereby adjusting the diameter of the winding portion.

2. A forming device for a coil for forming a uniform electromagnetic field according to claim 1, characterized in that: The mold core is provided with a first wall structure and a second wall structure in sequence along the radial direction of the circumference, the first wall structure is provided with a first side surface, the second wall structure is provided with a second side surface, and the first side surfaces of the plurality of first wall structures form an active space. When the first mold body and the second mold body are connected, the support body is movably accommodated in the active space, and the outer side surface of the support body abuts against the first side surface to drive the mold core to move, and the second side surfaces of the plurality of second wall structures form the winding portion.

3. A forming device for a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: A weight-reducing groove is provided between the first wall structure and the second wall structure.

4. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: The first wall structure and the second wall structure are both arc-shaped structures.

5. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: The support body is an axial structure, the outer side surface of the support body is gradually inclined inward from the second mold body along the axial direction of the support body, the first side surface of the first wall structure is gradually inclined outward from the first mold body along the axial direction of the circumference, and the inclination angle of the outer side surface of the support body is consistent with the inclination angle of the first side surface.

6. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: A plurality of weight-reducing hollow holes are arranged inside the support body.

7. A forming device for a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: The support body is detachably connected to the second mold body.

8. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: The forming device for forming a coil of a uniform electromagnetic field comprises at least two supporting bodies, and the two supporting bodies have different outer dimensions.

9. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: One end of the first wall structure and one end of the second wall structure are connected to form a sliding part, and the sliding part is movably connected to the first mold body. The sliding part is provided with a guide column, and a guide groove is provided at a corresponding position of the first mold body. The guide column is movably arranged in the guide groove.

10. A forming device for a coil for forming a uniform electromagnetic field according to claim 9, characterized in that: The guide column comprises a connected stud and a nut, wherein one end of the stud away from the nut is provided with a threaded structure, the stud passes through the guide slot and is connected to the sliding part, and the diameter of the nut is greater than the width of the guide slot.

11. A forming device for a coil for forming a uniform electromagnetic field according to claim 2, characterized in that: The first mold body is provided with a plurality of first weight-reducing through holes, and a slideway is formed between two adjacent first weight-reducing through holes, and the mold core moves along the slideway.

12. The forming device for forming a coil for forming a uniform electromagnetic field according to claim 1, characterized in that: The winding portion is provided with a plurality of wiring grooves along the axial direction of the circumference, and the plurality of wiring grooves are evenly spaced.

13. A forming device for a coil for forming a uniform electromagnetic field according to claim 12, characterized in that: The depth of the wiring groove is one third or one quarter of the diameter of the wire.

14. The forming device of a coil for forming a uniform electromagnetic field according to claim 1, characterized in that: The first mold body and / or the second mold body is provided with an avoidance groove on a side surface close to the mold core, the avoidance groove is communicated with the winding portion so as to allow the wire to pass through, and the avoidance groove extends to the edge of the side surface.

15. The forming device of a coil for forming a uniform electromagnetic field according to claim 1, characterized in that: Also includes: A first limiting member, wherein the first limiting member is connected to the first mold body, the first limiting member is provided with a first space, and the mold core is movably arranged in the first space.

16. A forming device for forming a coil for forming a uniform electromagnetic field according to claim 15, characterized in that: The first limiting member includes a plurality of first limiting blocks, and the plurality of first limiting blocks are connected to the first mold body at even intervals around the circumference, and the plurality of first limiting blocks surround the first space.

17. A forming device for a coil for forming a uniform electromagnetic field according to claim 15, characterized in that: Also includes: The second limiting member is connected to the second mold body, and the second limiting member is provided with a second space. When the first mold body is connected to the second mold body, the mold core is movably arranged in the second space.

18. A forming device for a coil for forming a uniform electromagnetic field according to claim 17, characterized in that: The second limiting member includes a plurality of second limiting blocks, and the plurality of second limiting blocks are connected to the second mold body at even intervals around the circumference, and the plurality of second limiting blocks surround the second space.

19. A forming system for a coil for forming a uniform electromagnetic field, characterized in that: include: A driving mechanism and a forming device for a coil for forming a uniform electromagnetic field as described in any one of claims 1 to 18, wherein the driving mechanism is provided with a driving member and a rotating shaft, the first mold body is provided with a first through hole, the second mold body is provided with a second through hole, the rotating shaft passes through the first through hole and the second through hole and is fixedly connected to the first mold body and the second mold body, the driving member is fixedly connected to the rotating shaft and drives the rotating shaft to rotate around its own axis, thereby driving the first mold body, the mold core and the second mold body to rotate.

20. A forming system for a coil for forming a uniform electromagnetic field according to claim 19, characterized in that: Also includes: A locking member is cooperatively connected with the rotating shaft to lock and fix the rotating shaft on the first mold body and the second mold body.

21. A forming system for a coil for forming a uniform electromagnetic field according to claim 20, characterized in that: The locking piece is a nut structure with a hole on the side.

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