Pole coil winding mold convenient to demold

Abstract

A pole coil winding mold convenient to demold comprises a base, a winding column is perpendicularly and rotationally connected to the upper portion of the base, a plurality of semicircular spacers are connected to one side of the winding column at intervals in the height direction of the winding column, and the radius of each spacer is not smaller than that of an end arc of a pole coil; the base can be further connected with a supporting unit, the supporting unit is provided with a detachable supporting part, the supporting part abuts against the side face, opposite to the spacer, of the wrapping post so as to support the wrapping post and limit rotation of the wrapping post, and the supporting part and the wrapping post can be contained in a span area in the middle of the pole coil. According to the winding die provided by the utility model, the supporting unit supports the winding post by abutting against the winding post, so that the winding post can bear larger tension during winding. After winding is completed, the supporting part is detached, the winding column is rotated by 90 degrees, the coil can be demolded by slightly pushing the coil, the whole demolding process is simple and rapid, and the mold has certain structural strength.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor manufacturing equipment field, concretely is a magnetic pole coil winding mould convenient to demould. BACKGROUND

[0002] The stator coil or rotor coil is formed by winding the wire in the motor manufacturing process, and the motor coil winding generally has a flat winding method or a lap winding method. The wire bending of the coil winding by the flat winding method is bending along the thickness direction of the wire, and the wire bending of the coil winding by the lap winding method is bending along the width direction of the wire. Figure 1 The magnetic pole coil S of a certain motor shown adopts the lap winding method, and a special winding mold needs to be used when winding the coil. A plurality of partition plates are generally inserted on the winding mold. Each layer of wire is embedded in the gap between adjacent partition plates to form a multi-layer lap winding annular magnetic pole coil S. The two ends of the magnetic pole coil are semicircular end arc S1, and the middle is a rectangular middle span area S2. When the coil is tightly wound, the winding mold bears a large tension, so the structure design of the winding mold needs to have a certain structural strength, and after the coil is wound, each partition plate is wedged into the coil stack, and demolding will be more difficult. In the prior art, the partition plates need to be disassembled for demolding, and the demolding process is more cumbersome.

[0003] Through retrieval, there are related winding mold technical documents disclosed in the prior art. For example, the invention patent publication document with the publication number "CN110034646A" and the name "magnetic pole coil winding mold and winding method using the magnetic pole coil winding mold". Disclosed a kind of magnetic pole coil winding mold and winding method using the magnetic pole coil winding mold, including: rear mold, front mold, unwinding clamping plate group and unwinding disc, rear mold includes the rear mold stop plate and wedge-shaped rear mold core shaped in series;The front mold includes the front mold stop plate and wedge-shaped front mold core shaped in series;The slope of wedge-shaped rear mold core is suitable for being matched with the slope of wedge-shaped front mold core to make wedge-shaped rear mold core and wedge-shaped front mold core split to form the winding mold core suitable for electromagnetic wire winding;Front mold stop plate is suitable for being distributed with rear mold stop plate, and interval for splitting wedge-shaped rear mold core and wedge-shaped front mold core is formed between rear mold stop plate and front mold stop plate;The unwinding clamping plate group includes a pair of turn clamping plates arranged oppositely. The contrast file aims to improve the compactness of the magnetic pole coil after winding, and does not provide the corresponding technical scheme for demolding after winding.

[0004] For example, the publication number is "CN221081126U", the name is "a adjustable convenient to install winding mold" of utility model authorization announcement file. Type discloses a adjustable convenient to install winding mold, including mold body, winding column, top block, bottom plate, stretch rod, guardrail, mounting plate and fixed structure, the mold body includes winding column, the winding column is divided into two, the top of two winding column is provided with top block, the bottom of two winding column is provided with bottom plate, the stretch rod is connected between two winding column, the both sides above of bottom plate is installed with guardrail, the outer wall four side edges of winding column are all fixedly installed with mounting plate, the top of mounting plate is provided with fixed structure. The winding mold involved in the comparison file can adjust the size of the mold by setting the stretch rod between the two winding columns, so as to realize the winding of different size coils, and no corresponding technical scheme is provided for demolding after winding.

[0005] Therefore, it is of great significance to provide a magnetic pole coil winding mold facilitating demolding in the art. Utility model content

[0006] In view of the deficiencies of the prior art, the utility model provides a magnetic pole coil winding mold facilitating demolding, which comprises a base, a winding column vertically and rotatably connected above the base, a plurality of semicircular spacers are connected to one side of the winding column along the height direction of the winding column, the radius of the spacer is not less than the radius of the end arc of the magnetic pole coil; a supporting unit can also be connected to the base, the supporting unit has a detachable supporting part, the supporting part abuts against the side surface of the winding column opposite to the spacer to support the winding column and limit the rotation of the winding column, and the supporting part and the winding column can be accommodated in the middle span area of the magnetic pole coil.

[0007] Further, the supporting unit comprises a supporting column connected to the base, and a supporting plate is detachably connected between the supporting column and the winding column.

[0008] Further, a sliding groove is formed in the side surface of the supporting column, and one side edge of the supporting plate is embedded in the sliding groove and the other side edge abuts against the side surface of the winding column.

[0009] Further, a gap adjusting member is connected to the side surface of the winding column abutting against the supporting plate, and the gap adjusting member has an extension part that can extend towards the side surface of the winding column, and the distance between the extension part and the side surface of the winding column is adjustable.

[0010] Further, the gap adjusting member is an inlay block embedded in the side surface of the winding column abutting against the supporting plate, and the inlay block is connected to the side surface of the supporting plate through screws and adjusts the embedding depth.

[0011] Further, the chute is arranged with a draft taper, the top of the support plate has an extended fixing lug, the fixing lug is overlapped on the top of the chute, a fixing block is connected above the fixing lug, and a bolt penetrates through the fixing block and the fixing lug to fix the top of the support plate on the top of the chute; the bottom of the support plate has a downwardly extended plug-in lug, a clamping groove is arranged on the bottom of the side surface of the support column, and the plug-in lug is embedded in the clamping groove to constrain the bottom of the support plate.

[0012] Further, a wedge block is further connected between the fixing lug and the top of the support column, a slanted groove is arranged on the top of the support column, and the wedge block is slidingly connected in the slanted groove and adjusts the height of the support plate through the upper surface of the wedge block contacting the bottom surface of the fixing lug.

[0013] Further, a triangular lining plate is further connected on the other side of the support column relative to the support plate, the triangular lining plate, the support column and the support plate are all vertically connected on a support base, and the support base is slidingly connected on a base.

[0014] Further, a rotating base is connected on the bottom of the winding column, the rotating base is sleeved in a fixing base, the rotating base can rotate in the fixing base, and a limiting component is connected between the rotating base and the fixing base to limit the rotation of the rotating base relative to the fixing base.

[0015] Further, a coil lining pad is further connected above the fixing base, and the height of the coil lining pad is flush with the bottommost end of the spacer of the winding column.

[0016] Compared with the prior art, the technical scheme of the present application has the following beneficial effects: the winding mold provided by the present application provides support for the winding column through abutting against the winding column, so that the winding column can bear the large tension during winding. After winding is completed, the support part is disassembled, the winding column is rotated by 90 degrees, and the coil can be demolded by slightly pushing the coil. The whole demolding process is simple and fast, and the mold has a certain structural strength. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 : structural diagram of a magnetic pole coil;

[0018] Figure 2 : structural diagram of the winding mold;

[0019] Figure 3 : structural diagram of the winding mold after the winding column is rotated Figure 1 ;

[0020] Figure 4 : structural diagram of the winding mold after the winding column is rotated Figure 2 ;

[0021] Figure 5 : use state diagram of the winding mold. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] A magnetic pole coil winding mold convenient for demolding, comprising a base 1, a winding column 2 vertically and rotatably connected above the base 1, a plurality of semicircular spacers 21 are connected along the height direction of the winding column 2, the radius of the spacer 21 is not less than the radius of the end arc S1 of the magnetic pole coil S; a supporting unit 3 can also be connected to the base 1, the supporting unit 3 has a detachable supporting part, the supporting part abuts against the side surface of the winding column 2 opposite to the spacer 21 to support the winding column 2 and limit the rotation of the winding column 2, and the supporting part and the winding column 2 can be accommodated in the middle span area S2 of the magnetic pole coil S.

[0024] As shown in Figure 1 and Figure 5 , when the magnetic pole coil S is wound, the spacer 21 on the winding column 2 is opposite to the end arc S1 at this time, and the stacked winding is embedded into the gap between adjacent spacers 21 layer by layer. Since the radius of the spacer 21 is not less than the radius of the end arc S1 of the magnetic pole coil S, the stacked winding end arc S1 area can have good support for the winding when passing through the spacer 21, preventing the winding from coming out. The detachable supporting part of the supporting unit 3 abuts against one side of the winding column 2 at this time, which can prevent unnecessary rotation of the winding column 2 at this time and provide support force to withstand the winding tension. The radius of the spacer 21 is preferably greater than the radius of the end arc S1, so that the support of the stacked winding in the end arc S1 area is more stable and can prevent the winding from coming out. The winding column 2 can be a semicircular column, and the upright side surface abuts against the supporting part during winding. The supporting part can be a plate-shaped supporting element or a columnar supporting element detachably connected to the base 1, but the thickness thereof should not exceed the span L of the magnetic pole coil S, so that the span area S2 of the coil does not interfere with the supporting part during demolding. After winding is completed, the supporting part is detached, and the winding column 2 is rotated by ninety degrees, which can be seen from Figure 3At this time, slightly push the coil can be pushed out of the gap of the spacer 21, and then pull the coil vertically upward to complete the demolding. The top or bottom end of the winding column 2 can be connected with a handle 24 for convenient rotation operation. Obviously, the diameter of the spacer 21 is smaller than the span L, otherwise the span area S2 will interfere with the spacer 21 after the winding column 2 is rotated, resulting in that the coil cannot be completely demolded from the gap of the spacer 21. It can be understood that the mold with this structure design is not suitable for demolding in some coil winding with small span because the radius of the spacer 21 is required. Because the spacer 21 will interfere with the middle span area S2 of the pole coil S even after rotating 90 degrees.

[0025] In a more preferred embodiment, as Figure 2 and Figure 3 The support unit 3 includes a support column 31 connected to the base 1, and a support plate 32 detachably connected between the support column 31 and the winding column 2. The thickness of the support column 31 and the support plate 32 is smaller than the span L. The center of the support plate 32 can be provided with a circular hole, which has the effect of weight reduction, and can be used as a hand pulling force part when disassembled.

[0026] In a more preferred embodiment, the support column 31 is provided with a sliding groove 311 on the side surface, and the support plate 32 is embedded in the sliding groove 311 on one side and abuts against the side surface of the winding column 2 on the other side. This embodiment shows a detachable connection mode of the support plate 32 as a support part, that is, the detachable connection is achieved by the sliding groove 311. Generally, common modes such as bolts can also be used to achieve the detachable connection.

[0027] In a more preferred embodiment, the side surface of the winding column 2 abutting against the support plate 32 is further connected with a gap adjusting member, and the gap adjusting member has an extension part extending towards the side surface of the winding column 2, and the distance between the extension part and the side surface of the winding column 2 is adjustable. During the process of laminated winding, the winding is gradually layered from the bottom to the top, and the higher the layering, the greater the tension that the winding column 2 bears. Based on the principle of torque, the upper part of the winding column 2 bears greater tension than the middle and lower parts, so the upper part of the support plate 32 also bears greater abutting force. After long-term use, the upper part of the winding column 2 may be inclined, which causes it to fail to ensure the strict vertical state with the base 1. The inclined winding column 2 will cause the finally formed pole coil S to have a gradually decreasing shape from the bottom layer to the top layer, which is not a cylindrical shape, and will cause the wound coil to be unqualified. In order to solve the above problem, it is necessary to make a certain gap compensation for the inclination of the upper part of the winding column 2. The extension part of the gap adjusting member is adjustable, and when greater gap compensation is needed, the extension part can be adjusted to extend more from the side surface of the support plate 32, and the extension part is used to abut against the side surface of the winding column 2 to compensate for the gap caused by the inclination.

[0028] One possible implementation of the gap adjustment member can be that the gap adjustment member is an inlay block 321 inlaid on the side of the support plate 32 against the winding column 2, the inlay block 321 is connected with the side of the support plate 32 by screws and adjusts the embedding depth thereof. When the winding column 2 can be kept vertical during winding, the inlay block 321 can not be adjusted to be completely embedded in the side of the support plate 32, at this time the side of the support plate 32 can be used to abut against the winding column 2. When the winding column 2 is inclined, the inlay block 321 can be adjusted to protrude from the side of the support plate 32, the inlay block 321 is used to abut against the winding column 2, so that the gap of the inclined winding column 2 can be compensated and the winding column 2 can be straightened.

[0029] In a more preferred implementation, the chute 311 is arranged with a draft taper, the support plate 32 has an extended fixing lug 322 on the top thereof, the fixing lug 322 is overlapped on the top of the chute 311, a fixing block 312 is connected above the fixing lug 322, and a bolt penetrates through the fixing block 312 and the fixing lug 322 to fix the top of the support plate 32 on the top of the chute 311; the support plate 32 has a downwardly extending plug-in lug 323 on the bottom thereof, the support column 31 has a clamping groove 313 on the bottom of the side thereof, and the plug-in lug 323 is embedded in the clamping groove 313 to constrain the bottom of the support plate 32.

[0030] The chute 311 is arranged with a draft taper, which can facilitate the disassembly of the support plate 32 after winding. The support plate 32 has an extended fixing lug 322 on the top thereof, the fixing lug 322 is fixed on the top by the fixing block 312 and the bolt, and the bottom of the support plate 32 is limited by the plug-in lug 323 and the clamping groove 313, so that the support plate 32 can be stably supported during winding.

[0031] In a more preferred implementation, the fixing lug 322 and the top of the support column 31 are further connected with a wedge block 314, the top of the support column 31 is provided with a slanted groove 315, and the wedge block 314 is slidingly connected in the slanted groove 315 to adjust the height of the support plate 32 by the upper surface thereof contacting the bottom surface of the fixing lug 322. Based on the above implementation, the support plate 32 is assembled and disassembled by the chute 311. After winding, the support plate 32 still bears the tension from the coil. In order to make the disassembly of the support plate 32 more convenient, the cooperation of the inclined surface of the wedge block 314 and the slanted groove 315 can lift the fixing lug 322 to a certain height, thereby facilitating the subsequent pulling out and disassembly of the support plate 32. Specifically, the bottom is an inclined surface matched with the slanted groove 315 and embedded in the slanted groove 315, when the wedge block 314 is pushed, the wedge block 314 will move upward under the action of the aforementioned inclined surface, thereby lifting the fixing lug 322 and finally lifting the support plate 32 by a certain distance, at this time the support plate 32 is slightly loose, which facilitates the subsequent pulling out and disassembly.

[0032] In a more preferable embodiment, the support column 31 is further connected with a triangular lining plate 33 on the other side of the support plate 32, and the triangular lining plate 33, the support column 31 and the support plate 32 are all vertically connected with a support base 34, which is slidingly connected with the base 1. When the coil needs to be demolded, the support base 34 can be pushed after the winding column 2 is rotated, and the coil will be demolded from the gap of the spacer 21 under the contact of the support column 31.

[0033] In a more preferable embodiment, the bottom of the winding column 2 is connected with a rotating base 22, the rotating base 22 is sleeved in a fixed base 23, the rotating base 22 can rotate in the fixed base 23, and a limiting member is connected between the rotating base 22 and the fixed base 23 for limiting the rotation of the rotating base 22 relative to the fixed base 23. An embodiment of the limiting member can be that a spring pin 232 is connected on the side of the fixed base 23, and a pin hole matched with the spring pin 232 is arranged on the side of the rotating base 22, and the rotation of the rotating base 22 can be limited and released by matching the spring pin 232 with the pin hole.

[0034] In a more preferable embodiment, when the coil is wound in a laminated manner, the end circular arc S1 at both ends of the coil is supported by the spacer 21, but the straight line region in the middle of the coil preferably also needs to be supported, so that the winding can be smoothly embedded into the gap of the spacer 21 when the winding is bent and wound to the end circular arc S1. The fixed base 23 is further connected with a coil lining 231 above, and the height of the coil lining 231 is flush with the spacer 21 at the bottom end of the winding column 2, and the coil lining 231 can provide certain support for the straight line region of the coil.

[0035] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pole coil bobbin facilitating demolding, characterized by, The device includes a base (1), a winding post (2) that is vertically and rotatably connected above the base (1), and a plurality of semi-circular spacers (21) that are spaced apart along the height direction on one side of the winding post (2). The radius of the spacers (21) is not less than the radius of the end arc (S1) of the magnetic pole coil (S), and the diameter of the spacers is less than the span (L). A support unit (3) can also be connected to the base (1). The support unit (3) has a detachable support part that abuts against the side of the winding post (2) relative to the spacers (21) to support the winding post (2) and restrict the rotation of the winding post (2). The support part and the winding post (2) can be accommodated in the middle span region (S2) of the magnetic pole coil (S).

2. The pole coil bobbin for easy demolding according to claim 1, wherein The support unit (3) includes a support column (31) connected to the base (1), and a support plate (32) is detachably connected between the support column (31) and the winding column (2).

3. The pole coil bobbin for easy demolding according to claim 2, wherein The support column (31) has a groove (311) on its side, and one side of the support plate (32) is embedded in the groove (311) while the other side abuts against the side of the winding column (2).

4. The pole coil bobbin for easy demolding according to claim 3, wherein The support plate (32) is also connected to a gap adjustment member on the side of the winding post (2), the gap adjustment member having an extension that can face the side of the winding post (2), the distance of the extension from the side of the winding post (2) being adjustable.

5. The pole coil bobbin for easy demolding according to claim 4, wherein The gap adjustment component is an insert (321) embedded in the side of the support plate (32) against the winding post (2). The insert (321) is connected to the side of the support plate (32) by screws and its embedding depth is adjusted.

6. The pole coil bobbin for easy demolding according to claim 3, wherein The slide (311) is inclined with a draft taper. The top of the support plate (32) has an extended fixing ear (322). The fixing ear (322) overlaps the top of the slide (311). A fixing block (312) is connected above the fixing ear (322). Bolts pass through the fixing block (312) and the fixing ear (322) to fix the top of the support plate (32) to the top of the slide (311). The bottom of the support plate (32) has a downwardly extending insertion ear (323). A slot (313) is opened on the bottom side of the support column (31). The insertion ear (323) is embedded in the slot (313) to constrain the bottom of the support plate (32).

7. The pole coil bobbin for easy demolding according to claim 6, wherein A wedge (314) is also connected between the top of the fixed ear (322) and the top of the support column (31). A groove (315) is opened at the top of the support column (31). The wedge (314) is slidably connected in the groove (315) and adjusts the height of the support plate (32) by contacting the bottom surface of the fixed ear (322) with its upper surface.

8. The pole coil bobbin for easy demolding according to claim 6, wherein A triangular liner (33) is also connected to the other side of the support column (31) relative to the support plate (32). The triangular liner (33), the support column (31), and the support plate (32) are all vertically connected to the support seat (34), which is slidably connected to the base (1).

9. The pole coil bobbin with easy demolding of claim 1, wherein, The winding post (2) is connected with a rotating seat (22) at the bottom, the rotating seat (22) is sleeved in a fixed seat (23), the rotating seat (22) can rotate in the fixed seat (23), and a limiting component is connected between the rotating seat (22) and the fixed seat (23) and used for limiting the rotation of the rotating seat (22) relative to the fixed seat (23).

10. The pole coil bobbin for easy demolding according to claim 9, wherein The fixed seat (23) is further connected with a coil gasket (231) above, and the coil gasket (231) is flush with the bottommost partition (21) of the winding post (2).

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