CN114759750B - Flat wire stator winding forming equipment and method - Google Patents

Abstract

The application relates to a flat wire stator winding forming device and a flat wire stator winding forming method, and relates to the technical field of flat wire processing. The flat wire stator winding forming equipment comprises a base, a wire inserting jig, a track board and a driving device; the plug wire jig is of a cylindrical structure, the plug wire jig is rotatably arranged on the base, a plurality of slots are formed in the peripheral surface of the plug wire jig, the slots extend along the axial direction of the plug wire jig, the plurality of slots are arranged at intervals around the central axis of the plug wire jig, and the slots are used for accommodating one end of the flat wire; the track board sets up in the base, and the track board is provided with the mounting hole that corresponds with the plug wire tool, and the plug wire tool rotationally sets up in the mounting hole, and a plurality of wire casings have been seted up to the pore wall of mounting hole, and a plurality of wire casings set up around the central axis interval of mounting hole, and the wire casing is used for holding the other end of flat wire. The driving device is used for driving the plug wire jig to rotate relative to the track pad. The flat wire stator winding forming equipment can improve the processing efficiency and the processing yield of the flat wire stator winding forming process.

Description

Flat wire stator winding forming equipment and method

Technical Field

The application relates to the technical field of flat wire stator winding production, in particular to a flat wire stator winding forming device and a flat wire stator winding forming method.

Background

The stator is the stationary part of the motor or generator. The stator consists of a stator core, a stator winding and a stand. The flat wire motor has the advantages of low cost, good temperature performance, good rigidity and the like, but the production process of the flat wire stator winding is complicated. The existing production process generally adopts manual work to twist and press a new flat wire into the shaped flat wire to enable the flat wire to be mutually nested so as to be spliced into the stator winding, the manufacturing efficiency is low, each twisting process of the flat wire is determined by experience of an operator, the operation process cannot be ensured to be stable, irregular deformation of the flat wire can be caused, and the quality of the flat wire stator winding is affected.

Disclosure of Invention

The purpose of the application is to provide a flat wire stator winding forming device and a method, which can improve the processing efficiency and the processing yield of the flat wire stator winding forming process.

The application is realized by the following technical scheme:

according to an embodiment of the first aspect of the present application, a flat wire stator winding forming device includes: base, plug wire tool, track board and drive arrangement. The plug wire jig is of a cylindrical structure, the plug wire jig is rotationally arranged on the base, a plurality of slots are formed in the outer peripheral surface of the plug wire jig, the slots extend along the axial direction of the plug wire jig, the slots are arranged at intervals around the central axis of the plug wire jig, and the slots are used for accommodating one ends of flat wires. The track board set up in the base, the track board be provided with the mounting hole that the plug wire tool corresponds, the plug wire tool rotationally set up in the mounting hole, a plurality of wire casings have been seted up to the pore wall of mounting hole, a plurality of wire casings wind the central axis interval setting of mounting hole, a plurality of wire casings with a plurality of slot one-to-one, the wire casing is used for holding the other end of flat wire. And the wire inserting jig is used for driving the wire inserting jig to rotate relative to the track board.

The plug wire jig is driven by the driving device to rotate relative to the track board, and the fixed end of the flat wire is clamped in the slot. Along with the rotation of plug wire tool, the relative position between the slot that the stiff end of a flat wire set up and the wire casing of inserting this flat wire active end changes, and the distance gets away, and the active end of flat wire moves along the direction of the slot that the wire casing set up to being close to the stiff end of self under the pulling of flat wire self structure, finally breaks away from the wire casing and enters into the slot of the stiff end of inserting other flat wire along the wire casing, and the slot that the active end of this flat wire got into is adjacent or a plurality of slots of interval with the slot that the stiff end of self was located. All flat wires forming the flat wire stator winding synchronously rotate under the drive of the drive device, the process of braiding the rotation of a plurality of flat wires is synchronously carried out, one-step forming is carried out, the degree of automation is high, the processing time is saved, the processing efficiency of the flat wire stator winding forming equipment to the flat wire stator winding is improved, and the yield of products is improved.

According to some embodiments of the application, an included angle exists between the groove depth direction of the wire groove and a straight line passing through the mounting hole.

Through the above technical scheme, along with the rotation of plug wire tool, the atress direction of flat wire's expansion end when being pulled by self stiff end is by the slot that the one end that the plug wire tool was kept away from to the wire casing is towards the slot in the removal that the stiff end of same flat wire set up, the activity that this flat wire itself carried out is the rotation that uses the stiff end of self as the centre of a circle, the route that the expansion end of flat wire moved in the activity process is the pitch arc of directional plug wire tool along the atress direction of flat wire expansion end, there is the contained angle between the groove depth direction of wire casing and the straight line that passes through the mounting hole, the groove depth direction of wire casing extends along the atress direction of flat wire expansion end.

On one hand, the wire slot can fully play a role in guiding the movable end of the flat wire in a path, so that the movable end of the flat wire can smoothly enter the slot corresponding to the position along the wire slot; on the other hand, can avoid going into the extrusion to the outside of flat wire and pull, avoid the enameled wire insulating layer damage of flat wire, prevent that the flat wire from being warp by the extrusion, promote the flat wire stator winding's of flat wire stator winding former production yield that this application provided.

According to some embodiments of the present application, the cross-sectional area of the wire chase increases gradually from the bottom of the wire chase toward the opening of the wire chase along the groove depth direction of the wire chase.

Through the technical scheme, the moving route of the movable end of the flat wire in the moving process is the arc line pointing to the wire inserting jig along the stress direction of the movable end of the flat wire, and the moving route of the movable end of the flat wire is the route combining circular motion and linear motion. In addition, the fixed end of the flat wire also has certain possibility of moving in the slot, so that the moving path of the movable end of the flat wire is not completely regular, the cross-section area of the wire slot is gradually increased from the slot bottom of the wire slot to the opening of the wire slot, the wire slot can exert the original effect of guiding the movable end of the flat wire to move, the excessive limitation of the wire slot on the moving path of the movable end of the flat wire is avoided, the damage of the enameled wire insulating layer of the flat wire or the deformation of the flat wire caused by excessive contact between the slot wall of the wire slot and the movable end of the flat wire is prevented, and the quality of the processed flat wire stator winding can be guaranteed to be better and stable by improving the flat wire stator winding forming equipment.

According to some embodiments of the application, a guide portion is disposed at an opening of the slot, and the guide portion is used for guiding the flat wire to enter the slot.

Through above-mentioned technical scheme, the opening part of slot is provided with the guiding part, and this guiding part refers to the fillet that the dog-ear between the opening part of slot and plug wire tool outer peripheral face becomes. The movable end of the flat wire can be contacted with the opening edge position of the wire slot along with the rotation of the wire inserting jig when the movable end of the flat wire is separated from the wire inserting jig and enters the slot, the edge of the wire slot and the movable end of the flat wire are pushed away from the arc surface in the direction of the wire inserting jig, the movable end of the flat wire can generate an action force pointing to the slot, meanwhile, the guide part of the slot can disperse the action force borne by the movable end of the flat wire, so that the component force which cannot be counteracted can point to the slot, the movable end of the flat wire can slide into the slot under the combined action of the wire inserting opening and the slot guide part, the movable end of the flat wire in the slot at the upstream of the rotation direction of the wire inserting jig is conveyed to the slot, and the slot at the upstream can be an adjacent slot or an interval slot. The flat wire stator winding former that this application provided can let the loose end of flat wire get into the process of slot from the wire casing more smooth stable, reduces the possibility that the flat wire damaged appears in the course of working, promotes the yields of equipment.

According to some embodiments of the present application, the hole wall of the mounting hole is attached to the outer peripheral surface of the wire insertion jig.

Through above-mentioned technical scheme, the pore wall of mounting hole and the outer peripheral face laminating of plug wire tool, the loose end of flat wire can get into in the slot immediately after arriving the opening part of wire casing, has avoided the loose end of flat wire to be blocked the condition between pore wall and the plug wire tool of mounting hole, lets the flat wire can draw in into the process of flat wire stator winding through the rotation jointly and can go on smoothly. The flat wire stator winding former can enable the folding process of the flat wire to be carried out stably, and the flat wire in the equipment can be set to be synchronous as far as possible through guiding the moving path of the movable end of the flat wire completely, so that the damage probability of the flat wire in the processing process is reduced.

According to some embodiments of the present application, the wire insertion jig includes a cylinder and discs disposed at two ends of the cylinder, and each of the outer circumferential surfaces of the discs is provided with the plurality of slots.

Through the technical scheme, the outer peripheral surface of each disc is provided with a plurality of slots, the slots on the two discs of the wire inserting jig are in one-to-one correspondence, and the number of layers of the flat wire stator winding, the types of the flat wires and other factors manufactured according to specific needs are different when the interval angle between two adjacent slots on the wire inserting jig of each flat wire stator winding forming device is different. The stiff end of flat wire need be through passing in the slot that the position on two discs corresponds about the plug wire tool when fixing at plug wire tool, double-deck slot probably is more stable to the fiber effect of the stiff end of flat wire when the flat wire rotates.

The length of the flat wire is longer, when the fixed end of the flat wire is subjected to single-point limiting, the stress point of the fixed end of the flat wire is few, and meanwhile, the acting force direction of the flat wire is uniform, so that the flat wire is easy to deform and distort along with the acting force direction. The utility model provides a flat wire stator winding former adopts double-deck slot structure to divide into two with the atress point of the stiff end of flat wire, lets the effort can even dispersion at the stiff end of flat wire, avoids stress concentration, and the effort direction that the stiff end of flat wire received at each atress point is not necessarily unanimous simultaneously, and the effort can offset a part through flat wire self, effectively protects the flat wire and does not warp, the stability of the product of lifting means.

According to some embodiments of the application, the flat wire stator winding former further comprises a fixed plate, the fixed plate is rotationally arranged on the base, the track plate is in rotary fit with one disc of the wire inserting jig, the other disc of the wire inserting jig is fixedly arranged on the fixed plate, the fixed plate is provided with a plurality of limit grooves, the limit grooves are in one-to-one correspondence with the slots, the wire inserting jig is connected with the output end of the driving device through the fixed plate, and the limit grooves are used for bearing one ends of flat wires passing through the slots corresponding to the positions.

Through above-mentioned technical scheme, the fixed plate is provided with a plurality of spacing grooves, plug wire tool sets up on the fixed plate, and slot and spacing groove one-to-one, the stiff end of flat wire passes the slot and inserts to establish at the spacing inslot, the expansion end and the fixed plate sliding fit of flat wire, the spacing groove is prescribing a limit to the range of motion of flat wire stiff end, effectively avoid the stiff end of flat wire to draw in the shaping in-process from the slot in, guarantee that the flat wire stator winding former that this application provided drive a plurality of flat wires that can be smooth rotate simultaneously and accomplish and draw in the operation, let the flat wire stator winding steady quality of producing.

The track board and the fixed plate are respectively matched with the two discs of the plug wire jig, so that the guiding function of the movable end of the flat wire and the limiting function of the fixed end are separated, and the two are prevented from being influenced mutually.

According to some embodiments of the application, the flat wire stator winding forming device further comprises a plurality of positioning pins, the positioning pins are arranged at intervals around the central axis of the mounting hole in the assembly process, the track plate is correspondingly arranged through the positioning pins and the fixing plate, the mounting hole and the limiting groove are coaxially arranged, and the positioning pins are pulled out after the assembly is completed.

Through the technical scheme, in the assembly process, the plurality of locating pins are arranged at intervals around the central axis of the mounting hole, the track plate and the fixed plate are correspondingly arranged through the positions of the plurality of locating pins, so that the mounting hole and the limiting groove are coaxially arranged, and the plurality of locating pins are pulled down after the assembly is completed. When the wire inserting jig is assembled, the whole assembly of the wire inserting jig and the wire inserting jig can be realized according to the position of one of the mounting holes or the limiting grooves, the assembly difficulty of equipment is simplified, and the popularization of the device is facilitated.

According to a second aspect of the present application, a method for forming a flat wire stator winding is provided, for processing a flat wire into a stator winding, including the steps of:

s0: pre-inserting the fixed ends of a plurality of flat wires into the slots of the plug wire jig;

s1: pre-inserting the movable ends of the flat wires into the wire grooves of the track board;

s2: the wire inserting jig rotates to drive the flat wires to synchronously rotate, and the movable ends of the flat wires move along the wire slots so as to fold the flat wires into stator windings.

Through the technical scheme, S0 is used for pre-inserting the fixed ends of the flat wires into the slots of the plug wire jig, and the fixed ends of the flat wires are fixed into the slots of the plug wire jig. S1, pre-inserting the movable ends of the flat wires into the wire grooves of the track board, wherein the movable ends of the flat wires can move along the wire grooves, and S0 and S1 are generally performed synchronously when the flat wires are pre-inserted. S2 lets the plug wire tool rotate, drive synchronous rotation of a plurality of flat wires, the expansion end of a plurality of flat wires moves along the wire casing, in order to draw in a plurality of flat wires into stator winding, when carrying out flat wire pre-insertion, a plurality of flat wires are inserted around the plug wire tool equidistantly, when the plug wire tool rotates, the relative position of plug wire tool and track pad changes, the expansion end of flat wires moves along the wire casing and can not change in order to guarantee the distance between the expansion end of flat wires and the stiff end, thereby realize synchronous drawing in of flat wires, draw in to finally, a plurality of flat wires mutually splice and finally encircle into a circular flat wire stator winding, the flat wire stator winding shaping method that this application provided is gone on in step with the rotation of a plurality of flat wires and is gone into, one shot forming, save process time, machining efficiency is high, easily popularization.

According to some embodiments of the present application, in S2, the movable ends of the plurality of flat wires are moved along the wire chase into the slot.

Through the technical scheme, the movable ends of the flat wires move into the slots along the wire grooves, the fixed ends of the flat wires face to the inner sides of the flat wire stator windings, the movable ends of the flat wires press other flat wires, and each flat wire can press each other to form the flat wire stator windings with stable structure.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a flat wire stator winding forming apparatus according to an embodiment of the present application;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic diagram of an internal structure of a flat wire stator winding forming apparatus according to an embodiment of the present application;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a schematic structural diagram of a driving device according to an embodiment of the present application;

fig. 6 is a schematic diagram of a plug wire fixture according to an embodiment of the present application.

Icon: 1-a base; 2-plug wire jig; 3-track board; 4-a fixing plate; 5-a driving device; 6-locating pins; 7-fixing the column; 201-a slot; 202, a cylinder; 203-a disc; 301-wire slots.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1 to 5, the flat wire stator winding forming device comprises a base 1, a wire inserting jig 2, a track board 3 and a driving device 5, wherein the flat wire stator winding forming device is a flat wire with a U-shaped structure, and two side edges of the flat wire are respectively a fixed end and a movable end.

Wherein, plug wire tool 2 is cylindric structure, plug wire tool 2 rotates to set up in base 1, plug wire tool 2's outer peripheral face is provided with a plurality of slots 201, slot 201 extends along plug wire tool 2's axial, a plurality of slots 201 set up around plug wire tool 2's central axis interval, slot 201 is used for holding the one end of flat wire, the interval angle between two adjacent slots 201 on the plug wire tool 2 is the same, the one end of flat wire is inserted and is established in slot 201, the one section of flat wire in inserting and locating slot 201 is the stiff end, the stiff end of flat wire extends in slot 201 along plug wire tool 2's axial direction, the stiff end of flat wire can rotate at slot 201.

Wherein, track board 3 sets up in base 1, track board 3 is provided with the mounting hole that corresponds with plug wire tool 2, and plug wire tool 2 rotationally sets up in the mounting hole. The hole wall of the mounting hole is provided with a plurality of wire grooves 301, the wire grooves 301 are long groove structures, one ends of the long groove structures are communicated with the mounting hole, the wire grooves 301 are arranged at intervals around the central axis of the mounting hole, the interval angles between every two adjacent wire grooves 301 on the track board 3 are the same, and the wire grooves 301 correspond to the slots 201 one by one.

The wire casing 301 is used for holding the other end of flat wire, and the other end of flat wire can remove along wire casing 301, and the one end of flat wire in advance inserting in wire casing 301 is the expansion end, and wire casing 301 is used for restricting the travel path of the expansion end of flat wire, lets the folding process of every flat wire all go on along unified route, guarantees that every constitution flat wire shape rule of flat wire stator winding that flat wire stator winding former that this application provided made, reduces the possibility that the flat wire appears distortion, promotes the yields of product.

The driving device 5 is used for driving the wire inserting jig 2 to rotate relatively to the track board 3, the fixed end of the flat wire is clamped in the slot 201, along with the rotation of the wire inserting jig 2, the relative position between the slot 201 arranged at the fixed end of one flat wire and the slot 301 inserted with the movable end of the flat wire changes, the distance becomes far, the movable end of the flat wire moves along the slot 301 towards the direction of the slot 201 arranged near the fixed end of the flat wire under the pulling of the structure of the flat wire, finally, the movable end of the flat wire is separated from the slot 301 along the slot 301 and enters the slot 201 inserted with the fixed end of another flat wire, and the slot 201 into which the movable end of the flat wire enters is adjacent to the slot 201 where the fixed end of the flat wire is positioned or is separated by a plurality of slots 201.

All flat wires forming the flat wire stator winding synchronously rotate under the drive of the driving device 5, the process of braiding the rotation of a plurality of flat wires is synchronously carried out, one-step forming is carried out, the processing time is saved, and the processing efficiency of the flat wire stator winding forming equipment provided by the application to the flat wire stator winding is improved.

In some embodiments, the wire chase 301 may be an elongated slot extending from the track pad 3 toward a direction proximate to the wire insertion jig 2. In other embodiments, the wire chase 301 may also be an arcuate slot.

Optionally, the track board 3 is connected with the output end of the driving device 5, the driving device 5 drives the track board 3 to rotate, and the track board 3 rotates to change the relative position of the track board 3 and the wire inserting jig 2, so that the movable end of the flat wire can move along the wire slot 301.

As shown in fig. 2, an included angle exists between a groove depth direction of the wire groove 301 and a straight line passing through the mounting hole, along with rotation of the wire insertion jig 2, a stress direction when a movable end of the flat wire is pulled by a fixed end of the wire groove 301, the movable end of the flat wire is far away from the wire insertion jig 2, and faces the movable slot 201 arranged at the fixed end of the same flat wire, the movement of the flat wire is performed by using the fixed end of the flat wire as a circle center, a moving route of the movable end of the flat wire in a moving process is an arc line pointing to the wire insertion jig 2 along the stress direction of the movable end of the flat wire, an included angle exists between the groove depth direction of the wire groove 301 and the straight line passing through the mounting hole, and the groove depth direction of the wire groove 301 extends along the stress direction of the movable end of the flat wire.

On the one hand, the wire slot 301 can fully play a role in guiding the movable end of the flat wire in a path, so that the movable end of the flat wire can smoothly enter the slot 201 corresponding to the position along the wire slot 301; on the other hand, can avoid going into the extrusion to the outside of flat wire and pull, avoid the enameled wire insulating layer damage of flat wire, prevent that the flat wire from being warp by the extrusion, promote the flat wire stator winding's of flat wire stator winding former production yield that this application provided.

As shown in fig. 4, the cross-sectional area of the wire slot 301 is gradually increased from the slot bottom of the wire slot 301 to the opening of the wire slot 301, the moving path of the movable end of the flat wire is an arc line pointing to the wire insertion jig 2 along the stress direction of the movable end of the flat wire, the moving path of the movable end of the flat wire is a combined path of circular motion and linear motion, and in addition, a certain moving condition exists in the slot 201 of the fixed end of the flat wire, so that the moving path of the movable end of the flat wire is not completely regular.

The cross-sectional area of the wire slot 301 is gradually increased by the opening of the slot bottom of the wire slot 301, which points to the wire slot 301, so that the wire slot 301 can play the original effect of guiding the movable end of the flat wire to move, the wire slot 301 is prevented from excessively limiting the moving path of the movable end of the flat wire, the movable end of the flat wire can move in the wire slot 301 towards the direction different from the slot depth direction of the wire slot 301, a movable space is reserved for the movable end of the flat wire, the damage of an enameled wire insulating layer of the flat wire or the deformation of the flat wire caused by excessive contact between the slot wall of the wire slot 301 and the movable end of the flat wire is prevented, and the flat wire stator winding forming equipment provided by the application can ensure that the quality of the processed flat wire stator winding is better and stable.

Wherein, the opening of slot 201 is provided with the guiding portion, and this guiding portion refers to the fillet that the dog-ear between the opening of slot 201 and plug wire tool 2 outer peripheral face becomes.

The movable end of the flat wire is contacted with the opening edge position of the wire slot 301 along with the rotation of the wire inserting jig 2 in the process that the movable end of the flat wire is separated from the wire slot 301 and enters the slot 201, the edge of the wire slot 301 and the movable end of the flat wire are pushed by an arc surface deviating from the direction of the wire inserting jig 2, the movable end of the flat wire generates an action force pointing to the slot 201, meanwhile, the guide part of the slot 201 disperses the action force borne by the movable end of the flat wire, so that the component force which cannot be counteracted can point to the slot 201, the movable end of the flat wire slides into the slot 201 under the combined action of the opening of the wire slot 301 and the guide part of the slot 201, the movable end of the flat wire in the slot 201 at the upstream of the rotation direction of the wire inserting jig 2 is sent to the slot 201, and the slot 201 at the upstream can be an adjacent slot 201 or an interval slot 201. The flat wire stator winding former that this application provided can let the loose end of flat wire get into slot 201 from wire casing 301's process more smooth stable, reduces the possibility that the flat wire damaged appears in the course of working, promotes the yields of equipment.

Wherein, the pore wall of mounting hole is laminated with the outer peripheral face of plug wire tool 2.

The movable end of flat wire can get into slot 201 immediately after arriving wire casing 301's opening part, avoided the movable end of flat wire to be blocked the condition between the pore wall of mounting hole and plug wire tool 2, let the flat wire can draw in into flat wire stator winding's process through the rotation jointly and go on smoothly, the flat wire stator winding former that this application provided can let the process of drawing in of flat wire steadily go on, let the rotation of setting and flat wire in the equipment keep synchronous as far as possible through carrying out complete guide to the travel path of flat wire movable end, reduce the damage probability of flat wire in the course of working.

As shown in fig. 6, the wire plugging jig 2 includes a cylinder 202 and discs 203 disposed at two ends of the cylinder 202, the two discs 203 are coaxially disposed with the cylinder 202, a plurality of slots 201 are disposed on an outer circumferential surface of each disc 203, and the slots 201 on the two discs 203 of the wire plugging jig 2 are in one-to-one correspondence.

According to factors such as the number of layers of flat wire stator winding that specifically needs to make, the kind of flat wire, the interval angle between two adjacent slots 201 on every flat wire stator winding former's plug wire tool 2 is different, and the stiff end of flat wire need be through passing in the slot 201 that the position corresponds on two disc 203 about plug wire tool 2 when fixing at plug wire tool 2, and double-deck slot 201 is perhaps when the flat wire rotates to the fibrous effect of the stiff end of flat wire more stable.

Further, the length of the flat wire is longer, when the fixed end of the flat wire is subjected to single-point limiting, the stress point of the fixed end of the flat wire is few, and meanwhile the acting force direction of the flat wire is uniform, so that the flat wire is easy to deform and twist along with the acting force direction. The utility model provides a flat wire stator winding former adopts double-deck slot 201 structure, divides the atress point of the stiff end of flat wire into two, lets the effort can even dispersion at the stiff end of flat wire, avoids stress concentration, and the effort direction that the stiff end of flat wire received at each atress point is not necessarily unanimous simultaneously, and the effort can offset a part through flat wire self, effectively protects the flat wire and does not warp, the stability of the product of lifting means.

Wherein, flat wire stator winding former still includes fixed plate 4, and fixed plate 4 rotates to set up in base 1, and fixed plate 4 is provided with a plurality of spacing grooves, and a plurality of spacing grooves and a plurality of slot 201 one-to-one, plug wire tool 2 are connected with drive arrangement 5's output through fixed plate 4, and plug wire tool 2 and fixed plate 4 are synchronous rotation under drive arrangement 5's drive, and the spacing groove is used for bearing the stiff end of the flat wire of slot 201 that passes the position correspondence.

The length of the movable end of flat wire that equipment processing was used is shorter than the stiff end, and slot 201 is passed to the stiff end of flat wire inserts and establishes in the spacing inslot, and the movable end and the fixed plate 4 sliding fit of flat wire, and the spacing inslot is prescribing a limit to the movable range of flat wire stiff end, effectively avoids the stiff end of flat wire to draw in from slot 201 in the shaping in-process of drawing in, guarantees that the flat wire stator winding former that this application provided can be smooth drive a plurality of flat wires rotate simultaneously and accomplish the operation of drawing in, lets the flat wire stator winding steady quality of producing.

Further, the track board 3 and the fixed board 4 are respectively matched with the two circular discs 203 of the wire inserting jig 2, so that the guiding function of the movable end of the flat wire and the limiting function of the fixed end are separated, and the mutual influence of the two functions is avoided.

Further, the flat wire stator winding forming device further comprises a plurality of positioning pins 6, wherein in the assembling process, the positioning pins 6 are arranged at intervals around the central axis of the mounting hole, and the axial direction of the positioning pins 6 is parallel to the axial direction of the mounting hole.

The track board 3 is provided with a plurality of first positioning holes, the fixed board 4 is provided with a plurality of second positioning holes corresponding to the first positioning holes, each positioning pin 6 is configured to be inserted into one first positioning hole and the corresponding second positioning hole, so that the track board 3 and the fixed board 4 are assembled, and after the assembly is completed, all the positioning pins 6 are pulled out, so that the fixed board 4 can rotate under the drive of the driving device 5.

The relative positions of the track board 3 and the fixed board 4 during assembly are fixed through the positioning pin 6, the positioning pin 6 can realize the whole assembly of the track board 3 and the fixed board according to the position of one of the mounting holes or the limiting grooves during assembly of the plug wire jig 2, the assembly difficulty of the device is simplified, and the popularization of the flat wire stator winding forming device is facilitated.

The flat wire stator winding forming equipment is further provided with a plurality of fixing columns 7, the fixing columns 7 are arranged at intervals around the axis of the mounting hole, and the axial direction of the fixing columns 7 is parallel to the axis direction of the mounting hole.

The base 1 is provided with a plurality of connecting holes, and fixed column 7 one end and track board 3 fixed connection, the fixed column 7 other end set up in the connecting hole to realize track board 3 fixed mounting on base 1.

Wherein, the flat wire stator winding former that this application provided can adjust the angle difference between every two adjacent slots 201 on the plug wire tool 2 and adjust the thickness or the number of piles of the flat wire stator winding that make, however, use the plug wire tool 2 of processing multilayer stator winding can accomplish the stator winding to the individual layer equally or less than the upper limit of the number of piles that plug wire tool 2 can prepare, interval one or more slots 201 can realize processing the stator winding of the upper limit of the number of piles that plug wire tool 2 can prepare less than between the stiff end of adjacent flat wire when inserting the flat wire in advance, specific use is not totally restricted by the slot 201 interval angle of plug wire tool 2, it is nimble changeable.

When the single-layer flat wire stator winding is manufactured by using the wire inserting jig 2 for processing the multi-layer stator winding, the movable end of one flat wire enters the slots 201 which are used as intervals and are not inserted with the flat wires along the wire slots 301 along with the pulling of the wire inserting jig 2.

When the multi-layer flat wire stator winding is processed, a first layer flat wire and a second layer flat wire are placed in the flat wire plug wire jig 2, namely, the flat wire is fully inserted into the slot 201, the rotating mechanism rotates, the movable end of the flat wire can enter the adjacent slot 201 which is arranged at the downstream of the rotating direction or is spaced by a plurality of slots 201 along the wire slot 301, the fixed ends of other flat wires are inserted, so that the flat wires of the first layer and the second layer are mutually clamped, the flat wires of the first layer and the second layer can be folded at one time, the whole stator can be wound and assembled, and the plug wire method is simple in process and can improve the production efficiency while the flat wires are not damaged.

On the other hand, the application also provides a flat wire stator winding forming method, which adopts the flat wire stator winding forming equipment, and comprises the following steps:

s0: the fixed ends of a plurality of flat wires are pre-inserted into the slots 201 of the plug wire jig 2, and the fixed ends of the flat wires are fixed into the slots 201 of the plug wire jig 2.

S1: the movable ends of a plurality of flat wires are pre-inserted into the wire grooves 301 of the track board 3, and the movable ends of the flat wires can move along the wire grooves 301, wherein S0 and S1 are generally performed synchronously when the flat wires are pre-inserted.

S2: let plug wire tool 2 rotate, drive a plurality of flat wires and rotate in step, the active end of a plurality of flat wires moves along wire casing 301 to draw in a plurality of flat wires into stator winding.

When carrying out flat wire pre-insertion, a plurality of flat wires are inserted with the equidistance around plug wire tool 2, when plug wire tool 2 rotates, plug wire tool 2 and track board 3's relative position change, the movable end of flat wire moves in order to guarantee that the distance between movable end and the stiff end of flat wire can not change along wire casing 301, thereby realize the synchronous drawing in of flat wire, draw in to finally, a plurality of flat wires mutually amalgamation is finally encircleed into a circular ring-shaped flat wire stator winding, the flat wire stator winding shaping method that this application provided goes on the process of the rotation of a plurality of flat wires and weave in step, one shot forming saves process time, machining efficiency is high, easily promote.

Further, the movable ends of the flat wires move into the slot 201 along the slot 301, the fixed ends of the flat wires face the inner side of the flat wire stator winding, and the movable ends of the flat wires press other flat wires, so that each flat wire can be mutually pressed to form a flat wire stator winding with stable structure.

It should be noted that, without conflict, features in the embodiments of the present application may be combined with each other.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (8)

1. A flat wire stator winding forming apparatus comprising:

a base;

the plug wire jig is of a cylindrical structure, the plug wire jig is rotatably arranged on the base, a plurality of slots are formed in the outer peripheral surface of the plug wire jig, the slots extend along the axial direction of the plug wire jig, the slots are arranged at intervals around the central axis of the plug wire jig, and the slots are used for accommodating one ends of flat wires;

the track board is arranged on the base, the track board is provided with a mounting hole corresponding to the wire inserting jig, the wire inserting jig is rotatably arranged in the mounting hole, a plurality of wire grooves are formed in the wall of the mounting hole, the wire grooves are arranged at intervals around the central axis of the mounting hole, the wire grooves are in one-to-one correspondence with the slots, and the wire grooves are used for accommodating the other ends of the flat wires;

the driving device is used for driving the plug wire jig to rotate relative to the track board;

an included angle exists between the groove depth direction of the wire groove and a straight line passing through the mounting hole.

2. The flat wire stator winding molding apparatus as claimed in claim 1, wherein a cross-sectional area of the wire slot gradually increases from a bottom of the wire slot toward an opening of the wire slot in a slot depth direction of the wire slot.

3. The flat wire stator winding forming apparatus of claim 1, wherein a guide portion is provided at an opening of the slot, the guide portion being for guiding the flat wire into the slot.

4. The flat wire stator winding molding apparatus of claim 1, wherein a hole wall of the mounting hole is attached to an outer peripheral surface of the wire insertion jig.

5. The flat wire stator winding forming device according to claim 1, wherein the wire insertion jig comprises a cylinder and discs arranged at two ends of the cylinder, and the plurality of slots are formed in the outer peripheral surface of each disc.

6. The flat wire stator winding forming device according to claim 5, further comprising a fixing plate, wherein the fixing plate is rotatably arranged on the base, the track plate is in rotary fit with one disc of the wire inserting jig, the other disc of the wire inserting jig is fixedly arranged on the fixing plate, the fixing plate is provided with a plurality of limiting grooves, the limiting grooves are in one-to-one correspondence with the slots, the wire inserting jig is connected with an output end of the driving device through the fixing plate, and the limiting grooves are used for bearing one end of the flat wire passing through the slot with the corresponding position.

7. The flat wire stator winding forming device according to claim 6, further comprising a plurality of positioning pins, wherein the plurality of positioning pins are arranged at intervals around a central axis of the mounting hole during assembly, the track plate is arranged corresponding to the fixing plate through the plurality of positioning pins, the mounting hole is arranged coaxially with the limiting groove, and the plurality of positioning pins are pulled out after assembly is completed.

8. A flat wire stator winding forming method for processing a flat wire into a stator winding using the flat wire stator winding forming apparatus according to any one of claims 1 to 7, characterized by comprising the steps of:

s0: pre-inserting the fixed ends of a plurality of flat wires into the slots of the plug wire jig;

s1: pre-inserting the movable ends of the flat wires into the wire grooves of the track board;

s2: the wire inserting jig rotates to drive the flat wires to synchronously rotate, the movable ends of the flat wires move along the wire slots, and the movable ends of the flat wires move along the wire slots into the slots so as to fold the flat wires into stator windings.

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