CN114696553A - Winding method and winding machine for long primary linear motor coil - Google Patents

Abstract

The invention relates to the technical field of winding machines, in particular to a winding method of a long primary linear motor coil and a winding machine. The detachable inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group of the die can ensure that the coil is formed by winding a single line at one time, the coil is divided into three rings, namely an inner ring, a middle ring and an outer ring, and can provide larger electromagnetic force compared with a common single-ring coil.

Description

Winding method and winding machine for long primary linear motor coil

Technical Field

The invention relates to the technical field of winding machines, in particular to a winding method of a long primary linear motor coil and a winding machine.

Background

The linear motor has the advantages of simple structure, convenient maintenance, high reliability and the like, and is widely applied to the aspects of spaceflight, industrial production and traffic. Based on the application of the linear motor in the scene of instantaneous high power, the invention is limited by the structural form of the coil because the motor coils at home and abroad mostly adopt a winding mode of multilayer single-turn or single-layer single-turn at present, and is difficult to put into practice in the use of instantaneous high power. A multi-turn, concentric coil has thus been proposed that can increase mover kinetic energy by increasing magnetic flux. However, because the manufacturing process of the multi-turn concentric coil is complex, welding treatment is required for complete internal bridging, the stability of the coil is poor, and the coil is basically manufactured manually at present, and the labor cost is too high, so that most motor products cannot meet the instantaneous high-power characteristic in the aerospace field.

Disclosure of Invention

In order to solve the technical problem, the invention provides a winding method and a winding machine for a long primary linear motor coil formed by continuously winding single-layer copper wires.

In order to achieve the purpose, the invention provides the following technical scheme: the winding method comprises the following steps:

s1, winding of the inner coil group: firstly, an inner ring embedded line group in a mould is installed on a winding machine, then a flat copper wire is embedded into the inner ring embedded line group, the starting end of the flat copper wire is fixed, finally the winding machine is started to rotate, and the flat copper wire is driven to bend for a plurality of circles by taking the narrow side end face as a bending face under the action of the inner ring embedded line group to form an inner layer coil group;

s2, winding the middle layer coil group: after the machine is stopped, the middle coil embedded line group in the die is installed on a winding machine, then the flat copper wire is embedded into the middle coil embedded line group, finally the winding machine is started again to rotate, the flat copper wire is continuously driven to be bent for a plurality of circles by taking the narrow side end face as a bending face under the action of the middle coil embedded line group, and a middle coil group is formed on the outer periphery side of the inner coil group;

s3, winding of the outer-layer coil group: after the machine is stopped, the outer ring embedded line group in the die is installed on a winding machine, then the flat copper wire is embedded into the outer ring embedded line group, finally the winding machine is started again to rotate, the flat copper wire is continuously driven to be bent for a plurality of circles by taking the end surface of the narrow side as a bending surface under the action of the outer ring embedded line group, and an outer layer coil group is formed on the outer periphery side of the middle layer coil group;

and S4, stopping the machine and demoulding to obtain the three-turn continuous winding coil.

Furthermore, the plurality of circles of flat copper wires of the inner coil group, the middle coil group and the outer coil group respectively have a structure in which the end faces of the wide sides are overlapped front and back, and the centers of the inner coil group, the middle coil group and the outer coil group are located on the same straight line.

Further, the winding machine comprises a pay-off mechanism, a wire arranging mechanism and a winding mechanism; the winding mechanism comprises a winding rack, a winding speed reducer is arranged on the winding rack, a bottom plate is arranged on an output shaft of the winding speed reducer, and a die is detachably connected to the bottom plate; the die comprises an inner ring embedded line group, a middle ring embedded line group and an outer ring embedded line group, wherein the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group are sequentially arranged along the direction departing from the bottom plate; the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group respectively comprise a plurality of embedded line blocks, a plurality of embedded line grooves used for embedding flat copper wires are arranged on the outer peripheral sides of the embedded line blocks, the plurality of embedded line grooves on each embedded line block are arranged in an equidistant and parallel mode, and the size of each embedded line groove is not smaller than that of each flat copper wire.

Furthermore, the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group respectively comprise four embedded line blocks; the four coil inserting blocks of the inner coil inserting group, the middle coil inserting group and the outer coil inserting group can be distributed at four corners of the bottom plate in a one-to-one correspondence manner, so that each corner comprises a coil inserting block of one inner coil inserting group, a coil inserting block of one middle coil inserting group and a coil inserting block of one outer coil inserting group which are sequentially arranged; the flat copper wire can be wound and formed along a rectangular structure formed by the outer sides of the four wire embedding blocks of the inner ring wire embedding group, the middle ring wire embedding group or the outer ring wire embedding group, and the rectangular structures formed by the outer sides of the four wire embedding blocks of the inner ring wire embedding group, the middle ring wire embedding group or the outer ring wire embedding group are concentrically arranged.

Furthermore, the outer side surfaces of each wire embedding block, which are used for being in contact with the flat copper wire, are a first contact end surface and a second contact end surface, the first contact end surface is a horizontally arranged outer side surface, and the second contact end surface is a vertically arranged outer side surface; the plurality of wire embedding grooves are formed in the first contact end face and the second contact end face; a plurality of rule grooves that lie in on the first contact terminal surface on every rule piece are the setting of being parallel and level mutually, are located a plurality of rule grooves on the second contact terminal surface are equidistance in proper order and arrange in the staggered form mutually, make a plurality of rule grooves on the second contact terminal surface are inwards inclined gradually and are arranged.

Furthermore, the four coil inserting blocks of the middle coil inserting group are detachably connected to the bottom plate through middle coil cushion blocks, and one side, opposite to the bottom plate, of one middle coil cushion block is provided with a through hole for a flat copper wire to pass through; and three of the coil inserting blocks of the outer ring coil inserting group are detachably connected to the middle ring cushion block through the outer ring cushion block, so that the inner ring coil inserting group, the middle ring coil inserting group and the outer ring coil inserting group are positioned on different planes.

Furthermore, the coil inserting blocks of the inner ring coil inserting group are of a rectangular structure, and the coil inserting blocks of the middle ring coil inserting group and the outer ring coil inserting group are of an L-shaped structure; each wire embedding block consists of a plurality of large gaskets and small gaskets which are sequentially arranged from front to back, so that each wire embedding block is arranged in an interval manner of the large gaskets, the small gaskets and the large gaskets; distance differences exist between the first contact end surfaces of the large gaskets and the small gaskets and between the second contact end surfaces of the large gaskets and the small gaskets, so that wire embedding grooves used for embedding flat copper wires can be formed at the first contact end surfaces and the second contact end surfaces between the adjacent large gaskets and the small gaskets; the first contact end surfaces of the large gaskets on each wire embedding block are arranged in parallel, and the first contact end surfaces of the small gaskets are also in parallel; every the second contact terminal surface of a plurality of little gaskets on the rule piece is the equidistance in proper order and sets up by mistake for be located rule's in proper order staggered arrangement is presented to rule groove on the second contact terminal surface.

Furthermore, one side of the inner ring embedded line group, which is far away from the bottom plate, is also detachably connected with a middle sleeve pressing plate in a rectangular structure through a fixing bolt, and one side, opposite to the middle sleeve pressing plate, of four embedded line blocks of the middle ring embedded line group can be just clamped on the outer side of the middle sleeve pressing plate; and one side of the outer ring embedded line group, which is far away from the bottom plate, is also detachably connected with a top pressure plate through a fixing bolt.

Furthermore, the pay-off mechanism comprises a pay-off rack, a magnetic powder brake is arranged on the pay-off rack, a pay-off reel is arranged on an output shaft of the magnetic powder brake, and the wire prevention reel is used for winding flat copper wires; a clamping disc is fixedly connected to the output shaft of the magnetic powder brake below the pay-off disc, and the bottom surface of the pay-off disc tightly abuts against the top surface of the clamping disc; the top end of the output shaft of the magnetic powder brake penetrates through the pay-off reel and is coaxially and threadedly connected with a fastening tip cone, and the bottom surface of the fastening tip cone tightly abuts against the top surface of the pay-off reel.

The winding machine further comprises a straightening mechanism, wherein the straightening mechanism comprises a straightening frame and two straightening assemblies which are arranged on the straightening frame and have the same structure, one of the straightening assemblies is horizontally arranged, and the other straightening assembly is vertically arranged; the straightening assembly comprises a fixed disc, two rows of straightening wheels are rotatably arranged on the fixed disc, the two rows of straightening wheels are distributed in a left-right staggered manner, and the distance between the two rows of straightening wheels is adjustable; every it all sets up annular straight groove of getting to get all to go out the side of the straight wheel, is located the level setting get the axial length of getting the straight groove of straight wheel on the straight subassembly and equal the width of the wide side terminal surface of flat type copper line, be located vertical setting get the axial length of getting the straight groove on the straight wheel on the straight subassembly and equal the width of the narrow side terminal surface of flat type copper line.

Compared with the prior art, the invention has the following beneficial effects:

1. the coil wound by the method is a multi-turn concentric single-layer coil, has a structure different from that of the conventional induction long primary linear motor coil, can be concentrically wound, is not welded by a flat copper wire, and can well ensure the stability of the coil.

2. The detachable inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group of the die can ensure that the coil is formed by winding a single line at one time, the coil is divided into three rings, namely, an inner ring, a middle ring and an outer ring, each ring has 11 layers, and compared with a common single-ring coil, the detachable inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group can provide larger electromagnetic force.

3. The design of detachable mould can realize fast demoulding.

Drawings

Fig. 1 is a schematic view of the overall structure of a winding machine;

FIG. 2 is a schematic structural diagram of the mold in front view after the middle sleeve pressing plate and the top pressing plate are removed;

FIG. 3 is a schematic axial view of the mold with the intermediate sleeve pressing plate and the top pressing plate removed;

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

FIG. 5 is a schematic view of the axial structure of the mold with the top press plate removed;

FIG. 6 is an enlarged view of the structure of FIG. 3 at D;

FIG. 7 is an enlarged view of the structure at C in FIG. 5;

FIG. 8 is an enlarged view of the structure at A in FIG. 1;

FIG. 9 is a schematic view of an axial structure of a wire pressing block;

fig. 10 is a schematic structural view of a three-turn continuous winding coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention provides a winding method of a long primary linear motor coil, which is mainly used for winding a flat copper wire into a coil group with a regular shape, wherein the flat copper wire is provided with a wide side end face and a narrow side end face. And the other similar winding methods can not complete the coil to simultaneously satisfy a plurality of turns, the concentric winding is realized, a copper wire is not welded, and cutting or butt joint is not needed, and the winding method mainly comprises the following steps:

1. the inner ring embedded line group 405 in the winding mold is fixed on a winding machine, then the flat copper wire is embedded into the inner ring embedded line group 405 and the starting end of the flat copper wire is fixed, the winding machine is started to wind, and the flat copper wire is bent for a plurality of circles by taking the narrow side end face of the flat copper wire as a bending face under the action of the inner ring embedded line group 405 to form an inner layer coil group 501.

2. After the machine is stopped, the middle coil embedded line group is installed on the periphery of the inner coil embedded line group, then the flat copper wire is embedded into the middle coil embedded line group, the winding machine is started again to rotate, the flat copper wire is continuously bent for a plurality of circles by taking the narrow side end face of the flat copper wire as a bending face under the action of the middle coil embedded line group, and the middle coil group 502 is formed on the outer periphery side of the inner coil group 501.

3. And after the machine is stopped, the outer ring embedded line group is arranged on the periphery of the middle ring embedded line group, then the flat copper wire is embedded into the outer ring embedded line group, the winding machine is started again to rotate, the narrow side face of the flat copper wire is continuously used as a bending face under the action of the outer ring embedded line group, then the flat copper wire is bent for a plurality of circles, and an outer layer coil group 503 is formed on the outer periphery side of the middle layer coil group 502.

4. And demolding after winding to obtain the three-coil continuous winding type coil wound by one flat copper wire.

In a preferred embodiment, the number of turns of the inner coil set 501, the middle coil set 502 and the outer coil set 503 is 11.

The winding machine for realizing the winding method of the long primary linear motor coil mainly comprises a paying-off mechanism 1, a winding mechanism 3 and a winding mechanism 4 which are sequentially arranged, wherein the paying-off mechanism 1 is used for placing a coil wound with a flat copper wire, the winding mechanism 4 is used for winding the flat copper wire into a coil with a specific shape, and the winding mechanism 3 is used for matching the winding mechanism 4 to adjust the position of the flat copper wire so as to wind the coil into the coil with the specific shape.

The winding mechanism 4 comprises a winding rack 401, a winding speed reducer 402 is fixedly arranged on the winding rack 401, an output shaft of the winding speed reducer 402 is connected with a four-jaw chuck 404 through a connecting flange, a die 401 is fixedly arranged on the end face of the four-jaw chuck 403, and the flat copper wire conveyed by the winding mechanism 3 is wound and molded under the action of the die 401.

In the present invention, the mold 401 includes three groups of embedded wire groups, which are an inner embedded wire group 405, an intermediate embedded wire group 406, and an outer embedded wire group 407 from the direction of the bottom plate 403 to the direction departing from the bottom plate 403, and the inner embedded wire group 405, the intermediate embedded wire group 406, and the outer embedded wire group 407 are used to wind a multi-turn coil group including a plurality of layers of coils. The inner circle embedded line group 405, the middle circle embedded line group 406 and the outer circle embedded line group 407 can realize the change of the coil pole pitch in the XY direction. The inner ring embedded line group 405 is used for winding the inner coil group 501, the middle ring embedded line group 406 is used for winding the middle coil group 502, the outer ring embedded line group 407 is used for winding the outer coil group 503, and the inner ring embedded line group 405, the middle ring embedded line group 406 and the outer ring embedded line group 407 can be detachably assembled on the bottom plate 403 to cooperatively wind three-turn coil groups.

In the present invention, each wire embedding group is composed of four wire embedding blocks, and the four wire embedding blocks 408 of the inner ring wire embedding group 405, the middle ring wire embedding group 406 and the outer ring front wire embedding group 407 can be distributed at four corners of the bottom plate 403 in a one-to-one correspondence manner, so that each corner includes the wire embedding block 408 of one inner ring wire embedding group 405, the wire embedding block 408 of one middle ring wire embedding group 406 and the wire embedding block 408 of one outer ring wire embedding group 407 which are sequentially arranged. When the rectangular copper wire is used, the rectangular copper wire is sequentially wound into a regular shape along a rectangular structure formed by the outer sides of the four wire inserting blocks 408 of each wire inserting group (in the invention, the position close to the center of the bottom plate 403 is the inner side of the wire inserting block 408, and the position far away from the center of the bottom plate 403 is the outer side of the wire inserting block 408), the inner coil group 501 is wound along the inner coil wire inserting group 405, the middle coil group 502 is wound along the middle coil wire inserting group 406, the outer coil group 503 is wound along the outer coil wire inserting group 407, and the three groups of wire inserting groups are matched with each other to form a three-coil continuous winding type coil with a regular shape. In a preferred embodiment, the transition among the inner coil set 501, the middle coil set 502 and the outer coil set 503 is a zigzag routing manner.

A plurality of equidistant and parallel wire embedding grooves 409 are formed in each wire embedding block 408, so that flat copper wires can be embedded into the wire embedding grooves 409. The planes of the multiple wire embedding slots 409 are all parallel to the plane of the bottom plate 403 and are sequentially arranged towards one side away from the bottom plate 403, so that the multiple circles of flat copper wires of the inner coil group 501, the middle coil group 502 and the outer coil group 503 can respectively present a structure in which the end surfaces of the wide sides are overlapped front and back. In the present invention, for convenience of understanding, two adjacent outer side surfaces of each wire insertion block 408 for contacting with the flat copper wire are a first contact end surface 410 and a second contact end surface 411, respectively, and a wire insertion groove 409 is opened on the first contact end surface 410 and the second contact end surface 411 and is formed by recessing the first contact end surface 410 and the second contact end surface 411. As shown in fig. 2 and 3, the first contact end face 410 is an end face that is in a horizontal direction and contacts the flat copper wire, and the second contact end face 411 is an end face that is in a vertical direction and contacts the flat copper wire.

The plurality of inserting grooves 409 on the first contact end surface 410 on each inserting block 408 are arranged in parallel, and the plurality of inserting grooves 409 on the second contact end surface 411 are arranged in an equidistant staggered manner in sequence, so that the inserting grooves 409 on the second contact end surface 411 are gradually and obliquely arranged inwards. Therefore, two opposite side edges in the wound coil group are arranged in a gradually inclined mode, so that after the coil group is bent in the subsequent process, different layers of coils in each coil group can be aligned and arranged.

The bottom plate 404 is also detachably connected with a wire pressing block 416, and the wire pressing block 416 is used for pressing the starting end of the flat copper wire when the inner-layer coil assembly 501 is wound, so that the demolding phenomenon of the flat copper wire is prevented when the coil is wound. During winding, the start end of the flat copper wire is fixedly pressed between the wire pressing block 416 and the bottom plate 404, the rear end of the start end is embedded into the wire embedding groove 409 of the inner ring embedded wire group 405, then the winding mechanism 4 can be started, and the flat copper wire can be wound and formed along with the inner ring embedded wire group 405. Preferably, the wire pressing block 416 is connected to a surface of the base plate 404 facing away from the die, and when the wire pressing block 416 is fixed, the starting end of the flat copper wire is wound to the back side of the base plate 404, so that the wire pressing block 416 is prevented from obstructing winding of the flat copper wire. The both sides of wire clip 416 are equipped with bolt hole 417 so that be connected wire clip 416 through the bolt with bottom plate 404, indent in one side that wire clip 416 is relative with bottom plate 404 and form wire clip 418, and when fixed band copper line, the band copper line can be held in wire clip 418 department, and the degree of depth of wire clip 418 is not more than the thickness of band copper line to can compress tightly the band copper line.

The coil blocks 408 of the middle coil group 406 are detachably connected to the outer side of the inner coil group 405, so that the size of a rectangular structure formed by the four coil blocks 408 of the middle coil group 406 is larger than that of a rectangular structure formed by the four coil blocks 408 of the inner coil front group 405; the coil inserting blocks 408 of the outer ring coil inserting group 407 are detachably connected to the outer side of the middle ring coil inserting group 406, so that the size of the rectangular structure formed by the four coil inserting blocks 408 of the outer ring coil inserting group 407 is larger than that of the rectangular structure formed by the four coil inserting blocks 408 of the middle ring coil inserting group 406, and the size of the rectangular structure formed by winding the inner coil group 501, the middle coil group 502 and the outer coil group 503 can be sequentially increased and concentrically arranged.

The coil inserting blocks 408 of the middle coil inserting group 406 are connected to the bottom plate 404 through the middle coil cushion block 412, and the coil inserting blocks 408 of the middle coil inserting group 405 are detachably connected with the bottom plate 404; the coil inserting block 408 of the outer ring coil inserting group 406 is connected to the middle ring cushion block 412 through the outer ring cushion block 413, and the coil inserting block 408 of the outer ring coil inserting group 407 is detachably connected with the middle ring cushion block 412, so that the inner ring coil inserting group 405, the middle ring coil inserting group 406 and the outer ring coil inserting group 407 are located on different planes, and coil groups of an inner ring, a middle ring and an outer ring can be better distinguished. As another alternative, the coil blocks 408 of the middle coil group 406 are connected to the bottom plate 404 by the middle coil spacer 412, the coil blocks 408 of the outer coil group 407 are connected to the bottom plate 404 by the outer coil spacer 413, and the thickness of the middle coil spacer 412 is smaller than that of the outer coil spacer 413.

A receiving groove 4121 for the flat copper wire to pass through is formed at one side of one of the middle ring cushion blocks 412 opposite to the bottom plate 404, so that the flat copper wire starting section wound at the starting end to the back of the bottom plate 404 can be received by the receiving groove 4121 of the middle ring cushion block 412, so as to prevent the flat copper wire from obstructing the installation of the middle ring cushion block 412.

The outer ring cushion blocks 413 are three groups, so that the outer ring cushion block 413 is not arranged at the bottom of the coil inserting block 408 of one outer ring coil inserting group 407, and after the middle-layer coil group 502 is wound, the flat copper wire can smoothly transit from the position of the coil inserting block 408 without the outer ring cushion block 413 to the position of the outer ring coil inserting group 407 for continuous winding.

As a preferred embodiment, the outer ring spacer 413 is not disposed at the middle ring spacer 412 provided with the receiving groove 4121 so that the number of winding turns of the inner ring, the outer ring and the middle ring can correspond.

In the invention, the coil blocks 408 of the middle coil embedded group 406 and the outer coil embedded group 407 are both L-shaped structures, and the coil blocks 408 of the inner coil embedded group 405 are rectangular structures, so that the coil blocks 408 of the middle coil embedded group 406 can be conveniently assembled outside the coil blocks 408 of the inner coil embedded group 405, and the coil blocks 408 of the outer coil embedded group 407 can be conveniently assembled outside the coil blocks 408 of the middle coil embedded group 406.

In this embodiment, each slug 408 is made up of a plurality of large pads 4081 and a plurality of small pads 4082. A plurality of big gasket 4081 and little gasket 4082 are adjacent setting around in proper order, and the preceding, the rear end face of big gasket 4081 and little gasket 4082 meets fixedly for every rule piece 408 all presents the range of big gasket 4081, little gasket 4082, big gasket 4081 spaced type, is convenient for change big gasket 4081 and little gasket 4082 and also is convenient for adjust the quantity of rule groove 409.

Distance differences exist between the first contact end surface 410 of each large pad 4081 and each small pad 4082 and between the second contact end surfaces 411 of the large pad 4081 and each small pad 4082, so that the first contact end surface 410 and the second contact end surface 411 between the adjacent large pad 4081 and each small pad 4082 can form wire embedding grooves 409 for embedding flat copper wires, the number of the wire embedding grooves 409 on each wire embedding block 408 is equal to that of the small pads 4082, and the number of the wire embedding grooves 409 on each wire embedding block 408 is 11 in the invention. The first contact end surfaces 410 of the large gaskets 4081 on each wire embedding block 408 are arranged in parallel, and the first contact end surfaces 410 of the small gaskets 4082 are also arranged in parallel; the second contact end surfaces 411 of the small pads 4082 on each wire insertion block 408 are sequentially arranged in an equidistant staggered manner, so that the wire insertion grooves 409 on the second contact end surfaces 411 are regularly and sequentially arranged in a staggered manner.

The side of the inner coil embedded line group 405 far from the bottom plate 404 is also detachably connected with a middle sleeve pressing plate 414 in a rectangular structure through a fixing bolt, and the four embedded line blocks 408 of the middle coil embedded line group 406 are matched with the shape of the opposite side of the middle sleeve pressing plate 414 so as to be just clamped at the outer side of the middle sleeve pressing plate 414, so that when a flat copper wire is bent and wound along the middle coil embedded line group 406, the anti-extrusion strength of the embedded line blocks 408 is improved, and the embedded line blocks 408 are prevented from being displaced and deviated due to the winding and extrusion of the flat copper wire. A top pressing plate 415 is detachably connected to one side of the outer ring embedded line group 407, which is away from the bottom plate 404, through a fixing bolt, and the top pressing plate 415 can improve the anti-extrusion strength of the outer ring embedded line group 407 and prevent the outer ring embedded line group 407 from displacing.

Fillet processing is all adopted to the corner between first contact terminal surface 410 and the second contact terminal surface 411 of big gasket 4081 and gasket 4082 for flat copper line is changeed and is buckled, and the structure is smooth and easy.

The paying-off mechanism 1 comprises a paying-off rack 101, a magnetic powder brake 102 is mounted on the paying-off rack 101, an output shaft of the magnetic powder brake 102 is connected with a paying-off reel 103 with an I-shaped structure, the paying-off reel 103 is used for winding flat copper wires, and the paying-off reel 103 can be driven to rotate through the magnetic powder brake 102 so as to complete a paying-off process. Paying out machine constructs 1 still includes a tension sensor (not shown in the figure) that is used for detecting the tensile of wire-defense dish 103, and tension sensor and the equal electric connection of magnetic powder brake 102 are on the controller (not shown in the figure) to in time adjust the unwrapping wire process, make unwrapping wire tension more stable, reliable. The top end of the output shaft of the magnetic powder brake 102 penetrates out of the pay-off reel 103 and is coaxially and threadedly connected with a fastening tip cone 104, and the bottom surface of the fastening tip cone 104 tightly abuts against the top surface of the pay-off reel 103, so that the pay-off reel 103 is fastened through the fastening tip cone 104 and the clamping disc. The flat copper wire is paid out from the pay-off reel 104 and sequentially passes through the straightening mechanism 2 and the wire arranging mechanism 3 to reach the winding mechanism 4 for bending and forming.

The wire arranging mechanism 3 adopts a polished rod wire arranging device 301, the polished rod wire arranging device 301 adopts the prior art, and the invention is not specifically described. And the polished rod wire arranging device 301 is used for driving the flat copper wire to move 4mm when the wire winding mechanism 4 winds a circle of coil so as to enter the next wire embedding groove 409 to realize automatic winding. The polished rod traverse 301 is drivingly connected to an output shaft of a winding speed reducer 402 via a pulley 302 and a belt 303, so that the polished rod traverse 301 is driven by the winding speed reducer 402.

The second embodiment:

in this embodiment, still be equipped with one between paying out machine structure 2 and winding displacement mechanism 3 and get straight mechanism 2, get straight mechanism 2 and be used for correcting the flat copper line and get straight, get straight mechanism 2 and include one and get straight frame 201 and locate and get the straight subassembly of getting that two structures on the straight frame 201 are the same, two planes that get the straight subassembly place are perpendicular setting, one is the level promptly and places, one is vertical the placing. The straightening component comprises a fixed disc 202, a plurality of straightening wheels 203 are arranged on the end face of the fixed disc 202, and the straightening wheels 203 are rotatably connected to the fixed disc 202 through rotating shafts. The straightening wheels 203 are divided into an upper row and a lower row, the straightening wheels 203 in the upper row and the lower row are a plurality of straightening wheels 203, the straightening wheels 203 on the upper side and the lower side are distributed in a left-right staggered manner, the central points of the straightening wheels 203 in the same row are all located on the same horizontal line, a straightening track for allowing flat copper wires to pass through and performing rolling straightening treatment is formed between the straightening wheels 203 in the upper row and the lower row, and the straightening tracks of the two straightening assemblies are located on the same horizontal line. The circumferential side surface of each straightening wheel 203 is provided with an annular straightening groove 204, and on a horizontally arranged straightening component, the axial length of the straightening groove 203 of each straightening wheel 203 is equal to the width of the wide side end surface of the flat copper wire, so that two relatively wide surfaces of the flat copper wire can be straightened by rolling; on the other is the subassembly of straightening of vertical setting, the axial length of the groove 204 of straightening on the wheel 203 of straightening equals the width of the narrow side terminal surface of flat type copper line to do the roll straight processing to two narrower narrow faces relatively of flat type copper line. The flat copper wire after being straightened enters the wire arranging mechanism 3 and is wound and formed by matching with the wire winding mechanism 4.

The distance between the two rows of straightening wheels 203 of the straightening assembly is adjustable so as to be matched with flat copper wires with different specifications. An adjusting screw 205 is rotatably connected to the rotating shaft of any row of straightening wheels 203, a rectangular adjusting groove 206 is formed in the position, corresponding to each straightening wheel 203, of the fixed disc 202, and the adjusting groove 206 is used for accommodating the rotating shaft of each straightening wheel 203 to move up and down. The lower side of the adjusting screw 205 is located in the adjusting groove 206, the direction of the adjusting screw 205 is perpendicular to the direction of the rotating shaft, the top end of the adjusting screw 205 penetrates through the fixing base 202, and the upper side of the adjusting screw 205 is in threaded connection with the fixing disc 202. When the distance between the upper and lower straight wheels 203 is required to be adjusted, the adjusting screw 205 is rotated to drive the rotating shaft to drive the straight wheels 203 to move up and down, so that the distance between the upper and lower straight wheels 203 can be adjusted as required, and the device is simple and convenient.

The third embodiment:

the difference between the present embodiment and the first embodiment is that the wire insertion block 408 in the present embodiment is an integrally formed structure, and the wire insertion grooves 409 on the first contact end surface 410 and the second contact end surface 411 are formed by recessing the wire insertion block 408.

The fourth embodiment:

the difference between this embodiment and the first embodiment is that in this embodiment, the inner ring embedded line group 405, the middle ring embedded line group 406, and the outer ring embedded line group 408 are respectively composed of one embedded line block 408, the embedded line block 408 of the inner ring embedded line group 405 is a rectangular structure, the embedded line blocks of the middle ring embedded line group 406 and the outer ring embedded line group 407 are both frame-shaped structures with hollow centers, and the embedded line groove 409 is arranged around the outer side surface of the embedded line block 408.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A winding method of a long primary linear motor coil is used for winding a flat copper wire into a coil, and is characterized by comprising the following steps:

s1, winding of the inner coil group: firstly, an inner ring embedded line group in a mould is installed on a winding machine, then a flat copper wire is embedded into the inner ring embedded line group, the starting end of the flat copper wire is fixed, finally the winding machine is started to rotate, and the flat copper wire is driven to bend for a plurality of circles by taking the narrow side end face as a bending face under the action of the inner ring embedded line group to form an inner layer coil group;

s2, winding the middle layer coil group: after the machine is stopped, the middle coil embedded line group in the die is installed on a winding machine, then the flat copper wire is embedded into the middle coil embedded line group, finally the winding machine is started again to rotate, the flat copper wire is continuously driven to be bent for a plurality of circles by taking the narrow side end face as a bending face under the action of the middle coil embedded line group, and a middle coil group is formed on the outer periphery side of the inner coil group;

s3, winding of the outer-layer coil group: after the machine is stopped, the outer ring embedded line group in the die is installed on a winding machine, then the flat copper wire is embedded into the outer ring embedded line group, finally the winding machine is started again to rotate, the flat copper wire is continuously driven to be bent for a plurality of circles by taking the end surface of the narrow side as a bending surface under the action of the outer ring embedded line group, and an outer layer coil group is formed on the outer periphery side of the middle layer coil group;

and S4, stopping the machine and demoulding to obtain the three-turn continuously wound coil.

2. The method of winding a long primary linear motor coil according to claim 1, wherein: the inner coil group, the middle coil group and the outer coil group are respectively in a structure that the front end face and the rear end face of the inner coil group are overlapped, and the central points of the inner coil group, the middle coil group and the outer coil group are located on the same straight line.

3. A winding machine for realizing a winding method of a long primary linear motor coil is characterized in that: the wire winding machine comprises a wire unwinding mechanism, a wire arranging mechanism and a wire winding mechanism; the winding mechanism comprises a winding rack, a winding speed reducer is arranged on the winding rack, a four-jaw chuck is arranged on an output shaft of the winding speed reducer, a bottom plate is arranged on the four-jaw chuck, and a die is detachably connected to the bottom plate; the die comprises an inner ring embedded line group, a middle ring embedded line group and an outer ring embedded line group, wherein the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group are sequentially arranged along the direction departing from the bottom plate; the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group respectively comprise a plurality of embedded line blocks, a plurality of embedded line grooves used for embedding flat copper wires are arranged on the outer peripheral sides of the embedded line blocks, the plurality of embedded line grooves on each embedded line block are arranged in an equidistant and parallel mode, and the size of each embedded line groove is not smaller than that of each flat copper wire.

4. A winding machine according to claim 3, characterized in that: the inner ring embedded line group, the middle ring embedded line group and the outer ring embedded line group respectively comprise four embedded line blocks; the four coil inserting blocks of the inner coil inserting group, the middle coil inserting group and the outer coil inserting group can be distributed at four corners of the bottom plate in a one-to-one correspondence manner, so that each corner comprises a coil inserting block of one inner coil inserting group, a coil inserting block of one middle coil inserting group and a coil inserting block of one outer coil inserting group which are sequentially arranged; the flat copper wire can be wound and formed along a rectangular structure formed by the outer sides of the four wire embedding blocks of the inner ring wire embedding group, the middle ring wire embedding group or the outer ring wire embedding group, and the rectangular structures formed by the outer sides of the four wire embedding blocks of the inner ring wire embedding group, the middle ring wire embedding group or the outer ring wire embedding group are concentrically arranged.

5. The winding machine according to claim 4, wherein: the outer side surfaces of each wire embedding block, which are used for being in contact with the flat copper wire, are a first contact end surface and a second contact end surface, the first contact end surface is a horizontally arranged outer side surface, and the second contact end surface is a vertically arranged outer side surface; the plurality of wire embedding grooves are formed in the first contact end face and the second contact end face; a plurality of rule grooves that lie in on the first contact terminal surface on every rule piece are the setting of being parallel and level mutually, are located a plurality of rule grooves on the second contact terminal surface are the equidistance in proper order and arrange in the wrong formula of looks, make a plurality of rule grooves on the second contact terminal surface are inwards inclined gradually and are arranged.

6. The winding machine according to claim 4 or 5, characterized in that: the four coil inserting blocks of the middle coil inserting group are detachably connected to the bottom plate through middle coil cushion blocks, and one side, opposite to the bottom plate, of one middle coil cushion block is provided with a through hole for a flat copper wire to pass through; and three of the coil inserting blocks of the outer ring coil inserting group are detachably connected to the middle ring cushion block through the outer ring cushion block, so that the inner ring coil inserting group, the middle ring coil inserting group and the outer ring coil inserting group are positioned on different planes.

7. The winding machine according to claim 4, wherein: the coil inserting blocks of the inner ring coil inserting group are of rectangular structures, and the coil inserting blocks of the middle ring coil inserting group and the outer ring coil inserting group are of L-shaped structures; each wire embedding block consists of a plurality of large gaskets and small gaskets which are sequentially arranged from front to back, so that each wire embedding block is arranged in an interval manner of the large gaskets, the small gaskets and the large gaskets; distance differences exist between the first contact end surfaces of the large gaskets and the small gaskets and between the second contact end surfaces of the large gaskets and the small gaskets, so that wire embedding grooves used for embedding flat copper wires can be formed at the first contact end surfaces and the second contact end surfaces between the adjacent large gaskets and the small gaskets; the first contact end surfaces of the large gaskets on each wire embedding block are arranged in parallel, and the first contact end surfaces of the small gaskets are also in parallel; every the second contact terminal surface of a plurality of little gaskets on the rule piece is the equidistance in proper order and sets up by mistake for be located rule's dislocation arrangement in proper order is presented to rule groove on the second contact terminal surface.

8. The winding machine according to claim 7, wherein: one side of the inner ring embedded line group, which is far away from the bottom plate, is also detachably connected with a middle sleeve pressing plate in a rectangular structure through a fixing bolt, and one side of the four embedded line blocks of the middle ring embedded line group, which is opposite to the middle sleeve pressing plate, can be just clamped on the outer side of the middle sleeve pressing plate; and one side of the outer ring embedded line group, which is far away from the bottom plate, is also detachably connected with a top pressure plate through a fixing bolt.

9. A winding machine according to claim 3, characterized in that: the paying-off mechanism comprises a paying-off rack, a magnetic powder brake is arranged on the paying-off rack, a paying-off disc is arranged on an output shaft of the magnetic powder brake, and the wire-preventing disc is used for winding flat copper wires; a clamping disc is fixedly connected to the output shaft of the magnetic powder brake below the pay-off disc, and the bottom surface of the pay-off disc tightly abuts against the top surface of the clamping disc; the top end of the output shaft of the magnetic powder brake penetrates through the pay-off reel and is coaxially and threadedly connected with a fastening tip cone, and the bottom surface of the fastening tip cone tightly abuts against the top surface of the pay-off reel.

10. A winding machine according to claim 3, characterized in that: the winding machine also comprises a straightening mechanism, and the straightening mechanism comprises a straightening frame and two straightening assemblies which are arranged on the straightening frame and have the same structure, wherein one straightening assembly is horizontally arranged, and the other straightening assembly is vertically arranged; the straightening assembly comprises a fixed disc, two rows of straightening wheels are rotatably arranged on the fixed disc, the two rows of straightening wheels are distributed in a left-right staggered manner, and the distance between the two rows of straightening wheels is adjustable; every it all sets up annular straight groove of getting to get all to go out the side of the straight wheel, is located the level setting get the axial length of getting the straight groove of straight wheel on the straight subassembly and equal the width of the wide side terminal surface of flat type copper line, be located vertical setting get the axial length of getting the straight groove on the straight wheel on the straight subassembly and equal the width of the narrow side terminal surface of flat type copper line.

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