CN115765347A - Quick winding die for motor winding - Google Patents

Abstract

The invention provides a quick winding die for a motor winding, which solves the technical problems of inconvenience in disassembly and low winding efficiency of the conventional motor winding die. When winding, the die is firstly installed on the main shaft of the winding equipment and is fastened through screws, so that the die and the winding equipment are coaxially installed and rotate. Then a group of mould tires are sequentially arranged on the mandrel and are fastened by a washer and a knurled nut. After the preparation work is finished, formally entering a winding link, winding the end of the enameled wire on a winding column for fixing, winding a coil on each molding surface of the mold and binding the coil. And after the group of coils are wound, detaching the gasket and the knurled nut, loosening the end of the enameled wire, taking all the molded tyre coils off the mandrel, and sequentially demolding to obtain the required coils.

Description

Quick winding mold for motor winding

Technical Field

The invention belongs to the technical field of motor manufacturing, and particularly relates to a quick winding die for a motor winding, which is suitable for winding a coil of a permanent magnet direct current torque motor which needs to be subjected to coil inserting (or coil inserting) due to high slot fullness.

Background

With the continuous development of science and technology, especially in seeker products, a low-speed direct current motor which can output a large torque at a low speed and save a certain space is required, and the use of a permanent magnet direct current torque motor is a necessary trend. This kind of motor is by the stator, armature and three big parts of brush yoke constitute, the stator is mostly the permanent magnet of magnetic conduction iron table subsides, the armature is mostly winding coil, this kind of torque motors requires moment index maximize when the design, armature winding need form specific coil with special wire winding mould, put into armature core through the rule, need use the coil of equal quantity according to motor armature core slot number, demand to motor coil is great during actual production, but the motor coil winding mould coil that uses at present dismantles inconveniently, the coiling efficiency is lower, analyze its reason, mainly receive the system:

1. because the coils after winding are connected, disconnection is not allowed, and the coils are difficult to demold from a die after winding is finished;

under the influence of winding tension (namely friction) of a winding machine, a coil is wound on the outer circular surface of the step of the tire mould and is taken down by sequentially applying a certain external force by hands, and the process is easy to cause disorder of the bound coil;

2. the motor coil winding mould is installed behind the overhanging end of coiling machine, and there is not the axiality to fix a position the restraint, and the mould child gyration of winding mould in the coiling process is beated greatly (at present measure the axle head beat and be greater than 1 mm), can lead to coil winding back resistance uniformity relatively poor, can't satisfy the technological requirement even.

3. The motor coil winding mould wire passing groove (which is also a groove through which a binding wire passes) cannot be guaranteed to be on the same straight line, and manual calibration is needed, so that the coil winding efficiency is affected.

In view of the above problems, a new winding mold for motor windings is needed.

Disclosure of Invention

The invention aims to solve the technical problems of inconvenient disassembly and low winding efficiency of the existing motor coil winding die, and provides a quick winding die and a winding method of a motor coil.

In order to achieve the purpose, the technical solution provided by the invention is as follows:

a quick winding mould of motor winding, its special character lies in: comprises a mandrel, a winding post, a tire molding component and a fastening component;

the mandrel is coaxially arranged on a main shaft of the winding machine equipment, and the coaxiality is less than 0.1mm;

defining one end of a mandrel connected with a main shaft of a winding machine device as a head end and the other end as a tail end;

the winding post, the molding tire assembly and the fastening assembly are sequentially arranged on the mandrel from the head end to the tail end, and a limiting step is arranged between the positions, where the winding post and the molding tire assembly are arranged, on the mandrel;

the winding post is perpendicular to the mandrel and used for fixing the end of the enameled wire;

the tire molding assembly comprises a head-end tire, a plurality of middle tires and a tail-end tire which are coaxially matched and sleeved on the mandrel in sequence; namely, the whole tire molding assembly is arranged on the mandrel in a matching way through an inner hole, and the tire molding can slide on the mandrel;

one side of the head-end molding bed close to the head end is a plane, and one side of the tail-end molding bed close to the tail end is a plane; bosses with the same shape are arranged on the opposite side surfaces of the adjacent tire bodies among the head-end tire, the middle tires and the tail-end tire in a staggered manner, and the bosses on the two sides of each middle tire are also arranged in a staggered manner; the bosses on the side surfaces of the adjacent mould bodies are butted to form an annular circular table coaxial with the bosses, the peripheral surface of the annular circular table is a forming surface for winding the coil, and the diameter of the forming surface is smaller than that of the mould body;

the tire bodies of the head-end tire, each middle tire and the tail-end tire are respectively provided with two grooves along the radial direction and symmetrically arranged around the axis; the bottoms of the grooves are flush with the peripheral surface of the annular round table (a binding wire and an enameled wire can conveniently pass through the grooves, and the winding requirements of the coil are met), the central surfaces of all the grooves are coplanar, and pass through the axes of the core shaft and the winding column;

the butt joint surface of the bosses on the adjacent tire bodies is an inclined surface, the root part of the inclined surface radially passes through the axis of the mandrel, and the included angle between the root part of the inclined surface and the horizontal plane where the axis of the mandrel is located is 45 degrees;

the fastening assembly is matched with the limiting step to fasten the tire molding assembly on the mandrel, namely the limiting step limits the whole tire molding assembly to move towards the head end of the mandrel, and the fastening assembly limits the whole tire molding assembly to move towards the tail end of the mandrel;

further, the mandrel is a step shaft with a reduced outer diameter from the head end to the tail end;

the head end of the mandrel is in a sleeve shape, at least two threaded holes are formed in the wall surface of the mandrel, and the hole pitch is larger than 2 times of the size of the threaded holes (namely the hole pitch is determined according to the size of the threaded holes); the mandrel is coaxially sleeved on the main shaft of the winding machine equipment, the mandrel and the main shaft of the winding machine equipment are fastened by the fastening screw through the threaded hole on the wall surface of the mandrel, and the jumping value of the outer circular surface of the tail end (namely the overhanging section) of the mandrel is smaller than 0.04mm.

Furthermore, the width of each tire body is 5 +/-0.5 mm, the smaller the size is, the longer the die is assembled, and the more favorable the control on the outward end jumping of the whole winding die is, while the die strength is ensured and the length requirement of the connecting wire between the coils is considered.

Furthermore, the edges of the grooves are provided with fillets R1, so that sharp edges can be prevented from damaging lines in the use process;

the groove width of the groove is 2mm +/-0.2 mm, and the size of the groove is mainly considered to be a binding wire and an enameled wire.

Further, the number of the intermediate tires is 8-10.

Further, the fastening assembly includes a washer and a nut;

the gasket is arranged between the nut and the tail end molding bed;

in order to facilitate manual tightening of operators, other special tools are not needed, and knurling is arranged on the outer peripheral surface of the nut, so that the nut can be quickly mounted and dismounted.

Further, the winding post is in threaded engagement with the mandrel.

Furthermore, the material of the molding assembly is organic glass, so that the winding hardness of the coil can be met, the enameled wire cannot be damaged, and the material has good cutting performance, good machinability and long service life.

The winding method of the quick winding die utilizing the motor winding is characterized by comprising the following steps;

1) Quick winding die for mounting motor winding on main shaft of winding machine equipment

1.1 Mounting the mandrel on a main shaft of winding machine equipment, measuring a jumping value of the outer circular surface of the tail end of the mandrel by using a dial indicator, and fastening by using a fastening screw after the jumping value meets requirements;

1.2 Mounting the winding post on the mandrel;

1.3 Mounting a tire molding assembly on the mandrel in sequence according to the sequence of the head tire molding, the middle tire molding and the tail tire molding, and fastening by using a fastening assembly;

the sequence between the steps 1.2) and 1.3) can be changed;

2) Wound coil

Arranging the end of an enameled wire on a winding column, and arranging a coil binding wire in the groove (specifically, before winding, two ends of one coil binding wire respectively penetrate through the grooves on the head-end mould and the first intermediate mould, and the middle part of the coil binding wire is attached to a coil forming surface formed by the bosses of the two mould bodies); leading out the enameled wires from the groove of the head-end mould (placing the enameled wires above the coil binding wires, so that binding is convenient after winding), sequentially winding the enameled wires on each coil forming surface according to a winding program in winding machine equipment, binding each coil, and finishing coil winding (when the winding program is set, after finishing winding one coil, reserving a period of operation time which is enough for an operator to finish binding the coil, and continuously laying the next coil binding wires and leading out the enameled wires from the groove to the coil forming surfaces, so that winding and binding of all coils are finished in order); then, the fastening assembly is taken down, and all the tires with the coils on the mandrel are taken down;

3) Demoulding

And the adjacent tires move outwards along the contact surface of the boss with the angle of 45 degrees, so that the wound coil can be removed quickly by demoulding.

Further, also include 4) disassembling

And loosening the fastening screw, and taking the die off the main shaft of the winding device.

The invention has the advantages that:

1. the winding mold designed by the invention has the advantages of ingenious design, simple structure, convenience for installation and use, no need of considering the problem of artificial calibration, easiness for operation, capability of timely adjusting the number of the intermediate molds according to the number of coils required and strong practicability.

2. The fast winding die designed by the invention is used for winding the coil, the winding die does not need to be repeatedly disassembled and adjusted after one-time installation, the winding operation is carried out according to the recording method, a plurality of coils can be quickly obtained, the demoulding of the coils is convenient, and compared with other modes, the damage to the coils can be prevented.

3. The mandrel is coaxially arranged with a main shaft of winding equipment during winding, and the consistency of coils during winding can be ensured by controlling the jumping quantity of the extending end of the mandrel within a required range through internal control matching size and adjustment during installation. Meanwhile, the mandrel is not repeatedly disassembled and assembled in the winding process after the machine is started once, and the reliability in the winding process is ensured by mechanically fastening the mandrel through screws.

4. The mould of the invention, each set of mould is matched with a group, generally comprises 8-10 mould parts (the number can be adjusted according to the specific requirement); the tire is a core part for fast winding and demolding, and is a centralized embodiment of the fast idea of the invention. The winding in proper order obtains a plurality of coils, benefit from the existence of its adjacent type child 45 profiles simultaneously, compare in former mould (during the drawing of patterns, take off the coil from type child step axle terminal surface in proper order, influenced by tension, the coil produces frictional force on type child surface, it is difficult to take), with the outside staggered movement of type child, can fast demoulding (the boss of coil shaping face place annular round platform on by adjacent type child body forms through 45 die joint contact cooperation, directly keep away from the removal with adjacent type child along 45 die joints during the drawing of patterns, can realize type child step axle separation, it is quick convenient), winding efficiency and dismantlement quality have been promoted greatly.

Drawings

FIG. 1 is a schematic structural diagram of a winding mold for a motor winding according to the present invention;

FIG. 2 is an overall three-dimensional view of the winding mold of the motor winding of the present invention;

FIG. 3 is a three-dimensional view of a core part molding bed for rapidly disassembling the winding mold of the motor winding of the present invention; wherein a is a head-end tire, b is a middle tire, and c is a tail-end tire;

FIG. 4 is a front view of a head end tire of the tire assembly of the present invention;

figure 5 is a cross-sectional view of a head end tire of the tire assembly of the present invention;

figure 6 is a cross-sectional view of an intermediate tire in the tire assembly of the present invention;

the reference numerals are as follows (dimension of dimension in the figures is mm):

the method comprises the following steps of 1-a main shaft of a winding machine device, 2-a fastening screw, 3-a mandrel, 4-a winding column, 5-a mould component, 6-a gasket, 7-a knurled nut, 8-a boss and 9-a mould body.

Detailed Description

The invention is described in further detail below with reference to the following figures and specific examples:

as shown in fig. 1 to 6, a fast winding mold for motor windings comprises a mandrel for connection and installation, a molded tire for coil formation, a winding post for fixing the end of an enameled wire, a fastening screw for fixing the mold to a main shaft of a winding device, and a fastening assembly for fastening the molded tire.

The mandrel is coaxially arranged on a main shaft of the winding machine equipment, and the coaxiality is less than 0.1mm; the method is characterized in that one end of a mandrel connected with a main shaft of winding machine equipment is defined as a head end, and the other end of the mandrel is defined as a tail end. The mandrel is a step shaft with the reduced outer diameter from the head end to the tail end; the head end of the mandrel is in a sleeve shape, and the wall surface of the mandrel is provided with at least two threaded holes; the dabber is coaxial to be adorned on coiling machine equipment main shaft, is provided with two screw holes on the head in this embodiment, and the pitch-row is greater than 2 times screw hole size, and fastening screw passes through the screw hole on its wall and fastens dabber and coiling machine equipment main shaft, and the runout value of the excircle face of dabber tail end (overhanging section promptly) is less than 0.04mm.

From head end to tail end, kinking post, type child subassembly and fastening component install in proper order on the dabber, and be provided with spacing step between the position of installation kinking post and type child subassembly on the dabber for the whole removal of dabber head end of restriction type child subassembly.

The winding post is vertically arranged on the mandrel in a threaded connection mode and used for fixing the end of the enameled wire.

The mould child subassembly is including coaxial adaptation suit in proper order a head end mould child, a plurality of middle mould child and a tail end mould child on the dabber, and whole mould child subassembly passes through the hole cooperation promptly and installs on the dabber to the mould child can slide on the dabber. One side of the head-end molding bed close to the head end is a plane, and one side of the tail-end molding bed close to the tail end is a plane; bosses with the same shape are arranged on the opposite side surfaces of the adjacent tire bodies among the head-end tire, the middle tires and the tail-end tire in a staggered manner, and the bosses on the two sides of each middle tire are also arranged in a staggered manner; the bosses on the side surfaces of the adjacent mould bodies are butted to form an annular round table coaxial with the bosses, the peripheral surface of the annular round table is a forming surface for winding the coil, and the diameter of the forming surface is smaller than that of the mould body. Two grooves are symmetrically arranged on the tire body of the head-end tire, each middle tire and the tail-end tire along the radial direction and around the axis; the groove bottoms of the grooves are flush with the peripheral surface of the annular circular truncated cone (wires are convenient to tie and enameled wires pass through, and the requirement of winding coils is met), the central planes of all the grooves are coplanar, and the grooves pass through the central spindle and the axis of the winding column; the butt joint surface of the bosses on the adjacent tire bodies is an inclined surface, the root of the inclined surface radially passes through the axis of the mandrel, and the included angle between the root of the inclined surface and the horizontal plane where the axis of the mandrel is located is 45 degrees.

In the embodiment, the material of the molding assembly is organic glass, so that the winding hardness of the coil can be met, the enameled wire cannot be damaged, and the material has the advantages of good cutting performance, good machinability and long service life. The width of each tire body is 5mm, the smaller the tire body size is, the longer the tire body size is, and the control on the outward end jumping of the whole winding mold is facilitated; the boss thickness on the type body is 3.3mm (of course, the boss with different thickness can be set according to the requirement of coil product). The edge of the groove is provided with a fillet R1, so that the sharp edges can be prevented from damaging the line in the use process. The groove width of the groove is 2mmmm, and the size of the groove mainly considers the binding wire and the enameled wire; the number of the intermediate tires is 9.

Fastening components include packing ring and annular knurl nut (so that operating personnel manually screws up, quick installation dismantles) for restriction type child subassembly is whole to dabber tail end removal, and after the installation, whole type child subassembly carries out spacing locking through the spacing step face of dabber and fastening components, restricts it and takes place to remove at the dabber.

The method for winding by adopting the quick winding die comprises the following steps:

1) Quick winding die for mounting motor winding on main shaft of winding machine equipment

1.1 Mounting the mandrel on a main shaft of winding machine equipment, measuring a runout value of an outer circular surface at the tail end of the mandrel by using a dial indicator, and fastening by using a fastening screw after the runout value meets requirements; therefore, when winding, the die is firstly installed on a main shaft of winding equipment and is fastened through fastening screws, so that the die is ensured to be coaxially installed and rotated with the winding equipment; when in installation, the quick installation of the die and the main shaft of the winding equipment is realized by controlling whether the screw is fastened or not; when the coil is installed, the outward extending shaft of the core shaft is controlled to jump, so that the winding consistency of the coil can be controlled;

1.2 Mounting the winding post on the mandrel;

1.3 Mounting a tire assembly on the mandrel in sequence of a head-end tire, a middle tire and a tail-end tire, and fastening by using a gasket and a knurled nut; during installation, the number of coils after one-time demolding can be controlled by adjusting the number of the molded tires installed on the mandrel;

the sequence between the steps 1.2) and 1.3) can be changed;

after the preparation work is finished, the process formally enters the following winding link,

2) Wound coil

2.1 Winding the end of the enameled wire on the winding column, placing the coil binding wire in the groove, and leading out the enameled wire from the groove of the head-end molding bed;

2.2 Operating the winding equipment to enable the enameled wire to be wound on the molding surface of the molded tyre according to the set parameters of the winding equipment; when winding one coil, binding the coil with a coil binding wire which is put in advance (the two symmetrical grooves are used for preventing the coil binding wire in advance and binding the coil from the two symmetrical positions), and then winding the next coil; finishing the winding work of a whole series of coils until the winding procedure of the enameled wire is finished;

3) Stripping and removal

3.1 Unclamping the end of the enameled wire from the winding column;

3.2 Removing the washer and knurled nut;

3.3 Removing the entire belt coil of the tire assembly from the mandrel;

3.4 Moving the adjacent tires outwards along the 45-degree boss contact surface in a staggered manner to demold the coils, and taking out the tires after completion;

3.5 Loosening the fastening screw, and removing the die from the main shaft of the winding device to complete the whole winding process.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present disclosure.

Claims (10)

1. The utility model provides a quick wire winding mould of motor winding which characterized in that: comprises a mandrel, a winding column, a tire molding assembly and a fastening assembly;

the mandrel is coaxially arranged on a main shaft of the winding machine equipment, and the coaxiality is less than 0.1mm;

defining one end of a mandrel connected with a main shaft of a winding machine device as a head end and the other end as a tail end;

the winding post, the molding tire assembly and the fastening assembly are sequentially arranged on the mandrel from the head end to the tail end, and a limiting step is arranged between the positions, where the winding post and the molding tire assembly are arranged, on the mandrel;

the winding post is perpendicular to the mandrel and used for fixing the end head of the enameled wire;

the tire molding assembly comprises a head-end tire, a plurality of middle tires and a tail-end tire which are coaxially matched and sleeved on the mandrel in sequence;

one side of the head-end molding bed close to the head end is a plane, and one side of the tail-end molding bed close to the tail end is a plane; bosses with the same shape are arranged on the opposite side surfaces of the adjacent tire bodies among the head-end tire, the middle tires and the tail-end tire in a staggered manner, and the bosses on the two sides of each middle tire are also arranged in a staggered manner; the bosses on the side surfaces of the adjacent mould bodies are butted to form an annular circular table coaxial with the bosses, the peripheral surface of the annular circular table is a forming surface for winding the coil, and the diameter of the forming surface is smaller than that of the mould body;

the tire bodies of the head-end tire, each middle tire and the tail-end tire are respectively provided with two grooves along the radial direction and symmetrically arranged around the axis; the groove bottom of the groove is flush with the peripheral surface of the annular circular truncated cone; the central planes of all the grooves are coplanar and pass through the axes of the mandrel and the winding column;

the butt joint surface of the lug bosses on the adjacent tire body is an inclined surface, the root part of the inclined surface radially passes through the axis of the mandrel, and the included angle between the inclined surface and the plane where the axis of the mandrel and the root part of the inclined surface are positioned is 45 degrees;

the fastening assembly is matched with the limiting step to fasten the tire molding assembly on the mandrel.

2. The fast winding mold for motor windings according to claim 1, characterized in that:

the mandrel is provided with a step shaft with a reduced outer diameter from the head end to the tail end;

the head end of the mandrel is in a sleeve shape, at least two threaded holes are formed in the wall surface of the mandrel, and the hole pitch is larger than 2 times of the size of the threaded holes; the mandrel is coaxially sleeved on the main shaft of the winding machine equipment, the mandrel and the main shaft of the winding machine equipment are fastened by the fastening screw through the threaded hole in the wall surface of the fastening screw, and the runout value of the outer circular surface of the tail end of the mandrel is smaller than 0.04mm.

3. A fast winding die for motor windings according to claim 1 or 2, characterized in that:

the width of each tire body is 5 +/-0.5 mm.

4. A rapid winding die for motor windings according to claim 3, characterized in that:

the edge of the groove is provided with a fillet;

the groove width of the groove is 2mm +/-0.2 mm.

5. A rapid winding die for motor windings according to claim 4, characterized in that:

the number of the intermediate tires is 8-10.

6. The fast winding mold for motor windings according to claim 5, characterized in that:

the fastening assembly comprises a washer and a nut;

the gasket is arranged between the nut and the tail end molding bed;

and a knurl is arranged on the outer peripheral surface of the nut.

7. A rapid winding die for motor windings according to claim 6, characterized in that:

the winding post is in threaded fit with the mandrel.

8. The fast winding mold for motor windings according to claim 7, characterized in that:

the material of the molding assembly is organic glass.

9. A winding method using a fast winding die for a winding of an electric machine according to any of claims 1 to 8, characterized by comprising the steps of;

1) Rapid winding die for mounting motor winding of any one of claims 1-8 on main shaft of winding machine equipment

1.1 Mounting the mandrel on a main shaft of winding machine equipment, measuring a jumping value of the outer circular surface of the tail end of the mandrel by using a dial indicator, and fastening by using a fastening screw after the jumping value meets requirements;

1.2 Mounting the winding post on the mandrel;

1.3 Mounting a molding assembly on the mandrel in the order of a head-end molding, a middle molding and a tail-end molding, and fastening with a fastening assembly;

2) Wound coil

Arranging the end of the enameled wire on the winding column, and arranging the coil binding wire in the groove; leading out the enameled wires from the groove of the head-end molding base, sequentially winding the enameled wires on each coil molding surface according to a winding sequence program in a winding machine device, and binding each coil to finish coil winding; then, the fastening assembly is taken down, and all the tires with the coils on the mandrel are taken down;

3) Demoulding

And moving and separating the adjacent tires along the 45-degree boss contact surface, and quickly demoulding to take down the wound coil.

10. The winding method according to claim 9, wherein: further comprising:

4) Disassembly

And loosening the fastening screw, and taking the die off the main shaft of the winding device.

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