CN112018978B - Method and device for forming single-side coil of high-power motor - Google Patents

Method and device for forming single-side coil of high-power motor Download PDF

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Publication number
CN112018978B
CN112018978B CN202010832060.5A CN202010832060A CN112018978B CN 112018978 B CN112018978 B CN 112018978B CN 202010832060 A CN202010832060 A CN 202010832060A CN 112018978 B CN112018978 B CN 112018978B
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coil
arc
power motor
forming
swing
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CN112018978A (en
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吴军
马英
郭超炎
张建安
周超
文思静
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Zhuzhou South Electromechanical Manufacturing Co ltd
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Zhuzhou South Electromechanical Manufacturing Co ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0414Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

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  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

A method and a device for forming a single-side coil of a high-power motor, firstly, putting a linear rod-shaped raw material before forming the coil of the high-power motor into a clamping device formed by four clamping clips; the two clamps clamp the two ends of the coil, the two clamps clamp the middle of the linear bar-shaped raw material, the two middle clamps are fixed, the two end clamps clamp the two ends of the linear bar-shaped raw material, walk according to the shape required by the coil, drive the arc pushing mechanism to walk synchronously, the two end clamps clamp the moving part of the linear bar-shaped raw material according to the shape required by the coil, and the single-side coil forming is completed by matching with the arc pushing mechanism. The coil is formed by the mutual matching movement of the four clamps and the arc ejection mechanism, the defect of the forming method at the present stage is overcome, the size of the mechanism is adjusted, the coil forming device can adapt to the forming of single-side coils of all motor types, the adjustment is simple, and the replacement is more convenient.

Description

Method and device for forming single-side coil of high-power motor
Technical Field
The utility model relates to a method and a device for forming a motor coil wire, in particular to a method and a device for forming a coil with a complex shape of a high-power motor; the method and the device for forming the single-side coil of the high-power motor can automatically form a space complex coil formed by winding a circular cylinder with a radius determined by the size of the coil of the high-power motor, wherein the middle part of the coil of the high-power motor is a middle straight line section, the middle straight line section sequentially comprises a spiral line circular arc section, a straight line section and a spiral line circular arc section towards the end part, and the spiral line circular arc section surrounds the space complex coil formed by winding the circular cylinder with the radius determined by the size of the coil of the high-power motor, so that the automatic forming of the complex end coil is realized; belongs to the technical field of motor coil manufacturing.
Background
Along with the strong promotion of clean energy in China, large-scale wind driven generators are rapidly developed in recent years, the power is rapidly increased from 1MW to 2MW to 5MW to 6MW and even higher, and it is expected that wind driven generators with power of more than 10MW become possible in a shorter time in the future, and the wind driven generators with higher power can not only provide more clean energy, but also improve land utilization rate and reduce power generation cost. However, with the increase of the power of the generator, the coil, which is a key component of the generator, is also developed in a direction of larger size and larger sectional area, and the coil shape is also more and more complicated, and is formed by several straight line segments with different lengths and several spiral lines with different diameters, and the middle is transited by the R angle.
At present, for the forming of the high-power motor coils, domestic motor manufacturers manually knock and form the coils on a die, the original coil sectional area is smaller, the knocking force of the coil forming is small basically at 30-50 square millimeters, workers can accept the coil forming, the sectional area of the high-power motor coils is developed to 200-300 square millimeters, the labor intensity of the workers is greatly increased, and the efficiency is very low, so that an advanced and efficient forming mode is urgently needed to replace the original forming mode.
Through patent search, no related patent technical literature report has been found, and the closest paper is the related literature, and the related literature has the following several items:
1. the utility model relates to a runway type coil numerical control taping machine, which comprises a base, a telescopic platform is connected with a taping head, the taping head can move back and forth along the telescopic platform, the bottom of the taping head is arranged on a ball screw II, the end part of the ball screw II is connected with a telescopic platform motion servo motor, the telescopic platform motion servo motor is fixed on the base, the periphery of the telescopic platform is provided with a cylinder clamp device, the cylinder clamp device is locked on a ball guide rail through a cylinder locking handle, the ball guide rail is fixed on the base, two sides of the base are provided with an electric cabinet and an operating box, the electric cabinet is electrically connected with the operating box, and the taping head is electrically connected with the electric cabinet and the operating box; the cylinder clamp device can be divided into a cylinder clamp front device, a cylinder clamp rear device, a cylinder clamp left device and a cylinder clamp right device according to assembly positions, the cylinder clamp front device, the cylinder clamp rear device, the cylinder clamp left device and the cylinder clamp right device are identical in structure, the cylinder clamp front device is located the front side edge of a base, the cylinder clamp rear device is located the rear side edge of the base, the cylinder clamp right device is located the right side edge of the base, the cylinder clamp left device is located the left side edge of the base, the cylinder clamp device comprises an ultrathin cylinder, one end of a lifting and corner connecting block is connected to the ultrathin cylinder, the other end of the lifting and corner connecting block is connected with a sliding table, a corner cylinder is fixed at the bottom of the lifting and corner connecting block, the sliding table cylinder is connected with a gas clamp, the cylinder can control the gas clamp to slide front and back, the bottom of the ultrathin cylinder is fixed at the front end of a fixed plate, the rear end of the fixed plate is fixed on a fixed guide rail, the bottom of the fixed rail is fixed on a fixed seat through a mini cylinder, the bottom of the fixed seat is fixed on the fixed support, and a handle is fixed on the base through the fixed support.
2. The utility model patent number is CN201921600351.0, the name is a belting machine with a double-upright lifting mechanism, the patent discloses a belting machine with a double-upright lifting mechanism, which comprises a supporting base, a frame, a belting head, a linear clamp assembly and a nose clamp assembly, wherein the frame is arranged on the supporting base, the belting head is hung on the frame, and a linear clamp and a nose clamp are respectively arranged on the supporting base through mounting mechanisms; the machine frame is a lifting column type machine frame, and the taping head is arranged below the lifting column type machine frame through a cross beam and moves up and down in the space of the taping machine under the drive of the cross beam; and the strap head is connected with the cross beam through a linkage assembly, and the air posture of the strap head is adjusted through the linkage assembly.
3. The utility model patent number is CN201910934407.4, and the name is "runway type coil numerical control taping machine", and this patent discloses a runway type coil numerical control taping machine, and the on-line screen storage device comprises a base, the base is equipped with flexible platform along the periphery, install the taping head on the flexible platform, the taping head can follow flexible platform and move, flexible platform periphery is equipped with cylinder clamp device, cylinder clamp device is fixed in on the base through cylinder locking handle, the base both sides are equipped with regulator cubicle and control box, regulator cubicle and control box electrical connection, the control box is connected with cylinder clamp device electrical connection, taping head and regulator cubicle and control box electrical connection.
From the analysis of the above patent document, we found that although there is an automatic taping machine, for a high-power coil with a complicated shape at the end, particularly a coil with a coil cross-sectional area of 200-300 square millimeters, when the end is bent and formed, the intermediate portion which is transited by the R angle is formed by manually knocking on a die as described above, and no improvement has been proposed, so that the above-described problem still exists, and further study is still necessary.
Disclosure of Invention
Aiming at the defect that the middle part of the coil is formed by knocking on a die manually during end bending, the utility model provides a novel high-power motor single-side coil forming method which can effectively improve the forming method of the whole high-power coil, and particularly the middle part of the coil is formed by bending according to requirements.
In order to achieve the purpose, the utility model provides a method for forming a single-side coil of a high-power motor, wherein the middle part of the coil of the high-power motor is a middle straight line segment, the middle straight line segment sequentially comprises a spiral line circular arc segment and a straight line segment towards the end part, and the spiral line circular arc segment is wound around a radius cylinder determined according to the size of the coil of the high-power motor; the method is characterized in that: firstly, putting a linear bar-shaped raw material before forming a high-power motor coil into a clamping device formed by four clamping clips; the two clamps clamp the two ends of the coil, the two clamps clamp the middle of the linear bar-shaped raw material, the two middle clamps are fixed, the two end clamps clamp the two ends of the linear bar-shaped raw material, walk according to the shape required by the coil, drive the arc pushing mechanism to walk synchronously, the two end clamps clamp the moving part of the linear bar-shaped raw material according to the shape required by the coil, and the single-side coil forming is completed by matching with the arc pushing mechanism.
Further, the middle two middle clamps are fixed, a section of the formed single-side coil is a straight line section, and the middle two middle clamps clamp the two end points of the middle straight line section according to the determined size and the length of the middle straight line section of the coil and keep the two end points stationary.
Further, after the two end clamps at the two ends clamp the two ends of the linear bar-shaped raw material and walk according to the shape required by the coil, the two end parts at the two ends of the linear bar-shaped raw material are formed, one straight line section part is arranged at each of the two ends of the circular arc section of the single-side coil spiral line, then the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially, deformation is generated from the clamping position of the middle clamp to the clamping position of the two end clamps at the two ends, and the clamps at the two ends rotate around the same axis when in rotary swinging motion.
Further, the axis of the clamp rotary swing is an analog motor axis; the middle two middle clamps simulate motor rotor trunking and remain motionless when the two end clamps at the two ends move.
Further, the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially, and meanwhile, the power driving mechanism also drives the two end clamps at the two ends to move horizontally.
Further, a top arc mechanism ensuring the shape is arranged between the end clamp and the middle clamp, and the top arc mechanism also rotates around the axis; the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially and move left and right, the power driving mechanism drives the arc pushing mechanism arranged outside the linear bar-shaped raw material to swing circumferentially and move left and right similarly, the arc pushing mechanism limits the deformation of the wire from the lower part of the linear bar-shaped raw material, and finally the part from the clamping position of the middle two middle clamps to the clamping position of the two end clamps of the coil of the high-power motor forms the single-side coil of the high-power motor with the spiral arc section.
Further, the swing mechanism and the arc ejection mechanism rotate around the same axis, the radius can be adjusted, and the swing angle of the swing mechanism is controlled by the PLC, so that the length and the helix angle of the spiral arc section are controlled.
Further, the movement of the arc-ejecting mechanism is driven by a set of equal-proportion transmission mechanism no matter the initial position of the high-power motor coil in the forming process or the forming process, the arc-ejecting mechanism is controlled to be always positioned in the middle position of the swinging mechanism and the fixing mechanism by the equal-proportion transmission mechanism, the movement amount and the movement speed of the arc-ejecting mechanism in the forming process are ensured to be half of those of the swinging mechanism, so that interference can be avoided, and the arc-ejecting mechanism is always positioned in the forming favorable position.
Further, a limiting mechanism is arranged on the outer side of the swinging mechanism, and the horizontal movement of the swinging mechanism is limited by the limiting mechanism; the limiting mechanism limits the swing mechanism to move after a certain distance in the horizontal direction in the swing process, and continues to swing to tighten the motor coil and attach the arc-ejecting mechanism to form a required spiral line segment.
Further, the forming mode of the high-power motor coil is carried out according to the following steps:
1) Step 1: and (3) adjusting the positions of all mechanisms:
loosening a clamping device formed by four clamps on the equipment, putting a linear bar-shaped raw material into the clamping device for clamping, adjusting the horizontal positions of a fixing mechanism, an arc ejection mechanism, a swinging mechanism and a limiting mechanism according to a high-power motor coil, adjusting the specific positions according to the product requirement, and locking the fixing mechanism and the limiting mechanism by using a locking piece after the position adjustment;
2) Step 2: and (3) forming a circular arc section of a coil spiral line:
two ends of a coil spiral line circular arc section made of a linear bar-shaped raw material are respectively provided with a section of linear part, the two sections of linear parts are respectively clamped by a fixing mechanism and a clamping device on a swinging mechanism, the clamping device on the swinging mechanism is driven by power to perform circumferential swinging, the coil starts to deform, the swinging mechanism 3 is driven to move left and right in the horizontal direction, and meanwhile, a top arc mechanism is driven to perform circumferential swinging and left and right movement, and finally, the coil forms a section of spiral line circular arc section due to the limitation of the top arc mechanism 2;
3) Step 3: the mechanisms return to the original positions:
loosening the clamping device, taking down the formed coil, and returning the swing mechanism and the arc ejection mechanism to the initial positions through the driving force, so that the arc ejection mechanism is always positioned at the intermediate positions of the swing mechanism and the fixing mechanism.
A single-side coil forming device of a high-power motor comprises a fixing mechanism; an arc ejection mechanism; a swinging mechanism; four parts of the limiting mechanism; the fixing mechanism is arranged and fixed on a fixing support of the frame, but can transversely move along a guide rail on the fixing support, and the distance between the two fixing mechanisms is adjusted so as to meet the requirements of different high-power motor coil lengths; the arc-ejecting mechanism and the swinging mechanism are also sleeved on the guide rail extension section on the fixed bracket and can swing around the guide rail in a revolving way; the limiting mechanism is arranged on the outer side of the swinging mechanism and used for limiting the transverse position of the swinging mechanism according to the length of the coil of the high-power motor; the swing mechanism and the arc ejection mechanism rotate around the same axis, the radius can be adjusted, and the swing angle of the swing mechanism is controlled by the PLC, so that the length and the helix angle of the spiral arc section are controlled.
The utility model has the advantages that:
the utility model overcomes the defects of the forming method at the present stage by the mutual matching movement of the four clamps and the arc ejection mechanism, and by using the forming method, when the coil is formed on the automatic equipment, the coil can be formed by adjusting the size of part of the mechanism, the efficiency is greatly improved, manual interference is not needed in the forming process, and the coil has accurate size, meets the requirements and has good consistency.
Drawings
FIG. 1 is a diagram showing the structure of a coil of a high-power motor according to the present utility model after molding;
FIG. 2 is a system frame structure diagram of one embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of the single side of FIG. 2;
FIG. 4 is a schematic view of the starting position structure of the single side of FIG. 2;
FIG. 5 is a schematic view of the single-sided end clamp of FIG. 2 beginning with the swing of the swing mechanism;
FIG. 6 is a schematic view of the single-sided end clamp of FIG. 2 swinging and moving with a swing mechanism;
fig. 7 is a schematic view of the single-sided end clamp of fig. 2 returning.
Detailed Description
The utility model will be further elucidated with reference to the drawings and to specific embodiments.
Example 1
A shaping method of single-side coil of high-power motor, the middle part of the coil of high-power motor is a middle straight line segment, the middle straight line segment is a spiral line circular arc segment, straight line segment sequentially in the direction of end, the spiral line circular arc segment, and the spiral line circular arc segment winds round a radius cylinder determined according to the size of the coil of high-power motor to get final product; firstly, putting linear motor coil raw materials of a high-power motor coil into a clamping device formed by four clamping clips; wherein, two clamps clamp the two ends of the coil, two clamps clamp the middle of the coil; the middle two middle clamps are fixed, the two end clamps at the two ends clamp the linear motor coil raw materials to walk according to the shape required by the coil, meanwhile, the arc pushing mechanism is driven to walk simultaneously, the two end clamps at the two ends clamp the linear motor coil raw materials at the two ends to clamp the two ends according to the shape required by the coil, and the arc pushing mechanism is matched to complete coil forming. The following is further described in conjunction with the accompanying drawings:
the structure of the formed high-power motor coil is shown in fig. 1, and it can be seen from the drawing that the middle part of the high-power motor coil 1 is a middle straight line segment 101, the middle straight line segment 101 is sequentially provided with a spiral line arc segment 102, a straight line segment 103 and a spiral line arc segment 104 towards the end part, and the spiral line arc segment 104 is wound around a radius cylinder determined according to the size of the high-power motor coil.
The molding method of the single-side coil of the high-power motor is that the molding device of the taping machine is molded, and the molding taping machine device at least comprises a fixing mechanism 5; a top arc mechanism 2; a swinging mechanism 3; four parts of the limiting mechanism 4; as shown in fig. 3, the fixing mechanism 1 is arranged and fixed on a fixing bracket 7 of the frame 6, but can move transversely along a guide rail 8 on the fixing bracket 7, and the distance between the two fixing mechanisms 5 is adjusted to meet the requirements of different lengths of the high-power motor coils 1; the arc-ejecting mechanism 2 and the swinging mechanism 3 are also sleeved on a guide rail extension section 9 on the fixed bracket 7 and can swing around a guide rail 8; the limiting mechanism 4 is installed at the outer side of the swinging mechanism 3, and is used for limiting the transverse position of the swinging mechanism 3 according to the length of the high-power motor coil 1. The swinging mechanism 3 and the top arc mechanism 2 rotate around the same axis, the radius can be adjusted, and the swinging angle of the swinging mechanism 3 is controlled by a PLC, so that the length and the helix angle of the spiral arc section are controlled.
According to the drawing, as can be seen from fig. 3, the initial positions of the mechanisms can be adjusted, the length of the high-power motor coil 1 extending out of the iron core can be determined by adjusting the position of the limiting mechanism 4, the radius of the arc of the motor coil is required to be equal to the radius of the iron core, the radius of the arc can be determined by adjusting the heights of the clamps on the swinging mechanism 3 and the fixing mechanism 5, the top arc plate of the top arc mechanism 2 can be replaced according to different products, the top arc mechanism 2 is driven by a set of linkage device, the top arc mechanism 2 is always positioned in the middle position of the swinging mechanism 3 and the fixing mechanism 5, and after the positions of the mechanisms are set according to the drawing, the clamps, the fixing mechanism 5 and the limiting mechanism 4 can be locked, so that the operation is simple and convenient.
In order to make the utility model more obvious, the forming process of the high-power motor coil 1 is disassembled, and the following detailed description is carried out by matching with the accompanying drawings.
Step 1, placing raw materials (linear copper bars) of a high-power motor coil 1 on a clamp and an arc-ejecting mechanism at an initial position of equipment:
with reference to fig. 4, the raw material (copper bar) of the high-power motor coil 1 is in a straight line state, and the swing mechanism 3 and the fixing mechanism 5 are far apart, so that the raw material of the high-power motor coil 1 is put into the device.
Step 2: clamping the high-power motor coil 1, and starting rotation of the swinging mechanism 3:
in combination with fig. 5, the swinging mechanism 3 starts to rotate, the arc-ejecting mechanism 2 rotates passively, the swinging mechanism 3 is pulled by the high-power motor coil 1 and gradually approaches the fixing mechanism 5, and the swinging mechanism 3 and the fixing mechanism 5 are closer and closer to each other, as shown in fig. 6.
Step 3: the high-power motor coil 1 is molded, and the distance between the swinging mechanism 3 and the fixing mechanism 5 is limited by the limiting mechanism 4:
referring to fig. 7, when the swinging mechanism 3 rotates to approach the set angle, the distance between the swinging mechanism 3 and the fixing mechanism 5 is limited by the limiting mechanism 4, the swinging mechanism 3 continues swinging, the tension applied to the high-power motor coil 1 at the moment is larger and larger, the swinging mechanism 3 stops completely after being in place, and the forming is completed at the moment.
Step 4: returning each mechanism:
with reference to fig. 7, the device releases the formed coil and removes it, the oscillating mechanism 3 rotates to the initial position, and the mechanisms return to the initial position by return means.
As can be seen from the above description, the utility model relates to a method for forming a single-side coil of a high-power motor, wherein the middle part of the coil of the high-power motor is a middle straight line segment, the middle straight line segment is a spiral line circular arc segment and a straight line segment in sequence from the middle straight line segment to the end part, and the spiral line circular arc segment is wound around a radius cylinder determined according to the size of the coil of the high-power motor; the method is characterized in that: firstly, putting a linear bar-shaped raw material before forming a high-power motor coil into a clamping device formed by four clamping clips; the two clamps clamp the two ends of the coil, the two clamps clamp the middle of the linear bar-shaped raw material, the two middle clamps are fixed, the two end clamps clamp the two ends of the linear bar-shaped raw material, walk according to the shape required by the coil, drive the arc pushing mechanism to walk synchronously, the two end clamps clamp the moving part of the linear bar-shaped raw material according to the shape required by the coil, and the single-side coil forming is completed by matching with the arc pushing mechanism.
Further, the middle two middle clamps are fixed, a section of the formed single-side coil is a straight line section, and the middle two middle clamps clamp the two end points of the middle straight line section according to the determined size and the length of the middle straight line section of the coil and keep the two end points stationary.
Further, after the two end clamps at the two ends clamp the two ends of the linear bar-shaped raw material and walk according to the shape required by the coil, the two end parts at the two ends of the linear bar-shaped raw material are formed, one straight line section part is arranged at each of the two ends of the circular arc section of the single-side coil spiral line, then the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially, deformation is generated from the clamping position of the middle clamp to the clamping position of the two end clamps at the two ends, and the clamps at the two ends rotate around the same axis when in rotary swinging motion.
Further, the axis of the clamp rotary swing is an analog motor axis; the middle two middle clamps simulate motor rotor trunking and remain motionless when the two end clamps at the two ends move.
Further, the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially, and meanwhile, the power driving mechanism also drives the two end clamps at the two ends to move horizontally.
Further, a top arc mechanism ensuring the shape is arranged between the end clamp and the middle clamp, and the top arc mechanism also rotates around the axis; the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially and move left and right, the power driving mechanism drives the arc pushing mechanism arranged outside the linear bar-shaped raw material to swing circumferentially and move left and right similarly, the arc pushing mechanism limits the deformation of the wire from the lower part of the linear bar-shaped raw material, and finally the part from the clamping position of the middle two middle clamps to the clamping position of the two end clamps of the coil of the high-power motor forms the single-side coil of the high-power motor with the spiral arc section.
Further, the swing mechanism and the arc ejection mechanism rotate around the same axis, the radius can be adjusted, and the swing angle of the swing mechanism is controlled by the PLC, so that the length and the helix angle of the spiral arc section are controlled.
Further, the movement of the arc-ejecting mechanism is driven by a set of equal-proportion transmission mechanism (such as a gear rack equal-proportion transmission mechanism) no matter the initial position of the high-power motor coil in the forming process or the forming process, the arc-ejecting mechanism is controlled by the equal-proportion transmission mechanism to be always positioned in the middle position of the swinging mechanism and the fixing mechanism, the movement amount and the movement speed of the arc-ejecting mechanism in the forming process are ensured to be half of those of the swinging mechanism, so that interference can be avoided, and meanwhile, the arc-ejecting mechanism is always positioned in the forming favorable position.
Further, a limiting mechanism is arranged on the outer side of the swinging mechanism, and the horizontal movement of the swinging mechanism is limited by the limiting mechanism; the limiting mechanism limits the swing mechanism to move after a certain distance in the horizontal direction in the swing process, and continues to swing to tighten the motor coil and attach the arc-ejecting mechanism to form a required spiral line segment.
Further, the forming mode of the high-power motor coil is carried out according to the following steps:
1) Step 1: and (3) adjusting the positions of all mechanisms:
loosening a clamping device formed by four clamps on the equipment, putting a linear bar-shaped raw material into the clamping device for clamping, adjusting the horizontal positions of a fixing mechanism, an arc ejection mechanism, a swinging mechanism and a limiting mechanism according to a high-power motor coil, adjusting the specific positions according to the product requirement, and locking the fixing mechanism and the limiting mechanism by using a locking piece after the position adjustment;
2) Step 2: and (3) forming a circular arc section of a coil spiral line:
two ends of a coil spiral line circular arc section made of a linear bar-shaped raw material are respectively provided with a section of linear part, the two sections of linear parts are respectively clamped by a fixing mechanism and a clamping device on a swinging mechanism, the clamping device on the swinging mechanism is driven by power to perform circumferential swinging, the coil starts to deform, the swinging mechanism 3 is driven to move left and right in the horizontal direction, and meanwhile, a top arc mechanism is driven to perform circumferential swinging and left and right movement, and finally, the coil forms a section of spiral line circular arc section due to the limitation of the top arc mechanism 2;
3) Step 3: the mechanisms return to the original positions:
loosening the clamping device, taking down the formed coil, and returning the swing mechanism and the arc ejection mechanism to the initial positions through the driving force, so that the arc ejection mechanism is always positioned at the intermediate positions of the swing mechanism and the fixing mechanism.
The above-listed embodiments are only to clearly and completely describe the technical solution of the present utility model in conjunction with the accompanying drawings; it should be understood that the embodiments described are only some embodiments, but not all embodiments, and that the terms such as "upper", "lower", "front", "rear", "middle", etc. used in this specification are also for descriptive purposes only and are not intended to limit the scope of the utility model in which the utility model may be practiced, but rather the relative relationships thereof may be altered or modified without materially altering the technology to the extent that the utility model may be practiced. Meanwhile, the structures, proportions, sizes and the like shown in the drawings are only used for being matched with the disclosure of the specification, so that people skilled in the art can know and read the structures, proportions and sizes, and the like, and are not limited by the practical limit conditions of the utility model, so that the structure modification, the proportion relation change or the size adjustment do not have any technical significance, and all fall within the scope covered by the technical disclosure of the utility model under the condition that the effect and the achieved aim of the utility model are not affected. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model has the advantages that:
compared with the prior art, the die forming process has the advantages that the forming tool is greatly simplified, the labor intensity of workers is reduced, the efficiency is greatly improved because the operation is simple, the forming of one coil only needs about 30 seconds, each operation is controlled by a numerical control program, the setting is simple when the product model is changed, the operation is convenient, the formed coil has accurate size and good consistency, and the automation of the high-power motor coil forming process is realized.

Claims (9)

1. A shaping method of single-side coil of high-power motor, the middle part of the coil of high-power motor is a middle straight line segment, the middle straight line segment is a spiral line circular arc segment, straight line segment sequentially in the direction of end, and the spiral line circular arc segment winds around a radius cylinder determined according to the size of the coil of high-power motor; the method is characterized in that: firstly, putting a linear bar-shaped raw material before forming a high-power motor coil into a clamping device formed by four clamping clips; the two clamps clamp the two ends of the coil, the two clamps clamp the middle of the linear bar-shaped raw material, the two middle clamps are fixed, the two end clamps clamp the two ends of the linear bar-shaped raw material, walk according to the shape required by the coil, drive the arc ejection mechanism to walk synchronously, and the two end clamps clamp the movable part of the linear bar-shaped raw material according to the shape required by the coil, and cooperate with the arc ejection mechanism to finish the forming of the single-side coil; after two end parts of two ends of a straight-line bar-shaped raw material are molded, a section of straight-line section part is arranged at each of two ends of a circular arc section of a single-side coil spiral line, then a power driving mechanism drives a swinging mechanism to drive two end clamp jaws at two ends to swing circumferentially, deformation is generated from the clamping position of a middle clamp to the clamping position part of the two end clamp jaws at two ends, and the clamp jaws at two ends rotate around the same axis during rotary swinging movement; the axis of the clamp rotary swing is an analog motor axis; the middle two middle clamps simulate motor rotor trunking and remain motionless when the two end clamps at the two ends move.
2. The method for forming the single-sided coil of the high-power motor as claimed in claim 1, wherein the method comprises the following steps: the middle two middle clamps are fixed, a section of the formed unilateral coil is a straight line section, and the middle two middle clamps clamp the two end positions of the middle straight line section according to the determined size and the length of the middle straight line section of the coil and keep the two end positions of the middle straight line section stationary.
3. The method for forming the single-sided coil of the high-power motor as claimed in claim 1, wherein the method comprises the following steps: the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially, and meanwhile, the power driving mechanism also drives the two end clamps at the two ends to move horizontally.
4. The method for forming the single-sided coil of the high-power motor as claimed in claim 3, wherein: a top arc mechanism ensuring the shape is arranged between the end clamp and the middle clamp, and the top arc mechanism also rotates around the axis; the power driving mechanism drives the swinging mechanism to drive the two end clamps at the two ends to swing circumferentially and move left and right, the power driving mechanism drives the arc pushing mechanism arranged outside the linear bar-shaped raw material to swing circumferentially and move left and right similarly, the arc pushing mechanism limits the deformation of the wire from the lower part of the linear bar-shaped raw material, and finally the part from the clamping position of the middle two middle clamps to the clamping position of the two end clamps of the coil of the high-power motor forms the single-side coil of the high-power motor with the spiral arc section.
5. The method for forming the single-sided coil of the high-power motor as claimed in claim 3, wherein: the swing mechanism and the arc-ejecting mechanism rotate around the same axis, the radius can be adjusted, and the swing angle of the swing mechanism is controlled by a PLC, so that the length and the helix angle of the spiral arc section are controlled.
6. The method for forming the single-sided coil of the high-power motor as claimed in claim 3, wherein: the movement of the arc ejection mechanism is driven by a set of equal-proportion transmission mechanism no matter the initial position of the high-power motor coil in the forming process or the forming process, the arc ejection mechanism is controlled to be always positioned in the middle position of the swinging mechanism and the fixing mechanism by the equal-proportion transmission mechanism, the movement amount and the movement speed of the arc ejection mechanism in the forming process are ensured to be half of those of the swinging mechanism, so that interference can be avoided, and the arc ejection mechanism is always positioned in the forming favorable position.
7. The method for forming the single-sided coil of the high-power motor as claimed in claim 1, wherein the method comprises the following steps: a limiting mechanism is arranged on the outer side of the swinging mechanism, and the horizontal movement of the swinging mechanism is limited by the limiting mechanism; the limiting mechanism limits the swing mechanism to move after a certain distance in the horizontal direction in the swing process, and continues to swing to tighten the motor coil and attach the arc-ejecting mechanism to form a required spiral line segment.
8. The method for forming the single-sided coil of the high-power motor according to any one of claims 1 to 7, wherein: the forming mode of the high-power motor coil is carried out according to the following steps:
1) Step 1: and (3) adjusting the positions of all mechanisms:
loosening a clamping device formed by four clamps on the equipment, putting a linear bar-shaped raw material into the clamping device for clamping, adjusting the horizontal positions of a fixing mechanism, an arc ejection mechanism, a swinging mechanism and a limiting mechanism according to a high-power motor coil, adjusting the specific positions according to the product requirement, and locking the fixing mechanism and the limiting mechanism by using a locking piece after the position adjustment;
2) Step 2: and (3) forming a circular arc section of a coil spiral line:
two ends of a coil spiral line circular arc section made of a linear bar-shaped raw material are respectively provided with a section of linear part, the two sections of linear parts are respectively clamped by a fixing mechanism and a clamping device on a swinging mechanism, the clamping device on the swinging mechanism is driven by power to perform circumferential swinging, the coil starts to deform, the swinging mechanism 3 is driven to move left and right in the horizontal direction, and meanwhile, a top arc mechanism is driven to perform circumferential swinging and left and right movement, and finally, the coil forms a section of spiral line circular arc section due to the limitation of the top arc mechanism 2;
3) Step 3: the mechanisms return to the original positions:
loosening the clamping device, taking down the formed coil, and returning the swing mechanism and the arc ejection mechanism to the initial positions through the driving force, so that the arc ejection mechanism is always positioned at the intermediate positions of the swing mechanism and the fixing mechanism.
9. The utility model provides a unilateral coil forming device of high-power motor which characterized in that: comprises a fixing mechanism; an arc ejection mechanism; a swinging mechanism; four parts of the limiting mechanism; the fixing mechanism is arranged and fixed on a fixing support of the frame, but can transversely move along a guide rail on the fixing support, and the distance between the two fixing mechanisms is adjusted so as to meet the requirements of different high-power motor coil lengths; the arc-ejecting mechanism and the swinging mechanism are also sleeved on the guide rail extension section on the fixed bracket and can swing around the guide rail in a revolving way; the limiting mechanism is arranged on the outer side of the swinging mechanism and used for limiting the transverse position of the swinging mechanism according to the length of the coil of the high-power motor; the swing mechanism and the arc ejection mechanism rotate around the same axis, the radius can be adjusted, and the swing angle of the swing mechanism is controlled by the PLC, so that the length and the helix angle of the spiral arc section are controlled.
CN202010832060.5A 2020-08-18 2020-08-18 Method and device for forming single-side coil of high-power motor Active CN112018978B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06225503A (en) * 1993-01-26 1994-08-12 Fuji Electric Co Ltd Automatic method of forming half-bar coil
CN1283890A (en) * 2000-09-11 2001-02-14 铁道部株洲电力机车研究所 Automatic stretching technology and equipment for shaping frame-type windings of stator
CN101056023A (en) * 2007-05-29 2007-10-17 株洲南车电机股份有限公司 Motor coil expansion method and full servo digital control motor coil expander
CN109450196A (en) * 2018-12-21 2019-03-08 株洲南方机电制造有限公司 End is the coil molding method and system and device of circular arc and straight line bevel
CN109618563A (en) * 2017-08-04 2019-04-12 小田原机械工程株式会社 The manufacturing device of coil segment forming device, coil segment manufacturing process and rotating electric machine
CN210780463U (en) * 2019-09-25 2020-06-16 株洲南方机电制造有限公司 Motor coil linear clamp assembly for taping machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06225503A (en) * 1993-01-26 1994-08-12 Fuji Electric Co Ltd Automatic method of forming half-bar coil
CN1283890A (en) * 2000-09-11 2001-02-14 铁道部株洲电力机车研究所 Automatic stretching technology and equipment for shaping frame-type windings of stator
CN101056023A (en) * 2007-05-29 2007-10-17 株洲南车电机股份有限公司 Motor coil expansion method and full servo digital control motor coil expander
CN109618563A (en) * 2017-08-04 2019-04-12 小田原机械工程株式会社 The manufacturing device of coil segment forming device, coil segment manufacturing process and rotating electric machine
CN109450196A (en) * 2018-12-21 2019-03-08 株洲南方机电制造有限公司 End is the coil molding method and system and device of circular arc and straight line bevel
CN210780463U (en) * 2019-09-25 2020-06-16 株洲南方机电制造有限公司 Motor coil linear clamp assembly for taping machine

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