JP6629264B2 - Coil forming system and coil forming method - Google Patents

Description

  The present invention relates to a coil forming system and a coil forming method for forming a coil of a rotating electric machine.

  In a rotating electric machine such as a generator, a stator slot is formed on an inner surface of a stator core, and a coil conductor passing through the stator slot is positioned outside the stator core in the direction of the rotating shaft (hereinafter, “axis”) of the rotating electric machine. (Hereinafter referred to as “axially outside the stator core”), the stator coil is formed by coupling with another coil conductor that penetrates another stator slot.

  The coil conductor disposed outside the stator core in the axial direction has a shape along the circumferential direction, that is, an arc shape extending in the circumferential direction while keeping a radial distance from the shaft center. For this reason, the coil conductor disposed axially outside the stator core is subjected to bending processing until the coil conductor has a finished shape (see Patent Document 1).

Japanese Patent No. 4131478

  Bending of a coil conductor arranged on the outer side in the axial direction of the stator core is often performed by a human being hitting with a hammer while making the coil conductor follow a forming die. For this reason, the burden on the worker is large, and there is a possibility that inconsistency due to human error or variation in quality due to skill level may occur, and it is necessary to solve these problems.

  An object of the present invention is to improve quality in bending a coil conductor.

  In order to achieve the above-mentioned object, the present invention is a coil forming system for forming a coil provided in a rotating electric machine, comprising: a load applying mechanism for applying a load to a coil conductor; and measuring a shape of the coil conductor. A measuring device, and an arithmetic and control unit that receives an output from the measuring device and outputs a command signal to the load applying mechanism, wherein the load applying mechanism includes a restraining mechanism that restrains the coil conductor; A bending mechanism for statically applying a bending load to the conductor and a hammering mechanism for applying an impact load to the coil conductor are provided.

Further, the present invention provides a load applying mechanism for applying a load to the coil conductor, a measuring device for measuring the shape of the coil conductor, and receiving an output from the measuring device and outputting a command signal to the load applying mechanism. An arithmetic and control unit, wherein the load applying mechanism includes a restraining mechanism for restraining the coil conductor, a bending mechanism for statically applying a bending load to the coil conductor, and a hammer for applying an impact load to the coil conductor. A ring mechanism, and wherein the arithmetic and control unit is configured to read an external command content that specifies an external command content that specifies a shape processing procedure of the coil conductor, and an external command read by the shape processing procedure reading unit. A shape processing procedure storage unit for storing, a target value output unit for sequentially reading and outputting a processing target value of the coil conductor stored in the shape processing procedure storage unit; A subtraction unit that outputs a deviation signal by subtracting a feedback value from the measurement device from a processing target value from an output unit, and a drive control that receives an output value from the subtraction unit and outputs a command signal to the load mechanism. and parts, with a coil-forming system having, a coil forming process for shaping the coil provided in the rotary electric machine, and reading steps of the shaping procedure reading unit reads the shaping procedure, the a storage step of shaping the storage unit stores the shaping procedure, the traveling control unit is the procedure steps of: reading the following from the shape processing memory section, the target value output section is read out by the procedure reading step the machining and the target value output step of outputting a target value, the machining target value the drive control unit is the finger so that in the procedure The drive signal output step of outputting a signal, a working step of the load bearing mechanism is applied to the coil conductor in accordance with the command signal, the subtraction unit, the measurement signal of the target portion of the coil conductor from the measuring device and It is characterized by having a calculation step of calculating a deviation from a processing target value, and a determination step in which the progress control unit determines whether or not the deviation is within a determination criterion.

  ADVANTAGE OF THE INVENTION According to this invention, in the bending process of a coil conductor, quality can be improved.

It is an elevation sectional view along the axial direction which shows the composition of the rotary electric machine to which the coil forming method concerning an embodiment is applied. It is a perspective view showing the stator slot formed in the stator core of the rotating electrical machine to which the coil forming method concerning an embodiment is applied, and the stator coil conductor penetrating therethrough. It is a side view showing the composition of the coil forming system concerning an embodiment. It is a block diagram showing composition of an arithmetic and control unit of a coil forming system concerning an embodiment. FIG. 7 is a cross-sectional view taken along line VV of FIG. 6 illustrating a configuration of a bending mechanism of the coil forming system according to the embodiment. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5 illustrating a configuration of a bending mechanism of the coil forming system according to the embodiment. It is a side view along the longitudinal direction of the stator coil conductor which shows the structure of the hammering mechanism of the coil forming system concerning embodiment. It is a flowchart which shows the whole procedure of the coil forming method which concerns on embodiment. It is a flowchart which shows the detailed procedure of the load application step of the coil forming method which concerns on embodiment.

  Hereinafter, a coil forming system and a coil forming method for a rotating electrical machine according to an embodiment of the present invention will be described with reference to the drawings. Here, the same or similar parts are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a cross-sectional view along the axial direction showing a configuration of a rotating electric machine to which a coil forming method according to an embodiment is applied. The rotating electric machine 1 includes a rotor 10, a stator 20, a frame 40, and a cooler 51.

  The rotor 10 has a rotor shaft 11 extending horizontally in the direction of the rotation axis, and a rotor core 12 provided radially outside the rotor shaft 11. Inner fans 15 are attached to the rotor shaft 11 on both sides of the rotor core 12 in the axial direction.

  The stator 20 rotates a cylindrical stator core 21 provided radially outside the rotor core 12 and a stator slot 21 a (FIG. 2) formed near a radially inner surface of the stator core 21. It has a stator coil 22 penetrating in the axial direction.

  The frame 40 surrounds the stator 20 and the rotor core 12 so as to accommodate the radial outside thereof. Bearing brackets 45 are provided on both sides of the frame 40 in the axial direction, respectively, and fixedly support the bearings 30, respectively. A cooler 51 is provided above the frame 40.

  The cooler 51 is housed in a cooler cover 52. The cooler 51 has a plurality of cooling pipes 53. A cooling medium supplied from the outside, such as cooling water, flows through the cooling pipe 53.

  The frame 40, the two bearing brackets 45, and the cooler cover 52 together form a closed space 40a. The space in the frame 40 and the space in the cooler cover 52 communicate with each other through one cooler inlet opening 61 and two cooler outlet openings 62.

  The inside of the closed space 40a is filled with a cooling gas such as air. The cooling gas is driven by the two inner fans 15, respectively, and circulates in the closed space 40a. The cooling gas driven by the inner fan 15 passes while cooling the rotor core 12 and the stator 20, and then flows into the cooler 51 via the cooler inlet opening 61.

  The cooling gas flowing into the cooler 51 passes outside the cooling pipe 53 while being cooled by the cooling medium inside the cooling pipe 53. Thereafter, the direction is changed and flows into the frame 40 via the cooler outlet opening 62, and is again driven by the two inner fans 15, respectively.

  FIG. 2 is a perspective view showing a stator slot formed in a stator core of a rotating electric machine to which the coil forming method according to the embodiment is applied, and a stator coil conductor penetrating therethrough. The stator coil conductors 23 are usually arranged in one stator slot 21a, for example, a total of two upper and lower openings, but one upper stator and one lower stator slot 21a are arranged in one stator slot 21a. Only the display is shown, and other displays are omitted.

  The stator core 21 usually has a laminated plate 21c formed by laminating many electromagnetic steel plates such as silicon steel plates punched into a disk shape having a through hole in the center. A plurality of stator slots 21a are formed radially inward of the stator core 21. The plurality of stator slots 21a are arranged at intervals in the circumferential direction, extend in the axial direction, and pass through the stator core 21. As a result, a plurality of stator teeth 21b extending in the axial direction are formed at intervals in the circumferential direction.

  The stator coil 22 (FIG. 1) has a plurality of stator coil conductors 23. In each stator coil conductor 23, a plurality of conductors are bundled, and an insulating tape is wound around the outside thereof. The cross-sectional shape of the stator coil conductor 23 is rectangular. That is, the stator coil conductor 23 has two wider side surfaces 23a and two narrower side surfaces 23b.

  Each stator coil conductor 23 passes through each stator slot 21a. On the outside of the stator core 21 in the axial direction, the stator coil conductors 23 are, for example, perpendicular to the axial direction for coupling between the stator coil conductors 23 for forming the stator coil 22 or coupling with the outside. It extends concentrically with the stator core 21 in the plane.

  Specifically, the stator coil conductor 23 is bent on the outer side in the axial direction so that the two wider side surfaces 23a are turned 90 degrees out of the plane. Next, the stator coil conductor 23 is bent so that the surface of the narrower side surface 23b is bent out of plane, for example, concentrically with the stator core 21.

  In FIG. 2, one axial direction outside of the stator core 21 is shown, but the other axial direction outside of the stator core 21 similarly extends concentrically in a plane perpendicular to the axial direction. ing. Further, when the stator coil conductor 23 is projected in the axial direction from one axial outside, the bending direction is such that both sides are in the same direction. In other words, when viewed from the outside in the respective axial directions, one is in a clockwise direction and the other is in a counterclockwise direction.

  FIG. 3 is a side view showing the configuration of the coil forming system according to the embodiment. The coil forming system 100 forms the stator coil conductor 23 so as to be concentric on the outside of the stator core 21 in the axial direction, for example, in a plane perpendicular to the axial direction.

  The coil forming system 100 has an arithmetic and control unit 110, a measuring unit 120, a base 201, and a load applying mechanism 200 for actually applying a load to the stator coil conductor 23. Further, the load applying mechanism 200 includes a restraining mechanism 210, a movement driving unit 220, a bending mechanism 230, and a hammering mechanism 240.

  Measuring device 120 measures the state of bending of stator coil conductor 23. The measuring device 120 is, for example, a contact type displacement meter, a laser type displacement meter, a three-dimensional camera, or the like.

  The restraining mechanism 210 restrains both sides in the axial direction of the linear portion housed in the stator slot 21a of the stator coil conductor 23.

  The bending mechanism 230 controls the stator coil conductor 23 so that an axially outer portion of the stator core 21 has a predetermined three-dimensional shape such as a concentric circle in a plane perpendicular to the axial direction. The stator coil conductor 23 is bent by applying a static load to the stator coil conductor 23. The hammering mechanism 240 has a protection member or the like so as not to damage the stator coil conductor 23, and performs bending of the stator coil conductor 23 by hammering.

  The movement driving unit 220 is mounted on the base 201, supports the restraining mechanism 210, the bending mechanism 230, and the hammering mechanism 240, and drives the movement. The movement drive unit 220 includes a restraint unit movement drive mechanism 221 that moves on the base 201 and a support unit 221 a that is supported by the restraint unit movement drive mechanism 221 and supports the restraint mechanism 210. Further, the movement drive unit 220 includes a bending load unit movement drive mechanism 222 that moves on the base 201 and a support unit 222a that is supported by the bending load unit movement drive mechanism 222 and that supports the bending mechanism 230 and the hammering mechanism 240. Note that the hammering mechanism 240 may be independently provided with a moving drive portion.

  The arithmetic and control unit 110 receives a signal from the measuring device 120. In addition, the arithmetic and control unit 110 issues a command signal to the restraining mechanism 210, the movement driving unit 220, the bending mechanism 230, and the hammering mechanism 240, and also outputs the command signal to the restraining mechanism 210, the movement driving unit 220, the bending mechanism 230, and the hammering mechanism. A signal relating to the operation result regarding the operation content of 240 is received from each.

  FIG. 4 is a block diagram illustrating a configuration of an arithmetic and control unit of the coil forming system according to the embodiment. The arithmetic and control unit 110 is, for example, a computer system. The arithmetic and control unit 110 includes a shape processing procedure reading unit 111, a shape processing procedure storage unit 112, a progress control unit 113, a target value output unit 114, a subtraction unit 115, and a drive control unit 116.

  The shape processing procedure reading unit 111 is an input device that reads an external command content for specifying a shape processing procedure of the stator coil conductor 23. The shape processing procedure storage unit 112 stores the external command read by the shape processing procedure reading unit 111.

  The progress control unit 113 sequentially reads out the shape processing procedure stored in the shape processing procedure storage unit 112 and outputs a progress command to the arithmetic and control unit 110, thereby controlling the progress of the shape processing of the stator coil conductor 23. I do.

  Specifically, the progress control unit 113 outputs a progress command to the target value output unit 114, and outputs a specific command in each step to the drive control unit 116. The content of the command is stored in the shape processing procedure storage unit 112 in a form corresponding to the step.

  The target value output unit 114 sequentially reads out and outputs each target value stored in the shape processing procedure storage unit 112 based on a progress command from the progress control unit 113. The target value output by the target value output unit 114 is a processing target of the stator coil conductor 23, and specifically includes a deformation dimension, a bending angle, and the like.

  The subtraction unit 115 subtracts the value of the measurement result from the measurement device 120, which is a feedback signal, from the output value of the target value output unit 114, and outputs the result as a deviation signal to the progress control unit 113 and the drive control unit 116. I do.

  The drive control unit 116 receives the progress command from the progress control unit 113 and the output value from the subtraction unit 115 as inputs, and receives each element of the load load mechanism 200, that is, the restraint mechanism 210, the movement drive unit 220, the bending mechanism 230, and A command signal is output to each of the hammering mechanisms 240 as appropriate.

  Here, the command signal includes, for example, the following. The command signal to the restraint mechanism 210 includes the presence or absence of restraint of the stator coil conductor 23, a restraining force at the time of restraint, and the like. The command signal to the movement driving unit 220 includes, for example, a start of movement, a movement distance, and the like. The command signal to the bending mechanism 230 includes the start of operation of each part, displacement, bending angle, and the like. The command signal to the hammering mechanism 240 includes, for example, the start of hammering, the number of times of hammering of the hammer each time it is supported, or the grade of the strength of the hammering classified.

  The contents of these command signals are stored in the shape processing procedure storage unit 112 in a form corresponding to each step, and the progress control unit 113 sequentially reads out and outputs to the drive control unit 116 in accordance with the progress of the step. . Note that the drive control unit 116 may directly read out from the shape processing procedure storage unit 112 in accordance with a progress command from the progress control unit 113 without going through the progress control unit 113.

  The drive control unit 116 outputs a command signal to each element of the load loading mechanism 200 as described above. The output operation determines whether the deviation signal from the subtraction unit 115 is within the determination value. Judgment is performed, and if within the judgment value, the output operation is continued, and if it is within the judgment standard, the output operation is stopped.

  FIG. 5 is a cross-sectional view taken along line VV of FIG. 6 illustrating a configuration of a bending mechanism of the coil forming system according to the embodiment. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5 illustrating a configuration of a bending mechanism of the coil forming system according to the embodiment.

  The bending mechanism 230 has a first support 231, a second support 232, a third support 233, a fourth support 234, and a support 222 a that supports the fourth support 234.

  The first support 231, the second support 232, the third support 233, and the fourth support 234 are each cylindrical and coaxial with each other in a reference state.

  The first support portion 231 is driven by the first support portion drive portion 231a so as to be inclined from the direction of the central axis in the reference state, and is supported by the first support portion drive portion 231a. The first support portion 231 has a disk shape, and has a thread formed on the outer periphery. Specifically, for example, the first support portion 231 and the first support portion drive portion 231a are screwed, and each has a similar relationship to the rack and the pinion. The rotation axis of the first support unit drive unit 231a is arranged in the direction of the central axis in the reference state, and the first support unit drive unit 231a is supported by the second support unit 232. Although not shown, a fulcrum (not shown) when the direction of the central axis of the first support portion 231 is inclined is also supported by the second support portion 232.

  With the configuration as described above, the direction of the axis of the first support portion 231 can be changed in the first plane on which the first support portion drive portion 231a rotates.

  The second support portion 232 is driven by the second support portion driving portion 232a so as to be inclined from the direction of the axis in the reference state in a direction at 90 degrees with respect to the central axis with respect to the direction in which the first support portion 231 is inclined. And is supported by the second support drive unit 232a. The second support portion 232 is disk-shaped, and has a thread formed on the outer periphery. Specifically, for example, the second support portion 232 and the second support portion drive portion 232a are screwed, and each has a similar relationship to the rack and the pinion. The rotation axis of the second support driving unit 232 a is arranged in the direction of the axis in the reference state, and the second support driving unit 232 a is supported by the third support 233. Although not shown, a fulcrum (not shown) when the direction of the axis of the second support portion 232 is inclined is also supported by the third support portion 233.

  With the above configuration, the direction of the axis of the second support portion 232 can be changed in the second plane in which the second support portion drive portion 232a rotates. Here, the second plane is orthogonal to the first plane.

  The third support portion 233 is driven by the third support portion drive portion 233a so as to rotate around the central axis, and is supported by the third support portion drive portion 233a. The third support portion 233 has a disk shape and is formed with a screw. Specifically, for example, the third support portion 233 and the third support portion driving portion 233a are screwed, and each has a relationship similar to a rack and a pinion. The rotation axis of the third support unit drive unit 233a is arranged in a direction perpendicular to the axis in the reference state, and the third support unit drive unit 233a is supported by the fourth support unit 234. The third support drive unit 233a is provided at three locations in the circumferential direction and two locations in the axial direction, respectively, for a total of six locations.

  With the configuration as described above, the angle of the third support portion 233 in the circumferential direction about the center axis thereof can be changed in the plane in which the third support portion drive portion 233a rotates.

  The fourth support portion 234 is fixedly supported by the base 201 via the support portion 222a.

  On the inner surface of the first support portion 231, side restraint rods 235c are provided at two places at 180 degrees from each other in the circumferential direction, and end restraint rods 235d are provided at two places at 180 degrees from each other in the circumferential direction. The restraining rod 235c and the end restraining rod 235d are attached so as to be at 90 degrees to each other. The side restraint rod 235c and the end restraint rod 235d are each formed to be extendable and contractible.

  Each of the two side restraint rods 235c supports a side restraint plate 235a. Each of the two end restriction rods 235d supports an end restriction plate 235b. The two side restraint rods 235c are in a state of being expanded from the contracted state, and the two side restraint plates 235a are pressed against the wider side surfaces 23a on both sides of the stator coil conductor 23. In addition, the two end restriction rods 235d are in a state of being expanded from the contracted state, and the two end restriction plates 235b are pressed against the narrower side surfaces 23b on both sides of the stator coil conductor 23, respectively. Thus, the bending mechanism 230 is formed so as to grip the stator coil conductor 23.

  As described above, the relationship between the first support portion 231 and the first support portion drive portion 231a, the relationship between the second support portion 232 and the second support portion drive portion 232a, and the relationship between the third support portion 233 and the third support portion drive portion 233a are the racks. A case similar to that of the pinion is shown, but other methods such as a method using a lever may be used instead of a gear method as long as a rotation operation or an axial change operation can be realized.

  FIG. 7 is a side view along the longitudinal direction of the stator coil conductor showing the configuration of the hammering mechanism of the coil forming system. The hammering mechanism 240 has a protection plate 246, a hitting portion 244, and a driving portion 241 that drives these.

  The striking portion 244 applies an impact force to the stator coil conductor 23 via the protection plate 246 for bending the stator coil conductor 23. The hitting portion 244 is, for example, a lump of metal and is attached to a hammer support bar 243 connected to the hammer drive shaft 242. The hammer drive shaft 242 is driven to rotate by the drive unit 241.

  The protection plate 246 covers and protects an impact target portion of the stator coil conductor 23 in order to prevent local deformation of a portion of the stator coil conductor 23 to which an impact is applied by the hitting portion 244. The protection plate 246 is a plate made of, for example, an insulating material made of metal or made of Micarta (registered trademark) or Teflon (registered trademark), and is supported by the protection plate support portion 245. The protection plate support 245 is driven and positioned by the drive unit 241.

  When bending the stator coil conductor 23, a bending load is applied to the stator coil conductor 23 by the bending mechanism 230 in a state where the stator coil conductor 23 is restrained by the restraining mechanism 210. Hammering is performed by the ring mechanism 240.

  At the time of hammering, the protection plate 246 is hit along with the striking portion 244 along the stator coil conductor 23 by the protection plate support portion 245. The position of the stator coil conductor 23 along the protection plate 246 is on the opposite side of the restraining mechanism 210 across the bending mechanism 230 in the longitudinal direction.

  The hammering mechanism 240 uses the restraining mechanism 210 and the bending mechanism 230 as support portions to apply an impact to the stator coil conductor 23, and further applies a shock to the stator coil conductor 23 on the side opposite to the side on which the protection plate 246 is covered. It may have a guide that can be placed.

  FIG. 8 is a flowchart showing the entire procedure of the coil forming method according to the embodiment.

  First, the shape processing procedure reading unit 111 reads the set shape processing procedure (step S10). Next, the shape processing procedure storage unit 112 stores the shape processing procedure read by the shape processing procedure reading unit 111 (Step S20).

  Next, the progress control unit 113 reads the next procedure from the shape processing procedure reading unit 111 and outputs the next procedure to the target value output unit 114 (step S30). The target value output unit 114 outputs a target value corresponding to the following procedure (Step S40).

  The subtraction unit 115 outputs a deviation signal obtained by subtracting the feedback signal from the measuring device 120 from the target value output from the target value output unit 114 (Step S50).

  The drive control unit 116 controls each of the load-loading mechanisms 200 such that the feedback signal becomes a target value based on a command from the progress control unit 113 and in accordance with the state of the deviation signal output from the subtraction unit 115. A drive command signal is output to the element (step S60).

  Each element of the load applying mechanism 200 operates based on the drive command signal from the drive control unit 116, and acts on the stator coil conductor 23 (Step S70). FIG. 9 shows the detailed procedure of step S70.

  FIG. 9 is a flowchart illustrating a detailed procedure of a load applying step of the coil forming method according to the embodiment.

  First, the restraining mechanism 210 restrains the linear stator coil conductor 23 (Step S71). Next, the axially outer portion of the constrained portion is gripped by the bending mechanism 230 (step S72).

  Next, forced bending is performed while hitting the stator coil conductor 23 (step S73). That is, the bending mechanism 230 applies a forced bending force to the stator coil conductor 23 in a predetermined direction. Further, the hammering mechanism 240 performs hammering so that the stator coil conductor 23 bends in the direction of forced bending. Therefore, the step of performing the forced bending by the bending mechanism 230 and the step of performing the hammering by the hammering mechanism 240 may be performed before or after. In addition, they may be performed in parallel or alternately.

  When the state of the stator coil conductor 23 reaches a predetermined state, the load is released, and the position and the shape are confirmed (step S74). Here, whether or not the predetermined state has been reached can be determined based on whether or not the deviation that is the output of the subtraction unit 115 is equal to or smaller than a determination value. Release of the load is performed by reducing the side restraint rod 235c and the end restraint rod 235d.

  After the series of operations described above, even in the released state, the progress control unit 113 determines whether or not the deviation that is the output of the subtraction unit 115 is within the determination criterion (step S80). When it is determined that the deviation is not within the determination value (NO in step S80), steps S72 to S80 in step S70 are repeated again.

  If it is determined that the deviation is within the determination standard (step S80: YES), it is determined whether all the procedures have been completed (step S90) (FIG. 8). If it is not determined that all the procedures have been completed (NO in step S90), steps S40 to S90 are repeated. If it is determined that all the procedures have been completed (step S90: YES), the coil forming is completed.

  ADVANTAGE OF THE INVENTION According to this invention, in bending processing of a coil conductor, quality can be improved by implementing processing with reproducibility.

[Other embodiments]
Although the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. For example, in the embodiment, the case of forming the stator coil has been described as an example, but the present invention is not limited to this. The present invention is also applicable to the forming of a coil conductor such as an exciting coil provided in a rotor in the case of a synchronous machine, or the forming of a coil conductor of a rotor coil in the case of a wound-type induction machine.

  Further, the embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... rotary electric machine, 10 ... rotor, 11 ... rotor shaft, 12 ... rotor core, 15 ... inner fan, 20 ... stator, 21 ... stator core, 21a ... stator slot, 21b ... stator teeth, 21c ... Laminated plate, 22 ... stator coil, 23 ... stator coil conductor, 23a ... wide side, 23b ... narrow side, 30 ... bearing, 40 ... frame, 40a ... closed space, 45 ... Bearing bracket, 51 ... cooler, 52 ... cooler cover, 53 ... cooling pipe, 61 ... cooler inlet opening, 62 ... cooler outlet opening, 100 ... coil forming system, 110 ... arithmetic control unit, 111 ... shape processing procedure Reading unit, 112: shape processing procedure storage unit, 113: progress control unit, 114: target value output unit, 115: subtraction unit, 116: drive control unit, 120: measuring device, 200: load applying mechanism, 201 ... 220, a restraining mechanism, 220, a moving drive section, 221, a restraining section moving drive mechanism, 221a, a support section, 222, a bending load section moving drive mechanism, 222a, a support section, 230, a bending mechanism, 231, first Support part, 231a: first support part drive part, 232 ... second support part, 232a ... second support part drive part, 233 ... third support part, 233a ... third support part drive part, 234 ... fourth support part 235a ... side restraint plate, 235b ... end restraint plate, 235c ... side restraint rod, 235d ... end restraint rod, 240 ... hammering mechanism, 241 ... drive unit, 242 ... hammer drive shaft, 243 ... hammer support Rod, 244: hitting portion, 245: protection plate support portion, 246: protection plate

Claims (6)

A coil forming system for forming a coil provided in a rotating electric machine,
A load applying mechanism for applying a load to the coil conductor,
A measuring device for measuring the shape of the coil conductor,
An arithmetic and control unit that receives an output from the measuring device and outputs a command signal to the load applying mechanism,
With
The load applying mechanism,
A restraining mechanism for restraining the coil conductor,
A bending mechanism for statically applying a bending load to the coil conductor,
A hammering mechanism for applying an impact load to the coil conductor,
A coil forming system comprising: The arithmetic and control unit,
A shape processing procedure reading unit that reads an external command content that specifies a shape processing procedure of the coil conductor,
A shape processing procedure storage unit that stores the external command read by the shape processing procedure reading unit,
A target value output unit that sequentially reads and outputs a processing target value of the coil conductor stored in the shape processing procedure storage unit,
A subtraction unit that outputs a deviation signal by subtracting a feedback value from the measurement device from a processing target value from the target value output unit,
A drive control unit that receives an output value from the subtraction unit as an input, and outputs a command signal to the load applying mechanism,
The coil forming system according to claim 1, comprising: The hammering mechanism,
For a bending process of the coil conductor, a striking unit that applies an impact force to the coil conductor,
In order to prevent local deformation of a portion of the coil conductor to which an impact is applied by the hitting portion, a protection plate that covers and protects an impact target portion of the coil conductor,
A driving unit that drives the hitting unit and the protection plate,
The coil forming system according to claim 1, further comprising: The bending mechanism includes:
Two side restraint plates and two end restraint plates for restraining each of the four side surfaces of the coil conductor;
A first cylindrical supporting portion that supports the side restraint plate and the end restraint plate;
A second support portion disposed coaxially with the first support portion and supporting the direction of the axis of the first support portion in a first plane so as to be changeable;
A third support portion disposed coaxially with the second support portion and supporting the direction of the axis of the second support portion in a second plane so as to be changeable;
A fourth support portion disposed coaxially with the third support portion and supporting the third support portion so as to be able to change a circumferential angle around the axis thereof;
The coil forming system according to any one of claims 1 to 3, further comprising: A load applying mechanism that applies a load to the coil conductor, a measuring device that measures the shape of the coil conductor, and an arithmetic control device that receives an output from the measuring device and outputs a command signal to the load applying mechanism. The load applying mechanism includes a restraining mechanism for restraining the coil conductor, a bending mechanism for statically applying a bending load to the coil conductor, and a hammering mechanism for applying an impact load to the coil conductor. The arithmetic and control unit includes a shape processing procedure reading unit that reads an external command content that specifies a shape processing procedure of the coil conductor, and a shape processing procedure storage that stores the external command read by the shape processing procedure reading unit. A target value output unit for sequentially reading and outputting a processing target value of the coil conductor stored in the shape processing procedure storage unit; and a processing unit from the target value output unit. A subtraction unit that outputs a deviation signal by subtracting a feedback value from the measurement device from a target value, and a drive control unit that receives an output value from the subtraction unit and outputs a command signal to the load mechanism. with coil-forming system, a coil forming process for shaping the coil provided in the rotary electric machine,
A reading step of the shaping procedure reading unit reads the shaping procedure,
A storage step of the shaping memory unit stores said shape processing procedure,
A procedure reading step in which the progress control unit reads the next procedure from the shape processing storage unit,
And the target value output step of outputting the processed target value in steps the target value output section is read out by the procedure reading step,
A drive signal output step in which the drive control unit so that the processing target value to output the command signal,
A working step of the load bearing mechanism is applied to the coil conductor in accordance with the command signal,
The subtraction unit, a calculation step of calculating a deviation between said forming target value and the measurement signal of the target portion of the coil conductor from the measuring device,
A determination step in which the progress control unit determines whether the deviation is within a determination criterion,
A coil forming method comprising: The operation step includes:
A restraining step of the restraining mechanism restrains the coil conductor,
After the restraining step, the load application step bending the bending mechanism is loaded statically bending loads on the coil conductor,
After the restraining step, the impact load step the hammering mechanism is loaded with a shock load to the coil conductor,
The coil forming method according to claim 5, comprising:

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