Stator coil shaper

Abstract

The utility model relates to motor stator production technical field provides a kind of stator coil shaping machine, it include: rack, workpiece positioning device, shaping device;Workpiece positioning device includes stand, vertical telescopic drive component, briquet, base, first support clamping block, second support clamping block, clamping interval adjusting component;Shaping device includes transverse telescopic drive component, support, spinning shaping component, support is passed through transverse telescopic drive component with rack, spinning shaping component is installed in support;Spinning shaping component includes inner spinning wheel, outer spinning wheel, inner position adjusting block, outer position adjusting block, object plate, pivot, shaping rotary driver.Advantage: before shaping to different inner and outer diameter size stator coil, the interval of first support clamping block and second support clamping block can be adjusted, inner spinning wheel pressurizes in the inside of coil, outer spinning wheel pressurizes in the outside of coil, conveniently shaping to coil, without manual die change operation.

Description

Technical Field

[0001] This utility model relates to the field of motor stator manufacturing technology, specifically to a stator coil shaping machine. Background Technology

[0002] The stator is the stationary part of the motor; it consists of the stator core and the coils wound around it. After the coils are wound, the exposed coils at both ends of the stator core are relatively loose, which can cause assembly difficulties when fitting the stator into the motor housing. Therefore, it is necessary to shape the exposed coils at both ends of the stator core to press them firmly, making the stator easier to fit into the motor housing.

[0003] The invention patent document CN111082610B discloses a stator coil shaping machine that facilitates mold changing. Specifically, it discloses that the upper and lower shaping molds in the shaping machine can be disassembled and installed in a sliding manner. During disassembly, only a few fixing screws need to be removed. More importantly, the drive input end of the shaping mold does not require other fixing to the external drive device (hydraulic cylinder). During installation, it is only necessary to ensure that the shaping mold is in place to achieve automatic connection, reducing the steps of installation or disassembly, thus facilitating mold changing. Such a shaping machine can be adapted to stator coils of different specifications by changing molds, thereby reducing the production cost of stator coils.

[0004] The drawback of this patent document is that when dealing with stator coils of different inner and outer diameters, it is necessary to first replace the upper and lower forming dies with compliant dimensions. However, manual die-changing is cumbersome and labor-intensive.

[0005] Therefore, in order to conveniently shape stator coils with different inner and outer diameters without manual mold changing, there is an urgent need in this technical field for a stator coil shaping machine. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a stator coil shaping machine.

[0007] The technical solution of this utility model is implemented as follows: a stator coil shaping machine, comprising: Machine frame, workpiece positioning device, forming device; The workpiece positioning device includes a column, a vertical telescopic drive assembly, a pressure block, a base, a first support clamp, a second support clamp, and a clamping distance adjustment assembly. The bottom of the column is fixedly connected to the frame, and the top of the column is connected to the pressure block through the vertical telescopic drive assembly. The base is fixedly connected to the frame, and the first and second support clamps are both connected to the base through the clamping distance adjustment assembly. The first and second support clamps are both located below the pressure block. The shaping device includes a lateral telescopic drive assembly, a support, and a spinning shaping assembly. The support is connected to the frame via the lateral telescopic drive assembly, and the spinning shaping assembly is mounted on the support. The spinning and shaping assembly includes an inner spinning roller, an outer spinning roller, an inner adjusting block, an outer adjusting block, a support plate, a rotating shaft, and a shaping rotary driver. The center of the inner spinning roller is rotatably connected to the support shaft of the inner adjusting block, and the inner adjusting block is radially slidably connected to the front side of the support plate. The center of the outer spinning roller is rotatably connected to the support shaft of the outer adjusting block, and the outer adjusting block is radially slidably connected to the front side of the support plate. The back side of the support plate is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the support via the shaping rotary driver.

[0008] Furthermore, the spinning and shaping assembly also includes a guide rail. The support plate is divided into an arc-shaped plate and a rectangular plate. The center of the back side of the arc-shaped plate is fixedly connected to one end of the rotating shaft. One end of the guide rail is fixedly connected to the front side of the arc-shaped plate, and the other end of the guide rail is fixedly connected to the front side of the rectangular plate. The inner adjustment block and the outer adjustment block are both slidably connected to the guide rail. The inner adjustment block is located on the arc-shaped plate, and the outer adjustment block is located on the rectangular plate.

[0009] Furthermore, the spinning and shaping assembly also includes a first stepper motor, a second stepper motor, a first screw, and a second screw. The body of the first stepper motor is fixedly connected to the front side of the arc-shaped plate, and the output shaft of the first stepper motor is drivenly connected to the first screw. The inner adjusting block is provided with a first screw hole, which is screwed into the first screw. The body of the second stepper motor is fixedly connected to the front side of the rectangular plate, and the output shaft of the second stepper motor is drivenly connected to the second screw. The outer adjusting block is provided with a second screw hole, which is screwed into the second screw.

[0010] Furthermore, the spinning and shaping assembly also includes a limiting ring plate, a guide ring plate, a guide wheel, and a connecting rod. One end of the connecting rod is fixedly connected to the front side of the arc-shaped plate, and the other end of the connecting rod is rotatably connected to the center of the guide wheel. The outer circumferential surface of the guide ring plate has an annular groove, and the guide wheel is rolled in connection with the annular groove. There are multiple connecting rods and guide wheels, which are arranged at intervals around the center of the guide ring plate. The limiting ring plate is fixedly connected to the guide ring plate. The center of the limiting ring plate, the center of the guide ring plate, and the center of the arc-shaped plate are all on the same axis. The support shaft of the inner adjusting block passes through the central through hole of the guide ring plate and the central through hole of the limiting ring plate.

[0011] Furthermore, the shaping device also includes a pressure shaping component and a corner drive component. The support is divided into an upper support and a lower support. The upper support and the lower support are connected by the corner drive component. The pressure shaping component and the spinning shaping component are respectively arranged on different sides of the upper support. The lower support is connected to the frame by the lateral telescopic drive component.

[0012] Furthermore, the included angle between the expansion forming component and the spinning forming component is 90°.

[0013] Furthermore, the vertical telescopic drive assembly is a telescopic cylinder, the cylinder body of which is fixedly connected to the top of the column, the telescopic rod of which is fixedly connected to the top of the pressure block, and the bottom of the pressure block has a V-shaped opening.

[0014] Furthermore, the clamping spacing adjustment assembly includes a first servo motor, a spur screw, and a reverse screw. The body of the first servo motor is fixedly connected to the base. The output shaft of the first servo motor is drivenly connected to one end of the spur screw. The other end of the spur screw is aligned with and fixedly connected to one end of the reverse screw. The other end of the reverse screw is connected to the base via a bearing. The bottom of the first support clamp is provided with a first screw hole, which is screwed into the spur screw. The bottom of the second support clamp is provided with a second screw hole, which is screwed into the reverse screw.

[0015] Furthermore, the two shaping devices are located to the left and right of the workpiece positioning device, respectively.

[0016] Compared with the prior art, the beneficial effects or advantages of this utility model are as follows: 1. Before shaping stator coils with different inner and outer diameters, the distance between the first and second support clamps of the workpiece positioning device can be adjusted. The first and second support clamps can stably hold the stator core. The pressure block then presses down on the stator core. The spinning shaping component of the shaping device is close to the exposed coil part of the stator core. The inner spinning pressure roller moves from the inside to the outside and applies pressure to the inner side of the coil, while the outer spinning pressure roller moves from the outside to the inside and applies pressure to the outer side of the coil. The inner and outer spinning pressure rollers then roll along the coil in a specified arc direction. The coil is evenly shaped by force, and the coil is quickly pressed. This facilitates the shaping of the coil without the need for manual mold changing, reducing manual labor intensity and improving shaping efficiency. The stator after coil shaping is easy to assemble into the housing.

[0017] 2. The center of the limiting ring plate is aligned with the center of the stator core and is on the same axis. The limiting ring plate is used to abut against the coil exposed from the stator core. The guide wheel cooperates with the guide ring plate to improve the stability of the inner and outer rotating pressure rollers rolling along the coil in the specified arc direction.

[0018] 3. The spinning forming component can be used for rough forming of the coil, and the expansion forming component can be used for fine forming of the coil. The spinning forming component first performs rough forming of the coil, and then the corner drive component switches the positions of the spinning forming component and the expansion forming component. The expansion forming component then performs fine forming of the coil, and the coil is compacted and shaped by the internal expansion and external contraction method. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional schematic diagram of the structure of a stator coil shaping machine according to this utility model.

[0021] Figure 2 This is a schematic planar front view of the structure of a stator coil shaping machine according to this utility model.

[0022] Figure 3 yes Figure 2 Top view.

[0023] Figure 4 yes Figure 2 The left view.

[0024] Figure 5 yes Figure 3 Enlarged view of the spinning and shaping component.

[0025] Figure 6 This is a schematic diagram of the present invention, showing the inner rotating pressure wheel inside the coil and the outer rotating pressure wheel outside the coil.

[0026] Figure 7This is a schematic diagram illustrating how the inner rotating pressure roller moves from the inside to the outside and presses against the inner side of the coil, while the outer rotating pressure roller moves from the outside to the inside and presses against the outer side of the coil. Figure 1 .

[0027] Figure 8 This is a schematic diagram of the inner and outer rotating pressure rollers of this utility model rolling along the coil in a specified arc direction.

[0028] Figure 9 This is a schematic diagram illustrating how the inner rotating pressure roller moves from the inside to the outside and presses against the inner side of the coil, while the outer rotating pressure roller moves from the outside to the inside and presses against the outer side of the coil. Figure 2 .

[0029] Figure 10 This is a schematic diagram of the internal structure of the pressure-expanding shaping component of this utility model.

[0030] Figure 11 This is a three-dimensional schematic diagram of the workpiece positioning device of this utility model.

[0031] Figure 12 This is a three-dimensional schematic diagram of the structure of the spinning and shaping component of this utility model.

[0032] Reference numerals: Frame 1; Workpiece positioning device 2; Column 21; Vertical telescopic drive assembly 22; Pressure block 23; Base 24; First support clamp 25; Second support clamp 26; Clamping gap adjustment assembly 27; Servo motor 271; Bearing 272; Shaping device 3; Lateral telescopic drive assembly 31; Support 32; Spin forming assembly 33; Inner spin forming roller 331; Outer spin forming roller 332; Inner adjusting block 333; Outer adjusting block 334; Support plate 335; Arc-shaped plate 3351; Rectangular plate 3352; Rotating shaft 336; Shaping rotary driver 337; Guide rail 338; First stepper motor Motor 339; Second stepper motor 3310; First screw 3311; Second screw 3312; Limiting ring plate 3313; Guide ring plate 3314; Guide wheel 3315; Connecting rod 3316; Cantilever plate 3317; Pressure-expanding shaping assembly 34; Shaping mold housing 341; Outer shrinking block 342; Inner expanding block 343; Outer drive shaft 344; Inner drive shaft 345; Shaping telescopic driver 346; Base plate 347; Shaping angle rotator 348; Compression spring 349; Fixing rod 3410; Sliding structure 3411; Angle drive assembly 35; Stator core 4; Coil 41. Detailed Implementation

[0033] See Figures 1 to 12 The preferred embodiment of this utility model.

[0034] A stator coil shaping machine, comprising: Frame 1, workpiece positioning device 2, shaping device 3; The workpiece positioning device 2 includes a column 21, a vertical telescopic drive assembly 22, a pressure block 23, a base 24, a first support clamp 25, a second support clamp 26, and a clamping distance adjustment assembly 27. The bottom of the column 21 is fixedly connected to the frame 1, and the top of the column 21 is connected to the pressure block 23 through the vertical telescopic drive assembly 22. The base 24 is fixedly connected to the frame 1. The first support clamp 25 and the second support clamp 26 are both connected to the base 24 through the clamping distance adjustment assembly 27. The first support clamp 25 and the second support clamp 26 are both located below the pressure block 23. The shaping device 3 includes a lateral telescopic drive assembly 31, a support 32, and a spinning shaping assembly 33. The support 32 is connected to the frame 1 via the lateral telescopic drive assembly 31, and the spinning shaping assembly 33 is mounted on the support 32. The spinning and shaping assembly 33 includes an inner spinning roller 331, an outer spinning roller 332, an inner adjusting block 333, an outer adjusting block 334, a support plate 335, a rotating shaft 336, and a shaping rotary driver 337. The center of the inner spinning roller 331 is rotatably connected to the support shaft of the inner adjusting block 333. The inner adjusting block 333 is radially slidably connected to the front side of the support plate 335. The center of the outer spinning roller 332 is rotatably connected to the support shaft of the outer adjusting block 334. The outer adjusting block 334 is radially slidably connected to the front side of the support plate 335. The back side of the support plate 335 is fixedly connected to one end of the rotating shaft 336. The other end of the rotating shaft 336 is connected to the support 32 through the shaping rotary driver 337.

[0035] The beneficial effects or advantages of this utility model are as follows: Before shaping stator coils 41 with different inner and outer diameters, the distance between the first support clamp 25 and the second support clamp 26 of the workpiece positioning device 2 can be adjusted, so that the first support clamp 25 and the second support clamp 26 can stably clamp the stator core 4. The pressure block 23 then presses down on the stator core 4. The spinning and shaping component 33 of the shaping device 3 is close to the exposed coil 41 part of the stator core 4. The inner spinning pressure roller 331 moves from the inside to the outside and applies pressure to the inner side of the coil 41, while the outer spinning pressure roller 332 moves from the outside to the inside and applies pressure to the outer side of the coil 41. The inner spinning pressure roller 331 and the outer spinning pressure roller 332 then roll along the coil 41 in a specified arc direction. The coil 41 is uniformly shaped by force, and the coil 41 is quickly pressed, which facilitates the shaping of the coil 41 without the need for manual mold changing, reducing the intensity of manual labor and improving the efficiency of shaping work.

[0036] The vertical telescopic drive assembly 22 is used to move the pressure block 23 up and down; the clamping gap adjustment assembly 27 is used to move the first support clamp 25 and the second support clamp 26 back and forth relative to each other; after adjusting the gap between the first support clamp 25 and the second support clamp 26, the stator core 4 is placed between the first support clamp 25 and the second support clamp 26, and then the pressure block 23 presses down on the stator core 4. The horizontal telescopic drive assembly 31 is used to move the support 32 left and right, and the support 32 moves the spinning and shaping assembly 33 closer to or away from the coil 41 exposed from the stator core 4. The horizontal telescopic drive assembly 31 uses a servo motor 271 and a lead screw to move the support 32 left and right along the slide rail. The shaping rotary driver 337 can be composed of a servo motor 271 and a reducer, and the shaping rotary driver 337 rotates the support plate 335 by a specified angle. The first support clamp 25 and the second support clamp 26 have the same structure; the inclined surface of the first support clamp 25 and the inclined surface of the second support clamp 26 cooperate to support the stator core 4.

[0037] Furthermore, the spinning and shaping assembly 33 also includes a guide rail 338. The support plate 335 is divided into an arc-shaped plate 3351 and a rectangular plate 3352. The center of the back side of the arc-shaped plate 3351 is fixedly connected to one end of the rotating shaft 336. One end of the guide rail 338 is fixedly connected to the front side of the arc-shaped plate 3351, and the other end of the guide rail 338 is fixedly connected to the front side of the rectangular plate 3352. The inner adjusting block 333 and the outer adjusting block 334 are both slidably connected to the guide rail 338. The inner adjusting block 333 is located on the arc-shaped plate 3351, and the outer adjusting block 334 is located on the rectangular plate 3352.

[0038] The beneficial effects of this technical solution are: the guide rail 338 helps improve the movement stability of the inner adjusting block 333 and the outer adjusting block 334. The center line connecting the center of the arc-shaped plate 3351 and the center of the rectangular plate 3352 is used for radial position adjustment of the inner adjusting block 333 and the outer adjusting block 334 on the arc-shaped plate 3352, to accommodate coils 41 with different inner and outer diameters. This allows the inner and outer pressure rollers 331 and 332 to better press the inner and outer sides of the coil 41 respectively.

[0039] Furthermore, the spinning and shaping assembly 33 also includes a first stepper motor 339, a second stepper motor 3310, a first screw 3311, and a second screw 3312. The body of the first stepper motor 339 is fixedly connected to the front side of the arc-shaped plate 3351, and the output shaft of the first stepper motor 339 is drivenly connected to the first screw 3311. The inner adjusting block 333 is provided with a first screw hole, which is screwed into the first screw 3311. The body of the second stepper motor 3310 is fixedly connected to the front side of the rectangular plate 3352, and the output shaft of the second stepper motor 3310 is drivenly connected to the second screw 3312. The outer adjusting block 334 is provided with a second screw hole, which is screwed into the second screw 3312.

[0040] The beneficial effects of this technical solution are as follows: the position of the inner adjusting block 333 on the arc-shaped plate 3351 is automatically adjusted by the cooperation of the first stepper motor 339 and the first screw 3311; the position of the outer adjusting block 334 on the rectangular plate 3352 is automatically adjusted by the cooperation of the second stepper motor 3310 and the second screw 3312; the existing PLC controller controls the operating status of the first stepper motor 339 and the second stepper motor 3310.

[0041] Furthermore, the spinning and shaping assembly 33 also includes a limiting annular plate 3313, a guide annular plate 3314, a guide wheel 3315, and a connecting rod 3316. One end of the connecting rod 3316 is fixedly connected to the front side of the arc-shaped plate 3351, and the other end of the connecting rod 3316 is rotatably connected to the center of the guide wheel 3315. The outer circumferential surface of the guide annular plate 3314 has an annular groove, and the guide wheel 3315 is in rolling connection with the annular groove. The connecting rod 3316 and The guide wheels 3315 are multiple and arranged at intervals around the center of the guide ring plate 3314. The limiting ring plate 3313 is fixedly connected to the guide ring plate 3314. The center of the limiting ring plate 3313, the center of the guide ring plate 3314, and the center of the arc plate 3351 are all on the same axis. The support shaft of the inner adjusting block 333 passes through the central through hole of the guide ring plate 3314 and the central through hole of the limiting ring plate 3313.

[0042] The beneficial effects of this technical solution are as follows: the center of the limiting ring plate 3313 is aligned with the center of the stator core 4 and is on the same axis. The limiting ring plate 3313 is used to abut against the coil 41 exposed from the stator core 4. The guide wheel 3315 cooperates with the guide ring plate 3314 to improve the stability of the inner rotating pressure wheel 331 and the outer rotating pressure wheel 332 rolling along the coil 41 in a specified arc direction.

[0043] Before spinning and shaping, adjustments are required to regulate the distance between the first support clamp 25 and the second support clamp 26. When a stator core 4 of a certain size is placed between the first support clamp 25 and the second support clamp 26, the center of this stator core 4 is aligned with the center of the limiting ring plate 3313 and the center of the arc plate 3351. Then, the pressure block 23 presses down on the stator core 4. During spinning and shaping, the lateral telescopic drive assembly 31 moves the support 32 closer to the stator core 4, and the limiting ring plate 3313 presses against the coil 41 at the end of the stator core 4. At this time, the inner spinning pressure roller 331 is inside the coil 41, and the outer spinning pressure roller 332 is outside the coil 41. Then, the inner spinning pressure roller 331 moves from the inside to the outside and presses against the inner side of the coil 41, while the outer spinning pressure roller 332 moves from the outside to the inside and presses against the outer side of the coil 41. After the coil 41 is spun and shaped, the inner spun roller 331 and the outer spun roller 332 move away from the coil 41, and the limiting ring plate 3313 disengages from the coil 41. Then, the coil 41 of the stator core 4 of the corresponding size is spun and shaped in batches.

[0044] Furthermore, the spinning and shaping assembly 33 also includes a cantilever plate 3317, one end of which is fixedly connected to the limiting ring plate 3313, and the other end of which is fixedly connected to the support 32. The cantilever plate 3317 helps to strengthen the limiting ring plate 3313.

[0045] The shaping rotary actuator 337 rotates the support plate 335 by a specified angle, stopping the rotation before the support shaft of the outer adjusting block 334 touches the cantilever plate 3317. The cantilever plate 3317 is small in size compared to the coil 41, ensuring the quality of the spinning and shaping of the coil 41 by the outer spinning roller 332. Supplementary shaping can be performed using the subsequent pressure-forming assembly 34.

[0046] Furthermore, the shaping device 3 also includes a pressure shaping component 34 and a corner drive component 35. The support 32 is divided into an upper support and a lower support. The upper support and the lower support are connected by the corner drive component 35. The pressure shaping component 34 and the spinning shaping component 33 are respectively arranged on different sides of the upper support. The lower support is connected to the frame 1 by the lateral telescopic drive component 31.

[0047] The beneficial effects of this technical solution are as follows: the spinning and shaping component 33 can be used for rough shaping of the coil, and the expansion and shaping component 34 can be used for fine shaping of the coil. The spinning and shaping component 33 first performs rough shaping of the coil, and then the corner drive component 35 switches the positions of the spinning and shaping component 33 and the expansion and shaping component 34. The expansion and shaping component 34 then performs fine shaping of the coil, compacting and shaping the coil 41 by means of internal expansion and external contraction. The corner drive component 35 is a rotary cylinder.

[0048] Furthermore, the included angle between the expansion shaping component 34 and the spinning shaping component 33 is 90°.

[0049] The beneficial effects of this technical solution are: the expansion and shaping component 34 and the spinning and shaping component 33 switch positions back and forth within a 90° range, performing roughing and finishing of the coil 41 successively. The operation of the expansion and shaping component 34 and the spinning and shaping component 33 is independent of each other and does not interfere with each other.

[0050] The expansion and shaping assembly 34 includes a shaping mold housing 341, an outer shrinking block 342, an inner expanding block 343, an outer drive shaft 344, an inner drive shaft 345, a shaping telescopic actuator 346, a base plate 347, and a shaping angle rotator 348. The shaping mold housing 341 is provided with a circular cavity, a central through hole, and a peripheral through hole. The outer shrinking block 342 is radially slidably connected to the circular cavity, the inner expanding block 343 is radially slidably connected to the circular cavity, the inner drive shaft 345 is slidably connected to the central through hole, the inner drive shaft 345 and the inner expanding block 343 are connected by an inclined sliding structure 3411, and the outer drive shaft 344 is slidably connected to the peripheral through hole. The outer drive shaft 344 is connected to the outer shrink block 342 via a sliding structure. The outer shrink block 342 is connected to the inner expansion block 343 via a compression spring 349. The outer drive shaft 344 is connected to the inner drive shaft 345 via a fixing rod 3410. Multiple outer shrink blocks 342, inner expansion blocks 343, and outer drive shafts 344 are evenly spaced around the central through hole. The inner drive shaft 345 is connected to the base plate 347 via the shaping telescopic actuator 346. The shaping mold housing 341 is fixedly connected to the base plate 347. The base plate 347 is connected to the upper support via the shaping angle rotator 348.

[0051] The beneficial effects of this technical solution are as follows: the distance between the outer shrink block 342 and the inner expansion block 343 is adjustable to accommodate coils 41 with different inner and outer diameters; the position of the outer shrink block 342 is changed by the telescopic movement of the outer drive shaft 344 in conjunction with the oblique sliding structure 3411 and the compression spring 349, and the position of the inner expansion block 343 is changed by the telescopic movement of the inner drive shaft 345 in conjunction with the oblique sliding structure and the compression spring; the outer drive shaft 344 and the inner drive shaft 345 move simultaneously with the aid of the fixing rod 3410. After the coil 41 is exposed towards the stator core 4, the expansion and shaping assembly 34 moves the support 32 and the expansion and shaping assembly 34 closer to the coil 41, and the coil 41 enters between the outer shrink block 342 and the inner expansion block 343. The outer shrink block 342 and the inner expansion block 343 press down on the inner and outer sides of the coil 41 respectively, compacting the coil 41. Then, both the outer shrink block 342 and the inner expansion block 343 detach from the coil 41. The shaping angle rotator 348 rotates the substrate 347 and the shaping mold housing 341 by a specified angle. The outer shrink block 342 and the inner expansion block 343 then press down on the inner and outer sides of the coil 41 respectively, compacting the coil 41 again to complete the coil 41 finishing process. The shaping telescopic actuator 346 is an electric telescopic push rod. The shaping angle rotator 348 is a rotary motor.

[0052] Furthermore, the vertical telescopic drive assembly 22 is a telescopic cylinder, the cylinder body of which is fixedly connected to the top of the column 21, the telescopic rod of which is fixedly connected to the top of the pressure block 23, and the bottom of the pressure block 23 has a V-shaped opening.

[0053] The beneficial effects of this technical solution are: the V-shaped opening can accommodate stator cores with different outer diameters.

[0054] Furthermore, the clamping spacing adjustment assembly 27 includes a servo motor 271, a spur thread screw, and a reverse thread screw. The body of the servo motor 271 is fixedly connected to the base 24. The output shaft of the servo motor 271 is drivenly connected to one end of the spur thread screw. The other end of the spur thread screw is aligned with and fixedly connected to one end of the reverse thread screw. The other end of the reverse thread screw is connected to the base 24 via a bearing 272. The bottom of the first support clamping block 25 is provided with a first screw hole, which is screwed into the spur thread screw. The bottom of the second support clamping block 26 is provided with a second screw hole, which is screwed into the reverse thread screw.

[0055] The beneficial effects of this technical solution are as follows: When the servo motor 271 rotates the positive and negative threaded screws clockwise simultaneously, the first support clamp 25 and the second support clamp 26 move closer together; when the servo motor 271 rotates the positive and negative threaded screws counterclockwise simultaneously, the first support clamp 25 and the second support clamp 26 separate; the distance between the first support clamp 25 and the second support clamp 26 is precisely adjusted by the servo motor 271. The thread directions of the positive and negative threaded screws are opposite.

[0056] Furthermore, the two shaping devices 3 are located to the left and right of the workpiece positioning device 2, respectively.

[0057] The beneficial effects of this technical solution are: the two shaping devices 3 can simultaneously shape the coils 41 exposed at both ends of the positioning iron core, thereby improving the shaping efficiency.

[0058] This utility model also includes a control device of the prior art, such as a PLC controller. The control device is electrically connected to the workpiece positioning device 2 and the shaping device 3, and is used to control the workpiece positioning device 2 and the shaping device 3 to perform orderly shaping work.

[0059] This utility model provides a stator coil shaping machine, which aims to conveniently shape stator coils 41 with different inner and outer diameters without manual mold changing. The overall idea of ​​the technical solution is that the inner spinning roller 331 and outer spinning roller 332 of the spinning shaping assembly 33 shape the coil 41. When further compaction of the coil 41 is required, the outer shrinking block 342 and inner expanding block 343 of the expanding shaping assembly 34 shape the coil 41. Both ends of the stator are shaped simultaneously until the coil 41 reaches the required size, thereby reducing labor intensity and improving work efficiency. For example, it can shape stator coils 41 of any model with an outer diameter from 100mm to 300mm.

[0060] The working principle of this utility model is as follows: Based on stator coils 41 with different inner and outer diameters, after adjusting the spacing between the first support clamp 25 and the second support clamp 26 of the workpiece positioning device 2, the first support clamp 25 and the second support clamp 26 clamp the stator core 4, and the V-shaped opening of the pressure block 23 presses down on the stator core 4, completing the workpiece positioning. At this time, the center of the stator core 4 of the corresponding size is aligned with the center of the arc-shaped plate 3351 of the shaping device 3 and is on the same axis. The spinning and shaping assembly 33 approaches the coil 41 exposed from the stator core 4. The inner spinning roller 331 applies pressure from the inside out to the inner side of the coil 41, while the outer spinning roller 332 applies pressure from the outside in to the outer side of the coil 41 for rough shaping. After rough shaping, the spinning and shaping assembly 33 disengages from the coil 41. The positions of the spinning and shaping assembly 33 and the expansion and shaping assembly 34 are switched. The expansion and shaping assembly 34 approaches the coil 41 and compacts and shapes the coil 41 through an inner expansion and outer contraction method for fine shaping. After fine shaping, the expansion and shaping assembly 34 disengages from the coil 41, the pressure block 23 moves upward, the first support clamp 25 and the second support clamp 26 release the stator core 4, and the worker removes the stator with the shaped coil 41. Batch shaping processing of coils 41 of stator core 4 of corresponding dimensions is then performed.

[0061] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A stator coil shaping machine, characterized in that, include: Machine frame, workpiece positioning device, forming device; The workpiece positioning device includes a column, a vertical telescopic drive assembly, a pressure block, a base, a first support clamp, a second support clamp, and a clamping distance adjustment assembly. The bottom of the column is fixedly connected to the frame, and the top of the column is connected to the pressure block through the vertical telescopic drive assembly. The base is fixedly connected to the frame, and the first and second support clamps are both connected to the base through the clamping distance adjustment assembly. The first and second support clamps are both located below the pressure block. The shaping device includes a lateral telescopic drive assembly, a support, and a spinning shaping assembly. The support is connected to the frame via the lateral telescopic drive assembly, and the spinning shaping assembly is mounted on the support. The spinning and shaping assembly includes an inner spinning roller, an outer spinning roller, an inner adjusting block, an outer adjusting block, a support plate, a rotating shaft, and a shaping rotary driver. The center of the inner spinning roller is rotatably connected to the support shaft of the inner adjusting block, and the inner adjusting block is radially slidably connected to the front side of the support plate. The center of the outer spinning roller is rotatably connected to the support shaft of the outer adjusting block, and the outer adjusting block is radially slidably connected to the front side of the support plate. The back side of the support plate is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the support via the shaping rotary driver.

2. The stator coil shaping machine according to claim 1, characterized in that, The spinning and shaping assembly also includes a guide rail. The support plate is divided into an arc-shaped plate and a rectangular plate. The center of the back side of the arc-shaped plate is fixedly connected to one end of the rotating shaft. One end of the guide rail is fixedly connected to the front side of the arc-shaped plate, and the other end of the guide rail is fixedly connected to the front side of the rectangular plate. The inner adjustment block and the outer adjustment block are slidably connected to the guide rail. The inner adjustment block is located on the arc-shaped plate, and the outer adjustment block is located on the rectangular plate.

3. A stator coil shaping machine according to claim 2, characterized in that, The spinning and shaping assembly further includes a first stepper motor, a second stepper motor, a first screw, and a second screw. The body of the first stepper motor is fixedly connected to the front side of the arc-shaped plate, and the output shaft of the first stepper motor is drivenly connected to the first screw. The inner adjusting block is provided with a first screw hole, which is screwed into the first screw. The body of the second stepper motor is fixedly connected to the front side of the rectangular plate, and the output shaft of the second stepper motor is drivenly connected to the second screw. The outer adjusting block is provided with a second screw hole, which is screwed into the second screw.

4. A stator coil shaping machine according to claim 2, characterized in that, The spinning and shaping assembly further includes a limiting ring plate, a guide ring plate, a guide wheel, and a connecting rod. One end of the connecting rod is fixedly connected to the front side of the arc-shaped plate, and the other end of the connecting rod is rotatably connected to the center of the guide wheel. The outer circumferential surface of the guide ring plate has an annular groove, and the guide wheel is in rolling connection with the annular groove. There are multiple connecting rods and guide wheels, which are arranged at intervals around the center of the guide ring plate. The limiting ring plate is fixedly connected to the guide ring plate. The center of the limiting ring plate, the center of the guide ring plate, and the center of the arc-shaped plate are all on the same axis. The support shaft of the inner adjusting block passes through the central through hole of the guide ring plate and the central through hole of the limiting ring plate.

5. A stator coil shaping machine according to claim 1, characterized in that, The shaping device further includes a pressure shaping component and a corner drive component. The support is divided into an upper support and a lower support. The upper support and the lower support are connected by the corner drive component. The pressure shaping component and the spinning shaping component are respectively arranged on different sides of the upper support. The lower support is connected to the frame by the lateral telescopic drive component.

6. A stator coil shaping machine according to claim 5, characterized in that, The included angle between the expansion forming component and the spinning forming component is 90°.

7. A stator coil shaping machine according to claim 1, characterized in that, The vertical telescopic drive assembly is a telescopic cylinder. The cylinder body of the telescopic cylinder is fixedly connected to the top of the column, and the telescopic rod of the telescopic cylinder is fixedly connected to the top of the pressure block. The bottom of the pressure block has a V-shaped opening.

8. A stator coil shaping machine according to claim 1, characterized in that, The clamping spacing adjustment assembly includes a first servo motor, a spur threaded screw, and a reverse threaded screw. The body of the first servo motor is fixedly connected to the base. The output shaft of the first servo motor is drivenly connected to one end of the spur threaded screw. The other end of the spur threaded screw is aligned with and fixedly connected to one end of the reverse threaded screw. The other end of the reverse threaded screw is connected to the base via a bearing. The bottom of the first support clamp is provided with a first screw hole, which is screwed into the spur threaded screw. The bottom of the second support clamp is provided with a second screw hole, which is screwed into the reverse threaded screw.

9. A stator coil shaping machine according to claim 1, characterized in that, The two shaping devices are located to the left and right of the workpiece positioning device, respectively.

Images