Method and apparatus for simultaneously expanding multiple motor coils

Abstract

This invention discloses a method and apparatus for simultaneously expanding a multi-unit motor coil. The method includes the following steps: mounting the two ends of the wound multi-unit motor coil onto nose clip molds at both ends of an expanding machine; clamping molds on the vertical arms on both sides of the expanding machine onto the multi-unit motor coil; controlling the vertical arms to swing and expand the multi-unit motor coil according to preset expanding parameters; monitoring the swing angle data of the clamping molds and nose clip molds in real time; dynamically adjusting the vertical arms according to the swing angle data to maintain the swing angle data consistent with the preset expanding parameters, thus completing the expanding process; the apparatus includes a control component, a data acquisition component, a mounting base, a nose clip component, a drive component, and a clamping component; it can realize actions such as straight-side stretching, end lifting, straight-side twisting, and nose twisting of the multi-unit motor coil, ensuring the consistency and accuracy of the expanding angle and curvature of the multi-unit motor coil, and significantly improving the motor assembly efficiency and operational stability.

Description

Technical Field

[0001] This invention relates to the field of multi-unit motor coil expansion, and specifically to a method and apparatus for simultaneously expanding multi-unit motor coils. Background Technology

[0002] The shuttle coil of an electric motor is a conductive component of the stator and rotor. Currently, the production of shuttle coils requires individual production, and the expansion machine used can only expand them individually. If the shuttle coils are produced one by one, there will be two lead ends. When assembling them into the motor core, the beginning and end of each coil must be soldered to the beginning and end of the other coil. The soldering process is cumbersome and prone to problems such as false soldering and poor soldering, which can cause phase loss during motor operation and lead to shutdown accidents. Therefore, winding and expanding multiple motor coils together is an innovative process that reduces solder joints, improves quality, and increases labor efficiency. Summary of the Invention

[0003] The technical problem this invention aims to solve is that the production of shuttle-shaped coils requires individual, independent fabrication, and the expanding machine used can only expand individual coils independently. If the shuttle-shaped coils are fabricated one by one, there will be two lead ends. When assembling them into the motor core, the beginning and end of each coil must be soldered to the beginning and end of another coil. The soldering process is cumbersome and prone to false soldering and incomplete soldering, which can lead to phase loss during motor operation and cause shutdown accidents. This invention provides a method for simultaneously expanding coils of multiple motors, and also provides a device for simultaneously expanding coils of multiple motors. This device can perform actions such as stretching the straight edges of the coils, raising the ends, twisting the straight edges, and twisting the nose, as well as forming the arcs at each bend and the involute curves at the ends. This ensures the consistency and accuracy of the expanding angle and curvature of the coils of multiple motors, ultimately achieving integrated expansion forming of the coils of multiple motors. Only a few solder points are needed to complete the wiring during assembly, greatly improving the motor assembly efficiency and operational stability, thereby solving the defects caused by the prior art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solutions: In a first aspect, a method for simultaneously expanding the coils of a multi-unit motor includes the following steps: The two ends of the wound multi-phase motor coil are respectively installed on the nose clip molds at both ends of the expansion machine; The clamping molds on both sides of the expansion machine are clamped onto the coil of the multi-unit motor. According to the preset expansion parameters, the arm swings to drive the multi-motor coil to expand; The swing angle data of the clamping mold and the nose clip mold are monitored in real time. The distance between the upper and lower sides of the multi-coil motor is pulled apart to the width set by the process, and the end is made into a diagonal shape. Then, the straight part of the multi-coil motor is rotated synchronously with the nose end, so that the upper and lower edges of the multi-coil motor and the nose end reach the set angle. The arc of each bend of the multi-coil motor and the involute forming of the end are automatically completed by the expansion machine at the same time as the above actions are performed. The vertical arm is dynamically adjusted according to the swing angle data to maintain the swing angle data consistent with the preset expansion parameters, thereby completing the expansion process. The swing arm can be used to stretch the straight side of the multi-motor coil, raise the end, twist the straight side, twist the nose, and form the arc at each bend and the involute at the end.

[0005] The above-mentioned method for simultaneously expanding the coils of a multi-unit motor is described in which the multi-unit motor coil consists of 4-6 units, and each motor coil has the same number of turns, wire diameter, and initial shape. Preferably, the multi-unit motor coil consists of 5 units, which are composed of 5 shuttle-shaped coils. The multi-motor coils are mounted in parallel on the nose clip mold of the expansion machine. The multi-motor coils, as a whole, achieve precise positioning and clamping of the nose and straight edge through the adapted nose clip mold and the clamping mold. The clamping point of the multi-motor coils serves as the positioning point for process parameters during the expansion process and is used to install various detectors for real-time detection. The clamping molds mounted on the opposing two vertical arms are positioned vertically in the initial position, respectively clamping the opposing two sides of the motor coil.

[0006] The above-mentioned method for simultaneously expanding a multi-motor coil includes a nose clip mold that maintains an arc-shaped limit on the nose of the motor coil during the expansion process. The nose clip mold is provided with multiple nose clip modules, each of which is rotatable and adjustable. A nose groove is formed between every two nose clip modules to clamp the motor coil so that it can move with the motor coil. The clamping mold is provided with multiple clamping modules, each of which is rotatable and adjustable. A clamping groove is formed between every two clamping modules to clamp the motor coil so that it can move with the motor coil.

[0007] The above-mentioned method for simultaneously expanding coils of multiple motors includes multiple vertical arms on both sides of the expanding machine. Each vertical arm swings back and forth around its bottom central axis and is controlled by a servo motor. Preferably, the expanding machine has two vertical arms on each side.

[0008] In the above-mentioned method for simultaneously expanding the coils of a multi-motor, the swing angle of the vertical arm is 30-45 degrees.

[0009] The above-mentioned method for simultaneously expanding multiple motor coils includes, in which the preset expansion parameters include at least one of the following: the nose curvature matching the diameter of the motor coil, the straight length of the motor coil, the expansion target angle, and the clamping height difference of the nose clamp mold. The multiple motor coils can meet the requirements of expansion angle consistency, nose curvature compatibility with the motor core, and straight length deviation. This process method can be adapted to motor cores of different diameters and power, and only requires recalibration of the expansion equipment.

[0010] In a second aspect, a multi-motor coil simultaneous expansion device includes a control component, a data acquisition component, a mounting base, a nose clip component, a drive component, and a clamping component. The nose clip assembly is installed at both ends of the mounting base and is symmetrically arranged. It includes a nose clip base and a nose clip mold. The nose clip mold is installed inside the nose clip base and has multiple rotatable strip-shaped nose clip modules installed on it. The outer walls of both sides of the nose clip module are arc-shaped, and a nose groove is formed between every two nose clip modules. The nose groove clamps the motor coil. The drive assembly is disposed between the two nose clip assemblies and mounted on the top of the mounting base; The clamping assembly is mounted on the drive assembly and symmetrically arranged, including a vertical arm and a clamping mold. The clamping mold is mounted on the inner side of the vertical arm and has multiple rotatable strip-shaped clamping modules. The outer walls of the clamping modules are arc-shaped, and a clamping groove is formed between every two clamping modules. The clamping groove clamps the motor coil. The drive assembly is driven to the two vertical arms, which are hinged together. The clamping molds on the two vertical arms are arranged vertically. Multiple data acquisition components are respectively installed on the nose clip mold and the clamping mold, and are wirelessly connected to the control component to realize data interaction. The control component controls the regulator and the drive component respectively, and the drive component drives the upright arm.

[0011] In the above-mentioned multi-motor coil simultaneous expansion device, an adjuster is installed on the nose clip base, the adjuster is connected to the nose clip mold, and the control component controls the adjuster to drive the nose clip mold to move. The drive assembly includes a drive housing and a servo motor. The servo motor is installed inside the drive housing and driven by the bottom of the upright arm. The control assembly controls the servo motor.

[0012] The above-mentioned multi-motor coil simultaneous expansion device includes multiple drive components, drive wheels are installed at the bottom of the drive box, and the control component controls the drive wheels to move and drive the drive box to move. The mounting base is provided with a slide rail on top, and the slide rail is matched with the drive wheel.

[0013] The aforementioned multi-motor coil simultaneous expansion device includes a data acquisition component comprising a speed sensor and an angle sensor, wherein the speed sensor and the angle sensor are independently mounted on both the nose clip mold and the clamping mold.

[0014] The technical solution provided by the above-mentioned multi-motor coil simultaneous expansion device has the following technical effects: The two ends of the wound multi-phase motor coil are respectively mounted on the nose clip molds at both ends of the expansion machine. The clamping molds on both sides of the expansion machine are clamped onto the multi-phase motor coil. According to the preset expansion parameters, the vertical arms are controlled to swing and drive the multi-phase motor coil to expand. The swing angle data of the clamping mold and the nose clip mold are detected in real time. The distance between the upper and lower sides is pulled to the width set by the process, and the end is made into a bevel shape. Then, the straight part of the coil is rotated synchronously with the nose end, so that the upper edge, lower edge and nose end reach the set angle. The arcs at each bend of the coil and the involute shape at the end are formed by... The clamping mechanism automatically completes the above actions simultaneously; it dynamically adjusts the vertical arm according to the swing angle data until the swing angle data matches the preset expansion parameters, thus completing the expansion. This enables actions such as stretching the straight side, raising the end, twisting the straight side, and twisting the nose of the multi-unit motor coil, as well as forming the arc at each bend and the involute at the end. This ensures the consistency and accuracy of the expansion angle and arc of the multi-unit motor coil, ultimately achieving integrated expansion forming of the multi-unit motor coil. During assembly, only a few solder points are needed to complete the wiring, significantly improving the motor assembly efficiency and operational stability. Attached Figure Description

[0015] Figure 1 This is a flowchart of a method for simultaneously expanding the coils of a multi-unit motor according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a multi-motor coil simultaneous expansion device according to the second embodiment of the present invention; Figure 3 This is a schematic diagram of the nose clip assembly in a multi-motor coil simultaneous expansion device according to a second embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping component in a multi-motor coil simultaneous expansion device according to a second embodiment of the present invention.

[0016] The accompanying figure is labeled as follows: Control component 100, mounting base 200, nose clip assembly 300, drive assembly 400, clamping assembly 500, nose clip base 301, nose clip mold 302, nose clip module 303, adjuster 304, drive box 401, slide rail 402, vertical arm 501, clamping mold 502, clamping module 503. Detailed Implementation

[0017] In order to make the technical means, inventive features, objectives and effects of the invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific illustrations. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0018] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0020] Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0021] This invention provides a method and apparatus for simultaneously expanding multi-unit motor coils. The purpose is to achieve actions such as stretching the straight edges, raising the ends, twisting the straight edges, and twisting the nose of the multi-unit motor coils, as well as forming the arcs at each bend and the involute curves at the ends. This ensures the consistency and accuracy of the expansion angle and curvature of the multi-unit motor coils, ultimately achieving integrated expansion forming of the multi-unit motor coils. During assembly, only a few solder points are needed to complete the wiring, significantly improving the motor assembly efficiency and operational stability.

[0022] like Figure 1 The diagram shown is a flowchart of a method for simultaneously expanding the coils of a multi-unit motor according to a first embodiment of the present invention. The method for simultaneously expanding the coils of a multi-unit motor includes the following steps: The two ends of the wound multi-phase motor coil are respectively installed on the nose clip molds 302 at both ends of the expansion machine; The clamping molds 502 on the two vertical arms 501 of the expansion machine are clamped onto the coil of the multi-unit motor. According to the preset expansion parameters, control the swing of the boom 501 to drive the multi-motor coil to expand; The swing angle data of clamping mold 502 and nose clip mold 302 are monitored in real time. The distance between the upper and lower sides of the multi-unit motor coil is pulled apart to the width set by the process, and the end is made into a diagonal shape. Then, the straight part of the multi-unit motor coil is rotated synchronously with the nose end, so that the upper and lower edges and the nose end reach the set angle. The arc of each bend of the multi-unit motor coil and the involute forming of the end are automatically completed by the expansion machine while the above actions are performed. The vertical boom 501 is dynamically adjusted based on the swing angle data to maintain the swing angle data consistent with the preset expansion parameters, thus completing the expansion process.

[0023] The swing arm 501 can achieve actions such as stretching the straight side of the multi-motor coil, raising the end, twisting the straight side, twisting the nose, forming the arc at each bend, and forming the involute at the end.

[0024] The multi-coil motor has 4-6 coils, and each coil has the same number of turns, wire diameter, and initial shape. Preferably, the multi-coil motor has 5 coils, consisting of 5 shuttle-shaped coils.

[0025] The multi-motor coils are mounted in parallel on the nose clip mold 302 of the expansion machine. The multi-motor coils are used as a whole to achieve precise positioning and clamping of the nose and straight edge through the matching nose clip mold 302 and clamping mold 502. The clamping point of the multi-motor coils serves as the positioning point for process parameters during the expansion process and is used to install various detectors for real-time detection.

[0026] The clamping molds 502 installed on the two opposing vertical arms 501 are positioned vertically in the initial position, clamping the opposite sides of the motor coil respectively.

[0027] During the expansion process, the nose clip mold 302 maintains an arc-shaped limit on the nose of the motor coil. The nose clip mold 302 is provided with multiple nose clip modules 303. Each nose clip module 303 can be rotated and adjusted. A nose groove is formed between every two adjacent nose clip modules 303 to clamp the motor coil so that it can move with the motor coil.

[0028] The clamping mold 502 is provided with multiple clamping modules 503. Each clamping module 503 is rotatable and adjustable. A clamping groove is formed between every two adjacent clamping modules 503 for clamping the motor coil so that it can move with the motor coil.

[0029] The expanding machine includes multiple vertical arms 501 on both sides. Each vertical arm 501 swings back and forth with its bottom center axis as the axis, and is controlled by a servo motor. Preferably, the expanding machine has two vertical arms 501 on each side, and the swing angle of the vertical arms 501 is 30-45 degrees.

[0030] The preset expansion parameters include at least one of the following: the nose arc curvature matching the motor coil diameter, the straight length of the motor coil, the expansion target angle, and the clamping height difference of the nose clamp mold. The multi-unit motor coil can meet the requirements of expansion angle consistency, nose curvature and motor core compatibility, and straight length deviation. This process method can be adapted to motor cores of different diameters and power, and only requires recalibration of the expansion equipment.

[0031] Expansion equipment parameter calibration: Based on the parameters of the coil blank and the motor core, the calibration parameters are input into the servo-controlled expansion machine. The expansion machine automatically adjusts the curvature of the nose arc fixture, the horizontal spacing of the linear fixture, the height difference of the double-layer linear fixture, and the springback compensation parameters.

[0032] Figure 2 This is a schematic diagram of the structure of a multi-motor coil simultaneous expansion device according to the second embodiment of the present invention; Figure 3 This is a schematic diagram of the nose clip assembly in a multi-motor coil simultaneous expansion device according to a second embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping component in a multi-motor coil simultaneous expansion device according to a second embodiment of the present invention. The multi-motor coil simultaneous expansion device includes a control component 100, a data acquisition component, a mounting base 200, a nose clip component 300, a drive component 400, and a clamping component 500.

[0033] like Figure 3 As shown, the nose clip assembly 300 is installed at both ends of the mounting base 200 and is symmetrically arranged. It includes a nose clip base 301 and a nose clip mold 302. The nose clip mold 302 is installed inside the nose clip base 301 and has multiple rotatable strip nose clip modules 303 installed on it. The strip nose clip modules 303 are axially mounted side by side on the nose clip mold 302. The outer walls of both sides of the nose clip modules 303 are arc-shaped. A nose groove is formed between each two adjacent nose clip modules 303. The nose groove holds the motor coil. An adjuster 304 is installed on the nose clip base 301. The adjuster 304 is connected to the nose clip mold 302. The control assembly 100 controls the adjuster 304 to drive the nose clip mold 302 to move.

[0034] The drive assembly 400 is disposed between the two nose clip assemblies 300 and mounted on top of the mounting base 200.

[0035] like Figure 4As shown, the clamping assembly 500 is mounted on the drive assembly 400 and arranged symmetrically. It includes a vertical arm 501 and a clamping mold 502. The clamping mold 502 is mounted on the inner side of the vertical arm 501 and has multiple rotatable strip clamping modules 503. The outer walls of the clamping modules 503 are arc-shaped, and a clamping groove is formed between each two adjacent clamping modules 503. The clamping groove clamps the motor coil. The drive assembly 400 is driven and connected to the two vertical arms 501. The two vertical arms 501 are hinged together. The clamping molds 502 on the two vertical arms 501 are arranged vertically. The vertical arm 501 is a swing gear controlled by a servo motor driven by the lower central axis as the axis.

[0036] Multiple data acquisition components are installed on the nose clip mold 302 and the clamping mold 502 respectively, and are connected to the control component 100 wirelessly to realize data interaction. The control component 100 controls the connected regulator 301 and the drive component 400 respectively, and the drive component 400 drives the connected arm 501.

[0037] Preferably, there are five nose slots and five corresponding clamping slots. When the multi-coil motor consists of five motor coils per group, the nose of the motor coil is an arc after unwinding. Therefore, the outer wall of the nose clip module 303 installed on the nose clip mold 302 must be made into an arc shape. The arc size of the motor coil varies depending on the motor diameter, allowing adjustment of the width of the nose clip module 303. The nose clip module 303 is rotatably mounted on the nose clip mold 302 via a screw. Adjusting the vertical difference creates different sizes. The nose clip mold 302 is mounted on the nose clip base 301 via an adjuster 304 and can be adjusted as a whole. Preferably, the adjuster 304 is a movable adjuster with rollers, and the nose clip base 301 is provided with a guide rail to match the adjuster 304. Alternatively, an adjuster 304 with a lead screw can be selected. The nose clip mold 302 is mounted on the nose clip base 301 on both sides via the guide rails, and the lead screw is connected to the nose clip mold 302. The adjuster 304 drives the lead screw to rotate, thereby moving the nose clip mold 302.

[0038] The positioning positions of the nose clip mold 302 are the same as the positions of the motor core. The height of the nose clip mold 302 is different depending on the size of the motor. There are multiple sets of two vertical arms 501. Each drive component 400 is equipped with a set of vertical arms 501. Preferably, there are two sets of vertical arms 501. The distance between the clamps on the two sets of vertical arms 501 is the straight length of the motor coil. The straight length is adjusted by the adjuster 304 and the servo motor to adjust the length of different motor coils (shuttle coils). The straight length is different depending on the size of the motor.

[0039] The drive assembly 400 includes multiple drive housings 401 and servo motors. The servo motors are installed inside the drive housings 401 and connected to the bottom of the support arm 501. The control assembly 100 controls the servo motors to move the support arm 501. Drive wheels are installed at the bottom of the drive housings 401. The control assembly 100 controls the drive wheels to move, thereby moving the drive housings 401. The top of the mounting base 200 is provided with a slide rail 402 that matches the drive wheels. The drive housings 401 move on the slide rail 402 to adjust the position of the support arm 501.

[0040] The data acquisition component includes a speed sensor and an angle sensor. Both the nose clip mold 302 and the clamping mold 502 are equipped with speed sensors and angle sensors. The speed sensors and angle sensors collect the monitoring data of the nose clip mold 302 and the clamping mold 502 in real time and transmit it to the control component. The control component processes the data and generates control parameters. The control component controls the regulator 301 and the drive component 400 according to the control parameters, thereby driving the vertical arm 501 to achieve synchronous expansion and stress rebound compensation. The control component includes a controller and a data processor. The data processor receives monitoring data from the speed sensor and angle sensor, and generates control parameters based on the monitoring data. The controller controls the regulator 301 and the drive component 400 based on the control parameters.

[0041] The servo motor drive is started, controlling the linear expansion arm 501 to swing outward synchronously. The angle sensor detects the swing angle in real time and feeds it back to the control component 100. When the preset target angle is reached, the system drives the arm 501 to accurately compensate according to the springback compensation parameters, so that the expansion angle accuracy reaches ±0.1°, realizing synchronous expansion and stress springback compensation.

[0042] The aforementioned multi-motor coil simultaneous expansion forming device uses a hinged connection between two vertical arms 501 for limiting. The height of the clamping mold on the vertical arms 501 is adjusted to create a height difference as needed. The two ends and the middle part of the multi-motor coil are sequentially installed on the nose clip mold 302 and the clamping mold, respectively. The height difference between the two nose clip molds 302 is also adjusted as needed. Each servo motor is controlled to drive the movement of the two connected vertical arms 501. Real-time adjustments to the vertical arms 501 are made based on data collected by data acquisition components (speed sensor, angle sensor), achieving precise stress rebound compensation and ensuring the consistency and accuracy of the expansion angle and curvature of the multi-motor coil. Ultimately, the integrated expansion forming of the multi-motor coil is achieved. Only a few solder points are needed for wiring during assembly, significantly improving motor assembly efficiency and operational stability.

[0043] The two sides of the motor coil are at different heights relative to the center, with one side having a slightly higher coil cross-section. Therefore, the clamping molds 502 mounted on the two vertical arms 501 are at different heights. Furthermore, the clamping modules 503 on the motor coil clamping molds 502 are arc-shaped and have two layers. Before expansion, the lower layer must be installed first, followed by the upper layer. During installation, the upper vertical arm 501 must be moved aside first. After the lower layer is installed, the upper layer rotates in before installing the upper clamping mold 502. Once all five coils are installed, they expand together. The expansion has an angle, controlled by an angle sensor, servo motor, and reducer. Due to stress, this angle will spring back. If the angle is not accurate, it needs to be adjusted to achieve an accuracy of ±0.1 degrees, facilitating unwinding within the motor slot; otherwise, unwinding is difficult.

[0044] First, insert the noses of the multi-unit motor coils one by one into the corresponding nose slots. Then, swing the upper linear expansion arm 501 outward to create space and clamp the lower part of the linear side of the motor coil. Subsequently, the upper vertical arm 501 returns to its original position and clamps the upper part of the linear side of the motor coil, completing the overall clamping and achieving precise layered clamping of the multi-unit motor coils. After clamping, the motor coils remain in a naturally straight state without pre-stress. While maintaining the expansion state, the motor coils undergo a constant temperature shaping treatment at 40℃-60℃ for 10s-30s. The temperature and time of the constant temperature shaping can be flexibly adjusted according to the coil material and wire diameter. After the vertical arm 501 returns to its original position and the clamps are released, the multi-unit motor coils are removed as a whole, and the forming indicators are checked. If they pass the test, the process proceeds to the next step.

[0045] In summary, the method and equipment for simultaneously expanding multi-unit motor coils of the present invention can realize actions such as stretching the straight side, raising the end, twisting the straight side, and twisting the nose of the multi-unit motor coil, as well as forming the arc at each bend and the involute at the end, ensuring the consistency and accuracy of the expansion angle and curvature of the multi-unit motor coil, and finally realizing the integrated expansion forming of the multi-unit motor coil. Only a few solder points are needed to complete the wiring during assembly, which greatly improves the motor assembly efficiency and operational stability.

[0046] The specific embodiments of the invention have been described above. It should be understood that the invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood to be implemented in a manner common to the art; those skilled in the art can make various modifications or alterations within the scope of the claims, and make several simple deductions, variations or substitutions, which do not affect the substantive content of the invention.

Claims

1. A method for simultaneously expanding the coils of a multi-unit motor, characterized in that, Includes the following steps: The two ends of the wound multi-phase motor coil are respectively installed on the nose clip molds at both ends of the expansion machine; The clamping molds on both sides of the expansion machine are clamped onto the coil of the multi-unit motor. According to the preset expansion parameters, the arm swings to drive the multi-motor coil to expand; Real-time monitoring of the swing angle data of the clamping mold and the nose clip mold; The vertical arm is dynamically adjusted according to the swing angle data to maintain the swing angle data consistent with the preset expansion parameters, thereby completing the expansion process.

2. The method for simultaneous expansion of coils in a multi-unit motor according to claim 1, characterized in that, The multi-coil motor has 4-6 coils, and the number of turns, wire diameter, and initial shape of each motor coil are consistent. Each of the motor coils is mounted side-by-side on the nose clip mold of the expansion machine; The clamping molds mounted on the opposing two vertical arms are positioned vertically in the initial position, respectively clamping the opposing two sides of the motor coil.

3. The method for simultaneous expansion of coils in a multi-unit motor according to claim 2, characterized in that, During the expansion process, the nose clip mold maintains an arc-shaped limit on the nose of the motor coil.

4. The method for simultaneous expansion of coils in a multi-unit motor according to claim 1, characterized in that, The expansion machine has multiple vertical arms on both sides, and each vertical arm swings back and forth with its bottom center axis as the axis.

5. The method for simultaneous expansion of coils in a multi-unit motor according to claim 4, characterized in that, The swing angle of the vertical arm is 30-45 degrees.

6. The method for simultaneous expansion of coils in a multi-unit motor according to claim 1, characterized in that, The preset expansion parameters include at least one of the following: the nose arc curvature matching the motor coil diameter, the straight length of the motor coil, the expansion target angle, and the height difference of the nose clip mold clamping.

7. A device for simultaneously expanding coils of multiple motors, characterized in that, It includes control components, data acquisition components, mounting base, nose clip components, drive components, and clamping components; The nose clip assembly is installed at both ends of the mounting base and is symmetrically arranged. It includes a nose clip base and a nose clip mold. The nose clip mold is installed inside the nose clip base and has multiple rotatable strip-shaped nose clip modules installed on it. The outer walls of both sides of the nose clip module are arc-shaped, and a nose groove is formed between every two nose clip modules. The nose groove clamps the motor coil. The drive assembly is disposed between the two nose clip assemblies and mounted on the top of the mounting base; The clamping assembly is mounted on the drive assembly and arranged symmetrically. It includes a vertical arm and a clamping mold. The clamping mold is mounted on the inner side of the vertical arm and has multiple rotatable strip clamping modules. The outer walls of the clamping modules are arc-shaped on both sides. A clamping groove is formed between every two clamping modules. The clamping groove clamps the motor coil. The drive assembly is driven to be connected to the two vertical arms, the two vertical arms are hinged to each other, and the clamping molds on the two vertical arms are arranged vertically. Multiple data acquisition components are installed on the nose clip mold and the clamping mold respectively, and are wirelessly connected to the control component to realize data interaction. The control component controls the regulator and the drive component respectively, and the drive component drives the upright arm.

8. The multi-motor coil simultaneous expansion device according to claim 7, characterized in that, An adjuster is installed on the nose clip base, the adjuster is connected to the nose clip mold, and the control component controls the adjuster to drive the nose clip mold to move. The drive assembly includes a drive housing and a servo motor. The servo motor is installed inside the drive housing and is driven by the bottom of the upright arm. The control assembly controls the servo motor.

9. A multi-motor coil simultaneous expansion device according to claim 8, characterized in that, The drive assembly is provided in multiple ways, and the bottom of the drive box is equipped with drive wheels. The control assembly controls the drive wheels to move, thereby moving the drive box. The mounting base is provided with a slide rail on top, and the slide rail is matched with the drive wheel.

10. A multi-motor coil simultaneous expansion device according to claim 7, characterized in that, The data acquisition component includes a speed sensor and an angle sensor, and the speed sensor and the angle sensor are independently installed on both the nose clip mold and the clamping mold.

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