Coil shaping system and coil shaping method

Abstract

The invention discloses a coil shaping system and a coil shaping method, relates to the technical field of magnetic pole coil shaping, and solves the problems that an existing magnetic pole shaping method is large in mold number, inconvenient to manage, low in production efficiency and incapable of achieving automatic production. The device comprises an electrical control system, a hydraulic power unit, an amplifier arranged between the electrical control system and the hydraulic power unit, a tensioning oil cylinder unit, a servo motor and a driver, wherein the tight supporting oil cylinder unit comprises a mold frame, a hydraulic shaping device and a tight supporting oil cylinder, supporting plates are arranged on the two sides of the hydraulic shaping device correspondingly, and the supporting plates stretch out towards the two side faces of the mold frame for tight supporting; according to the hydraulic shaping device, an electrical control system controls the rotating speed of a servo motor through a driver, so that control over the flow of the system is achieved, meanwhile, a main controller controls the current of an amplifier, the opening direction and size of a proportional valve are controlled, and tight supporting and retraction of a tight supporting oil cylinder are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of magnetic pole coil shaping, in particular to a coil shaping system and a coil shaping method. BACKGROUND

[0002] At present, with the development of new energy technology and the demand for electric power energy, the demand for power generation equipment is more prosperous. As a key component of the magnetic circuit of the motor, the importance of the technology and method of automatically manufacturing and shaping the magnetic pole coil of the magnetic pole coil is increasingly prominent, especially the manufacturing by using the magnetic pole coil shaping mold.

[0003] The existing magnetic pole shaping method is still through different molds (composed of upper pressing ring, iron flat ring, end block, middle block, mold core, etc.), first, the iron flat ring, the insulating ring and the coil are combined and placed outside the four end blocks, then the middle block and the welding connector are installed, and then the upper pressing ring is placed; after the mold is assembled, it is transferred into the oil press through the oil press platform; the coil is shaped by pressing the middle block multiple times using the oil press.

[0004] In this process, due to the characteristics of the mold structure, different molds are needed for each type and size of magnetic pole coil, resulting in a large number of molds, inconvenient management, low production efficiency and inability to realize automatic production. In order to improve the above-mentioned deficiencies, a coil shaping system and a coil shaping method are urgently needed. SUMMARY

[0005] The application provides a coil shaping system and a coil shaping method, which can shape the magnetic pole coil, have few molds, are convenient to manage and have high production efficiency.

[0006] The application provides a coil shaping system, which adopts the following technical scheme:

[0007] A coil shaping system, comprising an electrical control system, a hydraulic power unit, an amplifier arranged between the electrical control system and the hydraulic power unit, a tensioning oil cylinder unit, a servo motor and a driver;

[0008] The tensioning oil cylinder unit comprises a mold frame, a hydraulic shaping device arranged in the mold frame, and a tensioning oil cylinder arranged in the hydraulic shaping device. Support plates are arranged at both sides of the hydraulic shaping device, and the support plates extend to both sides of the mold frame. The electrical control system comprises a main controller, and the tensioning oil cylinder unit comprises a proportional valve arranged in the tensioning oil cylinder.

[0009] The hydraulic shaping device is controlled by the electrical control system to control the rotating speed of the servo motor through the driver, so that the control of the system flow size is realized, and meanwhile, the main controller controls the current size of the amplifier, so that the opening direction and size control of the proportional valve are realized, and the stretching and retracting of the stretching oil cylinder are realized.

[0010] Preferably, the hydraulic shaping device comprises a plurality of hydraulic struts arranged in parallel connection, and the support plates are arranged on the hydraulic struts.

[0011] Preferably, the stretching oil cylinder comprises a cylinder barrel connected with the support plate, a guide sleeve and a piston rod arranged on the cylinder barrel, a displacement sensor connected with the piston rod, and a support pipe and a positioning barrel arranged on the cylinder barrel; the piston rod is fixedly connected with the support plate, and the support pipe and the positioning barrel are coaxially arranged.

[0012] Preferably, the hydraulic shaping device is arranged on a hydraulic press platform.

[0013] Preferably, the mold frame is provided with a bottom plate for mounting the stretching oil cylinder.

[0014] A coil shaping method using a coil shaping system, the coil shaping method comprising the following steps:

[0015] S1: first start the electrical control system, so that the main controller starts to work, then adjust the current size through the amplifier, prepare to control the opening of the proportional valve, and the hydraulic power unit starts to work to provide hydraulic power for the stretching oil cylinder unit;

[0016] S2: place the coil to be shaped in the mold frame, ensure that the coil is aligned with the hydraulic shaping device, use the support plates on both sides of the mold frame to stretch the coil, and adjust the stretching force of the stretching oil cylinder, so that the coil remains stable;

[0017] S3: according to the material, shape and shaping requirements of the coil, the electrical control system controls the rotating speed of the servo motor through the driver, so that the control of the system flow size is realized, then the main controller controls the current size of the amplifier, sets the opening direction and size of the proportional valve, so as to control the stretching and retracting actions of the stretching oil cylinder;

[0018] S4: start the servo motor, control its rotating speed through the driver, so as to drive the hydraulic shaping device to start to work, the hydraulic shaping device shapes the coil through a plurality of parallel connected hydraulic struts, and the hydraulic struts exert uniform pressure on the coil under the action of the support plates;

[0019] S5: during the shaping process, the displacement sensor monitors the displacement of the piston rod in real time, and the main controller dynamically adjusts the opening of the proportional valve according to the feedback signal of the displacement sensor, so as to control the stretching force and shaping speed of the stretching oil cylinder.

[0020] S6: After the shaping, stop the work of the servo motor, close the hydraulic power unit and the electrical control system, and make the coil shaping system in standby state;

[0021] S7: Take out the shaped coil from the mold frame and perform quality inspection.

[0022] To sum up, the beneficial effects of the present application are:

[0023] 1. The present application realizes the shaping of the magnetic pole coil through the hydraulic shaping device in the coil shaping system, has high precision, few molds and high production efficiency.

[0024] 2. The present application aims to improve the precision, efficiency and versatility of the magnetic pole coil shaping, and the multifunctional hydraulic shaping device has simple structure.

[0025] 3. The coil shaping system comprises a hydraulic power unit, a tensioning cylinder unit, a servo motor and a driver, and the working principle of the system is that the electrical control system controls the rotating speed of the servo motor through the driver, so as to realize the control of the system flow size, at the same time, the main controller controls the current size of the amplifier to realize the opening direction and size control of the proportional valve, and realizes the tensioning and retraction of the tensioning cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is the structural schematic diagram of the tensioning cylinder of the present application embodiment;

[0027] Fig. 2 is the local sectional schematic diagram of the tensioning cylinder of the present application embodiment;

[0028] Fig. 3 is the structural schematic diagram of the coil shaping system of the present application embodiment.

[0029] BRIEF DESCRIPTION OF DRAWINGS 1. Hydraulic power unit; 2. Tensioning cylinder unit; 3. Mold frame; 4. Hydraulic shaping device; 5. Tensioning cylinder; 6. Support plate; 7. Bottom plate; 8. Cylinder barrel; 9. Guide sleeve; 10. Piston rod; 11. Displacement sensor; 12. Support pipe; 13. Positioning cylinder. DETAILED DESCRIPTION

[0030] The following will be described in conjunction with the drawings of the present application Figs. 1-3 The present application will be further described in detail.

[0031] Example 1:

[0032] The coil shaping system disclosed by the present application embodiment comprises an electrical control system, a hydraulic power unit 1, an amplifier located between the electrical control system and the hydraulic power unit 1, a tensioning cylinder unit 2, a servo motor, a driver and an oil press platform. Among them, the hydraulic shaping device 4 is located on the oil press platform.

[0033] Specifically, the bracing cylinder unit 2 comprises a mold frame 3, a hydraulic shaping device 4 arranged in the mold frame 3, and a bracing cylinder 5 arranged in the hydraulic shaping device 4. Two sides of the hydraulic shaping device 4 are respectively provided with support plates 6, and the support plates 6 extend to the two side surfaces of the mold frame 3 for bracing. The electrical control system comprises a main controller, and the bracing cylinder unit 2 comprises a proportional valve arranged in the bracing cylinder 5.

[0034] The entire hydraulic shaping device 4 is controlled by the electrical control system to control the rotating speed of the servo motor through the driver, so as to control the system flow size. Meanwhile, the main controller controls the current size of the amplifier to control the opening direction and size of the proportional valve, and to control the bracing and retraction of the bracing cylinder 5.

[0035] Further, the hydraulic shaping device 4 comprises a plurality of hydraulic struts arranged in parallel connection, and the support plates 6 are arranged in the hydraulic struts. The mold frame 3 is provided with a bottom plate 7 for mounting the bracing cylinder 5.

[0036] Further, the bracing cylinder 5 comprises a cylinder barrel 8 connected with the support plate 6, a guide sleeve 9 and a piston rod 10 arranged in the cylinder barrel 8, a displacement sensor 11 connected with the piston rod 10, a support pipe 12 and a positioning barrel 13 arranged in the cylinder barrel 8, and the piston rod 10 is fixedly connected with the support plate 6. The support pipe 12 and the positioning barrel 13 are coaxially arranged and are in sliding connection.

[0037] The functions of the components are as follows:

[0038] 1) The front support plate 6 is mainly used for supporting the mold frame 3 at the front when the bracing cylinder 5 works;

[0039] 2) The guide sleeve 9 is used for sealing the rod cavity of the cylinder and guiding the movement of the piston rod 10;

[0040] 3) The cylinder barrel 8 is used as the body of the bracing cylinder and is fixedly screwed with the workbench;

[0041] 4) The piston rod 10 is used as the moving part of the bracing cylinder. When the rodless cavity of the cylinder is pressurized, the piston rod 10 extends to brace the mold. When the rod cavity of the cylinder is pressurized, the piston rod 10 retracts, and the front support plate 6 connected with the piston rod 10 retracts together, and at this time, the mold is loosened;

[0042] 5) The displacement sensor 11 is used for feeding back the extending position of each bracing cylinder unit 2 to the control system in real time during the bracing process. The control system adjusts the opening degree of each proportional valve in real time according to the feedback signal, so as to achieve the purpose of synchronous control.

[0043] 6) The support tube 12 / positioning cylinder 13 is used to support the two support plates 6 back to back, and can adjust the working distance of the two support plates 6 according to the work requirements.

[0044] The coil shaping system in the application comprises a hydraulic power unit 1, a tensioning oil cylinder unit 2, a servo motor and a driver, the working principle of the system is that the rotational speed of the servo motor is controlled by the electrical control system through the driver, so as to control the flow size of the system, at the same time, the opening direction and size of the proportional valve are controlled by the main controller controlling the current size of the amplifier, so as to realize the tensioning and retraction of the tensioning oil cylinder 5. The purpose is to improve the precision, efficiency and universality of the magnetic pole coil shaping, and the multifunctional hydraulic shaping device 4 has a simple structure.

[0045] Embodiment 2:

[0046] A coil shaping method applied to a coil shaping system. The coil shaping method comprises the following steps:

[0047] S1: first start the electrical control system, so that the main controller starts to work, then adjust the current size through the amplifier, prepare to control the opening of the proportional valve, and the hydraulic power unit 1 starts to work, providing hydraulic power for the tensioning oil cylinder unit 2;

[0048] S2: place the coil to be shaped in the mold frame 3, ensure that the coil is aligned with the hydraulic shaping device 4, use the support plates 6 located on both sides of the mold frame 3 to tension the coil, and adjust the tensioning force of the tensioning oil cylinder 5, so that the coil remains stable;

[0049] S3: according to the material, shape and shaping requirements of the coil, the rotational speed of the servo motor is controlled by the electrical control system through the driver, so as to control the flow size of the system, then the opening direction and size of the proportional valve are set by the main controller controlling the current size of the amplifier, so as to control the tensioning and retraction actions of the tensioning oil cylinder 5;

[0050] S4: start the servo motor, control its rotational speed through the driver, so as to drive the hydraulic shaping device 4 to start working, the hydraulic shaping device 4 shapes the coil through a plurality of parallel connected hydraulic struts, and the hydraulic struts exert uniform pressure on the coil under the action of the support plates 6;

[0051] S5: in the shaping process, the displacement sensor 11 monitors the displacement of the piston rod 10 in real time, and the main controller dynamically adjusts the opening of the proportional valve according to the feedback signal of the displacement sensor 11, so as to control the tensioning force and shaping speed of the tensioning oil cylinder 5;

[0052] S6: after shaping, stop the work of the servo motor, close the hydraulic power unit 1 and the electrical control system, so that the coil shaping system is in standby state;

[0053] S7: The shaped coil is taken out of the mold frame 3 and subjected to quality inspection.

[0054] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A coil shaping system characterized by: The system comprises an electrical control system, a hydraulic power unit (1), an amplifier arranged between the electrical control system and the hydraulic power unit (1), a tensioning cylinder unit (2), a servo motor and a driver; The tensioning cylinder unit (2) comprises a mold frame (3), a hydraulic shaping device (4) arranged in the mold frame (3), and a tensioning cylinder (5) arranged in the hydraulic shaping device (4). The hydraulic shaping device (4) is provided with support plates (6) on both sides, and the support plates (6) extend to both sides of the mold frame (3). The electrical control system comprises a main controller, and the tensioning cylinder unit (2) comprises a proportional valve arranged in the tensioning cylinder (5). The hydraulic shaping device (4) is controlled by the electrical control system through the driver to control the rotating speed of the servo motor, thereby controlling the system flow size. Meanwhile, the main controller controls the current size of the amplifier to control the opening direction and size of the proportional valve, thereby controlling the tensioning and retraction of the tensioning cylinder (5).

2. A coil shaping system according to claim 1, characterized in that: The hydraulic shaping device (4) comprises a plurality of hydraulic struts arranged in parallel.

3. A coil shaping system according to claim 2, wherein: The tensioning cylinder (5) comprises a cylinder barrel (8) connected with the support plate (6), a guide sleeve (9) and a piston rod (10) arranged in the cylinder barrel (8), a displacement sensor (11) connected with the piston rod (10), and a support pipe (12) and a positioning cylinder (13) arranged in the cylinder barrel (8). The piston rod (10) is fixedly connected with the support plate (6), and the support pipe (12) and the positioning cylinder (13) are coaxially arranged.

4. A coil shaping system according to claim 1, characterized in that: The hydraulic shaping device (4) is arranged on the oil press platform.

5. A coil shaping system according to claim 1, characterized in that: The mold frame (3) is provided with a bottom plate (7) for mounting the tensioning cylinder (5).

6. A coil shaping method using the coil shaping system according to any one of claims 1 to 5, the coil shaping method comprising the following steps: S1: starting the electrical control system to make the main controller work, adjusting the current size through the amplifier to prepare for controlling the opening of the proportional valve, and starting the hydraulic power unit (1) to provide hydraulic power for the tensioning cylinder unit (2); S2: placing the coil to be shaped in the mold frame (3), ensuring that the coil is aligned with the hydraulic shaping device (4), using the support plates (6) on both sides of the mold frame (3) to tighten the coil, and adjusting the tensioning force of the tensioning cylinder (5) to keep the coil stable; S3: according to the material, shape and shaping requirements of the coil, controlling the rotating speed of the servo motor through the driver to control the system flow size, then controlling the current size of the amplifier through the main controller to set the opening direction and size of the proportional valve to control the tensioning and retraction of the tensioning cylinder (5); S4: starting the servo motor and controlling its rotating speed through the driver to drive the hydraulic shaping device (4) to work. The hydraulic shaping device (4) shapes the coil through a plurality of hydraulic struts arranged in parallel, and the hydraulic struts apply uniform pressure to the coil under the action of the support plates (6). S5: In the shaping process, the displacement sensor (11) monitors the displacement of the piston rod (10) in real time, and the main controller dynamically adjusts the opening of the proportional valve according to the feedback signal of the displacement sensor (11) to control the tensioning force and shaping speed of the tensioning cylinder (5); S6: After shaping, stop the work of the servo motor, close the hydraulic power unit (1) and the electrical control system, so that the coil shaping system is in standby state; S7: Take out the shaped coil from the mold frame (3) and perform quality inspection.

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