A dry transformer coil casting inner and outer mold assembly detection and control device

Abstract

The present invention belongs to the technical field of mechanical assembly of dry-type transformer coils, and specifically relates to a device for assembling, detecting and controlling the inner and outer molds for casting dry-type transformer coils. The device of the present invention has a high degree of system integration, and includes a displacement sensor module, a data processing module, a data communication module, a motor control module, a control panel and a power management module. Each module has a clear division of labor, the circuit installation is convenient and quick, and the overall structure is compact, which improves the reliability and ease of operation of the system. The present invention adopts a combination of a high-precision laser displacement sensor and a stepper motor push rod to achieve high-precision detection of the concentricity and verticality parameters of the inner and outer molds for casting dry-type transformer coils and high-precision control of the concentricity. The laser displacement sensor and the stepper motor push rod cooperate with each other to make up for the problem of low automation and low precision of a single technology, and improve the control accuracy of the entire device.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical assembly of dry-type transformer coils, and particularly relates to a dry-type transformer coil casting inner and outer mold assembly detection and control device. Background Art

[0002] With the continuous advancement of dry-type transformer technology, precise control of coil assembly has become a key factor in improving product quality and production efficiency. In dry-type transformer production, accurately determining the concentricity and perpendicularity of the inner and outer molds is a key technology for achieving high-precision assembly. However, traditional assembly methods are often significantly affected by human factors in practical applications, resulting in low positioning accuracy. Therefore, the development of a high-precision, highly automated outer mold assembly and control technology has become a major need for the sustainable development of the dry-type transformer coil manufacturing industry.

[0003] Currently, the position and displacement parameters of the outer mold are primarily acquired through mechanical measurement, photoelectric sensing, and laser ranging. For example, Chinese patent CN201410052148.X discloses a device for detecting the concentricity and perpendicularity of aircraft engine rotors. This device utilizes a combination of multiple photoelectric encoder sensors to detect the concentricity and perpendicularity of the aircraft engine rotor. However, this method has relatively low detection accuracy and limited versatility. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention proposes a detection and control device for assembling inner and outer molds for casting a dry transformer coil.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A dry-type transformer coil casting inner and outer mold assembly detection and control device, including a displacement sensor module, a data processing module, a data communication module, a motor control module, a control panel and a power management module; the displacement sensor module is used to measure the position information of the inner and outer molds, including an upper laser displacement sensor, a lower laser displacement sensor and an aluminum angle; the inner and outer molds are placed on a bottom plate; six upper laser displacement sensors are provided for measuring the position information above the inner and outer molds; the upper laser displacement sensor is fixed to the frame column through the aluminum angle and is located at the upper end of the frame column; six lower laser displacement sensors are provided for measuring the position information below the inner and outer molds; the lower laser displacement sensor is fixed to the frame column through the aluminum angle and is located at the lower end of the frame column; the upper laser displacement sensor and the lower laser displacement sensor are both connected to the data processing module through wires; the data processing module is fixed to the frame cross column through a PCB board The upper part is used to read the data of the displacement sensor module, calculate the position information of the inner and outer molds according to the data, and control the motor control module to adjust the position of the inner and outer molds; the data communication module is used to transmit the position information of the inner and outer molds and the concentricity and verticality parameters to the control panel for display; the motor control module is used to adjust the concentricity of the inner and outer molds according to the position information, and includes six stepper motor push rods; the stepper motor push rods are connected to the frame columns through angle aluminum and are located at the lower end of the frame columns; the stepper motor push rods are connected to the data processing module through wires; the stepper motor push rods adjust the position of the inner and outer molds on the base plate in combination with the measured inner and outer mold position information, so that the concentricity of the inner and outer molds for casting the dry variable coil meets the requirements; the control panel is used to display the measured inner and outer mold position information and the concentricity and verticality parameters in real time; the power management module is used to convert the supply voltage into the voltage value required by each module and power the entire device.

[0007] Further as a preferred technical solution of the present invention, the displacement sensor module adopts a laser displacement sensor with a range of 120 to 280 mm and a measurement accuracy of 0.2 mm. There are twelve of them, which are divided into six groups and installed at the upper and lower ends of the frame columns, with a top-to-bottom spacing of 400 mm and an installation verticality of ≤0.1°.

[0008] Furthermore, as a preferred technical solution of the present invention, the motor control module adopts a stepper motor push rod with a stroke of 200mm, a thrust of 500N, and a speed of 10mm / s. There are six of them, which are divided into six groups and installed at the lowest end of the frame column and coincide with the vertical axis of the upper laser displacement sensor and the lower laser displacement sensor respectively.

[0009] Further, as an optimal technical solution of the present invention, the data processing module includes a reset circuit, a clock generation circuit, a JTAG program download circuit and a microprocessor; the microprocessor adopts STM32F429IGT6; in addition to the reset function of the microprocessor itself, the reset circuit is also provided with a manual reset circuit to ensure that the instructions of the microprocessor are in an initial state; the HSE end of the clock generation circuit selects a 25MHz passive crystal oscillator as the main clock for the processor; the LSE end of the clock generation circuit selects a 32.768kHz crystal oscillator as the RTC clock source to ensure that all parts of the circuit operate according to a unified timing.

[0010] Furthermore, as a preferred technical solution of the present invention, the power management module selects TPS5430DDAR as a voltage stabilizing chip, and obtains voltage values ​​corresponding to 12V, 5V, and 3.3V respectively by changing the resistance value of the peripheral circuit.

[0011] Furthermore, as a preferred technical solution of the present invention, the power management module adopts a 24V power supply, and BSMD1812 and SZP6SMB33 are used at the power supply interface for current limiting and reverse connection protection to protect the circuit.

[0012] The device for detecting and controlling the assembly of inner and outer molds for casting a dry-type transformer coil according to the present invention has the following technical effects compared with the prior art by adopting the above technical solution:

[0013] (1) This invention utilizes a combination of a high-precision laser displacement sensor and a stepper motor push rod to achieve high-precision detection of the concentricity and perpendicularity parameters of the inner and outer molds for casting dry-type transformer coils, as well as high-precision control of the concentricity. The laser displacement sensor and the stepper motor push rod work together to address the low automation and precision inherent in a single technology, thereby improving the control accuracy of the entire device.

[0014] (2) The device of the present invention has a high degree of system integration, including a displacement sensor module, a data processing module, a data communication module, a motor control module, a control panel, and a power management module. Each module has a clear division of labor, the circuit installation is convenient and fast, and the overall structure is compact, which improves the reliability and ease of operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural block diagram of a device for detecting and controlling the assembly of inner and outer molds for casting a dry-type transformer coil according to an embodiment of the present invention;

[0016] Figure 2 Schematic diagram of the installation of the laser displacement sensor and the stepper motor push rod according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of a fixing method of a laser displacement sensor according to an embodiment of the present invention;

[0018] Figure 4 Schematic diagram of a stepping motor push rod fixing method according to an embodiment of the present invention;

[0019] In the attached figure, 1. displacement sensor module; 2. data processing module; 3. data communication module; 4. motor control module; 5. control panel; 6. power management module; 7. upper laser displacement sensor; 8. lower laser displacement sensor; 9. stepper motor push rod; 10-1. frame column; 10-2. frame horizontal column; 11. base plate; 12. angle aluminum. DETAILED DESCRIPTION

[0020] The present invention will be further explained below in detail with reference to the accompanying drawings so that those skilled in the art can have a deeper understanding of the present invention and be able to implement it. However, the following reference examples are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1-4 As shown, a dry-type transformer coil casting inner and outer mold assembly detection and control device includes a displacement sensor module 1, a data processing module 2, a data communication module 3, a motor control module 4, a control panel 5 and a power management module 6; the displacement sensor module 1 is used to measure the position information of the inner and outer molds, and includes an upper laser displacement sensor 7, a lower laser displacement sensor 8 and an aluminum angle 12; the inner and outer molds are placed on a base plate 11; six upper laser displacement sensors 7 are provided for measuring the position information above the inner and outer molds; the upper laser displacement sensors 7 are fixed to the frame column 10-1 through the aluminum angle 12 and are located at the upper end of the frame column 10-1; six lower laser displacement sensors 8 are provided for measuring the position information below the inner and outer molds; the lower laser displacement sensors 8 are fixed to the frame column 10-1 through the aluminum angle 12 and are located at the lower end of the frame column 10-1; the upper laser displacement sensors 7 and the lower laser displacement sensors 8 are both connected to the data processing module 2 through wires;

[0022] The data processing module 2 is fixed to the upper part of the frame crossbar 10-2 through a PCB board, and is used to read the data of the displacement sensor module 1, calculate the position information of the inner and outer molds according to the data, and control the motor control module 4 to adjust the position of the inner and outer molds;

[0023] The data communication module 3 is used to transmit the position information of the inner and outer molds and the concentricity and perpendicularity parameters to the control panel 5 for display;

[0024] The motor control module 4 is used to adjust the concentricity of the inner and outer molds according to the position information, and includes six stepper motor push rods 9; the stepper motor push rods 9 are connected to the frame column 10-1 through the angle aluminum 12 and are located at the lower end of the frame column 10-1; the stepper motor push rods 9 are connected to the data processing module 2 through wires; the stepper motor push rods 9 adjust the positions of the inner and outer molds on the base plate 11 in combination with the measured inner and outer mold position information, so that the concentricity of the inner and outer molds for casting the dry variable coil meets the requirements; the control panel 5 is used to display the measured inner and outer mold position information and concentricity and verticality parameters in real time; the power management module 6 is used to convert the supply voltage into the voltage value required by each module and power the entire device.

[0025] The displacement sensor module 1 uses a laser displacement sensor with a range of 120 to 280 mm and a measurement accuracy of 0.2 mm. There are twelve of them in total, which are divided into six groups and installed at the upper and lower ends of the frame column 10-1, with a top-to-bottom spacing of 400 mm and an installation verticality of ≤0.1°.

[0026] The motor control module 4 uses a stepper motor push rod 9 with a stroke of 200mm, a thrust of 500N, and a speed of 10mm / s. There are six of them in total, which are installed in six groups at the lower end of the frame column 10-1 and coincide with the vertical axis of the upper laser displacement sensor 7 and the lower laser displacement sensor 8 respectively.

[0027] Data processing module 2 includes a reset circuit, a clock generation circuit, a JTAG program download circuit, and a microprocessor; the microprocessor uses the STM32F429IGT6; in addition to the microprocessor's built-in reset function, the reset circuit is also equipped with a manual reset circuit to ensure that the microprocessor's instructions are in the initial state; the HSE end of the clock generation circuit uses a 25MHz passive crystal oscillator as the main clock for the processor; the LSE end of the clock generation circuit uses a 32.768kHz crystal oscillator as the RTC clock source to ensure that all parts of the circuit operate according to a unified timing.

[0028] The power management module 6 uses a 24V power supply or battery, and uses the TPS5430DDAR as a voltage regulator chip to obtain the corresponding voltage values ​​of 12V, 5V, and 3.3V respectively; the 12V voltage is used to power the motor control module 4, the 5V voltage is used to power the displacement sensor module 1, and the 3.3V voltage is used to power the control panel 5 for displaying sensor information; in order to prevent the positive and negative poles of the power supply from being reversed or the peak surge voltage from damaging the voltage regulator chip, BSMD1812 and SZP6SMB33 are used at the power supply interface for current limiting and reverse connection protection to protect the circuit.

[0029] The specific operation process is as follows:

[0030] After debugging each circuit module, use angle aluminum 12 to fix the displacement sensor module 1 and the motor control module 4 to ensure that the vertical axis of the displacement sensor module 1, the motor control module 4 and the frame column 10-1 are aligned. Repeatedly fine-tune the position to prevent the upper laser displacement sensor 7, the lower laser displacement sensor 8 and the motor push rod 9 from being misaligned in the vertical axis, thereby reducing system errors.

[0031] First, place the inner mold on the base plate 11. The displacement sensor module 1 collects the inner mold position information in real time. The motor control module 4 adjusts the inner mold position until the distance difference between the upper laser displacement sensor 7 and the lower laser displacement sensor 8, which are installed in symmetrical positions, is ≤1mm. The inner mold verticality information is read on the control panel 5, and the inner mold verticality is manually adjusted until the verticality parameter is within ±1.5°. Then, place the outer mold on the base plate 11. The displacement sensor module 1 collects the outer mold position information in real time. The motor control module 4 adjusts the outer mold position until the distance difference between the upper laser displacement sensor 7 and the lower laser displacement sensor 8, which are installed in symmetrical positions, is ≤1mm. The outer mold verticality information is read on the control panel 5, and the outer mold verticality is manually adjusted until the verticality parameter is within ±1.5°. Finally, ensure that the verticality error of the inner and outer molds for casting the dry-type transformer coil is within ±1.5°, and the concentricity error is within ±2mm.

[0032] The specific implementation scheme described above further illustrates in detail the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above is only a specific implementation scheme of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention.

Claims

1. A dry-type transformer coil casting inner and outer mold assembly detection and control device, characterized in that: It comprises a displacement sensor module (1), a data processing module (2), a data communication module (3), a motor control module (4), a control panel (5) and a power management module (6); The displacement sensor module (1) is used to measure the position information of the inner and outer molds, and includes an upper laser displacement sensor (7), a lower laser displacement sensor (8) and an aluminum angle (12); the inner and outer molds are placed on a bottom plate (11); six upper laser displacement sensors (7) are provided for measuring the position information above the inner and outer molds; the upper laser displacement sensor (7) is fixed to the frame column (10-1) through the aluminum angle (12) and is located at the upper end of the frame column (10-1); six lower laser displacement sensors (8) are provided for measuring the position information below the inner and outer molds; the lower laser displacement sensor (8) is fixed to the frame column (10-1) through the aluminum angle (12) and is located at the lower end of the frame column (10-1); the upper laser displacement sensor (7) and the lower laser displacement sensor (8) are both connected to the data processing module (2) through wires; The data processing module (2) is fixed to the upper part of the frame horizontal column (10-2) via a PCB board, and is used to read data from the displacement sensor module (1), calculate the position information of the inner and outer molds based on the data, and control the motor control module (4) to adjust the positions of the inner and outer molds; The data communication module (3) is used to transmit the position information of the inner and outer molds and the concentricity and perpendicularity parameters to the control panel (5) for display; The motor control module (4) is used to adjust the concentricity of the inner and outer molds according to the position information, and includes six stepper motor push rods (9); the stepper motor push rods (9) are connected to the frame column (10-1) through the angle aluminum (12) and are located at the lower end of the frame column (10-1); the stepper motor push rods (9) are connected to the data processing module (2) through wires; the stepper motor push rods (9) adjust the positions of the inner and outer molds on the base plate (11) in combination with the measured position information of the inner and outer molds, so that the concentricity of the inner and outer molds for casting the dry variable coil meets the requirements; The control panel (5) is used to display the measured inner and outer mold position information and concentricity and verticality parameters in real time; The power management module (6) is used to convert the supply voltage into the voltage value required by each module and to supply power to the entire device.

2. A dry transformer coil casting inner and outer mold assembly detection and control device according to claim 1, characterized in that: The displacement sensor modules (1) use laser displacement sensors with a range of 120 to 280 mm and a measurement accuracy of 0.2 mm. Twelve of them are divided into six groups and installed at the upper and lower ends of the frame column (10-1) respectively, with a top-to-bottom spacing of 400 mm and an installation verticality of ≤0.1°.

3. The dry-type transformer coil casting inner and outer mold assembly detection and control device according to claim 1 is characterized in that: The motor control module (4) uses a stepper motor push rod (9) with a stroke of 200 mm, a thrust of 500 N, and a speed of 10 mm / s. There are six stepper motor push rods (9) in total, which are divided into six groups and respectively installed at the lowest end of the frame column (10-1) and coincide with the vertical axes of the upper laser displacement sensor (7) and the lower laser displacement sensor (8).

4. The dry-type transformer coil casting inner and outer mold assembly detection and control device according to claim 1 is characterized in that: The data processing module (2) comprises a reset circuit, a clock generating circuit, a JTAG program downloading circuit and a microprocessor; the microprocessor adopts STM32F429IGT6; in addition to the reset function of the microprocessor itself, the reset circuit is also provided with a manual reset circuit for ensuring that the instructions of the microprocessor are in an initial state; the HSE end of the clock generating circuit selects a 25MHz passive crystal oscillator as the main clock for the processor; the LSE end of the clock generating circuit selects a 32.768kHz crystal oscillator as the RTC clock source for ensuring that each part of the circuit operates according to a unified timing.

5. The dry-type transformer coil casting inner and outer mold assembly detection and control device according to claim 1 is characterized in that: The power management module (6) uses TPS5430DDAR as a voltage stabilizing chip, and obtains voltage values ​​corresponding to 12V, 5V, and 3.3V respectively by changing the resistance value of the peripheral circuit.

6. The dry-type transformer coil casting inner and outer mold assembly detection and control device according to claim 1 is characterized in that: The power management module (6) adopts a 24V power supply, and uses BSMD1812 and SZP6SMB33 at the power supply interface for current limiting and reverse connection prevention to protect the circuit.

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