Stepping motor driver principle demonstration teaching instrument based on single-chip microcomputer and solid-state relay

Abstract

The utility model belongs to the technical field of teaching instruments, and particularly relates to a stepping motor driver principle demonstration teaching instrument based on a single-chip microcomputer and a solid-state relay. The utility model comprises a rack, wherein the rack comprises a panel; a stepping motor, a group of eight-way solid-state relays, two single-chip microcomputers and two power supply terminal blocks are arranged on the panel; one single-chip microcomputer serves as an upper computer, the other single-chip microcomputer serves as a lower computer, and the two single-chip microcomputers are connected; the lower computer is connected with the solid-state relay, and the solid-state relay is connected with the stepping motor; according to the utility model, the lower single-chip microcomputer and the solid-state relay form a driver principle prototype to drive the stepping motor and control the steering of the stepping motor. An instruction is sent to the lower computer through the upper computer, and the driving effect of the stepping motor is demonstrated. The panel is easy and convenient to install, use and maintain, visual in effect and suitable for being applied to teaching occasions.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching instruments, and in particular relates to a stepping motor driving principle demonstration teaching instrument. Background Art

[0002] A stepper motor is an electric motor that converts electrical pulse signals into angular displacement. The controller drives the motor rotor to rotate a fixed angular displacement every time it receives a pulse signal. Therefore, the controller is an important component for driving a stepper motor. Existing commercial stepper motor drivers have high integration and low openness, and are not suitable for demonstrating the details of the stepper motor drive principle. Utility Model Content

[0003] The utility model aims to provide a stepper motor driving principle demonstration teaching instrument which is convenient to install, easy to operate and has excellent demonstration effect.

[0004] The utility model provides a teaching instrument that uses a single-chip microcomputer and a solid-state relay to demonstrate the principle of a stepper motor driver. The driver principle prototype is composed of a lower single-chip microcomputer and a solid-state relay to drive the stepper motor and control the direction of the stepper motor. The upper single-chip microcomputer sends instructions to the lower computer to demonstrate the driving effect of the stepper motor. Specifically, it includes: a stand 1, a control panel 2, a stepper motor 3, a group of eight-way solid-state relays 4, a lower single-chip microcomputer 5, an upper single-chip microcomputer 6 and positive and negative power supply terminal blocks 7, 8; wherein the control panel 2 is placed on the stand 1, and the stepper motor 3, a group of eight-way solid-state relays 4, the lower single-chip microcomputer 5, the upper single-chip microcomputer 6 and the positive and negative power supply terminal blocks 7, 8 are arranged on the control panel 2; the upper single-chip microcomputer 6 is connected to the lower single-chip microcomputer 5, the lower single-chip microcomputer 5 is connected to the eight-way solid-state relay 4, the eight-way solid-state relay 4 is connected to the stepper motor 3, and the eight-way solid-state relay 4 is connected to the positive and negative power supply terminal blocks 7, 8.

[0005] In the present invention, the lower single-chip microcomputer 5 and the eight-way solid-state relay 4 form a stepper motor driver principle prototype to control the direction of the stepper motor 3. The upper single-chip microcomputer 6 sends instructions to the lower single-chip microcomputer 5 to demonstrate the driving effect of the stepper motor.

[0006] This utility model demonstrates the driving principle of the stepper motor, integrates the power supply equipment and circuit, stepper motor, single chip microcomputer and solid state relay on the panel, and demonstrates how to control the stepper motor through the driver. The panel is simple and convenient to install, use and maintain, and is suitable for teaching occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a structural schematic diagram of a teaching instrument for demonstrating the principle of a stepper motor driver using a single-chip microcomputer and a solid-state relay as described in Example 1 of the utility model.

[0008] Figure 2 This is a circuit diagram of a teaching instrument for demonstrating the principle of a stepper motor driver using a single-chip microcomputer and a solid-state relay as described in Example 1 of the utility model.

[0009] Numbers in the figure: 1-stand; 2-control panel; 3-stepping motor; 4-eight-way solid-state relay; 5-lower microcontroller; 6-upper microcontroller; 7-positive power supply terminal block; 8-negative power supply terminal block. DETAILED DESCRIPTION

[0010] The utility model provides a teaching instrument for demonstrating the principle of a stepper motor driver by using a single-chip microcomputer and a solid-state relay, comprising a stand 1, a control panel 2 is arranged in front of the stand 1, and the control panel 2 is provided with a stepper motor 3, a group of eight-way solid-state relays 4, a lower single-chip microcomputer 5, an upper single-chip microcomputer 6 and two power supply terminal blocks 7, 8.

[0011] In the present invention, the material of the stand 1 is not particularly limited. Preferably, the stand 1 is assembled from aluminum profiles, with a height of 4-5U, a depth of 100-300mm, and a width of 400-500mm; more preferably, the stand 1 is assembled from aluminum profile panels, with a height of 5U, a depth of 200mm, and a width of 500mm.

[0012] The control panel 2 is made of aluminum alloy plate by laser cutting, and there is no special size restriction. Preferably, the control panel 2 has a height of 2-3U and a width of 400-500mm, and is provided with through holes for fixing and threading. In some embodiments, the stand 1 in the utility model can also be made into a box-shaped whole with the control panel 2.

[0013] The upper single chip microcomputer 6 is connected to the lower single chip microcomputer 5 and sends a demonstration instruction to the lower single chip microcomputer 5 .

[0014] The lower single chip microcomputer 5 is connected to the eight-way solid-state relay 4 and controls the state of each channel of the eight-way solid-state relay 4 according to a fixed timing sequence.

[0015] The eight-way solid-state relay 4 is connected to the stepper motor 3, supplies power to the A phase and the B phase of the stepper motor (3) according to a fixed timing, and controls the rotation direction of the stepper motor 3.

[0016] The working voltage of the stepper motor 3 is not limited. Preferably, the working voltage of the stepper motor 3 is 5V-24V. More preferably, the working voltage of the stepper motor 3 is 5V.

[0017] The single-chip microcomputer 5, 6 has any model. Preferably, the single-chip microcomputer 5, 6 adopts Arduino series single-chip microcomputer. More preferably, the single-chip microcomputer 5, 6 adopts Arduino UNO.

[0018] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the scope of the embodiments.

[0019] Example 1

[0020] Taking the drive of a stepping motor as an example, the assembly method of the utility model is described in detail. Figure 1 As shown, the connection principle of each device is as follows Figure 2 As shown, it includes a stand 1, a control panel 2 is arranged in front of the stand 1, and the control panel 2 is provided with a stepper motor 3, a group of eight-way solid-state relays 4, a lower single-chip microcomputer 5, an upper single-chip microcomputer 6 and two power supply terminal blocks 7, 8.

[0021] The stand 1 is assembled from aluminum profiles, with a height of 5U, a depth of 200mm, and a width of 500mm.

[0022] The control panel 2 is cut from an aluminum profile panel, with a height of 2U and a width of 485mm.

[0023] The control panel 2 is provided with a stepper motor 3, a group of eight-way solid-state relays 4, a lower single-chip microcomputer 5, an upper single-chip microcomputer 6 and two power supply terminal blocks 7, 8.

[0024] The upper single-chip microcomputer 6 is connected to the lower single-chip microcomputer 5. The digital port D4 sends a pulse command to control the speed of the stepper motor 3. The digital port D5 sends a direction command to control the direction of the stepper motor 3.

[0025] The eight-way solid-state relay 4 is connected to the stepper motor 3 and to the lower single-chip microcomputer 5, and is controlled by the program of the lower single-chip microcomputer 5 to drive the shaft of the stepper motor 3 to rotate clockwise or counterclockwise. The eight-way solid-state relay 4 is connected to the power supply terminal blocks 7 and 8. If the shaft of the stepper motor (3) is required to rotate clockwise, the control level timing sequence of the channel 1 of the eight-way solid-state relay 4 is: high, high, low, low, low, low, low, high; the control level timing sequence of the channel 2 of the eight-way solid-state relay 4 is: low, low, low, high, high, high, low, low; the control level timing sequence of the channel 3 of the eight-way solid-state relay 4 is: low, low, low, high, high, high, low, low; the control level timing sequence of the channel 4 of the eight-way solid-state relay 4 is: high, high, low ... The control level timing sequence of the eight-way solid-state relay 4 channel 5 is: low, high, high, high, low, low, low, low; the control level timing sequence of the eight-way solid-state relay 4 channel 6 is: low, low, low, low, low, high, high, high; the control level timing sequence of the eight-way solid-state relay 4 channel 7 is: low, low, low, low, low, high, high, high; the control level timing sequence of the eight-way solid-state relay 4 channel 8 is: low, high, high, high, low, low, low. If the shaft of the stepper motor 3 needs to rotate counterclockwise, the above timing sequence can be reversed.

[0026] The operating voltage of the stepper motor 3 is 5V.

[0027] The single chip microcomputer 8 adopts Arduino UNO.

[0028] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be regarded as equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A stepper motor driver principle demonstration teaching instrument based on single chip microcomputer and solid state relay, characterized in that: Specifically include: A stand (1), a control panel (2), a stepper motor (3), a group of eight-way solid-state relays (4), a lower single-chip microcomputer (5), an upper single-chip microcomputer (6) and positive and negative power supply terminal blocks (7, 8); wherein the control panel (2) is placed on the stand (1), and the stepper motor (3), a group of eight-way solid-state relays (4), the lower single-chip microcomputer (5), the upper single-chip microcomputer (6) and the positive and negative power supply terminal blocks (7, 8) are arranged on the control panel (2); the upper single-chip microcomputer (6) is connected to the lower single-chip microcomputer (5), the lower single-chip microcomputer (5) is connected to the eight-way solid-state relays (4), the eight-way solid-state relays (4) are connected to the stepper motor (3), and the eight-way solid-state relays (4) are connected to the positive and negative power supply terminal blocks (7, 8).

2. The stepper motor driver principle demonstration teaching instrument according to claim 1 is characterized in that: The lower single chip microcomputer (5) and the eight-way solid-state relays (4) form a stepping motor driver principle prototype to control the direction of the stepping motor (3).

3. The stepper motor driver principle demonstration teaching instrument according to claim 1 is characterized in that: The upper single-chip computer (6) sends instructions to the lower single-chip computer (5) to demonstrate the driving effect of the stepping motor.

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