Steering engine driving device and manager

Abstract

The utility model discloses a steering engine driving device and a manager. The steering engine driving device and the manager comprise a system main control board, a system voltage stabilizing board and a 2.54 mm spacing terminal seat. The system main control board and the system voltage stabilizing board are connected through the 2.54 mm spacing terminal base. The system main control board comprises a first interface, a second interface and a third interface, the first interface is used for being connected with the PLC equipment, the second interface is used for being connected with the steering engine, and the third interface is used for configuring the steering engine driving device and the manager. The system main control board comprises three in-place signal output circuits, one early warning signal output circuit, two control instruction input circuits and an optical coupler isolation circuit. The system voltage stabilizing plate comprises a first transformation circuit and a second transformation circuit, the first transformation circuit is used for supplying power to the steering engine, and the second transformation circuit is used for supplying power to the steering engine driving device and the manager. According to the utility model, the steering engine can be controlled without an upper computer.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear driving, in particular to a steering gear driving device and a manager. Background Art

[0002] Modern industrial production systems widely utilize programmable logic controllers (PLCs) as the master controller and electric or pneumatic valves as actuators. However, with the advancement of society, the continuous development of industrial systems, and the rapid advancement of science and technology, the requirements for industrial production control systems are becoming increasingly stringent. Consequently, the use of servos as actuators has become a growing trend. A servo is a motor system that continuously changes and maintains the output shaft angle within a certain range under program control.

[0003] However, it is difficult for industrial production systems that use PLC as the main control to directly control the servo. A host computer is indispensable during the operation of the servo, which leads to a long process for controlling the servo and makes it difficult for PLC to directly control the servo. Utility Model Content

[0004] Based on the above problems, the present invention provides a method to solve the problem that it is difficult for PLC to directly control the steering gear.

[0005] The embodiment of the present utility model discloses the following technical solutions:

[0006] The utility model discloses a steering gear drive device and a manager, the steering gear drive device and the manager comprising:

[0007] System main control board, system voltage regulator board and 2.54mm pitch terminal block;

[0008] The system main control board and the system voltage stabilizing board are connected via the 2.54 mm pitch terminal block;

[0009] The system main control board includes a first interface, a second interface and a third interface, the first interface is used to connect to the PLC device, the second interface is used to connect to the steering gear, and the third interface is used to configure the steering gear drive device and the manager;

[0010] The system main control board includes three-way in-position signal output circuit, one-way early warning signal output circuit, two-way control instruction input circuit, and an optical coupler isolation circuit;

[0011] The system voltage stabilizing board includes a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is used to supply power to the steering gear, and the second voltage conversion circuit is used to supply power to the steering gear drive device and the manager.

[0012] In a possible implementation, the servo drive device and the manager further include a housing, the main control board further includes a fixing hole, and the system main control board is connected to the housing through the fixing hole.

[0013] In one possible implementation, the servo drive device and the manager further include a matching liquid crystal handheld display, and the liquid crystal handheld display includes:

[0014] LCD touch screen, 18650 lithium battery, HC05 Bluetooth module, TP4056 lithium battery charging board and power switch;

[0015] The LCD touch screen is connected to the HC05 Bluetooth module;

[0016] The liquid crystal handheld display includes a third voltage conversion circuit, and the 18650 lithium battery and the liquid crystal display touch screen are connected via the third voltage conversion circuit;

[0017] The 18650 lithium battery is connected to the TP4056 lithium battery charging board;

[0018] The power switch is connected to the 18650 lithium battery through a switch circuit.

[0019] In a possible implementation, a main controller is installed on the system main control board, and the optocoupler isolation circuit includes:

[0020] A first resistor, a second resistor, a first capacitor and a TLP521 optocoupler;

[0021] The first end of the first resistor is connected to the first input end of the 2.54 mm pitch terminal block;

[0022] The second end of the first resistor is connected to the first end of the TLP521 optocoupler;

[0023] The second terminal and the third terminal of the TLP521 optocoupler are grounded;

[0024] The first terminal of the first capacitor is connected to the third terminal of the TLP521 optocoupler;

[0025] The fourth end of the TLP521 optocoupler is connected to the second end of the first capacitor, the first end of the second resistor and the main controller;

[0026] The second end of the second resistor is connected to the output end of the second voltage conversion circuit.

[0027] In a possible implementation, a main controller is installed on the system main control board, and the in-position signal output circuit includes:

[0028] A third resistor, a fourth resistor, a fifth resistor, a second capacitor, a third capacitor, a fourth capacitor, a TLP521 optocoupler, a diode, and a transistor;

[0029] The first end of the TLP521 optocoupler is connected to the first end of the third resistor and the first end of the second capacitor, and the first end of the TLP521 optocoupler is grounded;

[0030] The second end of the TLP521 optocoupler is connected to the second end of the second capacitor, and the second end of the TLP521 optocoupler is grounded;

[0031] The second end of the third resistor is connected to the main controller;

[0032] The third end of the TLP521 optocoupler is connected to the first end of the fourth resistor, the first end of the third capacitor, and the first end of the fifth resistor;

[0033] The second end of the fifth resistor is connected to the first end of the transistor;

[0034] The fourth terminal of the TLP521 optical coupler is connected to the second terminal of the transistor;

[0035] The third end of the transistor is connected to the first end of the diode, the first end of the fourth capacitor and the 2.54 mm pitch terminal block;

[0036] The second end of the fourth resistor, the second end of the third capacitor, the second end of the fourth capacitor, and the second end of the diode are connected.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] This utility model significantly simplifies the control process of the servo by integrating the functions of the servo drive device and the manager. Compared to the existing technology that relies on a host computer for complex control, the design of this application enables the PLC to control the servo directly through the system main control board, reducing intermediate links and improving the intuitiveness and simplicity of control. This improvement can effectively shorten response time, making the system more responsive during actual operation. In addition, the optocoupler isolation circuit and signal output circuit designed in this utility model improve the stability and anti-interference ability of signal transmission. In industrial environments, factors such as electromagnetic interference often affect the normal operation of equipment. The circuit design of this utility model can effectively isolate such interference and ensure stable control of the servo. This is of great significance for improving the reliability and safety of the entire industrial production system. By providing a third interface for configuring the servo drive device and the manager, users can flexibly adjust system parameters according to actual needs. This flexibility enables the system to adapt to different production needs and operating conditions, enhancing the system's adaptability and scalability. Compared with the fixed and difficult-to-adjust control systems in the existing technology, this utility model provides greater flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 This is a structural diagram of a steering gear drive device and a manager provided by the utility model;

[0041] Figure 2 An optocoupler isolation circuit diagram provided for this practical information;

[0042] Figure 3 A circuit diagram of an in-position signal output provided for this practical information;

[0043] Figure 4 A warning signal output circuit diagram provided for this practical information;

[0044] Figure 5 A circuit diagram of a storage module provided by the utility model;

[0045] Figure 6 This is a structural diagram of a liquid crystal handheld display provided by the utility model;

[0046] Figure 7This is a structural schematic diagram of another liquid crystal handheld display provided by the present invention. DETAILED DESCRIPTION

[0047] As previously mentioned, with the advancement of society, the continuous development of industrial systems, and the rapid advancement of science and technology, the requirements for industrial production control systems are becoming increasingly stringent. Therefore, the use of servos as actuators has become a growing trend. A servo is a motor system that continuously changes and maintains the output shaft angle within a certain range under program control.

[0048] As the requirements for industrial production control systems become increasingly higher, the work that servos need to perform is becoming more and more precise. Related technologies use a host computer to control the servo drive device, which leads to a long process for controlling the servo and makes it difficult for PLC to directly control the servo.

[0049] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0050] Figure 1 This is a structural diagram of a steering gear drive device and a manager provided by the utility model. Figure 1 It includes a system main control board 100, a system voltage stabilizing board 200 and a 2.54 mm pitch terminal block 300.

[0051] The system main control board 100 and the system voltage stabilizing board 200 are connected via the 2.54 mm pitch terminal block 300 .

[0052] The system main control board 100 includes a first interface, a second interface and a third interface. The first interface is used to connect to the PLC device, the second interface is used to connect to the steering gear, and the third interface is used to configure the steering gear drive device and the manager. Figure 1 In the embodiment, the first interface is the PLC device interface 101 , the second interface is the servo interface 102 , and the third interface is the user data configuration interface 103 .

[0053] The system main control board 100 includes three in-position signal output circuits, one warning signal output circuit, two control command input circuits, and an optocoupler isolation circuit. These circuits are integrated circuits on the system main control board 100. The system main control board 100 also includes fixing holes 104. When the servo drive device and the manager are protected by an enclosure, the fixing holes 104 can be fixed to the enclosure.

[0054] The system voltage stabilizing board 200 includes a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is used to supply power to the steering gear, and the second voltage conversion circuit is used to supply power to the steering gear drive device and the manager.

[0055] Next, the circuit on the system main control board is described. The system main control board includes a main controller, which can be a programmable logic controller (PLC). The PLC used on the system main control board can be an STM32 type PLC.

[0056] Figure 2 An optocoupler isolation circuit diagram is provided for this practical information. Figure 2 In the optocoupler isolation circuit, the optocoupler isolation circuit includes:

[0057] A first resistor R3, a second resistor R2, a first capacitor C2 and a TLP521 optocoupler;

[0058] The first end of the first resistor R3 is connected to the first input terminal digital_in_1 of the 2.54 mm pitch terminal block. The second end of the first resistor R3 is connected to the first end of the TLP521 optocoupler. The second and third ends of the TLP521 optocoupler are grounded. The first end of the first capacitor C2 is connected to the third end of the TLP521 optocoupler. The fourth end of the TLP521 optocoupler is connected to the second end of the first capacitor C2, the first end of the second resistor R2, and the PC0 port of the main controller. The second end of the second resistor R2 is connected to the output end of the second transformer circuit. The second transformer circuit provides power to this circuit.

[0059] The optocoupler isolation circuit needs to be connected to the in-position signal output circuit to isolate the output signal from interference. Since the system main control board includes three in-position signal output circuits, each in-position signal output circuit is connected to an optocoupler isolation circuit. Each optocoupler isolation circuit is connected to Figure 2 Similar, I won’t go into details here.

[0060] Figure 3 A circuit diagram of the output signal of the in-position signal is provided for this practical information. Figure 3 In the embodiment, the in-position signal output circuit includes:

[0061] A third resistor R16, a fourth resistor R18, a fifth resistor R17, a second capacitor C9, a third capacitor C11, a fourth capacitor C12, a TLP521 optocoupler, a diode D2 and a transistor Q2.

[0062] The first end of the TLP521 optocoupler is connected to the first end of the third resistor R16 and the first end of the second capacitor C9, and the first end of the TLP521 optocoupler is grounded. The second end of the TLP521 optocoupler is connected to the second end of the second capacitor C9, and the second end of the TLP521 optocoupler is grounded. The second end of the third resistor R16 is connected to port PB8 of the main controller. The third end of the TLP521 optocoupler is connected to the first end of the fourth resistor R18, the first end of the third capacitor C11, and the first end of the fifth resistor R17. The second end of the fifth resistor R17 is connected to the first end of the transistor Q2. The fourth end of the TLP521 optocoupler is connected to the second end of the transistor Q2. The third end of the transistor Q2 is connected to the first end of the diode D2, the first end of the fourth capacitor C12, and the digital_out_1 port of the 2.54 mm pitch terminal block. The second end of the fourth resistor R18, the second end of the third capacitor C11, the second end of the fourth capacitor C12, and the second end of the diode D2 are connected.

[0063] It is understandable that the system main control board includes three-way in-position signal output circuits. Since the structure of each in-position signal output circuit is similar, no further details will be given here.

[0064] Figure 4 A warning signal output circuit diagram is provided for this practical information. Figure 4 In the example, the warning signal output circuit includes:

[0065] Resistor R7, resistor R10, resistor R12, LED1, LED2, and LED3. R7 is connected in series with LED1, R10 is connected in series with LED2, and R12 is connected in series with LED3. LED1 is a red LED, LED2 is a yellow LED, and LED3 is a green LED. LED1 is connected to port PB5 of the main controller, LED2 is connected to port PB6 of the main controller, and LED3 is connected to port PB7 of the main controller.

[0066] In a possible implementation, three LED lights of different colors may indicate different problems by lighting up in different ways. Table 1 is a schematic diagram of possible indicator light display information.

[0067] Table 1

[0068]

[0069]

[0070] The abnormal warning signal is indicated by red, yellow and green LED lights. In one possible implementation, when the main controller has an abnormality, the three-color LED lights can light up at the same time to display the warning information more intuitively.

[0071] In a possible implementation, the system main control board may include a storage module, and data is stored through the storage module. Figure 5 A circuit diagram of a storage module provided by the utility model, Figure 5 It includes AT24C02 memory, resistor R13 and resistor R14.

[0072] The first, second, third, fourth, and seventh terminals of the AT24C02 memory are grounded, and the eighth terminal is connected to a 3.3V power supply. The first ends of resistors R13 and R14 are connected to the eighth terminal of the AT24C02 memory, resistor R13 is connected to the sixth terminal of the AT24C02 memory, and resistor R14 is connected to the fifth terminal of the AT24C02 memory. The sixth terminal of the AT24C02 memory is connected to the PA2 port of the main controller, and the fifth terminal of the AT24C02 memory is connected to the PA3 port of the main controller.

[0073] Next, we'll explain the first and second voltage transformer circuits on the system's voltage regulator board. Since the PLC control command level is 24V, while servos typically operate at around 7.4V, a first voltage transformer circuit is designed to convert the 24V voltage into approximately 7.4V to power the servos. In one possible implementation, the first voltage transformer circuit can use an XL4015 step-down module to achieve voltage reduction. The servo driver and manager operate at approximately 5V, so a second voltage transformer circuit is designed to convert the 24V voltage into approximately 4V to power them. In one possible implementation, the second voltage transformer circuit can use an MP1584EN step-down module to achieve voltage reduction.

[0074] In a possible implementation, the servo drive device and the manager further include a matching LCD handheld display. Figure 6 This is a schematic diagram of the structure of a liquid crystal handheld display provided by the utility model. Figure 6 The LCD handheld display also includes an 18650 lithium battery 601, an HC05 Bluetooth module 602, a TP4056 lithium battery charging board 603, and a power switch 604. The LCD handheld display also includes an LCD touch screen, but the LCD touch screen is Figure 6 Not shown, the LCD touchscreen is connected to the HC05 Bluetooth module 602. The LCD handheld display includes a third voltage conversion circuit, through which an 18650 lithium battery 601 and the LCD touchscreen are connected. The 18650 lithium battery 601 is connected to a TP4056 lithium battery charging board 603. A power switch 604 is connected to the 18650 lithium battery 601 via a switch circuit.

[0075] Figure 7 This is a schematic diagram of the structure of another liquid crystal handheld display provided by the present invention. Figure 7 The device includes an LCD touch screen 701, a Type-C charging port 702, a Bluetooth antenna 703, a debug communication port 704, and a power switch 705. Users can charge the 18650 lithium battery through the Type-C charging port 702, connect to the servo intelligent driver and manager through the debug communication port 704 to configure them, and connect to a mobile phone via Bluetooth.

[0076] During use, you can set the system to User Mode, Configuration Mode, and Exception Mode. User Mode responds to PLC control commands. Configuration Mode is used when configuring the servo intelligent drive and management system using the LCD handheld display. This mode is automatically entered when configuring or querying parameters on the servo intelligent drive and management system. It automatically exits after configuration is complete. Exception Mode is the system mode used when an error occurs in the servo intelligent drive and management system, such as a servo disconnection, memory anomaly, overtemperature, overvoltage, or overcurrent.

[0077] After powering on, the system first initializes and sets the mode command to default to exception mode. Then, the system enters the mode command judgment phase. Upon first power-up, the system defaults to exception mode. In exception mode, the servo intelligent drive and management system tests the servos, memory, temperature, voltage, and current, and saves the test results. If the system is operating normally, it automatically exits exception mode and enters user mode. If an abnormality is detected, the corresponding indicator light illuminates, a high level is output through the main controller's signal output terminal DO3, and the corresponding port in the main controller is configured to send the abnormality information to the LCD handheld display.

[0078] When the system enters user mode, the servo intelligent driver and manager first reads the PLC control command levels. By default, PLC control commands 0 and 3 are servo standstill commands, 1 is a door closing command, and 2 is a door opening command. The servo intelligent driver and manager then reads memory to determine the user's application mode. The present invention supports three application modes: operating knob, door opening, and gripping claws.

[0079] In a possible implementation, the servo driver and manager provided by the present invention can also be connected to a host computer, and the host computer can be connected to the servo driver and manager via an RS232-USB cable, or directly connected to a liquid crystal handheld display through a debugging communication port. The communication adopts a custom protocol, but the communication identifiers of the host computer and the liquid crystal handheld display are different. When the servo driver and manager receive a configuration instruction, the instruction will be preliminarily parsed in the interrupt service function to determine the configuration terminal type. The host computer instruction is identified according to the instruction function (such as status information query, servo door switch position, warning current, center position, speed, acceleration, maximum angle limit, movement direction, protection torque, set torque, application mode scenario, etc.), and then the configuration data is cached, and the mode instruction is set to configuration mode, and then the interrupt service function is exited. At this time, the servo driver and manager enters the configuration mode, and modifies the memory data and servo data in the configuration mode, and returns the status data.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steering gear drive device and manager, characterized in that: include: System main control board, system voltage regulator board and 2.54mm pitch terminal block; The system main control board and the system voltage stabilizing board are connected via the 2.54 mm pitch terminal block; The system main control board includes a first interface, a second interface and a third interface, the first interface is used to connect to the PLC device, the second interface is used to connect to the steering gear, and the third interface is used to configure the steering gear drive device and the manager; The system main control board includes three-way in-position signal output circuit, one-way early warning signal output circuit, two-way control instruction input circuit, and an optical coupler isolation circuit; The system voltage stabilizing board includes a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is used to supply power to the steering gear, and the second voltage conversion circuit is used to supply power to the steering gear drive device and the manager.

2. The steering gear drive device and manager according to claim 1, characterized in that: The servo drive device and the manager further include a housing, and the system main control board further includes a fixing hole. The system main control board and the housing are connected through the fixing hole.

3. The steering gear drive device and manager according to claim 1, characterized in that: The steering gear drive device and the manager further include a matching liquid crystal handheld display, which includes: LCD touch screen, 18650 lithium battery, HC05 Bluetooth module, TP4056 lithium battery charging board and power switch; The LCD touch screen is connected to the HC05 Bluetooth module; The liquid crystal handheld display includes a third voltage conversion circuit, and the 18650 lithium battery and the liquid crystal display touch screen are connected via the third voltage conversion circuit; The 18650 lithium battery is connected to the TP4056 lithium battery charging board; The power switch is connected to the 18650 lithium battery through a switch circuit.

4. The steering gear drive device and manager according to claim 1, characterized in that: The main controller is installed on the system main control board, and the optical coupling isolation circuit includes: A first resistor, a second resistor, a first capacitor and a TLP521 optocoupler; The first end of the first resistor is connected to the first input end of the 2.54 mm pitch terminal block; The second end of the first resistor is connected to the first end of the TLP521 optocoupler; The second terminal and the third terminal of the TLP521 optocoupler are grounded; The first terminal of the first capacitor is connected to the third terminal of the TLP521 optocoupler; The fourth end of the TLP521 optocoupler is connected to the second end of the first capacitor, the first end of the second resistor and the main controller; The second end of the second resistor is connected to the output end of the second voltage conversion circuit.

5. The steering gear drive device and manager according to claim 1, characterized in that: The system main control board is equipped with a main controller, and the in-position signal output circuit includes: A third resistor, a fourth resistor, a fifth resistor, a second capacitor, a third capacitor, a fourth capacitor, a TLP521 optocoupler, a diode, and a transistor; The first end of the TLP521 optocoupler is connected to the first end of the third resistor and the first end of the second capacitor, and the first end of the TLP521 optocoupler is grounded; The second end of the TLP521 optocoupler is connected to the second end of the second capacitor, and the second end of the TLP521 optocoupler is grounded; The second end of the third resistor is connected to the main controller; The third end of the TLP521 optocoupler is connected to the first end of the fourth resistor, the first end of the third capacitor, and the first end of the fifth resistor; The second end of the fifth resistor is connected to the first end of the transistor; The fourth terminal of the TLP521 optical coupler is connected to the second terminal of the transistor; The third end of the transistor is connected to the first end of the diode, the first end of the fourth capacitor and the 2.54 mm pitch terminal block; The second end of the fourth resistor, the second end of the third capacitor, the second end of the fourth capacitor, and the second end of the diode are connected.

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