Detection circuit applied to servo controller and servo motor of dispensing system

Abstract

The utility model relates to the field of dispensing equipment, and provides a detection circuit applied to a servo controller and a servo motor of a dispensing system, which comprises a mains supply control module, a switching power supply module, a main control module, a man-machine interaction module, a servo driver and a servo motor, a first lead of an output end of the mains supply control module is connected with a main power supply input end of the servo driver, a second lead of the mains supply control module is connected with the switching power supply module, an output end of the switching power supply module is connected with the main control module and the man-machine interaction module, the servo motor is connected with the servo driver, and the main control module is connected with the servo driver and sends an instruction to the servo driver. The man-machine interaction module is connected with the master control module, receives the servo controller and servo motor state information fed back by the servo driver and is connected with the master control module; according to the utility model, the states of the servo controller and the servo motor can be monitored, and reliable dispensing operation is ensured.

Description

Technical Field

[0001] The utility model relates to the field of glue dispensing equipment, in particular to a detection circuit applied to a servo controller and a servo motor of a glue dispensing system. Background Art

[0002] The precision dispensing industry requires automated, fast, and precise positioning of dispensing products, necessitating the extensive use of servo controllers and servo motors. These controllers and motors must exhibit high real-time responsiveness and reliable stability to meet these requirements, necessitating rigorous testing of these servo drivers and motors. Existing dispensing systems are unable to monitor the status of these servo controllers and motors in real time, failing to meet these requirements. Utility Model Content

[0003] The problem solved by the utility model is how to provide a detection circuit which can monitor the states of a servo controller and a servo motor and ensure reliable operation of glue dispensing.

[0004] In order to solve the above problems, the utility model provides a detection circuit for a servo controller and a servo motor of a dispensing system, comprising: a mains control module, a switching power supply module, a main control module, a human-computer interaction module, a servo driver and a servo motor. The input end of the mains control module is connected to the mains, and the controlled end is connected to the main control module. The first lead of the output end of the mains control module is connected to the main power input end of the servo driver, and the second lead is connected to the switching power supply module. The output end of the switching power supply module is connected to the main control module and the human-computer interaction module. The servo motor is connected to the servo driver, operates according to the control instructions of the servo driver, and feeds back encoder signals. The main control module is connected to the servo driver, sends instructions to the servo driver, and receives the servo controller and servo motor status information fed back by the servo driver. The human-computer interaction module is connected to the main control module.

[0005] Furthermore, the human-computer interaction module adopts a touch screen, and the touch screen is connected to the main control module via serial port communication.

[0006] Furthermore, the AC power control module includes a main switch and a first thermal protection switch, the input end of the main switch is connected to the AC power, and the output end is connected to the input end of the first thermal protection switch. The first lead of the output end of the first thermal protection switch is connected to the main power input end of the servo driver, and the second lead is connected to the switching power supply module.

[0007] Furthermore, the switching power supply module includes a first switching power supply and a second thermal protection switch, the input end of the first switching power supply is connected to the output end of the first thermal protection switch, the output end is connected to the input end of the second thermal protection switch, and the output end of the second thermal protection switch is connected to the main control module and the human-computer interaction module.

[0008] Furthermore, the communication signal port of the servo driver is connected to the input and output ports of the main control module through a shielded cable.

[0009] Furthermore, the driving output terminal of the servo driver is connected to the power terminal of the servo motor through a cable, and the encoder signal port is connected to the encoder of the servo motor through a shielded cable.

[0010] Furthermore, the detection circuit further includes a servo alarm module, which is connected to the main control module and is used to transmit a servo positive limit signal to the main control module.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] When the dispensing equipment is running, the servo driver controls the servo motor while receiving the feedback signal and encoder information from the servo motor to obtain the motion status of the servo motor. The servo driver and the main control module communicate with each other. The main control module can collect the working information of the servo driver and the operating status information and position information of the servo motor. The main control module and the servo driver are interconnected to realize closed-loop control, thereby ensuring precise position and trajectory control, and displayed through the human-computer interaction module to realize effective monitoring of the servo controller and servo motor status. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall principle structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the principle structure of the mains power control module of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection principle structure of the servo driver according to an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the principle structure of the servo alarm module according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] Throughout this specification, references to the terms "embodiment," "one embodiment," and "one implementation" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

[0020] like Figure 1 As shown, the utility model provides a detection circuit for a servo controller and a servo motor of a dispensing system, comprising: a mains control module, a switching power supply module, a main control module, a human-computer interaction module, a servo driver and a servo motor. The input end of the mains control module is connected to the mains, and the controlled end is connected to the main control module. The first lead of the output end of the mains control module is connected to the main power input end of the servo driver, and the second lead is connected to the switching power supply module. The output end of the switching power supply module is connected to the main control module and the human-computer interaction module. The servo motor is connected to the servo driver, operates according to the control instructions of the servo driver, and feeds back encoder signals. The main control module is connected to the servo driver, sends instructions to the servo driver, and receives the servo controller and servo motor status information fed back by the servo driver. The human-computer interaction module is connected to the main control module.

[0021] It should be noted that when the dispensing equipment is running, the servo driver controls the servo motor while receiving the feedback signal and encoder information from the servo motor to obtain the motion status of the servo motor. The servo driver and the main control module communicate with each other. The main control module can collect the working information of the servo driver and the operating status information and position information of the servo motor, and display it through the human-computer interaction module to achieve effective monitoring of the servo controller and servo motor status. At the same time, the staff can observe the status in real time. When processing is required, they can issue instructions to the main control module through the human-computer interaction module to control the servo driver action. The main control module is the controller core of this system. PLC or embedded main control chip can be used. The system is powered by AC power. The switching power supply module mainly provides power to the main control module and touch screen. The servo controller module is powered by AC power.

[0022] In one embodiment of the present invention, the human-computer interaction module adopts a touch screen, and the touch screen is connected to the main control module via serial port communication.

[0023] It should be noted that in this embodiment, the human-computer interaction module selects a large-size touch screen for human-computer operation. A user-friendly UI interface is designed on the touch screen to facilitate human-computer operation. Parameters and operation buttons can be set, and the motor speed, command pulse number, reverse pulse number, etc. can be set through the touch screen. At the same time, the display page has a motor rotation display and a driver status display. Through the display screen, the staff can know the operating status of the driver and the drive motor. In addition, the display screen and the main control module communicate through the serial port to ensure the quality of communication and simple and fast control.

[0024] In one embodiment of the present utility model, the AC power control module includes a main switch and a first thermal protection switch, the input end of the main switch is connected to the AC power, and the output end is connected to the input end of the first thermal protection switch, the first lead of the output end of the first thermal protection switch is connected to the main power input end of the servo driver, and the second lead is connected to the switching power supply module.

[0025] It should be noted that if Figure 2 As shown, the input terminals of the AC power control module are respectively connected to L, N, and PE to ensure that the system module is fully grounded. After connecting the AC power, the main control switch controls the on and off of the AC power. The main switch can be controlled by an air switch or a knife switch. Then, the first thermal protection switch is closed to supply power to the subsequent servo drive and the switching power supply module. The first thermal protection switch can be a circuit breaker with thermal protection. The on and off control of the subsequent circuit can be achieved by opening and closing the switch, and the circuit breaker can be tripped in case of overcurrent to protect the circuit. Figure 2 In the figure, Q1 is the first thermal protection switch, and its protection current is set to 10A.

[0026] In one embodiment of the present utility model, the switching power supply module includes a first switching power supply and a second thermal protection switch, the input end of the first switching power supply is connected to the output end of the first thermal protection switch, the output end is connected to the input end of the second thermal protection switch, and the output end of the second thermal protection switch is connected to the main control module and the human-computer interaction module.

[0027] It should be noted that if Figure 2 As shown, the output end of the switching power supply is provided with a second thermal protection switch Q2, which can facilitate the switching power output, ensuring that the power switches of the main control module and the touch screen are separated from the power switches of the entire system, so as to ensure that the order is the principle of powering off the main control module first and then powering on, so as to avoid interference and damage to the main control module and the touch screen when the main power supply of the main circuit is turned on and off.

[0028] In one embodiment of the present invention, the communication signal port of the servo driver is connected to the input and output ports of the main control module through a shielded cable.

[0029] It should be noted that if Figure 3 As shown in the figure, the model of the servo drive is SV660P. The L1 and L2 ports on the left side of the servo drive are the main power ports, and the remaining ports on the left side are used to communicate with the IO ports of the main control module and are connected to the main control module using shielded cables.

[0030] In one embodiment of the present invention, the drive output terminal of the servo driver is connected to the power terminal of the servo motor through a cable, and the encoder signal port is connected to the encoder of the servo motor through a shielded cable.

[0031] It should be noted that if Figure 3 As shown, the U, V, W, and PE ports on the right side of the servo driver are the power and ground ports for the servo motor, which are connected to the power terminals of the servo motor through cables. 5V, 0V, PS+, and PS- are signal exchange ports for the encoder, which are connected to the encoder through a 4-core shielded cable. When the servo motor coil rotates, it will drive the corresponding encoder to rotate, thereby outputting a moving position signal to feed back to the servo driver. The servo driver determines whether the output position is accurate based on the input feedback signal. Through the above-mentioned closed-loop system, precise positioning and trajectory are achieved, thereby meeting various strict position dispensing requirements.

[0032] In one embodiment of the present invention, the detection circuit further includes a servo alarm module, which is connected to the main control module and is used to transmit a servo positive limit signal to the main control module.

[0033] It should be noted that, when working, take the main control module adopting PLC as an example, Figure 4As shown in the figure, 24V is the main control switch signal power supply provided by the switching power supply, and the alarm signal is triggered through the switch signal receiving point of the PLC, such as X4 and X5. Taking the servo positive limit alarm at point X4 as an example, point X4 is connected to the output end of the trigger switch ST5. The trigger switch ST5 is connected to 24V in the normal state, and point X4 receives a high-level signal. When the trigger switch ST5 is triggered, it is connected to 0V, and point X4 receives a low-level signal to trigger the alarm. The trigger switch ST5 can use a limit switch and be set at the maximum positive position of the dispensing movement. When the servo motor drives the dispensing mechanism to move to the limit switch, the servo positive limit alarm is triggered. After the staff handles it and the alarm function is eliminated, it returns to its original state.

[0034] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A detection circuit for a servo controller and a servo motor in a dispensing system, characterized in that: include: A mains control module, a switching power supply module, a main control module, a human-computer interaction module, a servo drive and a servo motor. The input end of the mains control module is connected to the mains, and the controlled end is connected to the main control module. The first lead of the output end of the mains control module is connected to the main power input end of the servo drive, and the second lead is connected to the switching power supply module. The output end of the switching power supply module is connected to the main control module and the human-computer interaction module. The servo motor is connected to the servo drive, operates according to the control instructions of the servo drive, and feeds back encoder signals. The main control module is connected to the servo drive, sends instructions to the servo drive, and receives the servo controller and servo motor status information fed back by the servo drive. The human-computer interaction module is connected to the main control module.

2. The detection circuit for the servo controller and servo motor of the dispensing system according to claim 1 is characterized in that: The human-computer interaction module adopts a touch screen, and the touch screen is connected to the main control module via serial port communication.

3. The detection circuit for the servo controller and servo motor of the dispensing system according to claim 2, characterized in that: The AC power control module includes a main switch and a first thermal protection switch. The input end of the main switch is connected to the AC power, and the output end is connected to the input end of the first thermal protection switch. The first lead of the output end of the first thermal protection switch is connected to the main power input end of the servo driver, and the second lead is connected to the switching power supply module.

4. The detection circuit for the servo controller and servo motor of the dispensing system according to claim 3 is characterized in that: The switching power supply module includes a first switching power supply and a second thermal protection switch, the input end of the first switching power supply is connected to the output end of the first thermal protection switch, the output end is connected to the input end of the second thermal protection switch, and the output end of the second thermal protection switch is connected to the main control module and the human-computer interaction module.

5. The detection circuit for the servo controller and servo motor of the dispensing system according to claim 4, characterized in that: The communication signal port of the servo driver is connected to the input and output ports of the main control module through a shielded cable.

6. The detection circuit for the servo controller and servo motor of the dispensing system according to claim 5, characterized in that: The driving output end of the servo driver is connected to the power terminal of the servo motor through a cable, and the encoder signal port is connected to the encoder of the servo motor through a shielded cable.

7. The detection circuit for a servo controller and a servo motor in a dispensing system according to claim 6, characterized in that: It also includes a servo alarm module, which is connected to the main control module and is used to transmit a servo positive limit signal to the main control module.

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