Control system of water jet cutting machine

Abstract

The utility model discloses a control system of a water jet cutting machine. The control system comprises power supply equipment, a data transmission mode, a data acquisition and analysis control unit and a direct drive pump, the power supply equipment comprises a 24V switching power supply and a circuit breaker, the data acquisition and analysis control unit comprises a PLC controller, a sensor, a servo motor, a touch screen and a cloud platform, the PLC controller acquires data detected by the sensor through an analog quantity module, the PLC controller can read data of a servo driver, the touch screen and the cloud platform can send instructions to the PLC controller, and the PLC controller can send the instructions to the power supply equipment. The data transmission mode is a 485 communication protocol and a 4G signal. By means of the equipment of the control system, real-time monitoring, real-time control, real-time data collection and remote data analysis of the water jet cutting machine are achieved, automatic protection of equipment faults is achieved, the automation degree of the equipment is high, cost is saved, cost is reduced, efficiency is improved, and production and management efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waterjet cutting machine technology, specifically a control system for a waterjet cutting machine. Background Technology

[0002] Waterjet cutting, also known as water jet cutting, is a high-pressure water jet cutting technology that uses high-pressure water jets for cutting. Under computer control, it can carve workpieces arbitrarily and is less affected by material texture. Due to its low cost, ease of operation, and high yield, waterjet cutting is gradually becoming the mainstream cutting method in industrial cutting technology. Due to the energy gradient, the cutting ability of laser, gas plasma, and jet cutting methods decreases as the cut deepens (further from the nozzle), resulting in a cut surface that is often not perpendicular to the workpiece surface, known as cutting angle, an inherent defect of all cutting methods. Although increasing cutting energy or decreasing cutting speed can partially reduce cutting angle, the problem of not being able to cut perfectly perpendicularly still exists. Therefore, the concept of a tilting cutting head was proposed in 1997, and commercial products are already available internationally. This is the most direct and effective method to solve the cutting angle problem and improve accuracy. The principle is to add two more rotating axes to the original three-axis platform. The cutter head can swing in any direction. By using the inclination model set in the system in advance, the cutting trajectory is calculated in real time and then corrected according to the material and thickness of the workpiece. During the cutting process, the cutting head swings continuously so that the cut workpiece reaches a perfect state without inclination.

[0003] A search of existing technologies reveals: Prior art 1: Application number CN200910047734.4, a waterjet cutting system for cutting finished products, comprising: a feeding system, a recovery system, a waterjet movement control system, a water flow control system, and a workstation. The workstation simultaneously controls the feeding system, the recovery system, the waterjet movement control system, and the water flow control system. This waterjet cutting control system not only possesses the advantages of conventional high-pressure waterjet cutting systems, but also, compared to conventional high-pressure waterjet cutting systems using a cantilever drive structure, has advantages such as smaller size, better rigidity, ability to withstand high speeds, and higher acceleration and deceleration capabilities. Furthermore, the high-pressure waterjet cutting system provided by this invention can significantly improve the accuracy of finished product cutting and prevent damage to finished products during cutting, thereby accelerating the cutting speed, increasing yield, and saving manufacturing costs. Prior art 2: Application No. CN202321049156.X, a high-pressure double waterjet cutting device for paper feeding, which belongs to the field of papermaking equipment technology, includes a crossbeam, on which an installation groove is provided, and two parallel driving components are provided at one end of the crossbeam in the vertical direction. A transmission component is provided in the installation groove and is connected to the driving components. A waterjet component that can reciprocate within the installation groove is installed on the transmission component. It also includes a control system electrically connected to the transmission component and the waterjet component. The control system includes a first subsystem for controlling the operation of the two driving components and a second subsystem for realizing the uniform reciprocating movement of the waterjet component.

[0004] In the existing technology, there is a lack of a dedicated control system for waterjet cutting machines that can achieve automated control, automatic fault detection, remote monitoring of the cutting machine's operation, and remote control of the cutting machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a control system for a waterjet cutting machine. In the existing technology, there is a lack of a dedicated control system for waterjet cutting machines to achieve automatic control, automatic fault detection, remote monitoring of the cutting machine's operation, and remote control of the cutting machine.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical means:

[0007] A control system for a waterjet cutting machine includes a power supply, a data transmission method, a data acquisition and analysis control unit, and a direct-drive pump. The power supply is a 24V switching power supply and a circuit breaker. The data acquisition and analysis control unit includes a PLC controller, sensors, a servo motor, a touch screen, and a cloud platform. The PLC controller acquires data detected by the sensors through an analog module and can read data from the servo driver. The touch screen and cloud platform can issue commands to the PLC controller. The data transmission method uses the RS-485 communication protocol and 4G signals.

[0008] A control system for a waterjet cutting machine includes a power supply, a data transmission method, a data acquisition and analysis control unit, and a direct-drive pump. The power supply is a 24V switching power supply and a circuit breaker, which supplies power to the system. The data acquisition and analysis control unit includes a PLC controller, sensors, a servo motor, a touch screen, and a cloud platform. The PLC controller acquires data detected by the sensors through analog modules and can read data from the servo drive. The touch screen and cloud platform are electrically connected to the PLC controller and issue commands to it. The data transmission method uses the RS-485 communication protocol and 4G signals. The cloud platform is connected to the PLC controller through a cloud gateway, which serves as a remote gateway.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] The circuit breaker includes a 380V circuit breaker and a miniature circuit breaker. The circuit breaker controller controls the 380V external power supply; the miniature circuit breaker controls the 220V power supply.

[0011] The 24V switching power supply converts 220V AC power to 24V DC power to provide power to the PLC controller, gateway, touch screen, and sensors.

[0012] The PLC controller acquires data detected by sensors through analog modules, detects and judges the operating conditions of the equipment, and shuts down for protection when a problem occurs.

[0013] The PLC controller reads data from the servo driver, detects the motor's operating status, and controls the driver's operation via the 485 protocol.

[0014] The touchscreen and cloud platform can issue commands to the PLC controller to run the equipment and monitor the operating data.

[0015] The data transmission method involves communication between the PLC controller and the touch screen / servo driver via the 485 communication protocol, communication between the gateway and the PLC controller via the network port, and data transmission between the gateway and the cloud platform via 4G signal.

[0016] The cloud platform is connected to the cloud box, which is a remote gateway.

[0017] The direct drive pump is a five-axis direct drive pump, which connects to the sensor and the servo motor.

[0018] This utility model discloses a control system for a waterjet cutting machine. The specific operating principle of the control system is as follows:

[0019] Circuit breaker: Main power switch.

[0020] A 24V switching power supply converts 220V AC power to 24V DC power to provide power to PLCs, gateways, touch screens, sensors, and other devices.

[0021] The PLC communicates with the touch screen and servo drive via the 485 communication protocol, the gateway communicates with the PLC via the network port, and the gateway transmits data to the cloud platform via 4G signal.

[0022] The PLC collects data detected by sensors through analog modules, detects and judges the operating conditions of the equipment, and shuts down for protection when a problem occurs.

[0023] The PLC reads data from the servo driver, detects the motor's operating status, and controls the driver's operation via the 485 protocol.

[0024] Touchscreens and cloud platforms can both send commands to the PLC to run the equipment and monitor the operating data.

[0025] This utility model discloses a control system for a waterjet cutting machine. Through the equipment of the above-mentioned control system, the machine can be monitored, controlled, and remotely analyzed in real time. This system enables automatic protection against equipment failures, high degree of automation, cost savings, efficiency improvement, and enhanced production and management efficiency. Attached Figure Description

[0026] Figure 1 This is a system framework diagram of the control system for a waterjet cutting machine according to the present invention.

[0027] Figure labeling: 1-PLC controller; 2-sensor; 3-direct drive pump; 4-servo motor; 5-servo driver; 6-380V circuit breaker; 7-miniature circuit breaker; 8-24V switching power supply; 9-touch screen; 10-Yunzhou box; 11-cloud platform. Detailed Implementation

[0028] The present invention will be further described below with reference to the embodiments.

[0029] See Figure 1As can be seen, the control system of a waterjet cutting machine of this utility model includes a power supply, a data transmission method, a data acquisition and analysis control unit, and a direct drive pump 3. The power supply is a 24V switching power supply 8 and a circuit breaker. The data acquisition and analysis control unit includes a PLC controller 1, a sensor 2, a servo motor 4, a touch screen 9, and a cloud platform 11. The PLC controller 1 acquires data detected by the sensor 2 through an analog module. The PLC controller 1 can read data from the servo driver 5. The touch screen 9 and the cloud platform 11 can issue commands to the PLC controller 1. The data transmission method is based on the 485 communication protocol and 4G signals. The circuit breaker includes a 380V circuit breaker 6 and a miniature circuit breaker 7. The 24V switching power supply 8 converts 220V AC power to 24V DC power to provide power to the PLC controller 1, the gateway, the touch screen 9, and the sensor 2.

[0030] See Figure 1 As can be seen, the control system of the waterjet cutting machine of this utility model includes a PLC controller 1 that collects data detected by sensor 2 through analog module, detects and judges the operating conditions of the equipment, and stops the machine for protection when a problem occurs. The PLC controller 1 reads data from servo driver 5, detects the motor operating status, and controls the driver to run through 485 protocol. Touch screen 9 and cloud platform 11 can give instructions to PLC controller 1 to run the equipment and detect the operating data.

[0031] See Figure 1 As can be seen, the control system of the waterjet cutting machine of this utility model uses the following data transmission method: the PLC controller 1 communicates with the touch screen 9 and the servo driver 5 through the 485 communication protocol; the gateway communicates with the PLC controller 1 through the network port; the gateway transmits data with the cloud platform 11 through the 4G signal; the cloud platform 11 is connected to the cloud box, which is a remote gateway; the direct drive pump 3 is a five-axis direct drive pump; and the direct drive pump 3 is connected to the sensor 2 and the servo motor 4.

[0032] Since the above description is only a specific embodiment of the present utility model, the protection of the present utility model is not limited thereto. Any equivalent changes or substitutions of the technical features of the present technical solution that can be conceived by those skilled in the art are covered within the protection scope of the present utility model.

Claims

1. A control system for a waterjet cutting machine, comprising a power supply, a data transmission method, a data acquisition and analysis control unit, and a direct-drive pump (3); characterized in that: The power supply equipment is a 24V switching power supply (8) and a circuit breaker, which supplies power to the system. The data acquisition and analysis control unit includes a PLC controller (1), a sensor (2), a servo motor (4), a touch screen (9), and a cloud platform (11). The PLC controller (1) acquires the data detected by the sensor (2) through an analog module. The PLC controller (1) can read the data from the servo driver (5). The touch screen (9) and the cloud platform (11) are electrically connected to the PLC controller (1) and give instructions to the PLC controller (1). The data transmission method is 485 communication protocol and 4G signal. The cloud platform (11) is connected to the PLC controller (1) through a cloud gateway. The cloud gateway is a remote gateway.

2. The control system for a waterjet cutting machine according to claim 1, characterized in that: The circuit breaker is equipped with a 380V circuit breaker (6) and a miniature circuit breaker (7).

3. The control system for a waterjet cutting machine according to claim 1, characterized in that: The 24V switching power supply (8) converts 220V AC power to 24V DC power to provide power to the PLC controller (1), gateway, touch screen (9), and sensor (2).

4. The control system of a waterjet cutting machine according to claim 1, characterized in that: The PLC controller (1) collects data detected by the sensor (2) through the analog module, detects and judges the operating conditions of the equipment, and shuts down for protection when a problem occurs.

5. The control system for a waterjet cutting machine according to claim 1, characterized in that: The PLC controller (1) reads data from the servo driver (5), detects the motor's operating status, and controls the driver's operation via the 485 protocol.

6. The control system of a waterjet cutting machine according to claim 1, characterized in that: The touch screen (9) and cloud platform (11) can give instructions to the PLC controller (1) to run the equipment and detect the running data.

7. The control system for a waterjet cutting machine according to claim 1, characterized in that: The data transmission method is as follows: the PLC controller (1) communicates with the touch screen (9) and the servo driver (5) through the 485 communication protocol, the gateway communicates with the PLC controller (1) through the network port, and the gateway transmits data to the cloud platform (11) through the 4G signal.

8. The control system of a waterjet cutting machine according to claim 1, characterized in that: The direct drive pump (3) is connected to the sensor (2) and the servo motor (4).

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