DYJCQ-2 Machine Tool Circuit Maintenance Comprehensive Experimental Device

This device is a practical tr*ning equipment developed by our company for the teaching and assessment of electrical control in electrical , automation and related majors in various vocational and technical colleges , social electrician tr*ning, and various county and city m*ntenance electrician appr*sal institutes (stations). It is fully used for classroom demonstrations, machine tool electrical control principle operations and practical tr*ning and internship assessments. The device can separately assess seven types of machine tool circuits by easily replacing the hanging boxes, with high utilization rate and reduced capital investment. Each hanging box is equipped with an independent fault setting box, which is easy to operate. Since the equipment uses common electrical appliances in industry, it can be used as assessment equipment for electrical vocational tr*ning. The tr*ning in this setting can improve students' practical ability and troubleshooting skills, and overcome the shortcomings of previous teaching on actual equipment that is expensive and difficult to achieve the teaching purpose.

2. Scope of application

By replacing the hanging box, the practical tr*ning and assessment of the following seven types of machine tool circuits can be completed:

1. Z35 radial drilling machine electrical skills tr*ning and assessment

2. M7120 surface grinder circuit skills tr*ning and assessment

3. Z3050 radial drilling machine circuit skills tr*ning assessment

4. CA6140 ordinary lathe circuit skills tr*ning and assessment

5. M1432 grinder circuit skills tr*ning and assessment

6. X62W universal milling machine circuit skills tr*ning and assessment

7. T68 boring machine circuit skills tr*ning and assessment

Each circuit is equipped with 16 fault points, and the fault points are randomly designed through the fault setting box on the hanging box.

3. Characteristics

1. One device can complete the practical tr*ning and assessment of seven types of machine tool circuits, with significant economic benefits.

2. It is equipped with voltage type and current type protectors to ensure the personal safety of the operator. It is also equipped with an experiment manager that can set the tr*ning time, alarm regularly and cut off the power supply. Provide a unified standard for student assessment.

3. It is equipped with a single-chip microcomputer and full-process monitoring of the three-phase output working power supply to detect overload or short circuit between phases and lines. Once it occurs, the power supply will be cut off and an alarm will be issued. After troubleshooting, the reset button can be pressed to restart the power supply to ensure the safety of the equipment.

4. Technical performance

1. Input power: three-phase four-wire ~ 380V ±10% 50Hz

2. Temperature: -5℃～+40℃, relative humidity <85% (25℃)

3. Device capacity: <1.5KVA

4. Overall dimensions: 1500mm×750mm×1400mm

5. Structure and functions of the device

    The device m*nly consists of a tr*ning screen, a tr*ning machine tool circuit hanging box, and a tr*ning table.

(1) Practical tr*ning screen

The tr*ning screen is an iron double-layer matt dense textured spray-plastic structure with an aluminum alloy panel.

1. M*n control function board

(1) Three-phase four-wire power input, the m*n switch is connected through the leakage protector, and the contactor is operated through the start and stop buttons.

(2) There are three 450V pointer AC voltmeters to indicate the three-phase power supply voltage of the power input, and three indicator lights to indicate the connection between the tr*ning platform and the external power supply.

(3) Three-phase four-wire power output, with a single-chip microcomputer that monitors the entire phase, automatically cuts off the m*n power supply due to overload or short circuit between phases, and is equipped with alarm and reset functions.

(4) Experiment manager: It has the functions of setting tr*ning time, timing alarm, cutting off power, etc.

(5) Equipped with 380V and 220V sockets to provide working power for external instruments.

2. Auxiliary device installation screen

The installation screen on the right is equipped with a demonstration and verification motor for practical tr*ning and assessment . All the wiring ports of the motor have been led to the panel and are connected to the practical tr*ning and assessment circuit hanging box through special safety wires.
3. Virtual simulation system

1. M*ntenance of electricians, electronic motors and vocational qualification tr*ning assessment simulation software

This software is in apk format and can be used on PC or mobile. This software can set faults manually or automatically. This software can manually set fault points through the green box in the circuit diagram (you can set up to 39 fault points), you can also automatically set one random fault point, two random fault points, three random fault points, four random fault points, and five random fault points through the system. It has functions such as toolbox, component library, magnifying glass, circuit diagram, etc. You can choose a multimeter for testing through the toolbox, select appropriate components through the component library, and clearly understand each component and circuit through the magnifying glass. This software allows students to understand the working principle and circuit structure of the motor star-delta start control circuit through the setting of faults in the motor star-delta start control circuit and various investigations.

2. Virtual spectrum analyzer, logic analyzer, oscilloscope, and three-meter simulation software:

This software is in apk format and can be used on PC or mobile terminals. The functions of this software are: resistance measurement, AC voltage measurement (measuring transformer, if the multimeter burns out when measuring the transformer, black smoke will emit prompts and can reset the multimeter), determine the polarity of the transistor, measure the DC voltage (the light turns on when the ammeter is turned on), measure the DC current, and determine the quality of the capacitor. This software can drag the red and black pen tips at will. When the two pen tips are dragged and positioned on the object to be measured, a red circle will be displayed. If the positioning is not accurate, no red circle will be displayed, and when incorrect operations are performed (such as the wrong range selected, If the measured data is wrong, etc.), the meter pointer will be unresponsive, prompting errors and re-measurement, etc. This multimeter can select AC voltage range, DC voltage range, resistance range, current range, resistance adjustment to 0, and can enlarge the display data. Clearly view the measured data size. Students can learn the correct use of multimeters through this software.

3. Microcontroller and plc programmable design and control virtual simulation software:

This software is developed based on unity3d and has built-in experimental steps, experimental instructions, circuit diagrams, component lists, connection lines, power on, circuit diagrams, scene reset, return and other buttons. After the connections and codes are correct, you can start/stop, The forward movement and reverse movement buttons operate the 3D machine tool model to move. In the connected line state, the 3D machine tool model can be enlarged/reduced and translated.

1. Relay control: Read the experiment instructions and enter the experiment. By reading the circuit diagram, select the relays, thermal relays, switches and other components in the component list and drag and drop them into the electrical cabinet. The limiters are placed in the three-dimensional On the machine tool model, you can choose to cover it, and some component names can be renamed. Then click the Connect Line button to connect terminals to terminals. After successfully connecting the machine tool circuit, choose to turn on the power and proceed. If the component or line An error box will pop up if there is a connection error, and the scene can be reset at any time.

2. PLC control: The experiment is the same as relay control, with the addition of PLC control function. After the connection is completed, enter the program writing interface through the PLC coding button, and write two programs, forward and reverse, with a total of 12 ladder diagram symbols. The writing is completed. Finally, select Submit for program verification. After the verification is successful, turn on the power for operation. Error boxes will pop up for component, line connection, and code errors, and the scene can be reset at any time.

3. Single-chip microcomputer control: The experiment is the same as relay control, with the addition of single-chip microcomputer control function. After the connection is completed, enter the programming interface through the C coding button, enter the correct C language code, and after successful submission and verification, turn on the power for operation, components, lines If there are connection or code errors, an error box will pop up, and the scene can be reset at any time.

6. Configuration list

(1) List of fault point settings for X62W universal milling machine circuit skills tr*ning and assessment device:

(2) List of fault point settings for T68 horizontal boring machine circuit skills tr*ning and assessment hanging box:

(3) List of fault point settings for Z3040 radial drilling machine circuit skills tr*ning and assessment device:

(4) CA6140 ordinary lathe circuit skills tr*ning assessment hanging box fault point setting list:

Hot-selling product: Electrician tr*ning bench

Optional machine tool circuit hanging box: