The device can enable students to master the control principle of the CNC lathe system, the electrical design method, the selection of components, the electrical installation and commissioning of the lathe, the fault diagnosis and maintenance, the part programming and the graphic simulation processing process, etc., to reach the industrial production site. Principle, numerical control programming, electrical design methods and installation, commissioning and maintenance. However, most colleges face the lack of such CNC training equipment. With the wide application of numerical control technology, the school pays more and more attention to cultivating practical and skilled professionals in production, technical service and other positions, further improving students' practical ability and analyzing problem-solving ability, and comprehensively learning and mastering the control of CNC system. To this end, the company developed the principle of the electronic control system of the CNC milling machine and the internship device for the commissioning and maintenance test bench. Internship effect. The main components of the experimental device are industrial control products.

First, the functional requirements

The test bench adopts a semi-physical lathe to realize mechanical adjustment and installation of the machine tool (including spindle, feed shaft, lead screw, bearing, nut pair, etc.), and meet the electromechanical joint adjustment of CNC machine tools.

This test bench deeply analyzes the GSK980TB2 numerical control system to meet the electrical design of CNC machine tools, the fault design of CNC machine tools, the electrical assembly of CNC machine tools, and the numerical control of machine tools.

The test bench is equipped with a demonstration of a semi-physical lathe, which can process engineering plastics and wooden sticks.

The lathe adopts a four-station real tool holder for turning machining.

1 set of turning tools.

The machine tool is equipped with cable and standard interface.

The test bench can set 28 common fault points and composite fault points.

Each set of encoder, limit switch and machine zero return switch of the test bench is equipped.

Second, the product components

CNC lathe comprehensive experimental platform is composed of wide-numbered numerical control system, machine tool electrical control interface board, spindle frequency conversion speed regulation experiment board, four-station automatic tool holder experiment board, three-phase AC stepping drive and stepping motor, input and output module, Low-voltage electrical components and semi-physical lathes.

Third, the principle of numerical control

The numerical control console provides a complete control system. The control system has a complete system of numerical control technology. The console comprehensively analyzes the control principle and structure of the wide system, and electrically connects according to the requirements of real CNC equipment. The fault system provides a fully open terminal interface, which can set circuit faults. Device failure and internal operating system failure for students to measure and judge. The teacher can set the fault, the student can realize the online measurement and troubleshooting, and can also realize the power-off measurement for troubleshooting, and improve the students' ability to solve the problem. The CNC machine can be driven to carry out CNC machining. At the same time, the CNC console provides circuit fault system for setting, repairing and evaluating common faults of CNC machine tools inside the control system.