Electrical control workstation of macrotype isostatic pressing machine

Abstract

The invention discloses an electric control work station of a large-scale isostatic press, comprising an upper computer provided with a programming software part and a monitoring software part, a master station with an on-the-spot and process communication PROFIBUS-DP interface and at least one slave station connected with a multi-branch communication network bus, wherein the master station through which a programmable controller (PLC) passes realizes bus communication control and management and completes periodic data access; a master station can control a plurality of slave stations on the bus; moreover, at least one logic link adopting round robin communication mode in information exchange is set up between the master station and each slave station. By means of the programmable controller, the invention sets up a high-performance industrial on-the-spot local area network through an on-the-spot and process communication field bus, thereby realizing network monitoring of process and reducing a great amount of wiring and cable investment; meanwhile, the communication network field bus with an all digital multi-branch structure improves system accuracy and reliability; moreover, the invention has low cost in installation, operation and maintenance, simpler operation and more visualized monitoring.

Description

technical field [0001] The invention relates to an electrical control device for a large isostatic press. The invention belongs to the technical field of automatic control of machine tool electrical equipment and the technical field of industrial network control. Background technique [0002] With the continuous development of industrial production, the application of isostatic presses is becoming more and more extensive, and the products of isostatic presses are also getting larger and larger. The development of large-scale isostatic presses has become an inevitable trend, which also brings new challenges to electrical control design. requirements. Since the external control signals of small and medium-sized isostatic presses are less, the input and output are about 65 points to 110 points. The control signal is relatively concentrated, and the distance of the control signal line is short, so a centralized control form in which a rack of programmable logic controller (PLC...

AI Technical Summary

Problems solved by technology

This will inevitably increase the cost and the unreliability of the system, and there will be defects such as large transmission errors and poor maintainability.

How to effectively and centrally collect and control a large number of scattered peripheral actuators, improve the reliability and anti-interference ability of the system, and realize stable and reliable control is a difficult problem to be solved for large isostatic presses

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