Pressing device closed-cycle control system

Abstract

The present invention relates to a closed loop control system of a press, which pertains to the technical field of a control system of the press. The present invention is mainly characterized in that a coder is connected and arranged at the relevant moving part by an industrial field bus, the industrial field bus is connected with DeviceNet host station, and the DeviceNet host station exchanges data with a PLC programmable logic controller; a touch screen and an office computer adopt a closed loop system which consists of Ethernet and the PLC programmable logic controller; the present operation of a lathe can be reflected in real time under the support of various software programs; by using the closed loop control system, the safety of the lathe can be greatly increased, an automatic production line interface is arranged, the real-time operation information of the lathe can be displayed on the touch screen in the form of character, flow chart, sketch map, and the like, for convenient understanding, the statistics of relevant parts can be carried out according to the design parameters of the lathe so as to remind users of regular maintenance. The present invention can obviously increase the work efficiency and facilitate the arrangement and statistics of the work for supervisors.

Description

technical field [0001] The invention relates to a press closed-loop control system, which belongs to the technical field of press control systems. Background technique [0002] Most of the current closed-type presses adopt an open-loop control system consisting of programmable logic controller PLC as the main controller, some switch input points reflecting the specific state of the machine tool, and some switch value output points for driving actions, and do not have real-time operation status feedback of the machine tool. Devices, that is, there is no detection and control system that reflects the operating status of the machine tool in real time, which has a great impact on the safety, reliability and automation of the machine tool. [0003] 1) From a safety point of view, during the movement of the object, the existing open-loop control system can only passively make corresponding judgments based on the detection signals of the detection mechanism installed at the corresp...

AI Technical Summary

Problems solved by technology

[0004] 2) From the perspective of use, the adjustment of the mechanical movement position can only be controlled manually due to the lack of a detection device that moves synchronously with the mechanical object, which is unsatisfactory in terms of efficiency and accuracy, and cannot adapt to assembly line operations. needs

[0005] 3) From the perspective of daily maintenance of fault repair, the operation cost of large closed press assembly line operation cannot bear the long repair and maintenance time, and the traditional control system cannot be accurate due to the backwardness of the detection mechanism. To point out the specific fault parts and causes requires a lot of inspection and testing work

[0006] 4) From a management point of view, the traditional control system is only a stand-alone operation, without the interface and program design that constitute the network. For work arrangement, management, and statistics, only original manual records can be used, which is not conducive to efficient office and field Working mode of direct dialogue

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