Intelligent press machine with built-in deformation compensation module

Abstract

The invention provides an intelligent press machine with a built-in deformation compensation module, and belongs to the field of press machines, the intelligent press machine comprises a press machine main body, the deformation compensation module and a control module, the press machine main body is used for carrying out forming treatment on a to-be-formed sample; a laser transmitter in the deformation compensation module is connected with an optical fiber sensor and used for transmitting pulse signals to the optical fiber sensor, the optical fiber sensor is arranged on a pre-tightening pull rod of the press machine body and generates reflected light signals, and an optical signal processor is used for processing the reflected light signals to measure strain information of the pre-tightening pull rod. The control module is used for obtaining the actual pressing amount of an upper sliding block in the press machine body according to the strain information, and then machine body deformation is compensated. According to the invention, the actual pressing amount of the upper sliding block is obtained to compensate the deformation of the machine body, so that the problems of deformation of the machine body caused by stress and impact load in the working process of the existing hydraulic machine and insufficient stroke measurement precision of the sliding block caused by the change of the pre-tightening force of the pre-tightening pull rod can be effectively solved.

Description

technical field [0001] The invention belongs to the field of presses, and more particularly, relates to an intelligent press with a built-in deformation compensation module. Background technique [0002] The feeding system and stroke control of the traditional frame structure press need to be used in conjunction with the host control system. Usually, the stroke value of the slider is used as the input signal and the stroke is regulated by the electrical system to complete a servo drive action. However, at present, most frame structure presses are subjected to the forming reaction force during the working process, and the fuselage will produce horizontal and longitudinal deformation, angular deformation and torsional deformation, which greatly affects the stroke measurement accuracy of the slider during the working process. And the pressure body will be subjected to multiple shock loads during long-term work, which will loosen the pre-tightening bolts in the column, and the p...

AI Technical Summary

Problems solved by technology

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide an intelligent press with a built-in deformation compensation module, aiming at solving the problem that the existing press cannot monitor and compensate the deformation of the fuselage in real time

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