Optimum design method of drawing processing technology locus of servo press

Abstract

The invention discloses an optimum design method of a drawing processing technology locus of a servo press. The optimum design method comprises the following steps of establishing a general mathematical model used for describing a movement locus of a slider block of the servo press by utilizing a Fourier series theory; establishing a drawing processing technology mode of the servo press by utilizing the acceleration and deceleration characteristic of a servo motor; establishing a crank acceleration and deceleration mathematical model based on a quintic polynomial; selecting an optimum design variable and establishing all kinds of constraint conditions which need to be met during operation of a press, the servo motor and a transmission manipulator; establishing an optimum target function; obtaining the drawing processing technology locus with a minimum stamping period of the servo press. The optimum design method adopts the Fourier series theory to construct the general mathematical model of a transmission mechanism of the servo press at high precision, and is suitable for any transmission mechanism configuration and different mechanism sizes, and is strong in universality. The optimum design method adopts a compound optimization algorithm and a computing method of classifying the constraint conditions, so that the optimal computation efficiency is high to meet the engineering instantaneity requirement.

Description

technical field [0001] The invention belongs to the technical field of servo press applications, and relates to a method for designing a stamping process track of a servo press, in particular to an optimal design method for a servo press drawing process track. Background technique [0002] The servo press represents the technological frontier and the latest level of the development of the current press field. Compared with the traditional mechanical press, the most prominent advantage of the servo press is that the movement track of the servo press slider can be set according to the stamping process requirements of the parts, which greatly improves the working performance and process adaptability of the press. Using the servo press to process parts, on the one hand, the forming quality of the parts can be improved by reducing the speed of the slider in the working area; on the other hand, the operating cycle of the press can be reduced by increasing the speed of the slider i...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an optimal design method of the deep-drawing processing trajectory of the servo press, which solves the need to re-establish its forward and reverse mathematical models when the configuration or size of the transmission mechanism changes. Poor performance, and the need to offset the process trajectory to meet the transfer time requirements of the manipulator, resulting in a reduction in stamping production tact

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