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Flexible control method of forging press

A control method and technology for a forging press, applied in the field of forging press control, can solve the problems of pressure relief shock, severe vibration of pipeline, rupture of hydraulic valve parts, etc.

Pending Publication Date: 2021-09-07
TIANJIN TIANDUAN PRESS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the pressure relief is too slow, the pressure relief time will be too long, and if the pressure relief is too fast, there will be a pressure relief shock phenomenon, that is, the machine will vibrate violently in an instant and make a loud noise, and even pipe rupture and hydraulic valve parts will be damaged.

Method used

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  • Flexible control method of forging press

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Embodiment Construction

[0033] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0034] Such as Figure 1 to Figure 4 Shown, technical scheme of the present invention is:

[0035] A flexible control method for a forging press, based on a pressing speed control method based on the integral separation PID method; real-time monitoring of the slider stroke, aiming at the impact of the unloading process on the shape quality of the wheel, combined with a three-stage pressure relief valve group and a proportional relief valve cosine The curve control method is used to control the flexible pressure relief of the forging press.

[0036] Specifically include the following steps:

[0037] Operation S100: forging speed control, by detecting the speed of the slider of the forging press, and then inputting the flow rate of the oil cy...

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Abstract

The invention discloses a flexible control method of a forging press, and belongs to the technical field of forging press control. The flexible control method of the forging press is characterized by comprising the following steps: S100, forging and pressing speed control: a forging and pressing speed is adjusted by detecting the speed of a sliding block of the forging press and further inputting the flow of an oil cylinder; and S200, flexible pressure control: flexible pressure relief control is realized by controlling the holding pressure of a die assembly cylinder of the forging press and controlling three-stage pressure relief and proportional overflow. By adopting the technical scheme, the invention provides the pressing speed control method based on an integral separation PID method; and the stroke of the sliding block is monitored in real time, and the flexible pressure relief control over the forging press is carried out by combining a three-level pressure relief valve group and a cosine curve control method of a proportional overflow valve according to the influence of an unloading process on the vehicle shape quality of wheels.

Description

technical field [0001] The invention belongs to the technical field of forging press control, and in particular relates to a flexible control method for forging presses. Background technique [0002] At present, with the rapid and steady progress of my country's modernization, the rapid development of aerospace, railway, automobile and other equipment manufacturing industries, the performance requirements for various machine tools are also getting higher and higher. As a pressure processing machine, forging presses are also constantly developing in the direction of high pressure, large flow, automation, etc., and their performance has been greatly improved. my country's large-scale forging presses have reached a relatively advanced level, but forging and forging presses still have problems in terms of forging quality, equipment operation cycle, reliability and production costs. Especially the pressure relief process is an important link in the working cycle of the forging p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J9/20
CPCB21J9/20
Inventor 周正杨莎
Owner TIANJIN TIANDUAN PRESS CO LTD
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