基于负载口独立的高速液压机四角调平系统与控制

doi:10.3901/JME.2025.24.326

机械工程学报 ›› 2025, Vol. 61 ›› Issue (24): 326-338.doi: 10.3901/JME.2025.24.326

• 交叉与前沿 • 上一篇

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基于负载口独立的高速液压机四角调平系统与控制

黄海鸿^1,2, 陈黄祥^1,2, 李磊^1,2,3, 刘琼^3,4, 徐宇航^1,2, 杨晨⁴, 李贵闪³

1. 合肥工业大学机械工业绿色设计与制造重点实验室合肥 230009;
2. 合肥工业大学机械工程学院合肥 230009;
3. 合肥合锻智能制造股份有限公司合肥 230601;
4. 安徽理工大学机械工程学院淮南 232001

收稿日期:2025-01-12 修回日期:2025-07-11 发布日期:2026-01-26
作者简介:黄海鸿(通信作者)，男，1980年出生，博士，教授，博士研究生导师。主要研究方向为绿色制造、再制造与回收再资源化等。E-mail：huanghaihong@hfut.edu.cn
陈黄祥，男，2000年出生。主要研究方向为机电液系统绿色设计及控制。E-mail：charming_hex@163.com
基金资助:
国家自然科学基金联合基金(U20A20295);合肥市博士后科研“复合材料高速模压成形液压装备的关键技术研发”资助项目。

Design and Control of Four Corner Leveling System Based on Independent Metering for High-speed Hydraulic Presses

HUANG Haihong^1,2, CHEN Huangxiang^1,2, LI Lei^1,2,3, LIU Qiong^3,4, XU Yuhang^1,2, YANG Chen⁴, LI Guishan³

1. Key Laboratory of Green Design and Manufacturing for Machinery Industry, Hefei University of Technology, Hefei 230009;
2. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009;
3. Hefei Metal Forming Intelligent Manufacturing Co. Ltd. Hefei 230601;
4. School of Mechanical Engineering, Anhui University of Science and Technology, Huainan 232001

Received:2025-01-12 Revised:2025-07-11 Published:2026-01-26

摘要/Abstract

摘要： 液压成形装备广泛应用于大吨位、大尺寸的冲压、锻造等成形过程，需要高性能的调平系统保证装备的成形精度，但传统的对角力偶调平系统及其等同控制策略不能准确地消除倾斜力矩，影响工件的成形质量。针对上述问题，设计一种基于负载口独立的高速液压机四角调平电液系统，并提出一种基于泵-阀联合的对角交叉-均值耦合同步控制策略。在出口位移控制设计上，以各调平缸的跟踪误差为负反馈输入、误差均值及对角差值作为补偿输入至滑模控制器中，从而实现各缸的精准跟踪及同步控制；在入口压力控制设计上，根据工况调整压力伺服阀置于左、右最大开口处，使得流入调平缸的流量最大、压力最低；在泵出口流量控制设计上，根据调平缸所处工况确定电机转速。搭建液压机四角调平试验平台，结果表明所提出调平控制策略相较传统等同控制策略在同步精度上提升了9.26%；同时由于负载口独立的节能特性，在控制策略的作用下，系统功耗降低了54%。研究对高速液压成形装备的调平系统研发具有工程价值。

关键词: 四角调平系统, 负载口独立, 对角交叉, 同步控制, 节能

Abstract: Hydroforming equipment is widely used in large tonnage, large size stamping, forging and other forming processes. Hence, high performance leveling system is needed to ensure the forming accuracy of the equipment. However, the traditional diagonal couple leveling system and its identity control strategy cannot accurately eliminate the inclination torque, which affects the forming quality of the workpiece. To solve the above problems, a four-corner leveling electro-hydraulic system based on independent metering for high-speed hydraulic presses is designed. In terms of leveling control, a diagonal cross and mean coupled synchronous control strategy based on pump-valve coordinate control is proposed. For the meter-out displacement controller design, the tracking error of each leveling cylinder is taken as negative feedback input, and the mean of tracking error and diagonal error are taken as compensation input into the sliding mode controller, so as to achieve accurate tracking and synchronous control of each cylinder. For the meter-in pressure controller design, the pressure servo valve is adjusted according to the working mode at the left and right maximum opening, so that the flow into the leveling cylinder is maximum and the pressure is minimum. For the pump flow controller design, the motor speed is determined according to the working mode of the leveling cylinder. Finally, an experimental platform for four-corner leveling of hydraulic press was built. The experimental results show that compared with the traditional identity control strategy, the proposed leveling control strategy improves the synchronization accuracy by 9.26%. At the same time, due to the energy-saving characteristics of the independent metering system, the power consumption of the system is reduced by 54% under the action of the control strategy. This study shows practical significance for the research and development of leveling system of high-speed forming equipment.

Key words: four-corner leveling system, independent metering valve control, diagonal crossed, synchronous control, energy saving

中图分类号:

TH137

黄海鸿, 陈黄祥, 李磊, 刘琼, 徐宇航, 杨晨, 李贵闪. 基于负载口独立的高速液压机四角调平系统与控制[J]. 机械工程学报, 2025, 61(24): 326-338.

HUANG Haihong, CHEN Huangxiang, LI Lei, LIU Qiong, XU Yuhang, YANG Chen, LI Guishan. Design and Control of Four Corner Leveling System Based on Independent Metering for High-speed Hydraulic Presses[J]. Journal of Mechanical Engineering, 2025, 61(24): 326-338.

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基于负载口独立的高速液压机四角调平系统与控制

Design and Control of Four Corner Leveling System Based on Independent Metering for High-speed Hydraulic Presses

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