Moment levelling control method for composite press and levelling device of composite press

A composite material and control method technology, applied in special data processing applications, instruments, geometric CAD, etc., can solve the problems of low leveling accuracy, weak anti-interference ability, low leveling efficiency, etc., and achieve simplified mechanical structure, Parameter perturbation and system interference are good, and the effect of improving robustness

Active Publication Date: 2017-10-20
FUJIAN HAIYUAN AUTOMATIC EQUIP CO LTD
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Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a torque leveling control method and a leveling device for a composite material press to solve the problems of low leveling efficiency, low leveling accuracy and low anti-interference ability in a high-speed leveling system Strong and other issues

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  • Moment levelling control method for composite press and levelling device of composite press
  • Moment levelling control method for composite press and levelling device of composite press
  • Moment levelling control method for composite press and levelling device of composite press

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Embodiment Construction

[0043] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0044] figure 1 with Figure 4 A leveling device for a composite press is characterized, comprising a master cylinder 1, a slider for mounting molds 2, a return cylinder 3, and a controller 5 arranged from top to bottom; the hydraulic rod of the master cylinder 1 is fixed on The upper end surface of the slider 2, the hydraulic rod of the return cylinder 3 is fixed on the lower end surface of the slider 2; the four corners below the slider 2 are respectively provided with leveling hydraulic cylinders; the leveling mechanism also includes a master cylinder 1 first displacement sensor 11 for displacement signals, first pressure sensor 31 for collecting pressure signals of return cylinder 3, and second displacement sensor 41 for collecting displacement signals of the leveling hydraulic cylinder; the controller 5 includes data collection connected by electrical sig...

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Abstract

The invention relates to a moment levelling control method for a composite press and a levelling device of the composite press. According to the moment levelling control method, four levelling hydraulic cylinders are vertically arranged on the lower sides of the four corners of a sliding block, the target levelling output force of each levelling hydraulic cylinder is controlled to act on the sliding block through a sliding mode variable structure control algorithm, so that accurate horizontal control of the sliding block is achieved, and therefore the problems that in a high-speed levelling system, the levelling efficiency is low, the levelling precision is not high, and the disturbance resisting capacity is not high are solved; and meanwhile, in the rapid press process of the press, the optimal sliding mode control algorithm based on the hyperbolic secant function improved reaching law is designed so that the optimal target output leveling force can be obtained and act on the sliding block, and horizontal control over the sliding block can be achieved as fast as possible and as stably as possible, the situation that in the levelling process, a levelling system has great impact and vibration on a main cylinder is improved, and the stability and the levelling precision of the system are improved.

Description

Technical field [0001] The invention relates to a passive torque leveling control method, in particular to a torque leveling control method and a leveling device for a composite material press. Background technique [0002] The composite press is one of the important equipment for manufacturing new composite products. Its advantages are strong automation, simple process technology, high molding accuracy, good molding quality, one-time molding and continuous pressing, and it is widely used in aircraft , Aerospace, submarine, automobile and other high-tech fields. However, in the process of hydraulic press forming, due to the uneven pressure distribution between the main cylinder and the return cylinder, the difference in the shape and temperature of the composite product, the system has strong eccentric load characteristics, such as the eccentric load caused by the above reasons. , Will cause the slider to tilt, thereby affecting the accuracy of composite products and even damage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/54G06F17/50
CPCB29C70/54G06F30/17
Inventor 杜恒蔡文杰田述清徐志明谢剑林陈远施跃文王琳陈淑梅陈晖
Owner FUJIAN HAIYUAN AUTOMATIC EQUIP CO LTD
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