An electro-hydraulic hybrid press and its control method

A control method and press technology, applied in the direction of presses, punching machines, manufacturing tools, etc., can solve the problems of low energy use efficiency, high energy consumption of presses, and increased energy conversion links, etc., to improve work efficiency and motion accuracy, The effect of reducing the use of parts and floor space, reducing the use of hydraulic lines
CN107538776BActive Publication Date: 2019-04-23HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2019-04-23

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Abstract

The invention discloses an electro-hydraulic mix press machine and a control method thereof. An upper beam plate of a press machine body is provided with two vertical hydraulic cylinders, and the twohydraulic cylinders and corresponding workbenches form a left working unit and a right working unit. For the left working unit and the right working unit, a mechanical drive unit and a hydraulic driveunit which are used in common are arranged. The mechanical drive unit is composed of a drive motor through an electromagnetic clutch, an electromagnetic brake and a feed screw nut transmission mechanism driven by a gear pair. According to the load characteristics of the working process of a hydraulic machine, the mechanical drive unit or the hydraulic drive unit is selected to provide energy forthe two working units. According to the electro-hydraulic mix press machine, by means of the arrangement of the two hydraulic cylinders and the mechanical drive unit, rigid connection is achieved to keep a synchronous moving manner, the potential energy of moving components is recovered, the energy loss is reduced, the advantages of hydraulic transmission and the advantages of mechanical transmission are composited, and the working efficiency and precision of the press machine are effectively improved.
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Description

technical field

[0001] The present invention relates to a press machine and its control method, in particular to a press machine with electro-hydraulic hybrid dual actuators and its control method, which is used to maintain the higher efficiency of the drive system and reduce the energy in the working process of the press machine Loss, reduce material consumption and parts usage in the press manufacturing process, improve the movement speed and precision of the moving parts of the press actuator, and improve the working efficiency of the press. Background technique

[0002] As an important part of the forming equipment, the hydraulic press has a stable transmission and simple control, and has a wide range of applications. However, there are many energy conversion links in the hydraulic press, and the energy use efficiency is low. There are problems of load characteristics and drive mismatch and potential energy waste. When the hydraulic transmission is working, the noise and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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