Mechanical-hydraulic hybrid drive presses

Abstract

The invention discloses a mechanical hydraulic combination-drive pressing machine, which comprises a mechanical power dive system and a hydraulic power drive system, wherein two systems can respectively work independently and also can work simultaneously. When the mechanical power drive system works independently, the performance is like that of an ordinary mechanical pressing machine, and a hydraulic cylinder can be used as the hydraulic cushion of the ordinary mechanical pressing machine; when the hydraulic power drive system of the mechanical hydraulic combination-drive pressing machine works independently, the characteristic that the hydraulic cylinder is small in inertia can be brought into full play, and a lower slider is driven to carry out high-frequency and small-range up-and-down movement, so that the punching stroke is greatly reduced and high-speed pressing is realized; when the mechanical power drive system and the hydraulic power drive system work simultaneously, the mechanical power drive system drives the slider-crank mechanism of the pressing machine to work, and the hydraulic power drive system can drive the lower slider to generate high-frequency vibration through the hydraulic system while an upper slider drives the lower slider to move downwards, so that the pressing machine has the working manner of vibration machining and satisfies the requirement of special techniques.

Description

technical field [0001] The invention relates to a press, in particular to a mechanical-hydraulic hybrid drive press, which belongs to the field of electrical and electromechanical technology. Background technique [0002] At present, presses are widely used in sheet metal stamping, stretching, pressure forming and other processing. Common presses include mechanical presses and hydraulic presses, which are generally considered mechanical presses. The mechanical press is mainly a crank slider mechanism, which is mainly composed of a drive motor, a reduction mechanism, a flywheel, a clutch, a crankshaft (or eccentric wheel), a connecting rod, a slider, a bed, a guide rail, and an operating table. Its basic working principle is: the motor drives the deceleration mechanism to drive the flywheel to rotate. When there is no operation command, the connection between the flywheel and the crankshaft is disconnected, and the crank-slider mechanism composed of the crankshaft (or eccent...

AI Technical Summary

Problems solved by technology

Due to the different processing technology requirements of different pressure-formed products, many different performance and functional requirements will be put forward for the press, such as additional vibration during the downward movement of the slider, high-frequency and low-amplitude stamping near the bottom dead center of the slider, For the molding speed planning and control in the product molding process, ordinary mechanical presses cannot meet the above special processing technology requirements. Therefore, according to the different processing technology requirements of the molding products, it is necessary to develop Various types of presses, or special presses that can meet the requirements of multiple processing techniques at the same time

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