Electrohydraulic pressurizing cylinder and pressing machine equipment with same

Abstract

The invention provides an electrohydraulic pressurizing cylinder and pressing machine equipment with the same, wherein the electrohydraulic pressurizing cylinder can convert a lead screw nut motion into a straight reciprocating motion. The electrohydraulic pressurizing cylinder is characterized in that a motor is provided with an electromotion cylinder piston through a lead screw and a nut; the electromotion cylinder piston is outwards provided with a prepressing oil chamber I, a plunger oil chamber II and a pressurizing oil chamber III in sequence, wherein an electromotion cylinder piston end is provided with a plunger; the plunger penetrates through the prepressing oil chamber I, the plunger oil chamber II and the pressurizing oil chamber III through a connecting rod; a pressurizing cylinder piston is arranged outside of the pressurizing oil chamber III and is arranged on the top end of the connecting rod; the pressurizing cylinder piston is externally provided with a pressing head, and the pressing head stretches out of a cylinder body again; and the prepressing oil chamber I is connected with an oil storage device. The electrohydraulic pressurizing cylinder has large output force, the operation is convenient and the hydraulic transmission is stable, and the electrohydraulic pressurizing cylinder is adaptive to the requirements of a punch forming technology or a pressure placing technology; and the pressing machine equipment utilizes the press cross-sectional area ratio due to the different sizes of the electrohydraulic pressurizing cylinders, so that a pressure effect that the pressure is improved by a plurality of times of tens of times can be realized.

Description

technical field [0001] The invention relates to an electric booster cylinder and an electro-hydraulic booster cylinder used in stamping, assembly, blanking, flanging, riveting, punching, embossing and other processes in many industries such as machinery, automobiles, electrical appliances, and hardware. Press equipment for press cylinders. Background technique [0002] The electric cylinder (also known as the electric push rod) converts the rotational motion of the motor into linear reciprocating motion through a pair of screw nuts. The main features of the electric cylinder are simple structure, convenient operation, easy maintenance, clean working environment, especially good synchronization, which can realize remote control and centralized control, and can be operated as long as it is connected to electricity. [0003] Furthermore, in the case of low working frequency, the cost of air cylinders and hydraulic cylinders is also high, and it is necessary to configure air s...

AI Technical Summary

Problems solved by technology

The load of the electric cylinder can be designed according to different application load requirements, but the maximum output force is limited due to the structure, material and force transmission of the screw nut.

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