Alternating current servo motor-driven type hydraulic radial forging machine with mechanical travel adjusting function

Abstract

The invention relates to an alternating current servo motor-driven type hydraulic radial forging machine with a mechanical travel adjusting function. The hydraulic type radial forging machine is characterized in that a main working mechanism adopts a servo motor to adjust the position of a forging die through a planetary gear system and a planetary roller and screw rod pair two-stage speed reduction and boosting mechanism, so the accuracy is high, and the position is accurately controlled; an oil pump servo motor is used for controlling the oil feeding amount, and a rotary valve servo motor is used for controlling the opening and closing time of oil cavities at the two sides of a piston rod, so the forging die speed, forging distance, forging frequency and forging curves can be flexibly designed and controlled, the flexibility is very high, and the requirement of cold and hot forging of various materials can be met; a small-travel hydraulic cylinder is used for forging, so the forging force is large, and the forging is stable; the structure is simple, the reliability is high, and the cost is lower.

Description

technical field [0001] The invention belongs to the technical field of radial forging machines in mechanical forming equipment, and in particular relates to a hydraulic radial forging machine driven by an AC servo motor and with mechanical stroke adjustment. Background technique [0002] At present, the radial forging machines widely used in the market are mainly divided into three categories: radial forging machines transformed from ordinary presses, hydraulic radial forging machines, and mechanical and hydraulic hybrid radial forging machines. These three radial forging machines have their own distinctive features, and can basically meet the current production needs of shaft and tube parts. [0003] The radial forging machine transformed from an ordinary press has four forging dies. The upper die and the lower die are respectively fixed on the upper and lower cutting boards of the press. The upper cutting board is directly connected to the hydraulic cylinder. The lower cut...

AI Technical Summary

Problems solved by technology

However, mechanical and hydraulic radial forging machines cannot adjust the forging curve because the main working mechanism is a crank slider mechanism; when forging at low speed, because the system has less energy storage, it can only achieve forging with a small feed rate , not suitable for some occasions that require low strain rate and large displacement

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