A double-function buffer cylinder for a forging manipulator

Abstract

The invention discloses a double-function buffering cylinder for a forging manipulator and a hydraulic system thereof. The double-function buffering cylinder mainly comprises an oil source oil supply port, an oil source oil return port, a proportional direction valve, a first overflow valve, a second overflow valve, an electromagnetic ball valve, a two-position three-way reversing valve, a buffering cylinder body, an oil tank, a safety valve set, an energy accumulator and a one-way throttle valve. According to the double-function buffering cylinder for the forging manipulator and the hydraulic system thereof, the passive buffering function and the function of controlling the speed in the buffering and resetting process can be realized for the forging manipulator, oil inside the cylinder is recycled through the energy accumulator, and the energy consumption is small; proportional control over the displacement can be realized in the active feeding process of the hydraulic cylinder.

Description

technical field [0001] The invention relates to a hydraulic buffer cylinder, in particular to a buffer cylinder and its hydraulic system. Background technique [0002] The forging manipulator is an important auxiliary operation equipment that coordinates with the hydraulic press. The harsh and complex forging conditions require the forging manipulator to have both active feeding and passive buffering functions. After searching the prior art, it is found that patent CN102744345 A and patent CN 101704059 A respectively disclose a buffer cylinder hydraulic system of a forging manipulator. Its shortcoming: it only has a passive buffer function, which limits the flexibility of the clamp movement and increases the load of the forging manipulator. The structure of the buffer cylinder is relatively complicated, and the hydraulic system has a buffer reset speed that cannot be adjusted, and the overflow loss during the buffer process is large. Contents of the invention [0003] Th...

AI Technical Summary

Problems solved by technology

Its disadvantages: it only has a passive buffer function, which limits the flexibility of the clamp movement and increases the load of the forging manipulator

The structure of the buffer cylinder is relatively complicated, and the hydraulic system has a buffer reset speed that cannot be adjusted, and the overflow loss during the buffer process is large

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