Rapid suppressing device of high-speed hydraulic stamping press

Abstract

The invention discloses a rapid suppressing device of a high-speed hydraulic stamping press. The rapid suppressing device of the high-speed hydraulic stamping press mainly comprises a force transfer bar, plunger return cylinders, a short-stroke plunger cylinder, force transfer clamp jaws and drivers. The rapid suppressing device has a stroke switching function and a short-stroke rapid pressure buildup function, can be used as a suppressing actuator of the high-speed hydraulic stamping press to achieve long-stroke high-speed movement of the hydraulic stamping pressure and rapid pressure buildupduring workpiece stamping; and meanwhile, the installed power of the hydraulic stamping press is reduced, and energy efficiency is optimized.

Description

technical field [0001] The invention relates to a pressing device of a hydraulic press, in particular to a fast pressing device of a high-speed stamping hydraulic press. Background technique [0002] The high-speed stamping hydraulic press has a high working frequency and a fast running speed of the slider. In the low-pressure operation stages such as fast down and return, the slider's own weight and accumulator technology can be used to realize the high-speed operation of the slider under low power. However, the traditional hydraulic pressure of the high-speed stamping hydraulic press The volume of the control chamber of the cylinder drive method is large. In order to ensure a fast enough pressure build-up speed when entering the high-pressure pressing stage, a large instantaneous power must be provided. Therefore, the traditional high-speed stamping hydraulic press often has power gaps during the entire working cycle. The matching phenomenon has led to problems such as red...

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Problems solved by technology

[0002] The high-speed stamping hydraulic press has a high working frequency and a fast running speed of the slider. In the low-pressure operation stages such as fast down and return, the slider's own weight and accumulator technology can be used to realize the high-speed operation of the slider under low power. However, the traditional hydraulic pressure of the high-speed stamping hydraulic press The control volume of the cylinder drive mode is large. In order to ensure a fast enough pressure build-up speed when entering the high-pressure pressing stage, a large instantaneous power must be provided. Therefore, the traditional high-speed stamping hydraulic press often has a power gap during the entire working cycle The matching phenomenon has led to problems such as redundant installed power and waste of empty consumption. In addition, the traditional hydraulic cylinder drive method needs to be equipped with a filling valve. It takes a certain amount of time to open and close the filling valve, resulting in a decline in the working efficiency of high-speed stamping hydraulic presses.

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