Bidirectional couple four-corner levelling control system

Abstract

The invention relates to a bidirectional couple four-corner levelling control system, comprising a slider, levelling cylinders, displacement sensors and a hydraulic control system. The upper and lower ends of the four corners of the slider are respectively provided with levelling cylinders; the levelling cylinders at the upper ends of the four corners of the slider form a torque group capable of applying couples with equal magnitude and opposite directions with levelling cylinders at the lower ends of the diagonals of the slider; the displacement sensors are also arranged at the four corners of the slider; a pumping set of the hydraulic control system is communicated with a pressure safety valve and a filter by a pipe; the filter is connected with a pressure gauge, an energy accumulator and proportional direction valves; and the proportional direction valves are respectively connected with levelling cylinders at the upper and lower ends of the four corners of the slider. The system has the following advantages: the system realizes levelling the press slider by utilizing the bidirectional couple levelling principle, thus not only shortening the levelling response time and improving the slider levelling precision and press production efficiency, but also avoiding loss of the main tonnage of the hydropress, substantially saving energy and lowering the production cost.

Description

Technical field [0001] The invention belongs to the field of hydraulic press machinery, and particularly relates to a bidirectional coupler four-corner leveling control system for special metal electrode processing and isothermal forging hydraulic presses. Background technique [0002] With the development of the titanium industry, the specifications of forgings have become larger and larger, and the corresponding press tonnages have also become larger. The demand for presses for some aviation forgings has exceeded 20,000 tons. Therefore, the demand for titanium, zirconium and titanium and zirconium alloys The forging precision requirements of forgings are getting higher and higher. The typical structure of the hydraulic press currently used for processing special metal electrodes is a three-beam four-column type. The layout of the main cylinder and slider of the hydraulic press is that the four main cylinders are installed in the middle of the upper beam, and the slider is conne...

AI Technical Summary

Problems solved by technology

In addition, because the distance between the four leveling cylinders is small, that is, the leveling torque is small, not only the leveling response time is long, the leveling accuracy and production efficiency are low, but also it is easy to cause the loss of the main tonnage of the press and waste energy

Images