Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydraulic press punching active damping control device

An active vibration reduction and control device technology, applied in the field of stamping hydraulic presses, can solve the problems of energy consumption, the press cannot work at full tonnage, and large volume, and achieve the effect of convenient installation

Inactive Publication Date: 2008-02-13
GUANGDONG UNIV OF TECH
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires an independent buffer system (hydraulic or spring), which not only has a complex structure, large volume, high cost, but also consumes energy, so that the press cannot work at full tonnage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic press punching active damping control device
  • Hydraulic press punching active damping control device
  • Hydraulic press punching active damping control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] The principle diagram of the present invention is shown in Figure 1, including a stop valve 1, a stroke flow valve 2, a one-way valve 3, a two-position two-way valve 4, and an accumulator 5, wherein the accumulator 5 passes through the one-way valve 3 in sequence , Stroke flow valve 2, cut-off valve 1 are connected to the oil inlet of the main cylinder 6 of the hydraulic machine, the two-position two-way valve 4 is connected between the oil inlet of the stop valve 1 and the accumulator 5, the slider of the main cylinder 6 of the hydraulic machine 7 is fixed with a wedge 8, and the pulley 2A of the stroke flow valve 2 is placed on the side of the wedge 8, and when the slider 7 descends and the punch is about to touch the workpiece, the pulley 2A of the stroke throttle valve 2 and the pulley 2A fixed on the slide Wedge 8 on block 7 is in contact. The above-mentioned stroke flow valve 2 is a stroke throttle valve, or a stroke speed regulating valve. In this embodiment, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a punching active damping controller for hydraulic press; the present invention comprises a cut-off valve, a stroke flow valve, a check valve, a two-position two-way valve and an accumulator; the accumulator is connected with an oil inlet of the hydraulic press main oil cylinder by the check valve, stroke flow valve and cut-off valve and the two-position two-way valve is equipped between the cut-off valve oil inlet and the accumulator; a sliding block of the hydraulic press main oil cylinder is fixed with a wedge block and a pulley of the stroke flow valve is equipped on the side of the wedge block; when the sliding block falls and a male die contacts the work piece, the pulley of the stroke flow valve contacts the wedge fixed on the sliding block. The present invention, with the pattern of inlet bypass throttling, realizes the effective control of the male die speed in the process of the hydraulic press punching which reduces the vibration in the process of hydraulic press punching and protect the device; in this way, the mold service life is promoted and working environment is improved. No additional hydraulic system is needed and the bypass throttling energy can be recycled.

Description

Technical field: [0001] The invention relates to a blanking active vibration reduction control device for hydraulic presses, which belongs to stamping hydraulic presses [0002] The innovative technology of the blanking vibration damping control device used. Background technique: [0003] When using a hydraulic press for punching operations, due to the compressibility of the oil and the elastic deformation of the fuselage, a considerable part of the elastic deformation energy is stored; when the blanking ends, the plate breaks, the hydraulic machine loses the load suddenly, and the stored elastic energy will be lost. Instantaneous release causes great shock and vibration, which not only produces huge noise, but also may cause damage to parts or rupture of pipes and damage to molds. [0004] The general damping method belongs to passive damping, that is, using cushioning systems such as buffer cylinders, travel limiting devices, and damping springs. Underneath the rapidly d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B30B15/16B30B15/28
Inventor 孙友松刘伟陈绮丽刘艳章争荣
Owner GUANGDONG UNIV OF TECH