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1. CN101142039 - Die cushion control device

Office China
Application Number 200680008657.6
Application Date 13.03.2006
Publication Number 101142039
Publication Date 12.03.2008
Grant Number 100551574
Grant Date 21.10.2009
Publication Kind C
IPC
B21D 24/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
24Special deep-drawing arrangements in, or in connection with, presses
02Die-cushions
CPC
B21D 24/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
24Special deep-drawing arrangements in, or in connection with, presses
02Die-cushions
Applicants Komatsu Mfg Co., Ltd.
株式会社小松制作所
小松产机株式会社
Inventors Suzuki Yuichi
铃木裕一
Agents ligui liang
中科专利商标代理有限责任公司
Priority Data 075336/2005 16.03.2005 JP
Title
(EN) Die cushion control device
(ZH) 模具缓冲机构控制装置
Abstract
(EN)
A die cushion control device (40) for controlling the moving up/down speed of a die cushion pad(15) based on specified pressure pattern (56) and positional pattern (54), wherein a position/pressure control switching unit (51) always monitors and compares a pressure-use speed command signal pc according to a pressure deviation signal ep and a position-use speed command signal vhc according to a position deviation signal eh, and selects whichever speed command signal is smaller for sending to a speed control unit (53). Since a pressure-use speed command signal pc and a position-use speed command signal hc are always monitored and either one of them is selected, a pressure change and a position change can be recognized accurately to allow switching between a pressure control and a position control quickly, constantly and positively.

(ZH)

一种根据规定的压力图形(56)及位置图形(54)控制模具缓冲垫(15)的升降速度的模具缓冲机构控制装置(40),其中,位置/压力控制切换部(51),始终监控、比较与压力偏差信号(ep)对应的压力用速度指令信号(υpc)和与位置偏差信号(eh)对应的位置用速度指令信号(υhc),选择两者中小的一方的速度指令信号向速度控制部(53)传输。由于始终监控压力用速度指令信号(υpc)和位置用速度指令信号(υhc),选择某一方,因此,能够准确地把握压力的变化及位置的变化,能够迅速且稳定、可靠地切换位置控制和压力控制。