
在模具設計中選擇氮氣彈簧應該注意的問題:
1、選擇什麼形式的氮氣彈簧來滿足衝壓工藝的要求?解決這樣的問題通常需要考慮氮氣彈簧彈壓力大小、行程、氮氣彈簧的數量、氮氣彈簧的增壓比。
A、彈壓力的選擇:根據計算所得的衝壓力來選擇氮氣彈簧的數量、型號、每個氮氣彈簧的彈壓力。一般來說,應根據計算所得的衝壓力,加上15%-20%的增加量來選擇氮氣彈簧的彈壓力,更加符合實際情況。因yin為wei,第di一yi,當dang模mo具ju磨mo損sun後hou,會hui出chu現xian間jian隙xi變bian化hua。刃ren口kou變bian鈍dun等deng工gong藝yi參can數shu的de變bian化hua,模mo具ju厚hou度du和he模mo具ju板ban材cai變bian形xing抗kang力li的de不bu一yi致zhi性xing,會hui引yin起qi工gong件jian變bian形xing抗kang力li的de變bian化hua,所suo以yi變bian形xing抗kang力li在zai設she計ji時shi應ying留liu有you餘yu地di。第di二er,氮dan氣qi彈dan簧huang在zai充chong氣qi時shi,高gao壓ya氣qi體ti必bi然ran會hui有you節jie流liu損sun失shi,使shi彈dan力li有you所suo下xia浮fu。第di三san,氮dan氣qi彈dan簧huang的de壽shou命ming很hen長chang,經jing過guo一yi段duan使shi用yong之zhi後hou,高gao壓ya氮dan氣qi會hui有you一yi定ding的de漏lou損sun,造zao成cheng彈dan壓ya力li略lve有you下xia降jiang。
B、氮氣彈簧數量的選擇:yinggenjuchengxingxuqiu,jiehemojujiegoujizhelidiandeweizhi,shimojuzaigongzuoshibuhuichuxianpianzaixianxiang,tongshiyebixushimojutiaozhengfangbian。zheyang,danqidanhuangzaishiyongzhongfangnengyouzugoudeshouming。
C、氮氣彈簧的增壓比的選擇:kegenjudanqidanhuangdetexingquxianhechongyagongyiyaoqiulaixuanze,quedingdanqidanhuangdexinghao。youqishiyaoqiugongzuolipingwenbianhua,huogongzuolijibenhengdingjichushilijiaodashi,quedingzengyabijiugengweizhongyao。
D、氮氣彈簧行程的選擇:不bu論lun哪na一yi種zhong工gong藝yi,選xuan擇ze氮dan氣qi彈dan簧huang時shi,我wo們men總zong希xi望wang氮dan氣qi彈dan簧huang的de總zong高gao度du不bu要yao太tai高gao,以yi免mian發fa生sheng不bu穩wen定ding現xian象xiang及ji在zai模mo具ju上shang安an裝zhuang時shi結jie構gou過guo於yu複fu雜za,且qie行xing程cheng越yue大da,氮dan氣qi彈dan簧huang的de價jia格ge越yue高gao,這zhe一yi點dian對dui獨du立li式shi氮dan氣qi彈dan簧huang尤you為wei重zhong要yao。如ru因yin工gong藝yi需xu要yao,行xing程cheng的de確que較jiao大da,建jian議yi采cai用yong氮dan氣qi彈dan簧huang座zuo板ban係xi統tong,這zhe樣yang可ke以yi減jian少shao模mo具ju高gao度du,提ti高gao氮dan氣qi彈dan簧huang穩wen定ding性xing可ke靠kao性xing。有you時shi為wei了le安an全quan,避bi免mian意yi外wai發fa生sheng,在zai選xuan擇ze氮dan氣qi彈dan簧huang時shi,需xu加jia大da3-5mm安全行程。
2、氮氣彈簧結構形式的選擇:
設(she)計(ji)者(zhe)在(zai)模(mo)具(ju)中(zhong)使(shi)用(yong)氮(dan)氣(qi)彈(dan)簧(huang)時(shi),首(shou)先(xian)需(xu)要(yao)決(jue)定(ding)其(qi)結(jie)構(gou)形(xing)式(shi),根(gen)據(ju)需(xu)件(jian)的(de)衝(chong)壓(ya)工(gong)藝(yi)要(yao)求(qiu)針(zhen)對(dui)模(mo)具(ju)的(de)結(jie)構(gou)形(xing)式(shi),使(shi)用(yong)設(she)備(bei),工(gong)作(zuo)環(huan)境(jing),工(gong)作(zuo)條(tiao)件(jian),模(mo)具(ju)的(de)成(cheng)本(ben)和(he)調(tiao)整(zheng)維(wei)修(xiu)等(deng)因(yin)素(su),綜(zong)合(he)考(kao)慮(lv)。
A、獨立式:目(mu)前(qian)應(ying)用(yong)最(zui)廣(guang)泛(fan)的(de)是(shi)獨(du)立(li)式(shi)氮(dan)氣(qi)彈(dan)簧(huang),它(ta)所(suo)占(zhan)的(de)模(mo)具(ju)空(kong)間(jian)比(bi)較(jiao)小(xiao),安(an)放(fang)緊(jin)固(gu)方(fang)便(bian)靈(ling)活(huo),結(jie)構(gou)形(xing)式(shi)多(duo)種(zhong)多(duo)樣(yang),一(yi)下(xia)幾(ji)種(zhong)不(bu)同(tong)的(de)安(an)裝(zhuang)形(xing)式(shi),不(bu)需(xu)要(yao)任(ren)何(he)附(fu)件(jian)。直(zhi)接(jie)安(an)放(fang)在(zai)模(mo)具(ju)中(zhong)便(bian)可(ke)使(shi)用(yong)。深(shen)受(shou)模(mo)具(ju)設(she)計(ji)者(zhe)歡(huan)迎(ying),是(shi)當(dang)今(jin)設(she)計(ji)者(zhe)首(shou)選(xuan)的(de)設(she)計(ji)形(xing)式(shi)。
B、管路連接式:管(guan)路(lu)連(lian)接(jie)式(shi)一(yi)般(ban)都(dou)應(ying)用(yong)於(yu)在(zai)大(da)型(xing)衝(chong)壓(ya)配(pei)件(jian),大(da)型(xing)覆(fu)蓋(gai)件(jian)。它(ta)采(cai)用(yong)高(gao)壓(ya)管(guan)將(jiang)各(ge)個(ge)獨(du)立(li)氮(dan)氣(qi)彈(dan)簧(huang)連(lian)接(jie)一(yi)起(qi),再(zai)安(an)裝(zhuang)一(yi)個(ge)控(kong)製(zhi)儀(yi)表(biao),使(shi)整(zheng)個(ge)係(xi)統(tong)的(de)各(ge)個(ge)氮(dan)氣(qi)彈(dan)簧(huang)的(de)彈(dan)壓(ya)力(li)等(deng)同(tong),從(cong)而(er)使(shi)整(zheng)個(ge)係(xi)統(tong)融(rong)為(wei)一(yi)體(ti),等(deng)同(tong)於(yu)一(yi)個(ge)獨(du)立(li)式(shi)氮(dan)氣(qi)彈(dan)簧(huang)。從(cong)而(er)求(qiu)得(de)了(le)一(yi)個(ge)較(jiao)大(da)的(de)彈(dan)壓(ya)力(li)及(ji)彈(dan)壓(ya)力(li)傳(chuan)遞(di)的(de)平(ping)衡(heng),提(ti)高(gao)了(le)模(mo)具(ju)的(de)壽(shou)命(ming),保(bao)證(zheng)衝(chong)壓(ya)件(jian)的(de)質(zhi)量(liang)。
