平麵磨床的使用技巧有哪些
常見的墊圈、摩擦片、樣板、薄板等薄片零件,由於剛性差、散熱困難、熱re處chu理li後hou彎wan曲qu,裝zhuang夾jia時shi引yin起qi夾jia緊jin變bian形xing,磨mo削xue時shi易yi翹qiao曲qu,通tong常chang采cai用yong磁ci力li吸xi盤pan在zai平ping麵mian磨mo床chuang上shang磨mo削xue加jia工gong,磨mo削xue完wan成cheng後hou,去qu掉diao磁ci性xing吸xi引yin力li,薄bo片pian工gong件jian恢hui複fu原yuan狀zhuang,難nan以yi保bao證zheng加jia工gong精jing度du。如ru采cai用yong以yi下xia幾ji種zhong裝zhuang夾jia方fang式shi,保證薄片工件在自由狀態下進行定位與夾緊,利用雙端麵進行磨削加工,可取得更好效果,滿足零件加工精度要求。
A. 墊彈性墊片裝夾方式
在平麵磨床上磨削上述薄片工件時,采用彈性夾緊機構,使薄片工件在自由狀態下實現定位與夾緊。在工件與磁性工作台之間墊一層0.5mmhoudexiangjiao,danggongjianshoucixingxiyinlizuoyongshi,xiangjiaobeiyasuo,danxingbianxingbianxiao,congerkemoxuechugongjiandepingzhipingmian。fanfumoxuejici,kemanzujiagongjingduyaoqiu。
B. 機械裝夾方式
利li用yong平ping麵mian磨mo床chuang附fu件jian中zhong的de平ping口kou鉗qian將jiang薄bo片pian工gong件jian借jie磁ci性xing工gong作zuo台tai把ba小xiao型xing平ping口kou鉗qian吸xi住zhu,由you於yu平ping口kou鉗qian有you一yi定ding高gao度du,因yin此ci,鉗qian口kou受shou磁ci力li小xiao。采cai用yong進jin給gei量liang逐zhu漸jian減jian少shao的de辦ban法fa磨mo平ping薄bo片pian工gong件jian一yi平ping麵mian後hou取qu下xia,這zhe時shi把ba已yi磨mo好hao的de一yi平ping麵mian放fang到dao磁ci性xing工gong作zuo台tai上shang,再zai進jin行xing磨mo削xue薄bo片pian工gong件jian的de另ling一yi平ping麵mian,反fan複fu磨mo削xue幾ji次ci,兩liang平ping麵mian的de平ping麵mian度du達da到dao要yao求qiu。
C. 用臨時措施加強薄片工件的剛性
caiyonghuanyangshuzhijieheji,jiangbopiangongjianzaiziyouzhuangtaixiazhandaoyikuaipingbanshang。pingbanliantongbopianyiqifangdaocilixipanshang。mopingbopianyiduanpingmianhou,zaijiangbopiangongjiancongpingbanshangquxialai,yimopingdeyimianfangdaocilixipanshang,zaimoxuebopiangongjiandelingyiduanpingmian。youyuhuanyangshuzhizaiweiyinghuazhiqianyouliudongxing,takeyitianpingbopiangongjianyupingbanzhijiandejianxi。danghuanyangshuzhiyinghuahou,gongjianyupingbanzhanjiezaiyiqi,chengweiyigezhengti,congerdadazengqianglegongjiandegangxing。zaicilixiyinxia,bopiangongjianbuhuichanshengjiajinbianxing,weimoxuechupingzhipingmianchuangzaoletiaojian。yekeyonghouyouzhidaitihuanyangshuzhitianchongbopiangongjianyucilixipanzhijiandejianxi,zengqianggongjiandegangxing,tongyangkeyishoudaolianghaodexiaoguo。
D. 真空裝夾方式
利用大氣的壓力裝夾薄片工件來進行磨削加工。其工作原理為:夾(jia)具(ju)體(ti)上(shang)設(she)有(you)橡(xiang)膠(jiao)密(mi)封(feng)圈(quan),把(ba)薄(bo)片(pian)工(gong)件(jian)放(fang)在(zai)橡(xiang)膠(jiao)密(mi)封(feng)圈(quan)上(shang),從(cong)而(er)使(shi)工(gong)件(jian)與(yu)夾(jia)具(ju)體(ti)之(zhi)間(jian)形(xing)成(cheng)密(mi)封(feng)腔(qiang)。用(yong)真(zhen)空(kong)泵(beng)將(jiang)室(shi)內(nei)空(kong)氣(qi)從(cong)抽(chou)氣(qi)孔(kong)抽(chou)出(chu),這(zhe)時(shi)工(gong)件(jian)被(bei)夾(jia)緊(jin)。由(you)於(yu)夾(jia)緊(jin)力(li)小(xiao),可(ke)采(cai)用(yong)圓(yuan)周(zhou)磨(mo)削(xue)方(fang)法(fa)進(jin)行(xing)磨(mo)削(xue)加(jia)工(gong)。當(dang)磨(mo)削(xue)好(hao)薄(bo)片(pian)工(gong)件(jian)一(yi)端(duan)平(ping)麵(mian)後(hou),磨(mo)削(xue)薄(bo)片(pian)工(gong)件(jian)另(ling)一(yi)端(duan)平(ping)麵(mian)時(shi),可(ke)采(cai)用(yong)上(shang)述(shu)方(fang)式(shi)進(jin)行(xing),同(tong)樣(yang)可(ke)得(de)到(dao)滿(man)意(yi)的(de)結(jie)果(guo)。
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