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慢走丝加工工艺及技术要点

文章出处:深圳市mg4155vip平台 精密机械有限公司 人气:12840发表时间:[2020-10-17]


1 DAOYAN

MANZOUSIXIANQIEKAIJICHUANGYINGYONGGUANGFANERYOUZHONGYAO,ZAISULIAOMO、JINGXIDUOGONGWEIJIJINMODESHENGCHANJIAGONGJINCHENGZHONG,NENGQUEBAODEDAOLIANGHAODECHIDUJINGDU,ZHIJIEYINGXIANGMOJUDEZHUANGPEIJINGDU、LINGJIANDEJINGDUYIJIMOJUDEYUNYONGSHOUMINGDENG。YINWEIJIAGONGGONGJIANJINGDUYAOQIUGAO,YINERZAIJIAGONGJINCHENGZHONGRUOYOUYIDIANHULVE,JIUHUIZAOCHENGGONGJIANBAOFEI,TONGSHIYEHUIJIMOJUDEZHIZUOBENQIANHEJIAGONGZHOUQIDAILAIFUMIANYINGXIANG。

ZAICONGSHIMANZOUSIQIEKAIJICHUANGBIANCHENGYUCAOZUOJIAGONGJINCHENGZHONG,JIEHEDUONIANDESHENGCHANSHIJIAN,ZHENDUIJIAGONGJINCHENGZHONGSUOCHUXIANDEBIANXINGWENTIJIYUDAODEKUNNAN,ZONGJIELEJIDIANGONGYICHULIBANFAHEJIAGONGCAOZUOFANGAN

2 TUMOJIAGONGGONGYI

TUMOZAIMOJUZHONGQIZHEHENZHONGYAODEZUOYONG,TADESHEJIXINGZHUANG、CHIDUJINGDUJIZILIAOYINGDUDOUZHIJIEYINGXIANGMOJUDECHONGCAIZHILIANG、YUNYONGSHOUMINGJICHONGYAJIANDEJINGDU。ZAISHIJIANSHENGCHANJIAGONGZHONG,YINWEIGONGJIANMAOPINEIBUDECANLIUYINGLIBIANXINGJIFANGDIANFASHENGDEREYINGLIBIANXING,GUYINGSHOUXIANJIAGONGHAOCHUANSIKONGJINXINGGUANBISHIQIEKAI,JINKENENGBIMIANKAIFANGSHIQIEKAIERFAZUOBIANXING。JIARUSHOUXIANYUGONGJIANMAOPICHIDUERBUNENGJINXINGGUANBIXINGSHIQIEKAI,DUIYUFANGXINGMAOPIJIAN,ZAIBIANCHENGSHIYINGZHUYITIAOXUANHAOQIEKAIDAOLU(HUOQIEKAIFANGXIANG)。

QIEKAIDAOLUYINGYOULIYUQUEBAOGONGJIANZAIJIAGONGJINCHENGZHONGYIZHIYUJIAJU(ZHUANGJIAZHICHENGJIA)BAOCHIZAITONGYIZUOBIAOXI,BIKAIYINGLIBIANXINGDEYINGXIANG。JIAJUGUDINGZAIZUODUAN,CONGHULUXINGTUMOZUOBIAN,ANNISHIZHENFANGXIANGJINXINGQIEKAI,ZHENGGEMAOPIGENJUQIEKAIDAOLUERBEIFENWEIZUOYOULIANGBUFEN。YINWEIXIANJIEMAOPIZUOYOULIANGCEDEZILIAOYUEGEYUEXIAO,MAOPIYOUCEYUJIAJUZHUBUTUOLI,WUFADIKANGNEIBUCANLIUYINGLIERFAZUOBIANXING,GONGJIANYESUIZHIBIANXING。RUOANSHUNSHIZHENFANGXIANGQIEKAI,GONGJIANLIUZAIMAOPIDEZUOBIAN,JIEJINJIACHIBUWEI,DABUFENQIEKAIJINCHENGDOUSHIGONGJIANYUJIAJUBAOCHIZAITONGYIZUOBIAOXIZHONG,GANGXINGJIAOHAO,BIMIANLEYINGLIBIANXING。YIBANZHUANGKUANGXIA,HELIDEQIEKAIDAOLUYINGJIANGGONGJIANYUJIACHIBUWEIFENLIDEQIEKAI

DUANANPAIZAIZONGDEQIEKAICHENGXUJIEWEI,JIJIANGZANTINGDIAN(Bridge)LIUZAIJIEJINMAOPIJIACHIDUANDEBUWEI。

XIAMIANCEZHONGPOUXIYIXIAYINGZHIHEJINCHIXINGTUMODEQIEKAIGONGYICHULI。YIBANZHUANGKUANGXIA,TUMOWAIXINGGUIZESHI,XIANQIEKAIJIAGONGCHANGJIANGYULIUXIANJIEBUFEN(ZANTINGDIAN,JIWEISHIGONGJIANZAIDI1CIDECUGEHOUBUYUMAOPIWANQUANFENLIERYULIUXIADEYIXIAODUANQIEKAIGUIJIXIAN)LIUZAIPINGMIANFANGWEISHANG,DABUFENJINGGEJIESHUHOU,DUIYULIUXIANJIEBUFENZHIZUOYICIQIEKAI,YIHOUZAIYOUQIANGONGXIUMOPINGTAN,ZHEIYANGKEXUEJIANTUMOZAIMANZOUSIXIANQIEKAISHANGDEJIAGONGFEIYONG。

YINGZHIHEJINTUMOYINWEIZILIAOYINGDUGAOJIXINGZHUANGXIAZHANGDENGTESE,DAOZHIJIAGONGSUDUMANQIERONGYIBIANXING,TEBIEZAIQIXINGZHUANGBUGUIZEDEZHUANGKUANGXIA,YULIUXIANJIEBUFENDEXIUMOJIQIANGONGDAILAIHENDADENANDU。YINERZAIMANZOUSIXIANQIEKAIJIAGONGJIEDUANKEDUIGONGYIJINXINGQIADANGDEDIAOZHENG,SHIWAIXINGCHIDUJINGDUDAODAYAOQIU,MIANCHUQIANGONGZHUANGPEIQIANDUIZANTINGDIANDEXIUMOGONGXU。

YINWEIYINGZHIHEJINYINGDUGAO,QIEKAIHOUDUDA,DAOZHIJIAGONGSUDUMAN,GAIBIANBIANXINGYANJUN,DABUFENWAIXINGJIAGONGJIYULIUXIANJIEBUFEN(ZANTINGDIAN)DEJIAGONGJUNCAINA4CIQIEKAIFANGSHIQIELIANGBUFENDEQIEKAICANSHUHEPIANYILIANG(Offset)JUNGONGTONG。DI1CIQIEKAIDIANJISIPIANYILIANGJIADAZHI0.5—0.8mm,YISHIGONGJIANCHONGPEIKAISHINEIYINGLIJIWANQUANGAIBIANBIANXING,ZAIHOUBIAN3CINENGGOUYOUMANZUYULIANGJINXINGJINGGEJIAGONG,ZHEIYANGKESHIGONGJIANZUIZHONGCHIDUDEDAOQUEBAO。

JUTIDEGONGYIPOUXIRUXIA:

(1)预先在毛坯的恰当方位用穿孔机或电火花成形机加工好Φ1.0—Φ1.5mm穿丝孔,穿丝孔中心与凸模概括线间的引进切开线段l长度选取5—10mm。
(2)凸模的概括线与毛坯边缘的宽度应至少确保在毛坯厚度的1/5。
(3)为后续切开预留的衔接部分(暂停点)应挑选在接近工件毛坯重心部位,宽度选取3—4mm。
(4)为补偿改变变形,将大部分的残留变形量留在第1次粗割阶段,增大偏移量至0.5—0.8mm。后续的3次选用精割方式,因为切开余量小,变形量也变小了。
(5)大部分外形4次切开加工完结后,将工件用压缩空气吹干,再用酒精溶液将毛坯端面洗净,凉干,然后用粘结剂或液态快干胶(一般选用502快干胶水)将经磨床磨平的厚度约1.5mm的金属薄片粘牢在毛坯上,再按原先4次的偏移量切开工件的预留衔接部分(注意:切勿把胶水滴进下水嘴或滴到工件的预留衔接部分上,以免造成不导电而不能加工)。
3 凹模板加工中的变形剖析

ZAIXIANQIEKAIJIAGONGQIAN,MOBANYIJINXINGLELENGJIAGONG、REJIAGONG,NEIBUYIFASHENGLEJIAODADECANLIUYINGLI,ERCANLIUYINGLISHIYIGEXIANGDUIPINGHENGDEYINGLITIXI,ZAIXIANQIEKAIQUCHUHENDUOFEILIAOSHI,YINGLISUIZHEPINGHENGZAODAOPOHUAIERKAISHICHULAI。YINER,MOBANZAIXIANQIEKAIJIAGONGSHI,SUIZHEYUANYOUNEIYINGLIDEZUOYONGJIHUOHUAFANGDIANSUOFASHENGDEJIAGONGREYINGLIDEYINGXIANG,JIANGFASHENGBUDINGXIANG、WUGUIZEDEBIANXING,SHIHOUBIANDEQIEKAICHIDAOLIANGHOUBOBUJUN,YINGXIANGLEJIAGONGZHILIANGHEJIAGONGJINGDU。

ZHENDUICIZHONGZHUANGKUANG,DUIJINGDUYAOQIUBIJIAOGAODEMOBAN,YIBANXUANYONG4CIQIEKAIJIAGONG。DI1CIQIEKAIJIANGYIQIEXINGKONGDEFEILIAOQIEDIAO,QUCHUFEILIAOHOU,ZAIYOUJICHUANGDEZHUDONGYIWEI、ZHUDONGCHUANSIGONGYONG,WANJIEDI2CI、DI3CI、DI4CIQIEKAI。aQIEKAIDI1CI,QUFEILIAO→bQIEKAIDI1CI,QUFEILIAO→cQIEKAIDI1CI,QUFEILIAO→……→nQIEKAIDI1CI,QUFEILIAO→aQIEKAIDI2CI→bQIEKAIDI2CI→……→nQIEKAIDI2CI→aQIEKAIDI3CI→……→nQIEKAIDI3CI→aQIEKAIDI4CI→……→nQIEKAIDI4CI,JIAGONGJIESHU。

ZHEIZHONGQIEKAIFANGSHINENGSHIMEIGEXINGKONGJIAGONGHOUYOUMANZUDESHIKEKAISHINEIYINGLI,NENGJIANGGEGEXINGKONGYINJIAGONGCIXUBUTONGERFASHENGDEXIANGHUYINGXIANG、WEILIANGBIANXINGXIAJIANGDAOZUIXIAOCHENGDU,JIAOHAODIQUEBAOMOBANDEJIAGONGCHIDUJINGDU。DANSHIZHEIYANGJIAGONGSHIKETAIZHANG,JICHUANGYISUNJIANXIAOHAOLIANGDA,ZENGJIALEMOBANDEZHIZUOBENQIAN。LINGWAIJICHUANGBENSHENSUIJIAGONGSHIKEDEYANZHANGJIWENDUDEDONGYAOYEHUIFASHENGRUBIAN。YINER,GENJUSHIJIANCELIANGHEBIJIAO,MOBANZAIJIAGONGJINGDUYUNXUDEZHUANGKUANGXIA,KEXUANYONGDI1CIGONGTONGJIAGONGQUFEILIAOBUBIAN,ERJIANGHOUBIANDE2、3、4CIHEZAIYIQIJINXINGQIEKAI(JIaQIEKAIDI2CIHOU,BUYIWEI、BUJIANSIJIN

JIEZHEGEDI3、4CI→b→c……→n),HUOSHENGQUDI4CIQIEKAIERZUO3CIQIEKAI。ZHEIYANGQIEKAIWANHOUJINGCELIANG,XINGWEICHIDUGENBENFUHEYAOQIU。4CIJI3CIQIEKAIZHONGGECIDEJIAGONGYULIANG、JIAGONGJINGDU、WAIBIAOCUCAODUDECANKAOZHIJIANBIAO1JIBIAO2。CHUBUYUSUANYIXIA,XINGKONGZHIJIANDEYIWEI、CHUANSI、JIANSI、SHANGSHUI、XIASHUIDENGJUNAN1minJISUAN。XUANYONGZHEIZHONGQIEKAIBANFA,JIAGONG1KUAIYOU100GEXINGKONGDEMOBAN,MEICIJIANGHUIJIEYUEDAYUE9hDEJIAGONGSHIKE,QIEKAI4CIGONGJIEYUEDAYUE30h,ZHEIYANGDUIYUNYONGFEIYONGGUIZHONGDEMANZOUSIXIANQIEKAIJICHUANGLAISHUO,JIJINBULESHENGCHANGONGLV,YOUXIAJIANGFEIYONGXIAOHAO,YINERYEXIAJIANGLEMOBANDEZHIZUOBENQIAN。

4 AOMOBANXINGKONGXIAOJIAOLUODEJIAGONGGONGYI

YINWEIXUANYONGDEQIEKAISIZHIJINGYUEDA,QIEKAICHUDEXINGKONGJIAOLUOBANJINGYEYUEDA。DANGMOBANXINGKONGDEJIAOLUOBANJINGYAOQIUHENXIAOSHI(RUR0.07—R0.10mm),ZEBIXUHUANYONGXISI(RUΦ0.10mm)。DANSHIXIANGDUICUSIERYAN,XISIJIAGONGSUDUJIAOMAN,QIEFEIYONGGUIZHONG(DADUOXUJINKOUSI)。JIARUJIANGZHENGGEXINGKONGDOUYONGXISIJIAGONG,JIUHUIYANZHANGJIAGONGSHIKE,ZAOCHENGZAOTA。JINGGUOXIXINBIJIAOHEPOUXI,CAINAXIANJIANGJIAOLUOBANJINGQIADANGZENGDA,YONGCUSIQIEKAIYIQIEXINGKONGDAODACHIDUYAOQIU,ZAITIHUANXISIGONGTONGXIUGEYIQIEXINGKONGDEJIAOLUODAODAGUIZECHIDU。

XIAMIANSHIJUCHIXINGAOMOBAN(NEIJIAOLUOBANJINGWEIR0.07mm)DEXIANQIEKAIJIAGONGGONGYI。

(1)先用Φ0.20mm切开丝加工模板型孔至要求尺度,内角落部分加工至R0.15mm。
(2)退磁,关机。
(3)替换Φ0.10mm细丝。将切开丝输送带移至未运用过的方位。假如输送带3个方位均已运用且咬送细丝的作用欠安,则替换新的输送带。
(4)从头找正中心。带有2个金刚石锥体的切开丝导向插件(本导向插件为AGIE公司慢走丝线切开机床专用)点式支撑可使切开丝的下偏点被准确的定位,使切开丝准确地进行导向。当切开丝直径为Φ0.20mm时,找正中心在b点,当切开丝直径为Φ0.10mm时,找正中心在a点,|ab|=|bo|-|ao|=0.1〖KF(〗2〖KF)〗-0.05〖KF(〗2〖KF)〗=0.0707mm。因而替换Φ0.10mm的细丝从头找正中心的坐标值应与原中心坐标值相差大约0.0707mm。
(5)修改图形圆角半径,从头编程,避开其它型孔概括线,将型孔的角落半径修整为R0.07mm。

5 DUOXINGKONGAOMO、GUDINGBAN、XIELIAOBANDEJIAGONGCIXU

DUOXINGKONGAOMO、GUDINGBAN、XIELIAOBANKAOLVDAOGEGEXINGKONGZAIJIAGONGJINCHENGZHONGSHOUCANLIUYINGLIJIJIAGONGRELIYINGXIANGERFASHENGDEWEILIANGBIANXING,YINERZAISHIJIANSHENGCHANZHONGXUANYONGXINGKONGJIAGONGCIXUGONGTONGDEBANFAQUEBAOQIXINGKONGFANGWEIBIANXINGDEGONGTONGXING,RANHOUQUEBAOLEAOMO、GUDINGBAN、XIELIAOBANXINGKONGDETONGZHOUDU。

6 JIESHUYU

MANZOUSIXIANQIEKAIJICHUANGJIAGONGJINGDUGAO、GONGYONGQIANG,DANJIAGONGBENQIANGAO,RUOYAOCHONGPEIFAHUIJICHUANGDEZUOYONG,CHUANGZAOHAODEJINGJIXIAOYI,BIXUDUIGONGJIANJINXINGHELIDEJIAGONGGONGYIPOUXIHEJISHUGONGNENGPOUXI,CHONGPEILEJIEJICHUANGDEJIEGOUGONGNENGYIJISHULIANZHANGWOJICHUANGDECAOZUOJINENG,HELIXUANYONGSHUICANSHUHEDIANCANSHU,XUEJIANJIAGONGJINCHENGZHONGDEDUANSIZHUANGKUANG,ZAISHIJIANZHONGBUDUANZONGJIEJINGYANJIAOXUN,ZHEIYANGCAIGANZUIDAXIANDUDIFAHUIJICHUANGDEQIANLI,JINBUSHENGCHANGONGLV。



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