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主页 > 科信资讯 > 行业动态 > 线切割中采用光栅尺闭环设计分析

线切割中采用光栅尺闭环设计分析

  • 发布日期:17-08-17 15:25
  • 点击数:137

FENXIANGDAO:

  MUQIANZAIXIANQIEGEJIZHONGDANGXITONGFACHUYIGEJINJIZHILING,JINGQUDONGDIANLUGONGLVFANGDA,QUDONGDIANJIXUANZHUANYIGEJIAODU,ZAIJINGCHILUNJIANSUZHUANGZHIDAIDONGSIGANGXUANZHUAN,TONGGUOSIGANGLUOMUJIGOUZHUANHUANWEIJICHUANGDEZHIXIANWEIYI。JICHUANGGEGEZHOUDEYIDONGSUDUYUWEIYILIANGYOUSHURUMAICHONGDEPINLVYUMAICHONGSHUSUOJUEDING。CISHIJICHUANGDEXINXILIUSHIDANXIANGDE,JIJINJIMAICHONGFACHUHOU,SHIJIYIDONGZHIBUZAIFANKUIHUILAI。XITONGDUIJICHUANGDESHIJIWEIYILIANGBUJINXINGJIANCE,YEBUNENGJINXINGWUCHAXIAOZHENG。YINCIBUJINDIANDONGJIDESHIBU、BUJUJIAOWUCHA、CHILUNYUSIGANGDENGCHUANDONGWUCHADOUJIANGYINGXIANGBEIJIAGONGLINGJIANDEJINGDU。WEILETIGAOJICHUANGDEJINGDU,CAIYONGZHIXIANDIANJIHEWEIZHIJIANCEYUANJIANZUCHENGBIHUANXITONG。TAXIAOCHULEXUANZHUANDIANJICHILUNJIANXIDAILAIDEWUCHA,JIANXIAOLEXITONGDEGUANXING,GAISHANLEXITONGDEDONGTAIXINGNENG。DIANJINENGFOUJINGQUEDINGWEI,QUJUEYUWEIZHIFANKUISHIFOUJINGQUE,GUANGZHACHIJINGDUGAO、JIAWEIDI、XINGNENGYOULIANG、GUQICHENGWEISHOUXUANCHUANGANQI,YISHIXIANWEIZHIXINHAODEFANKUI。

  GUANGZHACHIXINHAOSHUCHUPINLVHENGAO,RUZHIJIEJIGONGKONGJIDUQU,SHISHIXINGNANYIBAOZHENG,CAIYONGGAOXINGNENGGONGKONGJISUINENGSHIXIAN,DANXUBIANZHIDALIANGCHENGXU。SHEJIGUANGZHACHIJIEKOUMOKUAI,NENGSHIXIANXINHAODEXIFEN、BIANXIANG、WEIZHIDEJISUANYUXIANSHI。MOKUAISHIDULIGONGZUODE,SHANGWEIJIHESHIXUYAOSHUJU,TONGGUOSHUJUZONGXIANZHIJIEDUQUJIKE。JIBAOZHENGKONGZHIXITONGDESHISHIXING,TIGAOLEXITONGDEFANYINGSUDU。CAIYONGDEGUANGZHACHIFENBIANLVWEI1µm。

  1.光栅尺信号

  GUANGZHACHISHUCHUXINHAOSHIDIANXINHAO,DONGCHIYIDONGYIGEZHAJU,SHUCHUDIANXINHAOBIANBIANHUAYIGEZHOUQI,TASHITONGGUODUIXINHAOBIANHUAZHOUQIDECELIANGLAICECHUYIDONGDEXIANGDUIWEIYI。JISHUQISUOJISHUCHENGYIGUANGZHAJUJIWEIZHIXIANDIANJISUOZOUDEWEIYI。

  SHUCHUXINHAOSHIXIANGWEIJIAOXIANGCHA90ºSHI,FANGXIANGWEIZHENG,FANZHIWEIFU。ZXINHAOZUOWEIXIAOZHUNXINHAOYIXIAOCHULEIJIWUCHA。

  ZAIAXINHAOPAXIAJIANGYANCAIJIBXINHAO,JIUKEPANDUANCHUYUNDONGFANGXIANG。DANGAXINHAODESHANGSHENGYANJIXIAJIANGYANJUNBIBXINHAOCHAOQIAN1/4W,ZAIAXINHAOXIAJIANGYANCAIJIDEBXINHAOWEI“1”,CISHIWEIZHENGXIANGYUNDONG;AXINHAODESHANGSHENGYANJIXIAJIANGYANJUNBIBXINHAOZHIHOU1/4W,ZAIAXINHAOXIAJIANGYANCAIJIDAODEBXINHAOWEI“0”,CISHIWEIFANXIANGYUNDONG。GENJUCAIJIDAODEYUNDONGXINHAOFANGXIANGHEAXINHAOBIANHUADEZHOUQISHUYONGJISHUQIJINXINGJISHU(ZHENGXIANGJISHUHUONIXIANGJISHU),JIUKECESUANCHUZONGWEIYI。

  2 接口模块整体结构

  GUANGZHACHISHUCHUXINHAODECELIANGHECHULIXUJINGGUO:LVBO、ZHENGLIU,XIFENBIANXIANGDIANLU,JISHUDIANLU,JIEKOUDIANLU,SHIXIANYUXITONGZONGXIANDEJIAOHUAN。JIEKOUMOKUAIYUANLITUJIANTU1。

  2.1 细分辨向电路

  GUANGZHACHIXINHAODEXIFENYUBIANXIANGSHITIGAOGUANGZHACHICELIANGJINGDUDEGUANJIANXINGYIBU。GUANGZHABIANXIANGHEXIFENDIANLUDESHEJIZHONG,YOUDESHEJIBABIANXIANGHEXIFENDIANLUFENKAI,BIANXIANGDIANLUZHIDUIGUANGZHACHIDESHUCHUXINHAOJINXINGBIANXIANG,ERBUDUIXIFENHOUDEMAICHONGXINHAOJINXINGBIANXIANG,ZHEIYANGSHIXIANDECELIANGWUCHARENGSHIGUANGZHACHIDEZHAJU。ZAIKAOLVBIANXIANGGONGNENGSHI,YINGDUIXIFENHOUDEXINHAOJINXINGBIANXIANGSHEJI,FOUZEBUNENGTIGAOCELIANGJINGDU。CICHUWEIXIFENBIANXIANGDIANLUSHEJIDEZHONGDIAN。

  YIXZHOUSHUCHUXINHAOWEILI。GUANGZHACHISHUCHUDEXIANGCHAWEI90ºDEFANGBOXINHAOXAHEXB,JINGRCLVBOHE6N137KUAISUGUANGOU,XIAOCHUSHURUXINHAOZHONGJIANMAICHONGDAILAIDEYINGXIANG,TIGAOXITONGDEKANGGANRAOXINGNENG。TONGGUO4BEIPINDIANLUSHIXIANJINGDUDEDANGAO,YUANLAIGUANGZHACHIDEFENBIANLVWEI5µm,BEIPINHOUFENBIANLVBIANWEI1.25µm。YIMADIANLUWEI(GAL1.22V10TIGONGSHIZHONGCLK。DIANJIDEYUNDONGFANGXIANGYOUBIANXIANGDIANLULAISHIXIAN。DANGGUANGZHACHIZHENGXIANGYUNDONGSHI,CONGI/ODUANKOUSHUCHUMAICHONGXULIEPX;DANGGUANGZHACHIFANXIANGYUNDONGSHI,CONGI/ODUANKOUSHUCHUMAICHONGXULIENX。

  2.2 计数电路

  本系统中采用8254实现计数功能。正反向脉冲PX,NX分别作为计数器8254的时钟CLK,输出信号即为位移的脉冲数。地址线A0、A1与8254的片选取线一起确定8254的地址。
 

  2.3 接口电路

  SHEJIJIEKOUDIANLUSHI,ZHUYAOKAOLV3FANGMIANYINSU;

  (1)ZONGXIANFUZAI。DANGCPUDUCHAJIANBANSHANGDENEICUNHUOJIEKOUSHI,NEICUNXINPIANSHIJIEKOUXINPIANJIANGSHUJUCHUANSONGDAOXITONGZONGXIANDESHUJUZONGXIANSHANG,CISHISHUJUZONGXIANSHANGDESUOYOUFUZAIDOUJIANGCHENGWEINEICUNXINPIANSHIJIEKOUXINPIANDEFUZAI。WEILEBAOZHENGZONGXIANDEZHENGCHANGGONGZUO,ZAIJIEKOUDIANLUZHONGYAOZENGJIASHUANGXIANGSHUJUQUDONG。

  (2)ZONGXIANDEJINGZHENG。PCJISHUYUDULISHII/OJIEKOUXUNZHIFANGSHI,DUIYIGEDIZHI,JISUANJIKEYOUI/ODUXIE、DMADUXIEHECUNCHUQIDUXIE,TAMENDIZHIYIMAZHONGJIARUAENXINHAO,BIMIANDMACAOZUOBUHUIXUANTONGI/ODIZHI。CUNCHUQII/OJIEKOUDIZHIYICHANSHENGHUNXIAO,LIYONGYINGJIANDIANLUJINXINGCUNQU,BIMIANLEZONGXIANJINGZHENG。ZHIDANGCPUDUJIEKOUKASHI,CAIYUNXUTONGXIANGXITONGSHUJUXIANDESANTAIMENDAOTONG,QITARENHESHIKEZHEIXIESANTAIMENBIXUCHENGXIANGAOZUZHUANGTAI。

  (3)JIEKOUBAOHU。JIEKOUDIANLUHAIYINGKAOLVYOUYUJIEKOUDIANLUCHUXIANGUZHANGHUOGONGZUOSHIDEWUDONGZUODUIJISUANJIZAOCHENGDESUNHUAI。

  2.4 基于ISA总线的接口电路设计

  (1)HUANCHONGQIYOUBAOHUGONGNENGSHEJI

  YONGBATONGXIANGSHUANGXIANGSANZHIHUANCHONGQI/QUDONGQIXINPIANSN74HC245HUANCHONGISAZONGXIANKUOZHANCAOYUGEQIJIANJIANDE8WEISHUJUXINHAO。SN74HC245BUDANQIHUANCHONG、GELIZUOYONG,HAIYOUYIDINGDEBAOHUHEKONGZHIZUOYONG。GONGKONGJIDUKONGZHIXINHAO(DIDIANPINGYOUXIAO)BIANJIEDAOSN74HC245DEDIR(FANGXIANGKONGZHIDUAN),ERMENKONGXINHAOJIEXINHAOCS245。CS245WXINHAOSHII/ODUANKOUDUXIEXINHAOHEJIEKOUDIZHIYIMAXINHAOCHANSHENGDEXINHAO。DANGDUYOUXIAOWEIDIDIANPINGSHI,8254DESHUJUKETONGGUOSN74HC245SHURUDAOJISUANJI;DUYOUXIAOWEIGAODIANPINGSHI,JISUANJIDESHUJUSHUCHU。CS245SHIXIANZHIYOUJISUANJIYU8254JIAOHUANSHUJUSHI,XUANTONGSN74HC245DEMENKONGXINHAOG,SHIZHISANTAIMENDAKAI。

  (2)DUANKOUDIZHIYIMADIANLU

  CAIYONGGAL22V10XINPIANSHIXIANJIEKOUDIZHIYIMA,WEIXIFENBIANXIANGDIANLUTIGONGSHIZHONGCLKXINHAO;WEI8254DEPIANXUANXIANYIQIQUEDING8254DEDIZHI。JIEKOUDIANYUANLITUJIANTU2。

  GALQIJIANSHIYIZHONGGAOXINGNENGDELIXIANGPLDCHANPIN。GALQIJIANCAIYONGE2CMOSGONGYI,KEJINXINGFANFUDEBIANCHENGHECACHU,QIEJUYONGDIGONGHAO、GAOSUDETEDIAN。CHANGYONGGALQIJIANYOUGAL16V8、GAL20V8、GAL22V10DENG。

  GAL16V8、GAL20V8DESHIYONGFANGFAN。DANDUIYUMOUXIEYINGYONGCHANGHE,ZHEILIANGZHONGGALXINPIANWANGWANGBUNENGMANZUXUYAO,QIZHUYAOBUZUZHICHU:CHENGJIXIANGBUNENGCHAOGUO8GE; NENGPEIZHIDESHUCHUYINJIAOZUIDUOZHIYOU8GE;BUNENGDUIJICUNQIJINXINGFUWEIHUOZHIWEICAOZUO;DUIFANKUIJIEGOUDEXIANZHIJIAODUO,YOUXIEYINJIAOBUNENGFANKUIDENG。

  GAL22V10SHIYIZHONGTONGYONGXINGGALQIJIAN,TAKEYICONGMOUZHONGCHENGDUSHANGJIEJUEYISHANGTIDAODEGAL16V8HEGAL20V8BUZUZHICHU。GAL22V10NEIBUGONGYOU132GEYUMEN,QIESHUCHUGUANJIAOSHANGDEYUMENBUSHIPINGJUNFENPEI;LUOJISHEJIBIAODASHIZHONG“YU”XIANGZUIDUOWEI22GEBIANLIANGDELUOJICHENG;GAL22V10DESHUCHUHONGDANYUANJIAOJIANJIE、LINGHUO,RONGYISHIYONG,BUXIANGGAL20V8ZAIBUTONGSHUCHUMOSHIXIASHUCHUFANKUIDEZHONGZHONGXIANZHI。GAL22V10DESHUCHUCHONGDANYUAN(OLMC)MEIGESHUCHUCHONGDANYUANYOUGEZIDESOHESIKONGZHI,KEYOU4ZHONGBUTONGDESHUCHUGONGZUOMOSHI。KEBIANCHENGDEWEIZHIHEFUWEIKEYOUERGEYUMENJINXINGTONGYIDEZHIWEIKONGZHI。

  GAL22V10的逻辑设计软件可用ABEL(3。0版以上)或其他高级逻辑设计语言。如PROTEL公司的Protel 98/99都集成了一个CUPL逻辑设计语言。CUPL语言也是一种编译型硬件描述语言。VHDL支持所有的PLD器件。Protel 199的PLD设计工具支持实时检测,并给出错误提示。通过其中的PLD-CUPL Wizard可很快捷地建立基于原理图或文本方式的PLD设计文件,对这个文件进行编译,就可得到符合工业标准的JEDEC文件(*。JED)。
 

  ABELYUYANSHIMEIGUODATA I/OGONGSIDEYIZHONGGAOJIBIANYIXINGLUOJISHEJIYUYAN,TAYIQIFANGBIAN、LINGHUO、YIYUZHANGWODETEDIAN,SHENSHOUYINGJIANLUOJISHEJIZHEDEXIAI。LIYONGTAGAODUJIEGOUHUADEYUYAN、LINGHUODUOYANGDELUOJIMIAOSHUXINGSHIKEHENRONGYIDIBIANXIECHUAbelYUANWENJIAN,BIANYIGUOCHENGDUIYONGHUDELUOJISHEJIJINXINGYUFAJIANCHA、LUOJIHUAJIAN、ZIDONGCHENGFUHEJEDECBIAOZHUNDEJEDWENJIANZHONGDECUOWU,HUOFAXIANKENENGCHANSHENGBANGZHANGDEYINHUAN,YITIGAOSHEJIDEKEKAOXING。ABELRUANJIANSHITONGYONGDEPLDQIJIANSHEJIRUANJIAN,GAOBANBENDEABELJIHUKEZHICHIRENHEYIZHONGPLDQIJIAN。

  BULUNXUANYONGNEIYIZHONGSHEJIYUYAN,ZUIHOUDOUYAOSHENGCHENGJEDECGESHIWENJIAN,CAINENGNENGGUOBIANCHENGQISHAORUPLEQIJIAN。

  3 结束语

  ZHENDUIJINGMIDUSHUKONGJICHUANGSIFUXITONGDUIWEIZHIFANKUIYAOQIUJINGDUGAO、SHISHIXINGHAODETEDIAN,SHEJIZHINENGJIEKOUMOKUAILAICHULIGUANGZHACHIXINHAO,RANHOUJIANGQISHURUGONGKONGJI。ZAIJIEKOUDIANLUZHONGLIYONGGAL22V10XINPIAN,KESHIXIANI/ODUANKOUKONGZHIHEDIZHIYIMA。GALQIJIANDESHIYONG,SHIXIANLEYONGYIPIANXINPIANDAITIJIGEXINPIAN,BUJINJIANXIAOLEJIEKOUDIANLUDETIJI,JIANHUALEDIANLUDESHEJI,QIEJIANSHAOLEJIYANCHI,TIGAOLEXITONGCHULISUDU。

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