交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)的(di)單(shan)軸(zhou)應(ying)用(yong)已(yi)形(xing)成(cheng)成(cheng)熟(shu)體(ti)係(ji)。其(qi)核(he)心(xin)結(jie)構(gou)由(you)V型(xing)滾(gun)道(dao)導(dao)軌(gui)、滾(gun)子(zi)保(bao)持(chi)架(jia)及(ji)交(jiao)錯(cuo)排(pai)列(lie)的(di)圓(yuan)柱(zhu)滾(gun)子(zi)組(zu)成(cheng),通(tong)過(guo)滾(gun)子(zi)在(zai)90度(duo)V型(xing)槽(cao)內(nei)的(di)滾(gun)動(dong)實(shi)現(xian)直(zhi)線(xian)運(yun)動(dong)。這(zhe)種(zhong)設(she)計(ji)使(shi)導(dao)軌(gui)具(ju)備(bei)四(si)向(xiang)載(zai)荷(he)承(cheng)載(zai)能(neng)力(li),可(ke)同(tong)時(shi)承(cheng)受(shou)徑(jing)向(xiang)、反(fan)徑(jing)向(xiang)及(ji)側(zhai)向(xiang)力(li)矩(ju),且(qie)接(jie)觸(chu)麵(mian)積(ji)較(jiao)傳(zhuan)統(tong)滾(gun)珠(zhu)導(dao)軌(gui)擴(kuo)大(dai)3倍(bei)以(yi)上(shang),單(shan)位(wei)麵(mian)積(ji)壓(ya)強(jiang)降(xiang)低(di)60%,顯(xian)著(zhuo)提(ti)升(sheng)了(liao)抗(kang)變(bian)形(xing)能(neng)力(li)。例(li)如(ru),在(zai)數(shuo)控(kong)機(ji)床(chuang)的(di)X/Y/Z軸(zhou)運(yun)動(dong)係(ji)統(tong)中(zhong),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)通(tong)過(guo)精(jing)密(mi)磨(mo)削(xiao)與(yu)熱(re)處(chu)理(li)工(gong)藝(yi),將(qiang)直(zhi)線(xian)度(duo)誤(wu)差(chai)控(kong)製(zhi)在(zai)0.002mm/m以(yi)內(nei),支(zhi)撐(cheng)起(qi)刀(dao)具(ju)或(huo)工(gong)件(jian)的(di)高(gao)速(su)、高(gao)精(jing)度(duo)定(ding)位(wei)。
當(dang)運(yun)動(dong)需(xu)求(qiu)從(zong)單(shan)軸(zhou)擴(kuo)展(zhan)至(zhi)多(duo)軸(zhou)複(fu)合(ge)時(shi),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)的(di)模(mu)塊(kuai)化(hua)設(she)計(ji)優(you)勢(shi)凸(tu)顯(xian)。通(tong)過(guo)組(zu)合(ge)多(duo)組(zu)導(dao)軌(gui),可(ke)構(gou)建(jian)二(er)維(wei)平(ping)麵(mian)(XY軸(zhou))或(huo)三(san)維(wei)空(kong)間(jian)(XYZ軸(zhou))的(di)運(yun)動(dong)係(ji)統(tong),實(shi)現(xian)多(duo)自(zi)由(you)度(duo)協(xie)同(tong)控(kong)製(zhi)。例(li)如(ru),在(zai)半(ban)導(dao)體(ti)製(zhi)造(zao)的(di)晶(jing)圓(yuan)檢(jian)測(ce)設(she)備(bei)中(zhong),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)組(zu)成(cheng)的(di)XY軸(zhou)平(ping)台(tai)需(xu)同(tong)時(shi)滿(man)足(ju)0.1微(wei)米(mi)的(di)定(ding)位(wei)精(jing)度(duo)與(yu)每(mei)秒(miao)2米(mi)的(di)運(yun)動(dong)速(su)度(duo)。其(qi)交(jiao)叉(cha)滾(gun)子(zi)排(pai)列(lie)結(jie)構(gou)使(shi)導(dao)軌(gui)在(zai)承(cheng)受(shou)垂(chui)直(zhi)載(zai)荷(he)的(di)同(tong)時(shi),通(tong)過(guo)預(yu)緊(jin)力(li)調(diao)控(kong)係(ji)統(tong)自(zi)動(dong)補(bu)償(chang)安(an)裝(zhuang)麵(mian)誤(wu)差(chai),確(que)保(bao)多(duo)軸(zhou)運(yun)動(dong)的(di)同(tong)步(bu)性(xing),將(qiang)重(chong)複(fu)定(ding)位(wei)誤(wu)差(chai)控(kong)製(zhi)在(zai)±0.05微(wei)米(mi)以(yi)內(nei)。
在(zai)醫(yi)療(liao)CT機(ji)的(di)檢(jian)查(cha)床(chuang)運(yun)動(dong)係(ji)統(tong)中(zhong),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)的(di)三(san)維(wei)複(fu)合(ge)運(yun)動(dong)能(neng)力(li)更(geng)為(wei)關(guan)鍵(jian)。其(qi)Z軸(zhou)(升(sheng)降(xiang))與(yu)X軸(zhou)(水(shui)平(ping)移(yi)動(dong))導(dao)軌(gui)需(xu)協(xie)同(tong)工(gong)作(zuo),支(zhi)撐(cheng)床(chuang)體(ti)承(cheng)載(zai)500kg負(fu)載(zai)時(shi)實(shi)現(xian)0.01mm/m的(di)直(zhi)線(xian)度(duo)。通(tong)過(guo)優(you)化(hua)滾(gun)子(zi)節(jie)距(ju)與(yu)保(bao)持(chi)架(jia)結(jie)構(gou),導(dao)軌(gui)係(ji)統(tong)將(qiang)動(dong)態(tai)摩(mo)擦(ca)係(ji)數(shuo)降(xiang)低(di)至(zhi)0.003,使(shi)床(chuang)體(ti)在(zai)高(gao)速(su)啟(qi)停(ting)(加(jia)速(su)度(duo)達(da)3g)時(shi)仍(reng)保(bao)持(chi)平(ping)穩(wen),避(bi)免(wen)振(zhen)動(dong)幹(gan)擾(rao)影(ying)像(xiang)清(qing)晰(xi)度(duo)。
針(zhen)對(dui)航(hang)空(kong)航(hang)天(tian)、工(gong)業(ye)機(ji)器(qi)人(ren)等(deng)極(ji)端(duan)工(gong)況(kuang),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)通(tong)過(guo)結(jie)構(gou)創(chuang)新(xin)進(jin)一(yi)步(bu)拓(ta)展(zhan)多(duo)軸(zhou)應(ying)用(yong)邊(bian)界(jie)。例(li)如(ru),某(mou)型(xing)衛(wei)星(xing)姿(zi)態(tai)調(diao)整(zheng)機(ji)構(gou)采(cai)用(yong)交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)構(gou)建(jian)六(liu)自(zi)由(you)度(duo)運(yun)動(dong)平(ping)台(tai),其(qi)不(bu)鏽(xiu)鋼(gang)材(cai)質(zhi)與(yu)真(zhen)空(kong)兼(jian)容(rong)潤(run)滑(hua)技(ji)術(zhu),使(shi)導(dao)軌(gui)在(zai)-40℃至(zhi)120℃溫(wen)變(bian)及(ji)高(gao)真(zhen)空(kong)環(huan)境(jing)下(xia),仍(reng)能(neng)保(bao)持(chi)0.02mm的(di)定(ding)位(wei)精(jing)度(duo)。而(er)在(zai)工(gong)業(ye)機(ji)器(qi)人(ren)的(di)關(guan)節(jie)部(bu)位(wei),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)與(yu)諧(xie)波(bo)減(jian)速(su)器(qi)的(di)集(ji)成(cheng)設(she)計(ji),將(qiang)多(duo)軸(zhou)運(yun)動(dong)的(di)回(hui)轉(zhuan)精(jing)度(duo)提(ti)升(sheng)至(zhi)0.001度(duo),支(zhi)撐(cheng)起(qi)機(ji)械(xie)臂(bi)的(di)微(wei)米(mi)級(ji)操(cao)作(zuo)。
從(zong)單(shan)軸(zhou)線(xian)性(xing)運(yun)動(dong)到(dao)多(duo)軸(zhou)複(fu)合(ge)控(kong)製(zhi),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)正(zheng)以(yi)“四(si)向(xiang)承(cheng)載(zai)、零(ling)間(jian)隙(xi)運(yun)動(dong)、模(mu)塊(kuai)化(hua)組(zu)合(ge)”三(san)大(dai)特(te)性(xing),重(chong)塑(su)精(jing)密(mi)裝(zhuang)備(bei)的(di)運(yun)動(dong)控(kong)製(zhi)體(ti)係(ji)。隨(sui)著(zhuo)工(gong)業(ye)母(mu)機(ji)向(xiang)納(na)米(mi)級(ji)精(jing)度(duo)邁(mai)進(jin),以(yi)及(ji)航(hang)空(kong)航(hang)天(tian)、醫(yi)療(liao)設(she)備(bei)對(dui)多(duo)自(zi)由(you)度(duo)協(xie)同(tong)需(xu)求(qiu)的(di)增(zeng)長(zhang),交(jiao)叉(cha)滾(gun)子(zi)導(dao)軌(gui)的(di)多(duo)軸(zhou)應(ying)用(yong)技(ji)術(zhu)將(qiang)持(chi)續(xu)突(tu)破(po),成(cheng)為(wei)高(gao)端(duan)裝(zhuang)備(bei)製(zhi)造(zao)的(di)核(he)心(xin)支(zhi)撐(cheng)。