一、直線導軌是什么
直(zhi)線導軌又稱(cheng)線軌、滑(hua)軌、線性(xing)導軌、線性(xing)滑(hua)軌,用于高精(jing)或高速(su)直(zhi)線往復運(yun)動場(chang)合,且(qie)可以承擔一定的(de)(de)扭矩,可在高負載的(de)(de)情況下實現高精(jing)度的(de)(de)直(zhi)線運(yun)動。在大陸稱(cheng)直(zhi)線導軌,臺灣一般稱(cheng)線性(xing)導軌,線性(xing)滑(hua)軌。
二、直線導軌的作用
直(zhi)(zhi)線(xian)導(dao)(dao)軌(gui)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)的(de)(de)作(zuo)用(yong)(yong)(yong)(yong)是用(yong)(yong)(yong)(yong)來支(zhi)撐(cheng)和引導(dao)(dao)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)部(bu)件,按給(gei)定(ding)的(de)(de)方向(xiang)做往(wang)復直(zhi)(zhi)線(xian)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)。直(zhi)(zhi)線(xian)軸(zhou)承(cheng)主(zhu)要用(yong)(yong)(yong)(yong)在自動(dong)(dong)(dong)化機械(xie)上比較多,像(xiang)德國進口的(de)(de)機床(chuang),折彎機,激光焊(han)接機等(deng)等(deng)。當然直(zhi)(zhi)線(xian)軸(zhou)承(cheng)和直(zhi)(zhi)線(xian)軸(zhou)是配(pei)套用(yong)(yong)(yong)(yong)的(de)(de)。像(xiang)直(zhi)(zhi)線(xian)導(dao)(dao)軌(gui)主(zhu)要是用(yong)(yong)(yong)(yong)在精度(du)要求比較高(gao)的(de)(de)機械(xie)結構上,直(zhi)(zhi)線(xian)導(dao)(dao)軌(gui)的(de)(de)移(yi)動(dong)(dong)(dong)元件和固定(ding)元件之(zhi)間(jian)不用(yong)(yong)(yong)(yong)中間(jian)介質,而用(yong)(yong)(yong)(yong)滾動(dong)(dong)(dong)鋼(gang)球(qiu)。因為滾動(dong)(dong)(dong)鋼(gang)球(qiu)適應于(yu)高(gao)速運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)、摩擦系數小、靈敏度(du)高(gao),滿足運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)部(bu)件的(de)(de)工作(zuo)要求,如(ru)機床(chuang)的(de)(de)刀架(jia),拖板等(deng)。如(ru)果(guo)作(zuo)用(yong)(yong)(yong)(yong)在鋼(gang)球(qiu)上的(de)(de)作(zuo)用(yong)(yong)(yong)(yong)力太(tai)大,鋼(gang)球(qiu)經受預加(jia)負荷(he)時間(jian)過長(chang),導(dao)(dao)致支(zhi)架(jia)運(yun)(yun)(yun)(yun)動(dong)(dong)(dong)阻力增大。
三、直線導軌的工作原理
可以理(li)解為(wei)是(shi)一種滾(gun)動(dong)(dong)導引,是(shi)由鋼珠在滑塊(kuai)跟導軌(gui)之間無限滾(gun)動(dong)(dong)循環,從而使負載平(ping)臺沿(yan)著(zhu)導軌(gui)輕(qing)易的高精度線性運(yun)動(dong)(dong),并將摩擦系(xi)數降至平(ping)常(chang)傳(chuan)統滑動(dong)(dong)導引的五十分之一,能輕(qing)易地達到(dao)很(hen)高的定位精度。滑塊(kuai)跟導軌(gui)間末(mo)制單元設計(ji),使線形導軌(gui)同時(shi)承受上(shang)下左右等各方向(xiang)的負荷(he),專利的回流系(xi)統及(ji)精簡化的結構設計(ji)讓線性導軌(gui)有(you)更平(ping)順且(qie)低噪音(yin)的運(yun)動(dong)(dong)。
四、直線導軌有幾種類型
1、按結構來分
直(zhi)線(xian)導(dao)軌(gui)可分為三類:滾(gun)輪直(zhi)線(xian)導(dao)軌(gui)、滾(gun)珠直(zhi)線(xian)導(dao)軌(gui)、圓柱(zhu)直(zhi)線(xian)導(dao)軌(gui),是用來做引(yin)導(dao)和支撐(cheng)效果的,按指定的方(fang)向做直(zhi)線(xian)反復運動。
2、按摩擦性質來分
直線(xian)運動導(dao)(dao)(dao)軌又分為翻滾摩擦(ca)(ca)導(dao)(dao)(dao)軌、滑動摩擦(ca)(ca)導(dao)(dao)(dao)軌、流(liu)體摩擦(ca)(ca)導(dao)(dao)(dao)軌、彈(dan)性(xing)摩擦(ca)(ca)導(dao)(dao)(dao)軌等(deng)等(deng)品(pin)種,較為繁復。
3、按效果來分
直線導軌可分(fen)為單軸(zhou)芯(xin)(xin)直線導軌、雙(shuang)軸(zhou)芯(xin)(xin)滾輪直線導軌、方形滾珠(zhu)直線導軌。
五、直線導軌型號尺寸是多少
品牌直線導軌型號為15,20,25,30,35,45,55,65,尺寸是15到(dao)(dao)15,20到(dao)(dao)20,25到(dao)(dao)23,30到(dao)(dao)28,35到(dao)(dao)34,45到(dao)(dao)45,55到(dao)(dao)53,65到(dao)(dao)63。