一、直線導軌是什么
直(zhi)(zhi)線(xian)(xian)導軌(gui)(gui)又稱線(xian)(xian)軌(gui)(gui)、滑軌(gui)(gui)、線(xian)(xian)性導軌(gui)(gui)、線(xian)(xian)性滑軌(gui)(gui),用于高精或(huo)高速直(zhi)(zhi)線(xian)(xian)往復運動場合,且可(ke)以承擔(dan)一定的扭(niu)矩,可(ke)在(zai)(zai)高負載的情況下(xia)實現高精度的直(zhi)(zhi)線(xian)(xian)運動。在(zai)(zai)大陸稱直(zhi)(zhi)線(xian)(xian)導軌(gui)(gui),臺灣一般(ban)稱線(xian)(xian)性導軌(gui)(gui),線(xian)(xian)性滑軌(gui)(gui)。
二、直線導軌的作用
直(zhi)線(xian)導軌(gui)運(yun)動(dong)(dong)(dong)的作(zuo)用(yong)(yong)(yong)是(shi)(shi)用(yong)(yong)(yong)來支撐(cheng)和(he)引(yin)導運(yun)動(dong)(dong)(dong)部件,按給定(ding)的方向(xiang)做(zuo)往復直(zhi)線(xian)運(yun)動(dong)(dong)(dong)。直(zhi)線(xian)軸承(cheng)主要(yao)用(yong)(yong)(yong)在(zai)自動(dong)(dong)(dong)化機(ji)(ji)(ji)械(xie)上(shang)比(bi)較(jiao)多(duo),像德國進口的機(ji)(ji)(ji)床,折彎機(ji)(ji)(ji),激光焊接機(ji)(ji)(ji)等(deng)等(deng)。當然直(zhi)線(xian)軸承(cheng)和(he)直(zhi)線(xian)軸是(shi)(shi)配套用(yong)(yong)(yong)的。像直(zhi)線(xian)導軌(gui)主要(yao)是(shi)(shi)用(yong)(yong)(yong)在(zai)精度要(yao)求比(bi)較(jiao)高(gao)的機(ji)(ji)(ji)械(xie)結(jie)構上(shang),直(zhi)線(xian)導軌(gui)的移(yi)動(dong)(dong)(dong)元件和(he)固(gu)定(ding)元件之(zhi)間不用(yong)(yong)(yong)中間介質,而(er)用(yong)(yong)(yong)滾動(dong)(dong)(dong)鋼(gang)(gang)球(qiu)(qiu)(qiu)。因為滾動(dong)(dong)(dong)鋼(gang)(gang)球(qiu)(qiu)(qiu)適應于(yu)高(gao)速(su)運(yun)動(dong)(dong)(dong)、摩擦系數(shu)小、靈敏度高(gao),滿足(zu)運(yun)動(dong)(dong)(dong)部件的工作(zuo)要(yao)求,如(ru)機(ji)(ji)(ji)床的刀架,拖板等(deng)。如(ru)果作(zuo)用(yong)(yong)(yong)在(zai)鋼(gang)(gang)球(qiu)(qiu)(qiu)上(shang)的作(zuo)用(yong)(yong)(yong)力(li)太大,鋼(gang)(gang)球(qiu)(qiu)(qiu)經受預加負荷時間過(guo)長,導致支架運(yun)動(dong)(dong)(dong)阻力(li)增(zeng)大。
三、直線導軌的工作原理
可(ke)以理解為是一種滾動導(dao)引,是由鋼珠在滑塊(kuai)跟導(dao)軌之(zhi)間無限(xian)滾動循環,從(cong)而使負載平(ping)臺沿著導(dao)軌輕易的(de)高精度線性(xing)運(yun)動,并將摩擦系數降至平(ping)常傳統滑動導(dao)引的(de)五十分之(zhi)一,能輕易地達到很高的(de)定位精度。滑塊(kuai)跟導(dao)軌間末制(zhi)單元(yuan)設計,使線形導(dao)軌同時承受上(shang)下左右等各方向的(de)負荷(he),專利的(de)回流系統及(ji)精簡(jian)化的(de)結構設計讓線性(xing)導(dao)軌有更平(ping)順且低(di)噪音的(de)運(yun)動。
四、直線導軌有幾種類型
1、按結構來分
直(zhi)線(xian)(xian)導(dao)(dao)軌可(ke)分為(wei)三類(lei):滾(gun)輪(lun)直(zhi)線(xian)(xian)導(dao)(dao)軌、滾(gun)珠直(zhi)線(xian)(xian)導(dao)(dao)軌、圓柱直(zhi)線(xian)(xian)導(dao)(dao)軌,是用來做引導(dao)(dao)和(he)支(zhi)撐效果的,按指定的方(fang)向做直(zhi)線(xian)(xian)反復運動。
2、按摩擦性質來分
直線運(yun)動導軌(gui)又分(fen)為翻滾摩(mo)擦(ca)導軌(gui)、滑動摩(mo)擦(ca)導軌(gui)、流(liu)體摩(mo)擦(ca)導軌(gui)、彈性摩(mo)擦(ca)導軌(gui)等等品種,較為繁復。
3、按效果來分
直線(xian)(xian)導(dao)(dao)軌(gui)可分為單軸(zhou)芯(xin)直線(xian)(xian)導(dao)(dao)軌(gui)、雙軸(zhou)芯(xin)滾(gun)輪直線(xian)(xian)導(dao)(dao)軌(gui)、方形(xing)滾(gun)珠直線(xian)(xian)導(dao)(dao)軌(gui)。
五、直線導軌型號尺寸是多少
品牌直線導軌型號為(wei)15,20,25,30,35,45,55,65,尺寸是15到(dao)15,20到(dao)20,25到(dao)23,30到(dao)28,35到(dao)34,45到(dao)45,55到(dao)53,65到(dao)63。