直線生組的(de)工作原(yuan)理分(fen)為兩(liang)部分(fen)：一是趁(chen)桿(gan)傳動，二是同(tong)步帶傳動．下面將(jiang)詳細解釋這(zhe)兩(liang)個傳輸模塊的(de)原(yuan)理直線模組絲(si)桿(gan)傳動

1.直線模組絲杠結構圖

絲桿驅動(dong)(dong)．伺服電機(ji)左右旋(xuan)轉．伺服電機(ji)與滾珠絲桿通(tong)過摘密(mi)(mi)聯軸韶(shao)連接在(zai)一(yi)起，使勝桿轉動(dong)(dong)，絲桿通(tong)過理母將(jiang)轉動(dong)(dong)運動(dong)(dong)變為直線運動(dong)(dong)．由于伺服電機(ji)與滾珠絲桿的(de)摘密(mi)(mi)配(pei)(pei)合，始終(zhong)帶(dai)動(dong)(dong)安裝(zhuang)在(zai)螺母上的(de)滑(hua)動(dong)(dong)座(zuo)在(zai)直線導軌上做(zuo)情(qing)(qing)密(mi)(mi)的(de)直線運動(dong)(dong)，多個情(qing)(qing)密(mi)(mi)部件(jian)配(pei)(pei)合在(zai)一(yi)起，實現情(qing)(qing)確定位。

（趁桿(gan)模塊(kuai)定位情度(du)高，可選擇不(bu)同(tong)(tong)精(jing)度(du)等(deng)級的絲桿(gan)，滿足不(bu)同(tong)(tong)場合的精(jing)度(du)要求．另外(wai)伺服電機(ji)通過滾珠紅杠(gang)轉換的推(tui)(tui)力吧咬大，可以滿足推(tui)(tui)力大的場臺很(hen)多，但(dan)是(shi)螺桿(gan)模塊(kuai)也(ye)有(you)一個(ge)問題，就是(shi)螺桿(gan)有(you)長度(du)限制，不(bu)能超過長細比范圍，所以行(xing)程不(bu)會太長）

 2.同步帶驅動直線模組

同(tong)(tong)(tong)步(bu)(bu)帶(dai)驅動(dong)(dong)。相(xiang)同(tong)(tong)(tong)的驅動(dong)(dong)方式是(shi)(shi)伺(si)服(fu)電(dian)(dian)機提供(gong)旋轉動(dong)(dong)力(li)。但是(shi)(shi)，與趁桿直線棋組(zu)不同(tong)(tong)(tong)的是(shi)(shi)，內部沒(mei)有盆桿和螺母。而是(shi)(shi)使用(yong)同(tong)(tong)(tong)步(bu)(bu)輪(lun)和同(tong)(tong)(tong)步(bu)(bu)帶(dai)。這個比較簡單(dan)。同(tong)(tong)(tong)步(bu)(bu)輪(lun)安(an)裝在伺(si)服(fu)電(dian)(dian)彩 U 均軸(zhou)端(duan)，伺(si)服(fu)電(dian)(dian)機轉動(dong)(dong)帶(dai)動(dong)(dong)同(tong)(tong)(tong)步(bu)(bu)輪(lun)轉動(dong)(dong)。同(tong)(tong)(tong)步(bu)(bu)帶(dai)與齒輪(lun)嚙合，同(tong)(tong)(tong)步(bu)(bu)帶(dai)固定在滑(hua)座上(shang)，滑(hua)座在直線導(dao)軌上(shang)作(zuo)相(xiang)應的直線運(yun)動(dong)(dong)。控制伺(si)服(fu)電(dian)(dian)衫拍(pai)勺(shao)正反轉及停止進(jin)行定位。

（同(tong)步帶直線(xian)模組的定位情度(du)(du)比(bi)絲桿式稍(shao)差，良好的精度(du)(du)一(yi)般可以(yi)控制在士 O 一(yi) 04 mm 以(yi)內(nei)。但是(shi)同(tong)步帶一(yi)個很重(zhong)要的優點是(shi)它具(ju)有(you)長(chang)細比(bi)沒有(you)限制，理論(lun)行(xing)程可以(yi)很長(chang)，非(fei)常適臺一(yi)些需要行(xing)程比(bi)較長(chang)的場臺使用）。