1. positioning accuracy; In terms of accuracy, the identification of linear guide rail transmission mechanism reduces the problem of interpolation lag. The positioning accuracy, reproduction accuracy and position detection feedback control are easier to achieve than rotating motor + ball screw

2.重復(fù)精度對(duì)比;傳動(dòng)機(jī)構(gòu)簡(jiǎn)單，減少插補(bǔ)滯后的問題，相反絲桿的間隙容易產(chǎn)生影響，所以直線導(dǎo)軌更容易實(shí)現(xiàn)。

2. comparison of repetition accuracy; The transmission mechanism is simple, which reduces the problem of interpolation lag. On the contrary, the clearance of the screw rod is easy to be affected, so the linear guide rail is easier to realize.

3.速度比較;一般伺服電機(jī)由于離心力的作用，高速運(yùn)作時(shí)，將受到較大應(yīng)力，因此轉(zhuǎn)速和輸出功率受到限制。相對(duì)而言，直線導(dǎo)軌不收限制外，也沒有機(jī)械損耗，從而提高傳動(dòng)速度。

3. speed comparison; Due to the centrifugal force, the general servo motor will be subject to large stress when it operates at high speed, so the speed and output power are limited. Relatively speaking, the linear guide rail has no restrictions and no mechanical losses, so as to improve the transmission speed.

4.行程對(duì)比;從行程來(lái)看，直線導(dǎo)軌的行程取決于定子和動(dòng)子，理論來(lái)說(shuō)直線導(dǎo)軌可以無(wú)限延長(zhǎng)；而伺服導(dǎo)軌+絲桿由于承受負(fù)載、絲桿外徑、精度等級(jí)等因素的影響，通常只能達(dá)到4M的長(zhǎng)度。

4. stroke comparison; In terms of travel, the travel of the linear guide rail depends on the stator and mover. Theoretically, the linear guide rail can be extended indefinitely; However, the length of servo guide rail + screw rod can only reach 4m due to the influence of load, screw rod outer diameter, accuracy grade and other factors.

5.維護(hù)簡(jiǎn)單;直線導(dǎo)軌部件少，運(yùn)動(dòng)機(jī)械無(wú)接觸，很少甚無(wú)需維護(hù)。伺服電機(jī)絲桿結(jié)構(gòu)多，部件多，需經(jīng)常維護(hù)或更換配件。

5. simple maintenance; The linear guide rail has few components, and the moving machinery has no contact, so it requires little or no maintenance. The servo motor has many screw structures and components, which need frequent maintenance or replacement of accessories.

6.壽命對(duì)比;直線導(dǎo)軌：直線導(dǎo)軌因運(yùn)動(dòng)部件和固定部件間無(wú)直接接觸，不會(huì)因動(dòng)子的高速運(yùn)動(dòng)而磨損即使長(zhǎng)時(shí)間運(yùn)用對(duì)運(yùn)動(dòng)精度無(wú)變化，故壽命更長(zhǎng)。

6. life comparison; Linear guide rail: because there is no direct contact between moving parts and fixed parts, the linear guide rail will not be worn due to the high-speed movement of the mover. Even if it is used for a long time, it will not change the motion accuracy, so its service life is longer.

伺服電機(jī)+絲桿：滾珠絲桿因高速運(yùn)動(dòng)造成傳動(dòng)部件的磨損，同時(shí)無(wú)法再高速往復(fù)運(yùn)動(dòng)中確保精度，從而影響精度。

Servo motor + screw: the high-speed motion of the ball screw causes the wear of the transmission parts, and the accuracy can not be ensured in the high-speed reciprocating motion, thus affecting the accuracy.

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