It is believed that many users will inevitably encounter some fault problems when using ball screws. As a precision component, once a fault occurs, it may lead to a series of corresponding problems. Let's talk about the performance of insufficient stability of the ball screw from the guide rail lead screw manufacturer.

反向間隙大，定位精度差，加工零件尺寸穩(wěn)定性不夠：

Large reverse clearance, poor positioning accuracy, and insufficient dimensional stability of machined parts:

由于滾珠絲杠副及其支撐系統(tǒng)在長(zhǎng)期的使用中難免會(huì)產(chǎn)生磨損間隙，這會(huì)直接影響數(shù)控機(jī)床的傳動(dòng)精度及剛性，一般故障的現(xiàn)象是反向間隙大、定位精度不穩(wěn)定等問(wèn)題。故障的原因可能是滾珠絲杠支撐軸承磨損或軸承預(yù)加負(fù)荷墊圈配的不合適、滾珠絲杠雙螺母副產(chǎn)生間隙、滾珠磨損這三種。

Due to the inevitable wear clearance of the ball screw pair and its support system during long-term use, this will directly affect the transmission accuracy and rigidity of CNC machine tools. Common failures include large reverse clearance, unstable positioning accuracy, and other issues. The cause of the failure may be wear of the ball screw support bearing or improper fitting of the bearing preload washer, clearance of the ball screw double nut pair, and ball wear.

滾珠絲杠副運(yùn)動(dòng)平穩(wěn)性差或噪音過(guò)大。導(dǎo)致這種現(xiàn)象的原因可能是未調(diào)整好伺服電機(jī)驅(qū)動(dòng)參數(shù)、絲桿絲母的潤(rùn)滑不足或者滾珠絲杠彎曲變形。

The ball screw pair has poor movement stability or excessive noise. The reasons for this phenomenon may be that the servo motor driving parameters have not been adjusted properly, the lubrication of the lead screw nut is insufficient, or the ball screw is bent or deformed.
導(dǎo)軌絲杠

出現(xiàn)竄動(dòng)問(wèn)題一般是由于滾珠絲杠副進(jìn)給傳動(dòng)的潤(rùn)滑狀態(tài)欠佳、絲杠支承軸承的壓蓋壓合情況不好、滾珠絲杠副滾珠有破損、絲杠支承軸承可能破裂、軸向預(yù)加載荷過(guò)小，使進(jìn)給傳動(dòng)鏈的傳動(dòng)間隙過(guò)大引起絲杠傳動(dòng)時(shí)候的軸向竄動(dòng)。

The occurrence of play problems is generally due to poor lubrication of the feed transmission of the ball screw pair, poor press fit of the gland of the lead screw support bearing, damage to the ball of the ball screw pair, possible fracture of the lead screw support bearing, and too small axial preload, resulting in excessive transmission clearance of the feed transmission chain, causing axial play during the lead screw transmission.

滾珠絲杠副進(jìn)給傳動(dòng)的潤(rùn)滑狀態(tài)不良、軸向預(yù)加載負(fù)荷過(guò)大、絲杠與導(dǎo)軌不平行、螺母軸線與導(dǎo)軌不平行或絲杠彎曲變形時(shí)都會(huì)引起過(guò)載報(bào)警。一般會(huì)在CRT上顯示伺服電動(dòng)機(jī)過(guò)載、過(guò)熱或過(guò)流的報(bào)警，或在電柜的進(jìn)給驅(qū)動(dòng)單元上，用指示燈或數(shù)碼管提示驅(qū)動(dòng)單元過(guò)載、過(guò)流信息。

Poor lubrication of the ball screw feed transmission, excessive axial preload, non parallelism between the screw and the guide rail, non parallelism between the nut axis and the guide rail, or bending and deformation of the screw can cause an overload alarm. Generally, an alarm for servo motor overload, overheating, or overcurrent is displayed on the CRT, or an indicator light or digital tube is used on the feed drive unit of the electric cabinet to prompt the drive unit for overload, overcurrent information.

爬行問(wèn)題通常是發(fā)生在啟動(dòng)加速段或低速進(jìn)給的時(shí)候，多因進(jìn)給傳動(dòng)鏈的潤(rùn)滑狀況不佳、外加負(fù)載過(guò)大等因素引起。

Creepage problems usually occur during startup acceleration or low speed feed, and are often caused by factors such as poor lubrication of the feed transmission chain, excessive applied load, and so on.

需要非常注意的是，連接伺服電機(jī)和滾珠絲杠的聯(lián)軸器，若連接松動(dòng)或聯(lián)軸器本身缺陷，如裂紋等，會(huì)導(dǎo)致滾珠絲杠轉(zhuǎn)動(dòng)和伺服電機(jī)的轉(zhuǎn)動(dòng)不同步，從而導(dǎo)致進(jìn)給運(yùn)動(dòng)時(shí)快時(shí)慢，導(dǎo)致爬行的問(wèn)題。更多相關(guān)事項(xiàng)就來(lái)我們網(wǎng)站http://www.2b4g.com咨詢！

Special attention should be paid to the fact that if the coupling connecting the servo motor and the ball screw is loose or the coupling itself has defects, such as cracks, it can cause the ball screw rotation and the servo motor rotation to be out of sync, resulting in fast and slow feed motion, leading to a creeping problem. For more related matters, please visit our website http://www.2b4g.com consulting service