Large reverse error of TBI ball screw is a common fault problem, which seriously affects the work progress. It appears that every technician must master the common faults and solutions of ball screw.

一、TBI滚珠丝杆反向误差较大的原因是什么？

1、 What is the reason for the large reverse error of TBI ball screw?

①滚珠丝杆预紧力过紧或者过松

① The preload of ball screw is too tight or too loose

②滚珠丝杆制造误差大或者轴向窜动

② Large manufacturing error or axial movement of ball screw

③丝杆轴滑板配合压板过紧或者过松

③ Screw shaft slide plate is too tight or too loose

④其他机械的干扰

④ Interference from other machinery

⑤丝杆轴联轴器锥套松动

⑤ Loose taper sleeve of screw shaft coupling

⑥丝杆支座轴承预紧力过紧或者过松

⑥ The preload of screw support bearing is too tight or too loose

⑦丝杆轴滑板配合楔铁过紧或者过松

⑦ Screw shaft slide plate is too tight or loose with wedge iron

二．怎样排除TBI滚珠丝杆的方向误差：

2、 How to eliminate the direction error of TBI ball screw:

①重新调整或者修研，用0.03mm塞尺不入为合格

① Readjust or research again, and it is qualified if 0.03mm feeler gauge is not used

②用控制系统自动补偿能间隙，同仪器测量并调整丝杆窜动

② The clearance can be eliminated by automatic compensation of the control system, and the screw rod movement can be measured and adjusted with the instrument

③调整预紧力，检查轴向窜动值，使其误差不大于0.015mm

③ Adjust the preload and check the axial displacement value, so that the error is not more than 0.015mm

④修理调整

④ Repair and adjustment

⑤调节各自导轨面均有润滑油

⑤ Adjust to each guide surface with lubricating oil

⑥重新调整或者修研，使接触率达到70%以上，用0.03mm塞尺不入为合格

⑥ Readjust or repair to make the contact rate above 70%, and it is qualified if 0.03mm feeler gauge is not used

⑦重新紧固并用百分表示反复测试

⑦ Retighten and repeat the test in percentage

⑧排除干涉部位

⑧ Eliminate the interference site

⑨修理调整或者加垫处理

⑨ Repair adjustment or cushion treatment

滚珠丝杆作为机床上更多人使用的高精密传动元件，它的高精度特性给加工带来的高速进给特性，但同时如果操作稍有不当就会容易出现较多的误差，针对误差的分析，上文从出现的原因以及解决方法进行了详细的讲解，希望对你有所帮助。

Ball screw is the most used high-precision transmission element on the machine tool, its high-precision characteristics bring unprecedented high-speed feed characteristics to the machining center, but at the same time, if the operation is slightly improper, it is easy to have more errors. According to the error analysis, the reasons and solutions are explained in detail, hoping to help you.