数控车床精密滚珠丝杠装配后进行静态精度检查时合格，但在试车后或使用一段时间后出现精密滚珠丝杠的轴向跳动严重超差，影响了机床的加工精度，设备返修率为43%，给企业带来巨大的经济损失和声誉损失。下面导轨丝杠厂家为您分析：

After assembling the precision ball screw of a CNC lathe, it passed the static accuracy inspection, but the axial runout of the precision ball screw occurred after a test run or after a period of use, seriously exceeding the tolerance, affecting the machining accuracy of the machine tool. The equipment repair rate is 43%, bringing huge economic losses and reputation losses to the enterprise. The following guide rail lead screw manufacturers analyze for you:

1.精密滚珠丝杠精度达不到要求

1. Precision ball screw accuracy cannot meet the requirements

滚珠丝杠在入库时已进行了精度检验，可排除本身的质量问题。但细长轴类零件(机床丝杆等)在保管时应该采用垂直放置，以免受重力变形影响精度。该滚珠丝杠采专用包装箱垂直放置，在装配后的静态检查合格，因此可以排除此项。

The accuracy of the ball screw has been inspected before warehousing, which can eliminate its own quality problems. However, when storing slender shaft parts (machine tool screw rods, etc.), they should be placed vertically to avoid gravity deformation affecting accuracy. The ball screw is vertically placed in a special packaging box and passes the static inspection after assembly, so this item can be excluded.

2.装配不当损坏了丝杠的精度

Improper assembly damages the accuracy of the lead screw

通过了解，装配工人对精密滚珠丝杠组件熟悉的，装配时也是格外小心，完全按装配工艺进行的，因此也排除了这种可能。

Through understanding, assembly workers are familiar with precision ball screw components, and they are also extremely careful when assembling, completely following the assembly process, thus eliminating this possibility.

3.机床行程超程，工作台发生碰撞，导致精度损坏

3. The machine tool stroke exceeds the range, and the workbench collides, resulting in accuracy damage

操作机床时发生超程，容易导致机床碰撞而引起的。但经了解机床的行程限位开关没有问题，用户也没有这方面的意见反馈。

Overtravel occurs when operating the machine tool, which is easily caused by machine tool collision. However, it is understood that there is no problem with the travel limit switch of the machine tool, and the user has no feedback on this aspect.

4.检测方法不正确，导致精度超差

4. The detection method is incorrect, resulting in an out of tolerance accuracy

检验员采用千分表配合磁力表座，以工作台直线导轨滑座为检测基准进行检测，检测方法及检测基准也符合要求。

The inspector uses a dial indicator in conjunction with a magnetic meter base to conduct the inspection using the linear guide rail slide of the workbench as the inspection benchmark. The inspection method and inspection benchmark also meet the requirements.

5.装配工艺不正确，造成装配误差

5. Incorrect assembly process, resulting in assembly errors

精密滚珠丝是数控设备上广泛使用，由控制系统发出的脉冲信号控制伺服电机的旋转，再由精密滚珠丝杠将伺服电机的旋转运动转换成工作台的直线运动，从而实现工件的加工轨迹控制。因此，装配工艺及精度检测都很严格，对装配工人的技术要求也较高。您对此有什么就来我们网站http://www.jngongrun.com咨询吧！

Precision ball screw is widely used in CNC equipment. The pulse signal sent by the control system controls the rotation of the servo motor, and then the precise ball screw converts the rotational motion of the servo motor into linear motion of the workbench, thereby achieving the processing trajectory control of the workpiece. Therefore, the assembly process and accuracy testing are very strict, and the technical requirements for assembly workers are also high. If you have any questions about this, please come to our website http://www.jngongrun.com Consult!