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Analysis of Common Faults in Ball Screw of Precision Engraving Machine (Shenzhen Precision Engraving

Date:06-17    Belong to:Company News
The ball screw nut pair of the precision carving machine has the advantages of high transmission accuracy and efficiency, but it still encounters some problems during use. Improper handling can lead to malfunctions, affecting the working accuracy of the precision carving machine and even causing the machine to stop working.
1. Malfunctions caused by improper pre tension control when adjusting axial clearance

The double nut type ball screw nut pair can basically eliminate axial clearance after pre tightening force adjustment. But at this point, the magnitude of the preload should be well controlled. If the preload force is too small, it cannot completely eliminate the axial clearance and cannot play a role in preloading; If the pre tightening force is too large, it will increase the no-load torque, thereby reducing the transmission efficiency, causing the drive motor to heat up and triggering an overload alarm. The way to eliminate such faults is to readjust the preload force according to the requirements, so that it can eliminate the gap and not exceed the preload force< Br style="color: RGB (17, 17, 17); font family: Arabic, Helvetica, sans serif; font size: 13px; line height: 21.06px; white space: pre wrap;"/>
2. Malfunction caused by ball screw not self-locking

The friction coefficient of the ball screw nut pair is small, and it has high transmission efficiency, but it cannot be self-locking. Therefore, when the ball screw nut pair is used for vertical transmission or high-speed high inertia transmission with horizontal placement, in order to prevent the spindle box from sliding or overshoot caused by sudden power outage, it is necessary to consider installing a braking device in the transmission chain. Otherwise, abnormal faults may occur due to the self weight and inertia movement of moving parts, which may seriously damage the machine tool components. The commonly used braking methods include using an overrunning clutch, an electromagnetic friction clutch, or using a servo drive motor with a braking device< Br style="color: RGB (17, 17, 17); font family: Arabic, Helvetica, sans serif; font size: 13px; line height: 21.06px; white space: pre wrap;"/>
3. Noise of Ball Screw Nut Pair during Transmission
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Shenzhen carved CNC Equipment Co., Ltd. Copyright ICP 14057583 
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