2016年7月19日星期二

Ball Screw Installation in CNC Machine

Supertime Technical Department

Each component installation and commissioning will directly affect CNC machine processing efficiency and accuracy. Better installation and commissioning can improve efficiency and precision, meanwhile cost-saving of usage and maintenance.


Brief view:
Ball screw is a mechanical linear actuator that translates rotational motion to linear motion with little friction. Able to apply or withstand high thrust loads, can do with minimum internal friction. They are made to close tolerances and are therefore suitable for use in situations in which high precision is necessary.



Applications:
Used in machine tools, robots and precision assembly equipment, high precision ball screws are used in steppers for semiconductor manufacturing.


Operations:
1) Ball screws can operate with some preload, effectively eliminating slop between input (rotation) and output (linear motion), this feature is vital when used in CNC machine tools and high precision motion applications.

2) Keep ball screw in effective stroke, avoid nut out of ball screw shaft.

3) Ball screw axis should be parallel to supporting guide rail axis. Center of bearing seat on two ends and center of nut seat should be in a line of 3 points.



4) In CNC machine installation and commissioning should pay attention to: spindle bearing installation, linear rolling guide installation, hydraulic system, pneumatic and CNC system installation etc.



5) Lack of sliding friction between nut and screw pends itself to extend lifespan of screw assembly reducing downtime for maintenance and parts replacement, while also decreasing demand for lubrication.


Jinan Supertime Technology Co.,Ltd 
A
 tailored CNC machine manufacturer specialist.
Recognized
 by Chinese government. 
Machine ranges from CNC machine for angle punching, marking and drilling, plate drilling, beam line, band saw to tue sheet and baffle plate drilling etc.

More info:

Jinan Supertime Technology Co.,Ltd
Tailored CNC machine manufacturer specialist

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