How to Detect And Restore Ball Screw?

A ball screw is considered the most superior ball screw repair usually used device of mechanical transmission elements and precision machining, its major purpose is always to transform rotary movement into linear movement or force-torque to axial frequently, both characteristics of higher precision, high performance and reversibility. As a result of its tiny friction resistance, the ball screw is widely employed in different precision equipment and instrument industries!



You will find many types of errors inside the ball screw, and there is no fixed product. Some blunders are gradual failures, there ought to be considered a advancement method, while using the rising use of more plus more significant time; often a sudden failure, typically does not have apparent indicators of unexpected, this failure can be a assortment of unfavourable components and the ensuing exterior interactions. Hence, the correct exam to ascertain the cause of true glitches would be the premise of speedy and accurate servicing. For ball screw fix also must be thought of.

1 Ball screw, nut and assistance clearing procedure Detection and restore

If the CNC equipment resource reverses error and large positioning precision, quadrant mark is unstable, the main detail to detect the procedure screw there is a variance. Detection approach: indicator which has a ball at the centre end of your hole of your screw, axial measurement screw, a dial gauge piece measuring the do the job desk. Screw rotation, observing the 2 blocks around the indicator dial shows, based on improvements in several values confirm the placement of the error.

2 FAG Detection and fix of clearing screw bearings

If the indicator dial measures the screw inside the ball screw forward and reverses rotation the pointer swing isn't going to, that there is no screw movement. Should the swing cursor indicator signifies the channelling screw phenomenon. The indicator dial measures the difference amongst the utmost and minimum values that are the axial length in the screw. At this point, we'll examine if the bearing back again bearing assistance is locked, whether or not the bearing is worn out or not, whether or not the preload washer bearing is appropriate or not. In the event the bearing is Okay, just re-load the pre-loaded gasket. If the bearing is broken, the bearing really should get replaced, re-loaded while using the pre-load washer, and afterwards supported once again. The axial motion from the direct screw depends generally within the precision of your bearing preload. One of the most suitable condition from the accuracy in the set up of screw rods is that there is not any beneficial and unfavorable clearance, as well as the guidance bearings should be about 0.02mm interference.

three FAG Detection and routine maintenance of gaps amongst pairs of two ball screw nuts

By inspection, if an error is confirmed, it is not due to the movement on the direct screw. Have to think about if the screw nut, the hole amongst the two, Detection of this situation generally with the detection from the guide screw moving a similar. Worktable related with dial and nut indicator, forward and reverse screw rotation, detect optimum clearance concerning screw and nut after which be modified.

four FAG inspection and maintenance of one pair nuts

For 1 ball screw nut, the hole among the screw pair plus the nut can't be modified. Should the guide screw nut is detected, you can find a gap. Very first, test the guide screw and thread bow nut Are worn, like significant have on, really need to swap the whole list of direct screw nuts.

If tiny put on is detected, a bigger diameter ball might be changed to fix it. 1st, the maximum clearance from the detected pair nut screws is converted to an increase in ball diameter and afterwards outfitted with the proper ball to regroup. This sort of upkeep is advanced and needs quite a while and requires a significant degree of know-how.

5 The beam flanges and tables are connected, you'll find gaps nonetheless there

This issue can be simply ignored for many years, reciprocating the motor, free screw Fala disc gap, verify the hole while in the failure issue with the screw to exclude, to avoid repairs.

6 Ball screw nut movement isn't too much sound, clean servicing together with other failures

Ball screw nut actions will not be clean and also the sounds is just too substantial, largely on account of very poor lubrication, but in some cases it may be since the servo motor drive parameters usually are not modified effectively brought about.

For ball screw repair, you'll be able to rely on us. Go to our site for additional in-depth information and phone us straight away, we will be joyful to help you you.