Study and Estimation of Static Stiffness of Machine Tool Spindle

Bhardwaj, Vibish S.; Aralaguppi, Ramesh H.; Badhe, Ashok N.; Bhargav,; Rao, Arun R.

doi:10.1007/978-981-15-3254-2_14

Cited by 1 publication

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application uses functions that were not available in its earlier version, which was used for preliminary research [20]. These functions include switching on the control (9), monitoring the parametric value of the spindle tip displacement on the basis of which the active support preload values (10) were selected, the ability to save measurement data (11), load the spindle work program (12) and an additional amplitude chart displacements for the front end of the spindle (13). The front view of the LabView application panel is shown in Figure 6.…”

Section: Active Adjustment Of Bearing Preloadmentioning

confidence: 99%

“…This change is made using piezoelectric elements in the full range of Adjusting the spindle stiffness depending on the current operating conditions is a problem widely discussed in the modern scientific literature. Various authors have conducted various tests to change the stiffness of the machine tool's spindle system [9][10][11][12][13][14] and have proposed various solutions, both active and passive [15,16], allowing for its change during spindle operation. The author presents a more extensive description of this issue in one of his earlier articles, which he wrote when he was dealing with the topic of active regulation of bearing preload [17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of the Control Algorithm for an Active Bearing Support

Turek

2024

Applied Sciences

View full text Add to dashboard Cite

This article presents a spindle system with an active bearing support for which the author proposed a control system based on a PID controller. This type of solution improves the mechanical properties of this spindle by changing the stiffness, which results in a wider range of permissible rotational speeds, lower power losses and an increased resistance to vibrations of the entire system. This work describes the mechanism of changing the bearing preload. During tests on a real test stand, the correct functioning of the preload control system was checked for various dynamic conditions. In this work, the author describes the controller used to work in a feedback system, explains how the settings for this controller were selected and their optimization. The assessment of the correct operation of the controller is based on minimizing the amplitude of forced vibrations for the front spindle end by actively controlling the preload of the bearings. This publication is intended to present one of the ways to solve the important problem of limiting the maximum values of the vibration amplitude in the spindle system for its wide range of operating conditions. It also shows how important its optimal settings are in control systems.

show abstract