Thermal Stabilization Based Investigations over Quenching Media for Spindle in CNC Machining Centers
American Journal of Modern Energy
Volume 3, Issue 1, February 2017, Pages: 10-16
Received: Mar. 27, 2017;
Accepted: Apr. 12, 2017;
Published: May 8, 2017
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Kuldeep Verma, Department of Production and Industrial Engineering, PEC University of Technology, Chandigarh, India
Rajendra M. Belokar, Department of Production and Industrial Engineering, PEC University of Technology, Chandigarh, India
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The thermal expansion in spindles of computer numeric control (CNC) machines is widespread phenomenon around the world. Thermal change affects the positioning accuracy, repeatability, run out and backlash of the entire machining center. This thermal change in spindle is related with factors like speed and heat. The heat generated during running and machining of work-piece generates considerable amount of heat. This heat further elongates spindle and reduce the performance of spindle and degrade entire efficiency of system. In order to enhance the performance, it is mandatory to dissipate heat at much faster rate than heat generated during machine running and machining. In this paper, thermal equilibrium of spindle front bearing (that is at the nose of spindle) is stabilized up to maximum extent i.e. near to the negligible level. Initially, the spindle stabilized with continuous running at different speed and quenching of spindle by rotating hydraulic oil that will be quenched naturally around the periphery of spindle. Next, hydraulic oil is used for quenching by the circulation of water around the oil reservoir. This removes heat at faster rate. After stabilization of spindle, its impact on the horizontal, vertical and axial plane has been investigated. Finally, analytical investigations have been carried out to prove the validity of spindle stabilization process.
Spindle, CNC, Thermal Stabilization, Speed
To cite this article
Rajendra M. Belokar,
Thermal Stabilization Based Investigations over Quenching Media for Spindle in CNC Machining Centers, American Journal of Modern Energy.
Vol. 3, No. 1,
2017, pp. 10-16.
Copyright © 2017 Authors retain the copyright of this article.
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Hongrui Cao et al. The concept and progress of intelligent spindles: A review, International Journal of Machine Tools and Manufacturer. 2016.
Teng liu et al. Analytical Modelling for Thermal Errors of Motorized Spindle Unit, International Journal of Machine Tools and Manufacturer. 2016.
Zih Siang Yan et al. Measurement of the thermal elongation of high speed spindles in real time using a cat's eye reflector based optical sensor, Sensors and Actuators A: Physical Volume 221, 1 January 2015, Pages 154–160. 2015.
Zhao haito et al. Simulation of thermal behaviour of a CNC machine tool spindle, International journal of machine tool and, pp. 1003-1070, 2007.
Lin et al. Dynamic Models and Design of Spindle-Bearing Systems of Machine Tools: A Review, International Journal of Precision Engineering and manufacturing, Vol. 14, No. 3, pp. 513-521. 2013.
Chen et al. Thermal error of hydrostatic spindles, Precision Engineering Journal, Precision Engineering 35 (2011) 512–520. 2011.
Jun Yang, Hu Shi, Bin Feng, Liang Zhao, Chi Ma, Xuesong Mei: Thermal error modelling and compensation for a high speed motorized spindle. International Journal Advanced Manufacturing Technology (2015) 77: 1005-1017. 2015.
Ahmad A. D. Sarhan: Investigate the spindle error motions from thermal change for high precision CNC machining capability. International Journal of Advanced Manufacturing Technology 70: 957-963. 2014.
Kuldeep Verma, R. M. Belokar. Optimized Investigations over Diameter and Distance Based Factor towards Rigidity and Accuracy of Spindle in CNC Machining Centers. Journal for Manufacturing Science and Production. Volume 16, Issue 2, Pages 115–121, ISSN (Online) 2191-0375, ISSN (Print) 2191-4184, DOI: 10.1515/jmsp-2015-0026, June 2016.
Kuldeep Verma, R. M. Belokar. Pervasive Investigations of Critical Speed over Weight and Deflection Factors of Shaft Assembly in CNC Ball Screw System, Hindawi Publishing Corporation International Journal of Manufacturing Engineering Volume 2016, Article ID 6198278, 6 pages http://dx.doi.org/10.1155/2016/6198278