Accuracy and repeatability positioning of high-performance lathe for non-circular turning

• Autorzy: Majda P. , Powałka B.

Identyfikatory

DOI

10.1515/amtm-2017-0014

• Języki publikacji: EN

Abstrakty

EN

This paper presents research on the accuracy and repeatability of CNC axis positioning in an innovative lathe with an additional X₂ axis. This axis is used to perform movements synchronized with the angular position of the main drive, i.e. the spindle, and with the axial feed along the Z axis. This enables the one-pass turning of non-circular surfaces, rope and trapezoidal threads, as well as the surfaces of rotary tools such as a gear cutting hob, etc. The paper presents and discusses the interpretation of results and the calibration effects of positioning errors in the lathe’s numerical control system. Finally, it shows the geometric characteristics of the rope thread turned at various spindle speeds, including before and after-correction of the positioning error of the X₂ axis.

Słowa kluczowe

EN

machine tool; laser interferometer; cyclic pitch error; accuracy; repeatability

PL

obrabiarki; interferometr laserowy; cykliczny błąd skoku; dokładność; powtarzalność

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Archives of Mechanical Technology and Materials
• Rocznik: 2017
• Tom: Vol. 37
• Strony: 85--90
• Opis fizyczny: Bibliogr. 15 poz., fig., tab.

Twórcy

autor

Majda P.

• West Pomeranian University of Technology, Faculty of Mechanical Engineering and Mechatronics, Institute of Manufacturing Engineering, al. Piastów 19, 70-310 Szczecin, Poland

autor

Powałka B.

• West Pomeranian University of Technology, Faculty of Mechanical Engineering and Mechatronics, Institute of Manufacturing Engineering, al. Piastów 19, 70-310 Szczecin, Poland

Bibliografia

• [1] ISO 230-2:2014, Test code for machine tools -Part 2. Determination of accuracy and repeatability of positioning of numerically controlled axes.
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• [3] Castro H.F.F., Burdekin M., Dynamic calibration of the positioning accuracy of machine tools and coordinate measuring machines using a laser interferometer, International Journal of Machine Tools & Manufacture 43 (2003), 947-954.
• [4] Castro H.F.F., Burdekin M., Calibration system based on a laser interferometer for kinematic accuracy assessment on machine tools, International Journal of Machine Tools & Manufacture 46 (2006), 89-97.
• [5] Castro H.F.F., Burdekin M., Evaluation of the measurement uncertainty of a positional error calibrator based on a laser interferometer, International Journal of Machine Tools & Manufacture 45 (2005), 285-291.
• [6] Castro H.F.F., Uncertainty analysis of a laser calibration system for evaluating the positioning accuracy of a numerically controlled axis of coordinate measuring machines and machine tools, Precision Engineering 32 (2008), 106-113.
• [7] Miller J.E., Longstaff A.P., Parkinson S., Fletcher S., Improved machine tool linear axis calibration through continuous motion data capture, Precision Engineering 47 (2017), 249-260.
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• [10] Shou-qing Z.et al., The Research on Key Technologies of CNC System Thread Processing Based on RT Linux, Modular Machine Tool & Automatic Manufacturing Technique 4 (2009), 024.
• [11] Park H., Sungsik F., Kim S.-H. and Cho H., Kernel software for efficiently building, re-configuring, and distributing an open CNC controller, The International Journal of Advanced Manufacturing Technology 27.7-8 (2006), 788-796.
• [12] Marchelek K., Dynamika obrabiarek, WNT, Warszawa 1997.
• [13] Jastrzębski R., Kowalski T., Osówniak P., Szepke A., Metody badań błędów ruchów technologicznych precyzyjnych centrów tokarskich CNC, Pomiary automatyka Robotyka 1 (2012), 67-73.
• [14] Jastrzębski R., Kowalski T., Osówniak P., Szepke A., Diagnostyka wrzecion obrabiarek na podstawie pomiarów błędnych ruchów wirujących osi, Acta Mechanica et Automatica, vol. 4, no.2 (2010), 81-85.
• [15] www.renishaw.com.pl (2017-03-01).

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).

Prace wykonane w ramach projektu INNOTECH/K3/IN3/18/226861/NCBR/14 finansowanego przez NCBiR.