Proposal of a Machining Test of Five-Axis Machining Centers Using a Truncated Square Pyramid

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NAS 979 has been used for over 40 years as a performance evaluation standard for five-axis machining centers. This standard provides some finishing conditions of the cone-frustum under five-axis control, and prescribes the measuring methods and permissible tolerances of geometric deviations. However, this standard cannot be applied to the tilting rotary table type five-axis machining center but to the universal spindle head type one. When the standard is applied to the tilting rotary table type, it is not clear yet that the effects of the geometric and synchronous deviations which influence the measured results. Thus, there are no methods for evaluating the accuracy of linear interpolation movement under simultaneous five-axis control. This paper proposes a machining test method using a truncated square pyramid for checking the accuracy of the tilting rotary table type five-axis machining centers. In the simulation and experiment, the bottom of the truncated square pyramid with a half apex angle of 15° is mounted on a fixture with a slope of 10° or 20°, and feed velocity of each axis is analyzed by changing the center position.

Info:

Periodical:

Key Engineering Materials (Volumes 523-524)

Edited by:

Tojiro Aoyama, Hideki Aoyama, Atsushi Matsubara, Hayato Yoshioka and Libo Zhou

Pages:

475-480

Citation:

K. Ohta et al., "Proposal of a Machining Test of Five-Axis Machining Centers Using a Truncated Square Pyramid", Key Engineering Materials, Vols. 523-524, pp. 475-480, 2012

Online since:

November 2012

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$38.00

[1] NAS 979, Uniform cutting tests NAS series, metal cutting equipment specifications, 1969, 34-37.

[2] M. TSUTSUMI, T. SAIKI, S. KIOTOSHI, C. CUI, Y. IHARA, Test Method for Five-axis Machining Centres Based on Machining of Truncated Square Pyramid,Transactions of the Japan Society of Mechanical Engineers. C, 77-780, 2011, pp.3137-3148.

DOI: https://doi.org/10.1299/kikaic.77.3137

[3] Inasaki I, Kishinami K, Sakamoto S, Sugimura N, Takeuchi Y and Tanaka F, Form shaping theory of machine tools – fundamentals and applications, Yokendo, Tokyo, (1997).

[4] M.TSUTSUMI, D. YUMIZA, K. UTSUMI and R. SATO, Evaluation of Synchronous Motion in Five-axis Machining Centers With a Tilting Rotary Table, Journal of Advanced Mechanical Design, Systems, and Manufacturing , 1-1, 2007 , pp.24-35.

DOI: https://doi.org/10.1299/jamdsm.1.24