Investigation of the Tooth Profile Error Based on the Forming Theory of Balloscrew Manufactured by Cold Rolling

doi:10.3969/j.issn.1000-1093.2015.08.031

Abstract

Abstract: The traditional material removal machining method of ballscrews was broken by cold roll-beating. The cold roll-beating method has the advantages of high efficiency, energy conservation and saving in material. The products processed by the proposed method have high wear resistance and long service life. According to differential geometry and meshing theory, the meshing model and theoretical error model are constructed for the cold roll-beating of ballscrews, and the function of contact line is provided for meshing surface. The relative movement between roller and workpiece is revealed by analyzing the meshing model and the contact line. The profile errors of the gear tooth and the actual helix of the center track of ball are investigated by theoretical calculation and simulation, the causes of errors are analyzed, and the corresponding solutions are given. A self-developed cold roll-beating experimental device is used for cold roll-beating experiment of lead screws. The experimental results show that the actual machining contour line overlaps with the theoretical contact line.

Key words: manufacturing technology and equipment, ballscrew, cold roll-beating, meshing theory, theoretical error

CLC Number:

TG66

LI Yu-xi, LI Yan, YANG Ming-shun, CUI Feng-kui, HE Xuan-jing. Investigation of the Tooth Profile Error Based on the Forming Theory of Balloscrew Manufactured by Cold Rolling[J]. Acta Armamentarii, 2015, 36(8): 1594-1600.

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