A new mechanism for boring of noncircular hole and its evaluation via simulation

Zhang, Kai; Li, Shiping; Yang, Qingzhu; Niuming, Tang

doi:10.1109/icinfa.2009.5205066

Cited by 1 publication

(4 citation statements)

References 8 publications

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“…The sufficient conditions and control equations when a = 0 or a = p. Since a = 0 and a = p are two particular values of a, these two particular values could be substituted into equation (8) to investigate the sufficient conditions and control equations.…”

Section: Analysis Of the Movement Forming Methodsmentioning

confidence: 99%

“…From equations (12) and (13), it can be obtained that vt 3 = vt 1 + p. In order to prove the equivalence of these two minimum values, we can substitute vt 3 = vt 1 + p into equation (8), and after simplification we can find that x(vt 3 ) = À x(vt 1 ) and y(vt 3 ) = À y(vt 1 ), which indicates these two minimum points are symmetric about the origin, so it can be proved that F min (vt) = F(vt 1 ) = F(vt 3 ). Similarly, the equivalence of these two maximum values can be proved, namely, F max (vt) = F(vt 2 ) = F(vt 4 ).…”

Section: The Forming Principlementioning

confidence: 98%

“…By substituting D x = 0 into equation (8), the parametric equations of the tool nose orbit can be obtained and given as follows…”

Section: When a 6 ¼ 0 And A 6 ¼ Pmentioning

confidence: 99%

“…The key to the precision machining of elliptic-shaped holes lies in the precision micro-displacement radical feed mechanism. 4 Zhang and colleagues [5][6][7][8] presented a revolving electromagnetic actuation mechanism composed of an electromagnetic stator and an electromagnetic rotor. The rotor's main component is a flexure-hinged-based flexible body.…”

Section: Introductionmentioning

confidence: 99%

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Study on movement forming methods for the machining of elliptic-shaped holes

Peng

Ding

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part B:

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The movement forming methods for the machining of elliptic-shaped holes are presented. These methods can make the tool nose orbit, which is the synthesis of revolution of the hydrostatic shaft center around bearing center and rotation of the tool nose around shaft center, become an ellipse. Thus, the machining of elliptical holes can be achieved. Necessary conditions and sufficient conditions for forming elliptic tool nose orbit, under the condition that multiple shaft center orbits and the tool nose's rotation orbit take synchronous forward synthesis and synchronous backward synthesis, are studied. The influence of initial phase angle of the tool nose on the formation of elliptic tool nose orbit has also been investigated. Characteristics and control equations of elliptic tool nose orbit under the conditions of multiple shaft center orbits and different initial phase angles of the tool nose are given. These studies will lay a theoretical foundation for the realization of the movement forming methods. Traditional machining methods for elliptic-shaped holes require auxiliary feed mechanism installed on the machine tool, and machining efficiency is limited by the frequency response characteristic of the servo bar. The forming methods presented in this article can overcome these shortcomings and provide a new approach for precision machining of elliptic-shaped holes.

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Section: Analysis Of the Movement Forming Methodsmentioning

confidence: 99%

Section: The Forming Principlementioning

confidence: 98%

“…By substituting D x = 0 into equation (8), the parametric equations of the tool nose orbit can be obtained and given as follows…”

Section: When a 6 ¼ 0 And A 6 ¼ Pmentioning

confidence: 99%