Servo stroking apparatus and system

B - Operations – Transporting – 24 – B

Patent

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B24B 33/06 (2006.01)

Patent

CA 2570690

A servo stroking apparatus and system for honing wherein the cam stroking motion follows a cam profile which produces a finite jerk profile for reducing machine vibration and optimizing one or more honing parameters. The cam profile can be selected for example from a simple harmonic cam profile, a cycloidal profile, a modified trapezoidal profile, a polynomial profile, and a modified sine profile, or a mix of cam profiles. The servo controlled stroker mechanism can include for instance a ball screw mechanism, a linear motor, a fluid cylinder, a chain drive or a belt drive. One or more other servo controlled aspects of the honing operation can be synchronized with the servo controlled stroking operation, such as the rotation of the honing tool.

L'invention concerne un dispositif et un système de frappe asservis, destinés à l'affûtage, dans lesquels le mouvement de frappe de la came suit un profil de came qui produit un profil de saccade finie pour réduire les vibrations de la machine et optimiser un ou plusieurs paramètres d'affûtage. Le profil de came peut être sélectionné, par exemple, parmi un profil de came harmonique simple, un profile cycloïdal, un profil trapézoïdal modifié, un profil polynomiale et un profil sinusoïdal modifié, ou un mélange de profiles de came. Le mécanisme de frappe asservi peut comprendre, par exemple, un mécanisme de vis à billes, un moteur linéaire, un cylindre à fluide, une transmission par chaîne ou une transmission par courroie. Un ou plusieurs autres aspects de l'affûtage asservi peuvent être synchronisés avec l'opération de frappe asservie, tels que la rotation de l'outil d'affûtage.

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