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1. WO1990003249 - METHOD FOR LATHE MACHINING OF PARTS PRESENTING A SURFACE WHICH IS NOT A REVOLUTION SURFACE

Publication Number WO/1990/003249
Publication Date 05.04.1990
International Application No. PCT/FR1989/000481
International Filing Date 22.09.1989
IPC
B23Q 33/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
33Methods for copying
B23Q 35/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
35Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
04using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
08Means for transforming movement of the feeler or the like into feed movement of tool or work
10mechanically only
F16H 53/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
53Cams or cam-followers, e.g. rollers for gearing mechanisms
CPC
B23Q 33/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
33Methods for copying
B23Q 35/103
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
35Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
04using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
08Means for transforming movement of the feeler or the like into feed movement of tool or work
10mechanically only
101with a pattern composed of one or more lines used simultaneously for one tool
102of one line
103which turns continuously
F16H 53/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
53Cams; Non-rotary cams; Cam followers, e.g. rollers
Applicants
  • J2T VIDEO (TONNERRE) S.A. [FR]/[FR]
Inventors
  • GANCEL, Etienne
Agents
  • CHAVERNEFF, Vladimir
Priority Data
88/1246323.09.1988FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR LATHE MACHINING OF PARTS PRESENTING A SURFACE WHICH IS NOT A REVOLUTION SURFACE
(FR) PROCEDE D'USINAGE AU TOUR DE PIECES COMPORTANT UNE SURFACE QUI N'EST PAS DE REVOLUTION
Abstract
(EN)
The invention relates to a method for machining parts having a non circular cross-section. A blank is rotated about an axis, and is attacked with a cutting tool to which cyclic axial and/or radial motions are imparted synchroneously with the rotation of the blank. During at least one portion of the cycle during which the tool gets close to or goes away from a fixed reference plane or the rotation axis, the law of speeds of the tool motion is essentially formed of successive sections (101, 111, 121; 102, 112, 122) each corresponding to a constant acceleration, said accelerations bringing the axial or radial speed to the extremities of said portion to be equal with that of the remainder of the cycle at the transition time.
(FR)
L'invention est relative à un procédé pour usiner des pièces à section droite non circulaire. On fait tourner une ébauche autour d'un axe, et on l'attaque avec un outil de coupe auquel on imprime des mouvements axiaux et/ou radiaux cycliques de façon synchronisée avec la rotation de l'ébauche. Sur au moins une partie du cycle au cours de laquelle l'outil s'approche ou s'écarte d'un plan fixe de référence ou de l'axe de rotation, la loi de vitesses du mouvement de l'outil est formée essentiellement de sections successives (101, 111, 121; 102, 112, 122) correspondant chacune à une accélération constante, ces accélérations amenant la vitesse axiale ou radiale aux extrémités de cette partie, à être égale à celle du reste du cycle au moment de la transition.
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