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1. (WO1987003711) STONE EXPANSION CONTROL FOR A HONING MACHINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1987/003711 International Application No.: PCT/GB1986/000766
Publication Date: 18.06.1987 International Filing Date: 16.12.1986
IPC:
G05B 19/18 (2006.01) ,G05B 19/4093 (2006.01)
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19
Programme-control systems
02
electric
18
Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19
Programme-control systems
02
electric
18
Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
4093
characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
Applicants:
DELAPENA HONING EQUIPMENT LIMITED [GB/GB]; P.O. Box 6 Runnings Road Cheltenham Gloucestershire, GB (AllExceptUS)
BOULTON, Michael, André [GB/GB]; GB (UsOnly)
ROBERTS, Joseph, Ian [GB/GB]; GB (UsOnly)
BASSIRAT, Hamid, Reza [GB/GB]; GB (UsOnly)
Inventors:
BOULTON, Michael, André; GB
ROBERTS, Joseph, Ian; GB
BASSIRAT, Hamid, Reza; GB
Agent:
SMITH, Martin, Stanley; Stevens, Hewlett & Perkins 5 Quality Court Chancery Lane London WC2A 1HZ, GB
Priority Data:
853092116.12.1985GB
861591530.06.1986GB
Title (EN) STONE EXPANSION CONTROL FOR A HONING MACHINE
(FR) COMMANDE DE L'EXPANSION DES PIERRES DANS UNE MACHINE A PIERRER
Abstract:
(EN) A honing machine has a stone expansion system in which the honing stones are expanded radially via wedges by radial movement generated by a d.c. wedge motor. The motor (13) is driven by a constant-current amplifier (50) which provides a driving current according to a required stone pressure (a). This determines the torque of the motor during honing. A speed input (g) sets a required approach speed and from this is derived a control signal which controls an on/off controller (55). This causes the output current of the constant-current amplifier to be chopped, thereby controlling speed as the stones approach the wall of the bore whilst allowing control of torque during honing.
(FR) Une machine à pierrer possède un système d'expansion des pierres abrasives dans lequel lesdites pierres sont expansées radialement via des coins par le déplacement radial produit par un moteur oblique à courant continu. Le moteur (13) est entraîné par un amplificateur (50) à courant constant qui délivre un courant d'excitation en fonction de la pression (a) des pierres exigée. Cela détermine le couple du moteur durant le pierrage. Un signal d'entrée de vitesse (g) établit la vitesse d'approche souhaitée à partir de laquelle est dérivé un signal qui commande une unité de commande (55) de marche/arrêt. Cela provoque le hachage du courant de sortie de l'amplificateur à courant constant, assurant ainsi la régulation de la vitesse à mesure que les pierres s'approchent de la paroi de l'alésage tout en permettant une régulation du couple durant le pierrage.
Designated States: JP, KP, KR, SU, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0248070US4823061