CH630186A5 - Method for producing an electronic program usable on the machine tool - Google Patents

Method for producing an electronic program usable on the machine tool Download PDF

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Publication number
CH630186A5
CH630186A5 CH602779A CH602779A CH630186A5 CH 630186 A5 CH630186 A5 CH 630186A5 CH 602779 A CH602779 A CH 602779A CH 602779 A CH602779 A CH 602779A CH 630186 A5 CH630186 A5 CH 630186A5
Authority
CH
Switzerland
Prior art keywords
tool
motor
program
spindle
machine
Prior art date
Application number
CH602779A
Other languages
French (fr)
Inventor
Paul Willemin
Original Assignee
Willemin Machines Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Willemin Machines Sa filed Critical Willemin Machines Sa
Priority to CH602779A priority Critical patent/CH630186A5/en
Priority to DE19792934658 priority patent/DE2934658A1/en
Publication of CH630186A5 publication Critical patent/CH630186A5/en

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical 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
    • G05B19/182Numerical 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 characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
    • G05B19/184Generation of cam-like surfaces
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/42Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • G05B19/4207Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a model is traced or scanned and corresponding data recorded

Description

630 186 630 186

Claims (1)

REVENDICATION Procédé pour la réalisation d'un programme électronique utilisable sur une machine-outil dont les déplacements de la broche, portant la pièce à usiner, sont asservis à des déplacements de l'outil qui sont commandés par un moteur entraînant une vis sur laquelle est monté le porte-outil, caractérisé par le fait qu'on remplace l'ébauche de la pièce en travail, sur ladite broche, par un modèle de ladite pièce et remplace le porte-outil, sur ladite vis, par un dispositif palpeur électro-mécanique dont l'organe palpeur est maintenu en contact avec ledit modèle de la pièce, le tout de manière qu'à chaque position angulaire de la broche corresponde une position du dispositif palpeur et, partant, du moteur commandant ses déplacements, l'ensemble des paires d'informations ainsi établies constituant le programme désiré. CLAIM Process for the production of an electronic program usable on a machine tool whose movements of the spindle, carrying the workpiece, are slaved to movements of the tool which are controlled by a motor driving a screw on which is mounted the tool holder, characterized in that the blank of the workpiece is replaced, on the said spindle, by a model of the said part and the tool holder is replaced, on the said screw, by an electro-magnetic feeler device mechanism whose feeler member is kept in contact with said model of the part, all in such a way that each angular position of the spindle corresponds to a position of the feeler device and, consequently, of the motor controlling its movements, all of the pairs of information thus established constituting the desired program. La présente invention a pour objet un procédé pour la réalisation d'un programme électronique utilisable sur une machine-outil dont les déplacements de l'outil, commandés par un moteur entraînant une vis sur laquelle est monté le porte-outil, sont asservis aux déplacements de la broche portant la pièce à usiner.The subject of the present invention is a method for producing an electronic program that can be used on a machine tool, the movements of the tool of which, controlled by a motor driving a screw on which the tool holder is mounted, are slaved to the movements of the spindle carrying the workpiece. Dans les machines-outils du type susmentionné, la came ou gabarit mécanique de commande des déplacements de l'outil par rapport à la pièce à usiner est remplacée par une «came électronique», c'est-à-dire un programme électronique qui permet d'être stocké et réutilisé en tout temps, comme aussi d'être remplacé par un autre programme électronique très facilement et rapidement.In the machine tools of the aforementioned type, the cam or mechanical jig for controlling the movements of the tool with respect to the workpiece is replaced by an "electronic cam", that is to say an electronic program which allows to be stored and reused at any time, as well as to be replaced by another electronic program very easily and quickly. Le but de l'invention est de permettre de réaliser un tel programme électronique sur la machine même sur laquelle ce-lui-ci est employé.The object of the invention is to make it possible to carry out such an electronic program on the very machine on which it is used. Ce but est atteint grâce aux moyens revendiqués.This object is achieved thanks to the claimed means. Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention.The drawing shows, by way of example, one embodiment of the subject of the invention. La f ig. 1 est une vue schématique d'une machine-outil utilisant un programme électronique, représentée en position de travail (usinage), alors queFig. 1 is a schematic view of a machine tool using an electronic program, represented in the working position (machining), while La fig. 2 représente, également schématiquement, la même machine, mais utilisée pour l'élaboration du programme électronique.fig. 2 represents, also schematically, the same machine, but used for the development of the electronic program. La machine représentée comprend une broche porte-pièce, représentée par son seul axe, désigné par 1, entraînée par un moteur 2 et qui porte la pièce à usiner désignée par 3. L'outil d'usinage, ici une fraise 4, est entraîné en rotation par un moteur 5, constituant le support d'outil, qui lui-même peut se déplacer longitudinalement suivant la direction de la flèche 6, entraîné par une vis de commande 7, elle-même entraînée par un moteur 8.The machine represented comprises a workpiece spindle, represented by its single axis, designated by 1, driven by a motor 2 and which carries the workpiece designated by 3. The machining tool, here a milling cutter 4, is driven in rotation by a motor 5, constituting the tool support, which itself can move longitudinally in the direction of arrow 6, driven by a control screw 7, itself driven by a motor 8. Le dispositif électronique de cette machine comprend un codeur 9, par exemple un codeur optique, entraîné par le moteur 8, un codeur 10 entraîné par le moteur 2, un programme ou support d'informations 11, un ordinateur 12 dont les sorties 13 et 14 vont au moteur 2, respectivement 8, par l'intermédiaire d'un amplificateur 15, respectivement 16, et un circuit de conversation 17 transmettant les ordres donnés par l'opérateur.The electronic device of this machine comprises an encoder 9, for example an optical encoder, driven by the motor 8, an encoder 10 driven by the motor 2, a program or information medium 11, a computer 12 whose outputs 13 and 14 go to motor 2, respectively 8, via an amplifier 15, 16 respectively, and a conversation circuit 17 transmitting the orders given by the operator. Le moteur 2 fait tourner la pièce 3 alors que le codeur 10 fournit à l'ordinateur 12 en permanence l'indication de la position angulaire instantanée de la pièce. A chaque changement de cette position angulaire, l'ordinateur «questionne» le programme 11 pour savoir quelle doit être la position du support d'outil 5. Aussitôt, la boucle d'asservissement constituée par l'ordinateur 12, l'amplificateur 16, le moteur 8, et le codeur 9 provoque la correction nécessaire, amenant ainsi le support d'outil 5, c'est-à-dire l'outil 4 lui-même, dans la position requise. Grâce à cette disposition, le profil voulu est donné à la pièce 3, le programme 11 jouant le rôle de came électronique.Motor 2 rotates part 3 while encoder 10 permanently supplies computer 12 with an indication of the instantaneous angular position of the part. Each time this angular position changes, the computer "queries" the program 11 to find out what the position of the tool support 5 should be. the motor 8, and the encoder 9 causes the necessary correction, thus bringing the tool support 5, that is to say the tool 4 itself, into the required position. Thanks to this arrangement, the desired profile is given to the part 3, the program 11 acting as an electronic cam. La réalisation du programme 11 à l'aide de la machine elle-même est illustrée à la fig. 2 dans laquelle la pièce 3, sur la broche 1, est remplacée par un modèle 18 de ladite pièce ou par un exemplaire de celle-ci réalisé prédédemment à l'aide d'autres moyens que ladite machine. L'outil 4 sur le support 5 est remplacé par un dispositif palpeur 19, magnétique, statique, poten-tiométrique, etc., connu en soi, qui, par mesure de simplification, a été symboliquement représenté par un organe de palpage 20 et deux plots de contact 21 et 22 avec lesquels l'organe de palpage 20 entre en contact, respectivement, selon qu'il est ou non en contact avec le modèle 18 de la pièce à usiner. Les informations produites par le palpeur 19 sont envoyées à l'amplificateur 16 par deux lignes 23 et 24.The execution of the program 11 using the machine itself is shown in fig. 2 in which part 3, on spindle 1, is replaced by a model 18 of said part or by a copy of the latter made previously using means other than said machine. The tool 4 on the support 5 is replaced by a sensor device 19, magnetic, static, poten-tiometric, etc., known per se, which, for simplification, has been symbolically represented by a feeler member 20 and two contact pads 21 and 22 with which the feeler member 20 comes into contact, respectively, depending on whether or not it is in contact with the model 18 of the workpiece. The information produced by the sensor 19 is sent to the amplifier 16 by two lines 23 and 24. Le moteur 2 fait tourner la broche 1 portant le modèle 18 de la pièce, le codeur 10 transmettant en permanence à l'ordinateur 12 les informations relatives à la position angulaire instantanée de la broche.The motor 2 rotates the spindle 1 bearing the model 18 of the part, the encoder 10 continuously transmitting to the computer 12 the information relating to the instantaneous angular position of the spindle. Simultanément, la boucle d'asservissement constituée par le palpeur 19, l'amplificateur 16, le moteur 8 et la vis 7 agit pour amener le palpeur 19 dans une position telle que son organe de palpage 20 effleure légèrement le modèle 18 de la pièce, sans appuyer ni s'en séparer, de sorte que le moteur 8 prend constamment la position qu'il devrait avoir s'il s'agissait d'un usinage. Il résulte de cet agencement que le codeur 9 fournit à l'ordinateur 12 la coordonnée exacte de l'outil en correspondance avec la coordonnée angulaire de la broche 1.Simultaneously, the servo loop constituted by the feeler 19, the amplifier 16, the motor 8 and the screw 7 acts to bring the feeler 19 into a position such that its feeler member 20 slightly touches the model 18 of the part, without pressing or separating from it, so that the motor 8 constantly assumes the position it should have if it were machining. It follows from this arrangement that the encoder 9 provides the computer 12 with the exact coordinate of the tool in correspondence with the angular coordinate of the spindle 1. L'ordinateur enregistre, à chaque changement de la position angulaire de la broche 1, la position du support 5, l'ensemble des informations ainsi réalisées étant stockées sur un support d'informations 11 destiné à devenir le programme désiré. Ce support pourra être constitué par une mémoire morte, une minicassette, un floppy disk ou autre qui pourra être stocké joint au dessin de la pièce à laquelle il se rapporte et qui pourra être aisément mis en place dans la machine, le stockage et le remplacement dudit programme étant beaucoup plus aisés que ceux d'une came mécanique.The computer records, at each change in the angular position of spindle 1, the position of support 5, all of the information thus produced being stored on an information support 11 intended to become the desired program. This medium may consist of a read only memory, a mini-cassette, a floppy disk or other which may be stored attached to the drawing of the part to which it relates and which may be easily installed in the machine, storage and replacement said program being much easier than those of a mechanical cam. Il est à remarquer que l'ordinateur 12 permet d'autres possibilités: c'est ainsi que, par un traitement analytique des informations, il est possible d'apporter toute correction utile au programme relative, par exemple, au diamètre de l'outil de coupe, au passage d'un usinage s'appliquant à l'extérieur de la pièce à un usinage intérieur, mais de conformation identique, ou vice versa, à un changement d'échelle, etc.It should be noted that the computer 12 allows other possibilities: thus, by an analytical processing of the information, it is possible to make any useful correction to the program relating, for example, to the diameter of the tool of cutting, to the passage from a machining applied to the outside of the part to an internal machining, but of identical conformation, or vice versa, to a change of scale, etc. 22 55 1010 1515 2020 2525 3030 3535 4040 4545 5050 5555 CVS 1 feuille dessins1 drawing sheet
CH602779A 1979-06-28 1979-06-28 Method for producing an electronic program usable on the machine tool CH630186A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH602779A CH630186A5 (en) 1979-06-28 1979-06-28 Method for producing an electronic program usable on the machine tool
DE19792934658 DE2934658A1 (en) 1979-06-28 1979-08-28 METHOD FOR CREATING AN ELECTRONIC PROGRAM TO BE USED IN A MACHINE TOOL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH602779A CH630186A5 (en) 1979-06-28 1979-06-28 Method for producing an electronic program usable on the machine tool

Publications (1)

Publication Number Publication Date
CH630186A5 true CH630186A5 (en) 1982-05-28

Family

ID=4303029

Family Applications (1)

Application Number Title Priority Date Filing Date
CH602779A CH630186A5 (en) 1979-06-28 1979-06-28 Method for producing an electronic program usable on the machine tool

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CH (1) CH630186A5 (en)
DE (1) DE2934658A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498493A1 (en) * 1981-01-26 1982-07-30 Rondolotti Ets IMPROVED REPELLENT TOWER
DE3136241C2 (en) * 1981-09-12 1984-10-31 Präzisions-Technik GmbH Wertheim, 6980 Wertheim Use of a probe element and probe element that can be moved with the grinding wheel of an NC repetition-controlled projection shape grinding machine for this use
EP0092364A1 (en) * 1982-04-14 1983-10-26 The Hanwell Optical Co. Limited A method of and apparatus for dimensioning a lens to fit a spectacle frame
SE444648B (en) * 1984-09-03 1986-04-28 Robert Ek PROCEDURE AND DEVICE FOR SLIPPING SLIDING SLIDE
DE3637758A1 (en) * 1986-11-05 1988-05-19 Salje Ernst METHOD AND DEVICE FOR DEEP GRINDING
EP0455855B1 (en) * 1990-05-09 1995-04-12 Siemens Aktiengesellschaft Method and device for the manufacture of medical in particular dental, prosthesis

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Publication number Publication date
DE2934658A1 (en) 1981-01-15

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