FR2578465A1 - Spindle control system for machine tools - Google Patents
Spindle control system for machine tools Download PDFInfo
- Publication number
- FR2578465A1 FR2578465A1 FR8503541A FR8503541A FR2578465A1 FR 2578465 A1 FR2578465 A1 FR 2578465A1 FR 8503541 A FR8503541 A FR 8503541A FR 8503541 A FR8503541 A FR 8503541A FR 2578465 A1 FR2578465 A1 FR 2578465A1
- Authority
- FR
- France
- Prior art keywords
- motor
- spindle
- control system
- headstock
- spindle control
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Description
La présente invention concerne un système de commande de broche pour machines-outils telles que, notamment, machines à aléser horizontales, etc. The present invention relates to a spindle control system for machine tools such as, in particular, horizontal boring machines, etc.
Dans de telles machines, la broche est généralement entralnée à l'aide d'un moteur électrique qui est monté directement sur la poupée de la broche, de façon à suivre les déplacements de la poupée par rapport au bâti fixe. Cette solution connue présente de nombreux inconvénients. L'encombrement est excessif, car le poids de l'ensemble exige des montants de grandes dimensions pour supporter la poupée et son moteur d'entraînement, et, en outre, le montage est soumis à des distorsions quand le moteur est placé à l'extrémité de la poupée. In such machines, the spindle is generally entralné using an electric motor which is mounted directly on the headstock of the spindle, so as to follow the movements of the headstock relative to the fixed frame. This known solution has many drawbacks. The space requirement is excessive, because the weight of the assembly requires large amounts to support the headstock and its drive motor, and, moreover, the assembly is subject to distortions when the motor is placed at the end of the doll.
La présente invention se propose d'apporter un système qui ne présente pas les inconvénients des solutions connues. The present invention proposes to provide a system which does not have the drawbacks of known solutions.
En conséquence, cette invention concerne un système de commande de broche pour machines-outils dans lequel la broche est entraînée par un moteur électrique par l'intermédiaire d'une courroie sans fin, caractérisé en ce que ledit moteur est monté sur un bati de façon à pouvoir se déplacer horizontalement sur une course réduite, et en ce que l'on prévoit une liaison rigide entre l'axe du moteur et celui de la poupée entraînant la broche, afin que les déplacements verticaux de cette broche provoquent des déplacements horizontaux de course réduite du moteur sur son bâti. Accordingly, this invention relates to a spindle control system for machine tools in which the spindle is driven by an electric motor via an endless belt, characterized in that said motor is mounted on a frame so to be able to move horizontally over a reduced stroke, and in that a rigid connection is provided between the axis of the motor and that of the headstock driving the spindle, so that the vertical displacements of this spindle cause horizontal displacements of stroke reduced engine on its frame.
Selon une caractéristique de cette invention, le moteur est monté sur son bâti par l'intermédiaire de rails-glissières. According to a characteristic of this invention, the motor is mounted on its frame by means of slide rails.
Selon une autre caractéristique de l'invention, ladite liaison rigide est constituée par une bielle, de préférence en deux parties, de manière à permettre un réglage de l'entraxe moteur-poupée de broche. According to another characteristic of the invention, said rigid connection consists of a connecting rod, preferably in two parts, so as to allow adjustment of the motor-spindle center distance.
D'autres caractéristiques et avantages de cette invention ressortiront de la description faite ci-après en référence au dessin annexé, qui en illustre un exemple de réalisation dépourvu de tout caractère limitatif. Sur le dessin
- la Figure 1 est une vue schématique, en élévation latérale, d'un système de commande de broche selon l'invention ; et,
- la Figure 2 est une vue en plan de la Figure 1.Other characteristics and advantages of this invention will emerge from the description given below with reference to the appended drawing, which illustrates an embodiment thereof devoid of any limiting character. On the drawing
- Figure 1 is a schematic view, in side elevation, of a spindle control system according to the invention; and,
- Figure 2 is a plan view of Figure 1.
Sur les Figures, on voit, en 10, la broche de la machine-outil, par exemple une machine à aléser horizontale dont la poupée, montée coulissante dans les montants 16, 16' d'un bâti, est entraînée par un moteur 18, par l'intermédiaire d'une courroie sans fin 20. In the Figures, we see, at 10, the spindle of the machine tool, for example a horizontal boring machine whose headstock, slidingly mounted in the uprights 16, 16 'of a frame, is driven by a motor 18, via an endless belt 20.
Selon l'invention, le moteur est monté sur un bâti 22 de façon à pouvoir se déplacer horizontalement selon la flèche F, avec une course réduite X. A cet effet, on peut prévoir un montage du moteur 18 sur son bâti 22 par l'intermédiaire de glissières, de rails Ou de tout moyen équivalent. On prévoit, selon l'invention, une liaison rigide entre les axes respectifs du moteur 18 et de la poupée 12, de telle manière qu'aux déplacements verticaux de course Y de la poupée (et donc de la broche 10), pendant l'usinage, correspondent des déplacements horizontaux de faible course X du moteur 18. Cette liaison rigide est réalisée ici sous la forme d'une bielle, désignée dans son ensemble par la référence 24.Afin de permettre un réglage de l'entraxe moteur-poupée, la bielle est en deux parties 24, 24', dont la position relative peut être réglée à l'aide de vis telles que 26, ce qui permet de régler la tension de la courroie d'entraînement 20. According to the invention, the motor is mounted on a frame 22 so as to be able to move horizontally along the arrow F, with a reduced stroke X. For this purpose, it is possible to provide a mounting of the motor 18 on its frame 22 by the intermediate of slides, rails or any equivalent means. According to the invention, a rigid connection is provided between the respective axes of the motor 18 and of the headstock 12, so that during the vertical displacements of stroke Y of the headstock (and therefore of the spindle 10), during the machining, correspond to horizontal movements of short stroke X of the motor 18. This rigid connection is produced here in the form of a connecting rod, designated as a whole by the reference 24. In order to allow adjustment of the center distance of the motor-headstock, the connecting rod is in two parts 24, 24 ′, the relative position of which can be adjusted using screws such as 26, which makes it possible to adjust the tension of the drive belt 20.
La course minimale horizontale du moteur est obtenue lorsque sa position en hauteur est située sensiblement au milieu de la course de la broche 10. The minimum horizontal stroke of the motor is obtained when its height position is situated substantially in the middle of the stroke of spindle 10.
Le dispositif selon l'invention apporte notamment les avantages suivants - la tension est absorbée par la bielle, au lieu de entre par la broche, dans
le cas d'un montage du moteur directement sur la poupée de la broche - possibilité d'augmenter la longueur de la bielle, étant donné que, plus cette
bielle est longue, moins il y a d'efforts sur la broche, le produit de ces
deux variables (longueur de bielle x effort sur la broche) étant constant et
égal au couple du moteur.The device according to the invention provides in particular the following advantages - the voltage is absorbed by the connecting rod, instead of entering through the spindle, in
in the case of mounting the motor directly on the spindle headstock - possibility of increasing the length of the connecting rod, since, the more this
connecting rod is long, the less effort there is on the spindle, the product of these
two variables (rod length x force on the spindle) being constant and
equal to the engine torque.
Il demeure bien entendu que cette invention n'est pas limitée à l'exemple de réalisation décrit et représenté, mais qu'elle en englobe toutes les variantes. It remains to be understood that this invention is not limited to the embodiment described and shown, but that it encompasses all variants thereof.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8503541A FR2578465A1 (en) | 1985-03-11 | 1985-03-11 | Spindle control system for machine tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8503541A FR2578465A1 (en) | 1985-03-11 | 1985-03-11 | Spindle control system for machine tools |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2578465A1 true FR2578465A1 (en) | 1986-09-12 |
Family
ID=9317064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8503541A Pending FR2578465A1 (en) | 1985-03-11 | 1985-03-11 | Spindle control system for machine tools |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2578465A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
CN108500706A (en) * | 2018-04-08 | 2018-09-07 | 沈阳广达科技发展有限公司 | A kind of bilateral V shape precision five-axis head power plant |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH146626A (en) * | 1930-02-06 | 1931-04-30 | Genevoise Instr Physique | Device for controlling the spindle of a precision drill. |
DE2261656A1 (en) * | 1971-12-21 | 1973-07-05 | Werkzeugmasch Okt Veb | BELT DRIVE FOR A GRINDING SPINDLE ON A GEAR FLANGE GRINDING MACHINE WORKING IN THE PARTIAL ROLLING PROCESS |
DE2706178A1 (en) * | 1976-03-10 | 1977-09-22 | Okuma Machinery Works Ltd | NUMERICALLY CONTROLLED LATHE |
DE2723916A1 (en) * | 1976-05-28 | 1977-12-01 | Hitachi Ltd | MACHINE TOOL |
-
1985
- 1985-03-11 FR FR8503541A patent/FR2578465A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH146626A (en) * | 1930-02-06 | 1931-04-30 | Genevoise Instr Physique | Device for controlling the spindle of a precision drill. |
DE2261656A1 (en) * | 1971-12-21 | 1973-07-05 | Werkzeugmasch Okt Veb | BELT DRIVE FOR A GRINDING SPINDLE ON A GEAR FLANGE GRINDING MACHINE WORKING IN THE PARTIAL ROLLING PROCESS |
DE2706178A1 (en) * | 1976-03-10 | 1977-09-22 | Okuma Machinery Works Ltd | NUMERICALLY CONTROLLED LATHE |
DE2723916A1 (en) * | 1976-05-28 | 1977-12-01 | Hitachi Ltd | MACHINE TOOL |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
CN108500706A (en) * | 2018-04-08 | 2018-09-07 | 沈阳广达科技发展有限公司 | A kind of bilateral V shape precision five-axis head power plant |
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