FR2673874A1 - Machine tool with a gantry for machining components of large dimensions - Google Patents

Machine tool with a gantry for machining components of large dimensions Download PDF

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Publication number
FR2673874A1
FR2673874A1 FR9102920A FR9102920A FR2673874A1 FR 2673874 A1 FR2673874 A1 FR 2673874A1 FR 9102920 A FR9102920 A FR 9102920A FR 9102920 A FR9102920 A FR 9102920A FR 2673874 A1 FR2673874 A1 FR 2673874A1
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France
Prior art keywords
gantry
machine tool
movable upright
slides
upright
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Granted
Application number
FR9102920A
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French (fr)
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FR2673874B1 (en
Inventor
Line Henri
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Helis SA
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Helis SA
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Publication date
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Priority to FR9102920A priority Critical patent/FR2673874B1/en
Publication of FR2673874A1 publication Critical patent/FR2673874A1/en
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Publication of FR2673874B1 publication Critical patent/FR2673874B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/012—Portals

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)

Abstract

The present invention relates to a machine tool with a gantry for machining components of large dimensions comprising a bed (table) (2) and a gantry including a crossmember (3) carried by two uprights (1, 1a) located on either side of the bed (2). A movable upright (13) is mounted slidingly on the crossmember (3) and bears a vertical sliding carriage (17) equipped with a slide (runner) (18). The movable upright (13) slides along two slideways (8) located on the front face of the crossmember (3) and of an additional slideway located at the rear.

Description

MACHINE-OUTIL A PORTIQUE POUR L'USINAGE
DE PIECES DE GRANDES DIMENSIONS
La présente invention a pour objet une machine-outil à portique pour l'usinage de pièces de grandes dimensions.GANTRY MACHINE TOOL FOR MACHINING
LARGE-SIZED PARTS
The present invention relates to a gantry machine tool for machining large parts.

Les machines à portique connues réalisées actuellement sont de divers types représentés sur les figures 1 et 2. The known gantry machines currently produced are of various types shown in FIGS. 1 and 2.

Sur la figure 1, on a représenté une fraiseuse à portique mobile comportant deux montants verticaux 1, la, disposés de part et d'autre d'une table fixe 2 de grande dimension sur laquelle est posée la pièce à usiner. Les montants 1 et la supportent une traverse supérieure 3 située au-dessus de la table 2. Les montants 1 et la présentent chacun sur leurs faces avant des glissières verticales 5 le long desquelles est monté coulissant un chariot 6 équipé d'une tête d'usinage 7 coulissant à l'horizontale. Les courses de plongée maximum des têtes coulissantes définissent les zones d'usinage. La traverse 3 peut également présenter des glissières le long desquelles est monté coulissant un chariot supplémentaire 9 équipé d'une tête d'usinage 10 coulissant à la verticale. Pour usiner certaines pièces, il faut donc réaliser plusieurs posages.Le problème est le même pour les fraiseuses à portique fixe et à table mobile. In Figure 1, there is shown a mobile gantry milling machine comprising two vertical uprights 1, la, arranged on either side of a large fixed table 2 on which is placed the workpiece. The uprights 1 and the support support an upper cross member 3 located above the table 2. The uprights 1 and each have on their front faces vertical slides 5 along which is slidably mounted a carriage 6 equipped with a head machining 7 sliding horizontally. The maximum diving strokes of the sliding heads define the machining zones. The cross-member 3 may also have slides along which a supplementary carriage 9 is slidably mounted fitted with a machining head 10 sliding vertically. To machine certain parts, it is therefore necessary to carry out several layings.The problem is the same for milling machines with fixed gantry and movable table.

Sur la figure 2, on a représenté un tour vertical à portique fixe comportant deux montants verticaux 1, la, disposés de part et d'autre d'une table 2 mobile en rotation. Les montants 1 et la supportent une traverse supérieure 3 située au-dessus de la table 2. Le montant 1 et la traverse 3 sont munis de glissières 5 et 8 le long desquelles coulissent des chariots 6 et 9 équipés de coulants porte-outils 7 et 10. La zone hachurée 11 est inaccessible à l'usinage. In Figure 2, there is shown a vertical tower with a fixed gantry comprising two vertical uprights 1, la, arranged on either side of a table 2 movable in rotation. The uprights 1 and the support carry an upper cross member 3 located above the table 2. The upright 1 and the cross member 3 are provided with slides 5 and 8 along which slide the carriages 6 and 9 equipped with sliding tool holders 7 and 10. The hatched area 11 is inaccessible to machining.

Dans les machines connues, il est impossible d'éliminer les zones inaccessibles à 11 usinage, du fait que la table doit être large pour pouvoir accepter des pièces de grandes dimensions, et du fait qu'une augmentation de la course de plongée des têtes coulissantes entraînerait des déformations de flexion nuisibles à la précision de l'usinage. In known machines, it is impossible to eliminate the zones inaccessible to machining, because the table must be wide in order to be able to accept large parts, and because an increase in the plunge stroke of the sliding heads would cause bending deformations detrimental to the precision of the machining.

Il en résulte que ces machines volumineuses sont inadaptées pour l'usinage de certaines pièces. As a result, these bulky machines are unsuitable for machining certain parts.

Le but de la présente invention est de remédier à ces inconvénients et de proposer une machine perfectionnée dans laquelle toutes les zones sont accessibles à l'usinage. The object of the present invention is to remedy these drawbacks and to propose an improved machine in which all the zones are accessible for machining.

L'invention concerne donc un machine-outil à portique, pour l'usinage de pièces de grandes dimensions, comprenant, d'une part, une table inférieure, et, d'autre part, un portique comportant une traverse supérieure et deux montants disposés de part et d'autre de la table, sur lequel est monté au moins un chariot équipé d'un organe porte-outil et susceptible de se déplacer verticalement, ladite table et ledit portique étant susceptibles de se déplacer l'un par rapport à l'autre, cette machine étant caractérisée par le fait que la machine-outil comporte en outre, au moins, un montant supplémentaire mobile, monté coulissant, dans une direction transversale, le long des glissières dont est munie la traverse, ledit montant mobile s'étendant vers le plan supérieur de ladite table et par le fait que le chariot est monté coulissant dans la direction verticale, le long de glissières dont est muni ledit montant mobile. The invention therefore relates to a gantry machine tool for machining large parts, comprising, on the one hand, a lower table, and, on the other hand, a gantry comprising an upper cross member and two uprights arranged on either side of the table, on which is mounted at least one carriage equipped with a tool-carrying member and capable of moving vertically, said table and said gantry being capable of moving one relative to the 'other, this machine being characterized in that the machine tool further comprises, at least, an additional movable upright, slidably mounted, in a transverse direction, along the slides which is provided with the crosspiece, said movable upright s' extending towards the upper plane of said table and by the fact that the carriage is mounted sliding in the vertical direction, along slides with which said movable upright is provided.

De manière à assurer la rigidité du montant mobile, la traverse comporte avantageusement sur sa face avant des glissières pour le guidage dudit montant mobile, et comporte de plus sur sa face arrière une glissière supplémentaire destinée au guidage d'au moins une console d'appui prévue à l'arrière dudit montant mobile. In order to ensure the rigidity of the movable upright, the cross member advantageously comprises on its front face slides for guiding said movable upright, and further comprises on its rear face an additional slide intended for guiding at least one support console provided at the rear of said movable upright.

Avantageusement, ledit montant mobile présente à sa partie supérieure au moins un renfort latéral muni de moyens de guidage coopérant avec les glissières situées sur la face avant de ladite traverse. Advantageously, said movable upright has at its upper part at least one lateral reinforcement provided with guide means cooperating with the slides located on the front face of said crosspiece.

Cette disposition associe un guidage étroit et très long sur la face avant de la traverse du même type que celui d'un chariot porte-tête, à un guidage placé à l'arrière de la traverse, ce qui donne des performances de précision d'usinage remarquables.  This arrangement combines a narrow and very long guide on the front face of the crossmember of the same type as that of a head carriage, with a guide placed at the rear of the crossmember, which gives precision performance of remarkable machining.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description suivante de plusieurs modes de réalisation et en référant aux dessins annexés sur lesquels
les figures 1 et 2 sont des vues en élévation de machines-outils à portique de type connu,
la figure 3 est une vue en élévation de face d'une fraiseuse à portique mobile selon l'invention comportant deux têtes d'usinage,
la figure 4 est une vue en élévation latérale de la même fraiseuse prise selon la ligne IV-IV de la figure 3,
la figure 5 est une coupe horizontale selon la ligne V-V de la figure 3,
la figure 6 est une vue en élévation de face d'une fraiseuse à portique mobile muni d'un seul montant mobile et d'une tête d'usinage à deux positions,
la figure 7 est une coupe horizontale selon la ligne Vil-Vil de la figure 6,
la figure 8 est une vue en élévation de face d'un tour vertical.Other characteristics and advantages of the invention will be better understood on reading the following description of several embodiments and with reference to the accompanying drawings in which
FIGS. 1 and 2 are elevation views of portal-type machine tools of known type,
FIG. 3 is a front elevation view of a mobile gantry milling machine according to the invention comprising two machining heads,
FIG. 4 is a side elevation view of the same milling machine taken along line IV-IV of FIG. 3,
FIG. 5 is a horizontal section along the line VV in FIG. 3,
FIG. 6 is a front elevation view of a mobile portal milling machine provided with a single mobile upright and a machining head with two positions,
FIG. 7 is a horizontal section along the line Vil-Vil of FIG. 6,
Figure 8 is a front elevational view of a vertical lathe.

Les figures 3 à 8 représentent plusieurs modes de réalisation de machines-outils selon l'invention dans lesquels les éléments semblables portent les mêmes références par souci de clarté. Figures 3 to 8 show several embodiments of machine tools according to the invention in which similar elements have the same references for the sake of clarity.

La machine-outil de l'invention, qui peut être une fraiseuse à portique mobile ou fixe ou un tour vertical à deux montants, comporte deux montants verticaux 1, la, disposés de part et d'autre d'une table 2 et supportant une traverse supérieure 3 située au-dessus de la table 2. La traverse supérieure 3 présente sur sa face avant deux glissières horizontales 8 et sur sa face arrière une glissière supplémentaire 12 parallèle aux glissières 8. The machine tool of the invention, which can be a mobile or fixed gantry milling machine or a vertical tower with two uprights, comprises two vertical uprights 1, la, arranged on either side of a table 2 and supporting a upper cross-member 3 located above the table 2. The upper cross-member 3 has on its front face two horizontal slides 8 and on its rear face an additional slide 12 parallel to the slides 8.

Selon ltinvantion, au moins un montant mobile 13 est monté coulissant le long des glissières 8 et 9. Ce montant mobile 13 s'étend vers le bas et son extrémité inférieure 14 se trouve au voisinage du plan défini par la face supérieure 15 de la table 2.  According to the invention, at least one movable upright 13 is slidably mounted along the runners 8 and 9. This movable upright 13 extends downwards and its lower end 14 is located in the vicinity of the plane defined by the upper face 15 of the table 2.

Il comporte sur sa face avant des glissières verticales 16 sur lesquelles se déplace un chariot 17 portant une tête coulissante ou coulant 18 se déplaçant suivant un axe horizontal parallèle à la traverse 3 et munie à son extrémité d'une tête porte-outil.It has on its front face vertical slides 16 on which moves a carriage 17 carrying a sliding or sliding head 18 moving along a horizontal axis parallel to the cross member 3 and provided at its end with a tool holder head.

Le montant mobile 13 de section sensiblement rectangulaire présente à sa partie supérieure des moyens de guidage destinés à coopérer, de manière connue, avec les glissières 8. Il commporte, de plus, au moins une console d'appui 20 s'étendant sous la traverse 3 et vers l'arrière de celle-ci, cette console d'appui 20 étant munie à son extrémité de moyens de guidage 21 coopérant avec la glissière 12. Il présente, de plus, dans sa partie supérieure au moins un renfort latéral 22 disposé devant la traverse 3 et comportant également des moyens de guidage coopérant avec les glissières 8. The movable upright 13 of substantially rectangular section has at its upper part guide means intended to cooperate, in known manner, with the slides 8. It also includes at least one support console 20 extending under the crossmember 3 and towards the rear thereof, this support console 20 being provided at its end with guide means 21 cooperating with the slide 12. It further has, in its upper part at least one lateral reinforcement 22 disposed in front of the cross-member 3 and also comprising guide means cooperating with the slides 8.

Les figures 3, 4 et 5 montrent une fraiseuse à portique mobile et à table fixe équipée de deux montants mobiles 13 présentant chacun un renfort latéral 22. Les deux têtes porte-outils sont disposées en vis-à-vis et sont destinées chacune à l'usinage d'une face de la pièce à usiner. Figures 3, 4 and 5 show a milling machine with mobile gantry and a fixed table equipped with two mobile uprights 13 each having a lateral reinforcement 22. The two tool-holder heads are arranged opposite and are each intended for the machining of one side of the workpiece.

Les figures 6 et 7 montrent une fraiseuse à portique mobile et à table fixe équipée d'un seul montant mobile 13 comportant deux renforts latéraux 22 symétriques. La tête coulissante 18 peut prendre deux positions à 1800 permettant ainsi de travailler des deux côtés de la pièce à usiner. FIGS. 6 and 7 show a milling machine with a mobile gantry and a fixed table equipped with a single mobile upright 13 comprising two symmetrical lateral reinforcements 22. The sliding head 18 can take two positions at 1800, thus making it possible to work on both sides of the workpiece.

La figure 8 représente un tour vertical comportant un portique fixe et une table 2 pouvant tourner autour d'un axe vertical 23. Le montant mobile 13 comporte une console arrière 20 non représentée sur le dessin et un renfort latéral 22 disposé du côté opposé à la tête porte-outil.  FIG. 8 represents a vertical tower comprising a fixed gantry and a table 2 which can rotate around a vertical axis 23. The movable upright 13 comprises a rear console 20 not shown in the drawing and a lateral reinforcement 22 disposed on the side opposite to the tool holder head.

Claims (4)

REVENDICATIONS 1. Machine-outil à portique, pour l'usinage de pièces de grandes dimensions, comprenant, d'une part, une table inférieure (2) et, d'autre part, un portique comportant une traverse supérieure (3) et deux montants (1, la) disposés de part et d'autre de ladite table (2), sur lequel est monté au moins un chariot (6) équipé d'un organe porte-outil (7) et susceptible de se déplacer verticalement, ladite table (2) et ledit portique étant susceptibles de se déplacer l'un par rapport à l'autre, 1. Gantry machine tool, for machining large parts, comprising, on the one hand, a lower table (2) and, on the other hand, a gantry comprising an upper crosspiece (3) and two uprights (1, la) arranged on either side of said table (2), on which is mounted at least one carriage (6) equipped with a tool-carrying member (7) and capable of moving vertically, said table (2) and said gantry being capable of moving relative to one another, cette machine-outil étant caractérisée en ce qu'elle comporte en outre au moins un montant supplémentaire mobile (13), monté coulissant, dans une direction transversale, le long de glissières (8) dont est munie ladite traverse (3), ledit montant mobile (13) s'étendant vers le plan supérieur (15) de ladite table, this machine tool being characterized in that it further comprises at least one additional movable upright (13), slidably mounted, in a transverse direction, along slides (8) which is provided with said crosspiece (3), said upright mobile (13) extending towards the upper plane (15) of said table, et en ce que le chariot (6) est monté coulissant, dans la direction verticale, le long de glissières (16) dont est muni ledit montant mobile (13). and in that the carriage (6) is slidably mounted, in the vertical direction, along slides (16) with which said movable upright (13) is provided. 2. Machine-outil selon la revendication 1, caractérisée en ce que ladite traverse (3) comporte sur sa face avant des glissières (8) pour le guidage dudit montant mobile (13) et comporte de plus sur sa face arrière une glissière supplémentaire (12) destinée au guidage d'au moins une console d'appui (20) prévue à l'arrière dudit montant mobile (13). 2. Machine tool according to claim 1, characterized in that said crosspiece (3) has on its front face slides (8) for guiding said movable upright (13) and further comprises on its rear face an additional slide ( 12) intended for guiding at least one support console (20) provided at the rear of said movable upright (13). 3. Machine-outil selon l'une quelconque des revendications 1 et 2, caractérisée en ce que ledit montant mobile (13) présente à sa partie supérieure au moins un renfort latéral (22) muni de moyens de guidage coopérant avec les glissières (8) situées sur la face avant de ladite traverse (3). 3. Machine tool according to any one of claims 1 and 2, characterized in that said movable upright (13) has at its upper part at least one lateral reinforcement (22) provided with guide means cooperating with the slides (8 ) located on the front face of said crosspiece (3). 4. Machine-outil selon la revendication 3, caractérisée en ce que ledit montant mobile (13) présente deux renforts latéraux (22).  4. Machine tool according to claim 3, characterized in that said movable upright (13) has two lateral reinforcements (22).
FR9102920A 1991-03-11 1991-03-11 GANTRY TOOL MACHINE FOR MACHINING PARTS OF LARGE DIMENSIONS. Expired - Fee Related FR2673874B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9102920A FR2673874B1 (en) 1991-03-11 1991-03-11 GANTRY TOOL MACHINE FOR MACHINING PARTS OF LARGE DIMENSIONS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102920A FR2673874B1 (en) 1991-03-11 1991-03-11 GANTRY TOOL MACHINE FOR MACHINING PARTS OF LARGE DIMENSIONS.

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FR2673874A1 true FR2673874A1 (en) 1992-09-18
FR2673874B1 FR2673874B1 (en) 1995-06-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743015A1 (en) * 1995-12-29 1997-07-04 Helis Sa Machine tool for shaping large workpieces
WO1999012698A2 (en) * 1997-09-10 1999-03-18 Geodetic Technology International Holdings N.V. Improvements relating to airframe manufacturing
EP4116031A1 (en) * 2021-07-07 2023-01-11 Siemens Gamesa Renewable Energy A/S Gantry system for manufacturing a wind turbine blade and method for manufacturing a wind turbine blade

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1295948A (en) * 1961-04-18 1962-06-15 Derefa Etablissement Pour Le D Multiple combination machine, for machining very large parts, having the general shape of revolution
DE1926988A1 (en) * 1968-12-27 1970-07-09 Innocenti Soc Generale Milling drill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1295948A (en) * 1961-04-18 1962-06-15 Derefa Etablissement Pour Le D Multiple combination machine, for machining very large parts, having the general shape of revolution
DE1926988A1 (en) * 1968-12-27 1970-07-09 Innocenti Soc Generale Milling drill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743015A1 (en) * 1995-12-29 1997-07-04 Helis Sa Machine tool for shaping large workpieces
US5839323A (en) * 1995-12-29 1998-11-24 Helis S.A. Moving gantry machine having uprights movable relative to each other
DE19654712B4 (en) * 1995-12-29 2006-01-12 Helis S.A. Program-controlled machine for multi-axis workpiece machining
WO1999012698A2 (en) * 1997-09-10 1999-03-18 Geodetic Technology International Holdings N.V. Improvements relating to airframe manufacturing
WO1999012698A3 (en) * 1997-09-10 2002-02-14 Geodetic Technology Internat H Improvements relating to airframe manufacturing
EP4116031A1 (en) * 2021-07-07 2023-01-11 Siemens Gamesa Renewable Energy A/S Gantry system for manufacturing a wind turbine blade and method for manufacturing a wind turbine blade
WO2023280815A1 (en) * 2021-07-07 2023-01-12 Siemens Gamesa Renewable Energy A/S Gantry system for manufacturing a wind turbine blade and method for manufacturing a wind turbine blade

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