FR2474374A1 - Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller - Google Patents

Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller Download PDF

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Publication number
FR2474374A1
FR2474374A1 FR8002400A FR8002400A FR2474374A1 FR 2474374 A1 FR2474374 A1 FR 2474374A1 FR 8002400 A FR8002400 A FR 8002400A FR 8002400 A FR8002400 A FR 8002400A FR 2474374 A1 FR2474374 A1 FR 2474374A1
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France
Prior art keywords
roller
drive
rollers
idler roller
workpiece
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.)
Granted
Application number
FR8002400A
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French (fr)
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FR2474374B1 (en
Inventor
Jack Fernand Delehonte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles Citroen SA
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Automobiles Citroen 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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR8002400A priority Critical patent/FR2474374A1/en
Publication of FR2474374A1 publication Critical patent/FR2474374A1/en
Application granted granted Critical
Publication of FR2474374B1 publication Critical patent/FR2474374B1/fr
Granted 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
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/16—Loading work on to conveyors; Arranging work on conveyors, e.g. varying spacing between individual workpieces
    • 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
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/05—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways
    • B23Q7/055—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways some of the rollers being driven
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/04—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B5/043—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

The roll train system for holding long material during shaping operations has a pair of rollers (7,12) at the input, following the roller conveyor advancing the workpiece. This is followed by a set of e.g. three shaping tools, then an output section of the same design as the input rollers, then final support rollers. These input and output sets each consist of an upper driving roller (12) connected by universal joints (17) with a drive motor (19), and an idler roller (7) underneath. The idler roller has its spindle (8) supported by the sides of a cage (9) which can rise and fall inside a fixed frame (10). The spindle (13) of the driving roller is supported at each end by an arm (14) with a piston (15) on top, moving inside a cylinder (16) mounted on top of the moving cage. A coding device (20) is mounted on the end of the spindle of the idler roller.

Description

Machine à usiner les pièces de grande longueur,
telles que des longerons.Machine to machine very long parts,
such as stringers.

La présente invention concerne les machines à usiner des pièces de grande longueur, telles que des longerons, qui comportent un dispositif de déplacement programmé des longerons avec arrêts de ceux-ci à différents postes d'usinage. The present invention relates to machines for machining very long workpieces, such as beams, which include a device for programmed displacement of the beams with stops thereof at different machining stations.

D'une manière générale, ces machines comportent un ou plusieurs trains moteurs, des unités d'usinage et un ensemble de rouleaux porteurs et éventuellement des rouleaux de guidage longitudinal, le ou chaque train moteur comprenant un rouleau fou, un rouleau moteur et des moyens pour déplacer les deux rouleaux l'un vers l'autre de façon à pincer la pièce à usiner entre les rouleaux et à entraîner cette pièce, le rouleau fou du train moteur ou de l'un des trains moteurs étant relié à un codeur d'avancement. In general, these machines comprise one or more drive trains, machining units and a set of carrier rollers and optionally longitudinal guide rollers, the or each drive train comprising an idler roller, a drive roller and means to move the two rollers towards each other so as to pinch the workpiece between the rollers and to drive this workpiece, the idler roller of the drive train or one of the drive trains being connected to an encoder advancement.

Le rouleau fou, qui est de préférence le rouleau inférieur, entraîne le codeur qui vérifie le déplacement du longeron par rapport au déplacement programmé. The idler roller, which is preferably the lower roller, drives the encoder which checks the displacement of the beam in relation to the programmed displacement.

Mais il se peut que la pièce à usiner présente des défauts de linéarité verticale de sorte qu a certains moments elle n'est plus au contact du rouleau fou du train moteur et que le codeur n'est plus entraîné. Il en résulte que les usinages sont formés dans la pièce à des endroits qui ne sont pas rigoureusement les endroits désirés. However, the workpiece may have vertical linearity faults so that at certain times it is no longer in contact with the idler roller on the power train and the encoder is no longer driven. As a result, the machining operations are formed in the part at locations which are not strictly the desired locations.

La présente invention a pour objet un perfectionnement apporté aux machines à usiner les pièces allongées, dans le but de remédier aux défauts qui viennent d'être signalés. The present invention relates to an improvement made to machines for machining elongated parts, with the aim of remedying the faults which have just been reported.

Selon la présente invention, le rouleau fou, qui est de préférence le rouleau inférieur, est monté à rotation dans un élément de support qui est lui-même monté flottant verticalement par rapport au bâti de la machine, et les paliers du rouleau moteur sont mobiles verticalement par rapport à cet élément de support et reliés à ceux-ci par un ou plusieurs vérins de pinçage. According to the present invention, the idler roller, which is preferably the lower roller, is rotatably mounted in a support element which is itself mounted floating vertically relative to the machine frame, and the bearings of the drive roller are movable vertically with respect to this support element and connected to these by one or more clamping cylinders.

Lorsqu'on admet la pression dans le ou les vérins de pinçage, le rouleau moteur se déplace vers le rouleau fou et vient pincer la pièce à usiner. Si cette pièce présente un défaut de linéarité verticale et ne repose plus sur le rouleau fou, l'élément de support se déplace verticalement étant donné que le rouleau moteur reste en appui sur la pièce, et entraîne le rouleau fou de sorte que celui-ci vient à nouveau au contact de la pièce à usiner. When the pressure in the clamping cylinder (s) is admitted, the drive roller moves towards the idler roller and comes to pinch the workpiece. If this part has a defect in vertical linearity and no longer rests on the idler roller, the support element moves vertically since the drive roller remains in contact with the part, and drives the idler roller so that it again comes into contact with the workpiece.

Dans la pratique, ce déplacement est instantané de sorte que le rouleau fou et, par suite, le codeur restent entraînés par la pièce et que les usinages se produisent rigoureusement aux endroits désirés. En outre, l'effort de pinçage exercé par les rouleaux sur la pièce reste constant. In practice, this movement is instantaneous so that the idler roller and, consequently, the encoder remain driven by the workpiece and that the machining takes place rigorously at the desired locations. In addition, the clamping force exerted by the rollers on the part remains constant.

Dans un mode de réalisation avantageux de l'invention, la machine comporte deux trains moteurs entre lesquels sont disposées les unités d'usinage et qui sont écartés l'un de l'autre d'une distance au plus égale à la longueur de la pièce à usiner, chacun des rouleaux fous étant relié à un codeur d'avancement. L'un des codeurs au moins est alors entraîné quelle que soit la position de la pièce dans la machine. In an advantageous embodiment of the invention, the machine comprises two drive trains between which the machining units are arranged and which are spaced from each other by a distance at most equal to the length of the part to be machined, each of the idler rollers being connected to a progress encoder. At least one of the encoders is then driven regardless of the position of the workpiece in the machine.

On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation d'une machine à usiner les longerons selon l'invention, avec référence aux dessins annexés dans lesquels
La Figure 1 représente schématiquement l'ensemble de la machine,
La Figure 2 est une vue en coupe schématique de l'un des trains moteurs,
La Figure 3 représente schématiquement les rouleaux d'appui latéraux,
La Figure 4 est une vue en élévation d'un train d'entraî- nement,
La Figure 5 en est une vue latérale;
La Figure 6 en est une vue en plan.We have described below, by way of nonlimiting example, an embodiment of a machine for machining the beams according to the invention, with reference to the accompanying drawings in which
Figure 1 shows schematically the whole machine,
FIG. 2 is a schematic sectional view of one of the drive trains,
FIG. 3 schematically represents the lateral support rollers,
FIG. 4 is an elevation view of a drive train,
Figure 5 is a side view;
Figure 6 is a plan view.

Telle qu'elle est représentée schématiquement aux Figures 1 à 3, la machine à usiner les longerons comprend un train d'entrée 1 en amont duquel se trouvent des rouleaux de support 2, une série d'unités d'usinage 3a, 3b et 3c, et un train de sortie 4 en aval duquel se trouvent des rouleaux de support 5. La distance entre les trains d'entrée 1 et de sortie 4 est au plus égale à la longueur d'un longeron 6 à usiner de sorte que ce longeron ne quitte le train d'entrée qu'après avoir pénétré dans le train de sortie. As shown schematically in Figures 1 to 3, the machine for machining the side members comprises an input train 1 upstream of which there are support rollers 2, a series of machining units 3a, 3b and 3c , and an output train 4 downstream of which there are support rollers 5. The distance between the input 1 and output 4 trains is at most equal to the length of a beam 6 to be machined so that this beam does not leave the entry train until after entering the exit train.

Chacun des trains d'entrée et de sortie -comprend un rouleau fou 7 dont l'arbre 8 est porté par une cage 9 mobile verticalement dans un bâti fixe 10, des butées il limitant le déplacement de cette cage vers le bas. Chacun des trains comporte par ailleurs un rouleau moteur 12 dont l'arbre 13 situé au-dessus de l'arbre 8, est supporté à chacune de ses extrémités par un bras 14. Chaaun de ces bras est attelé au piston 15 d'un vérin de pinçage 16 solidaire de la cage 9. L'arbre 13 est relié par des articulations à rotule 17 à l'arbre de sortie d'un moteur d'entraînement 19 à courant continu. Un codeur 20 est monté en bout de l'arbre 8 du rouleau fou 7. Each of the input and output trains includes a idler roller 7, the shaft 8 of which is carried by a cage 9 movable vertically in a fixed frame 10, stops there limiting the movement of this cage downward. Each of the trains also comprises a drive roller 12, the shaft 13 located above the shaft 8, is supported at each of its ends by an arm 14. Each of these arms is coupled to the piston 15 of a jack. pinch 16 secured to the cage 9. The shaft 13 is connected by ball joints 17 to the output shaft of a DC drive motor 19. An encoder 20 is mounted at the end of the shaft 8 of the idler roller 7.

Entre les trains d'entrée 1, les unités d'usinage 3a, 3b et 3c et le train de sortie 4, sont prévus des rouleaux intermédiaires de support 21. A chacun de ces rouleaux est associée une paire de rouleaux pinceurs comprenant un rouleau 22a d'axe fixe et un rouleau 22b dont l'axe est porté par un bras 23 monté pivotant en 24 sur le bâti de la machine et commandé par un vérin 25. Between the input trains 1, the machining units 3a, 3b and 3c and the output train 4, intermediate support rollers 21 are provided. To each of these rollers is associated a pair of pinch rollers comprising a roller 22a with a fixed axis and a roller 22b, the axis of which is carried by an arm 23 pivotally mounted at 24 on the frame of the machine and controlled by a jack 25.

La référence 26 désigne m détecteur formant prise de référence et placé immédiatement après le train d'entrée 1.Reference 26 designates m detector forming a reference point and placed immediately after the input train 1.

En fonctionnement, un fluide sous pression est admis dans les vérins 16 et 25 et le moteur d'entraînement 19 est mis en service; les vérins 16 pressent sur le longeron 6 les rouleaux 12, la cage mobile 9 se déplaçant alors verticalement jusqu'au contact du rouleau 7 avec le longeron. Si ce dernier présente un défaut de linéarité verticale, la cage 9 se déplacera de manière à rattraper le défaut et le pincement du longeron entre les rouleaux 12 et 7 sera toujours assuré. Le rouleau 7 est donc toujours entraîné en rotation de sorte que les indications du codeur 20 sont toujours précises et exactes. Le longeron 6 n'est jamais contraint et l'effort de serrage exercé par les rouleaux 7 et 12 sur le longeron reste constant. In operation, a pressurized fluid is admitted into the jacks 16 and 25 and the drive motor 19 is put into service; the jacks 16 press on the spar 6 the rollers 12, the movable cage 9 then moving vertically until contact of the roller 7 with the spar. If the latter has a defect in vertical linearity, the cage 9 will move so as to make up for the defect and the pinching of the beam between the rollers 12 and 7 will always be ensured. The roller 7 is therefore always driven in rotation so that the indications of the encoder 20 are always precise and exact. The spar 6 is never constrained and the clamping force exerted by the rollers 7 and 12 on the spar remains constant.

Les Figures 4 à 6 montrent un mode de réalisation pratique du train d'entrée 1. L'arbre 8 du rouleau 7 est monté à rotation dans des paliers 27 portés par la cage 9. Celle-ci est montée coulissante verticalement dans le bâti 10, par l'intermédiaire de glissières 28, sa course vers le bas étant limitée par les butees 11. L'axe 13 du rouleau moteur 12 repose dans des paliers 29 qui sont montés coulissant dans la cage 9 par l'intermédiaire de glissières 30. Ces paliers 29 sont reliés par les bras 14 aux pistons des vérins 16. On retrouve également à ces figures l'arbre d'entraînement 13 du rouleau 12, qui est relié par un double joint de cardan 17 à l'arbre de sortie d'un réducteur 31; celuici est entraîné par le moteur 19 qui repose sur un support 32. Figures 4 to 6 show a practical embodiment of the input train 1. The shaft 8 of the roller 7 is rotatably mounted in bearings 27 carried by the cage 9. The latter is slidably mounted vertically in the frame 10 , by means of slides 28, its downward stroke being limited by the stops 11. The axis 13 of the drive roller 12 rests in bearings 29 which are slidably mounted in the cage 9 by means of slides 30. These bearings 29 are connected by the arms 14 to the pistons of the jacks 16. We also find in these figures the drive shaft 13 of the roller 12, which is connected by a double universal joint 17 to the output shaft of a reducer 31; this is driven by the motor 19 which rests on a support 32.

Il va de soi que la présente invention ne doit pas être considérée comme limitée au mode de réalisation décrit et repré senté, mais en couvre, au contraire, toutes les variantes. It goes without saying that the present invention should not be considered as limited to the embodiment described and shown, but on the contrary covers all variants thereof.

Claims (3)

REVENDICATIONS 1. - Machine à usiner des pièces de grande longueur, par exemple des longerons, comportant un ou plusieurs trains moteurs, des unités d'usinage et un ensemble de rouleaux porteurs et éventuellement de rouleaux de guidage longitudinal, le ou chaque train moteur comprenant un rouleau fou, un rouleau moteur et des moyens pour déplacer les deux rouleaux l'un vers l'autre de façon à pincer la pièce à usiner entre les rouleaux et à entraîner cette pièce, le rouleau fou du train moteur ou de l'un des trains moteurs étant relié à un codeur d'avancement, caractérisée en ce que le rouleau fou, qui est de préférence le rouleau inférieur, est monté à rotation dans un élément de support qui est lui-même monté flottant verticalement par rapport au bâti de la machine, et en ce que les paliers du rouleau moteur sont mobiles verticalement par rapport à cet élément de support et reliés à ceux-ci par un ou plusieurs vérins de pinçage. 1. - Machine for machining very long parts, for example beams, comprising one or more drive trains, machining units and a set of carrier rollers and optionally longitudinal guide rollers, the or each drive train comprising a idler roller, a drive roller and means for moving the two rollers towards each other so as to pinch the workpiece between the rollers and to drive this workpiece, the idler roller of the drive train or one of the undercarriages being connected to a progress encoder, characterized in that the idler roller, which is preferably the lower roller, is rotatably mounted in a support element which is itself mounted floating vertically relative to the frame of the machine, and in that the bearings of the drive roller are movable vertically with respect to this support element and connected to these by one or more clamping jacks. 2. - Machine selon la revendication 1, caractérisée en ce qu'elle comporte deux trains moteurs entre lesquels sont disposées les unités d'usinage et qui sont écartés l'un de l'autre d'une distance au plus égale à la longueur de la pièce à usiner, chacun des rouleaux fous étant relié à un codeur d'avancement. 2. - Machine according to claim 1, characterized in that it comprises two drive trains between which are arranged the machining units and which are spaced from each other by a distance at most equal to the length of the workpiece, each of the idler rollers being connected to a progress encoder. 3. - Machine selon la revendication 1 ou 2, caractérisée en ce que le rouleau moteur est relié par un double joint de cardan à son moteur d'entraînement. 3. - Machine according to claim 1 or 2, characterized in that the drive roller is connected by a double universal joint to its drive motor.
FR8002400A 1980-01-30 1980-01-30 Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller Granted FR2474374A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8002400A FR2474374A1 (en) 1980-01-30 1980-01-30 Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8002400A FR2474374A1 (en) 1980-01-30 1980-01-30 Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller

Publications (2)

Publication Number Publication Date
FR2474374A1 true FR2474374A1 (en) 1981-07-31
FR2474374B1 FR2474374B1 (en) 1984-02-24

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FR8002400A Granted FR2474374A1 (en) 1980-01-30 1980-01-30 Shaper for elongate elements e.g. longerons - has roll set at each end, each with drive roller above resiliently supported idler roller

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609898A1 (en) * 1987-01-28 1988-07-29 Commissariat Energie Atomique DEVICE FOR DRIVING AND POSITIONING A SOURCE HOLDER IN AN APPLICATOR USED IN CURIETHERAPY

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261811A (en) * 1926-04-12 1926-12-02 Sagar & Co Ltd J Improvements in or relating to feeding devices for wood-working machines
GB680825A (en) * 1948-05-19 1952-10-15 Essess Ab A device for measuring the displacement of a part of a machine for example a lathe, cylinder grinding machine, or the like machine
FR1550212A (en) * 1967-09-15 1968-12-20
DE1293715B (en) * 1959-04-10 1969-04-30 Wagner Maschf Gustav Control device for a machine for cutting off sections of equal length from gradually advanced rod-shaped material
DE1623209A1 (en) * 1967-04-13 1971-01-28 Kabel Metallwerke Ghh Length measuring device for strangular goods, especially for electrical cables, lines or wires
FR2101473A5 (en) * 1970-09-04 1972-03-31 Peddinghaus Paul Ferd
DE2742072A1 (en) * 1977-09-19 1979-03-22 Peddinghaus Rolf Elongated workpiece machining system - carries out programmed operations actuated by workpiece feed on measuring device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261811A (en) * 1926-04-12 1926-12-02 Sagar & Co Ltd J Improvements in or relating to feeding devices for wood-working machines
GB680825A (en) * 1948-05-19 1952-10-15 Essess Ab A device for measuring the displacement of a part of a machine for example a lathe, cylinder grinding machine, or the like machine
DE1293715B (en) * 1959-04-10 1969-04-30 Wagner Maschf Gustav Control device for a machine for cutting off sections of equal length from gradually advanced rod-shaped material
DE1623209A1 (en) * 1967-04-13 1971-01-28 Kabel Metallwerke Ghh Length measuring device for strangular goods, especially for electrical cables, lines or wires
FR1550212A (en) * 1967-09-15 1968-12-20
FR2101473A5 (en) * 1970-09-04 1972-03-31 Peddinghaus Paul Ferd
DE2742072A1 (en) * 1977-09-19 1979-03-22 Peddinghaus Rolf Elongated workpiece machining system - carries out programmed operations actuated by workpiece feed on measuring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609898A1 (en) * 1987-01-28 1988-07-29 Commissariat Energie Atomique DEVICE FOR DRIVING AND POSITIONING A SOURCE HOLDER IN AN APPLICATOR USED IN CURIETHERAPY
EP0278829A1 (en) * 1987-01-28 1988-08-17 Cis Bio International Device for driving and positioning a source holder in an applicator used in radioactive therapy
US4851694A (en) * 1987-01-28 1989-07-25 Campaignie ORIS Industrie Device for driving and positioning a source holder in an applicator used in radiotherapy

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Publication number Publication date
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