EP0839610A1 - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
EP0839610A1
EP0839610A1 EP96810659A EP96810659A EP0839610A1 EP 0839610 A1 EP0839610 A1 EP 0839610A1 EP 96810659 A EP96810659 A EP 96810659A EP 96810659 A EP96810659 A EP 96810659A EP 0839610 A1 EP0839610 A1 EP 0839610A1
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EP
European Patent Office
Prior art keywords
support
flange according
threaded
axis
fixed
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.)
Withdrawn
Application number
EP96810659A
Other languages
German (de)
French (fr)
Inventor
Georges Humard
Raphael Humard
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.)
Humard Automation SA
Original Assignee
Humard Automation 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 Humard Automation SA filed Critical Humard Automation SA
Priority to EP96810659A priority Critical patent/EP0839610A1/en
Publication of EP0839610A1 publication Critical patent/EP0839610A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/109—Arrangements for positively actuating jaws using screws with two screws, e.g. parallel screw clamps

Definitions

  • the present invention relates to a clamp, particularly a clamp for a machine tool.
  • flanges on which the workpiece is fixed by means of one or preferably several flanges.
  • These tables have a flat face in which one or more grooves are machined, a flat face of the part coming to bear against the flat face of the table, the part being clamped by means of said flanges against the table.
  • Each flange according to l prior art includes a body of support, generally of parallelepiped shape, elongated, one end of which is formed as a spout support clamping one side of the workpiece parallel to the flat side of the table.
  • the body of support is drilled, behind the spout d support, d an opening, preferably of oblong shape, through which passes a tie rod arranged generally perpendicular to the flat face of the table.
  • L lower end of the tie rod is shaped so that it can be inserted into a groove of the table to be held there when traction is exerted on the tie rod.
  • L upper end of the tie rod, protruding from the upper face of the body d support is threaded so that the body can be tightened support, respectively the spout support, by means of a nut, against said parallel face of the workpiece.
  • a threaded hole is generally provided, arranged parallel to the oblong opening and arranged towards the portion d rear end of body d support, either opposite to that comprising the spout support.
  • a flange can also be used for fixing a tool machining, for example a chisel.
  • the rest of the description relates more to a flange used to fix a workpiece, it being understood that it can also s act d a tool machining.
  • the workpiece For installation of a workpiece on a table, for example a horizontal table, the workpiece is all first placed and positioned on said table. Then we introduce the lower end of the tie rod in a table groove, position the tie rod so that it is retained by the groove and we just place the spout d support on the face of the part to be retained. For this it is necessary to open the flange sufficiently, place the spout d support and tighten l nut to tighten the spout support against the face of the part. So that the clamping is effective and that the body of support is parallel to the table, we then act on the rear threaded axle, or we have the necessary shims, in order to get this parallelism.
  • the purpose of invention is to provide a clamping flange whose paralleling of the clamping body is done automatically and simultaneously with the tightening operation and which therefore avoids the drawbacks mentioned for the flanges of the prior art.
  • Figure 1 there is, in known manner, a workpiece table 1, comprising in particular a surface d upper flat support 10, in which a groove 11 comprising two faces d upper lateral support 12 has been fitted.
  • a workpiece 13 is placed on the face d support 10, said part comprising a face 14, parallel to the surface d support 10 of the table, and on which the clamp 2 should come to place in order to maintain the part 13 on the table 1.
  • the clamp 2 includes a body d support 20 of essentially parallelepiped shape, the l front end includes spout support 21, the lower flat surface 21a of which is intended to come into contact with the face 14 of the workpiece 13.
  • Another part of the flange 2 consists of a fixing stud 22, intended to be installed in the groove 11, arranged essentially parallel to the body of support 20, s extending over a central portion of its length and comprising two surfaces d upper lateral supports 22a intended for s lean against the surfaces of corresponding support 12 of the groove 11 when tightening the part.
  • the flange 2 also includes a block d rear support 23, preferably but not necessarily fixed to the rear of the mounting stud 22.
  • This block of support includes a surface d support 23a coming s press on the flat face 10 of the table 1 to form a support during tightening.
  • the body of support 20 and the fixing stud 22 as well as the block d rear support 23 are joined by two threaded pins 24 and 25 in the manner described below.
  • L lower end 24a of the first threaded axis 24 is fixed in a non-movable manner in the front part of the fixing stud 22 by means known in the art, for example a transverse screw or a key shown in 22b. This axis 24 therefore forms part of the fixing stud 22.
  • a through cylindrical recess 20a is arranged through the body of support 20, slightly behind the spout 21.
  • a clamping member 26, constituted here by a socket 26a pivotally engaged in the cylindrical recess 20a comprises at its upper end a knurled ring 26b and / or a hex nut 26c which is fixed to it.
  • a toothed wheel 30, forming part of transmission means which will be described below, is fixed to the bush 26a.
  • l upper end of the threaded pin 25 is provided with a cylindrical enlargement 25a, the upper face of which is preferably curved, disposed in a corresponding blind cylindrical housing 20b arranged on the lower face of the block 20. It is thus understood that by rotating the axis 25, it is possible to adjust the height of the rear portion of the block 20, i.e. d bring it parallel to table 1.
  • the flange 2 is provided with mechanical transmission means 3 allowing that during an adjustment of the height of the front portion of the block 20, the rear portion is simultaneously and automatically adjusted to the same height.
  • the transmission means consist of the first toothed wheel 30 seen above, fixed to the socket 26a and d a set of intermediate toothed wheels 31 pivoting freely on axes fixed to the lower surface of the block 20, the last wheel 31 engaging another toothed wheel 32 fixed to the upper end of the second threaded pin 25, under the widening of support 25a.
  • FIG. 2 A second form of execution of a clamp 4 is shown in Figure 2.
  • the clamp 4 includes a body d support 40 with a spout support 41.
  • the movement transmission means 5 consist of a first toothed wheel 50, fixed to the bush 26a and d a second toothed wheel 51 fixed as above on the threaded shaft 25.
  • the means for transmitting the movement of the wheel 50 to the wheel 51 are here constituted by a roller chain 52 or d a toothed belt.
  • the block of rear support 23 has been described as being fixed to the fixing block; this can be an advantage in order to increase the rigidity of the device, however we could just as easily have two independent elements, the fixing block can then be limited to a fixing end piece fixed to the lower end of the threaded shaft 24. If there is n it is not necessary that the fixing flange be removable from the workpiece table, it is possible to directly integrate the fixing block and the block support for the latter.
  • the means of actuation of organ 26 have been described as consisting of a knurled ring associated with a hex nut, this arrangement allows have a quick tightening by hand by the knurled ring followed by firmer tightening help a key. Any other provision or means allowing actuating the socket 26a can be envisaged.
  • the fixing flange according to the invention can be designed according to n no matter what dimensions, suitable for large or small parts. It can be installed on a fixed or mobile workpiece table, the surface of which support is horizontal, vertical or inclined. It is therefore perfectly suited to n any type of machine tool, hydraulic presses being included, on which the workpiece is fixed on such a table. It can just as easily be used to fix a tool machining on a tool table, in the same way as described for the workpiece.
  • Such a fixing flange eliminates the disadvantages of flanges according to the prior art, his body d support always remaining parallel to the surface d support of the table, it is more easily and quickly put into action to clamp a part and avoids marking the part. In addition such a flange allows s free from use of wedges.
  • the means described above relative to a clamping flange can be extended to a more general clamping device, consisting for example of a plate comprising a clamping means in one place as well as several means for placing said plate in parallel, distributed in several places thereof, said paralleling means being coupled with the clamping means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The mechanism (2) consists of a thrust member (20), fixings (22), and a locking assembly (26) for one portion (21) of the thrust member against the workpiece (13). The mechanism incorporates a regulator (25) for the distance of another portion of the thrust member from the table (1), actuated by the locking mechanism so that one surface of the thrust member, e.g. the under-surface (21a) of a projection (21), is always parallel to the table. The locking assembly comprises a threaded rod (24) inside a bush (26a) with locking elements (26b,c), while the regulator has a second threaded rod with its upper end able to rotate freely in a cylindrical cavity (20b) in the thrust member while engaging with a threaded hole (23b) in another component (23) of the fastening mechanism.

Description

La présente invention concerne une bride de serrage, particulièrement une bride de serrage destinée à une machine-outil.The present invention relates to a clamp, particularly a clamp for a machine tool.

De nombreuses machines-outils, comme par exemple certaines fraiseuses, comportent une table porte-pièce sur laquelle la pièce à usiner est fixée au moyen de une ou de préférence plusieurs brides. Ces tables comportent une face plane dans laquelle une ou plusieurs rainures sont usinées, une face plane de la pièce venant en appui contre la face plane de la table, la pièce étant serrée au moyen desdites brides contre la table. Chaque bride selon l

Figure imgb0001
art antérieur comprend un corps d
Figure imgb0001
appui, généralement de forme parallélipipédique, allongé, dont une extrémité est formée en bec d
Figure imgb0001
appui venant serrer une face de la pièce à usiner parallèle à la face plane de la table. Le corps d
Figure imgb0001
appui est percé, en arrière du bec d
Figure imgb0001
appui, d
Figure imgb0001
une ouverture, de préférence de forme oblongue, dans laquelle passe un tirant disposé généralement perpendiculairement à la face plane de la table. L
Figure imgb0001
extrémité inférieure du tirant est formée de manière à pouvoir être introduite dans une rainure de la table pour y être maintenue lorsqu
Figure imgb0001
on exerce une traction sur le tirant. L
Figure imgb0001
extrémité supérieure du tirant, dépassant de la face supérieure du corps d
Figure imgb0001
appui est filetée de manière à pouvoir serrer le corps d
Figure imgb0001
appui, respectivement le bec d
Figure imgb0001
appui, au moyen d
Figure imgb0001
un écrou, contre ladite face parallèle de la pièce à usiner. Afin d
Figure imgb0001
assurer un serrage efficace, il est nécessaire que le corps d
Figure imgb0001
appui soit lui aussi le plus parallèle possible à la table; pour ceci, on prévoit généralement un trou fileté, disposé parallèlement à l
Figure imgb0001
ouverture oblongue et disposé vers la portion d
Figure imgb0001
extrémité arrière du corps d
Figure imgb0001
appui, soit celle opposée à celle comprenant le bec d
Figure imgb0001
appui. Un axe fileté, dont l
Figure imgb0001
extrémité inférieure comprend un élargissement servant de surface d
Figure imgb0001
appui contre la table, passe à travers ledit trou fileté. Selon d
Figure imgb0001
autres formes d
Figure imgb0001
exécution cette dernière portion de réglage de parallélisme est remplacée par des cales à disposer entre la table et la portion arrière de la surface inférieure du corps d
Figure imgb0001
appui.Many machine tools, such as certain milling machines, include a workpiece table on which the workpiece is fixed by means of one or preferably several flanges. These tables have a flat face in which one or more grooves are machined, a flat face of the part coming to bear against the flat face of the table, the part being clamped by means of said flanges against the table. Each flange according to l
Figure imgb0001
prior art includes a body of
Figure imgb0001
support, generally of parallelepiped shape, elongated, one end of which is formed as a spout
Figure imgb0001
support clamping one side of the workpiece parallel to the flat side of the table. The body of
Figure imgb0001
support is drilled, behind the spout d
Figure imgb0001
support, d
Figure imgb0001
an opening, preferably of oblong shape, through which passes a tie rod arranged generally perpendicular to the flat face of the table. L
Figure imgb0001
lower end of the tie rod is shaped so that it can be inserted into a groove of the table to be held there when
Figure imgb0001
traction is exerted on the tie rod. L
Figure imgb0001
upper end of the tie rod, protruding from the upper face of the body d
Figure imgb0001
support is threaded so that the body can be tightened
Figure imgb0001
support, respectively the spout
Figure imgb0001
support, by means of
Figure imgb0001
a nut, against said parallel face of the workpiece. For
Figure imgb0001
ensure effective clamping, it is necessary that the body d
Figure imgb0001
support also be as parallel as possible to the table; for this, a threaded hole is generally provided, arranged parallel to the
Figure imgb0001
oblong opening and arranged towards the portion d
Figure imgb0001
rear end of body d
Figure imgb0001
support, either opposite to that comprising the spout
Figure imgb0001
support. A threaded axis, of which l
Figure imgb0001
lower end includes a widening serving as a surface d
Figure imgb0001
support against the table, passes through said threaded hole. According to d
Figure imgb0001
other forms of
Figure imgb0001
execution this last portion of parallelism adjustment is replaced by shims to be placed between the table and the rear portion of the lower surface of the body
Figure imgb0001
support.

Sur certaines des machines-outils envisagées plus haut ainsi que sur d

Figure imgb0001
autres, une telle bride peut aussi servir à la fixation d
Figure imgb0001
un outil d
Figure imgb0001
usinage, par exemple un burin. La suite de la description concerne plutôt une bride utilisée pour fixer une pièce à usiner, étant entendu qu
Figure imgb0001
il peut aussi s
Figure imgb0001
agir d
Figure imgb0001
un outil d
Figure imgb0001
usinage.On some of the machine tools considered above as well as on
Figure imgb0001
others, such a flange can also be used for fixing
Figure imgb0001
a tool
Figure imgb0001
machining, for example a chisel. The rest of the description relates more to a flange used to fix a workpiece, it being understood that
Figure imgb0001
it can also s
Figure imgb0001
act d
Figure imgb0001
a tool
Figure imgb0001
machining.

Pour l

Figure imgb0001
installation d
Figure imgb0001
une pièce à usiner sur une table, par exemple une table horizontale, la pièce est tout d
Figure imgb0001
abord placée et positionnée sur ladite table. Ensuite, on introduit l
Figure imgb0001
extrémité inférieure du tirant dans une rainure de la table, on positionne le tirant de manière à ce qu
Figure imgb0001
il soit retenu par la rainure et on vient placer le bec d
Figure imgb0001
appui sur la face de la pièce à retenir. Pour ceci il est nécessaire d
Figure imgb0001
ouvrir suffisamment la bride, de placer le bec d
Figure imgb0001
appui et de resserrer l
Figure imgb0001
écrou afin de serrer la bec d
Figure imgb0001
appui contre la face de la pièce. Pour que le serrage soit efficace et que le corps d
Figure imgb0001
appui soit parallèle à la table, on agit ensuite sur l
Figure imgb0001
axe fileté arrière, ou on dispose les cales nécessaires, afin d
Figure imgb0001
obtenir ce parallélisme. L
Figure imgb0001
opération est répétée pour les autres brides de fixation de la pièce. De manière habituelle, des cales peuvent être disposées entre la face de la pièce à serrer et le bec d
Figure imgb0001
appui, afin de diminuer la course de serrage de l
Figure imgb0001
écrou. On voit donc ici, qu
Figure imgb0001
avec les brides de serrage de l
Figure imgb0001
art antérieur, les étapes de serrage et de mise parallèle du corps d
Figure imgb0001
appui sont des opérations distinctes. Ainsi, il se produit généralement que lors du réglage de parallélisme, vu que le corps d
Figure imgb0001
appui fait office de levier entre le bec d
Figure imgb0001
appui et l
Figure imgb0001
élargissement d
Figure imgb0001
appui de la tige filetée, on desserre ou resserre le serrage de la pièce. Un nouveau réglage du serrage peut dérégler légèrement le parallélisme.For
Figure imgb0001
installation of
Figure imgb0001
a workpiece on a table, for example a horizontal table, the workpiece is all
Figure imgb0001
first placed and positioned on said table. Then we introduce the
Figure imgb0001
lower end of the tie rod in a table groove, position the tie rod so that
Figure imgb0001
it is retained by the groove and we just place the spout d
Figure imgb0001
support on the face of the part to be retained. For this it is necessary to
Figure imgb0001
open the flange sufficiently, place the spout d
Figure imgb0001
support and tighten l
Figure imgb0001
nut to tighten the spout
Figure imgb0001
support against the face of the part. So that the clamping is effective and that the body of
Figure imgb0001
support is parallel to the table, we then act on the
Figure imgb0001
rear threaded axle, or we have the necessary shims, in order to
Figure imgb0001
get this parallelism. L
Figure imgb0001
operation is repeated for the other workpiece fixing flanges. Usually, shims can be arranged between the face of the part to be clamped and the spout
Figure imgb0001
support, in order to reduce the clamping stroke of the
Figure imgb0001
nut. So we see here, that
Figure imgb0001
with the clamps of the
Figure imgb0001
prior art, the tightening and paralleling steps of the body d
Figure imgb0001
support are separate operations. Thus, it generally occurs that when adjusting parallelism, since the body d
Figure imgb0001
support acts as a lever between the spout
Figure imgb0001
support and l
Figure imgb0001
widening of
Figure imgb0001
support of the threaded rod, the clamping of the part is loosened or tightened. A new tightening adjustment can slightly disrupt the parallelism.

D

Figure imgb0001
autres brides de l
Figure imgb0001
art antérieur possèdent des moyens à ressort disposés vers l
Figure imgb0001
arrière du corps d
Figure imgb0001
appui afin de tenter de le maintenir en position; l
Figure imgb0001
expérience a montré que ces brides ne sont pas efficaces, et que le parallélisme n
Figure imgb0001
est non plus pas assuré.D
Figure imgb0001
other brides of the
Figure imgb0001
prior art have spring means arranged towards the
Figure imgb0001
back of body d
Figure imgb0001
support in an attempt to keep it in position; l
Figure imgb0001
experience has shown that these flanges are not effective, and that the parallelism n
Figure imgb0001
is also not insured.

Ainsi, avec les brides connues de l

Figure imgb0001
art antérieur où l
Figure imgb0001
opération de serrage est effectuée indépendamment de celle de mise parallèle du corps d
Figure imgb0001
appui, on a de nombreux inconvénients, comme difficulté d
Figure imgb0001
obtenir une valeur régulière de serrage lorsque plusieurs brides sont chargées de maintenir la pièce, ceci étant particulièrement remarquable dans le cas de pièces massives en rotation, ou alors parallélisme non parfait, ce qui fait que le serrage de la pièce ne se fait pas sur la surface totale du bec d
Figure imgb0001
appui mais seulement sur une portion de cette surface, ce qui peut provoquer un desserrage ultérieur et/ou un marquage d
Figure imgb0001
une empreinte sur la face serrée. La nécessité d
Figure imgb0001
utiliser éventuellement des cales est aussi un inconvénient dans la mesure où il est alors nécessaire de manipuler de nombreuses pièces. Dans tous les cas ces brides nécessitent un temps important pour leur installation correcte.So with the known flanges of l
Figure imgb0001
prior art where
Figure imgb0001
tightening operation is carried out independently of that of placing the body in parallel
Figure imgb0001
support, there are many disadvantages, such as difficulty of
Figure imgb0001
obtain a regular tightening value when several flanges are responsible for holding the part, this being particularly remarkable in the case of massive parts in rotation, or else not perfect parallelism, which means that the tightening of the part is not done on the total area of the spout
Figure imgb0001
support but only on a portion of this surface, which can cause subsequent loosening and / or a marking d
Figure imgb0001
an imprint on the tight side. The need for
Figure imgb0001
possibly using shims is also a disadvantage since it is then necessary to handle many parts. In all cases these flanges require significant time for their correct installation.

Le but de l

Figure imgb0001
invention est de proposer une bride de serrage dont la mise parallèle du corps de serrage se fait automatiquement et simultanément à l
Figure imgb0001
opération de serrage et qui donc évite les inconvénients mentionnés pour les brides de l
Figure imgb0001
art antérieur.The purpose of
Figure imgb0001
invention is to provide a clamping flange whose paralleling of the clamping body is done automatically and simultaneously with the
Figure imgb0001
tightening operation and which therefore avoids the drawbacks mentioned for the flanges of the
Figure imgb0001
prior art.

Ce but est atteint par une bride de serrage possédant les caractéristiques mentionnées dans les revendications.This object is achieved by a clamp having the characteristics mentioned in the claims.

L

Figure imgb0001
invention est décrite plus en détail ci-dessous, en regard du dessin annexé comportant les figures où.

  • la figure 1 représente une vue latérale d
    Figure imgb0001
    une première forme d
    Figure imgb0001
    exécution d
    Figure imgb0001
    une bride de serrage selon l'invention, et
  • la figure 2 représente une deuxième forme d
    Figure imgb0001
    exécution d
    Figure imgb0001
    une telle bride,
L
Figure imgb0001
invention is described in more detail below, with reference to the accompanying drawing comprising the figures.
  • Figure 1 shows a side view of
    Figure imgb0001
    a first form of
    Figure imgb0001
    execution of
    Figure imgb0001
    a clamp according to the invention, and
  • Figure 2 shows a second form of
    Figure imgb0001
    execution of
    Figure imgb0001
    such a bridle,

A la figure 1 on a, de manière connue, une table porte-pièce 1, comportant notamment une surface d

Figure imgb0001
appui plane supérieure 10, dans laquelle une rainure 11 comportant deux faces d
Figure imgb0001
appui latérales supérieures 12 a été aménagée. Une pièce à usiner 13 est posée sur la face d
Figure imgb0001
appui 10, ladite pièce comportant une face 14, parallèle à la surface d
Figure imgb0001
appui 10 de la table, et sur laquelle doit venir se placer la bride de serrage 2 afin de maintenir la pièce 13 sur la table 1.In Figure 1 there is, in known manner, a workpiece table 1, comprising in particular a surface d
Figure imgb0001
upper flat support 10, in which a groove 11 comprising two faces d
Figure imgb0001
upper lateral support 12 has been fitted. A workpiece 13 is placed on the face d
Figure imgb0001
support 10, said part comprising a face 14, parallel to the surface d
Figure imgb0001
support 10 of the table, and on which the clamp 2 should come to place in order to maintain the part 13 on the table 1.

La bride de serrage 2 comprend un corps d

Figure imgb0001
appui 20 de forme essentiellement parallélipipédique dont l
Figure imgb0001
extrémité avant comprend le bec d
Figure imgb0001
appui 21 dont la surface plane inférieure 21a est destinée à venir appuyer la face 14 de la pièce à usiner 13. Une autre partie de la bride 2 est constituée d
Figure imgb0001
un plot de fixation 22, destiné à être installé dans la rainure 11, disposé essentiellement parallèlement au corps d
Figure imgb0001
appui 20, s
Figure imgb0001
étendant sur une portion centrale de la longueur de ce dernier et comportant deux surfaces d
Figure imgb0001
appui latérales supérieures 22a destinées à s
Figure imgb0001
appuyer contre les surfaces d
Figure imgb0001
appui correspondantes 12 de la rainure 11 lors du serrage de la pièce. La bride 2 comprend encore un bloc d
Figure imgb0001
appui arrière 23, de préférence mais non obligatoirement fixé à l
Figure imgb0001
arrière du plot de fixation 22. Ce bloc d
Figure imgb0001
appui comprend une surface d
Figure imgb0001
appui 23a venant s
Figure imgb0001
appuyer sur la face plane 10 de la table 1 afin de former appui lors du serrage. Le corps d
Figure imgb0001
appui 20 et le plot de fixation 22 ainsi que le bloc d
Figure imgb0001
appui arrière 23 sont réunis par deux axes filetés 24 et 25 de la manière décrite ci-dessous. L
Figure imgb0001
extrémité inférieure 24a du premier axe fileté 24 est fixée de manière non mobile dans la partie avant du plot de fixation 22 par des moyens connus de la technique, par exemple une vis transversale ou une clavette représentée en 22b. Cet axe 24 fait donc partie du plot de fixation 22. Un évidement cylindrique traversant 20a est aménagé à travers le corps d
Figure imgb0001
appui 20, légèrement en arrière du bec 21. Un organe de serrage 26, constitué ici d
Figure imgb0001
une douille 26a engagée de manière pivotante dans l
Figure imgb0001
évidement cylindrique 20a comprend à son extrémité supérieure une bague moletée 26b et/ou un écrou six pans 26c qui lui est fixé. A l
Figure imgb0001
extrémité inférieure de l
Figure imgb0001
organe 26, soit sur la face inférieure du corps d
Figure imgb0001
appui 20, une roue dentée 30, faisant partie de moyens de transmission qui seront décrits plus bas, est fixée à la douille 26a. On comprend donc que lorsque l
Figure imgb0001
organe 26, maintenu dans l
Figure imgb0001
évidement cylindrique 20a est engagé par le filetage de la bague moletée 26b et/ou de l
Figure imgb0001
écrou 26c sur l
Figure imgb0001
extrémité supérieure de l
Figure imgb0001
axe fileté 24, une rotation dudit organe 26 entraîne un serrage ou un desserrage du corps 20 relativement au plot de fixation 22, respectivement du bec d
Figure imgb0001
appui 21 relativement à la table porte-pièce 1. Le deuxième axe fileté 25 est disposé vers l
Figure imgb0001
arrière du corps d
Figure imgb0001
appui 20, son extrémité supérieure tournant librement dans ledit corps d
Figure imgb0001
appui. Cet axe fileté 25 est engagé dans un trou fileté 23b traversant le bloc d
Figure imgb0001
appui 23. Vu la pression d
Figure imgb0001
appui exercée lors du serrage de la pièce 13, l
Figure imgb0001
extrémité supérieure de l
Figure imgb0001
axe fileté 25 est munie d
Figure imgb0001
un élargissement cylindrique 25a, dont la face supérieure est de préférence bombée, disposé dans un logement cylindrique correspondant borgne 20b aménagé sur la face inférieure du bloc 20. On comprend ainsi qu
Figure imgb0001
en faisant pivoter l
Figure imgb0001
axe 25, il est possible de régler la hauteur de la portion arrière du bloc 20, soit d
Figure imgb0001
amener celui-ci parallèlement à la table 1.The clamp 2 includes a body d
Figure imgb0001
support 20 of essentially parallelepiped shape, the l
Figure imgb0001
front end includes spout
Figure imgb0001
support 21, the lower flat surface 21a of which is intended to come into contact with the face 14 of the workpiece 13. Another part of the flange 2 consists of
Figure imgb0001
a fixing stud 22, intended to be installed in the groove 11, arranged essentially parallel to the body of
Figure imgb0001
support 20, s
Figure imgb0001
extending over a central portion of its length and comprising two surfaces d
Figure imgb0001
upper lateral supports 22a intended for s
Figure imgb0001
lean against the surfaces of
Figure imgb0001
corresponding support 12 of the groove 11 when tightening the part. The flange 2 also includes a block d
Figure imgb0001
rear support 23, preferably but not necessarily fixed to the
Figure imgb0001
rear of the mounting stud 22. This block of
Figure imgb0001
support includes a surface d
Figure imgb0001
support 23a coming s
Figure imgb0001
press on the flat face 10 of the table 1 to form a support during tightening. The body of
Figure imgb0001
support 20 and the fixing stud 22 as well as the block d
Figure imgb0001
rear support 23 are joined by two threaded pins 24 and 25 in the manner described below. L
Figure imgb0001
lower end 24a of the first threaded axis 24 is fixed in a non-movable manner in the front part of the fixing stud 22 by means known in the art, for example a transverse screw or a key shown in 22b. This axis 24 therefore forms part of the fixing stud 22. A through cylindrical recess 20a is arranged through the body of
Figure imgb0001
support 20, slightly behind the spout 21. A clamping member 26, constituted here by
Figure imgb0001
a socket 26a pivotally engaged in the
Figure imgb0001
cylindrical recess 20a comprises at its upper end a knurled ring 26b and / or a hex nut 26c which is fixed to it. At l
Figure imgb0001
lower end of the
Figure imgb0001
organ 26, either on the underside of the body d
Figure imgb0001
support 20, a toothed wheel 30, forming part of transmission means which will be described below, is fixed to the bush 26a. We therefore understand that when l
Figure imgb0001
organ 26, maintained in the
Figure imgb0001
cylindrical recess 20a is engaged by the thread of the knurled ring 26b and / or the
Figure imgb0001
26c nut on the
Figure imgb0001
upper end of the
Figure imgb0001
threaded axis 24, a rotation of said member 26 causes the body 20 to be tightened or loosened relative to the fixing stud 22, respectively of the spout
Figure imgb0001
support 21 relative to the workpiece table 1. The second threaded pin 25 is disposed towards the
Figure imgb0001
back of body d
Figure imgb0001
support 20, its upper end freely rotating in said body d
Figure imgb0001
support. This threaded pin 25 is engaged in a threaded hole 23b passing through the block d
Figure imgb0001
support 23. Given the pressure d
Figure imgb0001
support exerted when tightening the part 13, l
Figure imgb0001
upper end of the
Figure imgb0001
threaded pin 25 is provided with
Figure imgb0001
a cylindrical enlargement 25a, the upper face of which is preferably curved, disposed in a corresponding blind cylindrical housing 20b arranged on the lower face of the block 20. It is thus understood that
Figure imgb0001
by rotating the
Figure imgb0001
axis 25, it is possible to adjust the height of the rear portion of the block 20, i.e. d
Figure imgb0001
bring it parallel to table 1.

Afin d

Figure imgb0001
éviter les inconvénients mentionnés dans les brides de l
Figure imgb0001
art antérieur, la bride 2 est munie de moyens de transmission mécanique 3 permettant que lors d
Figure imgb0001
un réglage de la hauteur de la portion avant du bloc 20, la portion arrière soit simultanément et automatiquement réglée à la même hauteur. Dans cette forme d
Figure imgb0001
exécution les moyens de transmission sont constitués de la première roue dentée 30 vue plus haut, fixée à la douille 26a et d
Figure imgb0001
un jeu de roues dentées intermédiaires 31 pivotant librement sur des axes fixés à la surface inférieure du bloc 20, la dernière roue 31 engageant une autre roue dentée 32 fixée à l
Figure imgb0001
extrémité supérieure du deuxième axe fileté 25, sous l
Figure imgb0001
élargissement d
Figure imgb0001
appui 25a. On comprend donc qu
Figure imgb0001
en agissant sur l
Figure imgb0001
organe 26, l
Figure imgb0001
abaissement ou le relèvement du corps 20 est commandé de la manière décrite plus haut alors que simultanément le mouvement de rotation est transmis via les roues dentées 30, 31 et 32 au deuxième axe fileté 25 afin de régler la hauteur de la portion arrière du bloc 20 qui reste ainsi toujours parallèle à la table 1. On remarque que selon la hauteur réglée, l
Figure imgb0001
extrémité inférieure de l
Figure imgb0001
axe 25 peut dépasser de la face inférieure d
Figure imgb0001
appui 23a du bloc d
Figure imgb0001
appui 23; ceci n
Figure imgb0001
est pas un inconvénient puisque alors cette extrémité pénètre à l
Figure imgb0001
intérieur de la rainure 11, ce qui lui laisse suffisamment de place disponible.For
Figure imgb0001
avoid the disadvantages mentioned in the flanges of the
Figure imgb0001
prior art, the flange 2 is provided with mechanical transmission means 3 allowing that during
Figure imgb0001
an adjustment of the height of the front portion of the block 20, the rear portion is simultaneously and automatically adjusted to the same height. In this form of
Figure imgb0001
execution the transmission means consist of the first toothed wheel 30 seen above, fixed to the socket 26a and d
Figure imgb0001
a set of intermediate toothed wheels 31 pivoting freely on axes fixed to the lower surface of the block 20, the last wheel 31 engaging another toothed wheel 32 fixed to the
Figure imgb0001
upper end of the second threaded pin 25, under the
Figure imgb0001
widening of
Figure imgb0001
support 25a. We therefore understand that
Figure imgb0001
acting on
Figure imgb0001
organ 26, l
Figure imgb0001
lowering or raising of the body 20 is controlled as described above while simultaneously the rotational movement is transmitted via the toothed wheels 30, 31 and 32 to the second threaded axis 25 in order to adjust the height of the rear portion of the block 20 which thus always remains parallel to table 1. We note that depending on the height set, l
Figure imgb0001
lower end of the
Figure imgb0001
axis 25 can protrude from the underside d
Figure imgb0001
support 23a of block d
Figure imgb0001
support 23; this n
Figure imgb0001
is not a disadvantage since then this end enters the
Figure imgb0001
inside the groove 11, which leaves it with sufficient space.

Une deuxième forme d

Figure imgb0001
exécution d
Figure imgb0001
une bride de serrage 4 est représentée à la figure 2. Comme précédemment la bride 4 comprend un corps d
Figure imgb0001
appui 40 avec un bec d
Figure imgb0001
appui 41. Dans cette forme d
Figure imgb0001
exécution, les moyens de transmission de mouvement 5 sont constitués d
Figure imgb0001
une première roue dentée 50, fixée à la douille 26a et d
Figure imgb0001
une deuxième roue dentée 51 fixée comme précédemment sur l
Figure imgb0001
arbre fileté 25. Les moyens permettant de transmettre le mouvement de la roue 50 à la roue 51 sont ici constitués d
Figure imgb0001
une chaîne à galets 52 ou d
Figure imgb0001
une courroie crantée.A second form of
Figure imgb0001
execution of
Figure imgb0001
a clamp 4 is shown in Figure 2. As before the clamp 4 includes a body d
Figure imgb0001
support 40 with a spout
Figure imgb0001
support 41. In this form of
Figure imgb0001
execution, the movement transmission means 5 consist of
Figure imgb0001
a first toothed wheel 50, fixed to the bush 26a and d
Figure imgb0001
a second toothed wheel 51 fixed as above on the
Figure imgb0001
threaded shaft 25. The means for transmitting the movement of the wheel 50 to the wheel 51 are here constituted by
Figure imgb0001
a roller chain 52 or d
Figure imgb0001
a toothed belt.

On remarque aussi sur cette forme d

Figure imgb0001
exécution que les moyens de transmission 5 ont été logés à l
Figure imgb0001
intérieur du corps 40; pour ceci un évidemment 42 a été aménagé pour loger le mécanisme, une paroi de fermeture 43, fixée à la portion supérieure du corps 40 par des moyens connus non représentés permettent d
Figure imgb0001
enfermer ledit mécanisme de transmission. De cette manière, les organes de transmission de mouvement sont protégés des copeaux ainsi que des liquides d
Figure imgb0001
usinage. Il est évident que les moyens de transmission 3 relatifs à la première forme d
Figure imgb0001
exécution pourraient aussi être logés à l
Figure imgb0001
intérieur du corps d
Figure imgb0001
appui afin de les protéger.We also notice on this form of
Figure imgb0001
execution that the transmission means 5 have been housed at the
Figure imgb0001
inside the body 40; for this an obviously 42 has been arranged to house the mechanism, a closing wall 43, fixed to the upper portion of the body 40 by known means not shown allow d
Figure imgb0001
enclosing said transmission mechanism. In this way, the movement transmitting members are protected from shavings as well as from liquids.
Figure imgb0001
machining. It is obvious that the relative means of transmission 3 at the first form of
Figure imgb0001
execution could also be accommodated at the
Figure imgb0001
body interior
Figure imgb0001
support to protect them.

A côté des deux formes d

Figure imgb0001
exécution décrites, d
Figure imgb0001
autres variantes d
Figure imgb0001
exécution peuvent être envisagées; n
Figure imgb0001
importe quel moyen permettant de transmettre mécaniquement le mouvement de rotation de la douille 26a à l
Figure imgb0001
arbre fileté 25 peut être proposé, comme par exemple un arbre de transmission, perpendiculaire aux deux arbres filetés et engrenant sur les deux dits arbres. La transmission a été décrite comme étant une transmission de rapport 1/1 et de sens identique, faisant que les filetages des deux axes 24 et 25 sont identiques. On pourrait aussi avoir, pour des raisons de dimensionnement de la bride, la nécessité de prévoir un rapport différent et/ou des sens de rotation différents des deux axes. Dans ce cas les filetages des axes doivent être adaptés, de telle manière que pour un déplacement d
Figure imgb0001
une quantité donnée et selon un sens donné de l
Figure imgb0001
extrémité avant du bloc d
Figure imgb0001
appui, on ait un déplacement identique de l
Figure imgb0001
extrémité arrière dudit bloc. De même, la transmission de mouvement a été décrite comme disposée sous ou dans le corps d
Figure imgb0001
appui; cette transmission pourrait tout aussi bien être logée ailleurs, par exemple au-dessus du corps d
Figure imgb0001
appui ou alors à proximité du bloc de fixation, respectivement de la table porte-outils. Le mécanisme de transmission pourrait aussi n
Figure imgb0001
être que partiellement protégé, étant seulement partiellement inclus dans le corps d'appui. Le bloc d
Figure imgb0001
appui arrière 23 a été décrit comme étant fixé au bloc de fixation; ceci peut être un avantage afin d
Figure imgb0001
augmenter la rigidité du dispositif, toutefois on pourrait tout aussi bien avoir deux éléments indépendants, le bloc de fixation pouvant alors se limiter à un embout de fixation fixé à l
Figure imgb0001
extrémité inférieure de l
Figure imgb0001
arbre fileté 24. Dans le cas où il n
Figure imgb0001
est pas nécessaire que la bride de fixation soit démontable de la table porte-pièce, il est possible d
Figure imgb0001
intégrer directement le bloc de fixation et le bloc d
Figure imgb0001
appui à cette dernière. De même les moyens d
Figure imgb0001
actionnement de l
Figure imgb0001
organe 26 ont été décrits comme étant constitués d
Figure imgb0001
une bague moletée associée à un écrou six pans, cette disposition permet d
Figure imgb0001
avoir un serrage rapide à la main par la bague moletée suivi d
Figure imgb0001
un serrage plus ferme à l
Figure imgb0001
aide d
Figure imgb0001
une clé. Toute autre disposition ou moyens permettant d
Figure imgb0001
actionner la douille 26a peuvent être envisagés.Next to the two forms of
Figure imgb0001
described execution, d
Figure imgb0001
other variants of
Figure imgb0001
execution may be considered; not
Figure imgb0001
any means for mechanically transmitting the rotational movement of the sleeve 26a to the
Figure imgb0001
threaded shaft 25 can be proposed, such as for example a transmission shaft, perpendicular to the two threaded shafts and meshing on the two said shafts. The transmission has been described as being a 1/1 ratio transmission and identical direction, making that the threads of the two axes 24 and 25 are identical. One could also have, for reasons of dimensioning of the flange, the need to provide a different ratio and / or different directions of rotation of the two axes. In this case the threads of the axes must be adapted, so that for a displacement of
Figure imgb0001
a given quantity and according to a given sense of l
Figure imgb0001
front end of block d
Figure imgb0001
support, we have an identical displacement of l
Figure imgb0001
rear end of said block. Similarly, motion transmission has been described as arranged under or in the body of
Figure imgb0001
support; this transmission could just as easily be housed elsewhere, for example above the body of
Figure imgb0001
support or then near the fixing block, respectively of the tool table. The transmission mechanism could also n
Figure imgb0001
be only partially protected, being only partially included in the support body. The block of
Figure imgb0001
rear support 23 has been described as being fixed to the fixing block; this can be an advantage in order to
Figure imgb0001
increase the rigidity of the device, however we could just as easily have two independent elements, the fixing block can then be limited to a fixing end piece fixed to the
Figure imgb0001
lower end of the
Figure imgb0001
threaded shaft 24. If there is n
Figure imgb0001
it is not necessary that the fixing flange be removable from the workpiece table, it is possible to
Figure imgb0001
directly integrate the fixing block and the block
Figure imgb0001
support for the latter. Likewise the means of
Figure imgb0001
actuation of
Figure imgb0001
organ 26 have been described as consisting of
Figure imgb0001
a knurled ring associated with a hex nut, this arrangement allows
Figure imgb0001
have a quick tightening by hand by the knurled ring followed by
Figure imgb0001
firmer tightening
Figure imgb0001
help
Figure imgb0001
a key. Any other provision or means allowing
Figure imgb0001
actuating the socket 26a can be envisaged.

La bride de fixation selon l'invention peut être conçue selon n

Figure imgb0001
importe quelles dimensions, adaptée à des pièces de grandes ou de petites dimensions. Elle peut être installée sur une table porte-pièce fixe ou mobile, dont la surface d
Figure imgb0001
appui est horizontale, verticale ou inclinée. Elle est donc parfaitement adaptée à n
Figure imgb0001
importe quel type de machine-outil, les presses hydrauliques étant incluses, sur laquelle la pièce à usiner est fixée sur une telle table. Elle peut tout aussi bien servir à fixer un outil d
Figure imgb0001
usinage sur une table porte-outil, de la même manière que décrite pour la pièce à usiner. Une telle bride de fixation élimine les inconvénients des brides selon l
Figure imgb0001
art antérieur, son corps d
Figure imgb0001
appui restant toujours parallèle à la surface d
Figure imgb0001
appui de la table, elle est plus facilement et plus rapidement mise en action pour serrer une pièce et évite de marquer la pièce. De plus une telle bride permet de s
Figure imgb0001
affranchir de l
Figure imgb0001
utilisation de cales.The fixing flange according to the invention can be designed according to n
Figure imgb0001
no matter what dimensions, suitable for large or small parts. It can be installed on a fixed or mobile workpiece table, the surface of which
Figure imgb0001
support is horizontal, vertical or inclined. It is therefore perfectly suited to n
Figure imgb0001
any type of machine tool, hydraulic presses being included, on which the workpiece is fixed on such a table. It can just as easily be used to fix a tool
Figure imgb0001
machining on a tool table, in the same way as described for the workpiece. Such a fixing flange eliminates the disadvantages of flanges according to the
Figure imgb0001
prior art, his body d
Figure imgb0001
support always remaining parallel to the surface d
Figure imgb0001
support of the table, it is more easily and quickly put into action to clamp a part and avoids marking the part. In addition such a flange allows s
Figure imgb0001
free from
Figure imgb0001
use of wedges.

Les moyens décrits ci-dessus relativement à une bride de serrage peuvent être étendus à un dispositif de serrage plus général, constitué par exemple d

Figure imgb0001
une plaque comportant un moyen de serrage en un endroit ainsi que plusieurs moyens de mise parallèle de ladite plaque, répartis en plusieurs endroits de celle-ci, lesdits moyens de mise parallèle étant couplés avec le moyen de serrage.The means described above relative to a clamping flange can be extended to a more general clamping device, consisting for example of
Figure imgb0001
a plate comprising a clamping means in one place as well as several means for placing said plate in parallel, distributed in several places thereof, said paralleling means being coupled with the clamping means.

Claims (12)

Bride (2;4) pour le serrage d
Figure imgb0192
une pièce (13) sur une table (1) d
Figure imgb0192
une machine-outil, comportant un corps d
Figure imgb0192
appui (20;40) et des moyens de fixation (22) à ladite table et au moins un moyen de serrage (24,26) d
Figure imgb0192
une première portion (21) dudit corps d
Figure imgb0192
appui contre ladite pièce,
   caractérisée en ce qu
Figure imgb0192
elle comprend en outre
   des moyens de réglage (25) de la distance d
Figure imgb0192
au moins une autre portion dudit corps d
Figure imgb0192
appui relativement à ladite table, lesdits moyens de réglage étant actionnés par lesdits moyens de serrage, de manière à ce qu
Figure imgb0192
une surface du corps d
Figure imgb0192
appui (21a) reste toujours essentiellement parallèle à un plan (10) de ladite table.Flange (2; 4) for tightening d
Figure imgb0192
a piece (13) on a table (1) d
Figure imgb0192
a machine tool, comprising a body of
Figure imgb0192
support (20; 40) and fixing means (22) to said table and at least one clamping means (24,26) d
Figure imgb0192
a first portion (21) of said body d
Figure imgb0192
support against said part,
characterized in that
Figure imgb0192
it also includes
means for adjusting (25) the distance d
Figure imgb0192
at least one other portion of said body d
Figure imgb0192
support relative to said table, said adjustment means being actuated by said clamping means, so that
Figure imgb0192
a body surface d
Figure imgb0192
support (21a) always remains essentially parallel to a plane (10) of said table. Bride selon la revendication 1, caractérisée en ce que ladite surface du corps d
Figure imgb0192
appui toujours parallèle au plan de la table est une surface inférieure plane (21a) d
Figure imgb0192
un bec d
Figure imgb0192
appui (21) situé vers l
Figure imgb0192
extrémité avant du corps d
Figure imgb0192
appui (20).Flange according to claim 1, characterized in that said surface of the body d
Figure imgb0192
support always parallel to the table plane is a flat bottom surface (21a) d
Figure imgb0192
a beak
Figure imgb0192
support (21) located towards the
Figure imgb0192
front end of body d
Figure imgb0192
support (20). Bride selon l'une des revendications 1 ou 2, caractérisée en ce que les moyens de serrage sont constitués d
Figure imgb0192
un premier axe fileté (24) fixé à une portion des moyens de fixation (22) à la table (1), et d
Figure imgb0192
un organe de serrage (26) constitué d
Figure imgb0192
une douille (26a) munie de moyens de serrage (26b,26c), ladite douille étant en rotation libre dans un évidement cylindrique (20a) du corps d
Figure imgb0192
appui (20) disposé en arrière de sa portion d
Figure imgb0192
extrémité avant (21), ladite douille (26a) étant engagée en rotation par un filetage interne autour dudit premier axe fileté (24).Flange according to one of claims 1 or 2, characterized in that the clamping means consist of
Figure imgb0192
a first threaded axis (24) fixed to a portion of the fixing means (22) to the table (1), and d
Figure imgb0192
a clamping member (26) consisting of
Figure imgb0192
a bush (26a) provided with clamping means (26b, 26c), said bush being in free rotation in a cylindrical recess (20a) of the body d
Figure imgb0192
support (20) disposed behind its portion d
Figure imgb0192
front end (21), said sleeve (26a) being rotatably engaged by an internal thread around said first threaded axis (24). Bride selon la revendication 3, caractérisée en ce que les moyens de réglage de la distance de la portion arrière du corps d
Figure imgb0192
appui (20) relativement à la table (1) sont constitués d
Figure imgb0192
un deuxième axe fileté (25) dont l
Figure imgb0192
extrémité supérieure (25a) est en rotation libre dans un autre évidement cylindrique (20b) du corps d
Figure imgb0192
appui disposé en avant de sa portion d
Figure imgb0192
extrémité arrière, ledit deuxième axe fileté étant engagé en rotation dans un trou taraudé (23b) aménagé dans une autre portion (23) desdits moyens de fixation à la table, des moyens de transmission (3;5) étant prévus pour actionner en rotation ledit deuxième axe fileté (25) lorsque ledit premier axe fileté (24) est mis en rotation.Flange according to claim 3, characterized in that the means for adjusting the distance of the rear portion of the body d
Figure imgb0192
support (20) relative to the table (1) consist of
Figure imgb0192
a second threaded axis (25) of which l
Figure imgb0192
upper end (25a) is freely rotating in another cylindrical recess (20b) of the body d
Figure imgb0192
support disposed in front of its portion d
Figure imgb0192
rear end, said second threaded axis being engaged in rotation in a threaded hole (23b) arranged in another portion (23) of said means for fixing to the table, transmission means (3; 5) being provided for actuating in rotation said second threaded axis (25) when said first threaded axis (24) is rotated. Bride selon la revendication 4, caractérisée en ce que les moyens de transmission sont constitués d
Figure imgb0192
un moyen mécanique (3,5) de transmission de mouvement.Flange according to claim 4, characterized in that the transmission means consist of
Figure imgb0192
mechanical means (3,5) for transmitting movement. Bride selon la revendication 5, caractérisée en ce que les moyens de transmission (3) sont constitués d
Figure imgb0192
une première roue dentée (30) coaxiale au premier axe fileté (24) et fixée à la douille pivotante (26a) et d
Figure imgb0192
une deuxième roue dentée (31) coaxiale au deuxième axe fileté (25) et fixée audit axe, ladite deuxième roue dentée (31) engrenant directement ou par l
Figure imgb0192
intermédiaire d
Figure imgb0192
au moins une roue dentée intermédiaire (32) avec ladite première roue dentée (30).Flange according to claim 5, characterized in that the transmission means (3) consist of
Figure imgb0192
a first toothed wheel (30) coaxial with the first threaded axis (24) and fixed to the pivoting sleeve (26a) and d
Figure imgb0192
a second toothed wheel (31) coaxial with the second threaded axis (25) and fixed to said axis, said second toothed wheel (31) meshing directly or by the
Figure imgb0192
intermediate d
Figure imgb0192
at least one intermediate gear (32) with said first gear (30). Bride selon la revendication 5, caractérisée en ce que les moyens de transmission (5) sont constitués d
Figure imgb0192
une première roue dentée (50) coaxiale au premier axe fileté (24) et fixée à la douille pivotante (26a) et d
Figure imgb0192
une deuxième roue dentée (51) coaxiale au deuxième axe fileté (25) et fixée audit axe, une chaîne à galets (52) entourant lesdites roues dentées afin d
Figure imgb0192
entraîner ladite deuxième roue dentée.Flange according to claim 5, characterized in that the transmission means (5) consist of
Figure imgb0192
a first toothed wheel (50) coaxial with the first threaded axis (24) and fixed to the pivoting bush (26a) and d
Figure imgb0192
a second toothed wheel (51) coaxial with the second threaded axis (25) and fixed to said axis, a roller chain (52) surrounding said toothed wheels so as to
Figure imgb0192
drive said second gear. Bride selon la revendication 5, caractérisée en ce que les moyens de transmission (5) sont constitués d
Figure imgb0192
une première roue dentée (50) coaxiale au premier axe fileté (24) et fixée à la douille pivotante (26a) et d
Figure imgb0192
une deuxième roue dentée (51) coaxiale au deuxième axe fileté (25) et fixée audit axe, une courroie crantée (52) entourant lesdites roues dentées afin d
Figure imgb0192
entraîner ladite deuxième roue dentée.Flange according to claim 5, characterized in that the transmission means (5) consist of
Figure imgb0192
a first toothed wheel (50) coaxial with the first threaded axis (24) and fixed to the pivoting bush (26a) and d
Figure imgb0192
a second toothed wheel (51) coaxial with the second threaded axis (25) and fixed to said axis, a toothed belt (52) surrounding said toothed wheels so as to
Figure imgb0192
drive said second gear. Bride selon l'une des revendications 5 à 8, caractérisée en ce que les moyens de transmission (3;5) sont de rapport 1/1, les sens de rotation des deux axes fileté (24,25) étant identiques.Flange according to one of claims 5 to 8, characterized in that the transmission means (3; 5) are of ratio 1/1, the directions of rotation of the two threaded axes (24,25) being identical. Bride selon l'une des revendications 5 à 9, caractérisée en ce que les moyens de transmission (3;5) sont disposés dans un évidement (42) du corps d
Figure imgb0192
appui (40).Flange according to one of claims 5 to 9, characterized in that the transmission means (3; 5) are arranged in a recess (42) in the body of
Figure imgb0192
support (40). Utilisation d
Figure imgb0192
au moins une bride selon l'une des revendications précédentes pour la fixation d
Figure imgb0192
une pièce à usiner (13) sur une table porte-pièce (1) d
Figure imgb0192
une machine-outil.Use of
Figure imgb0192
at least one flange according to one of the preceding claims for fixing d
Figure imgb0192
a workpiece (13) on a workpiece table (1) d
Figure imgb0192
a machine tool. Utilisation d
Figure imgb0192
au moins une bride selon l'une des revendications 1 à 10 pour la fixation d
Figure imgb0192
un outil d'usinage (13) sur une table porte-outil (1) d
Figure imgb0192
une machine-outil.Use of
Figure imgb0192
at least one flange according to one of claims 1 to 10 for fixing d
Figure imgb0192
a machining tool (13) on a tool table (1) d
Figure imgb0192
a machine tool.
EP96810659A 1996-10-02 1996-10-02 Clamping device Withdrawn EP0839610A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96810659A EP0839610A1 (en) 1996-10-02 1996-10-02 Clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810659A EP0839610A1 (en) 1996-10-02 1996-10-02 Clamping device

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EP0839610A1 true EP0839610A1 (en) 1998-05-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827396A1 (en) * 1998-06-19 1999-12-23 Heinz Stupperich Machinetool work fixture of shoe bolt and back-bearing
WO2015055329A1 (en) * 2013-10-16 2015-04-23 Bombardier Transportation Gmbh Supporting structure and method for welding an undercarriage-frame longitudinal member of a rail vehicle
CN105855961A (en) * 2016-06-01 2016-08-17 济南大学 Flexible fixture for case

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1047135A (en) * 1951-12-27 1953-12-11 Parallel clamping device
US3198509A (en) * 1962-11-19 1965-08-03 David R Sunderlage Clamp for securing work piece to machine tool table
DE3104335A1 (en) * 1981-02-07 1982-09-02 Aktiengesellschaft F.R. Mettler's Söhne Maschinenfabrik, 6415 Arth Parallel screw clamp
DE3337219A1 (en) * 1983-10-13 1985-04-25 Hans 4320 Hattingen Schoen Clamping device for clamping workpieces
GB2292538A (en) * 1994-08-23 1996-02-28 Thomas Christopher Hart Parallel motion clamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1047135A (en) * 1951-12-27 1953-12-11 Parallel clamping device
US3198509A (en) * 1962-11-19 1965-08-03 David R Sunderlage Clamp for securing work piece to machine tool table
DE3104335A1 (en) * 1981-02-07 1982-09-02 Aktiengesellschaft F.R. Mettler's Söhne Maschinenfabrik, 6415 Arth Parallel screw clamp
DE3337219A1 (en) * 1983-10-13 1985-04-25 Hans 4320 Hattingen Schoen Clamping device for clamping workpieces
GB2292538A (en) * 1994-08-23 1996-02-28 Thomas Christopher Hart Parallel motion clamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MECHANICAL WORLD & ENGRNG REC., no. 136, May 1956 (1956-05-01), pages 221, XP002023914 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827396A1 (en) * 1998-06-19 1999-12-23 Heinz Stupperich Machinetool work fixture of shoe bolt and back-bearing
DE19827396C2 (en) * 1998-06-19 2001-02-08 Heinz Stupperich Clamping device with adjustable counter bearing
WO2015055329A1 (en) * 2013-10-16 2015-04-23 Bombardier Transportation Gmbh Supporting structure and method for welding an undercarriage-frame longitudinal member of a rail vehicle
CN105855961A (en) * 2016-06-01 2016-08-17 济南大学 Flexible fixture for case

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