EP0649355B1 - Improvements relating to tools for cold flow forming of assembly points in sheet metal - Google Patents
Improvements relating to tools for cold flow forming of assembly points in sheet metal Download PDFInfo
- Publication number
- EP0649355B1 EP0649355B1 EP94916204A EP94916204A EP0649355B1 EP 0649355 B1 EP0649355 B1 EP 0649355B1 EP 94916204 A EP94916204 A EP 94916204A EP 94916204 A EP94916204 A EP 94916204A EP 0649355 B1 EP0649355 B1 EP 0649355B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- matrix
- parts
- tool
- shell
- tools according
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 4
- 239000002184 metal Substances 0.000 title claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 230000001464 adherent effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/34—Means for forming clench-tongue [eg, for tieband]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5343—Means to drive self-piercing work part
Definitions
- the present invention relates to tools for making points assembly of sheets by cold flow.
- the invention relates to tools for assembling sheets in which is superimposed at least two sheets and, using a punch and a matrix, we realize simultaneously in said sheets, from a face, a cavity, to form on the other side a projection, the cavity of one of the sheets receiving the projection of the other sheet, this so-called cavity forming an enlargement in the vicinity of its bottom, while that the projection, by creep, forms a flaring fitting in enlargement.
- this clinching assembly we designates this clinching assembly.
- the matrix is formed of at least two shells which, at one end, cooperate with an anvil while the other end is slidably mounted on a guide surface against the action of elastic means, a stop being provided to limit the spacing of the shells.
- the elastic means are constituted by an elastomer element enclosing the shells.
- the stop is generally formed by a sleeve fixed to the body of the second tool.
- the spacing shells exceeds that originally planned, such as they come up against the elastomer element, they risk to be damaged.
- One of the aims of the present invention is to remedy these various drawbacks.
- the invention sees tools for achieving assembly points of sheets by cold creep, said tools comprising a first tool with a punch and a blank holder and a second tool with a guide surface from which to stand a finger terminated by an anvil, matrix formed by, at least two shells, each of said shells having a heel mounted sliding against the guide surface and being applied against the lateral surface of the finger by elastic means, means for guiding the shells being provided as well as a stop limiting the spacing of said shells between them during creep, characterized in that the stopper is made up by two half-carcasses elastically fixed on the second tool.
- each shell has a groove and the half-carcasses are terminated, on the internal side, by a rim cooperating with the edge of the throat adjacent to the heel to constitute the means for guiding the shells.
- the elastic means applying the shells against the surface side of the finger are constituted by a tension spring ring-shaped mounted in the bottom of the throat shells.
- the heel of one at least of the shells comprises, on a face turned in look of the corresponding face of the other shell, a rebate, the guide surface comprising a cooperating stud with said rebate.
- each half-carcass comprises openings located at the guide surface.
- each half-carcass comprises means cooperating with means of the second tool to oppose the rotation of said half-carcasses compared to said second tool.
- the second tool has flats and each carcass of the elastic legs, cut in the lateral surface, intended to cooperate with the flats.
- each half-carcass has, on its internal face, a stud intended to cooperate with a rebate of the heel of the shells.
- each angle of the heels being likely to slide, when the spacing of the shells, in corresponding openings of the half-carcasses.
- FIG 1 there is shown a first tool 1 having a tail 2 intended to be fixed on a jack and having a shoulder 3 and a ferrule 4 between which is inserted a blank holder 5 pierced with an opening 7 crossed by a punch 6.
- the first tool 1 is intended to cooperate with a second tool 10 comprising a body 11 provided with a groove 12 extended by a projecting ring 13 in the center of which is erected a finger 14 terminated by an anvil 15.
- the ring 13, on the side of the finger 14, is perfectly upright and has a guide surface 16, a stud 17 protruding from this guide surface 16.
- a matrix 20 is formed by four shells 18 having, at one end, a large bearing surface 19 and, at the other end, a heel 21 intended to cooperate with the guide surface 16, each heel 21 having, on one of its edges intended to be turned towards the corresponding edge another shell, a rebate 22, the depth corresponds to the thickness of the nipple 17.
- a wide groove 24 with a groove 25 intended receiving a tension spring 26 in the form of a ring.
- a stop constituted by two half-carcasses 30 having, at one end, and on the internal side a bead 31 intended to be inserted in the groove 12, the bead 31 being connected to the surface internal lateral 35 by shoulder 34, opposite end to that provided with the bead 31 being terminated by a flange 36 coming to be located opposite the groove 24 above heels 21.
- a groove 32 intended to receive a toroidal tension spring 33.
- the side wall of the half-carcasses 30, in its part located in line with the guide surface 16, comprises openings 37 allowing the filings to be eliminated, for example, by sending a jet of compressed air.
- the tool When we want to make an assembly point on two sheet metal blanks 40 and 41, the tool is lowered 1 so that said blanks are blocked between the blank holder 5 and the bearing surface 19. It will be noted that the latter has a relatively large surface which has the advantage, in particular, for aluminum blanks, to avoid the marking of said blanks.
- Punch 6 is then engaged in the blank 40 and forms a cavity in the latter and the blank 41.
- the shells 20 which constitute the matrix are kept assembled by the spring 26, when the sheet blanks 40 and 41 are pinched between the anvil 15 and the punch 6, the shells move apart elastically, thus it forms, by creep, in the vicinity of the bottom of the cavities, enlargements which provide a connection internal between the blanks.
- a space is provided between the edges 36 and the bottom grooves 24 as well as between the lateral edge of the heels 21 and the internal lateral wall of the half-carcasses 30. This space constituting the stroke necessary to allow shells 20 to realize the assembly point. However, if for some reason the stroke increases, the half-carcasses 30 can deviate elastically which avoids tools may be damaged.
- Figures 3, 4 and 5 show an embodiment more particularly intended to be used for the formation of assembly points in blanks having significant thickness.
- the race of the shells constituting the matrix is important and one is obliged to provide a stop limiting the stroke relatively cumbersome. This embodiment overcomes this drawback.
- Figure 3 there is shown, in perspective exploded, a second tool designated by the general reference 40. Of course this is combined with a first tool such as tool 1 and it is not represented on these Figures 3, 4 and 5.
- the second tool 40 comprises a body 41 provided a groove 42 extended by a projecting ring 43 in the center of which stands a finger 44 ending in a anvil 45, the surface of the ring 43, turned towards the side of the finger 44, constitutes a guide surface 46 for the heels 47 of shells 48.
- the ring 43 comprises, offset by 180 °, two flats 50.
- the shells 48 are four in number and each have an end opposite to the heel 47, a large bearing surface 52, and between these two elements laterally a groove 53, each heel 47 comprising a rebate 54.
- the four heels 47 form a square and have each an angle 55.
- a tension spring O-ring 57 which assembles the shells 48 between them.
- a formed stop two half-carcasses which have laterally, in the vicinity at one end, a groove 61 into which is inserted a toric spring 62 ensuring their assembly.
- the half-carcasses 60 In line with throat 61 on the internal face the half-carcasses 60 have a bead 63 which is inserted in the throat 42, while in the side wall internal 64 are cut two elastic tabs 65 intended to be worn against the flats 50 so that the half-carcasses 60 cannot pivot relative to the body 41.
- Each half-carcass 60 has two openings oblong 67 and, disposed between said openings, a nipple 68.
- the nipples 68 fit into the rebates 54 and thus oppose to the rotation of the matrix relative to the body 41.
- This arrangement allows the shells 48 to have relatively large travel without increasing the bulk half-carcasses 60.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Tyre Moulding (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
La présente invention se rapporte à des outils pour la réalisation de points d'assemblage de tôles par fluage à froid.The present invention relates to tools for making points assembly of sheets by cold flow.
L'invention concerne des outils pour l'assemblage de tôles dans lequel on superpose au moins deux tôles et, à l'aide d'un poinçon et d'une matrice, on réalise simultanément dans lesdites tôles, à partir d'une face, une cavité, pour former sur l'autre face une saillie, la cavité de l'une des tôles recevant la saillie de l'autre tôle, cette dite cavité formant un élargissement au voisinage de son fond, tandis que la saillie, par fluage, forme un évasement s'insérant dans l'élargissement. Dans le langage technique, on désigne cet assemblage par clinchage.The invention relates to tools for assembling sheets in which is superimposed at least two sheets and, using a punch and a matrix, we realize simultaneously in said sheets, from a face, a cavity, to form on the other side a projection, the cavity of one of the sheets receiving the projection of the other sheet, this so-called cavity forming an enlargement in the vicinity of its bottom, while that the projection, by creep, forms a flaring fitting in enlargement. In technical language, we designates this clinching assembly.
Dans la technique antérieure, on connaít des outils dans lesquels, la matrice est formée d'au moins deux coquilles qui, à une extrémité, coopère avec une enclume tandis que l'autre extrémité est montée glissante sur une surface de guidage contre l'action de moyens élastiques, une butée étant prévue pour limiter l'écartement des coquilles. Généralement, les moyens élastiques sont constitués par un élément en élastomère enserrant les coquilles.In the prior art, there are known tools in which the matrix is formed of at least two shells which, at one end, cooperate with an anvil while the other end is slidably mounted on a guide surface against the action of elastic means, a stop being provided to limit the spacing of the shells. Generally, the elastic means are constituted by an elastomer element enclosing the shells.
Une telle disposition présente un certain nombre d'inconvénients. Lors du fluage, il se forme obligatoirement des limailles qu'il est difficile d'évacuer, celles-ci restant adhérantes à l'élément en élastomère.Such an arrangement presents a number disadvantages. During creep, it must form filings that are difficult to evacuate, these remaining adherent to the elastomer element.
De plus, la butée est en générale formée par un manchon fixé au corps du second outil. Cette disposition présente plusieurs inconvénients. Elle nécessite de prévoir dans les coquilles des moyens de guidage ce qui forme, dans certaines parties, des affaiblissements avec le risque de casse desdites coquilles. In addition, the stop is generally formed by a sleeve fixed to the body of the second tool. This provision has several drawbacks. It requires provide in the shells for guide means which forms, in some parts, impairments with the risk of breakage of said shells.
De plus, si pour une raison quelconque, l'écartement des coquilles dépasse celui prévu initialement, comme elles butent sur l'élément en élastomère, elles risquent d'être endommagées.In addition, if for any reason, the spacing shells exceeds that originally planned, such as they come up against the elastomer element, they risk to be damaged.
Enfin, le montage et le démontage de la matrice n'est pas très aisé et demande un certain temps. Un autre dispositif comprenant des outils conforment au préambule de la revendication 1, est montré dans figures 19 à 22 de US-A-5051020Finally, the assembly and disassembly of the matrix is not very easy and takes some time. Another device comprising tools conform to the preamble of claim 1, is shown in Figures 19-22 of US-A-5051020
L'un des buts de la présente invention est de remédier à ces divers inconvénients.One of the aims of the present invention is to remedy these various drawbacks.
L'invention, voit des outils pour la réalisation de points d'assemblage de tôles par fluage à froid, lesdits outils comprenant un premier outil avec un poinçon et un serre-flan et un second outil avec une surface de guidage à partir de laquelle s'érige un doigt terminé par une enclume, matrice formée par, au moins, deux coquilles, chacune desdites coquilles présentant un talon monté glissant contre la surface de guidage et étant appliqué contre la surface latérale du doigt par des moyens élastiques, des moyens de guidage des coquilles étant prévus ainsi qu'une butée limitant l'écartement desdites coquilles entre elles lors du fluage, caractérisés en ce que la butée est constituée par deux demi-carcasses fixées élastiquement sur le second outil.The invention sees tools for achieving assembly points of sheets by cold creep, said tools comprising a first tool with a punch and a blank holder and a second tool with a guide surface from which to stand a finger terminated by an anvil, matrix formed by, at least two shells, each of said shells having a heel mounted sliding against the guide surface and being applied against the lateral surface of the finger by elastic means, means for guiding the shells being provided as well as a stop limiting the spacing of said shells between them during creep, characterized in that the stopper is made up by two half-carcasses elastically fixed on the second tool.
Suivant une variante de réalisation de l'invention la paroi latérale de chaque coquille comporte une gorge et les demi-carcasses sont terminées, du côté interne, par un rebord coopérant avec le bord de la gorge adjacent au talon pour constituer les moyens de guidage des coquilles.According to an alternative embodiment of the invention, the wall side of each shell has a groove and the half-carcasses are terminated, on the internal side, by a rim cooperating with the edge of the throat adjacent to the heel to constitute the means for guiding the shells.
Suivant encore une autre forme de l'invention les moyens élastiques appliquant les coquilles contre la surface latérale du doigt sont constitués par un ressort de traction en forme d'anneau monté dans le fond de la gorge des coquilles.According to yet another form of the invention, the elastic means applying the shells against the surface side of the finger are constituted by a tension spring ring-shaped mounted in the bottom of the throat shells.
De préférence, des moyens s'opposant à la rotation des coquilles par rapport audit second outil sont prévus. Preferably means opposing the rotation shells relative to said second tool are provided.
Suivant un détail constructif, le talon de l'une au moins des coquilles comporte, sur une face tournée en regard de la face correspondante de l'autre coquille, une feuillure, la surface de guidage comportant un téton coopérant avec ladite feuillure.According to a constructive detail, the heel of one at least of the shells comprises, on a face turned in look of the corresponding face of the other shell, a rebate, the guide surface comprising a cooperating stud with said rebate.
De préférence, chaque demi-carcasse comporte des ouvertures situées au niveau de la surface de guidage.Preferably, each half-carcass comprises openings located at the guide surface.
Suivant une variante de réalisation, chaque demi-carcasse comporte des moyens coopérant avec des moyens du second outil pour s'opposer à la rotation desdites demi-carcasses par rapport audit second outil.According to an alternative embodiment, each half-carcass comprises means cooperating with means of the second tool to oppose the rotation of said half-carcasses compared to said second tool.
Suivant un détail constructif, le second outil comporte des méplats et chaque carcasse des pattes élastiques, découpées dans la surface latérale, destinées à coopérer avec les méplats.According to a constructive detail, the second tool has flats and each carcass of the elastic legs, cut in the lateral surface, intended to cooperate with the flats.
Suivant encore une variante de réalisation, chaque demi-carcasse comporte, sur sa face interne, un téton destiné à coopérer avec une feuillure du talon des coquilles.According to yet another variant embodiment, each half-carcass has, on its internal face, a stud intended to cooperate with a rebate of the heel of the shells.
Enfin, les coquilles sont au nombre de quatre et le talon forme un carré, chaque angle destits talons étant susceptible de coulisser, lors de l'écartement des coquilles, dans des ouvertures correspondantes des demi-carcasses. Finally, there are four shells and the heel forms a square, each angle of the heels being likely to slide, when the spacing of the shells, in corresponding openings of the half-carcasses.
L'invention va maintenant être décrite avec
plus de détails en se référant à des modes de réalisation
particuliers donnés à titre d'exemple seulement et représentés
aux dessins annexés, dans lesquels :
A la figure 1, on a représenté un premier outil
1 présentant une queue 2 destinée à être fixée sur un vérin
et comportant un épaulement 3 et une virole 4 entre
lesquels est inséré un serre-flan 5 percé d'une ouverture
7 traversée par un poinçon 6.In Figure 1, there is shown a first tool
1 having a
Le premier outil 1 est destiné à coopérer avec
un second outil 10 comprenant un corps 11 pourvu d'une gorge
12 prolongée par une bague en saillie 13 au centre de
laquelle s'érige un doigt 14 terminé par une enclume 15.The first tool 1 is intended to cooperate with
a
La bague 13, du côté du doigt 14, est parfaitement
dressée et présente une surface de guidage 16, un
téton 17 faisant saillie sur cette surface de guidage 16.The
Une matrice 20 est formée de quatre coquilles
18 présentant, à une extrémité, une large surface d'appui
19 et, à l'autre extrémité, un talon 21 destiné à coopérer
avec la surface de guidage 16, chaque talon 21 présentant,
sur un de ses bords destiné à être tourné vers le bord correspondant
d'une autre coquille, une feuillure 22 dont la
profondeur correspond à l'épaisseur du téton 17.A
Entre le talon et la surface d'appui 19 est
ménagée une large gorge 24 avec une rainure 25 destinée
à recevoir un ressort de traction 26 en forme d'anneau. Between the heel and the
Sur le corps 11 est montée une butée constituée
par deux demi-carcasses 30 présentant, à une extrémité,
et du côté interne un bourrelet 31 destiné à s'insérer dans
la gorge 12, le bourrelet 31 étant raccordé à la surface
latérale interne 35 par épaulement 34, l'extrémité opposée
à celle pourvue du bourrelet 31 étant terminée par un
rebord 36 venant se situer en regard de la gorge 24 au-dessus
des talons 21.On the
Au droit du bourrelet 31, il est prévu, à la
surface extérieure, une rainure 32 destinée à recevoir un
ressort de traction torique 33.To the right of the
La paroi latérale des demi-carcasses 30, dans
sa partie située au droit de la surface de guidage 16, comporte
des ouvertures 37 permettant d'éliminer les limailles,
par exemple, par l'envoi d'un jet d'air comprimé.The side wall of the half-
Lorsqu'on veut réaliser un point d'assemblage
sur deux flans de tôle 40 et 41, on fait descendre l'outil
1 de manière que lesdits flans soient bloqués entre
le serre-flan 5 et la surface d'appui 19. On remarquera
que cette dernière présente une surface relativement importante
ce qui a l'avantage, notamment, pour des flans d'aluminium,
d'éviter le marquage desdits flans. Le poinçon 6
est ensuite engagé dans le flan 40 et forme une cavité dans
ce dernier et le flan 41. Comme les coquilles 20 qui constituent
la matrice sont maintenues assemblées par le ressort
26, lorsque les flans de tôles 40 et 41 sont pincés entre
l'enclume 15 et le poinçon 6, les coquilles s'écartent élastiquement,
ainsi il se forme, par fluage, au voisinage du
fond des cavités, des élargissements qui assurent une liaison
interne entre les flans.When we want to make an assembly point
on two
Le téton 17, en coopérant avec une feuillure
22, s'oppose à la rotation de la matrice. On remarquera
qu'un espace est ménagé entre les rebords 36 et le fond
des gorges 24 ainsi qu'entre le bord latéral des talons
21 et la paroi latérale interne des demi-carcasses 30. Cet
espace constituant la course nécessaire pour permettre aux
coquilles 20 de réaliser le point d'assemblage. Toutefois,
si pour une raison quelconque la course augmente, les demi-carcasses
30 peuvent s'écarter élastiquement ce qui évite
que les outils risquent d'être endommagés.The
Les figures 3, 4 et 5 montrent un mode de réalisation plus particulièrement destiné à être utilisé pour la formation de points d'assemblage dans des flans ayant une épaisseur importante. Dans ce cas, la course des coquilles constituant la matrice est importante et on est obligé de prévoir une butée limitant la course relativement encombrante. Ce mode de réalisation remédie à cet inconvénient.Figures 3, 4 and 5 show an embodiment more particularly intended to be used for the formation of assembly points in blanks having significant thickness. In this case, the race of the shells constituting the matrix is important and one is obliged to provide a stop limiting the stroke relatively cumbersome. This embodiment overcomes this drawback.
A la figure 3 on a représenté, en perspective
éclatée, un second outil désigné par la référence générale
40 . Bien entendu celui-ci est combiné avec un premier outil
tel que l'outil 1 et il n'est pas réprésenté sur ces
figures 3, 4 et 5.In Figure 3 there is shown, in perspective
exploded, a second tool designated by the
Le second outil 40 comprend un corps 41 pourvu
d'une gorge 42 prolongée par une bague en saillie 43
au centre de laquelle s'érige un doigt 44 terminé par une
enclume 45, la surface de la bague 43, tournée du côté du
doigt 44, constitue une surface de guidage 46 pour les talons
47 de coquilles 48.The
La bague 43 comporte, décalée de 180°, deux
méplats 50.The
Les coquilles 48 sont au nombre de quatre et
présentent, chacune, à une extrémité opposée au talon 47,
une large surface d'appui 52, et entre ces deux éléments
latéralement une gorge 53, chaque talon 47 comportant une
feuillure 54.The
Les quatre talons 47 forment un carré et présentent
chacun un angle 55.The four
Dans la gorge 53 est logé un ressort de traction
torique 57 qui assure l'assemblage des coquilles 48
entre elles. In the
Sur le corps 41 est montée une butée formée
de deux demi-carcasses qui comportent latéralement, au voisinage
d'une extrémité, une gorge 61 dans laquelle s'insère
un ressort torique 62 assurant leur assemblage.On the
Au droit de la gorge 61 sur la face interne
les demi-carcasses 60 comportent un bourrelet 63 qui s'insère
dans la gorge 42, tandis que dans la paroi latérale
interne 64 sont découpées deux pattes élastiques 65 destinées
à porter contre les méplats 50 de sorte que les demi-carcasses
60 ne peuvent pivoter par rapport au corps 41.In line with
Chaque demi-carcasse 60 présente deux ouvertures
oblongues 67 et, disposé entre lesdites ouvertures,
un téton 68.Each half-
Comme on le voit aux figures 4 et 5, les tétons
68 s'insèrent dans les feuillures 54 et s'opposent ainsi
à la rotation de la matrice par rapport au corps 41.As seen in Figures 4 and 5, the
Lorsqu'on réalise le point d'assemblage, les
talons 47 des coquilles 48 glissent sur la surface 46 contre
l'action du ressort 57 et les angles 55 traversent les ouvertures
67.When carrying out the assembly point, the
Cette disposition permet aux coquilles 48 d'avoir
un débattement relativement important sans augmenter l'encombrement
des demi-carcasses 60.This arrangement allows the
Claims (10)
- Tools for creating joints between sheet metal by means of cold forming, comprising a first tool (1) with a punch (6) and a side pressing element (5) and a second tool (10) provided with a support surface (16) from which a pin (14) terminated by an anvil (15) erects, a matrix (20) comprising at least two matrix-parts (18), each said matrix-part (18) comprising a heel (21) arranged sliding against said support surface (16) and being applied against the lateral surface of the pin (14) by means of elastic means (26), means for guiding the matrix-parts (18) being provided as well as a stop means limiting the mutual lateral displacement of said matrix-parts (18) during the forming characterised in that the stop means comprises two shell-formed parts (30) fixed elastically on said second tool (10).
- Tools according to claim 1, characterised in that the lateral wall of each matrix-part (18) is provided with a waist (24) and the shell-formed parts (30) are terminated on the inside by a flange (36) co-operating with the edge of the waist close to the heel, in order to constitute guiding means for the matrix-parts (18).
- Tools according to claims 1 and 2, characterised in that the elastic means which applies the matrix-parts (18) against the lateral surface of the pin (14) are constituted by a spring (26) in the form of a ring arranged at the bottom of the waist (24) of the matrix-parts.
- Tools according to claim 1, characterised in that means (17) for preventing the rotation of the matrix-parts (18) in relation to said second tool (10) are provided.
- Tools according to claim 4, characterised in that the heel (21) of at least one of the matrix-parts (18) is provided on a surface turned in the direction of the corresponding surface on the other matrix-part (18) with a notch (22) and that the support surface (16) is provided with a dowel co-operating with said notch.
- Tools according to claim 1, characterised in that each shell-formed part (30) is provided with openings (37) at a level corresponding to the support surface.
- Tools according to claim 1, characterised in that each shell-formed part (60) comprises means (65) co-operating with means (50) on the second tool (40) for preventing rotational movement of said shell-formed parts (60) in relation to said second tool (40).
- Tools according to claim 7, characterised in that the second tool (40) is provided with lateral flat surfaces (50) and that each shell-formed part at its lateral inner surface is provided with elastic means (65) arranged to co-operate with said flat surfaces.
- Tools according to claim 1, 4 and 7, characterised in that each shell-formed part (60) is provided with a dowel (68) on its inner surface arranged to co-operate with a notch (54) in the heel (47) of the matrix-parts (48).
- Tools according to claim 1, characterised in that the number of matrix-parts (48) is four, and that the heel (47) is formed with a 90° corner and each of said corners (55) on said heels is arranged to slide, during the movement of the matrix-parts (48), into corresponding openings (67) in the shell-formed parts (60).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9305297A FR2704785B1 (en) | 1993-05-04 | 1993-05-04 | Improvements to tools for the realization of assembly points of sheets by cold creep. |
| FR9305297 | 1993-05-04 | ||
| PCT/EP1994/001445 WO1994025196A1 (en) | 1993-05-04 | 1994-04-29 | Improvements relating to tools for cold flow forming of assembly points in sheet metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0649355A1 EP0649355A1 (en) | 1995-04-26 |
| EP0649355B1 true EP0649355B1 (en) | 1998-01-21 |
Family
ID=9446727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94916204A Expired - Lifetime EP0649355B1 (en) | 1993-05-04 | 1994-04-29 | Improvements relating to tools for cold flow forming of assembly points in sheet metal |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5509290A (en) |
| EP (1) | EP0649355B1 (en) |
| JP (1) | JPH08503893A (en) |
| AU (1) | AU6796394A (en) |
| DE (1) | DE69408080T2 (en) |
| ES (1) | ES2114689T3 (en) |
| FR (1) | FR2704785B1 (en) |
| WO (1) | WO1994025196A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8042370B2 (en) | 2006-02-07 | 2011-10-25 | Ronjo, Llc | Flow formed gear |
| DE102018218949A1 (en) | 2018-11-07 | 2020-05-07 | Volkswagen Aktiengesellschaft | Filter module |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5479687A (en) * | 1994-01-31 | 1996-01-02 | Btm Corporation | Apparatus for joining sheets of material |
| US5860315A (en) * | 1994-07-29 | 1999-01-19 | Etm Corporation | Device for securing tools |
| SE9502587D0 (en) * | 1995-07-11 | 1995-07-11 | Attexor Equip | A tool for making joints between sheet-formed members |
| US5782130A (en) * | 1997-01-27 | 1998-07-21 | Btm Corporation | Apparatus for retaining tools |
| SE9904167D0 (en) * | 1999-11-16 | 1999-11-16 | Attexor Equip | Atool for joining two or several overlaying sheet formed members |
| EP1268100B1 (en) * | 2000-04-05 | 2008-02-20 | TOX-PRESSOTECHNIK GmbH | Method for producing a press joint connection |
| US7150086B2 (en) * | 2001-04-04 | 2006-12-19 | Eugen Rapp | Tool that connects pieces through a process of riveting |
| US6785959B2 (en) * | 2002-08-15 | 2004-09-07 | Btm Corporation | Tool assembly employing a flexible retainer |
| DE10318060A1 (en) * | 2003-04-17 | 2004-11-18 | Eckold Gmbh & Co Kg | Die for a tool set for mechanical joining |
| US7694399B2 (en) * | 2005-03-04 | 2010-04-13 | Btm Corporation | Sheet fastening apparatus and method |
| DE102006024112A1 (en) * | 2006-05-19 | 2007-11-22 | Eckold Gmbh & Co Kg | Die for mechanical joining |
| US8650730B2 (en) * | 2009-02-23 | 2014-02-18 | Btm Corporation | Clinching tool |
| SE532966C2 (en) * | 2009-04-22 | 2010-05-25 | Hans Bergkvist | Apparatus for joining two or more overlapping material parts and method for manufacturing the apparatus |
| US20130042450A1 (en) * | 2011-08-15 | 2013-02-21 | Hans R. Bergkvist | Apparatus for joining two or more overlapping material members and method for manufacturing of the apparatus |
| CN102319809B (en) * | 2011-10-11 | 2013-07-31 | 苏州托克斯冲压设备有限公司 | Metal plate cutting and stamping point connecting mould and connecting method |
| WO2015063333A1 (en) * | 2013-11-04 | 2015-05-07 | Attexor Clinch Systems S.A. | Tool for making joints of clinch type |
| US10328481B2 (en) | 2014-03-18 | 2019-06-25 | Btm Company Llc | Clinching punch and apparatus |
| US9915374B2 (en) * | 2015-02-12 | 2018-03-13 | Fisher Controls International Llc | Valve stem and plug connections and staking tools |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2924312A (en) * | 1954-11-29 | 1960-02-09 | Ivan A Williams | Punch and die assembly for making interlocking integral fasteners |
| US4208776A (en) * | 1977-09-15 | 1980-06-24 | Schleicher Louis C | Punch, die and anvil set |
| US5208974A (en) * | 1980-09-08 | 1993-05-11 | Btm Corporation | Apparatus for attaching a fastener to sheet material |
| US4757609A (en) * | 1980-09-08 | 1988-07-19 | Btm Corporation | Apparatus for joining sheet material |
| EP0155619B1 (en) * | 1984-03-22 | 1990-01-17 | Gerd-Jürgen Eckold | Method for connecting metal sheets together |
| US5207086A (en) * | 1985-06-03 | 1993-05-04 | Btm Corporation | Punch anvils for sheet fastening systems |
| US5031442A (en) * | 1985-06-03 | 1991-07-16 | Btm Corporation | Punch anvils for sheet fastening systems |
| US5131258A (en) * | 1985-06-03 | 1992-07-21 | Btm Corporation | Punch anvils for sheet fastening systems |
| US4660403A (en) * | 1985-12-19 | 1987-04-28 | Weldex, Inc. | Die assembly |
| US4825525A (en) * | 1986-08-29 | 1989-05-02 | Obrecht Robert E | Clinching tool |
| DE3923182A1 (en) * | 1989-07-13 | 1991-01-24 | Fraunhofer Ges Forschung | Joining metal sheets together - involves punch and undercut die to cause sheets to interlock |
| US5051020A (en) * | 1989-11-13 | 1991-09-24 | Tech-Line Engineering Co. | Leak proof joint |
| US5230136A (en) * | 1992-05-04 | 1993-07-27 | Savair Inc. | Punch and die set for sheet metal clinching |
-
1993
- 1993-05-04 FR FR9305297A patent/FR2704785B1/en not_active Expired - Fee Related
-
1994
- 1994-04-29 US US08/362,539 patent/US5509290A/en not_active Expired - Fee Related
- 1994-04-29 JP JP6523918A patent/JPH08503893A/en active Pending
- 1994-04-29 DE DE69408080T patent/DE69408080T2/en not_active Expired - Fee Related
- 1994-04-29 EP EP94916204A patent/EP0649355B1/en not_active Expired - Lifetime
- 1994-04-29 ES ES94916204T patent/ES2114689T3/en not_active Expired - Lifetime
- 1994-04-29 WO PCT/EP1994/001445 patent/WO1994025196A1/en active IP Right Grant
- 1994-04-29 AU AU67963/94A patent/AU6796394A/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8042370B2 (en) | 2006-02-07 | 2011-10-25 | Ronjo, Llc | Flow formed gear |
| DE102018218949A1 (en) | 2018-11-07 | 2020-05-07 | Volkswagen Aktiengesellschaft | Filter module |
| DE102018218949B4 (en) | 2018-11-07 | 2023-02-16 | Volkswagen Aktiengesellschaft | filter module, cleaning system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2704785B1 (en) | 1995-07-21 |
| FR2704785A1 (en) | 1994-11-10 |
| ES2114689T3 (en) | 1998-06-01 |
| WO1994025196A1 (en) | 1994-11-10 |
| DE69408080D1 (en) | 1998-02-26 |
| US5509290A (en) | 1996-04-23 |
| DE69408080T2 (en) | 1998-08-06 |
| JPH08503893A (en) | 1996-04-30 |
| AU6796394A (en) | 1994-11-21 |
| EP0649355A1 (en) | 1995-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0649355B1 (en) | Improvements relating to tools for cold flow forming of assembly points in sheet metal | |
| EP1213980B1 (en) | Device for locking in position a mobile part relative to a fixed part | |
| EP1151204B1 (en) | Device for assembling two panels or the like and formed by two co-operating parts | |
| EP0034078A1 (en) | Multidirectional connecting system for structures | |
| EP3670988B1 (en) | Clamping device comprising a belt and a sealing ring | |
| EP1436530B1 (en) | Differential and method for assembling said differential | |
| EP1136010B1 (en) | Articulated bracelet, particularly for watches | |
| EP1702693B1 (en) | Tool chuck for a rotating machine | |
| EP0743123B1 (en) | Fluid box of an heat exchanger and method for producing the same | |
| EP3580486B1 (en) | Device for coupling two tubes with pre-assembly | |
| WO1999004306A1 (en) | Elastic hinge for flat spectacle bow | |
| CA2236542A1 (en) | Device for assembling a clamping jaw | |
| EP0099806B1 (en) | Heat exchanger with tubes locked to the tube end plate | |
| FR2687745A1 (en) | DEVICE FOR JOINING ONE AGAINST THE OTHER TWO RIGID PLATES. | |
| FR3046986A1 (en) | EASY-ASSEMBLED PEDAL STRUCTURE | |
| EP1075198B1 (en) | Bracelet | |
| EP3795877B1 (en) | Clamping collar | |
| EP0738480B1 (en) | Articulation device for connecting bracelet links | |
| EP3505779B1 (en) | Sheet metal plate, having a non-welded screw | |
| EP0657232B1 (en) | Spot connection of sheets by cold extrusion and tools for producing this connection | |
| FR2823264A1 (en) | Device for fixing part on support comprises insert, forced into support opening, and locking rod passing through insert head which separates insert branches | |
| EP0664170B1 (en) | Improvements on tools for making point connections of plates | |
| FR2715365A1 (en) | Windscreen wiper pivot assembly for vehicle | |
| FR2819573A1 (en) | Bayonet joint comprises female component with seatings, into which lugs on male component fit, collar on it resting on lip of female component and joint being locked by sleeve with internal lugs which fit between first lugs and collar | |
| CH650388A5 (en) | Bracelet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19950202 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES GB IT NL SE |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19970312 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES GB IT NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980121 |
|
| REF | Corresponds to: |
Ref document number: 69408080 Country of ref document: DE Date of ref document: 19980226 |
|
| ITF | It: translation for a ep patent filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980421 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2114689 Country of ref document: ES Kind code of ref document: T3 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980522 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020829 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20020904 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20020927 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030429 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031101 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050429 |