FR2976198A1 - Stamping press for stamping sheet metal parts of cars, has upper tool connected movably to movable upper frame, where part of tool is covered by guide plate spaced away from edges of hole for passage of retaining pin - Google Patents
Stamping press for stamping sheet metal parts of cars, has upper tool connected movably to movable upper frame, where part of tool is covered by guide plate spaced away from edges of hole for passage of retaining pin Download PDFInfo
- Publication number
- FR2976198A1 FR2976198A1 FR1155057A FR1155057A FR2976198A1 FR 2976198 A1 FR2976198 A1 FR 2976198A1 FR 1155057 A FR1155057 A FR 1155057A FR 1155057 A FR1155057 A FR 1155057A FR 2976198 A1 FR2976198 A1 FR 2976198A1
- Authority
- FR
- France
- Prior art keywords
- tool
- guide plate
- stamping
- covered
- upper tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims description 4
- 238000013016 damping Methods 0.000 claims description 12
- 239000000872 buffer Substances 0.000 claims description 5
- 230000035939 shock Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 description 1
Classifications
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- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
Description
PRESSE D'EMBOUTISSAGE, NOTAMMENT POUR L'EMBOUTISSAGE DE PIÈCES DE TOLERIE DE VÉHICULES AUTOMOBILES La présente invention concerne une presse d'emboutissage, notamment bien que non exclusivement pour l'emboutissage de pièces de tôlerie de véhicules automobiles. ARRIÈRE-PLAN DE L'INVENTION D'une façon générale, une presse d'emboutissage comporte : un outil inférieur fixe; un outil supérieur mobile par rapport à un bâti supérieur lui-même monté mobile entre une position haute dans laquelle l'outil supérieur est suspendu au bâti supérieur par des broches de retenue portées par le bâti supérieur et engagées dans des cavités de retenue de l'outil supérieur équipées de tampons amortisseurs, et une position basse dans laquelle l'outil supérieur est en contact avec une tôle en appui sur l'outil inférieur ; et des plaques de guidage de l'outil supérieur par rapport au bâti supérieur. Dans les presses d'emboutissage existantes les plaques de guidage sont séparées des cavités de retenue. L'encombrement qui en résulte est donc très important et provoque un problème d'intégration de ces deux fonctions dans certaines configurations. Dans certains cas il est nécessaire de réaliser des excroissances de fonderie en passant au-dessus des zones de travail. OBJET DE L'INVENTION Un but de l'invention et de proposer une presse d'emboutissage dont les organes de réalisation de la fonction de guidage et de la fonction de retenue présentent un encombrement réduit. BRÈVE DESCRIPTION DE L'INVENTION En vue de la réalisation de ce but, on propose selon l'invention une presse d'emboutissage, notamment pour l'emboutissage de pièces de tôlerie de véhicules automobiles, comportant un outil inférieur fixe, et un outil supérieur relié de façon mobile à un bâti supérieur mobile par des broches de retenue portées par le bâti supérieur et engagées dans des cavités de retenue de l'outil supérieur équipées de tampons amortisseurs, dans laquelle au moins une partie de l'outil supérieur comportant une cavité de retenue est couverte par une plaque de guidage percée, à distance des bords, d'un orifice de passage d'une broche de retenue. Selon une observation qui fait elle-même partie de l'invention, il a en effet été constaté que la portion centrale des plaques de guidage joue un rôle mineur dans la réalisation de la fonction de guidage de sorte que l'utilisation de cette portion centrale des plaques de guidage pour faire passer les broches de retenue permet de réduire sensiblement l'encombrement tout en assurant une réalisation efficace des fonctions de guidage et de retenue. Selon une version avantageuse de l'invention, les tampons amortisseurs ont une face extrême partiellement recouverte par la plaque de guidage associée. Ainsi, on optimise la surface utile des plaques de guidage sans augmenter l'encombrement global. De préférence, en regard d'une partie extrême du tampon amortisseur, la plaque de guidage comporte un décrochement recevant la partie extrême du tampon amortisseur. Ainsi, on optimise également la surface de contact des broches de retenue avec les tampons amortisseurs. BRÈVE DESCRIPTION DES DESSINS D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit d'un mode de réalisation particulier non limitatif de l'invention en référence aux figures ci-jointes parmi lesquelles : -La figure 1 est une vue en perspective éclatée 35 d'une partie de l'outil supérieur comportant une cavité de retenue, et d'une plaque de guidage selon l'invention, - La figure 2 est une vue en perspective de la face arrière d'une plaque de guidage selon l'invention, - La figure 3 est une vue en coupe partielle selon la ligne III-III de la figure 1 d'une partie de presse d'emboutissage selon l'invention, en position ouverte, et - La figure 4 est une vue en coupe analogue à celle de la figure 3 de la presse d'emboutissage en position fermée. DESCRIPTION DETAILLÉE DE L'INVENTION En références aux figures, la presse d'emboutissage comporte de façon connue en soi : un outil inférieur fixe 1; un outil supérieur mobile 2 comportant des cavités de retenue 3 équipées à leur extrémité supérieure d'un tampon amortisseur en caoutchouc 4 ; un bâti supérieur mobile 5 dans lequel sont encastrées des broches de retenue 6 qui s'étendent dans les cavités 3 et prennent appui sur le dessous des tampons amortisseur 4 pour supporter l'outil supérieur 2 lorsque la presse est ouverte comme illustré par la figure 3. Dans cette position une tôle 11 peut être insérée entre l'outil supérieur et l'outil inférieur. Également de façon connue en soi la presse d'emboutissage comporte un organe presseur non représenté qui prend appui sur l'outil supérieur 2 lors de la fermeture de la presse d'emboutissage, pour assurer la fonction d'emboutissage proprement dite comme illustré par la figure 4. Selon l'invention, les parties 7 de l'outil supérieur 2 comportant les cavités 3 sont recouvertes par des plaques de guidage 8 chacune percée à distance des bords d'un orifice de passage 9 d'une broche de retenue 6. The present invention relates to a stamping press, particularly although not exclusively for stamping sheet metal parts of motor vehicles. BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION In general, a stamping press comprises: a fixed lower tool; an upper movable tool relative to a top frame itself movably mounted between a high position in which the upper tool is suspended from the upper frame by retaining pins carried by the upper frame and engaged in the holding cavities of the upper tool equipped with damping buffers, and a low position in which the upper tool is in contact with a sheet bearing on the lower tool; and guide plates of the upper tool relative to the upper frame. In existing stamping presses the guide plates are separated from the holding cavities. The resulting congestion is very important and causes a problem of integration of these two functions in some configurations. In some cases it is necessary to make foundry excrescences passing over the work areas. OBJECT OF THE INVENTION An object of the invention and to provide a stamping press whose members for performing the guiding function and the retaining function have a small footprint. BRIEF DESCRIPTION OF THE INVENTION With a view to achieving this object, a stamping press is proposed according to the invention, in particular for stamping sheet metal parts of motor vehicles, comprising a fixed lower tool, and a superior tool. movably connected to a movable upper frame by retaining pins carried by the upper frame and engaged in upper tool retaining cavities equipped with damping buffers, wherein at least a portion of the upper tool having a cavity retaining is covered by a guide plate pierced away from the edges, a through hole of a retaining pin. According to an observation which is itself part of the invention, it has indeed been found that the central portion of the guide plates plays a minor role in the realization of the guiding function so that the use of this central portion guide plates for passing the retaining pins substantially reduces the bulk while ensuring an effective realization of guiding and retaining functions. According to an advantageous version of the invention, the damping buffers have an end face partially covered by the associated guide plate. Thus, it optimizes the useful surface of the guide plates without increasing the overall size. Preferably, facing an end portion of the damper pad, the guide plate comprises a recess receiving the end portion of the damper pad. Thus, it also optimizes the contact surface of the retaining pins with damping pads. BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will appear on reading the following description of a particular non-limiting embodiment of the invention with reference to the attached figures among which: FIG. 1 is an exploded perspective view of a portion of the upper tool having a retaining cavity, and a guide plate according to the invention; - Figure 2 is a perspective view of the rear face of a Guide plate according to the invention, - Figure 3 is a partial sectional view along the line III-III of Figure 1 of a stamping press part according to the invention, in the open position, and - Figure 4 is a sectional view similar to that of Figure 3 of the stamping press in the closed position. DETAILED DESCRIPTION OF THE INVENTION With reference to the figures, the stamping press comprises, in a manner known per se: a fixed lower tool 1; a movable upper tool 2 comprising retaining cavities 3 equipped at their upper end with a rubber buffer 4; a movable upper frame 5 in which are embedded recessed pins 6 which extend into the cavities 3 and rest on the underside of the damping pads 4 to support the upper tool 2 when the press is opened as shown in Figure 3 In this position a plate 11 can be inserted between the upper tool and the lower tool. Also in known manner the stamping press comprises a not shown pressing member which bears on the upper tool 2 during the closing of the stamping press, to ensure the stamping function itself as illustrated by the According to the invention, the parts 7 of the upper tool 2 comprising the cavities 3 are covered by guide plates 8 each pierced away from the edges of a through hole 9 of a retaining pin 6.
Dans le mode de réalisation préféré illustré, chaque plaque de guidage 8 comporte, sur la face qui est tournée vers le tampon amortisseur 4, un décrochement 10 qui reçoit la partie extrême du tampon amortisseur 4 en recouvrant partiellement la face extrême de celui-ci, c'est à dire à l'exception de la partie inférieure qui reste dégagée et permet ainsi au tampon amortisseur 4 de jouer son rôle de butée pour les broches de retenue 6 lorsque la presse d'emboutissage est ouverte comme illustré par la figure 3. Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications. En particulier, bien que dans le mode de réalisation préféré il soit prévu de recouvrir toutes les cavités de retenue par une plaque de guidage percée, il peut arriver qu'il soit plus avantageux de maintenir une ou plusieurs plaques de guidage séparées de la cavité de retenue correspondante. L'invention concerne donc une presse dont au moins une partie entourant une cavité de retenue est recouverte d'une plaque de guidage percée d'un orifice pour le passage d'une broche de retenue. Bien que l'invention ait été décrite avec des plaques de guidage recouvrant partiellement le tampon amortisseur 4, on peut réaliser la presse d'emboutissage selon l'invention en prévoyant des orifices de passage 9 laissant l'extrémité des tampons amortisseur 4 totalement dégagée. Dans ce cas, la surface de guidage est toutefois inutilement réduite. In the preferred embodiment illustrated, each guide plate 8 comprises, on the side facing the damping pad 4, a recess 10 which receives the end portion of the damping pad 4 by partially covering the end face thereof, that is to say with the exception of the lower part which remains unobstructed and thus allows the damping pad 4 to play its role of abutment for the retaining pins 6 when the stamping press is open as shown in Figure 3. Naturally, the invention is not limited to the embodiment described and alternative embodiments can be made without departing from the scope of the invention as defined by the claims. In particular, although in the preferred embodiment it is intended to cover all the holding cavities by a pierced guide plate, it may happen that it is more advantageous to maintain one or more guide plates separated from the cavity of corresponding deduction. The invention therefore relates to a press of which at least a portion surrounding a retaining cavity is covered with a guide plate pierced with an orifice for the passage of a retaining pin. Although the invention has been described with guide plates partially covering the damping pad 4, the stamping press according to the invention can be produced by providing through holes 9 leaving the end of the damping pads 4 completely free. In this case, however, the guide surface is unnecessarily reduced.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1155057A FR2976198B1 (en) | 2011-06-09 | 2011-06-09 | BINDING PRESS, IN PARTICULAR FOR THE BINDING OF TOLERIE PARTS OF MOTOR VEHICLES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1155057A FR2976198B1 (en) | 2011-06-09 | 2011-06-09 | BINDING PRESS, IN PARTICULAR FOR THE BINDING OF TOLERIE PARTS OF MOTOR VEHICLES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2976198A1 true FR2976198A1 (en) | 2012-12-14 |
FR2976198B1 FR2976198B1 (en) | 2013-07-05 |
Family
ID=44503956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1155057A Active FR2976198B1 (en) | 2011-06-09 | 2011-06-09 | BINDING PRESS, IN PARTICULAR FOR THE BINDING OF TOLERIE PARTS OF MOTOR VEHICLES |
Country Status (1)
Country | Link |
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FR (1) | FR2976198B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103736863A (en) * | 2014-01-27 | 2014-04-23 | 苏州卡波尔模具科技有限公司 | Precision mould |
EP2774698A1 (en) * | 2013-03-08 | 2014-09-10 | Samsung Electronics Co., Ltd. | Press die |
FR3006615A1 (en) * | 2013-06-05 | 2014-12-12 | Peugeot Citroen Automobiles Sa | DEVICE AND METHOD FOR ADJUSTING THE PLAY BETWEEN A CUTTING, LOWERING, OR CALIBRATION BLADE AND A PUNCH OF A PRESS |
FR3019764A1 (en) * | 2014-04-14 | 2015-10-16 | Peugeot Citroen Automobiles Sa | PRESS TOOLING WITH CENTRAL PRESS RETENTION DEVICE. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09271856A (en) * | 1996-04-08 | 1997-10-21 | Kanto Auto Works Ltd | Press-forming die |
DE102006020000B3 (en) * | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Method for producing low-spring half shells |
FR2943563A1 (en) * | 2009-03-24 | 2010-10-01 | Peugeot Citroen Automobiles Sa | PRESS TOOLS FOR TWO-SIDED SURFACE SINGING AND LIFT IN ONE OPERATION |
-
2011
- 2011-06-09 FR FR1155057A patent/FR2976198B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09271856A (en) * | 1996-04-08 | 1997-10-21 | Kanto Auto Works Ltd | Press-forming die |
DE102006020000B3 (en) * | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Method for producing low-spring half shells |
FR2943563A1 (en) * | 2009-03-24 | 2010-10-01 | Peugeot Citroen Automobiles Sa | PRESS TOOLS FOR TWO-SIDED SURFACE SINGING AND LIFT IN ONE OPERATION |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2774698A1 (en) * | 2013-03-08 | 2014-09-10 | Samsung Electronics Co., Ltd. | Press die |
FR3006615A1 (en) * | 2013-06-05 | 2014-12-12 | Peugeot Citroen Automobiles Sa | DEVICE AND METHOD FOR ADJUSTING THE PLAY BETWEEN A CUTTING, LOWERING, OR CALIBRATION BLADE AND A PUNCH OF A PRESS |
CN103736863A (en) * | 2014-01-27 | 2014-04-23 | 苏州卡波尔模具科技有限公司 | Precision mould |
FR3019764A1 (en) * | 2014-04-14 | 2015-10-16 | Peugeot Citroen Automobiles Sa | PRESS TOOLING WITH CENTRAL PRESS RETENTION DEVICE. |
Also Published As
Publication number | Publication date |
---|---|
FR2976198B1 (en) | 2013-07-05 |
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Legal Events
Date | Code | Title | Description |
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PLFP | Fee payment |
Year of fee payment: 6 |
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PLFP | Fee payment |
Year of fee payment: 7 |
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PLFP | Fee payment |
Year of fee payment: 8 |
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CA | Change of address |
Effective date: 20180312 |
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CD | Change of name or company name |
Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
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PLFP | Fee payment |
Year of fee payment: 10 |
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PLFP | Fee payment |
Year of fee payment: 11 |
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PLFP | Fee payment |
Year of fee payment: 12 |
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PLFP | Fee payment |
Year of fee payment: 13 |
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CD | Change of name or company name |
Owner name: STELLANTIS AUTO SAS, FR Effective date: 20240423 |