EP0363251A1 - Quick tool-mounting system for presses of 20 to 200 tons - Google Patents
Quick tool-mounting system for presses of 20 to 200 tons Download PDFInfo
- Publication number
- EP0363251A1 EP0363251A1 EP89402621A EP89402621A EP0363251A1 EP 0363251 A1 EP0363251 A1 EP 0363251A1 EP 89402621 A EP89402621 A EP 89402621A EP 89402621 A EP89402621 A EP 89402621A EP 0363251 A1 EP0363251 A1 EP 0363251A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- version
- press
- tool
- slide
- regards
- 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.)
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
Definitions
- the invention relates to a device for positioning and clamping press tools (cutting, bending, stamping), provided by a pneumatic system with positive security allowing a reduction in assembly times.
- the present invention aims to adapt these improvements to larger presses (version B, version C and version D).
- Version B in terms of functionality, is strictly identical to version A in the upper and lower parts.
- the device has a single difference in the upper part: it consists of two holding pins, joined by a lifting beam instead of a single central pin in version A, thus allowing the passage, in vertical, of a rod positive ejection through the nose.
- Version C in terms of functionality, is strictly identical to versions A and B in the upper part, characterized by the absence of a nose due to the design of larger machines that do not have this type of equipment. the upper part is then held by four spindles (2 + 2 on either side of the machine axis), each spindle unit works in an identical manner to descriptions A and B.
- Version D in terms of functionality, is identical to versions A, B and C with regard to the lower mechanism.
- the upper part is characterized by two blades of sufficient section, placed on either side of the slide, in a frontal or lateral manner depending on the type of machine.
- These blades are articulated on supports fixed on either side of the slide and are inserted in staggered rows in a niche of the opposite support.
- Plate 1 / 5B represents, in section, the device according to the invention as regards version B.
- This version is fitted at the end of cylinder 1 (1) with a lifting beam (2) having two 12 mm diameter pins in rectified hardened steel which locks the nose on either side of its outside diameter, thus allowing the passage in the vertical direction, through the nose, of a positive ejection rod.
- This locking action is triggered simultaneously when the jack n ° 1 (1) empties of the air which contains after the closing of the electrical contactor fixed on the slide (3) of the press coming into contact with the tool upper sole.
- This has the effect of allowing the spring located on the locking pin to relax and thus lock in a positive and safe way, in instantaneous time, the nose of the tool in its machine housing, thus completing the clamping of the aforementioned tool in the upper part.
- Plate 2 / 5C represents, in section, the device according to the invention as regards version C.
- Plate 3 / 5C represents a view along F1 of the same version C.
- each spindle unit operates identically to descriptions A and B, but whose mechanism in groups of two is integral with a mechanical assembly made up of marks 1 and 2 on the board 2 / 5C and permanently fixed under the press slide (3).
- This locking action is triggered simultaneously when the four cylinders empty of the air they contain following the closing of an electrical contactor fixed on the press slide (3) coming into contact with the upper sole of d tool, which has the effect of allowing the springs located on the locking pins to relax and lock in a positive and secure way, in instantaneous time, by penetrating horizontally into the upper sole of the tool, thus ending the clamping of the above-mentioned tool in the upper part.
- Plate 4 / 5D represents, in section, the device according to the invention in that which concerns version D.
- Plate 5 / 5D represents a view along F3 of the same version D.
- This version is provided, in the upper part, with two blades articulated on supports fixed on either side of the slide. These blades have an angular travel of 25 mm, actuated by two pneumatic single acting cylinders. This movement, when the air no longer feeds the cylinders, folds the blades into their slot and comes to fit in a groove in the upper tool sole, keeping the latter tightly pressed against the press slide (locked position). When air is admitted into the cylinders, the blade pivots and escapes from the groove of the tool and its slot, freeing the upper part of the tool (unlocked position). Precise centering of the upper part of the tool is ensured by two balusters attached to the cylinder holders fixed to the upper part of the press.
- Locking is effected by an electrical contactor fixed in the upper part, which closes when the slider comes to bottom dead center and in contact with the upper sole. Unlocking is carried out by putting the slider in bottom dead center and by expelling the air from the cylinders by command from the cabinet inverter.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
L'invention concerne un dispositif de mise en place et de bridage des outils de presse (découpe, cambrage, emboutissage), assuré par un système pneumatique doté d'une sécurité positive permettant une réduction des temps de montage.The invention relates to a device for positioning and clamping press tools (cutting, bending, stamping), provided by a pneumatic system with positive security allowing a reduction in assembly times.
Les systèmes existants à ce jour font appel au principe hydraulique, ce qui nécessite l'adjonction sur la machine d'une centrale hydraulique (pompe, bâche, vérin hydraulique) dont l'investissement est élevé à l'achat et à l'entretien.The existing systems to date use the hydraulic principle, which requires the addition on the machine of a hydraulic unit (pump, tarpaulin, hydraulic cylinder) whose investment is high at purchase and maintenance.
Le système présenté ne fait appel qu'à un réseau d'air comprimé (classique dans les ateliers de presse). Toutes les servitudes sont groupées dans une petite armoire (installation électrique, commutateur, voyant, électro-vanne) et un système mécanique fonctionnel de trois vérins: 2 simple effet et 2 double effet, l'un assurant le verrouillage. La sécurité positive (en cas de coupure électrique ou de rupture de canalisation d'air) est assurée par un vérin simple effet.The system presented only uses a compressed air network (classic in press workshops). All easements are grouped in a small cabinet (electrical installation, switch, indicator, solenoid valve) and a functional mechanical system of three cylinders: 2 single acting and 2 double acting, one ensuring locking. Positive safety (in the event of a power cut or an air line rupture) is ensured by a single-acting cylinder.
Le système présenté a déjà fait l'objet d'un premier brevet N° 88 401309.5 du 27 mai 1988 en ce qui concerne une première version (version A).The system presented has already been the subject of a first patent No. 88 401309.5 of May 27, 1988 with regard to a first version (version A).
La présente invention a pour but d'adapter ces améliorations à des presses plus importantes (version B, version C et version D).The present invention aims to adapt these improvements to larger presses (version B, version C and version D).
La version B, sur le plan de la fonctionnalité, est strictement identique à la version A en partie supérieure et inférieure. Le dispositif possède une unique différence en partie supérieure: il est constitué par deux broches de maintien, solidarisées par un palonnier en lieu et place d'une seule broche centrale en version A, permettant ainsi le passage, en verticale, d'une tige d'éjection positive au travers du nez.Version B, in terms of functionality, is strictly identical to version A in the upper and lower parts. The device has a single difference in the upper part: it consists of two holding pins, joined by a lifting beam instead of a single central pin in version A, thus allowing the passage, in vertical, of a rod positive ejection through the nose.
La version C, sur le plan de la fonctionnalité,est strictement identique aux versions A et B en partie supérieure, caractérisée par l'absence de nez due à la conception de machines plus importantes ne possédant pas ce type d'équipement. le maintien en partie supérieure est alors assuré par quatre broches (2 + 2 de part et d'autre de l'axe de la machine), chaque unité de broche fontionne d'une façon identique aux descriptions A et B.Version C, in terms of functionality, is strictly identical to versions A and B in the upper part, characterized by the absence of a nose due to the design of larger machines that do not have this type of equipment. the upper part is then held by four spindles (2 + 2 on either side of the machine axis), each spindle unit works in an identical manner to descriptions A and B.
La version D, sur le plan de la fonctionnalité, est identique aux versions A, B et C en ce qui concerne le mécanisme inférieur. La partie supérieure se caractérisé par deux lames de section suffisante, placées de part et d'autre du coulisseau, d'une façon frontale ou latérale suivant le type de machine.Version D, in terms of functionality, is identical to versions A, B and C with regard to the lower mechanism. The upper part is characterized by two blades of sufficient section, placed on either side of the slide, in a frontal or lateral manner depending on the type of machine.
Ces lames, au nombre de deux, sont articulées sur des supports fixés de part et d'autre du coulisseau et s'intercalent en quinconce dans un créneau du support opposé.These blades, two in number, are articulated on supports fixed on either side of the slide and are inserted in staggered rows in a niche of the opposite support.
La planche 1/5B représente, en coupe, le dispositif selon l'invention en ce qui concerne la version B.
Cette version est dotée à l'extrémité du vérin n° 1 (1) d'un palonnier (2) possédant deux broches de 12 mm de diamètre en acier trempé rectifié qui verrouille le nez de part et d'autre de son diamètre extérieur, permettant ainsi le passage dans le sens vertical, au travers du nez, d'une tige d'éjection positive. Cette action de verrouillage se déclenche simultanément lorsque le vérin n° 1 (1) se vide de l'air qui'l contient à la suite de la fermeture du contacteur électrique fixé sur le coulisseau (3) de la presse venant au contact de la semelle supérieur d'outil. Ce qui a pour effet de permettre au ressort situé sur la broche de verrouillage de se détendre et de verrouiller ainsi d'une façon positive et sûre, en temps instantané, le nez de l'outil dans son logement machine, terminant ainsi le bridage de l'outil précité en partie supérieure.This version is fitted at the end of cylinder 1 (1) with a lifting beam (2) having two 12 mm diameter pins in rectified hardened steel which locks the nose on either side of its outside diameter, thus allowing the passage in the vertical direction, through the nose, of a positive ejection rod. This locking action is triggered simultaneously when the jack n ° 1 (1) empties of the air which contains after the closing of the electrical contactor fixed on the slide (3) of the press coming into contact with the tool upper sole. This has the effect of allowing the spring located on the locking pin to relax and thus lock in a positive and safe way, in instantaneous time, the nose of the tool in its machine housing, thus completing the clamping of the aforementioned tool in the upper part.
La planche 2/5C représente, en coupe, le dispositif selon l'invention en ce qui concerne la version C.
La planche 3/5C représente une vue suivant F1 de la même version C.
Lorsque la presse n'est pas équipée d'un nez en partie supérieure, le système de verrouillage est identique aux versions A et B dans le principe de fonctionnement. le maintien positif et sûr de la semelle supérieure d'outil sur le coulisseau (3) de la presse est alors assuré par quatre broches de 20 mm de diamètre en acier trempé rectifié (2 + 2) de part et d'autre de l'axe de symétrie de la machine), chaque unité de broche fonctionne de façon identique aux descriptions A et B, mais dont le mécanisme par groupe de deux est solidaire d'un ensemble mécanique composé des repères 1 et 2 sur la planche 2/5C et fixé à demeure sous le coulisseau (3) de la presse. Cette action de verrouillage se déclenche simultanément lorsque les quatre vérins se vident de l'air qu'ils contiennent à la suite de la fermeture d'un contacteur électrique fixé sur le coulisseau (3) de la presse venant au contact de la semelle supérieure d'outil, ce qui a pour effet de permettre aux ressorts situés sur les broches de verrouillage de se détendre et de verrouiller d'une façon positive et sûre, en temps instantané, en pénétrant horizontalement dans la semelle supérieure de l'outil, terminant ainsi le bridage de l'outil précité en partie supérieure.When the press is not equipped with a nose at the top, the locking system is identical to versions A and B in principle. positive and secure maintenance of the upper tool sole on the press slide (3) is then ensured by four pins of 20 mm diameter in hardened rectified steel (2 + 2) on either side of the axis of symmetry of the machine), each spindle unit operates identically to descriptions A and B, but whose mechanism in groups of two is integral with a mechanical assembly made up of
La planche 4/5D représente, en coupe, le dispositif selon l'invention en ce qui concerne la version D.
La planche 5/5D représente une vue suivant F3 de la même version D.Plate 4 / 5D represents, in section, the device according to the invention in that which concerns version D.
Cette version est dotée, en partie supérieure, de deux lames articulées sur des supports fixés de part et d'autre du coulisseau. Ces lames ont un débattement angulaire de 25 mm, actionné par deux vérins pneumatiques simple effet. Ce débattement, lorsque l'air n'alimente plus les vérins, rabat les lames dans leur créneau et vient s ajuster dans une rainure de la semelle supérieure d'outil, maintenant cette dernière étroitement plaquée au coulisseau de la presse (position verrouillée). Lorsque l'air est admis dans les vérins, la lame pivote et échappe de la rainure de l'outil et de son créneau, libérant la partie supérieure d'outil (position déverrouillée). Le centrage précis de la partie supérieure d'outil est assuré par deux colonnettes solidaires des porte-vérins fixés à la partie supérieure de la presse. Le verrouillage s'effectue par un contacteur électrique fixé en partie supérieure, qui se ferme lorsque le coulisseau arrive au point mort bas et au contact de la semelle supérieure. Le déverrouillage s'effectue en mettant le coulisseau au point mort bas et en expulsant l'air des vérins par commande de l'inverseur de l'armoire.This version is provided, in the upper part, with two blades articulated on supports fixed on either side of the slide. These blades have an angular travel of 25 mm, actuated by two pneumatic single acting cylinders. This movement, when the air no longer feeds the cylinders, folds the blades into their slot and comes to fit in a groove in the upper tool sole, keeping the latter tightly pressed against the press slide (locked position). When air is admitted into the cylinders, the blade pivots and escapes from the groove of the tool and its slot, freeing the upper part of the tool (unlocked position). Precise centering of the upper part of the tool is ensured by two balusters attached to the cylinder holders fixed to the upper part of the press. Locking is effected by an electrical contactor fixed in the upper part, which closes when the slider comes to bottom dead center and in contact with the upper sole. Unlocking is carried out by putting the slider in bottom dead center and by expelling the air from the cylinders by command from the cabinet inverter.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8812732A FR2636868B2 (en) | 1987-06-09 | 1988-09-29 | QUICK MOUNTING TOOL SYSTEM FOR PRESSES FROM 20 TO 200 TONS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0363251A1 true EP0363251A1 (en) | 1990-04-11 |
Family
ID=9370524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89402621A Withdrawn EP0363251A1 (en) | 1988-09-29 | 1989-09-25 | Quick tool-mounting system for presses of 20 to 200 tons |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0363251A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582357A1 (en) * | 1992-08-04 | 1994-02-09 | Lawrence Paper Company | Quick changeover die clamping apparatus for platen die-cutting machines |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1075278A (en) * | 1952-12-03 | 1954-10-14 | Improvements made to processes and devices for carrying out a complete work cycle on presses and machines or the like | |
| US2913946A (en) * | 1956-08-22 | 1959-11-24 | Philco Corp | Die handling mechanism for facilitating insertion and removal thereof in presses |
| US2984176A (en) * | 1957-05-15 | 1961-05-16 | Us Industries Inc | Die clamp |
| US2984880A (en) * | 1957-01-16 | 1961-05-23 | Danly Mach Specialties Inc | Readily releasable clamping assembly |
| FR1276006A (en) * | 1959-07-08 | 1961-11-17 | Bliss E W Co | Locking device for punch or tool holder |
| US3327575A (en) * | 1965-03-17 | 1967-06-27 | Minster Machine Co | Quick change fixture |
| DE2900526A1 (en) * | 1978-07-15 | 1980-01-24 | Aida Eng Ltd | gang press with automatic tool change |
| US4598574A (en) * | 1985-05-22 | 1986-07-08 | Prince Corporation | Die clamping device |
-
1989
- 1989-09-25 EP EP89402621A patent/EP0363251A1/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1075278A (en) * | 1952-12-03 | 1954-10-14 | Improvements made to processes and devices for carrying out a complete work cycle on presses and machines or the like | |
| US2913946A (en) * | 1956-08-22 | 1959-11-24 | Philco Corp | Die handling mechanism for facilitating insertion and removal thereof in presses |
| US2984880A (en) * | 1957-01-16 | 1961-05-23 | Danly Mach Specialties Inc | Readily releasable clamping assembly |
| US2984176A (en) * | 1957-05-15 | 1961-05-16 | Us Industries Inc | Die clamp |
| FR1276006A (en) * | 1959-07-08 | 1961-11-17 | Bliss E W Co | Locking device for punch or tool holder |
| US3327575A (en) * | 1965-03-17 | 1967-06-27 | Minster Machine Co | Quick change fixture |
| DE2900526A1 (en) * | 1978-07-15 | 1980-01-24 | Aida Eng Ltd | gang press with automatic tool change |
| US4598574A (en) * | 1985-05-22 | 1986-07-08 | Prince Corporation | Die clamping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582357A1 (en) * | 1992-08-04 | 1994-02-09 | Lawrence Paper Company | Quick changeover die clamping apparatus for platen die-cutting machines |
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| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AK | Designated contracting states |
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| 17P | Request for examination filed |
Effective date: 19900515 |
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| 17Q | First examination report despatched |
Effective date: 19921021 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 19930302 |