EP0997208A1 - Werkstücktransfervorrichtung zwischen zwei Arbeitsstationen eines Pressenwerkzeuges - Google Patents

Werkstücktransfervorrichtung zwischen zwei Arbeitsstationen eines Pressenwerkzeuges Download PDF

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Publication number
EP0997208A1
EP0997208A1 EP99402577A EP99402577A EP0997208A1 EP 0997208 A1 EP0997208 A1 EP 0997208A1 EP 99402577 A EP99402577 A EP 99402577A EP 99402577 A EP99402577 A EP 99402577A EP 0997208 A1 EP0997208 A1 EP 0997208A1
Authority
EP
European Patent Office
Prior art keywords
press
gripping
tool
support means
support
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Withdrawn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
EP99402577A
Other languages
English (en)
French (fr)
Inventor
Jacques Morel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0997208A1 publication Critical patent/EP0997208A1/de
Withdrawn legal-status Critical Current

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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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers

Definitions

  • the invention relates to a device for transferring a part between two stations of a tool mounted on a press, especially intended for the manufacture of body parts.
  • such a part can be produced at from a flat side, with a range of tools mounted on a press line.
  • a tool is assigned to each press. Transfer of parts from one press to another can in particular be carried out by robots.
  • Another concept consists in providing, on the same press equipped with a single tool, several workstations. Robots can also be provided to transfer the part being manufactured from one press to another.
  • This device mechanized for a multi-station press equipped with a tool given.
  • This device has two transfer bars arranged substantially parallel, outside two opposite sides of the press. Gripping systems are fixed, irremovably, on these bars and are arranged opposite.
  • the transfer bars are also very long to be able to supply the parts and evacuate them from the hurry.
  • This transfer device also includes a bar control system for transfer from one room from one station to another.
  • control system brings everything closer first the bars so that the gripping systems come into contact with the part after it has been lifted perpendicular to the plane of the press. He them then move to the other station.
  • the system of command finally causes the spacing of the transfer bars after the part has been placed on the other station.
  • the movement of lifting and lowering of the pieces can be done not by the bars themselves, but by a specific element of the slide type provided in the tool himself.
  • the transfer of a part during the manufacture of a post to another is therefore carried out thanks to at least two movements along perpendicular axes.
  • This mechanized transfer device includes many disadvantages.
  • each transfer device must be suitable for the tool mounted on the press and therefore for the type of parts to be manufactured.
  • the gripping systems of pieces are specific to each type of piece.
  • the invention aims to overcome these drawbacks by offering a device for transferring a part between two press tool stations, this device being easily adaptable to said tool and to the number of stations of said tool, less bulky and able to equip a tool used in a press line.
  • the invention therefore relates to a transfer device of a part between two stations of a press tool, arranged according to a first direction of the press, the device comprising means for gripping said part, support means for gripping means arranged on the side and other press stations to expand according said first direction, as well as means for moving said gripping means according to at least said first direction and a second direction substantially perpendicular to the first direction, characterized in that the displacement of said gripping means and said support means in said second direction, towards / or at away from said positions, is controlled by the tool, and in this that the gripping means are mounted movable on said support means in the first direction.
  • said support means are connected to cylinders and the tool comprises at least one cam which moves in another direction, substantially perpendicular to the first and second directions, for act on said cylinders and thus control the movement of support means in the second direction.
  • said jacks are of the constant pressure type and fixed on said tool, the movable part of the jacks being connected to said means of support, the lowering of the cams towards said part causing the recoil of the mobile part of the cylinders, means of support as well as gripping means, relative at said posts, while the rise of said cams away of said part causes the moving part of the cylinders, support means as well as means of gripping, towards said posts.
  • At least two jacks are associated with each support means.
  • the support means are advantageously mounted sliding on guide means fixed on a base of the tool.
  • the transfer device according to the invention comprises at least one double pneumatic cylinder effect to ensure the movement of the gripping means with respect to said support means, according to said first direction.
  • Each gripping means is advantageously connected to a pneumatic cylinder associated with a support means and extending in the first direction.
  • connection between each gripping means and a pneumatic cylinder associated is achieved by means of a coach.
  • each means of grip is slidably mounted on a extending element in the first direction and associated with a support means, displacement in the first direction of each means of gripping being provided by a cable system, said cable systems being controlled by a single cylinder pneumatic.
  • the means for gripping the transfer device according to the invention are mounted removably on said support means, to be able adapt them to the type of parts produced by said tool of the press and the number of stations provided in said tool of the hurry.
  • each means of gripping comprises an arm intended to be mounted on a means support and ending with a forming element substantially a T with said arm, said element supporting clamps or the like to be able to take said piece.
  • this comprises means arranged in the lower part of the tool to print at said part moving in said other direction, substantially perpendicular to said first and second directions and so extract it from said bottom or position it in this lower part.
  • Figures 1a and 1b illustrate an example of a transfer device according to the invention which equips a press tool comprising two stations 1 and 2, arranged in a first direction A of the hurry.
  • the transfer device includes means for gripping 10, each of them being mounted on a means of support 20, these support means 20 being arranged so symmetrical, on both sides of stations 1 and 2.
  • These support means extend in the first direction A of the press, while the gripping means 10 extend in a second direction B of the press, substantially perpendicular to the first direction A and located in the press plan.
  • Direction A can correspond to direction transverse press and direction B to direction longitudinal of the press.
  • each support means 20 On either side of each support means 20, is provided with a jack 21, 22.
  • the fixed part 21a, 22a of the jacks 21,22 is connected to a fixed part of the press tool, by example in support 3.
  • the movable part 21b, 22b of the jacks 21 and 22 is, meanwhile, connected to a support means 20 by any means appropriate 29.
  • the jacks 21, 22 are of the gas jack type and their moving part therefore exerts a constant thrust towards stations 1 and 2, on the support means 20 which are movable mounted on the lower part of the press tool.
  • each gripping means 10 is mounted mobile on a support means 20, according to the first direction A of the press.
  • the support means 20 include means 23 to ensure movement according to the direction A gripping means 10.
  • these means of displacement 23 are constituted by a pneumatic cylinder with double effect.
  • Figure 1b also partially illustrates the part upper 4 of the tool mounted on the press slide (not shown), which is used to work the part in the hurry.
  • the upper part of the tool also has a cam system.
  • this system comprises a group of two cams 5, extending along the first direction A, the cams of each group being arranged opposite in the second direction B of the hurry.
  • this cam system is adjusted in relation to the movements of the press tool, so as to coordinate the movements caused by the transfer device according to the invention with movement of the press slide.
  • each gripping means 10 is produced by means a coach 15.
  • Figures 1a and 1b illustrate the first step of a cycle of production of a part in the press.
  • the piece to be stamped was loaded on station 1 as shown in Figure 1a, the upper part 4 of the tool the press is at the bottom of the race.
  • the tool comprising the upper part 4 formed by the punch (not illustrated) secured to the press slide and the die fixed on the lower frame of the tool is closed.
  • Cams 5 are ordered to also be in low position. They then come into contact with each support means 20 and push the movable part 21b, 22b, cylinders 21 and 22 in the fixed part 21a, 22a of these cylinders.
  • the movement of the moving parts 21b and 22b of the cylinders drives the support means 20 as well as the means of gripping 10 also in direction B of the press, to station 1.
  • the support means move in pairs ends on the base 6 carried by the table 3 of the tool.
  • This base supports guide means 6b.
  • a stop 6a is provided on the base 6 to limit the movement of support means.
  • the gripping means thus ensure the imprisonment of the piece on post 1, which was at previous lifted in a direction perpendicular to the plane press to extract it from the tool die.
  • these means gripping in this embodiment include a arm 11 which is directly connected to the support means 20.
  • This arm 11 ends with an element 12 forming substantially a T with the arm 11.
  • This element 12 which extends in the direction A, has a length adapted to the dimensions of the room carried out by the press.
  • gripping elements 13 such as pliers or the like which are also suitable for the part to be gripped.
  • the previous part on the post 2 is complete and can be extracted from the press, in particular by means of a robot.
  • the gripping means 10 are moved relative to their support means 20, in the first direction A of the press.
  • This movement in direction A is carried out, in the example illustrated in FIGS. 1a to 5b, by a jack tire 23 associated with each support means 20.
  • the cylinders 23 are of the double-acting type.
  • the transfer device according to the invention does not generate no movement.
  • Cams 5 are also lowered and act on the moving parts 21b and 22b of the jacks 21 and 22 for the push back into the fixed parts of the cylinders, away from the post 2.
  • This movement of the movable parts of the cylinders causes the support means 20 such as the gripping means 10, in the second direction B, away from station 2.
  • the support means slide on the bases 6, thanks to the aforementioned guide means.
  • the tool is closed at station 2 and the means of gripping 10 are moved in direction A towards the station 1, by means of pneumatic cylinders 23.
  • the transfer device according to the invention is located then in the position illustrated in Figures 1a and 1b. A new part production cycle can then be executed.
  • FIGS 6a and 6b illustrate an alternative embodiment of the system gripping means 10, according to the direction A of the press.
  • each support means 20 are replaced by a cable system fixed by means of gripping 10 mounted sliding, in a sheath fixed on the means of support 20 in direction A.
  • each arm 11 is associated with a cable system and sheath 25, 26. Both cable and sheath systems are connected to the same pneumatic cylinder 27.
  • the cylinder 27 is of the double acting pneumatic type and it is mounted on a plate 28 linked to the lower part of the tool.
  • This jack 27 ensures the movement of each cable 25a, 26a inside its sheath 25b, 26b.
  • Figures 7a and 7b illustrate means for lifting a workpiece from the die of the tool, so that it can be transferred from one station to another other, or from the press to the outside.
  • Figure 7b is a partial sectional view of the lower part of the tool.
  • Reference 7 designates the lower part of the tool.
  • These means comprise at least one element 30 which passes through the lower part of the tool 7, substantially perpendicular to the plane thereof.
  • FIG. 7b the part 30 is illustrated in position high, corresponding to the extraction of the part from the lower part of the tool 7.
  • the means of moving the part may include several elements 30, in general 2 or 3.
  • the element 30 is controlled by a cable 31 which is not illustrated only partially in Figure 7.
  • This cable is driven by means of a jack 32.
  • This jack 32 supports a plate 33 on which can to be fixed several cables, so as to control others elements 30 which are not illustrated in the figures.
  • FIG. 7a partially illustrates another cable 31a intended for another element 30.
  • the jack 32 In the position illustrated in solid lines in the figure 7b, the jack 32 is in a first extreme position in which the cable 31 presses on the part 30 which is in position high.
  • Figure 7b illustrates in dotted lines the other extreme position of the jack 33. In this position, the cable 31 is pulled out and part 30 is in the low position (not illustrated in the figures).
  • Moving a part in a perpendicular plane in terms of the press can be achieved by any other means appropriate.
  • the tool may include more than two posts.
  • the gripping means 10 are mounted removably on the support means 20.
  • the plug elements 13 it just modify the plug elements 13 to be able to adapt the transfer device according to the invention to parts to be produced as well as the number of stations provided in the hurry.
  • the size of the support means 20 corresponds substantially to that of the press and the device transfer according to the invention therefore generates no additional space.
  • pneumatic cylinders can be connected to standard air inlets available on the press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP99402577A 1998-10-26 1999-10-19 Werkstücktransfervorrichtung zwischen zwei Arbeitsstationen eines Pressenwerkzeuges Withdrawn EP0997208A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9813369 1998-10-26
FR9813369A FR2784915B1 (fr) 1998-10-26 1998-10-26 Dispositif de transfert d'une piece entre deux postes d'un outil d'une presse

Publications (1)

Publication Number Publication Date
EP0997208A1 true EP0997208A1 (de) 2000-05-03

Family

ID=9531965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402577A Withdrawn EP0997208A1 (de) 1998-10-26 1999-10-19 Werkstücktransfervorrichtung zwischen zwei Arbeitsstationen eines Pressenwerkzeuges

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Country Link
EP (1) EP0997208A1 (de)
FR (1) FR2784915B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1477247A1 (de) * 2003-04-27 2004-11-17 Trindade de Sousa Monteiro, Luciano Modulare Vorschubeinrichtung mit rechtwinkligerer Einstellung der Vorschubrichtung
DE102008038265A1 (de) * 2008-08-15 2010-02-25 H & T Produktions Technologie Gmbh Transfereinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112935180B (zh) * 2021-01-20 2022-10-04 浙江洪扬汽车零部件有限公司 一种高速螺母成型机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0202882A2 (de) * 1985-05-17 1986-11-26 Avondale Industries, Inc. Transfervorrichtung für Pressen
GB2243134A (en) * 1990-04-19 1991-10-23 Honda Motor Co Ltd Transfering apparatus for a transfer press
EP0504098A1 (de) * 1991-03-15 1992-09-16 STYNER & BIENZ AG Transferanordnung an einer Presse
EP0694349A1 (de) * 1994-07-25 1996-01-31 Livernois Research & Development Company Modulares Transport-System
DE19506079A1 (de) * 1995-02-22 1996-08-29 Schuler Pressen Gmbh & Co Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen
EP0773077A1 (de) * 1995-11-13 1997-05-14 SCHULER PRESSEN GmbH & Co. Presse mit kombinierter Transfereinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0202882A2 (de) * 1985-05-17 1986-11-26 Avondale Industries, Inc. Transfervorrichtung für Pressen
GB2243134A (en) * 1990-04-19 1991-10-23 Honda Motor Co Ltd Transfering apparatus for a transfer press
EP0504098A1 (de) * 1991-03-15 1992-09-16 STYNER & BIENZ AG Transferanordnung an einer Presse
EP0694349A1 (de) * 1994-07-25 1996-01-31 Livernois Research & Development Company Modulares Transport-System
DE19506079A1 (de) * 1995-02-22 1996-08-29 Schuler Pressen Gmbh & Co Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen
EP0773077A1 (de) * 1995-11-13 1997-05-14 SCHULER PRESSEN GmbH & Co. Presse mit kombinierter Transfereinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1477247A1 (de) * 2003-04-27 2004-11-17 Trindade de Sousa Monteiro, Luciano Modulare Vorschubeinrichtung mit rechtwinkligerer Einstellung der Vorschubrichtung
DE102008038265A1 (de) * 2008-08-15 2010-02-25 H & T Produktions Technologie Gmbh Transfereinrichtung
DE102008038265B4 (de) * 2008-08-15 2014-09-11 H & T Produktions Technologie Gmbh Transfereinrichtung

Also Published As

Publication number Publication date
FR2784915B1 (fr) 2001-01-26
FR2784915A1 (fr) 2000-04-28

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