EP0576928A1 - Press installation with longitudinal bolsters - Google Patents

Press installation with longitudinal bolsters Download PDF

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Publication number
EP0576928A1
EP0576928A1 EP93109675A EP93109675A EP0576928A1 EP 0576928 A1 EP0576928 A1 EP 0576928A1 EP 93109675 A EP93109675 A EP 93109675A EP 93109675 A EP93109675 A EP 93109675A EP 0576928 A1 EP0576928 A1 EP 0576928A1
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EP
European Patent Office
Prior art keywords
press
rams
longitudinal
longitudinal cross
stands
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
Application number
EP93109675A
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German (de)
French (fr)
Other versions
EP0576928B1 (en
Inventor
Wolfgang Michael
Kurt Strommer
Hans Hoffle
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L Schuler GmbH
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L Schuler GmbH
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Filing date
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Publication of EP0576928A1 publication Critical patent/EP0576928A1/en
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Publication of EP0576928B1 publication Critical patent/EP0576928B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D37/08—Dies with different parts for several steps in a process
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides

Definitions

  • the invention relates to a press system according to the preamble of claim 1.
  • Press systems of the types mentioned serve the forming of sheet metal parts in a first working stage designed as a drawing stage and further working stages following the drawing stage.
  • the shaping takes place under very high forces, which are applied by the drive elements, must be transferred from the rams and the upper tool parts to the sheet metal parts and lower tool parts and press table and must be absorbed by the press frame as a whole.
  • uneven deformations on the workpiece lead to eccentric loads on tools and rams.
  • DE 33 22 377 C2 describes a press frame of a mechanically driven large-part step press in which cross members are individual components of the press stand. There are two head pieces for receiving the drive means for two rams, which are supported on the press stands or their cross members, and two press tables. The press is therefore not a uniform, static whole. The plungers can be moved up and down in guides in the stand areas on the crossbeams. The work area is interrupted by press stands.
  • the cost-effective design of the press system with increased stability is particularly advantageous here.
  • the increased stability leads to a significant simplification of the drive in the transfer movement.
  • the press system shown in the figures has a drawing stage 1 and working stages 2. With 3 press stands are positioned, which are set up on the press foundation 17 via press cross members 4. A press table 5 rests on the crossbeams 4 of the press, which are located in front of and behind the work stages 2, seen in the longitudinal direction of the press. It is possible to place the press stand 3 on the press crossbeams 4 with the press table 5 in between. Longitudinal cross members 9 are placed on the press stands 3, which extend at least over the entire area of the working stages 2 and of which a longitudinal cross member 9 is arranged in front of the rams 11, 12, a longitudinal cross member 9 behind the rams 11, 12, based on FIG. 1. The longitudinal beams can extend over the entire length of the press system.
  • Head pieces 7, 8 are placed on the longitudinal cross members 9; another head piece 6 is assigned to drawing stage 1.
  • the placement of the head pieces 7, 8 and possibly also the head piece 6 leads to a significant improvement in the overall structure of the press system, in particular with regard to stability.
  • Press cross members 4, press stand 3, press table 5, longitudinal cross members 9 and head pieces 7, 8 are clamped to a structural unit by means of tension anchors 10.
  • a rocker arm is positioned, which moves the transfer device 19 with the gripper means or suction means 20 in the sense of a transfer movement for the sheet metal parts (workpieces).
  • the plungers 11, 12 and possibly also the plunger 25 are mounted on the longitudinal cross members so that they can be moved up and down by means of guide means, which are positioned overall at 13.
  • FIG. 1 shows the overall structure of the press system.
  • FIG. 4 shows the mounting of the rams 11, 12 on the longitudinal cross members 9 by means of the guides 13.

Abstract

In a press installation with a press frame consisting of press columns (3), a press table (5) and capping pieces (6, 7, 8), which are rigidly connected to one another by means of tie rods (10), and with rams (11, 12) and a turning device (15, 19, 20), which can be moved by means of driving means (23, 24, 26, 27), longitudinal bolsters (9) extending over the length at least of the work stages (2) are provided. The press columns (3) are arranged in front of and behind the work stages (2) and the longitudinal bolsters (9) are placed on these columns. The longitudinal bolsters (9) are provided with guides (13) which cooperate with guides mounted on the rams (11, 12) to provide support for the up and down movement of the latter. This eliminates columns while providing a sturdy press installation of inexpensive construction. <IMAGE>

Description

Die Erfindung betrifft eine Pressenanlage entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a press system according to the preamble of claim 1.

Pressenanlagen der genannten Arten dienen der Umformung von Blechteilen in einer ersten, als Ziehstufe ausgebildeten Arbeitsstufe und weiteren, der Ziehstufe nachfolgenden Arbeitsstufen. Die Umformung erfolgt unter sehr hohen Kräften, die von den Antriebselementen aufgebracht werden, von den Stößein und den Werkzeugoberteilen auf die Blechteile und Werkzeugunterteile und Pressentisch übertragen und von dem Pressengestell insgesamt aufgefangen werden müssen. Darüber hinaus führen ungleiche Verformungen an dem Werkstück zu außermittigen Belastungen von Werkzeugen und Stößeln.Press systems of the types mentioned serve the forming of sheet metal parts in a first working stage designed as a drawing stage and further working stages following the drawing stage. The shaping takes place under very high forces, which are applied by the drive elements, must be transferred from the rams and the upper tool parts to the sheet metal parts and lower tool parts and press table and must be absorbed by the press frame as a whole. In addition, uneven deformations on the workpiece lead to eccentric loads on tools and rams.

Es ist bekannt (DE-31 43 690 C2; DE-33 28 631 C2), Pressenstößel an den Pressenständern zu führen; eine Maßnahme, die hohe Ansprüche an die Stößelführung und die Gestaltung der Pressenständer stellt.It is known (DE-31 43 690 C2; DE-33 28 631 C2) to guide press rams on the press stands; a measure that places high demands on the ram guide and the design of the press stands.

In der DE 33 22 377 C2 ist ein Pressengestell einer mechanisch angetriebenen Großteil-Stufenpresse beschrieben, bei der Quertraversen Einzelbauteile der Pressenständer sind. Es sind zwei Kopfstücke zur Aufnahme der Antriebsmittel für zwei Stößel vorhanden, die sich auf den Pressenständern bzw. deren Quertraversen abstützen sowie zwei Pressentische. Die Presse ist somit kein einheitliches, statisches Ganzes. Die Stößel sind in den Ständerbereichen an den Quertraversen in Führungen auf- und abbewegbar. Der Arbeitsbereich ist durch Pressenständer unterbrochen.DE 33 22 377 C2 describes a press frame of a mechanically driven large-part step press in which cross members are individual components of the press stand. There are two head pieces for receiving the drive means for two rams, which are supported on the press stands or their cross members, and two press tables. The press is therefore not a uniform, static whole. The plungers can be moved up and down in guides in the stand areas on the crossbeams. The work area is interrupted by press stands.

Demgegenüber ist es Aufgabe der Erfindung, eine stabile und kompakte, insgesamt kürzere Pressenanlage zu schaffen unter Wegfall von Pressenständern sowie Zwischenablagen in mittleren Arbeitsbereichen. Ein weiteres Erfindungsmerkmal besteht darin, daß sich die Kopfstücke auf den beiden Längstraversen abstützen.In contrast, it is an object of the invention to provide a stable and compact, overall shorter press system with the elimination of press stands and intermediate storage in middle work areas. Another feature of the invention is that the head pieces are supported on the two longitudinal cross members.

Diese Aufgabe ist gelöst durch die gegenständlichen Merkmale des Anspruchs 1. Die Merkmale der Ansprüche 2 und 3 stellen für sich erfinderische und vorteilbehaftete Ausbildungen einer Pressenanlage dar.This object is achieved by the objective features of claim 1. The features of claims 2 and 3 represent inventive and advantageous designs of a press system.

Von besonderem Vorteil hierbei ist die kostengünstige Gestaltung der Pressenanlage bei erhöhter Stabilität. Die erhöhte Stabilität führt zu einer wesentlichen Vereinfachung des Antriebes in der Transferbewegung.The cost-effective design of the press system with increased stability is particularly advantageous here. The increased stability leads to a significant simplification of the drive in the transfer movement.

Weitere Vorteile ergeben sich aus der Beschreibung und der Darstellung eines Ausführungsbeispiels.Further advantages result from the description and the representation of an exemplary embodiment.

Die Zeichnung zeigt in:

Fig. 1
den Gesamtaufbau einer Pressenanlage,
Fig. 2
eine Schnittansicht entsprechend dem Schnittverlauf II-II in Fig. 1,
Fig. 3
eine Draufsicht auf die Pressenanlage nach Fig. 1 und
Fig. 4
eine Schnittansicht gemäß dem Schnittverlauf IV-IV in Fig. 1 mit Blick auf Stößel und Längstraversen.
The drawing shows in:
Fig. 1
the overall structure of a press system,
Fig. 2
2 shows a sectional view corresponding to the section line II-II in FIG. 1,
Fig. 3
a plan view of the press system of FIG. 1 and
Fig. 4
a sectional view according to the section IV-IV in Fig. 1 with a view of the plunger and longitudinal beams.

Die in den Figuren gezeigte Pressenanlage weist eine Ziehstufe 1 und Arbeitsstufen 2 auf. Mit 3 sind Pressenständer positioniert, die über Pressenquertraversen 4 auf dem Pressenfundament 17 aufgestellt sind. Auf den Pressenquertraversen 4, die sich vor und hinter den Arbeitsstufen 2, in Längserstreckung der Presse gesehen, befinden, liegt ein Pressentisch 5 auf. Es ist möglich, die Pressenständer 3 unter Zwischenlage des Pressentisches 5 auf den Pressenquertraversen 4 aufzusetzen. Auf den Pressenständern 3 sind Längstraversen 9 aufgesetzt, die sich zumindest über den Gesamtbereich der Arbeitsstufen 2 erstrecken und von denen eine Längstraverse 9 vor den Stößein 11, 12, eine Längstraverse 9 hinter den Stößeln 11, 12, bezogen auf Fig. 1 angeordnet sind. Die Längstraversen können sich über die Gesamtlänge der Pressenanlage erstrecken. Auf den Längstraversen 9 sind Kopfstücke 7, 8 aufgesetzt; ein weiteres Kopfstück 6 ist der Ziehstufe 1 zugeordnet. Das Aufsetzen der Kopfstücke 7, 8 und ggf. auch des Kopfstückes 6 führt zu einer wesentlichen Verbesserung im Gesamtaufhau der Pressenanlage, insbesondere hinsichtlich der Stabilität. Pressenquertraversen 4, Pressenständer 3, Pressentisch 5, Längstraversen 9 und Kopfstücke 7, 8 sind vermittels Spannanker 10 zu einer Baueinheit verspannt. Mit 18 ist ein Schwinghebel positioniert, der die Umsetzeinrichtung 19 mit den Greifermitteln oder Saugermitteln 20 im Sinne einer Umsetzbewegung für die Blechteile (Werkstücke) bewegt. Die Stößel 11, 12 und ggf. auch der Stößel 25, sind über Führungsmittel, die insgesamt mit 13 positioniert sind, an den Längstraversen auf- und abbewegbar gelagert. An den Stößein 11, 12 befinden sich Werkzeugoberteile 14, die mit Werkzeugunterteilen 15 auf einem aus der Pressenanlage herausfahrbaren Schiebetisch 16 zusammenwirken. Die Stößel 11, 12 sowie 25 sind an insgesamt mit 21 positionierten Pleueln aufgehängt, die in Fig. 1 als Strich-Punktlinien angedeutet sind. In Fig. 4 sind die Anlenkpunkte 22 der Pleuel 21 an den Stößein 11, 12 angedeutet. Die Pleuel 21 sind über Motore 26, Schwungrad 27, Hauptwelle 24 und in den Kopfstücken eingebauten Getrieben 23 antreibbar. Während insbesondere aus den Fign. 1 bis 3 der Gesamtaufbau der Pressenanlage zu erkennen ist, zeigt Fig. 4 die Lagerung der Stößel 11, 12 an den Längstraversen 9 vermittels der Führungen 13.The press system shown in the figures has a drawing stage 1 and working stages 2. With 3 press stands are positioned, which are set up on the press foundation 17 via press cross members 4. A press table 5 rests on the crossbeams 4 of the press, which are located in front of and behind the work stages 2, seen in the longitudinal direction of the press. It is possible to place the press stand 3 on the press crossbeams 4 with the press table 5 in between. Longitudinal cross members 9 are placed on the press stands 3, which extend at least over the entire area of the working stages 2 and of which a longitudinal cross member 9 is arranged in front of the rams 11, 12, a longitudinal cross member 9 behind the rams 11, 12, based on FIG. 1. The longitudinal beams can extend over the entire length of the press system. Head pieces 7, 8 are placed on the longitudinal cross members 9; another head piece 6 is assigned to drawing stage 1. The placement of the head pieces 7, 8 and possibly also the head piece 6 leads to a significant improvement in the overall structure of the press system, in particular with regard to stability. Press cross members 4, press stand 3, press table 5, longitudinal cross members 9 and head pieces 7, 8 are clamped to a structural unit by means of tension anchors 10. At 18, a rocker arm is positioned, which moves the transfer device 19 with the gripper means or suction means 20 in the sense of a transfer movement for the sheet metal parts (workpieces). The plungers 11, 12 and possibly also the plunger 25 are mounted on the longitudinal cross members so that they can be moved up and down by means of guide means, which are positioned overall at 13. On the rams 11, 12 there are upper tool parts 14 which interact with lower tool parts 15 on a sliding table 16 which can be moved out of the press system. The plungers 11, 12 and 25 are suspended from a total of 21 connecting rods positioned, which are indicated in FIG. 1 as dash-dotted lines. 4, the articulation points 22 of the connecting rods 21 on the rams 11, 12 are indicated. The connecting rods 21 can be driven via motors 26, flywheel 27, main shaft 24 and gears 23 installed in the head pieces. While in particular from FIGS. 1 to 3 the overall structure of the press system can be seen, FIG. 4 shows the mounting of the rams 11, 12 on the longitudinal cross members 9 by means of the guides 13.

Claims (3)

Stufenpresse, Transferpresse u. dgl. Pressenanlage oder Umformmaschine, mit einem Pressengestell aus Pressenständern (3), Pressentisch (5) und Kopfstücken (6, 7, 8), wobei diese Pressenteile vermittels Spannanker (10) untereinander starr verbunden sind, mit Stößeln (25, 11, 12) für die Umformung und einer Umsetzeinrichtung (18, 19, 20) für die Umsetzbewegung von Werkstücken zwischen den Arbeitsstufen (1, 2) sowie Antriebsmittel (23, 24, 26, 27) für den Bewegungsantrieb der Stößel (25, 11, 12) und der Umsetzeinrichtung (18, 19, 20), dadurch gekennzeichnet, daß in Längserstreckung der Pressenanlage vor und hinter den Stößeln (11, 12) je eine Längstraverse (9) verläuft, die sich jeweils über die Länge zumindest der Arbeitsstufen (2) erstrecken, daß nach der Ziehstufe (1) und vor den (nach-)folgenden Arbeitsstufen (2) und nach den Arbeitsstufen (2) jeweils ein Paar Pressenständer (3) angeordnet sind, von denen ein Pressenständer (3) örtlich vor den Stößeln (11, 12) und ein Pressenständer (3) örtlich hinter den Stößeln (11, 12) befindlich ist, auf denen sich die Längstraversen (9) abstützen und vermittels Spannanker (10) verspannt sind und daß an den Längstraversen (9) senkrecht verlaufende Führungen (13) angeordnet sind, in denen zumindest die Stößel (11, 12) der Arbeitsstufen (2) mit komplementären Führungen (13) auf- und abbewegbar gelagert sind.Step press, transfer press u. Press system or forming machine, with a press frame comprising press stands (3), press table (5) and head pieces (6, 7, 8), these press parts being rigidly connected to one another by means of tension anchors (10), with rams (25, 11, 12 ) for the forming and a transfer device (18, 19, 20) for the transfer movement of workpieces between the work stages (1, 2) as well as drive means (23, 24, 26, 27) for the movement drive of the plunger (25, 11, 12) and the transfer device (18, 19, 20), characterized in that in the longitudinal extension of the press system in front of and behind the rams (11, 12) there is a longitudinal cross member (9), each of which extends over the length of at least the working stages (2) that after the drawing stage (1) and before the (subsequent) work stages (2) and after the work stages (2) a pair of press stands (3) are arranged, of which a press stand (3) locally in front of the rams (11 , 12) and a press stand (3) local Lich behind the plungers (11, 12), on which the longitudinal cross members (9) are supported and braced by means of tension anchors (10) and that perpendicular guides (13) are arranged on the longitudinal cross members (9), in which at least the Tappets (11, 12) of the working stages (2) with complementary guides (13) can be moved up and down. Pressenanlage nach Anspruch 1, dadurch gekennzeichnet, daß der Aufbau der Pressenanlage
   je eine Pressenquertraverse (4) aufweist vor der der Ziehstufe (1) folgenden Arbeitsstufe (2) und nach der letzten der Arbeitsstufen (2) und die sich zur Längserstreckung der Pressenanlage quer erstrecken,
   einen von Pressenquertraverse (4) zu Pressenquertraverse (4) sich erstreckenden und auf den Pressenquertraversen (4) abgesetzten Pressentisch (5) aufweist,
   Pressenständer (3) aufweist, die sich direkt auf den Pressenquertraversen (4), bei Zwischenlage des Pressentisches (5) auf diesem abstützen,
   Längstraversen (9) aufweist, die auf den Pressenständern (3) aufliegen und
   zumindest zwei Kopfstücke (7, 8) aufweist zur Aufnahme der Antriebsmittel für die Stößel (11, 12), wobei die Kopfstücke (7, 8) auf den Längstraversen (9) aufliegen.Press system according to claim 1, characterized in that the structure of the press system
Each press cross-beam (4) has before the work stage (2) following the drawing stage (1) and after the last of the work stages (2) and which extend transversely to the longitudinal extent of the press system,
has a press table (5) which extends from the press crossbar (4) to the press crossbar (4) and is placed on the press crossbar (4),
Has press stand (3), which are supported directly on the press crossbeams (4), with the press table (5) on it,
Longitudinal cross members (9) which rest on the press stands (3) and
Has at least two head pieces (7, 8) for receiving the drive means for the tappets (11, 12), the head pieces (7, 8) resting on the longitudinal cross members (9). Stufenpresse, Transferpresse u. dgl. Pressenanlage oder Umformmaschine, mit einem Pressengestell aus Pressenständern (3), Pressentisch (5) und Kopfstücken (6, 7, 8), wobei diese Pressenteile vermittels Spannanker (10) untereinander starr verbunden sind, mit Stößeln (25, 11, 12) für die Umformung und einer Umsetzeinrichtung (18, 19, 20) für die Umsetzbewegung von Werkstücken zwischen den Arbeitsstufen (1, 2) sowie Antriebsmittel (23, 24, 26, 27) für den Bewegungsantrieb der Stößel (25, 11, 12) und der Umsetzeinrichtung (18, 19, 20), dadurch gekennzeichnet, daß in Längserstreckung der Pressenanlage vor und hinter den Stößeln (11, 12) je eine Längstraverse (9) verläuft, die sich über die Länge der Pressenanlage, zumindest aber über die Länge der Arbeitsstufen (2) erstrecken, die sich auf Pressenständern (3) vor und hinter den Stößeln (11, 12) abstützen und daß die Kopfstücke (7, 8), die der Aufnahme auch der Antriebsmittel für die Stößel (11, 12) dienen, auf den Längstraversen (9) aufliegen.Step press, transfer press u. Press system or forming machine, with a press frame comprising press stands (3), press table (5) and head pieces (6, 7, 8), these press parts being rigidly connected to one another by means of tension anchors (10), with rams (25, 11, 12 ) for the forming and a transfer device (18, 19, 20) for the transfer movement of workpieces between the work stages (1, 2) as well as drive means (23, 24, 26, 27) for the movement drive of the plunger (25, 11, 12) and the transfer device (18, 19, 20), characterized in that in the longitudinal extension of the press system in front of and behind the rams (11, 12) there is a longitudinal cross member (9) which extends over the length of the press system, but at least over the length the work stages (2), which are supported on press stands (3) in front of and behind the plungers (11, 12) and that the head pieces (7, 8), which also serve to accommodate the drive means for the plungers (11, 12) , rest on the longitudinal beams (9) .
EP93109675A 1992-06-27 1993-06-17 Press installation with longitudinal bolsters Expired - Lifetime EP0576928B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4221143 1992-06-27
DE4221143A DE4221143A1 (en) 1992-06-27 1992-06-27 Press system with cross members

Publications (2)

Publication Number Publication Date
EP0576928A1 true EP0576928A1 (en) 1994-01-05
EP0576928B1 EP0576928B1 (en) 1997-04-16

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EP93109675A Expired - Lifetime EP0576928B1 (en) 1992-06-27 1993-06-17 Press installation with longitudinal bolsters

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US (1) US5595111A (en)
EP (1) EP0576928B1 (en)
CZ (1) CZ282340B6 (en)
DE (2) DE4221143A1 (en)
ES (1) ES2101900T3 (en)

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Publication number Priority date Publication date Assignee Title
CN110976636A (en) * 2019-12-31 2020-04-10 江苏华灿电讯集团股份有限公司 Lower angle arm forming die for antenna installation and forming method
CN110976636B (en) * 2019-12-31 2021-07-06 江苏华灿电讯集团股份有限公司 Lower angle arm forming die for antenna installation and forming method

Also Published As

Publication number Publication date
DE4221143A1 (en) 1994-01-05
DE59306155D1 (en) 1997-05-22
CZ282340B6 (en) 1997-07-16
ES2101900T3 (en) 1997-07-16
EP0576928B1 (en) 1997-04-16
US5595111A (en) 1997-01-21
CZ125493A3 (en) 1994-10-19

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