EP0101026A2 - Installation de transport pour presses à étages ou chaînes de presses - Google Patents

Installation de transport pour presses à étages ou chaînes de presses Download PDF

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Publication number
EP0101026A2
EP0101026A2 EP83107728A EP83107728A EP0101026A2 EP 0101026 A2 EP0101026 A2 EP 0101026A2 EP 83107728 A EP83107728 A EP 83107728A EP 83107728 A EP83107728 A EP 83107728A EP 0101026 A2 EP0101026 A2 EP 0101026A2
Authority
EP
European Patent Office
Prior art keywords
gripper system
transport device
control roller
gripper
point
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
EP83107728A
Other languages
German (de)
English (en)
Other versions
EP0101026A3 (en
EP0101026B1 (fr
Inventor
Gerald Mikusch
Wolfgang Hübner
Werner Münch
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0101026A2 publication Critical patent/EP0101026A2/fr
Publication of EP0101026A3 publication Critical patent/EP0101026A3/de
Application granted granted Critical
Publication of EP0101026B1 publication Critical patent/EP0101026B1/fr
Expired 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
    • B21D43/057—Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable
    • 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

Definitions

  • the invention relates to a transport device for stepped presses or press lines with gripper rails which extend in the transport direction of the workpieces and which grip gripping tools interacting for gripping the workpieces and act on the interruptible drive movements derived from the drive of a press for the lifting and lowering movement of the gripper system.
  • a transport device for the transport of workpieces between the presses.
  • a gripper rail system is used that extends through the entire press line.
  • the gripper rails are driven in a cycle closing - lifting - forward - lowering - opening - lifting - backwards by the press drive.
  • a cam disk is arranged on the crankshaft for the lifting and lowering movement, against which a control roller loaded by a compressed air cylinder is placed. The movement of the control roller on the control cam is transmitted to the gripper rails for their High and low altitude.
  • the double-acting compressed air cylinder enables the control roller to be lifted from the cam if the control medium is reversed into the cylinder accordingly.
  • a drawing press stroke can be carried out without the action of the gripper system and a movement of the gripper rails without the press stroke.
  • An automatic movement of the gripper rails into a position other than that caused by the drive cannot be achieved in this way.
  • a drive for opening and closing gripper rails is known.
  • the working movement for this movement is tapped from the plunger movement via a control cam.
  • the control movement is derived via a control roller constantly placed against the cam by means of a compressed air cylinder and deflected into a longitudinal movement for actuating the gripper rails via a rack and pinion gear. Movements beyond these movements to achieve a further starting position are not provided here.
  • the object of the invention in a device of the generic type with a gripping tool change in connection with the tool change is to reach an end position, possibly the lowest position of the gripper system, in one case, in the other case independently of the ram drive, in which case exactly
  • the defined maximum position of the gripper system can be reached in an intermediate position which is moved from one end position to the second end position when the actuator is moved.
  • This task is solved by a press-driven control curve with curve components for the highest and lowest positions of the gripper system, a control roller that interacts with the control curve on a bell crank, an actuator that moves into the positions embodying the highest and lowest positions of the gripper system and also a control roller from the control cam lifting position can be controlled and by a lever mechanism with one for the articulation by the control roller and the actuator common articulation point and a tap point articulated to the gripper system, the lever mechanism being adjustable between two end positions, in which the gripper system has its lowest position, and a middle position, in which the gripper system has its highest position.
  • the gripping tools can be exchanged with the tool at the same time and can remain on or in this.
  • a knee joint lever mechanism is used with the advantages that result from the three definable positions of the system in connection with an actuator that can be moved in two end positions, and the extended position of the knee joint can be assigned to an intermediate position that can be overridden during the adjustment movement of the actuator.
  • the gripper rails 10 guided through the press line or a step press are to be raised and lowered from the position shown in full line to the position 10 1 indicated by dash-dotted lines in order to renew the workpiece inserted into a tool against a follow-up workpiece and to grasp the gripping tools at the same time To be able to change tools.
  • the devices according to the figures have a deflection lever 14 which is mounted on the frame and which, in a special embodiment, can be placed against the cam parts 12, 13 on the tappet movable in the direction indicated by the arrow, with the control roller 11 mounted at one end.
  • the deflection of the control roller 11 can also be effected via a cam disk which is actuated directly or indirectly by the press drive.
  • the control roller is thus adjustable during the lifting movement of the ram from position 1, which can correspond to the lowered position of the gripping tools, into position 2, which can correspond to the raised position of the gripping tools.
  • the second end of the reversing lever moves from position 1 1 to position 2 1 and the adjusting rod 25 is adjusted by the dimension H here.
  • the adjustment movement is transmitted to the gear 29.
  • This can be a double toothed spur gear for converting the movement into a smaller, possibly larger movement of the adjusting rod 26.
  • Positions 30 and 31 refer to two ring gears of different pitch circle and outside diameter. With 28 the conversion drive is generally positioned, which according to FIGS.
  • 3 and 4 can also be a lever mechanism 16 and whose translation or reduction ratio depends on the position of the deflection point 27, 35 to the articulation points of the adjustment rods 25 and 26 on this results.
  • the adjusting rods 25 and 26 are guided via guide means 32.
  • An actuating element 15 which is adjustable in two end positions engages on the adjusting rod 25 and, in the exemplary embodiment shown, is a compressed air cylinder 15 which can be acted upon twice.
  • the control piston is against the pressurization, the contact of the control roller 11 on the curve portions 12, 13 and under the influence of this adjustment from position 1 2 by the dimension H 11 in position 2 2 adjustable when the control roller 11 from position 1 is moved to position 2.
  • the adjusting rod 26 is articulated to a one-armed arm 20 via the articulation point 17 common to the control roller 11 and the actuator 15.
  • the articulation point 17 through a parallel guide, not shown, guided at right angles to the lifting movement of the gripper rails 10 and in the positions 1 3 , 2 3 and 3 3 , the positions 1, 2 and 3 of the control roller 11 and the positions 1 2 , 2 2 and 3 2 of the actuator 15 correspond, are moved, the tapping point 18 moves with the entrainment of the gripper rails 10 in the horizontal direction of movement here.
  • the tapping point 18 and with this the gripper rails 10 assume the lowest position in the positions 1 3 and 3 3 of the common articulation point 17, and the maximum position in the position 2 3 .
  • the adjustment dimensions H 12 and H 22 are implemented via the implementation drive compared to the adjustment dimensions H 11 and H 21 of the actuator 15.
  • a knee joint 19 is used in FIG second link 20 is connected, which is connected via the swing arm bearing 23 as a tapping point to the gripper rails 10.
  • the central bearing is moved into positions 1 3 , 2 3 and 3 3 .
  • the deflection and implementation of the adjustment movement as a result of a tappet movement or an actuator deflection can take place according to FIGS. 3 and 4 via a further deflection lever 36 which has the common articulation point for the adjustment rod 25, the deflection point 35 and the tap for the adjustment rod 26.
  • the deflection of the adjustment movement in a lifting and lowering movement for the gripper rails 10 takes place in Fig. 3 as in Fig. 1 via the lever mechanism 16 with the proviso that the handlebar 20 is moved in the positions 1 3 and 2 3 .
  • the adjustment movement is deflected into a lifting and lowering movement for the gripper rails 10 via the transmission drive 28, which consists of the adjustment rods 37 and 38, which are provided with teeth, and the spur gear 39, which may be designed as a double gear.
  • gripper rails occur in pairs and two tapping points 18 are to be provided accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP83107728A 1982-08-12 1983-08-05 Installation de transport pour presses à étages ou chaînes de presses Expired EP0101026B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823229943 DE3229943A1 (de) 1982-08-12 1982-08-12 Transporteinrichtung fuer stufenpressen oder pressenstrassen
DE3229943 1982-08-12

Publications (3)

Publication Number Publication Date
EP0101026A2 true EP0101026A2 (fr) 1984-02-22
EP0101026A3 EP0101026A3 (en) 1984-04-18
EP0101026B1 EP0101026B1 (fr) 1987-03-04

Family

ID=6170646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107728A Expired EP0101026B1 (fr) 1982-08-12 1983-08-05 Installation de transport pour presses à étages ou chaînes de presses

Country Status (3)

Country Link
US (1) US4627528A (fr)
EP (1) EP0101026B1 (fr)
DE (2) DE3229943A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693361A (en) * 1982-10-05 1987-09-15 Kabushiki Kaisha Komatsu Seisakusho Transfer press
US4735303A (en) * 1986-08-26 1988-04-05 Wallis Bernard J Transfer apparatus
DE4002405A1 (de) * 1989-04-06 1990-10-11 Thielenhaus Ernst Kg Werkzeugmaschine, insbes. feinschleifmaschine
DK0504098T3 (da) * 1991-03-15 1995-07-03 Styner & Bienz Ag Transportmekanisme til en presse
DE102007054769A1 (de) * 2007-11-16 2009-05-20 Bosch Mahle Turbo Systems Gmbh & Co. Kg Stellantrieb für bidirektionales Stellglied

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD35451A (fr) *
DE1195784B (de) * 1959-03-21 1965-07-01 Ofu Ofenbau Union Ges Mit Besc Synchronisiereinrichtung zur Erzwingung gleich-langer Wege der bewegten Teile von mehreren druckmittelbeaufschlagten Zylindern
DE1271067B (de) * 1960-08-16 1968-06-27 Weingarten Ag Maschf Pressenstrasse zur Herstellung von Blechteilen
SU703437A1 (ru) * 1971-06-14 1979-12-15 , Шагающий конвейер
CH560932A5 (fr) * 1973-02-07 1975-04-15 Tarex Manurhin Sa
DE2450477B2 (de) * 1974-10-24 1976-07-22 Maschinenfabrik Weingarten Ag, 7987 Weingarten Vorrichtung zum anpassen der greiferbacken von greiferschienen an die zu bearbeitenden werkstueckteile in einer stufenpresse
JPS5222182A (en) * 1975-07-22 1977-02-19 Aida Eng Ltd Processing and feeding appatatus for use in a three-dimensional transf er press machine
US4329866A (en) * 1980-07-10 1982-05-18 Premier Forging Press Automation, Inc. Beam transfer mechanism
JPS5861931A (ja) * 1981-10-08 1983-04-13 Komatsu Ltd トランスフアフイ−ダの素材搬送ストロ−ク切換装置

Also Published As

Publication number Publication date
DE3369917D1 (en) 1987-04-09
EP0101026A3 (en) 1984-04-18
US4627528A (en) 1986-12-09
DE3229943A1 (de) 1984-02-16
EP0101026B1 (fr) 1987-03-04

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