EP0134776A2 - Presse pour travailler des tôles - Google Patents

Presse pour travailler des tôles Download PDF

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Publication number
EP0134776A2
EP0134776A2 EP84890132A EP84890132A EP0134776A2 EP 0134776 A2 EP0134776 A2 EP 0134776A2 EP 84890132 A EP84890132 A EP 84890132A EP 84890132 A EP84890132 A EP 84890132A EP 0134776 A2 EP0134776 A2 EP 0134776A2
Authority
EP
European Patent Office
Prior art keywords
tools
press
support
tool
turntable
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Withdrawn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
EP84890132A
Other languages
German (de)
English (en)
Other versions
EP0134776A3 (fr
Inventor
Dietrich Kreuzgruber
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0134776A2 publication Critical patent/EP0134776A2/fr
Publication of EP0134776A3 publication Critical patent/EP0134776A3/fr
Withdrawn legal-status Critical Current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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/654—With work-constraining means on work conveyor [i.e., "work-carrier"]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y10T83/8732—Turret of tools

Definitions

  • the invention relates to a press for processing sheet metal with a frame connected to a coordinate table, which carries an upper rotary plate with axially adjustable upper tools distributed around the circumference, a lower rotary table with lower tools assigned to the upper tools and a press ram, which accordingly with the respective rotary position of the upper turntable in its area upper tool can be coupled.
  • Presses of this type have the advantage that the workpiece can be processed with different tools without having to carry out time-consuming and labor-intensive retooling work on the press.
  • the tools used in each case need only be rotated with the help of the turntables in which they are stored to the working position in which the selected upper tool is coupled with the press ram to carry out the working stroke.
  • the workpiece is aligned on the coordinate table assigned to the press so that the tools grip in the right place.
  • the workpiece is gripped by pliers and moved on the coordinate table, which makes it necessary to lower the table parts located in the range of movement of the pliers.
  • the pliers cannot be moved arbitrarily close to the upper and lower tool in use because the adjacent lower tools hinder the movement of the pliers in the area of the tool used.
  • the invention is therefore based on the object to avoid these deficiencies and to improve a press of the type described in such a way that the pliers movement for workpiece positioning is not impeded by the lower tools held in the lower turntable.
  • the invention solves the problem in that the lower tools are each axially displaceably mounted in the lower turntable, that the frame has a support opposite the press ram for the lower tool located in its area due to the respective rotational position and that at least for this lower tool a lowering device is provided directly adjacent lower tools.
  • the lower tools adjacent to the lower tool in use can be lowered so far that the pliers for the workpiece guidance can be moved freely over these lower tools. So that the lower tool in use, which must be axially displaceable in the lower turntable in accordance with the other lower tools, in order to be able to lower it when an adjacent lower tool is used, can absorb the forces that occur, it will turn on the lower turntable guided a support fixed to the frame, so that there are usual conditions for machining. When changing tools, the lowered lower tools must be raised again in order to be able to move them over the fixed support.
  • the lowering device consists of a lowerable support for the lower tools mounted in the frame. Since this support does not rotate with the lower turntable, its storage and drive are structurally particularly easy to solve. In addition, the controls for the individual drives that are otherwise necessary are eliminated.
  • the support can have at least one radial driver assigned to the rotary plates for the lower tools, the guide groove being provided with an axial opening for the driver of the lower tool located in the region of the support.
  • the drivers of the lower tools engage in the guide groove in the area of the lowerable support, so that when the support is lowered, the lower tools, with the exception of the lower tool resting on the support, are inevitably taken along by the drivers. Because of the axial breakthrough of the guide groove in the area of the support, the lower tool in use is not taken along, because when the support is lowered, its driver comes out of the guide groove through the axial breakthrough.
  • the press shown has an essentially C-shaped frame 1, in its upper leg an upper turntable 2 and in its lower leg a lower turntable 3 are mounted coaxially.
  • These rotary plates 2 and 3 carry cooperating upper tools 4 and lower tools 5 distributed over the circumference, the respective tool pair 4, 5 being rotated by a corresponding rotation of the rotary plates 2, 3 into the working position in which the selected upper tool with a press ram 6 is coupled.
  • This press ram 6 is actuated according to the exemplary embodiment by a hydraulic cylinder 7 and has in its head facing the upper tool 4 a coupling groove 8 which extends in the circumferential direction of the turntable 2 and is T-shaped in cross section and into which a coupling attachment 9 of the tool holder 10 is turned when it rotates of the upper turntable 2 engages. Since the upper tools 4 inserted into the tool holder 10 are axially displaceably mounted in the upper rotary plate 2, the upper tool 4 coupled to the press ram 6 can perform a working stroke when the hydraulic cylinder 7 is acted on, in which a hole is punched into the workpiece 11, for example.
  • the tool holder 10 for the upper tools 4 is slidably guided in a bushing 12 which is itself slidably mounted in the upper rotary plate 2 and carries a scraper ring 13.
  • This bushing 12 is connected to a plate 14 which is axially supported on spring-loaded axial bolts 15 mounted in the turntable 2, so that the bushing 12 is held in a rest position via these spring-loaded axial bolts 15.
  • the tool holder 10 is supported by a spring 16, so that defined rest positions are also given for the upper tools 4.
  • the upper tool 4 connected to the press ram 6 can be lowered against the spring forces, the bushing 12 with the scraper ring 13 being moved by a hold-down ram 17 acting on the support plate 14 until the Scraper ring 13 sits on the workpiece 11.
  • the upper tool is then pressed further against the lower tool 5 relative to the scraper ring 13 and a hole is punched in the workpiece 11.
  • the wiper ring 13 holds the workpiece 11 back from being carried by the upper tool 4.
  • the workpiece 11 to be machined is positioned on a coordinate table 18 assigned to the press for machining.
  • pliers 20 arranged on a cross slide 19 are provided, which can be moved in two mutually perpendicular directions.
  • the workpiece 11 gripped by these pliers 20 can thus be aligned with the press in the desired manner by being correspondingly displaced on the coordinate table.
  • the table is composed of individual lamellae 21, which are correspondingly vertically displaceable and can be lowered when the pliers approach.
  • the lower tools 5 are in contrast to conventional ones Lichen presses of this type are mounted axially displaceably in the lower turntable 3, so that they can also be lowered under the movement path 20.
  • the slidable mounting of the lower tools 5 is ensured by pressure sleeves 22, which are slidably held in the turntable 3 and carry the tool holders 23 for the lower tools 5 in the region of their upper end.
  • a lowering device 24 is provided, which consists of a support 25 for the lowerable lower tools 5. This support 25 is slidably guided in the frame 1 with the aid of slide rods 26 and can be raised and lowered with the aid of a cylinder 27 (FIG. 2).
  • the support 25 has two guide grooves 28, which are coaxial with the turntable 3, for the drivers 29 assigned to the lower tools 5.
  • the drivers 29 on the pressure sleeves 22 are inserted into the guide grooves of the support 25 forming a circular ring sector and can be lowered via this support when the cylinder 27 is acted upon accordingly.
  • the lower tool intended for use and located opposite the press ram 6 must not be lowered. This is achieved by means of a support 30 for this lower tool 5 which is fixed to the frame and is opposite the press ram 6 and on which the pressure sleeve 22 of the lower tool 5 in use due to the respective rotary position of the rotary plate 3 rests, as shown in FIG. 3.
  • the guide grooves 28 of the support 25 have axial openings 31 in the region of the support 30, through which the drivers 29 emerge from the guide grooves 28 can exit when lowering the edition 25.
  • the support 25 must be raised back to the starting position in order to move the lower tools past the support 30 can.
  • the pressure sleeves 22 slide onto fixedly arranged guide surfaces 32 of the frame 1, which ensure the starting position of the displaceably mounted lower tools 5.
  • these turntables can be provided in the usual way with toothed rings 33 which mesh with pinions 36 driven by belt or chain drives 34 from a common drive shaft 35.
  • radial bolts 37 are provided which engage in corresponding centering bushes 38 of the turntables 2 and 3 and can be adjusted pneumatically or hydraulically.
  • the pressure sleeves 22 are supported with the aid of springs 39 with respect to the lower turntable 3, as indicated in FIG. 6, the pressure sleeves 22 are held in the raised position via these springs 39, so that the guide surfaces 32 according to FIG. 5 are omitted can.
  • the pressure sleeves 22 are lowered against the force of these springs 39.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP84890132A 1983-08-17 1984-07-13 Presse pour travailler des tôles Withdrawn EP0134776A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2944/83 1983-08-17
AT0294483A AT377457B (de) 1983-08-17 1983-08-17 Presse zum bearbeiten von blechen

Publications (2)

Publication Number Publication Date
EP0134776A2 true EP0134776A2 (fr) 1985-03-20
EP0134776A3 EP0134776A3 (fr) 1987-10-14

Family

ID=3542810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890132A Withdrawn EP0134776A3 (fr) 1983-08-17 1984-07-13 Presse pour travailler des tôles

Country Status (7)

Country Link
US (1) US4541318A (fr)
EP (1) EP0134776A3 (fr)
JP (1) JPS6061124A (fr)
AT (1) AT377457B (fr)
CA (1) CA1225880A (fr)
ES (1) ES8606123A1 (fr)
SU (1) SU1303017A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593728A1 (fr) * 1986-02-06 1987-08-07 Amada Co Ltd Poinconneuse a entrainement equilibre

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63104792A (ja) * 1986-10-21 1988-05-10 Murata Mach Ltd 板材の複合加工機
US4929276A (en) * 1989-05-22 1990-05-29 Murata Wiedemann, Inc. Multitool punch holder
JP2861928B2 (ja) * 1996-04-11 1999-02-24 村田機械株式会社 ダイホルダ取付構造

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3489049A (en) * 1966-11-14 1970-01-13 Houdaille Industries Inc Adjustable die support
FR2125613A1 (en) * 1971-02-19 1972-09-29 Amada Ltd Us Pneumatic control system - for hydraulically operated punch press
FR2436011A1 (fr) * 1978-09-14 1980-04-11 Schuler Gmbh L Dispositif de changement d'outils, notamment pour une machine a poinconner des encoches
FR2511902A1 (fr) * 1981-08-28 1983-03-04 Libaud Procedes Ateliers Berna Dispositif support de matrice coulissant pour une machine poinconneuse
GB2129729A (en) * 1982-11-05 1984-05-23 Amada Co Ltd Punch press

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752546C2 (de) * 1968-06-12 1973-09-20 C. Behrens Ag, 3220 Alfeld Sicherheitsvorrichtung an einem Werk Stuckspanner fur Koordinatentische an Revol verstanzen
US3717061A (en) * 1971-02-19 1973-02-20 Amada Ltd Punch press
AU518275B2 (en) * 1971-02-19 1981-09-24 U.S. Amada, Ltd. Punch press
US3895550A (en) * 1974-02-24 1975-07-22 Amada Ltd Us Extendable arm punching apparatus
US3961549A (en) * 1975-06-16 1976-06-08 Houdaille Industries, Inc. Die changing turret table segment
US4162641A (en) * 1977-10-28 1979-07-31 Potomac Applied Mechanics, Inc. Automatic loading and unloading for numerically controlled turret punch
US4213324A (en) * 1978-07-21 1980-07-22 Usm Corporation Punch press and method for making can ends with closures
JPS56131023A (en) * 1980-03-18 1981-10-14 Amada Co Ltd Turret punch press
ES501295A0 (es) * 1980-04-10 1982-09-16 Mercer Nairne & Co Ltd Torreta perfeccionada para maquinas punzonadoras.
US4486941A (en) * 1981-09-04 1984-12-11 W. A. Whitney Corp. Punch press with automatic tool changer
DE3135266C2 (de) * 1981-09-05 1983-11-17 C. Behrens Ag, 3220 Alfeld Schneidpresse zum Herausschneiden oder -trennen von Teilen aus einer Werkstücktafel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3489049A (en) * 1966-11-14 1970-01-13 Houdaille Industries Inc Adjustable die support
FR2125613A1 (en) * 1971-02-19 1972-09-29 Amada Ltd Us Pneumatic control system - for hydraulically operated punch press
FR2436011A1 (fr) * 1978-09-14 1980-04-11 Schuler Gmbh L Dispositif de changement d'outils, notamment pour une machine a poinconner des encoches
FR2511902A1 (fr) * 1981-08-28 1983-03-04 Libaud Procedes Ateliers Berna Dispositif support de matrice coulissant pour une machine poinconneuse
GB2129729A (en) * 1982-11-05 1984-05-23 Amada Co Ltd Punch press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593728A1 (fr) * 1986-02-06 1987-08-07 Amada Co Ltd Poinconneuse a entrainement equilibre

Also Published As

Publication number Publication date
SU1303017A3 (ru) 1987-04-07
ES8606123A1 (es) 1986-04-01
EP0134776A3 (fr) 1987-10-14
US4541318A (en) 1985-09-17
ATA294483A (de) 1984-08-15
JPS6061124A (ja) 1985-04-08
ES535247A0 (es) 1986-04-01
CA1225880A (fr) 1987-08-25
AT377457B (de) 1985-03-25

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Inventor name: KREUZGRUBER, DIETRICH