EP3206812B1 - Presse zum hauptzeitparallelen arbeiten - Google Patents

Presse zum hauptzeitparallelen arbeiten Download PDF

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Publication number
EP3206812B1
EP3206812B1 EP15777664.2A EP15777664A EP3206812B1 EP 3206812 B1 EP3206812 B1 EP 3206812B1 EP 15777664 A EP15777664 A EP 15777664A EP 3206812 B1 EP3206812 B1 EP 3206812B1
Authority
EP
European Patent Office
Prior art keywords
press
tool
stroke
holding means
control element
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.)
Active
Application number
EP15777664.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3206812A1 (de
Inventor
Stefan Andreas KRUCK
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.)
Sk-Technologies GmbH
Original Assignee
Sk-Technologies 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 Sk-Technologies GmbH filed Critical Sk-Technologies GmbH
Priority to PL15777664T priority Critical patent/PL3206812T3/pl
Publication of EP3206812A1 publication Critical patent/EP3206812A1/de
Application granted granted Critical
Publication of EP3206812B1 publication Critical patent/EP3206812B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J3/00—Lubricating during forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/022—Special design or construction multi-stage forging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K29/00—Arrangements for heating or cooling during processing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/08—Accessory tools, e.g. knives; Mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/14—Control arrangements for mechanically-driven presses
    • B30B15/146—Control arrangements for mechanically-driven presses for synchronising a line of presses

Definitions

  • the invention relates to a press according to the preamble of patent claim 1.
  • the invention relates to a press, which is used in particular in a forging process.
  • Forging processes are known in which several forming stages are used. Different forming stages are forged in successively switched workstations with gradual approach to the final contour. To be able to produce economically, all forming stages are preferably mounted in a single press. Depending on the force of the press or other parameters of the forging process, all forming stages can be occupied at the same time. This assignment is referred to as a multiple document method. If the force of the press is insufficient or if other parameters of the forging process are not allowed for all the forming stages to be occupied at the same time, the process is transferred from one forming stage to the next.
  • the main time is the machining time of workpieces.
  • the time for the press advancement and return stroke is referred to as the main time.
  • the object of the invention is to provide a press in which secondary activities can be carried out during the execution of a forming stage at the other forming stages parallel to the main time, in particular to shorten the cycle time.
  • the press according to the invention is provided with at least one press ram, with which a press stroke is executable upon actuation of the press, with at least a first workstation and a second workstation, wherein the first and the second workstation each have a lower tool part and a tool upper part a first forming step is formed by the lower part of the tool and the upper part of the tool of the first work station, and a second forming step is formed by the lower part of the tool and the upper part of the tool of the second work station.
  • Such multi-stage presses are for example off FR 871 397 A known.
  • the press has a mechanical element for transferring the press stroke to alternately one of the forming stages, whereby the press stroke is alternately and independently transferable to the first and the second forming stage.
  • the press has a number of n forming steps, wherein the mechanical element of the press stroke can be transferred to a number of 1 to n-1 forming stages simultaneously. At the remaining forming stage then a secondary activity can be performed, which is particularly advantageous in rotary transfer machines.
  • the mechanical element is controlled by at least one control element, preferably hydraulically or pneumatically.
  • a hydraulic or pneumatic control can be adjusted particularly sensitive, uniform and infinitely variable.
  • the at least one control element is arranged on the at least one press ram. This results in a favorable space-optimized design for the press.
  • the at least one control element is arranged on a housing of the press and / or on a press table of the press. This provides an advantageous alternative for the arrangement of the control element.
  • the at least one control element of the at least one press ram preferably in parallel to the press stroke, extendable, wherein the control with little effort, preferably by a spindle drive, is retractable and positively locked in the extended position, preferably by a spindle pitch with self-locking.
  • the at least one control element can be extended substantially perpendicular to the press stroke. This is particularly advantageous if the at least one control element is arranged laterally on the housing of the press.
  • control is a control cylinder.
  • a control cylinder is particularly easy to control hydraulically or pneumatically.
  • the mechanical element is a control plate or spool suitably shaped and dimensioned to transmit the force of the press from the press ram to the respective tool.
  • Plate-shaped elements or pistons are easily interchangeable.
  • the press stroke can be controlled manually and / or automatically.
  • the manual operation of the press can be very cumbersome in presses where the design limits the space within the tools, and depending on safety regulations also not be approved.
  • An automated control is then particularly advantageous.
  • the press stroke can be controlled by a robot.
  • the loading and unloading and ancillary activities can be performed by a robot.
  • the press stroke can be transmitted by the mechanical element to the tool upper part of the respective forming stage.
  • the executed movement of the press ram acts on the upper tool part of a forming stage, that the respective work station is closed and the at least one other workstation is opened, wherein with the closed workstation, a forging operation is performed.
  • a robot is preferably used in the transmission of the press stroke.
  • the tool upper part to which no press stroke is transferred, held by holding means in an open position.
  • the tool upper part is advantageously held in the open position until force is introduced via the press ram and the mechanical element and closing of the tool upper part and tool lower part is brought about.
  • the holding means are preferably arranged between the lower part of the tool and the upper part of the tool. This arrangement results in a particularly advantageous space-saving design of the press.
  • the holding means between the tool upper part and the press table are arranged. This arrangement is an advantageous alternative to the aforementioned arrangement of the holding means.
  • the holding means preferably have at least one compression spring.
  • a compression spring can be used from the engineering known spring elements, which may be designed in a simple design as a spiral spring, plate spring or gas spring.
  • the holding means have at least one tension spring.
  • tension springs By tension springs a better loading and unloading of the press can be provided.
  • tension springs which are arranged between the tool upper part and the press table, sufficient space can be provided between a tool upper part and a tool lower part.
  • the press has communication means for controlling a robot and a lubrication device.
  • the robot and the lubricator can be controlled in response to the control of the press stroke.
  • lubrication devices such as spray manipulators, a friction between forging tool surfaces and workpieces can be reduced and a mold release can be ensured.
  • the press is a forging press or a trimming press.
  • forging components have circumferentially surplus material which can be removed in separate trimming operations by means of a trimming press.
  • FIG. 1 shows in side view an embodiment of a press 1 according to the invention.
  • the press 1 is arranged in a housing 4.
  • the press 1 of the FIG. 1 is a forging press, which is driven by a spindle drive 3.
  • a press 1 with a spindle drive 3 is also referred to as a screw press.
  • Spindle presses can be equipped with a large stroke due to the design, since a rotational movement of a spindle into a vertically acting translation whose size depends on the length of the spindle can be converted in the axial direction of the spindle.
  • a size of the stroke of a screw press has little effect on the purchase price. Especially with large workpieces, a large stroke is advantageous.
  • a press ram 2 is arranged at one end of the spindle drive 3.
  • the press ram 2 performs a press stroke h, that is, the press ram 2 sets a path h in the axial direction of the spindle back.
  • a first workstation 10 which comprises a tool lower part 12 and a tool upper part 14, and a second workstation 20, which comprises a tool lower part 22 and a tool upper part 24, are arranged in the present case.
  • the tool lower parts 12, 22 and the tool tops 14, 24 each form a first forming stage 16 and a second forming stage 26.
  • a mechanical element 30 is arranged in the form of a control plate.
  • the mechanical element 30 is movable via a control element 40, which in the present case is designed as a control cylinder and is arranged on the press ram 2, in the orthogonal direction to the press stroke h.
  • the press stroke h can be transferred to one of the forming steps 16, 26 independently of one another.
  • the first workstation 10 and the second workstation 20 each have a holding means 50.
  • the holding means 50 are formed as compression springs, of which two are each arranged between the lower tool part 12 and the upper tool part 14 of the first workstation 10 and the lower tool part 22 and the upper tool part 24 of the second workstation 20.
  • the holding means 50 are in the present case designed as helical springs. With the spring action of the holding means 50, the tool tops 14 and 24 are held in an open position until 30 force is applied via the press ram 2 and the mechanical element and closure of one of the at least two workstations 10, 20 is brought about.
  • the holding means 50 may also be arranged between the tool upper part 14, 24 and the at least one press ram 2.
  • FIG. 2 shows a cut-out enlargement of the forging press FIG. 1 ,
  • the press ram 2 is in the open position, ie, none of the at least two workstations 10, 20 is a force introduced.
  • the holding means 50 are not claimed by the press stroke h.
  • the control 40 is so far in orthogonal Direction to the press stroke h extended that the mechanical element 30 between the press ram 2 and the tool upper part 14 of the first workstation 10 is arranged.
  • FIG. 3 shows a cut-out enlargement of the forging press FIG. 1 with the press ram 2 shown in a closed position.
  • a force is introduced into at least one of the at least two workstations 10, 20.
  • the control element 40 is extended in such a way that the mechanical element 30 is arranged between the press ram 2 and the tool upper part 14 of the first workstation, so that upon actuation of the press ram 2, a force transfer can take place at the first workstation 10, at the first workstation 10 to be able to carry out a forging process.
  • the holding means 50 are compressed between the upper tool part 14 and the lower tool part 12 of the first workstation 10 by the force of the press 1.
  • the compression springs of the first workstation 10 are compressed by the mechanical element 30, which transfers the press stroke h of the press ram 2 to the first workstation 10, so that a forging process can be carried out on the first workstation 10.
  • the second forming stage 26 is held by the holding means 50 in an open position.
  • FIG. 4 shows a further cut-out enlargement of a forging press FIG. 1 wherein the press ram 2 as in FIG. 3 is shown in a closed position.
  • the control element 40 is different from FIG. 3 extended so that the mechanical element 30 between the tool top 24 of the second workstation 20 and the press ram 2 is arranged is.
  • the first forming stage 16 is held by the holding means 50 in an open position.
  • a robot 60 can be used, cf.
  • the robot 60 can be controlled, the robot 60 being controllable in dependence on the control of the press stroke h.
  • Lubrication device 70 shown is a so-called spray manipulator with a Verfahrarm 72, at one end of a spray head 74 is arranged.
  • the Verfahrarm 72 can be rotated about an axis of rotation to reach the forming stages 16 and 26. But there are also linear movements of the Verfahrarms 72 possible.
  • the spray heads 74 can be adapted to different contours of the different forming stages 16 and 26. Via communication means of the press 1, the lubricating device 70 can be controlled, wherein the lubricating device 70 is controllable in dependence on the control of the press stroke h.
  • FIG. 5 shows a side view of an embodiment of a press 1, wherein the control element 40 is arranged laterally on the press ram 2 on the housing 4.
  • the mechanical element 30 is arranged in the housing 4, between the press ram 2 and the tool upper parts 14, 24.
  • the press may be a forging press, a trimming press or another press.
  • control member 40 from the press ram 2 can be extended, wherein the control member 40 can be positively locked or held by self-locking.
  • the control member 40 can be positively locked or held by self-locking.
  • a control can be ensured.
  • Cylinder or spindle thus form the controls 40.
  • the mechanical element 30 omitted. The force is then transmitted from the press ram 2 via these elements on the tool tops 14, 24. The positive locking or the self-locking effect that the controls 40 do not require much effort for the extension and still be able to transfer the great force of the press ram 2 on the tool tops 14, 24.
  • the holding means 50 between the press table 5 and the tool upper parts 14, 24 are arranged, so that the holding means 50 in the form of spring elements could apply a spring force between the press table and tool tops 14, 24. In this case, sufficient space is provided between the tool upper parts 14, 24 and the tool lower parts 12, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
EP15777664.2A 2014-10-13 2015-10-05 Presse zum hauptzeitparallelen arbeiten Active EP3206812B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15777664T PL3206812T3 (pl) 2014-10-13 2015-10-05 Prasa do pracy podczas głównego czasu obróbki

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102014015566 2014-10-13
DE102014015543 2014-10-22
DE102015000268 2015-01-16
DE102015005410 2015-04-29
DE102015112959.0A DE102015112959A1 (de) 2014-10-13 2015-08-06 Presse zum hauptzeitparallelen Arbeiten
PCT/EP2015/072968 WO2016058859A1 (de) 2014-10-13 2015-10-05 Presse zum hauptzeitparallelen arbeiten

Publications (2)

Publication Number Publication Date
EP3206812A1 EP3206812A1 (de) 2017-08-23
EP3206812B1 true EP3206812B1 (de) 2018-09-12

Family

ID=55644251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15777664.2A Active EP3206812B1 (de) 2014-10-13 2015-10-05 Presse zum hauptzeitparallelen arbeiten

Country Status (7)

Country Link
US (1) US20170297082A1 (pl)
EP (1) EP3206812B1 (pl)
CN (1) CN107073554A (pl)
DE (1) DE102015112959A1 (pl)
ES (1) ES2700375T3 (pl)
PL (1) PL3206812T3 (pl)
WO (1) WO2016058859A1 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015016809A1 (de) 2015-01-16 2016-07-21 Sk-Technologies Ug (Haftungsbeschränkt) Spühmanipulator für Schmiedepressen zum hauptzeitparallelen Sprühen an mindestens einer von wenigstens zwei vorhandenen Arbeitsstationen
DE202019105797U1 (de) 2019-10-18 2019-11-07 Schuler Pressen Gmbh Werkzeug und Presse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR871397A (fr) * 1940-04-08 1942-04-22 Schuler L Ag Presse
CN1031556C (zh) * 1991-03-27 1996-04-17 三星五金工厂股份有限公司 锻造机械的冲压机构
JP2580440B2 (ja) * 1992-07-21 1997-02-12 株式会社アマダメトレックス パンチプレス用多連金型
US7730816B2 (en) * 2001-03-29 2010-06-08 Amada America, Inc. Press apparatus, striker control modular tool apparatus and programmable method for punching apertures into a workpiece
JP4831226B2 (ja) * 2009-10-29 2011-12-07 株式会社デンソー 複数工程用プレス機およびプレス加工方法
CN202239150U (zh) * 2011-10-31 2012-05-30 瑞安市华大液压机械厂 多工位冲压机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2016058859A1 (de) 2016-04-21
ES2700375T3 (es) 2019-02-15
US20170297082A1 (en) 2017-10-19
CN107073554A (zh) 2017-08-18
PL3206812T3 (pl) 2019-03-29
EP3206812A1 (de) 2017-08-23
DE102015112959A1 (de) 2016-04-14

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