EP0396876A1 - Poinçonneuse à révolver avec outil rotatif - Google Patents

Poinçonneuse à révolver avec outil rotatif Download PDF

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Publication number
EP0396876A1
EP0396876A1 EP19900104955 EP90104955A EP0396876A1 EP 0396876 A1 EP0396876 A1 EP 0396876A1 EP 19900104955 EP19900104955 EP 19900104955 EP 90104955 A EP90104955 A EP 90104955A EP 0396876 A1 EP0396876 A1 EP 0396876A1
Authority
EP
European Patent Office
Prior art keywords
turret
plate
drive
cutting press
press according
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
EP19900104955
Other languages
German (de)
English (en)
Other versions
EP0396876B1 (fr
Inventor
Gerhard Otto
Volker Gellrich
Werner Teichert
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.)
C Behrens AG
Original Assignee
C Behrens 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 C Behrens AG filed Critical C Behrens AG
Publication of EP0396876A1 publication Critical patent/EP0396876A1/fr
Application granted granted Critical
Publication of EP0396876B1 publication Critical patent/EP0396876B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • 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 turret cutting press according to the preamble of claim 1.
  • profiled tools are often used in the circumferential area, which are accommodated in the turret plate so as to be rotatable about their longitudinal axis and can be controlled in their angular position.
  • Such turret cutting presses are known for example from DE 34 41 530 A1. It is characteristic of these that at least one special motor drive is required for driving the tools about their longitudinal axis, which is arranged in the peripheral region of the turret plate and can be coupled with individual tool sets.
  • To transfer a specific tool set into its working position which comprises rotating the turret plate into the respective punching position and rotating the tool set about its longitudinal axis into a specific angular position.
  • the turret plates are first transferred to the punching position by actuating the drives assigned to them and fixed using special locking devices.
  • the drive associated with the rotation of the tool about its longitudinal axis is then coupled to the respective tool and the tool is transferred to the desired angular position.
  • the tool sets must either be locked in their last rotational angle position before a turn of the plate, so that, starting from a given, stored rotational angle position, the rotation required to achieve a new rotational angle position can or must be calculated Before each change in the angle of rotation position, the exact zero position of the respective tool set must be set in order to reach the new angle position based on this.
  • each turret plate can have a single drive, from which the rotary movement of individual tool sets is derived.
  • a common drive for both turret disks which are generally arranged one above the other, from which the rotary movements of all tool sets are derived.
  • the latter makes a branching gear necessary to transmit rotary movements to both turret plates, but - as in the former case - eliminates the need for special synchronization devices to ensure the identical rotary movement of both turret plates. In this way, angle errors relating to the position of the upper and lower tools are avoided in the simplest way. Since the functional elements required for transferring a rotary movement to individual tool sets are each arranged on the sides of the turret plate facing away from one another, the often narrow space between the turret plates is not impaired by the rotary drive of individual tool sets.
  • the switchable functional elements of the drive consist, according to the features of claim 5, of a frictional torque transmission serving disc coaxially surrounding the axis of the turret plate and a controllable device for axially displacing this disc.
  • the latter device can in principle be of any design - especially However, their design as a pressure medium-operated device is advantageous.
  • the other functional elements for actuating the tool drive consist of a gear transmission, by means of which a kinematic link can be established between a rotation of the disk drive shaft and the individual tool. If a frictional connection is established by means of the aforementioned disk, the entire turret plate, including the rotatable tool sets accommodated therein, moves like a rigid body.
  • the features of claim 6 are directed to a specific embodiment of the controllable device for axially displacing the disk.
  • the disk used for frictional torque transmission on the plate drive shaft is axially displaceable but non-rotatably connected to it, the ring piston mentioned only rotates the plate drive shaft in the event of pressure being applied, i.e. in the case where torque is transmitted to the turret plate.
  • claims 8 and 9 are directed to the design of the direct coupling of individual rotatable tool sets. It can be seen that all drive elements of a single tool set are always arranged on the top or bottom of the respective turret plate, so that the space between the turret plates, which is in itself narrow, is not impaired by the rotatable arrangement of individual tool sets.
  • the upper tool can consist, in a manner known per se, of a stamp and stamp holder, the latter of which is axially displaceable but non-rotatably received in a bushing inserted in a bore in the upper turret plate, the latter being drivable via a toothing formed in the edge thereof.
  • the socket can also be formed in one piece with the stamp holder, so that the number of components used overall is also reduced here.
  • the measures of claims 10 to 12 serve to largely eliminate any backlash in the area of the gear train serving to drive the tool sets and thus to increase the accuracy when adjusting the angle of rotation of a tool set.
  • These measures insofar as they relate to the adjustable configuration of the toothing of the bushes, serve for precise adjustment a zero position common to all rotatable tool sets.
  • synchronization errors between the rotational angle positions of the upper and lower tools are also avoided in this way, and at the same time the control engineering effort for positioning the tool sets is kept low.
  • any number of tool sets can be driven about their longitudinal axis.
  • the gear transmission can also be replaced by another switchable transmission device that is true to the angle of rotation between the disk drive shaft on the one hand and the socket on the other hand.
  • FIG. 1 shows a turret cutting press according to the invention in its entirety.
  • This consists of a standing C-shaped base frame 1, at the end region of which can be rotated about axes that run coaxially and vertically to one another and two turret disks 2, 3 are arranged at a distance from one another.
  • the revolver plates 2, 3 carry a number of complete tool sets 4, 5 on their circumferential area, the structure of which will be explained in more detail below and which each consist of at least one stamp arranged in the upper revolver plate 2 together with the stamp holder and a die arranged in the lower revolver plate.
  • the tool sets 4, 5 of the upper and lower turret plates 2, 3 are each in an axially aligned arrangement.
  • the base frame 1 serves, among other things, to accommodate the storage and drive of the turret plate and elements for actuating the press drive, which each interacts with a tool set located in the work station 6.
  • 7 denotes a coordinate table which is known per se and which, by means of aids not shown in the drawing, serves for the exact positioning of the generally planar workpiece, for example a sheet metal, relative to the work station 6.
  • a DNC control 8 which is accommodated in a control cabinet placed next to the base frame, is used for programming or controlling the cutting press.
  • the punches of at least individual tool sets 4 are profiled in the peripheral area and these tool sets 4 are about their respective longitudinal axes 9 in their receptacles rotatably received in the turret adjusters 2, 3 and for this purpose the turret adjusters are provided with special drive elements 10, which will be explained below and serve to individually drive these individual tool sets about their tool axes 9.
  • 12 denotes an electric motor which serves to drive both the turret plates 2, 3 around their axes 11 and the tool sets 4 around their axes 9 in a manner to be described in more detail below.
  • the motor 12 fixedly mounted in the base frame 1 is connected via a toothed belt 13 to an intermediate shaft 14 mounted in the base frame 1.
  • the connection is made via belt wheels 15, 16 arranged on the output shaft of the motor 12 on the one hand and the intermediate shaft 14 on the other hand.
  • the motor 12 is designed to be NC-controllable in a manner known per se and is operatively connected to the DNC controller 8 in a manner not shown in the drawing.
  • the intermediate shaft 14 mounted vertically in the base frame 1 is in turn connected via toothed belts 17, 17 'to pulleys 18, 18', the latter of which are arranged on the plate drive shafts 19, 19 'running in the direction of the axes 11'.
  • the connection of the toothed belt 17, 17 'to the intermediate shaft 14 is again via belt wheels 20, 20' arranged on the latter.
  • the belt drives which can be defined by the belt pulleys 19, 20 in connection with the belt drive 17 on the one hand and by the belt pulleys 19 ', 20' in connection with the belt drive 17 'on the other hand each serve the drive of the upper turret plate 2 and of the lower turret plate 3 and, moreover, as will be explained in the following, the rotary drive of individual tool sets 4.
  • the plate drive shafts 19, 19 ' are each received in bearings whose bearing housings 21, 21' are held in the base frame 1.
  • locking devices 22,22 ' which are also shown in more detail below.
  • Fig. 3 shows the structure of the upper turret 2 in an axial section.
  • the disk drive shaft 19 is mounted on the one hand via the bearing housing 21 accommodated in the base frame 1 or the radial bearing 26 associated therewith, and on the other hand via a radial axial bearing 27 which is only shown schematically, the latter being fastened to the underside of the turret plate 2 by means of screws 28 29 cooperates.
  • the partially reproduced in section tool set 4 of the upper turret plate 2 consists of a stamp 30 'containing stamp holder 30 which is guided non-rotatably within a socket 32.
  • the stamp 30 ' is movable in a conventional manner in the direction of arrows 31.
  • For the non-rotatable guidance of the stamp holder 30 is used in the periphery of the same spring 33, which within a, in the Groove 34 incorporated into the inside of the bushing 32 slides in the peripheral direction with as little play as possible.
  • the socket 32 is in turn inserted into a corresponding bore of the turret plate 2 and within it axially on the one hand by an annular body 36 attached to its upper end for gripping over the hole 35 and on the other hand by an outside of one on the underside of the turret plate 2 protruding part of the socket 32 engaging locking ring 37 secured.
  • the annular body 36 In its peripheral region, the annular body 36 has a toothing 38 which, in a manner still to be explained, serves to drive the tool set 4 about its axis 9.
  • the stamp 30 ' is provided on the top with a T-shaped head part 39 which is received in a correspondingly designed receptacle of the press ram 25.
  • holes 41 are arranged in uniform positions corresponding to the positions of the tool sets, which run parallel to the axis 9 of the tool sets and into each of which a receptacle bushing 42 is inserted, which interacts with the locking bolt 43 of the stationary locking device 22 is determined.
  • Numeral 44 denotes a gear wheel which is in engagement with the toothing 38 and which is freely rotatably mounted on a bearing bush 45 by means of a radial bearing 46, which bearing bush 45 is fastened to the turret plate by means of a screw 47.
  • the axis of the gear 44 runs parallel to the axis of the plate drive shaft 19.
  • Said gear 44 is also in engagement with a gear 48 arranged on the disk drive shaft 19 so as to be secure against rotation.
  • the insert ring 49 denotes an insert ring which is inserted in a recess 50 which is arranged near the axis of the turret plate 2 and is open on the upper side and towards the axis of the plate.
  • the insert ring 49 is connected at its radially outer end to the turret plate 2 by means of screws 51.
  • the underside 52 of the recess 50 is provided in the vicinity of the axis with an annular groove 53 which extends coaxially to the disk drive shaft 19 and is open in the direction of the insert ring 49 and into which an annular piston 54 is inserted.
  • the annular piston 54 which is provided with seals 55 radially on the inside and outside, is thus slidable within the annular groove 53 in the direction of the arrows 56.
  • a bore 57 running coaxially within the plate drive shaft 19 is used, from which a plurality of radial bores 56 branch off, which establish a connection between the bore 57 on the one hand and an annular space 59 on the other hand, which between the outside of the plate drive shaft 19 on the one hand and the Inside of the turret 2 on the other hand.
  • Said annular space is in turn connected via a series of radially extending channels 60 to the underside of the annular groove 53 in order to act on the annular piston 54.
  • Designated at 61 is an annular disk which is slidably inserted into a recess 63 machined into the underside 62 of the insert ring 49 and also coaxial to the axis of the disk drive shaft 19.
  • the washer 61 is placed on the plate drive shaft 19 in a rotationally secure manner via a splined connection 64 and, due to this connection, is slightly axially slidable.
  • a further radial bore inside the turret plate 2 is designated, which connects the annular groove 53 with the inside of the bore 35, so that leakage liquid occurring within the annular groove 53 is used to lubricate the bushing 32.
  • Fig. 4 shows a representation of the Fig. 3 corresponding representation of the lower turret, wherein comparable functional elements are denoted by a 'on the otherwise identical reference number, with no repeated description in this regard.
  • a die is designated, which is arranged axially immovable on the socket 32 ', but is non-rotatably connected to this.
  • the areal workpiece to be machined is designated by 67 only as an example.
  • the drive elements 10 for rotating the tool here the die 66
  • the die 66 are now on the underside of the lower turret plate.
  • the arrangement is otherwise a mirror image of the upper turret plate, so that the recess 50 'as well as the annular groove 54' are designed to be open towards the underside of the turret plate 3. Since the operation of the optional coupling of the plate drive shaft 19 'with the turret plate 3 or the socket 32' and thus the tool, here the die 66 otherwise corresponds to the corresponding mechanisms of the upper turret plate 2, a repeated description of the same can be omitted.
  • Fig. 5 which - apart from the nature of the respective tool - can be interpreted either as a top view of the top of the upper turret plate 2 or as a view of the bottom of the lower turret plate 3, reveals that all tool sets in the peripheral area of the Revolver plates are arranged on a common pitch circle 60.
  • four tool sets 4 are rotatably mounted about their axes, while the other, mutually different tool sets, which are collectively designated by the reference number 69, are not arranged rotatably about their respective longitudinal axes.
  • The, the connection between the central gear 48,48 'mediating intermediate gears 44,44' are in turn also on a common pitch circle 70th
  • FIG. 6 shows a top view of the upper revolver plate 2 a further embodiment of the drive elements 10 according to the invention, which is also used in an identical manner in the lower turret plate 3.
  • the central gear 48 has two, mutually offset by 180 o tongue and groove connections on the tray drive shaft 19 attached.
  • the bearing bush 45 is provided for receiving the screw 47 with an elongated hole 71, so that a certain adjustability of the exact position of the gear 44 is made possible in accordance with the dimensions of the elongated hole 71.
  • the toothing 38 is located on a toothed ring 72 which is screwed onto a circular ring carrier (not shown in the drawing), the latter forming an integral part of the bush 32.
  • the link between the toothed ring 72 and the said ring carrier is made via screws 73, which in turn penetrate elongated holes 74 of the toothed ring 72.
  • the elongated holes 74 are located along a common pitch circle and thus extend essentially coaxially with the axis of the tool set 4.
  • the adjustability of the central gear 44 and the toothed ring 72 resulting from FIG. 6 enables on the one hand an almost play-free coupling of the rotary movements of the gear 48 with the bushing 32 and on the other hand the setting of a precisely defined initial angular position of the bushing 32, for example in such a way that the The center of the tongue and groove connection 33, 34 is aligned with the center of the plate drive shaft 19.
  • the locking devices 22, 22 ' can be connected in terms of control technology to the said annular pistons 54, 54' so that the turret plates can always be freely rotated when the latter is pressurized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Press Drives And Press Lines (AREA)
EP19900104955 1989-05-12 1990-03-16 Poinçonneuse à révolver avec outil rotatif Expired - Lifetime EP0396876B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893915489 DE3915489C1 (fr) 1989-05-12 1989-05-12
DE3915489 1989-05-12

Publications (2)

Publication Number Publication Date
EP0396876A1 true EP0396876A1 (fr) 1990-11-14
EP0396876B1 EP0396876B1 (fr) 1993-06-30

Family

ID=6380492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104955 Expired - Lifetime EP0396876B1 (fr) 1989-05-12 1990-03-16 Poinçonneuse à révolver avec outil rotatif

Country Status (3)

Country Link
US (1) US5076127A (fr)
EP (1) EP0396876B1 (fr)
DE (2) DE3915489C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536412A1 (fr) * 1991-04-26 1993-04-14 Fanuc Ltd. Procede de changement d'outils dans une machine a poinconner
EP0583537A1 (fr) * 1992-08-20 1994-02-23 Murata Machinery Ltd. Dispositif permettant de découper dans diverses directions avec chaque outil d'un porte-outil à plusieurs outils
EP1634663A1 (fr) * 2004-09-10 2006-03-15 Rainer S.r.l. Machine à travailler la tôle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2584889B2 (ja) * 1990-07-26 1997-02-26 ファナック株式会社 パンチプレス機械の工具選択方法
JP3295105B2 (ja) * 1991-05-27 2002-06-24 株式会社アマダ パンチプレス機
IT1264302B1 (it) * 1993-12-24 1996-09-23 Rainer Srl Macchina per la lavorazione di una lamiera.
DE4411121C1 (de) * 1994-03-30 1995-03-23 Behrens Ag C Revolverschneidpresse
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
DE19855578C1 (de) * 1998-12-02 2000-09-21 Groz Beckert Kg Stanzeinrichtung mit wechselbaren Stempeln
JP4619049B2 (ja) * 2004-06-25 2011-01-26 株式会社アマダ パンチ金型
US8413561B2 (en) 2009-11-10 2013-04-09 Mate Precision Tooling, Inc. Multiple punch and die assembly
CN103506459B (zh) * 2013-09-18 2015-09-16 苏州科瑞机械有限公司 打齿机
CN106238544A (zh) * 2016-08-30 2016-12-21 洛阳润信机械制造有限公司 一种冲床

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449991A (en) * 1967-02-06 1969-06-17 Dennis Daniels Punch press
DE3020532A1 (de) * 1979-05-31 1980-12-11 Anritsu Electric Co Ltd Stanzpresse
US4285259A (en) * 1979-08-21 1981-08-25 Houdaille Industries, Inc. Turret index system
DE3441530A1 (de) * 1984-11-14 1986-05-22 C. Behrens Ag, 3220 Alfeld Aufnahmeeinrichtung fuer das werkzeug einer schneidpresse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131023A (en) * 1980-03-18 1981-10-14 Amada Co Ltd Turret punch press
AU555957B2 (en) * 1981-10-20 1986-10-16 Amada Company Limited Turret punch press
US4658688A (en) * 1985-09-13 1987-04-21 Strippit/Di-Acro - Houdaille, Inc. Rotary punch and die holders for turret punches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449991A (en) * 1967-02-06 1969-06-17 Dennis Daniels Punch press
DE3020532A1 (de) * 1979-05-31 1980-12-11 Anritsu Electric Co Ltd Stanzpresse
US4285259A (en) * 1979-08-21 1981-08-25 Houdaille Industries, Inc. Turret index system
DE3441530A1 (de) * 1984-11-14 1986-05-22 C. Behrens Ag, 3220 Alfeld Aufnahmeeinrichtung fuer das werkzeug einer schneidpresse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536412A1 (fr) * 1991-04-26 1993-04-14 Fanuc Ltd. Procede de changement d'outils dans une machine a poinconner
EP0536412A4 (en) * 1991-04-26 1993-10-20 Fanuc Ltd. Method of changing tools in punch press machine
EP0583537A1 (fr) * 1992-08-20 1994-02-23 Murata Machinery Ltd. Dispositif permettant de découper dans diverses directions avec chaque outil d'un porte-outil à plusieurs outils
EP1634663A1 (fr) * 2004-09-10 2006-03-15 Rainer S.r.l. Machine à travailler la tôle

Also Published As

Publication number Publication date
DE3915489C1 (fr) 1990-05-23
US5076127A (en) 1991-12-31
DE59001877D1 (de) 1993-08-05
EP0396876B1 (fr) 1993-06-30

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