EP2335841A1 - Procédé de fabrication de pièces pliées et outil correspondant - Google Patents

Procédé de fabrication de pièces pliées et outil correspondant Download PDF

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Publication number
EP2335841A1
EP2335841A1 EP09015634A EP09015634A EP2335841A1 EP 2335841 A1 EP2335841 A1 EP 2335841A1 EP 09015634 A EP09015634 A EP 09015634A EP 09015634 A EP09015634 A EP 09015634A EP 2335841 A1 EP2335841 A1 EP 2335841A1
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EP
European Patent Office
Prior art keywords
stage
embossing
blank
cutting
forming
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
EP09015634A
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German (de)
English (en)
Other versions
EP2335841B1 (fr
Inventor
Sven Dipl.-Ing. Hoftstetter
Willi Dipl.-Ing. Grimm
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.)
Feintool International Holding AG
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Feintool Intellectual Property AG
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Publication date
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Priority to EP09015634.0A priority Critical patent/EP2335841B1/fr
Publication of EP2335841A1 publication Critical patent/EP2335841A1/fr
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Publication of EP2335841B1 publication Critical patent/EP2335841B1/fr
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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
    • B21D28/06—Making more than one part out of the same blank; Scrapless working
    • 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
    • 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
    • B21D43/28—Associations of cutting devices therewith

Definitions

  • the invention relates to a method for producing bent parts, in which cut from a clamped between the upper and lower part of a tool strip a one-piece blank in a at least one guide plate, die, punch and ejector comprehensive fine cutting stage, the blank then in a forming stage in its predetermined Form cold bent and from this the finished part is discharged, the fineblanking stage is driven by a hydraulic system.
  • the invention further relates to a follow-on composite tool for producing bent parts a top and bottom part with at least one for cutting a blank from a strip strip provided fine cutting stage, which contains at least one guide or pressing plate, a die, a cutting punch and an ejector, and with a bending die, scraper and counter-bearing forming stage for bending the blank in a predetermined shape, wherein the fine cutting stage is connected to a hydraulic drive system and the tool holds the tape strip clamped in the closed state and releases in the open state.
  • switching elements such as fork legs and operating levers in one piece from a sheet metal strip by contour punching (see DE 102 12 245 A1 . DE 102 61 209 A1 ).
  • the fork legs and operating levers are bent and pressed into their predetermined shape and position by means of bending and forming tools in a cold forming process.
  • the sheet metal strip is fed by a coil of a punching and forming device, in which at the same time successive - depending on the type of processing, however, sometimes also simultaneously taking place processing steps, in particular stamping, bending and pressing are made.
  • the contour punching machining in one or more of the first stations initially remains limited to the punching of the essential parts of the shift fork and the Austanzen of the central portion of the fork back as a separating cut, with the shift fork is released from the sheet metal strip, takes place only in the terminal.
  • the invention has for its object to provide a method and a tool for producing bent parts, in which the step of deburring is integrated into the cutting and forming step, wherein the accuracy of the parts increases by eliminating the Trowal iss extends the life of the tool and parts and the cost is significantly reduced by saving the separate deburring.
  • the solution according to the invention is based on the knowledge of performing the fineblanking, deburring and bending operations within a common process in a progressive compound tool.
  • the invention is characterized in that the blank is fed after a complete re-cutting in the fine cutting stage an embossing step for embossing the ridge and then the forming stage, the cut blank completely remains in the cutting opening below the die plane and the blank after embossing in the embossing stage is held down by a force additionally generated with a separate drive system in a lying below the die plane of the fine blanking level until a cross slide is retracted horizontally into the open tool below the tape strip, then the retracted cross slide against the cutting direction of the cutting opening in a Recorded level above the Matrizenebene back blank and this by further displacement of the cross slide in the normal direction to the feed direction of the tape strip in the embossing stage and the previously embossed Zusc Spent in the forming stage spends, and that after the bending process
  • the cross slide in addition to its displacement function also the correct position supplying the blanks in the respective embossing stage and forming stage, so that the blanks position accurately in the respective stages and can be centered by spring force.
  • a further advantage is that the steps of the method according to the invention can be carried out in a progressive tool within a working stroke, whereby the investment costs compared to the prior art significantly reduce productivity and can be increased while increasing the accuracy of the parts.
  • embossing dies are used for burr embossing, which have a defined embossing radius. This ensures that the radius impressed on the cutting contour is very constant compared to the tumbling and has a uniform surface structure.
  • At least two blanks arranged side by side can be completely cut out of the strip strip in separate fine cutting steps at the same time.
  • at least two cross slides are present, which operate in opposite directions with respect to the feed direction of the tape strip at 90 °.
  • each fineblanking stage is associated with an embossing step upstream of the forming step, the embossing step and the forming step being connected to an additional driven system for separately feeding the blank with an additional force for temporarily holding the blanks in the embossing step below a plane of the die plane and for ejecting are connected to the finished bending part of the forming stage, and that embossing step and forming stage are arranged with respect to the fine cutting stage normal to the feed direction of the tape strip and coupled by a common cross slide, with the tool open between the upper and lower part below the tape strip horizontally in alignment of the die plane for detecting and moving the blank from the fine cutting step to the embossing step and from the embossing step to the forming step as well as for discharging the finished bending part from the
  • the cross slide is after its retraction in a arranged such position for fine blanking stage and embossing stage that he capture the completely cut, pushed back from the cutting opening of the die by the ejector in the die plane blank and with its horizontal movement the blank at 90 ° to the advancing movement along the located below the strip strip die level in the opposite the fine cutting stage in the direction of displacement movement outwardly arranged, at least stamping die, inner mold punch, holding punch and Subgeambos composite embossing stage for embossing the ridge on the cutting contour of the blank and in the opposite to the embossing stage turn outwardly offset in the direction of displacement movement arranged forming stage, the latter connected to a ramp for free-falling discharge of the finished bent part from the tool.
  • a further preferred embodiment of the tool according to the invention provides that at least two successively arranged in the feed direction of the tape strip fine cutting stages are provided, the embossing steps and forming stages are arranged to each other in the normal direction to the feed direction of the tape strip, the cross slide these stages are aligned in opposite directions to each other.
  • the solution according to the invention if only one fine cutting step, one embossing step and one forming step are provided for bending, to which a single transverse slide is assigned.
  • the embossing stage has at least one upper and lower drive system and the forming stage at least one further drive system, which are independent of each other, whereby a separate loading of the active elements of embossing stage and forming stage is made possible.
  • the additional drive systems can be hydraulically, pneumatically or mechanically driven without departing from the invention.
  • the cross slide has a flat planar shape, which is provided with two successively, in the feed direction receiving openings, which are adapted to the shape of the blanks.
  • a receiving opening in the cross slide of the fine cutting stage and the embossing stage, the other receiving opening, however, associated with the forming stage, the receiving opening for the fine cutting stage and the embossing stage circumferentially closed and the receiving opening for the forming stage is frontally open.
  • the receiving openings of the cross slide are provided with fixing elements that hold the blanks positionally accurate during the move and correct position of each stage perform.
  • the die has a defined embossing radius. This ensures that the burr embossed cutting contour obtains a high degree of uniformity and accuracy.
  • Fig. 1 a plan view of the tool according to the invention with each arranged perpendicular to the tape feed direction fine cutting stages, embossing stages and bending stages, the cross slide work in opposite directions,
  • Fig. 2a and 2b a perspective view of the blank and the finished bent part
  • Fig. 3 a perspective view of the lower part of the progressive compound tool according to the invention
  • Fig. 4a to 4c each a schematic sectional view of fineblanking stage, embossing stage and bending stage in the open state of the tool
  • Fig. 5a to 5c a schematic sectional view of fineblanking stage, embossing step and bending stage in the closed state of the tool between the upper and lower part clamped tape strips and blanks,
  • Fig. 6a to 6c the fineblanking stage Beginning of cut, the embossing step after centering of the blank and the forming step during the bending process in a schematic representation
  • Fig. 7a to 7c the fineblanking stage with fully cut blank, the embossing step with burr-embossed blank and the forming step with ready-cut blank in schematic representation with the tool closed,
  • Fig. 8a to 8c the fine-cutting stage with fully cut blank, the embossing step with burr-embossed blank and the forming stage with finished bent bending part in a schematic representation with the tool open,
  • Fig. 9a to 9c a schematic representation of fine blanking stage, embossing stage and forming stage with detected by the retracted cross slide blanks
  • the Fig. 1 shows in plan view an example of a progressive compound tool 1, with the bending parts 2, for example, as in Fig. 2 illustrated shift rails for automatic transmission of a car made of metallic material, to be produced by the novel process.
  • the follow-on composite tool 1 comprises in this example a fine-cutting stage 3, an embossing stage 4 and a forming stage 5, which are interconnected by a cross-slide 6 (see Fig. 3 ) are coupled.
  • two fine cutting stages 3 are provided, which are arranged so close to each other that from the reel, not shown supplied strip of tape 7 two blanks 8 can be cut for the shift rail simultaneously in a complete fine cutting process.
  • the contour of the bending part 2 is completely cut out in the fine cutting stage 3.
  • Each fine cutting stage 3 are thus associated with a stamping stage 4 and a forming stage 5.
  • the respective blanks 8 are supplied to a perpendicular to the feed direction VR of the tape strip 7 outwardly laid embossing step 4 for embossing of the resulting fineblanking burr and then the forming stage 5 for performing a bending operation on the embossed blank 8.1 in its intended final shape as a bent part 2.
  • the forming stage 5 is in turn arranged offset relative to the embossing stage 4 to the outside, so that the finished bending parts 2 can be removed by ramps 9 twice falling from the tool.
  • embossing stage 4 and bending stage 5 it is also part of the solution according to the invention, if only ever one fine cutting stage 3, embossing stage 4 and bending stage 5 is present.
  • Fig. 2a shows the completely cut out of the tape strip 7 flat blank 8 in the state before the burr embossing and the forming operation.
  • the blank 8 has an elongated portion 10 with ends 11 and 12, wherein the ends 11 and 12 lie on a common longitudinal axis A.
  • the middle region of the section 10 merges into a tab-like projection 13.
  • the Fig. 2b represents the state of the reshaped blank as a finished bent part 2 in its final form, ie after the burr embossing and the bending operation.
  • the tab-like projection 13 is bent at a defined angle whose deviation from the angle specification must be very low.
  • the fineblanking step 3, the embossing step 4 and the forming step 5 are coupled by the cross slide 6, ie the cross slide 6 detects the blanks 8 completely cut in the fine cutting step 3 and transports the blanks 8 to the embossing step 4 and the blank embossed blank 8.1 to the forming step 5
  • Fig. 3 shows a perspective view of a lower part 14 of the progressive tool 1 with according to the fine cutting stage 3, embossing stage 4 and bending stage 5 associated transverse slides 6.
  • the cross slide 6 are formed with open tool between the upper part 15 and lower part 14 on the die plane ME below the plane of the tape strip 7 movable and are slidably guided along the fine cutting stage 3, the embossing step 4 and the forming stage 5 on guide rails 16, wherein the transverse slide 6 are each arranged perpendicular to the feed direction VR of the tape strip 7 and offset from each other according to the positions of the two fine cutting stages 3.
  • the pneumatically or otherwise driven cross slide 6 work in opposite directions, ie they detect the blanks 8 and perform these opposite the fineblanking stage 3 each vertically outwardly staggered embossing stage 4 and forming stage 5 to.
  • the fineblanking stage 3, the embossing stage 4 and the forming stage 5 are positioned far enough from each other so that the cross slide 6 can spend the blanks 8 and 8.1 of the fineblanking stage 3 in the embossing stage 4 and of the embossing stage 4 in the forming stage 5 in time of the opening of the tool ,
  • the cross slide 6 has an elongated flat shape and has in its flat flat portion 17 a well-closed receiving opening 18 for encompassing of the fine cutting stage 3 completely cut out Blank 8, wherein the receiving opening 18 is adapted to the shape of the blank 8.
  • the receiving opening 18 is provided with fixing elements 19, for example claws, which allow a positionally correct fixing of the blank 8 in the receiving opening 18.
  • the receiving opening 18 has approximately the shape of in Fig. 2a
  • a further receiving opening 20 which is opposite to the receiving opening 18 to the bending stage 5 out offset in the cross slide 6 and open to the outside, so that after the bending process in the forming stage 5, the finished bent part 2 can be removed by the respective ramp 9.
  • Fig. 4a to 4c is the basic structure of the fineblanking stage 3, embossing stage 4 and bending stage 5 of the progressive tool 1 in the open state shown schematically.
  • the fineblanking stage 3 consists essentially of a guide plate 21, a die 22, a cutting punch 23, ejector 24, inner mold punch 25 and an ejector 26 which are arranged according to their function to be exercised in the upper block or sub-block of the progressive tool 1.
  • the guide plate 21, the cutting punch 23, the ejector 24, inner mold punch 25 and ejector 26 are connected via corresponding piston / cylinder units not shown with a hydraulic system 27 which generates the corresponding pressure forces for the fine cutting operation and the active elements applies.
  • the fine-cutting stage 3 corresponds to the known prior art, so that it is possible to dispense with a more detailed illustration. In the following, only the special features of the fineblanking stage are highlighted.
  • the hydraulic system 27 of the fine cutting stage 3 is designed so that the guide plate 21 and the ejector 26 are held under pressure when opening the progressive tool 1, so that the stripping of the stamped grid and the expulsion of the Butzens 28 takes place immediately and the slugs 28 on the die plane remain lying in order to be removed with the cross slide 6 when retracted from the progressive tool 1.
  • the embossing step 4 (see Fig. 4b ) comprises a bell-shaped embossing punch 30 which is fixedly connected to the pressure plate 33 with the top block 31.
  • the ejector 36 is guided vertically, in which the inner mold embossment 37 is guided, which also stands firmly on the pressure plate 33.
  • the ejector is connected via compression springs 35 and the pressure plate 34 with the auxiliary hydraulic 32.
  • a lower additional hydraulic system 39 is provided, which acts on the embossing team 40 via a piston not shown in order to press the embossed blank 8.1 controlled at a later time after retraction of the cross slide 6 in the fixing elements 19.
  • an internal punch 41 for stamping a defined draw in on the inner contour of the blank 8.1 and a holding punch 42 in the vertical alignment of the stamp 30 for the outer contour are guided in a sliding manner, wherein inner form stampers 41 and retaining stamps 42 are firmly on a pressure plate on the sub-block 38.
  • Embossing dies 30, inner embossing dies 41 and holding dies 42 can have different embossing radii, which are selected according to the desired geometrical relationships of the inner and outer contours of the bent parts 2.
  • the cross slide 6 is located in retracted non-engagement position PA outside the engagement zone of the die 30, inner form stampers 41 and retaining stamp 42nd It is understood that the upper and lower auxiliary hydraulics 32 and 39 can be replaced by a pneumatic or mechanical drive system, without departing from the invention.
  • the forming stage 5 contains as Fig. 4c shows a scraper 43 and a punch 44, which are resiliently fixed in a mounted on the top block 31 pressure plate 45 in each separate bearings 46, wherein the spring axis FA of the scraper 43 and the spring axis FB of the punch 44 are aligned perpendicular to each other.
  • Forming stage 5 further includes an abutment 47 and an about the axis B in the ejector pivotally formed bending jaw 48 and an ejector 49, by a provided in the sub-block 38 of the forming stage 5 further lower auxiliary hydraulics 50 vertically above or below the die plane ME of Fine cutting stage 3 is retractable and extendable.
  • the bending jaw 48 By retracting the auxiliary hydraulic 50, the bending jaw 48 is pivoted about the axis B by means of the abutment 47. In this case, the embossed blank 8.1 between the ejector 49, the punch 44 and the wiper 43 is clamped.
  • the extension of the auxiliary hydraulic 50 is carried out simultaneously as the auxiliary hydraulic system 39 of the embossing stage 4, to press the finished bending part 2 of the> forming stage 5 in the transverse splitter 6, so that the part can be subsequently applied via the ramp 9
  • the lower auxiliary hydraulic 50 of the bending stage 5 is also a pneumatic or mechanical drive can be used.
  • the inventive method runs according to the in Fig. 4a to 9c shown steps as follows.
  • the follow-on composite tool 1 is open.
  • the upper block 31 and the tape strip 7 are located in a plane substantially above the die plane ME arranged level.
  • the cross slide 6 is extended from the fine cutting stage 3, the embossing stage 4 and the forming stage 5, ie it is located in the rear disengaged position PA.
  • a cut-to-size cutout 8.1 is located for stamping the burr on the cutting contour.
  • Such a ridge embossed blank 8 was also stored by the cross slide 6 in the forming stage 5 for bending.
  • the die plane ME of the fineblanking stage 3, the recuperatorambosebene GE of the embossing stage 4 and the Biegebackbene BE of the forming stage 5 match (see Fig. 4a to 4c ).
  • the tool is ready for the stroke.
  • Fig. 5a to 5c is the follow-on composite tool 1 shown closed and the tape strip 7 and the blanks 8 and 8.1 are clamped between the upper part 15 and lower part 14.
  • the closing of the tool takes place by approaching the lower part 14 to the upper part 15.
  • the tape strip 7 is clamped between guide or pressing plate 21 and the ejector 24.
  • the blank 8.1 in the embossing stage 4 is between ejector 36th and inner form stampers 41 clamped and in the forming stage 5, the scraper 45 and the punch 45 is centered with respect to the ridge embossed blank 8.1 by the resilient bearings 46.
  • the bending process begins.
  • Fig. 6a to 6c show the beginning of the cut in the embossing step 3, wherein the cutting punch 23 has run back through the force acting on the ratchet hydraulic system 27.
  • the blank 8.1 is centered by the springs 35 in the bending punch 30.
  • Embossing stamp 30 and inner mold embossing 41 and the holding stamp 42 are ready to intervene.
  • the forming stage 5 of the bending operation which is triggered by a pivoting of the bending jaw 48 about the axis B due to the effectiveness of the auxiliary hydraulic 50 and the thrust bearing 47.
  • the cutting punch 23 has cut out the blank 8 on all sides from the tape strip 7.
  • the blank 8 lies in the cutting opening of the die 22 below the die plane ME.
  • the blank 8.1 is flash-embossed on its outer contour and inner contour and lies above in alignment of the die plane ME in the forming stage 5.
  • the bending process is completed (see Fig. 7b and 7c ).
  • the progressive tool 1 is shown by moving the lower part 14 from the upper part 15 in the open state ( Fig. 8a to 8c ).
  • the completely cut-out blank 8 is fixed in the cutting opening of the die 22 in a plane below the die plane ME ( Fig. 8a ) and the ridge-embossed blank 8.1 is held down in this plane by an additionally hydraulically generated spring force ( Fig. 8b ).
  • the finished bent part 2 was moved to a position well below the die plane ME by means of the auxiliary hydraulic 50 during the bending operation ( Fig. 8c ).
  • the additional hydraulic 32 in the top block 31 of the embossing stage 4 is not switched off in the open state of the tool and thus acts on the blanks 8 and 8.1 as a hold-down force, so that the blank 8.1 comes to lie below the die plane ME, and on the other hand, the auxiliary hydraulic 50 causes the lowering of the blank 8.1 when bending below the die plane ME.
  • the die plane ME is thus exposed below the tape strip 7 and allows the horizontal retraction of the cross slide 6 from its disengaged position PA (see Fig. 4a to 4c ) in a position for receiving the blanks 8 and 8.1 and the finished bending part. 2
  • the Fig. 9a to 9c illustrate the step of horizontal retraction of the cross slide 6 along the die plane ME in the open progressive die 1.
  • the cross slide 6 is moved by a pneumatic actuator not shown so far with its receiving openings 18 and 20 horizontally to the latter centered on the fine cutting stage 3 and the embossing stage. 4 are positioned and the respective receiving openings the respective blanks 8 and 8.1 can encompass or capture, wherein the slug 28 is pushed out of the tool.
  • the blank 8 is pushed back out of the cutting opening of the die 22 from the plane below the die plane ME into the plane above the die plane ME.
  • the blank 8 is then in the receiving opening 18 of the cross slide.
  • the lower auxiliary hydraulic system 39 has vertically raised the blank 8.1 embossed in the embossing stage 4 via the piston and the embossing team 40 so that the blank 8.1 lies in alignment with the plane above the die plane ME and can be grasped by the receiving opening 20 of the transverse slide 6 ( Fig. 9b ).
  • the actuated by the lower auxiliary hydraulic 50 ejector 49 in the forming stage 5 has the finished bent part 2 in alignment over the die plane ME vertically raised so far that the bent part 2 is above the die plane ME.
  • the cross slide 6 then proceeds as far as the receiving opening 18 is located centrally above the embossing step 4 and the blank 8 can be stored in the embossing stage 4 correct position.
  • the further receiving opening 20 of the cross slide 6 has the ridge embossed blank 8.1 at the same time shifted positionally correct in the forming stage 5, where the blank is 8.1 centered and bent.
  • the finished bent part 2 is discharged via the ramp 9. The tool closes and the next stroke can begin.
  • the burr embossing in the embossing stage 4 allows the removal of the burr within a process, resulting in edge rounding with uniform surface structure at the cutting edge and precise radius of the cutting edge.
  • the precision and accuracy of the bending parts is increased.
  • the removal of the burr within the machining process within the tool further leads to the tool life increase.
  • the inventive method leads to a very stable Production with high reproducibility, since all dimensions are tool-bound. The costs for quality assurance are reduced and the test cycle can be extended accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP09015634.0A 2009-12-17 2009-12-17 Procédé de fabrication de pièces pliées et outil correspondant Active EP2335841B1 (fr)

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EP09015634.0A EP2335841B1 (fr) 2009-12-17 2009-12-17 Procédé de fabrication de pièces pliées et outil correspondant

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EP2335841A1 true EP2335841A1 (fr) 2011-06-22
EP2335841B1 EP2335841B1 (fr) 2017-08-16

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102389924A (zh) * 2011-10-10 2012-03-28 扬州广菱电子有限公司 大尺寸浅拉深钣金件级进模
EP2543450A1 (fr) * 2011-07-08 2013-01-09 Cie Automotive, S.A. Machine et procédé à decouper de parties de tôles
WO2013029971A1 (fr) * 2011-09-02 2013-03-07 Robert Bosch Gmbh Système à leviers de tension, procédé de fabrication d'un levier de tension et appareil de commande
CN103920819A (zh) * 2014-05-07 2014-07-16 安徽江淮汽车股份有限公司 用于汽车冲压件的级进模
DE102018102929B3 (de) 2018-02-09 2019-03-21 Johannes Hülshorst Vorrichtung und Arbeitsverfahren zur Herstellung eines Metallhaltebügels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019008085A1 (de) 2019-11-21 2020-08-06 Daimler Ag Werkzeug zum Schneiden eines Kraftwagenrohbauteils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128194A1 (de) * 1991-08-24 1993-03-04 Rohde & Schwarz Vorrichtung zum automatischen herstellen von blechteilen
DE10212245A1 (de) 2002-03-19 2003-10-16 Ise Ind Gmbh Schaltgabel für Getriebe, insbesondere Kfz-Getriebe und Herstellungsverfahren für eine Schaltgabel
DE10326870B3 (de) 2003-06-14 2005-02-03 Dieter Kirschdorf Verfahren zur Herstellung eines Getriebeschaltelements aus Metall
US20080053181A1 (en) * 2006-09-01 2008-03-06 Paul Frauchiger Method and tool for the production of three-dimensional attachments by forming and fine blanking operations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128194A1 (de) * 1991-08-24 1993-03-04 Rohde & Schwarz Vorrichtung zum automatischen herstellen von blechteilen
DE10212245A1 (de) 2002-03-19 2003-10-16 Ise Ind Gmbh Schaltgabel für Getriebe, insbesondere Kfz-Getriebe und Herstellungsverfahren für eine Schaltgabel
DE10261209A1 (de) 2002-03-19 2004-07-01 Ise Industries Gmbh Schaltgabel für Getriebe, insbesondere Kfz-Getriebe und Herstellungsverfahren für eine Schaltgabel
DE10326870B3 (de) 2003-06-14 2005-02-03 Dieter Kirschdorf Verfahren zur Herstellung eines Getriebeschaltelements aus Metall
US20080053181A1 (en) * 2006-09-01 2008-03-06 Paul Frauchiger Method and tool for the production of three-dimensional attachments by forming and fine blanking operations

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2543450A1 (fr) * 2011-07-08 2013-01-09 Cie Automotive, S.A. Machine et procédé à decouper de parties de tôles
WO2013029971A1 (fr) * 2011-09-02 2013-03-07 Robert Bosch Gmbh Système à leviers de tension, procédé de fabrication d'un levier de tension et appareil de commande
CN102389924A (zh) * 2011-10-10 2012-03-28 扬州广菱电子有限公司 大尺寸浅拉深钣金件级进模
CN102389924B (zh) * 2011-10-10 2014-11-05 扬州广菱电子有限公司 大尺寸浅拉深钣金件级进模
CN103920819A (zh) * 2014-05-07 2014-07-16 安徽江淮汽车股份有限公司 用于汽车冲压件的级进模
DE102018102929B3 (de) 2018-02-09 2019-03-21 Johannes Hülshorst Vorrichtung und Arbeitsverfahren zur Herstellung eines Metallhaltebügels

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