EP0041690A2 - Machine-outil à plusieurs étages travaillant le métal par formage - Google Patents

Machine-outil à plusieurs étages travaillant le métal par formage Download PDF

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Publication number
EP0041690A2
EP0041690A2 EP81104252A EP81104252A EP0041690A2 EP 0041690 A2 EP0041690 A2 EP 0041690A2 EP 81104252 A EP81104252 A EP 81104252A EP 81104252 A EP81104252 A EP 81104252A EP 0041690 A2 EP0041690 A2 EP 0041690A2
Authority
EP
European Patent Office
Prior art keywords
coupling
pliers
forming machine
station
axis
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
EP81104252A
Other languages
German (de)
English (en)
Other versions
EP0041690B2 (fr
EP0041690B1 (fr
EP0041690A3 (en
Inventor
Ulrich Steinhauser
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.)
Hatebur Umformmaschinen AG
Original Assignee
Hatebur Umformmaschinen 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6104229&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0041690(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hatebur Umformmaschinen AG filed Critical Hatebur Umformmaschinen AG
Priority to AT81104252T priority Critical patent/ATE6834T1/de
Publication of EP0041690A2 publication Critical patent/EP0041690A2/fr
Publication of EP0041690A3 publication Critical patent/EP0041690A3/de
Application granted granted Critical
Publication of EP0041690B1 publication Critical patent/EP0041690B1/fr
Publication of EP0041690B2 publication Critical patent/EP0041690B2/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • 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
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • 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
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips
    • B21K27/04—Feeding devices for rods, wire, or strips allowing successive working steps

Definitions

  • the present invention relates to a multi-stage forming machine for the chipless shaping of blanks, which are at the transition from one station to the adjacent station rotated with respect to a plane extending transversely to the longitudinal extent of the blanks and transversely to the pressing direction of the axis of rotation to practically 90 0, where for the transport of the blanks between the two A pair of pliers is provided in adjacent stations, the two pliers of which are fastened to guide parts via pliers carriers, which in turn are rigidly coupled to a main shaft which is driven back and forth and oscillates about its own axis.
  • the starting material is pulled in the direction of the press axis next to the press slide against a stop and sheared off with a shear knife.
  • the shear carriage also serves as a feed for the sheared blank in front of the 1st forming station or in a loading station, the longitudinal axis of the blank remaining parallel to the press axis.
  • an apparatus for rotating a blank about virtually 90 0 to propose that rotates the blank at the beginning of the translational movement to larger angular units, as in the last section of the same, so that the blank halfway, for example, already at considerably more than 45 degrees, was 60 0, eg rotated.
  • the device is also to be distinguished from the known designs by its structural simplicity.
  • a lower die holder 2 with four recesses for receiving dies is attached to a press frame 1.
  • Four die holder covers 3, 4, 5 and 6 are attached above it.
  • Clamp carrier boxes 7a, 7b are located above and below these die holders. These pliers carrier boxes are each attached to a shaft 8 by means of a clamp connection and have the task of connecting the pliers to be described with the shafts 8, of which only the upper one is visible.
  • Each of these shafts 8 is rotatably and longitudinally displaceable in the press frame 1 and both are exactly in the same direction in the direction of the arrow "A” or in the opposite direction in the direction of the arrow "B", "A” being a translational movement in the direction of the shaft axis 93 and "B” an angular movement represent around the same axis.
  • the drive mechanism transmits to these shafts the movement which is necessary to transport the compacts from one forming station to the next and to empty return.
  • This sequence of movements takes place in two parts: on the one hand as a transverse transport movement of the compacts from one die to the other (arrow A), on the other hand for opening and closing the pliers or for gripping or releasing the compacts (swiveling movement around shaft 8, arrow B).
  • Three pairs of pliers 9, 10, 11 are releasably attached to the front of the pliers carrier box 7a, 7b. While the pairs of pliers 10 and 11 now correspond to the known shape and are provided with fixed lower grippers 12 and spring-supported upper grippers 13, the first pair of pliers was replaced by a rotatable device 9a and 9b, respectively.
  • the wire or rod is retracted in the axis 14 in the direction of the arrow against an adjustable stop (not shown), which sets the section length, and is sheared off with the shear knife 15 shown schematically.
  • the sheared section is held in place by a device (not shown) on the shear knife 15 and brought to the first station.
  • this is not the first forming station, but a pure holding station, in which the section is held until it is taken over by the pliers 9a / 9b.
  • a spring protruding and spring-supported from the first punch tool of the advancing press slide pin 16 presses the sheared blank 17 out of the holding device on the shear knife against a stop pin 18, which instead of a l. Matrix was installed in the opening provided.
  • the holding pin 16 holds the blank until the pair of pliers, designated as a whole by 9, which has moved into the left end position with the transverse transport carriers, has gripped the latter by the pivoting movements “B”, while the press carriage, which is not visible and is to be thought in front of the drawing plane goes back to its rear position, and thus also pulls back the holding pin 16.
  • the cross transport beams are now moved to their right end position.
  • an upper and a lower gripper 19 or 20 which is rotatable in the bearing holders 22a and 22b, rotates through 90 ° about the vertical axis 21.
  • This gripping movement is obtained by a spatial, ie three-dimensionally movable two-stroke gear 23a and 23b , which has the function of a guide gear and whose task is to inevitably guide the pliers 9 holding the blank 17 during their translation movement so that on the one hand there is a rotation of the blank by 90 ° with respect to the vertical axis 21 and on the other hand this rotation to the translatory movement is coordinated so that a large part of the angular movement already takes place in the first half of the translatory tong path.
  • the aim of this is to ensure that the guide gear required for its movement takes up the smallest possible space and, in particular, no, or only insignificant, structural changes, such as recesses, have to be made on the adjacent die housings.
  • Each of the spatial two-stroke transmissions is composed of a link 24 and a coupling 25.
  • the link 24 has a bearing at its rear end on sleeve, which is rotatably mounted on a fixed pin, according to FIG. 5 about the axis 28.
  • the connection between the link 24 and the coupling 25 forms a ball joint 30, while the coupling 25 has at its other end a pivot which engages in the part 9c (top) or 9d (bottom) of the device 9 which can be pivoted about the axis 21 and there is rotatably supported about the axis 29a (top) or 29b (bottom).
  • Fig. 2 shows schematically the representation of the sequence of movements of the spatial two-stroke gear, projected onto a horizontal plane.
  • the solid lines show the position of the guide mechanism when the transverse transport is in the right end position, the pellet 17 is located so rotated 90 0 prior to the forming station, while in dashed lines, the left end position is shown, the compact thus is still capable how it was brought into the charging station by the clipper.
  • the handlebar 24 is thus rotatably attached at one end to a fixed bearing about the vertical axis 28. This enables the other end, which is connected to the coupling 25 by the ball joint 30, to move on a circular arc 31, dash-dotted in FIG. 2.
  • the coupling 25 is provided at its gripper-side end opposite the ball joint 30 with a pivot which engages in the part 9c or 9d 'of the device 9 which can be rotated about the vertical axis 21 and is rotatable about the axis 29a / 29b.
  • the pliers carrier which is guided in a straight line by the shaft 8, moves from the left end position (the two-stroke gear 23 is therefore in the position shown in broken lines) into the right one (drawn out in FIG. 2).
  • End position the pliers rotation axis moves from 21 'along the line 32 to 21 and the ball joint point follows the circular arc 31 from 30' to 30.
  • the selected geometry makes the coupling 25, which is on the one hand on the arc 31 and on the other hand on the straight line 32 is rotated by 90 °, at least as long as the gear (as shown in FIG. 2) moves in the projection plane, represented by the distance 25a 'or 25a. Since the pivot pin, which forms the axis 29 and is fastened in the coupling 25, engages in the device 9 which can be rotated about the vertical axis 21, it is thus also rotated through 90 °.
  • FIG. 6 shows the takeover of the turned blank 33 by the spring pin 35 and the die 36 installed in the second punch 34 of the press slide.
  • the blank 33 is removed from the pliers jaws 37, 38 by the spring pin or springs 35 pressed until the blank rests on the engraving 39 of the die.
  • the shape of the pliers jaws 37, 38 is designed such that the blank can be ejected on the die side, but is guided until it is pressed against the engraving 39 of the die 36, while it rests on a shoulder 40 on the other side .
  • the upper and lower pliers carrier box pivot about the shaft 8 by a certain amount, (arrow B, Fig.
  • Fig. 6 shows the jaw design for the largest (dash-dotted) and the smallest blank.
  • the surfaces between the pads 41 (Fig. 4) are slanted to prevent dirt from accumulating.
  • FIG. 4 shows a central vertical section through the pair of pliers 9.
  • a bearing holder 43 is screwed onto the plier carrier box 7b by means of screws 44.
  • In the bearing holder 43 there are two plain bearing bushes 45 in which the rotating part 46 of the pliers unit is mounted. The axial position results from a shoulder 47 and a cover 48 screwed onto the lower end of the rotating part 46. Above the mounting of the rotating part 46, this has an opening for a bearing bush 49, in which a pin 50 rotatably engages, which firmly engages with the Coupling 25 is connected.
  • the coupling 25 could encompass the pin 50 in a fork-like manner from both end faces. In order to rule out the risk of contamination, the coupling 25, as can be seen in FIG.
  • a housing 51 which rearwardly a slot s - has, and which serves as a holder for the ball pivot pin 52 (Fig. 5).
  • the bullet Articulated pin 52 surrounds a ball 53.
  • the handlebar is provided with a spherical cap 53a, which surrounds the ball 53 and can be rotated relative to it in a known manner.
  • the jaw holder 55 has a slot 56, so that the jaw holder 55 engages over the two surfaces 54. This ensures the correct position of the jaw holder 55 relative to the rotating part 46 and the two parts are secured against relative rotation.
  • a clamping sleeve 57 is used, by means of which the rotating part 46 and the jaw holder 55 are fixed, i.e. be connected torsionally rigid.
  • an adjusting screw 58 is used, which is screwed into an eyelet 59 which is firmly connected to the clamping sleeve 57, and which can be rotated after loosening a locking nut 60 and a clamping screw 61, and thereby the height of the stop 62 on the jaw holder 55 is molded, adjusted.
  • the pliers jaw 63 which is used to hold the blank 64, is screwed onto the pliers jaw carrier with a screw 65, and corresponding guide surfaces ensure the correct position.
  • the upper half of the pliers is basically the same as the lower one, but has the difference that it is spring-loaded in the axial, ie vertical, direction. Therefore, the upper jaw holder 66 with a sleeve 67, which is only coupled to the rotating part 68 with a clamp connection, is mounted in a sleeve 69 so as to be longitudinally displaceable.
  • a spring 70 in a central bore of the pliers jaw carrier is pressed, this and thus the pliers jaw 71 presses on the blank 64.
  • the spring travel X is set by turning a screw 72 after loosening a lock nut 73.
  • a cross pin 96 is installed at the upper end of the jaw holder 66.
  • the attachment to the upper jaw holder is the same as below, as is the rotary drive.
  • the die holder 2 must be in the area of the l.
  • Matrix must be provided with a recess 74 (FIGS. 1 and 4).
  • FIG. 5 shows, using a vertical section, the fixed bearing of the lower spatial two-stroke rotary drive.
  • a console 75 is screwed to the die holder 2 at the bottom. With this console 75, which serves as an assembly aid, a holding plate 76 is detachably connected.
  • a bearing journal 77 is rigidly connected to this holding plate 76.
  • the link 24 provided with a bearing bush 78 is placed over the bearing journal 77 and secured with a cover 79 screwed onto the bearing journal 77.
  • the bearing bush 78 is provided with a seal 80 at the top, while the bearing is closed at the bottom with a cover 81.
  • This bearing allows the handlebar 24 to rotate about the axis 28 (FIG. 2).
  • FIG. 4 At the other end of the link 24, the ball joint can be seen, which has already been described under FIG. 4. It can be seen here how the ball joint pin 52 is fastened to the housing 51 with a conical pin 82, which is firmly connected to the coupling 25.
  • the upper fixed bearing is mounted on a bracket 26 (Fig. L). This is pressed onto the die holder cover 3 by a hydraulically actuated cylinder 27, which at the same time serves to pivot the upper pliers carrier box 7a, and is thus held stationary.
  • the stop 18 is mechanically or electrically coupled to the section length adjustment so that the position of the stop 18 always corresponds to the section length and the center of gravity of the blank is always the same distance from the front of the die as the axis of rotation 21 of the rotating device 9.
  • Fig. 3 shows the sequence of movements of the rotating blank.
  • the blank 83 lies against the stop pin 18, which is installed in a filler 84, which is used in the opening provided instead of the normal forming die.
  • the filler 84 is set back from the normal die front edge to leave room for the long blank. From the figure it can be seen that the rotating blank 85 with the dies holder 2 would collide. A recess 86 is therefore arranged there.
  • the die 87 inserted in the second station also has a small adjustment 88.
  • This adjustment 88 can be kept so low because the blank, because of the choice of the spatial two-stroke as a rotary drive and because of the geometrical arrangement of the joints, before going through half the translational stroke by much more than 45 °, in the present example by about 60 0, is rotated. As a result, the die 87 experiences practically no restriction and is therefore a fully-fledged forming die.
  • the upper tong holder box 7a can be swung up around the shaft 8 (FIG. 1).
  • the shaft 8 is uncoupled from the drive mechanism, not shown, and pushed beyond the left starting position (first pliers before first die) until the projecting profile piece 90, which is a continuation of the shaft 92 on which the bearing bracket 26 is attached, and which in is mounted on the same axis 93 as shaft 8, into which fitting opening 91 projects.
  • the upper tong holder box 7a can be pivoted up with the cylinder 27.
  • the bearing bracket 26 also rotates, including the rotary drive 23.
  • the upper tong holder box 7a can thus be pivoted up without problems.
  • the rotatable device 9 can be replaced by an original pair of pliers (version 10, 11 Fig. L).
  • the rotary drive 23 remains on the pliers units, ie the upper one is separated from the bearing bracket 26 by loosening the screws 95, while the lower rotary drive is released by loosening the screws 95 (FIG. 5) is separated from the guide device. This ensures a quick changeover for forming conventional parts.
  • a holding station 1 was switched on between the shearing station and the first forming station II, the main function of which is to hold the sheared section until it has been securely gripped by the pliers 19 and 20.
  • the turning device described could also very generally between any two neighboring stations, e.g. between the forming stations III and IV.
  • the exemplary embodiment shows a multi-stage forming machine with horizontal press ram movement.
  • the principle claimed can also be applied equally to vertical machines.
  • both pliers 19 and 20 are coupled to a guide gear 23.
  • a guide gear 23 it would also be possible to inevitably guide only one pair of pliers over such a guide gear and to arrange the other loosely rotatable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Powder Metallurgy (AREA)
  • Recrystallisation Techniques (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP81104252A 1980-06-10 1981-06-03 Machine-outil à plusieurs étages travaillant le métal par formage Expired EP0041690B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104252T ATE6834T1 (de) 1980-06-10 1981-06-03 Mehrstufige umformmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3021695 1980-06-10
DE3021695 1980-06-10

Publications (4)

Publication Number Publication Date
EP0041690A2 true EP0041690A2 (fr) 1981-12-16
EP0041690A3 EP0041690A3 (en) 1982-03-17
EP0041690B1 EP0041690B1 (fr) 1984-03-28
EP0041690B2 EP0041690B2 (fr) 1988-11-30

Family

ID=6104229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104252A Expired EP0041690B2 (fr) 1980-06-10 1981-06-03 Machine-outil à plusieurs étages travaillant le métal par formage

Country Status (5)

Country Link
US (1) US4430882A (fr)
EP (1) EP0041690B2 (fr)
JP (1) JPS6018266B2 (fr)
AT (1) ATE6834T1 (fr)
DE (1) DE3162864D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190138627A (ko) * 2017-11-29 2019-12-13 한국과학기술원 양성자-붕소 핵반응을 이용한 발전 시스템

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2652850B2 (ja) * 1985-10-11 1997-09-10 オ−ビタル、エンジン、カンパニ−、プロプライエタリ、リミテッド 燃料計量方法及びその装置
ATE121977T1 (de) * 1992-02-11 1995-05-15 Hatebur Umformmaschinen Ag Wendeeinrichtung für automatische querförderpresse.
US5498895A (en) * 1993-07-07 1996-03-12 Actel Corporation Process ESD protection devices for use with antifuses
JPH0984982A (ja) * 1995-09-20 1997-03-31 Kanto Sheet Seisakusho:Kk ミシンの糸切れ検出装置
DE19545570A1 (de) 1995-12-07 1997-06-12 Schuler Pressen Gmbh & Co Transfereinrichtung für Mehrstationenpressen
WO2003080875A2 (fr) * 2002-03-26 2003-10-02 Nedschroef Herentals N.V. Dispositif permettant de transferer des elements de fil
US10857585B2 (en) * 2016-05-26 2020-12-08 Daido Steel Co., Ltd. Transfer device of multistage forging press machine
KR101712957B1 (ko) * 2016-05-26 2017-03-22 대한메탈(주) 형상물의 방향전환 기능을 구비한 냉간단조포머장치
JP6096360B1 (ja) * 2016-08-12 2017-03-15 旭サナック株式会社 ワーク姿勢変更装置および多工程圧造機

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
FR1210969A (fr) * 1957-09-25 1960-03-11 Waterbury Farrel Foundry Co Mécanisme de transfert pour machines à façonner des têtes et machines similaires
US3165766A (en) * 1961-08-29 1965-01-19 Nat Machinery Co Transfer for metal forming machine
DE1189359B (de) * 1963-02-26 1965-03-18 Nedschroef Octrooi Maats Transporteinrichtung an einer Mehrfachdruckpresse
US3217343A (en) * 1963-05-06 1965-11-16 Lamson & Sessions Co Transfer mechanism with rotatable work engaging means
US3466917A (en) * 1966-10-19 1969-09-16 Nat Machinery Co The Method and apparatus for forging blanks
DE2318449C2 (de) * 1973-04-12 1982-09-09 L. Schuler GmbH, 7320 Göppingen Zu- und Abführvorrichtung für tafel- oder bandförmige Werkstücke an Pressen
US3965718A (en) * 1973-07-23 1976-06-29 The National Machinery Company Transfer mechanism
BE827766R (fr) * 1974-11-18 1975-07-31 Mecanisme de transfert
DE2715966C3 (de) * 1977-04-09 1980-03-27 Hatebur Umformmaschinen Ag, Basel (Schweiz) Einrichtung zum automatischen Transport von Werkstücken an mehrstufigen Quertransportpressen
DE2800828A1 (de) * 1978-01-10 1979-07-12 Krupp Gmbh Vorrichtung zum wenden von werkstuecken
US4351180A (en) * 1980-06-30 1982-09-28 The National Machinery Company Workpiece turning transfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190138627A (ko) * 2017-11-29 2019-12-13 한국과학기술원 양성자-붕소 핵반응을 이용한 발전 시스템

Also Published As

Publication number Publication date
ATE6834T1 (de) 1984-04-15
JPS6018266B2 (ja) 1985-05-09
US4430882A (en) 1984-02-14
DE3162864D1 (en) 1984-05-03
EP0041690B2 (fr) 1988-11-30
EP0041690B1 (fr) 1984-03-28
JPS5725238A (en) 1982-02-10
EP0041690A3 (en) 1982-03-17

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