EP0988122B1 - Multistage metal-forming machine tool - Google Patents

Multistage metal-forming machine tool Download PDF

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Publication number
EP0988122B1
EP0988122B1 EP98922569A EP98922569A EP0988122B1 EP 0988122 B1 EP0988122 B1 EP 0988122B1 EP 98922569 A EP98922569 A EP 98922569A EP 98922569 A EP98922569 A EP 98922569A EP 0988122 B1 EP0988122 B1 EP 0988122B1
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EP
European Patent Office
Prior art keywords
product
forming machine
tongs
machine according
transfer
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.)
Expired - Lifetime
Application number
EP98922569A
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German (de)
French (fr)
Other versions
EP0988122A1 (en
Inventor
Daniel Ruchti
Ulrich Fluri
Heinz Dettwiler
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
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Hatebur Umformmaschinen AG
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Publication of EP0988122A1 publication Critical patent/EP0988122A1/en
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Classifications

    • 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
    • B21K1/00—Making machine elements
    • B21K1/04—Making machine elements ball-races or sliding bearing races
    • 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
    • B21J13/14—Ejecting devices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6492—Plural passes of diminishing work piece through tool station
    • Y10T83/6499—Work rectilinearly reciprocated through tool station
    • Y10T83/6508—With means to cause movement of work transversely toward plane of cut
    • Y10T83/6515—By means to define increment of movement toward plane of cut
    • Y10T83/6518—By pusher mechanism

Definitions

  • the present invention relates to a multi-stage Forming machine with a last forming station for division of combination parts in at least two good parts, as in the preamble of the independent claim 1 is defined.
  • Multi-stage forming machines in a last forming station Split the combination parts into two good parts e.g. used for the production of ball bearing rings.
  • the generated ones fall Good parts, for example an inner ring and a Outer ring, due to its own weight on one under the forming station arranged slide and slip on this the forming area of the forming machine.
  • Another disadvantage is that the good parts are removed in a disorganized manner become. The production order of the removed Good parts do not result immediately, so quality control and a possible readjustment of the forming machine and eliminating faulty good parts is. This leads to safety parts in particular too many possibly faulty good parts eliminated Need to become. In addition, is in one a separate step sorting the two manufactured Good part types and possibly one for the following Steps suitable alignment of the good parts required.
  • multi-stage forming machines Given the disadvantages of the previously known, described above multi-stage forming machines is the invention based on the following task.
  • the essence of the invention is that a multi-stage Forming machine with a last forming station for division of combination parts in at least two good parts, has at least two good part removal devices, which each have a transfer device for transferring a Good part from the last forming station to the good part discharge device assigned.
  • the transfer devices enable a quick and controlled removal of the good parts from the last forming station. Thanks to the transfer devices, the speed is the forming machine no longer through the Falling speed of the good parts limited. You can also the good parts in one for the subsequent steps appropriate orientation and timed. Controlled removal according to the production order also enables identification of the Good parts, what an exact quality control, a possible one Readjusting the forming machine and exiting faulty good parts considerably facilitated. For example at due to transitions from bars where the combination parts are made defective good parts the resignation on the immediately affected good parts are limited. It is not more necessary, for security reasons all in one particular Period, possibly defective good parts to be eliminated.
  • the good parts can be removed with the Forming machine can also be manufactured more precisely because the good parts not like with the mentioned forming machines of the stand of technology hitting the slide at high speed. Avoiding or at least greatly reducing of surface damage allows the machining allowances to reduce the good parts or even omit them entirely.
  • the multi-stage forming machine shown has three forming stations 1 ", 1 'and 1, being in the last forming station 1 combination parts 2 in two good parts be divided. Can be seen in the last forming station 1 is only one good part 21, here in the form of a Inner ring; the other good part, in the present embodiment an outer ring has already been separated from it and removed.
  • the combination parts 2 are with a pair of pliers 11 'from the forming station 1 "to the forming station 1 'and with pliers 11 from the forming station 1' to the forming station 1 transported.
  • the pliers 11 'and 11 point an upper gripper 111 'or 111 and a lower one Grippers 112 'or 112 on an upper tong holder 12 respectively attached to a lower tong holder 13 are.
  • the cross-feeding of the tongs 11 'and 11 takes place by moving the tong holder 12 and 13.
  • a good part removal device is for removing one good part 21 3 is provided, which is a transfer device 5 to transfer the good part 21 from the last forming station 1 is assigned to the good part removal device 3.
  • the good part removal device 3 comprises one of two side walls, of which only the side wall 32 can be seen here is limited, obliquely arranged slide 31 on which the Good parts 21 slip out of the forming area of the forming machine.
  • the transfer device 5 has a transfer pliers 51 an upper gripper 52 and a lower gripper 53, the rotatable on the upper tong holder 12 or on the lower tong holder 13 are rigidly attached and by means of these two Pliers carrier from the last forming station 1 to the good part removal device 3 and vice versa.
  • a Screw 56 acts as an adjustable stop for the upper one Gripper 52.
  • a good part 21 is adjustable by means of two Gripping jaws 521, 522 of the upper gripper 52 from above and by means of an adjustable gripper jaw 531 of the lower gripper 53 held from below. That of the good part removal device 3 facing side of the gripped good part 21 is free, so that the good part 21 can be placed on the slide 31, without the transfer pliers 51 touching them.
  • the good part 21 with closed threading pliers 51 a certain preload is the upper one Gripper 52 with a biasing spring 54 in the gripping direction biased.
  • a pre-opening device provided the upper gripper 52nd shortly before reaching the good part removal device 3 moved a certain distance in the opening direction.
  • the pre-opening facility in the present case includes an am Anvil 8 attached ramp 55 on which a pre-opening screw 58, which is arranged in a on the upper gripper 52 Mounting plate 57 is screwed, can open.
  • a pre-opening screw 58 is the pre-opening distance of the upper gripper 52 adjustable.
  • the transfer pliers 51 is in the good part removal device side Extreme position and with 9 the machine body designated.
  • the good part unloading part shown here according to the invention Forming machine comprises a first transfer device with a transfer forceps according to FIG. 1, from which For reasons of clarity, only the visible gripping jaws 521, 522 and 531 are drawn, one of the first transfer devices assigned first good part removal device 3, a second transfer device 6 and one assigned to it second good part removal device 4.
  • the first good part removal device 3 is constructed similarly like the good part removal device shown in FIG. 1. The only difference is that the slide 31 has a longitudinally displaceable end part 311. This end part 311 is used to hold smaller good parts 21 moved towards the last forming station 1, see above that even small good parts 21 through the transfer pliers be put on that they slide down the slide 31.
  • Mounting brackets 93 and 94 are used for mounting the good part removal device 3 on the machine body 9 or on Anvil 8.
  • the second good part removal device 4 comprises one of two Side walls 42 and 43 limited, obliquely arranged slide 41, on which the good parts 22, here in the form of outer rings, slip out of the forming area of the forming machine.
  • Mounting brackets 91 and 92 are used for mounting the good part removal device 4 on the machine body 9 or on the anvil 8.
  • the transfer device 6 for transferring a good part 22 from the last forming station 1 to the good part removal device 4 comprises one between the last forming station 1 and the good part removal device 4 arranged slideway 61 for receiving a good part 22 from the last forming station 1 and a pushing device for pushing one on the slideway 61 located good part 22 on the slide 41 of the good part removal device 4.
  • the pushing device in the present case has a kick lever 62 which is on a fixed part 65 is arranged to be pivotable about an axis of rotation 64 is.
  • the fixed part 65 is connected to an anchoring part 63 attached to a stripper 82 (see below).
  • the transfer of the good parts 21 and 22 from the last forming station 1 to the good part removal devices 3 and 4 can be done simultaneously or at different times.
  • a stamp 83 in a die 80 is the retraction of the stamp 83 that Good part 22 pulled out of the die 80 and on the stripper 82 stripped from the stamp 83 and thus reaches the Track 61.
  • the good part 21 is by means of an ejector 81 pushed out of the die 80 and either goes directly in the closed transfer pliers or is from the closing transfer forceps gripped. Then the Transfer of the good parts 21 and 22 as described above the good part removal devices 3 and 4.
  • the present good part unloading part of an inventive one Forming machine differs from that in Figs. 2-5 represented by the fact that it instead of a transfer device 6 with a kick lever 62, a transfer device 7 with a slide 72.
  • the slider 72 will via a drive attachment point 722, e.g. from the upper tong holder 12 of the forming machine, driven and pushes with a sliding plate 721 one resting on the slideway 71 Good part with the speed of the upper tong holder on the slide 41 of the good part removal device 4.
  • the slide movement becomes the slide 72 of guided a carriage 73, which it can be moved vertically penetrates.
  • the carriage 73 itself is guided by a carriage 74 with a T-shaped guide part 75 worn and for this purpose has a T-shaped groove.
  • Guide part 75 and Nut can of course also be done differently be formed, for example dovetail-shaped, trapezoidal etc.
  • the slide guide 74 is over a Anchoring part 76 on scraper 82, which is not visible here attached.
  • the vertical displacement of the slide 72 in the carriage 73 enables this after reaching the good part removal device Extreme position to raise in the reverse extreme position without that the stamp of the last forming station is touched, and then lower back to the starting position.
  • the transfer device 7 with slide 72 has compared to the Transfer device 6 with kick lever 62 has the advantage that the good parts are moved relatively gently and no on them Blow is exercised.

Description

Die vorliegende Erfindung bezieht sich auf eine mehrstufige Umformmaschine mit einer letzten Umformstation zur Aufteilung von Kombinationsteilen in jeweils mindestens zwei Gutteile, wie sie im Oberbegriff des unabhängigen Patentanspruchs 1 definiert ist.The present invention relates to a multi-stage Forming machine with a last forming station for division of combination parts in at least two good parts, as in the preamble of the independent claim 1 is defined.

Mehrstufige Umformmaschinen, die in einer letzten Umformstation Kombinationsteile in zwei Gutteile aufteilen, werden z.B. zur Herstellung von Kugellagerringen eingesetzt. Bei den meisten bekannten Umformmaschinen fallen die erzeugten Gutteile, beispielsweise ein Innenring und ein Aussenring, durch ihr Eigengewicht auf eine unter der Umformstation angeordnete Rutsche und rutschen auf dieser aus dem Umformbereich der Umformmaschine heraus.Multi-stage forming machines in a last forming station Split the combination parts into two good parts e.g. used for the production of ball bearing rings. In most known forming machines, the generated ones fall Good parts, for example an inner ring and a Outer ring, due to its own weight on one under the forming station arranged slide and slip on this the forming area of the forming machine.

Diese Umformmaschinen weisen eine ganze Reihe von Nachteilen auf. So ist die Maschinengeschwindigkeit durch das erdbeschleunigungsabhängige Fallen der Gutteile beschränkt. Die Gutteile selbst können durch den Aufprall auf die Rutsche eventuell Oberflächenschäden erfahren, was zu Ungenauigkeiten führt und eine Nachbearbeitung erforderlich macht. Ein genaue Endfertigung der Gutteile durch die Umformmaschine ist daher nicht möglich.These forming machines have a number of disadvantages on. So the machine speed is due to the earth's acceleration Fall of the good parts limited. The good parts themselves can be impacted by the slide may experience surface damage, causing inaccuracies leads and post-processing required makes. Precise finishing of the good parts by the forming machine is therefore not possible.

Ein weiterer Nachteil ist, dass die Gutteile ungeordnet abgeführt werden. Die Fertigungsreihenfolge der abgeführten Gutteile ergibt sich nicht unmittelbar, so dass eine Qualitätskontrolle und ein eventuelles Nachstellen der Umformmaschine und Ausscheiden von fehlerhaften Gutteilen erschwert ist. Dies führt dazu, dass insbesondere bei Sicherheitsteilen zu viele möglicherweise fehlerhafte Gutteile ausgeschieden werden müssen. Ausserdem ist nachträglich in einem separaten Arbeitsschritt ein Sortieren der beiden hergestellten Gutteilarten und eventuell ein für die nachfolgenden Arbeitsschritte geeignetes Ausrichten der Gutteile erforderlich.Another disadvantage is that the good parts are removed in a disorganized manner become. The production order of the removed Good parts do not result immediately, so quality control and a possible readjustment of the forming machine and eliminating faulty good parts is. This leads to safety parts in particular too many possibly faulty good parts eliminated Need to become. In addition, is in one a separate step sorting the two manufactured Good part types and possibly one for the following Steps suitable alignment of the good parts required.

Bei mehrstufigen Umformmaschinen zur Herstellung eines einzigen Gutteils pro Arbeitsgang konnten einige entsprechende Nachteile dadurch behoben werden, dass bei der letzten Umformstation eine Überführzange zur Überführung des Gutteils in die Abführrutsche angeordnet wurde. Eine derartige Umformmaschine ist in der DE 35 17 637 A1 beschrieben. Mit dieser Umformmaschine ist es allerdings nicht möglich, aus einem Kombinationsteil zwei Gutteile herzustellen und diese dann separat und kontrolliert abzuführen.For multi-stage forming machines to produce a single one Most of them were able to do some of the work Disadvantages are remedied by the fact that at the last forming station a transfer forceps for transferring the good part was placed in the discharge chute. Such a forming machine is described in DE 35 17 637 A1. With this forming machine, however, is not possible to produce two good parts in a combination part and these then to be discharged separately and in a controlled manner.

Angesichts der Nachteile der bisher bekannten, oben beschriebenen mehrstufigen Umformmaschinen liegt der Erfindung die folgende Aufgabe zugrunde. Zu schaffen ist eine mehrstufige Umformmaschine der eingangs erwähnten Art, bei der aus einem Kombinationsteil hergestellte Gutteile schnell, separat und kontrolliert aus der letzten Umformstation abführbar sind.Given the disadvantages of the previously known, described above multi-stage forming machines is the invention based on the following task. One has to be created multi-stage forming machine of the type mentioned, at the good parts made from a combination part fast, separate and controlled from the last forming station are laxable.

Diese Aufgabe wird durch die erfindungsgemässe Umformmaschine gelöst, wie sie im unabhängigen Patentanspruch 1 definiert ist. Bevorzugte Ausführungsvarianten ergeben sich aus den abhängigen Patentansprüchen. This object is achieved by the forming machine according to the invention solved as defined in independent claim 1 is. Preferred design variants result from the dependent claims.

Das Wesen der Erfindung liegt darin, dass eine mehrstufige Umformmaschine mit einer letzten Umformstation zur Aufteilung von Kombinationsteilen in jeweils mindestens zwei Gutteile, mindestens zwei Gutteilabführeinrichtungen aufweist, denen jeweils eine Überführeinrichtung zur Überführung eines Gutteils von der letzten Umformstation zur Gutteilabführeinrichtung zugeordnet ist.The essence of the invention is that a multi-stage Forming machine with a last forming station for division of combination parts in at least two good parts, has at least two good part removal devices, which each have a transfer device for transferring a Good part from the last forming station to the good part discharge device assigned.

Dadurch, dass die Umformmaschine mindestens zwei Gutteilabführeinrichtungen mit zugeordneten Überführeinrichtungen aufweist, kann nach dem Aufteilen eines Kombinationsteils in der letzten Umformstation jedes Gutteil separat abgeführt werden.Characterized in that the forming machine at least two good part removal devices with assigned transfer devices has after dividing a combination part Each good part is removed separately in the last forming station become.

Die Überführeinrichtungen ermöglichen eine schnelle und kontrollierte Abführung der Gutteile aus der letzten Umformstation. Dank den Überführeinrichtungen ist die Geschwindigkeit der Umformmaschine nicht mehr durch die Fallgeschwindigkeit der Gutteile beschränkt. Zudem können die Gutteile in einer für die nachfolgenden Arbeitsschritte geeigneten Ausrichtung und zeitlich geregelt abgeführt werden. Die kontrollierte Abführung entsprechend der Fertigungsreihenfolge ermöglicht auch eine Identifikation der Gutteile, was eine genaue Qualitätskontrolle, ein eventuelles Nachstellen der Umformmaschine und ein Ausscheiden von fehlerhaften Gutteilen erheblich erleichtert. So kann beispielsweise bei aufgrund von Übergangen von Stangen, aus denen die Kombinationsteile hergestellt werden, auftretenden fehlerhaften Gutteilen das Ausscheiden auf die unmittelbar betroffenen Gutteile beschrankt werden. Es ist nicht mehr nötig, aus Sicherheitsgründen alle in einem bestimmten Zeitraum abgeführten, möglicherweise fehlerhaften Gutteile auszuscheiden.The transfer devices enable a quick and controlled removal of the good parts from the last forming station. Thanks to the transfer devices, the speed is the forming machine no longer through the Falling speed of the good parts limited. You can also the good parts in one for the subsequent steps appropriate orientation and timed. Controlled removal according to the production order also enables identification of the Good parts, what an exact quality control, a possible one Readjusting the forming machine and exiting faulty good parts considerably facilitated. For example at due to transitions from bars where the combination parts are made defective good parts the resignation on the immediately affected good parts are limited. It is not more necessary, for security reasons all in one particular Period, possibly defective good parts to be eliminated.

Dank den Überführeinrichtungen können die Gutteile mit der Umformmaschine auch genauer gefertigt werden, da die Gutteile nicht wie bei den erwähnten Umformmaschinen des Standes der Technik mit hoher Geschwindigkeit auf die Rutsche aufprallen. Die Vermeidung oder zumindest starke Verminderung von Oberflächenschäden ermöglicht es, die Bearbeitungszugaben auf den Gutteilen zu reduzieren oder sogar ganz wegzulassen.Thanks to the transfer devices, the good parts can be removed with the Forming machine can also be manufactured more precisely because the good parts not like with the mentioned forming machines of the stand of technology hitting the slide at high speed. Avoiding or at least greatly reducing of surface damage allows the machining allowances to reduce the good parts or even omit them entirely.

Im folgenden wird die erfindungsgemässe mehrstufige Umformmaschine unter Bezugnahme auf die beigefügten Zeichnungen und anhand von zwei Ausführungsbeispielen detaillierter beschrieben. Es zeigen:

Fig. 1 -
einen Schnitt durch einen Teil einer erfindungsgemässen mehrstufigen Umformmaschine mit einer Überführzange in zwei Positionen;
Fig. 2 -
eine Seitenansicht eines ersten Ausführungsbeispiels des Gutteilentladeteils einer erfindungsgemässen mehrstufigen Umformmaschine mit einer ersten Überführeinrichtung mit einer Überführzange und einer zweiten Überführeinrichtung mit einem Kickhebel in Ruheposition;
Fig. 3 -
den Gutteilentladeteil von Fig. 2 mit dem Kickhebel in Stossposition;
Fig. 4 -
eine Draufsicht auf den Gutteilentladeteil von Fig. 2;
Fig. 5 -
eine Ansicht von vorne des Gutteilentladeteils von Fig. 2;
Fig. 6 -
eine Seitenansicht eines zweiten Ausführungsbeispiels des Gutteilentladeteils einer erfindungsgemässen mehrstufigen Umformmaschine mit einer ersten Überführeinrichtung mit einer Überführzange und einer zweiten Überführeinrichtung mit einem Schieber;
Fig. 7 -
eine Draufsicht auf den Gutteilentladeteil von Fig. 6 und
Fig. 8 -
eine Ansicht von vorne des Gutteilentladeteils von Fig. 6.
In the following, the multi-stage forming machine according to the invention is described in more detail with reference to the accompanying drawings and using two exemplary embodiments. Show it:
Fig. 1 -
a section through part of a multi-stage forming machine according to the invention with a transfer pliers in two positions;
Fig. 2 -
a side view of a first embodiment of the good part unloading part of a multi-stage forming machine according to the invention with a first transfer device with a transfer pliers and a second transfer device with a kick lever in the rest position;
Fig. 3 -
the Gutteilentladeteil of Figure 2 with the kick lever in the push position.
Fig. 4 -
a plan view of the Gutteilentladeteil of Fig. 2;
Fig. 5 -
a front view of the Gutteilentladeteils of Fig. 2;
Fig. 6 -
a side view of a second embodiment of the good part unloading part of a multi-stage forming machine according to the invention with a first transfer device with a transfer pliers and a second transfer device with a slide;
Fig. 7 -
a plan view of the Gutteilentladeteil of Fig. 6 and
Fig. 8 -
6 shows a front view of the good part unloading part from FIG. 6.

Figur 1Figure 1

Die dargestellte mehrstufige Umformmaschine weist drei Umformstationen 1",1' und 1 auf , wobei in der letzten Umformstation 1 Kombinationsteile 2 in jeweils zwei Gutteile aufgeteilt werden. In der letzten Umformstation 1 ersichtlich ist nur noch das eine Gutteil 21, hier in Form eines Innenrings; das andere Gutteil, beim vorliegenden Ausführungsbeispiel ein Aussenring, wurde bereits von diesem abgetrennt und entfernt. Die Kombinationsteile 2 werden mit einer Zange 11' von der Umformstation 1" zur Umformstation 1' und mit einer Zange 11 von der Umformstation 1' zur Umformstation 1 transportiert. Die Zangen 11' und 11 weisen jeweils einen oberen Greifer 111' bzw. 111 und einen unteren Greifer 112' bzw. 112 auf, die an einem oberen Zangenträger 12 respektive an einem unteren Zangenträger 13 angebracht sind. Die Querförderung der Zangen 11' und 11 erfolgt durch Verschieben der Zangenträger 12 und 13.The multi-stage forming machine shown has three forming stations 1 ", 1 'and 1, being in the last forming station 1 combination parts 2 in two good parts be divided. Can be seen in the last forming station 1 is only one good part 21, here in the form of a Inner ring; the other good part, in the present embodiment an outer ring has already been separated from it and removed. The combination parts 2 are with a pair of pliers 11 'from the forming station 1 "to the forming station 1 'and with pliers 11 from the forming station 1' to the forming station 1 transported. The pliers 11 'and 11 point an upper gripper 111 'or 111 and a lower one Grippers 112 'or 112 on an upper tong holder 12 respectively attached to a lower tong holder 13 are. The cross-feeding of the tongs 11 'and 11 takes place by moving the tong holder 12 and 13.

Zur Abführung des einen Gutteils 21 ist eine Gutteilabführeinrichtung 3 vorgesehen, der eine Überführeinrichtung 5 zur Überführung des Gutteils 21 von der letzten Umformstation 1 zur Gutteilabführeinrichtung 3 zugeordnet ist.A good part removal device is for removing one good part 21 3 is provided, which is a transfer device 5 to transfer the good part 21 from the last forming station 1 is assigned to the good part removal device 3.

Die Gutteilabführeinrichtung 3 umfasst eine von zwei Seitenwänden, von denen hier nur die Seitenwand 32 ersichtlich ist, begrenzte, schräg angeordnete Rutsche 31, auf der die Gutteile 21 aus dem Umformbereich der Umformmaschine herausrutschen.The good part removal device 3 comprises one of two side walls, of which only the side wall 32 can be seen here is limited, obliquely arranged slide 31 on which the Good parts 21 slip out of the forming area of the forming machine.

Die Überführeinrichtung 5 weist eine Überführzange 51 mit einem oberen Greifer 52 und einem unteren Greifer 53 auf, die am oberen Zangenträger 12 drehbar bzw. am unteren Zangenträger 13 starr befestigt sind und mittels dieser beiden Zangenträger von der letzten Umformstation 1 zur Gutteilabführeinrichtung 3 und umgekehrt quergefördert werden. Eine Schraube 56 wirkt als verstellbarer Anschlag für den oberen Greifer 52. Ein Gutteil 21 wird mittels zweier verstellbarer Greifbacken 521,522 des oberen Greifers 52 von oben und mittels einer verstellbaren Greifbacke 531 des unteren Greifers 53 von unten gehalten. Die der Gutteilabführeinrichtung 3 zugewandte Seite des ergriffenen Gutteils 21 ist frei, so dass das Gutteil 21 auf die Rutsche 31 gelegt werden kann, ohne dass die Überführzange 51 diese berührt. The transfer device 5 has a transfer pliers 51 an upper gripper 52 and a lower gripper 53, the rotatable on the upper tong holder 12 or on the lower tong holder 13 are rigidly attached and by means of these two Pliers carrier from the last forming station 1 to the good part removal device 3 and vice versa. A Screw 56 acts as an adjustable stop for the upper one Gripper 52. A good part 21 is adjustable by means of two Gripping jaws 521, 522 of the upper gripper 52 from above and by means of an adjustable gripper jaw 531 of the lower gripper 53 held from below. That of the good part removal device 3 facing side of the gripped good part 21 is free, so that the good part 21 can be placed on the slide 31, without the transfer pliers 51 touching them.

Damit das Gutteil 21 bei geschlossener Überführzange 51 mit einer gewissen Vorspannung transportiert wird, ist der obere Greifer 52 mit einer Vorspannfeder 54 in Greifrichtung vorgespannt. Um zu verhindern, dass das Gutteil 21 beim Öffnen der Überführzange 51 durch die Vorspannung des oberen Greifers 52 nach unten geschleudert wird, ist eine Voröffnungseinrichtung vorgesehen, die den oberen Greifer 52 bereits kurz vor Erreichen der Gutteilabführeinrichtung 3 eine bestimmte Strecke in Öffnungsrichtung bewegt. Die Voröffnungseinrichtung umfasst im vorliegenden Fall eine am Amboss 8 angebrachte Rampe 55, auf die eine Voröffnungsschraube 58, die in eine am oberen Greifer 52 angeordnete Befestigungsplatte 57 geschraubt ist, auffahren kann. Durch Verstellen der Voröffnungsschraube 58 ist die Voröffnungsstrecke des oberen Greifers 52 einstellbar.So that the good part 21 with closed threading pliers 51 a certain preload is the upper one Gripper 52 with a biasing spring 54 in the gripping direction biased. To prevent the good part 21 when Open the transfer pliers 51 by prestressing the upper one Grabber 52 is thrown down, is a pre-opening device provided the upper gripper 52nd shortly before reaching the good part removal device 3 moved a certain distance in the opening direction. The pre-opening facility in the present case includes an am Anvil 8 attached ramp 55 on which a pre-opening screw 58, which is arranged in a on the upper gripper 52 Mounting plate 57 is screwed, can open. By Adjusting the pre-opening screw 58 is the pre-opening distance of the upper gripper 52 adjustable.

Mit 51' ist die Überführzange 51 in der gutteilabführeinrichtungsseitigen Extremposition und mit 9 der Maschinenkörper bezeichnet.With 51 'the transfer pliers 51 is in the good part removal device side Extreme position and with 9 the machine body designated.

Für die gesamte weitere Beschreibung gilt folgende Festlegung. Sind in einer Figur zum Zweck zeichnerischer Eindeutigkeit Bezugsziffern enthalten, aber im unmittelbar zugehörigen Beschreibungstext nicht erläutert, so wird auf deren Erwähnung in vorangehenden Figurenbeschreibungen Bezug genommen.The following definition applies to the entire further description. Are in a figure for the sake of graphic clarity Reference numbers included, but in the immediately associated Descriptive text not explained, so is on their Mention in previous figure descriptions reference taken.

Figuren 2 bis 5Figures 2 to 5

Der hier dargestellte Gutteilentladeteil einer erfindungsgemässen Umformmaschine umfasst eine erste Überführeinrichtung mit einer Überführzange gemäss Fig. 1, von der aus Übersichtlichkeitsgründen nur die sichtbaren Greifbacken 521,522 und 531 gezeichnet sind, eine der ersten Überführeinrichtung zugeordnete erste Gutteilabführeinrichtung 3, eine zweite Überführeinrichtung 6 und eine dieser zugeordnete zweite Gutteilabführeinrichtung 4.The good part unloading part shown here according to the invention Forming machine comprises a first transfer device with a transfer forceps according to FIG. 1, from which For reasons of clarity, only the visible gripping jaws 521, 522 and 531 are drawn, one of the first transfer devices assigned first good part removal device 3, a second transfer device 6 and one assigned to it second good part removal device 4.

Die erste Gutteilabführeinrichtung 3 ist ähnlich aufgebaut wie die in Fig. 1 dargestellte Gutteilabführeinrichtung. Der einzige Unterschied besteht darin, dass die Rutsche 31 ein in Längsrichtung verschiebbares Endteil 311 aufweist. Dieses Endteil 311 wird zur Aufnahme von kleineren Gutteilen 21 in Richtung letzter Umformstation 1 verschoben, so dass auch kleinere Gutteile 21 durch die Überführzange so aufgesetzt werden, dass sie die Rutsche 31 hinunterrutschen. Befestigungswinkel 93 und 94 dienen zur Befestigung der Gutteilabführeinrichtung 3 am Maschinenkörper 9 bzw. am Amboss 8.The first good part removal device 3 is constructed similarly like the good part removal device shown in FIG. 1. The only difference is that the slide 31 has a longitudinally displaceable end part 311. This end part 311 is used to hold smaller good parts 21 moved towards the last forming station 1, see above that even small good parts 21 through the transfer pliers be put on that they slide down the slide 31. Mounting brackets 93 and 94 are used for mounting the good part removal device 3 on the machine body 9 or on Anvil 8.

Die zweite Gutteilabführeinrichtung 4 umfasst eine von zwei Seitenwänden 42 bzw. 43 begrenzte, schräg angeordnete Rutsche 41, auf der die Gutteile 22, hier in Form von Aussenringen, aus dem Umformbereich der Umformmaschine herausrutschen. Befestigungswinkel 91 und 92 dienen zur Befestigung der Gutteilabführeinrichtung 4 am Maschinenkörper 9 bzw. am Amboss 8.The second good part removal device 4 comprises one of two Side walls 42 and 43 limited, obliquely arranged slide 41, on which the good parts 22, here in the form of outer rings, slip out of the forming area of the forming machine. Mounting brackets 91 and 92 are used for mounting the good part removal device 4 on the machine body 9 or on the anvil 8.

Die Überführeinrichtung 6 zur Überführung eines Gutteils 22 von der letzten Umformstation 1 zur Gutteilabführeinrichtung 4 umfasst eine zwischen der letzten Umformstation 1 und der Gutteilabführeinrichtung 4 angeordnete Gleitbahn 61 zur Aufnahme eines Gutteils 22 aus der letzten Umformstation 1 sowie eine Stossvorrichtung zum Stossen eines auf der Gleitbahn 61 befindlichen Gutteils 22 auf die Rutsche 41 der Gutteilabführeinrichtung 4. Die Stossvorrichtung weist im vorliegenden Fall einen Kickhebel 62 auf, der an einem Fixteil 65 um eine Drehachse 64 schwenkbar angeordnet ist. Das Fixteil 65 ist über ein Verankerungsteil 63 an einem Abstreifer 82 (siehe unten) befestigt. Durch einen Schlag auf den Hebelarm 621 des Kickhebels 62, beispielsweise mittels eines Auswerferbügels der Umformmaschine, wird dessen Kickplatte 622 in Richtung der Gutteilabführeinrichtung 4 ausgelenkt (s. Fig. 3) und gibt einem auf der Gleitbahn 61 befindlichen Gutteil 22 einen Bewegungsimpuls, durch den dieses zur Rutsche 41 der Gutteilabführeinrichtung 4 bewegt wird. Eine Schraubenfeder 66 drückt danach den Hebelarm 621 wieder nach oben und bringt so den Kickhebel 62 wieder in seine Ruheposition (s. Fig. 2, 4 und 5).The transfer device 6 for transferring a good part 22 from the last forming station 1 to the good part removal device 4 comprises one between the last forming station 1 and the good part removal device 4 arranged slideway 61 for receiving a good part 22 from the last forming station 1 and a pushing device for pushing one on the slideway 61 located good part 22 on the slide 41 of the good part removal device 4. The pushing device in the present case has a kick lever 62 which is on a fixed part 65 is arranged to be pivotable about an axis of rotation 64 is. The fixed part 65 is connected to an anchoring part 63 attached to a stripper 82 (see below). Through a Hit the lever arm 621 of the kick lever 62, for example by means of an ejector bracket of the forming machine, the kick plate 622 in the direction of the good part removal device 4 deflected (see Fig. 3) and gives one on the Good part 22 located on the slideway 61 has a movement impulse, through this to the slide 41 of the good part removal device 4 is moved. A coil spring 66 presses on it the lever arm 621 back up and brings the kick lever 62 back to its rest position (see Fig. 2, 4 and 5).

Die Überführung der Gutteile 21 und 22 aus der letzten Umformstation 1 zu den Gutteilabführeinrichtungen 3 bzw. 4 kann gleichzeitig oder zeitlich versetzt erfolgen. Nach dem Trennen der beiden Gutteile 21,22 durch einen Stempel 83 in einer Matrize 80 wird durch den Rückzug des Stempels 83 das Gutteil 22 aus der Matrize 80 herausgezogen und am Abstreifer 82 vom Stempel 83 abgestreift und gelangt so auf die Gleicbahn 61. Das Gutteil 21 wird mittels eines Auswerfers 81 aus der Matrize 80 geschoben und gelangt entweder direkt in die geschlossene Überführzange oder wird von der sich schliessenden Überführzange ergriffen. Danach erfolgt die Überführung der Gutteile 21 und 22 wie oben beschrieben zu den Gutteilabführeinrichtungen 3 bzw. 4. The transfer of the good parts 21 and 22 from the last forming station 1 to the good part removal devices 3 and 4 can be done simultaneously or at different times. After this Separate the two good parts 21, 22 by a stamp 83 in a die 80 is the retraction of the stamp 83 that Good part 22 pulled out of the die 80 and on the stripper 82 stripped from the stamp 83 and thus reaches the Track 61. The good part 21 is by means of an ejector 81 pushed out of the die 80 and either goes directly in the closed transfer pliers or is from the closing transfer forceps gripped. Then the Transfer of the good parts 21 and 22 as described above the good part removal devices 3 and 4.

Figuren 6 bis 8Figures 6 to 8

Der hier vorliegende Gutteilentladeteil einer erfindungsgemässen Umformmaschine unterscheidet sich von dem in den Fig. 2-5 dargestellten dadurch, dass er anstelle einer Überführeinrichtung 6 mit einem Kickhebel 62, eine Überführeinrichtung 7 mit einem Schieber 72 aufweist. Der Schieber 72 wird über eine Antriebsansatzstelle 722, z.B. vom oberen Zangenträger 12 der Umformmaschine, angetrieben und schiebt mit einer Schiebeplatte 721 ein auf der Gleitbahn 71 aufliegendes Gutteil mit der Geschwindigkeit des oberen Zangenträgers auf die Rutsche 41 der Gutteilabführeinrichtung 4. Zur Stabilisierung der Schieberbewegung wird der Schieber 72 von einem Schlitten 73 geführt, den er vertikal verschiebbar durchdringt. Der Schlitten 73 selber wird von einer Schlittenführung 74 mit einem T-förmig ausgebildeten Führungsteil 75 getragen und weist hierzu eine T-förmige Nut auf. Führungsteil 75 und Nut können selbstverständlich auch anders ausgebildet sein, beispielsweise schwalbenschwanzförmig, trapezförmig etc. Die Schlittenführung 74 ist über ein Verankerungsteil 76 am hier nicht sichtbaren Abstreifer 82 befestigt.The present good part unloading part of an inventive one Forming machine differs from that in Figs. 2-5 represented by the fact that it instead of a transfer device 6 with a kick lever 62, a transfer device 7 with a slide 72. The slider 72 will via a drive attachment point 722, e.g. from the upper tong holder 12 of the forming machine, driven and pushes with a sliding plate 721 one resting on the slideway 71 Good part with the speed of the upper tong holder on the slide 41 of the good part removal device 4. For stabilization the slide movement becomes the slide 72 of guided a carriage 73, which it can be moved vertically penetrates. The carriage 73 itself is guided by a carriage 74 with a T-shaped guide part 75 worn and for this purpose has a T-shaped groove. Guide part 75 and Nut can of course also be done differently be formed, for example dovetail-shaped, trapezoidal etc. The slide guide 74 is over a Anchoring part 76 on scraper 82, which is not visible here attached.

Die vertikale Verschiebbarkeit des Schiebers 72 im Schlitten 73 ermöglicht es, diesen nach Erreichen der gutteilabführeinrichtungsseitigen Extremposition anzuheben, in die entgegengesetzte Extremposition zurückzufahren, ohne dass der Stempel der letzten Umformstation berührt wird, und dann wieder in die Ausgangsposition abzusenken.The vertical displacement of the slide 72 in the carriage 73 enables this after reaching the good part removal device Extreme position to raise in the reverse extreme position without that the stamp of the last forming station is touched, and then lower back to the starting position.

Die Überführeinrichtung 7 mit Schieber 72 hat gegenüber der Überführeinrichtung 6 mit Kickhebel 62 den Vorteil, dass die Gutteile relativ sanft bewegt werden und auf sie kein Schlag ausgeübt wird.The transfer device 7 with slide 72 has compared to the Transfer device 6 with kick lever 62 has the advantage that the good parts are moved relatively gently and no on them Blow is exercised.

Zu den vorbeschriebenen mehrstufigen Umformmaschinen sind weitere konstruktive Variationen realisierbar. Hier ausdrücklich erwähnt seien noch:

  • Anstelle von Rutschen 31 bzw. 41 können die Gutteilabführeinrichtungen 3 und 4 Förderbänder aufweisen, die horizontal oder schräg angeordnet sind. Es ist auch denkbar, zum Transport der Gutteile 21,22 Mitnehmer vorzusehen.
  • Die Überführzange 51 kann auch einen unteren Greifer 53 mit zwei Greifbacken aufweisen. Ein Touchieren der Rutsche 31 durch den unteren Greifer 53 kann durch das Versehen der Rutsche 31 mit einem Spalt verhindert werden. Es sind auch andere Überführzangen denkbar, die beispielsweise nur einen oberen Greifer aufweisen. Überführzangen mit nur einem Greifer eignen sich insbesondere für Kaltumformmaschinen.
  • Die Überführeinrichtungen 5,6,7 sind beliebig miteinander kombinierbar, wobei auch mehrere Überführeinrichtungen von derselben Art sein können und für die Abführung von mehr als zwei Gutteilen die entsprechende Anzahl von Überführeinrichtungen und Gutteilabführeinrichtungen vorgesehen sein kann.
In addition to the multi-stage forming machines described above, further design variations can be implemented. Here are also explicitly mentioned:
  • Instead of slides 31 and 41, the good part removal devices 3 and 4 can have conveyor belts which are arranged horizontally or obliquely. It is also conceivable to provide drivers 21, 22 for transporting the good parts.
  • The transfer pliers 51 can also have a lower gripper 53 with two gripping jaws. Touching the slide 31 by the lower gripper 53 can be prevented by providing the slide 31 with a gap. Other transfer pliers are also conceivable, which for example only have an upper gripper. Transfer tongs with only one gripper are particularly suitable for cold forming machines.
  • The transfer devices 5, 6, 7 can be combined with one another as desired, it also being possible for a plurality of transfer devices to be of the same type and for the removal of more than two good parts the corresponding number of transfer devices and good part removal devices can be provided.

Claims (10)

  1. Multi-stage forming machine with a final forming station (1) for dividing combined parts (2) into in each case at least two product parts (21, 22) and with at least one product-part discharge device (3, 4), characterized in that it has at least two product-part discharge devices (3, 4), to which there is in each case assigned a transfer device (5, 6, 7) for transferring a product part (21, 22) from the final forming station (1) to the product-part discharge device (3, 4).
  2. Multi-stage forming machine according to Claim 1, with tongs (11', 11) for transferring the combined parts (2) from one forming station (1", 1', 1) to the next, the tongs (11', 11) being arranged on at least one common tongs carrier (12, 13) and being transversely transportable together by the latter, characterized in that one of the transfer devices (5) comprises transfer tongs (51) which are arranged on the tongs carrier or common tongs carriers (12, 13).
  3. Multi-stage forming machine according to Claim 2, with an upper tongs carrier (12) and a lower tongs carrier (13), characterized in that the transfer tongs (51) comprise an upper gripper (52), arranged on the upper tongs carrier (12), and a lower gripper (53), arranged on the lower tongs carrier (13).
  4. Multi-stage forming machine according to Claim 3, characterized in that the lower gripper (53) has only one gripping jaw (531), which is arranged such that the side of a gripped product part (21, 22) facing the assigned product-part discharge device (3) is free.
  5. Multi-stage forming machine according to Claim 3 or 4, characterized in that the upper gripper (52) is pretensioned in the gripping direction by means of a pretensioning device, which may have a pretensioning spring (54), and there may be provided a preopening device, which comprises for example a ramp (55) for raising the upper gripper (52), which preopening device already moves the upper gripper (52) a certain amount in the opening direction shortly before reaching the product-part discharge device (3).
  6. Multi-stage forming machine according to one of Claims 1 to 5, characterized in that one of the transfer devices (6, 7) comprises a slideway (61, 71), arranged between the final forming station (1) and the assigned product-part discharge device (4), for receiving a product part (22) from the final forming station (1), and also a pushing device for pushing a product part (22) located on the slideway (61, 71) to the product-part discharge device (4).
  7. Multi-stage forming machine according to Claim 6, characterized in that the pushing device comprises a kick lever (62) which is arranged such that it can swivel and by which momentum can be imparted to a product part (22) located on the slideway (61).
  8. Multi-stage forming machine according to Claim 6, characterized in that the pushing device comprises a pusher (72) for pushing a product part (22) located on the slideway (71) to the product-part discharge device (4).
  9. Multi-stage forming machine according to Claim 7 or 8, characterized in that the kick lever (62) or the pusher (72) can be actuated directly or by means of at least one bar or carriage (73) by tongs (51, 11, 11'), a tongs carrier (12, 13), a male die or knock-out mechanism of the forming machine, the drive device of one of these elements or a separate drive device.
  10. Multi-stage forming machine according to one of Claims 1 to 9, characterized in that at least one of the product-part discharge devices (3, 4) comprises an obliquely arranged chute (31, 41), which nay have at the end facing the assigned transfer device (5, 6, 7) a displaceable end part (311), or comprises a conveyor belt.
EP98922569A 1997-06-13 1998-06-09 Multistage metal-forming machine tool Expired - Lifetime EP0988122B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH144997 1997-06-13
CH144997 1997-06-13
PCT/CH1998/000249 WO1998057765A1 (en) 1997-06-13 1998-06-09 Multistage metal-forming machine tool

Publications (2)

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EP0988122A1 EP0988122A1 (en) 2000-03-29
EP0988122B1 true EP0988122B1 (en) 2001-05-09

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US (1) US6471035B1 (en)
EP (1) EP0988122B1 (en)
JP (1) JP2001508704A (en)
KR (1) KR100349053B1 (en)
CN (1) CN1084648C (en)
AU (1) AU7518298A (en)
CZ (1) CZ9904174A3 (en)
DE (1) DE59800691D1 (en)
EA (1) EA001306B1 (en)
ES (1) ES2156441T3 (en)
TW (1) TW400257B (en)
UA (1) UA48307C2 (en)
WO (1) WO1998057765A1 (en)

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Publication number Priority date Publication date Assignee Title
US9586246B2 (en) * 2015-01-26 2017-03-07 National Machinery Llc Down conveyor
CN113751651B (en) * 2021-09-15 2024-01-19 福建精诚锻造有限公司 Combined bearing seat forging device and forging process thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH398316A (en) 1962-05-26 1966-03-15 Reinhold Dipl Ing Elsen Multi-stage press
NL6811971A (en) * 1968-08-22 1970-02-24
DE2064440C3 (en) 1970-12-30 1979-03-22 Hatebur Ag F B Multi-stage press for the simultaneous production of two hollow bodies of limited length that fit into one another
CH553014A (en) 1973-04-16 1974-08-30 Krasnicka Fabryka Wyrobow Meta DEVICE FOR SEPARATING TOWER FORGING ITEMS.
JPS5118259A (en) * 1974-08-06 1976-02-13 Tomio Ishida Netsukanfuoomaaniokeru naigairindojiseizosochi
US4407630A (en) * 1979-01-22 1983-10-04 Setsuo Toda Work feed method in a press
US4382737A (en) * 1981-03-05 1983-05-10 Gulf & Western Manufacturing Company Can end making apparatus
US4631950A (en) 1984-05-17 1986-12-30 The National Machinery Company Progressive former with removable tooling
US6032505A (en) * 1993-03-12 2000-03-07 Stodd; Ralph P. Tooling apparatus and method for high speed production of drawn metal cup-like articles
US6293386B1 (en) * 1999-05-10 2001-09-25 Fitel Innovations Leadframe transport and method therefor
US6267220B1 (en) * 1999-09-24 2001-07-31 Globe Machine Manufacturing Company Flange feeder for wooden I-beam assembly machine

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AU7518298A (en) 1999-01-04
EA200000015A1 (en) 2000-06-26
DE59800691D1 (en) 2001-06-13
JP2001508704A (en) 2001-07-03
UA48307C2 (en) 2002-08-15
WO1998057765A1 (en) 1998-12-23
EP0988122A1 (en) 2000-03-29
KR20010013213A (en) 2001-02-26
EA001306B1 (en) 2000-12-25
US6471035B1 (en) 2002-10-29
ES2156441T3 (en) 2001-06-16
KR100349053B1 (en) 2002-08-21
CN1259065A (en) 2000-07-05
TW400257B (en) 2000-08-01
CN1084648C (en) 2002-05-15
CZ9904174A3 (en) 2001-12-12

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