EP1354154B1 - Device for tightly closing boreholes that are subjected to the action of pressure medium - Google Patents

Device for tightly closing boreholes that are subjected to the action of pressure medium Download PDF

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Publication number
EP1354154B1
EP1354154B1 EP02701187A EP02701187A EP1354154B1 EP 1354154 B1 EP1354154 B1 EP 1354154B1 EP 02701187 A EP02701187 A EP 02701187A EP 02701187 A EP02701187 A EP 02701187A EP 1354154 B1 EP1354154 B1 EP 1354154B1
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EP
European Patent Office
Prior art keywords
stopper
spring
diameter
piston
impact
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
EP02701187A
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German (de)
French (fr)
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EP1354154A2 (en
Inventor
Klaus Vogel
Dietmar Leuteritz
Siegfried Jentsch
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UKM Umformtechnik und Kraftfahrzeugkomponenten GmbH
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UKM Umformtechnik und Kraftfahrzeugkomponenten GmbH
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Publication of EP1354154A2 publication Critical patent/EP1354154A2/en
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Publication of EP1354154B1 publication Critical patent/EP1354154B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/28—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing resilient bushings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven

Definitions

  • the parts of the seal construction by flat (soft seals or metal-soft material seals) or Profile seals (soft seals or hard seals) to each other seal.
  • Expansion elements are also known that close in the closing opening introduced and in this to expand are brought, whereby a tight closure of the Opening is reached.
  • Expansion elements of the type mentioned above consist of a Sleeve and a pin guided in the sleeve.
  • the sleeve has the shape of a cylinder and is on the entire lateral surface provided with groove-like incisions, so that in Cut results in a jagged surface.
  • the inner surface of the Sleeve is flat and on the front side, from the head of the pen points away, provided with a circumferential bead.
  • the Pen consists of a shaft and a head made of one there is a widening cone, the slender area of the cone corresponds to the inner diameter of the sleeve. in the Area of the largest diameter is through the conical head ended a circumferential bead.
  • the length of the sleeve to Bead corresponds to the length of the head to the bead.
  • the first step is to seal the sleeve in which the head of the pen is in the starting position in the sealed hole introduced.
  • the outside diameter of the The sleeve corresponds approximately to the diameter of the bore (0 - 0.12 mm larger).
  • the conical Head by the action of a tensile force on the shaft Moved towards the bead of the sleeve, creating the braced Sleeve expands and extends with its grooved surface to the hole.
  • the head is moved so far until he puts on the bead of the sleeve or until the Bead of the head lies against the sleeve. After putting on on the beads there is an increase in force, which is the severing of the shaft from the head to the one in front of the head Has a predetermined breaking point.
  • This sealing plug system is very suitable, a tight one Closure of pressurized cavities to reach.
  • the high manufacturing technology is a disadvantage Effort and the high precision with which both the Sleeve as well as the pin and also the bore to be sealed are to be produced. This is reflected in the price of the sealing plug system out.
  • the use of this system is therefore relative expensive and its use in mass production has one significant influence on the unit price. This will continue System only for closures from a bore diameter of 4 mm offered. The system is for smaller diameters apparently not producible with reasonable effort.
  • plastic deformation e.g. by means of a plastic deformable plug made of aluminum
  • a plastic deformable plug made of aluminum is a tight closure a bore of a cavity under pressure possible.
  • the generation the plastic deformation resulting in the seal to achieve without loading the workpiece, which in particular intolerable for thin-walled and long workpieces Can cause deformation (bulging or buckling), that negatively affect their usability.
  • the invention has for its object a constructive and a technically simple solution for sealing propose boreholes under pressure, with which also provides a secure seal between the bore and the plug at high internal pressure.
  • FIG. 1 shows a workpiece 1 which has a bore 2, whose diameter tapers stepwise, the Area 2b the larger diameter compared to area 2a having.
  • a plug 3 is located in the area 2b of the bore 2 inserted from a plastically deformable material such as about aluminum can exist.
  • the diameter of the plug 3 is about 10% smaller than the diameter of the bore 2 in Area 2a and about 1.5 - 4.5% smaller than the diameter hole 2 in area 2b.
  • a firing pin 4 Before the stopper 3 is with a distance X a firing pin 4.
  • the diameter of the Firing pin 4 on its side facing the stopper 3 is about 80-90%, preferably 85%, of the diameter of the plug 3.
  • the firing pin 4 is in an element 5 slidably guided. In the starting position the Firing pin 4 by means of a spring 6, which is between a Collar 7 and a bearing 8 is arranged with the collar 7 pressed against a stop 9, whereby the distance x between Firing pin 4 and plug 3 are created.
  • the firing pin 4 partially protrudes through the stop 9. Before the end of the firing pin protruding through the stop 9 4 stands at a distance y a stamp 10, which is the end a piston rod 11 forms, at the other end a in a piston 12 guided piston 13 is arranged.
  • the Cylinder 12 is abruptly connected via a feed line 20 Compressed air supplied. In the starting position, the position the stamp 10 fixed by a stop 19.
  • the cylinder 12 is fixed to a slide 14, which in turn is arranged on a guide 15.
  • the carriage 14 is started by means of a spring 16 pressed against a stop 17.
  • the tension of the spring 16 can be changed by means of an adjusting nut 18.
  • Figure 2 shows a device according to the invention in the end position on average.
  • the device ensures that the kinetic energy of the Systems Piston - Piston Rod - Stamp on the Plug 3 acts, the impact is finely dosed.
  • the impact on the stopper 3 causes the stopper 3 partly flows into the area 2a of the bore 2 and in the Area 2a of hole 2 is placed intensively on the wall.
  • closures produced in this way withstand significantly higher pressures than Closures by slowly pushing the plugs in the hole is made.
  • the dosage of the impact effect ensures that the one required to create the tight seal Forming work is initiated in the stopper without it unwanted deformations of the workpiece to be locked comes.

Abstract

According to the invention, the piston (13) is suddenly driven out due to the action of the compressed air that is conducted into the cylinder (12), whereby displacing, via the piston rod (11) and the punch (10), the impact pin (4) against the stopper (3) that is inserted inside area (2b) of the borehole (2). The stopper (3) is both driven into area (2a) of the borehole (2) as well as pressed against the wall of the area (2b) of the borehole (2) due to the suddenly effective energy of the elements of the system (piston piston rod punch) that are placed in motion. The portions of energy reflected during impact, i.e. the rebound, are directed via the slide (14) into the spring (16) in which they are absorbed by means of elastic deformation. A gap briefly occurs between the slide (14) and the stop (17). The tension of the spring (16) that can be adjusted by the adjusting nut (18) is used to establish the extent of the magnitude of the rebound energy, which is absorbed by the spring and which is thus not available for deforming the stopper (3). In the event of a low spring tension, the portion of energy, which does not act upon the stopper (3), is greater than in the event of a high spring tension. This enables a fine dosing of the impact work acting upon the stopper (3).

Description

[Stand der Technik][State of the art]

Es ist eine Vielzahl von Vorrichtungen und Konstruktionen (siehe z. B. DE-A-19831989) zur Verhinderung oder Verminderung des Aus- und Überströmens von gasförmigen, flüssigen oder körnigen Stoffen aus Behältern oder Rohren durch Spalte bekannt.There are a variety of devices and designs (see e.g. DE-A-19831989) for Prevention or reduction of the outflow and overflow of gaseous, liquid or granular substances from containers or pipes known through gaps.

Zur Verhinderung einer Strömung von Räumen höheren Drucks in solche niederen Drucks bei zueinander ruhenden Teilen ist es bekannt, die Teile der Dichtungskonstruktion durch Flach-(Weichdichtungen bzw. Metall-Weichstoffdichtungen) oder Profildichtungen (Weichdichtungen oder Hartdichtungen) zueinander abzudichten.To prevent the flow of rooms of higher pressure in it is such a low pressure with parts resting against each other known, the parts of the seal construction by flat (soft seals or metal-soft material seals) or Profile seals (soft seals or hard seals) to each other seal.

Weiterhin ist es bekannt, ruhende Teile direkt ohne Zwischenglied abzudichten. Dazu müssen entweder die Unebenheiten der Dichtflächen durch das Auf- oder Einschleifen mit Schleifpasten weitgehend beseitigt werden, oder es muß eine die Dichtung ergebende plastische Verformung des Grundwerkstoffs erfolgen.Furthermore, it is known to rest parts directly without an intermediate link seal. To do this, either the bumps of the sealing surfaces by grinding or grinding in Grinding pastes are largely eliminated, or there must be one plastic deformation of the base material resulting in the seal respectively.

Es sind auch Expansionselemente bekannt, die in die dicht zu verschließende Öffnung eingebracht und in dieser zum Expandieren gebracht werden, wodurch ein dichter Verschluß der Öffnung erreicht wird. Expansion elements are also known that close in the closing opening introduced and in this to expand are brought, whereby a tight closure of the Opening is reached.

Expansionselemente der oben genannten Art bestehen aus einer Hülse und einem in der Hülse geführten Stift. Die Hülse hat die Form eines Zylinders und ist an der gesamten Mantelfläche mit rillenartigen Einschnitten versehen, so daß sich im Schnitt eine gezackte Oberfläche ergibt. Die Innenfläche der Hülse ist eben und an der Stirnseite, die vom Kopf des Stiftes weg weist, mit einem umlaufenden Wulst versehen. Der Stift besteht aus einem Schaft und einem Kopf der aus einem sich erweiternden Konus besteht, wobei der schlanke Bereich des Konus dem Innendurchmesser der Hülse entspricht. Im Bereich des größten Durchmessers wird der konische Kopf durch einen umlaufenden Wulst beendet. Die Länge der Hülse bis zum Wulst entspricht der Länge des Kopfes bis zum Wulst. Zum Abdichten wird in einem ersten Schritt die Hülse, in der sich der Kopf des Stiftes in der Ausgangslage befindet, in die abzudichtende Bohrung eingeführt. Der Außendurchmesser der Hülse entspricht dabei in etwa dem Durchmesser der Bohrung (0 - 0,12 mm größer). In einem zweiten Schritt wird der konische Kopf durch das Einwirken einer Zugkraft auf den Schaft in Richtung der Wulst der Hülse verschoben, wodurch die abgestützte Hülse expandiert und sich mit ihrer gerillten Oberfläche an die Bohrung anlegt. Der Kopf wird soweit verschoben, bis er sich an den Wulst der Hülse anlegt bzw. bis der Wulst des Kopfes sich an die Hülse anlegt. Nach dem Anlegen an die Wülste kommt es zu einem Kraftanstieg, der das Abtrennen des Schaftes vom Kopf an der vor dem Kopf befindlichen Sollbruchstelle zur Folge hat.Expansion elements of the type mentioned above consist of a Sleeve and a pin guided in the sleeve. The sleeve has the shape of a cylinder and is on the entire lateral surface provided with groove-like incisions, so that in Cut results in a jagged surface. The inner surface of the Sleeve is flat and on the front side, from the head of the pen points away, provided with a circumferential bead. The Pen consists of a shaft and a head made of one there is a widening cone, the slender area of the cone corresponds to the inner diameter of the sleeve. in the Area of the largest diameter is through the conical head ended a circumferential bead. The length of the sleeve to Bead corresponds to the length of the head to the bead. To the The first step is to seal the sleeve in which the head of the pen is in the starting position in the sealed hole introduced. The outside diameter of the The sleeve corresponds approximately to the diameter of the bore (0 - 0.12 mm larger). In a second step, the conical Head by the action of a tensile force on the shaft Moved towards the bead of the sleeve, creating the braced Sleeve expands and extends with its grooved surface to the hole. The head is moved so far until he puts on the bead of the sleeve or until the Bead of the head lies against the sleeve. After putting on on the beads there is an increase in force, which is the severing of the shaft from the head to the one in front of the head Has a predetermined breaking point.

Dieses Dichtstopfensystem ist sehr gut geeignet, einen dichten Verschluß von druckmittelbeaufschlagten Hohlräumen zu erreichen. Von Nachteil sind aber der hohe fertigungstechnische Aufwand und die hohe Präzision, mit denen sowohl die Hülse als auch der Stift und auch die abzudichtende Bohrung herzustellen sind. Das drückt sich im Preis des Dichtstopfensystems aus. Daher ist der Einsatz dieses Systems relativ teuer und dessen Verwendung in der Massenproduktion hat einen deutlichen Einfluß auf den Stückpreis. Weiterhin wird dieses System erst für Verschlüsse ab einem Bohrungsdurchmesser von 4 mm angeboten. Für kleinere Durchmesser ist das System offenbar nicht mit vertretbarem Aufwand herstellbar.This sealing plug system is very suitable, a tight one Closure of pressurized cavities to reach. However, the high manufacturing technology is a disadvantage Effort and the high precision with which both the Sleeve as well as the pin and also the bore to be sealed are to be produced. This is reflected in the price of the sealing plug system out. The use of this system is therefore relative expensive and its use in mass production has one significant influence on the unit price. This will continue System only for closures from a bore diameter of 4 mm offered. The system is for smaller diameters apparently not producible with reasonable effort.

Mittels plastischer Verformung, z.B. mittels eines plastisch verformbaren Stopfens aus Aluminium, ist ein dichter Verschluß einer Bohrung eines druckmittelbeaufschlagten Hohlraums möglich. Allerdings ist, da der Durchmesser des Stopfens größer als der Durchmesser der Bohrung ist, die Erzeugung der die Dichtung ergebenden plastischen Verformung nicht ohne Belastung des Werkstücks zu erreichen, was insbesondere bei dünnwandigen und langen Werkstücken zu nicht tolerierbaren Verformungen (ausbauchen bzw. ausknicken) führen kann, die deren Brauchbarkeit negativ beeinträchtigen.By means of plastic deformation, e.g. by means of a plastic deformable plug made of aluminum, is a tight closure a bore of a cavity under pressure possible. However, because of the diameter of the plug is larger than the diameter of the bore, the generation the plastic deformation resulting in the seal to achieve without loading the workpiece, which in particular intolerable for thin-walled and long workpieces Can cause deformation (bulging or buckling), that negatively affect their usability.

Es ist auch schon vorgeschlagen worden, Bohrungen eines druckmittelbeaufschlagten Hohlraumes mittels eines Stopfens aus Aluminium zu verschließen, der gegenüber der zu schließenden Bohrung ein Einlegespiel aufweist. Der Stopfen wird bei dieser Lösung nach dem Einlegen in die Bohrung mittels eines Stempels, der den Stopfen mit langsam steigender Kraft gegen einen Absatz in der Bohrung drückt, so verformt, daß er sich an die Wandung der Bohrung anlegt. Der auf diese Weise hergestellte Verschluß bietet bei geringem Innendruck eine brauchbare Lösung. Hohlräume mit höheren Drücken sind mit diesem Verschluß nicht sicher abzudichten.It has also been proposed to drill a hole pressurized cavity by means of a plug made of aluminum, the opposite of the one to be closed Hole has an insertion game. The stopper will with this solution, after inserting it into the hole of a stamp that the plug with slowly increasing force presses against a shoulder in the bore, deformed so that it lies against the wall of the hole. That way manufactured closure offers a low internal pressure viable solution. Cavities with higher pressures are included not to securely seal this closure.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, eine konstruktiv und fertigungstechnisch einfache Lösung für die Abdichtung von druckmittelbeaufschlagten Bohrungen vorzuschlagen, mit der eine sichere Abdichtung zwischen Bohrung und Stopfen auch bei hohem Innendruck realisiert wird.The invention has for its object a constructive and a technically simple solution for sealing propose boreholes under pressure, with which also provides a secure seal between the bore and the plug at high internal pressure.

[Beispiele][Examples]

Nachfolgen wird die Erfindung anhand eines Ausführungsbeispiels erläutert.The invention will follow on the basis of an exemplary embodiment explained.

Es zeigen:

Figur 1
eine erfindungsgemäße Einrichtung in der Ausgangsposition im Schnitt,
Figur 2
eine erfindungsgemäße Vorrichtung in der Endposition im Schnitt,
Show it:
Figure 1
a device according to the invention in the starting position in section,
Figure 2
a device according to the invention in the end position in section,

Figur 1 zeigt ein Werkstück 1 , das eine Bohrung 2 aufweist, deren Durchmesser sich stufenförmig verjüngt, wobei der Bereich 2b den größeren Durchmesser gegenüber dem Bereich 2a aufweist. In den Bereich 2b der Bohrung 2 ist ein Stopfen 3 eingelegt, der aus einem plastisch verformbaren Werkstoff wie etwa Aluminium bestehen kann. Der Durchmesser des Stopfens 3 ist etwa 10% kleiner als der Durchmesser der Bohrung 2 im Bereich 2ä und etwa 1,5 - 4,5% kleiner als der Durchmesser der Bohrung 2 im Bereich 2b. Vor dem Stopfen 3 steht mit einem Abstand X ein Schlagbolzen 4. Der Durchmesser des Schlagbolzens 4 an seiner dem Stopfen 3 zugewandten Seite liegt bei etwa 80 - 90%, vorzugsweise 85%, des Durchmessers des Stopfens 3. Der Schlagbolzen 4 ist in einem Element 5 verschiebbar geführt. In der Ausgangsposition wird der Schlagbolzen 4 mittels einer Feder 6, die zwischen einem Kragen 7 und einem Lager 8 angeordnet ist, mit dem Kragen 7 gegen einen Anschlag 9 gedrückt, wodurch der Abstand x zwischen Schlagbolzen 4 und Stopfen 3 entsteht. FIG. 1 shows a workpiece 1 which has a bore 2, whose diameter tapers stepwise, the Area 2b the larger diameter compared to area 2a having. A plug 3 is located in the area 2b of the bore 2 inserted from a plastically deformable material such as about aluminum can exist. The diameter of the plug 3 is about 10% smaller than the diameter of the bore 2 in Area 2a and about 1.5 - 4.5% smaller than the diameter hole 2 in area 2b. Before the stopper 3 is with a distance X a firing pin 4. The diameter of the Firing pin 4 on its side facing the stopper 3 is about 80-90%, preferably 85%, of the diameter of the plug 3. The firing pin 4 is in an element 5 slidably guided. In the starting position the Firing pin 4 by means of a spring 6, which is between a Collar 7 and a bearing 8 is arranged with the collar 7 pressed against a stop 9, whereby the distance x between Firing pin 4 and plug 3 are created.

Der Schlagbolzen 4 ragt teilweise durch den Anschlag 9 hindurch. Vor dem durch den Anschlag 9 ragenden Ende des Schlagbolzens 4 steht mit Abstand y ein Stempel 10, der das Ende einer Kolbenstange 11 bildet, an deren anderem Ende ein in einem Zylinder 12 geführter Kolben 13 angeordnet ist. Der Zylinder 12 wird über eine Zuleitung 20 schlagartig mit Druckluft versorgt. In der Ausgangsposition wird die Position des Stempels 10 durch einen Anschlag 19 fixiert.The firing pin 4 partially protrudes through the stop 9. Before the end of the firing pin protruding through the stop 9 4 stands at a distance y a stamp 10, which is the end a piston rod 11 forms, at the other end a in a piston 12 guided piston 13 is arranged. The Cylinder 12 is abruptly connected via a feed line 20 Compressed air supplied. In the starting position, the position the stamp 10 fixed by a stop 19.

Der Zylinder 12 ist fest mit einem Schlitten 14 verbunden, der seinerseits auf einer Führung 15 angeordnet ist. In der Ausgangsposition wird der Schlitten 14 mittels einer Feder 16 gegen einen Anschlag 17 gedrückt. Die Spannung der Feder 16 kann mittels einer Stellmutter 18 verändert werden.The cylinder 12 is fixed to a slide 14, which in turn is arranged on a guide 15. In the The carriage 14 is started by means of a spring 16 pressed against a stop 17. The tension of the spring 16 can be changed by means of an adjusting nut 18.

Figur 2 zeigt eine erfindungsgemäße Vorrichtung in der Endposition im Schnitt.Figure 2 shows a device according to the invention in the end position on average.

Die erfindungsgemäße Vorrichtung funktioniert wie folgt:

  • Infolge der Wirkung der in den Zylinder 12 geleiteten Druckluft wird der Kolben 13 schlagartig ausgefahren und bewegt über die Kolbenstange 11 und den Stempel 10 den Schlagbolzen 4 gegen den in den Bereich 2b der Bohrung 2 eingelegten Stopfen 3. Der Stopfen 3 wird aufgrund der schlagartig einwirkenden Energie der in Bewegung gesetzten Elemente des Systems Kolben - Kolbenstange - Stempel sowohl in den Bereich 2a der Bohrung 2 eingeschlagen als auch an die Wandung des Bereichs 2b der Bohrung 2 gepreßt. Die beim Schlag reflektierten Energieanteile, d.h. der Rückschlag, werden über den Schlitten 14 in die Feder 16 geleitet und von dieser durch elastische Verformung abgefangen. Es entsteht kurzzeitig ein Abstand z zwischen dem Schlitten 14 und dem Anschlag 17 (Fig. 2). Durch die über die Stellmutter 18 einstellbare Spannung der Feder 16 wird die Größe des Betrages der Rückschlagenergie festgelegt, der von der Feder aufgenommen wird und so nicht für die Verformung des Stopfens 3 zur Verfügung steht. Bei geringer Federspannung ist der Anteil der Energie, die nicht auf den Stopfen 3 einwirkt, größer als bei hoher Federspannung. Auf diese Weise wird die auf den Stopfen 3 einwirkende Schlagarbeit fein dosiert.
    • The device according to the invention works as follows:
  • As a result of the effect of the compressed air fed into the cylinder 12, the piston 13 is suddenly extended and moves the firing pin 4 against the plug 3 inserted in the region 2b of the bore 2 via the piston rod 11 and the plunger 10. The plug 3 becomes active due to the sudden action Energy of the elements of the piston-piston rod-punch system set in motion is both struck into the region 2a of the bore 2 and pressed against the wall of the region 2b of the bore 2. The energy components reflected during the impact, ie the kickback, are guided into the spring 16 via the slide 14 and intercepted by the latter by elastic deformation. There is a short distance z between the carriage 14 and the stop 17 (Fig. 2). The size of the amount of kickback energy which is absorbed by the spring and is therefore not available for the deformation of the plug 3 is determined by the tension of the spring 16 which can be adjusted via the adjusting nut 18. With a low spring tension, the proportion of the energy that does not act on the plug 3 is greater than with a high spring tension. In this way, the impact work acting on the stopper 3 is finely metered.

    • Durch die erfindungsgemäße Anordnung der Bestandteile der Vorrichtung wird gewährleistet, daß die Bewegungsenergie des Systems Kolben - Kolbenstange - Stempel schlagartig auf den Stopfen 3 einwirkt, wobei die Schlagwirkung fein dosiert ist.Due to the arrangement of the components of the invention The device ensures that the kinetic energy of the Systems Piston - Piston Rod - Stamp on the Plug 3 acts, the impact is finely dosed.

    Der Schlag auf den Stopfen 3 führt dazu, daß der Stopfen 3 zum Teil in den Bereich 2a der Bohrung 2 fließt und sich im Bereich 2a der Bohrung 2 intensiv an die Wand anlegt.The impact on the stopper 3 causes the stopper 3 partly flows into the area 2a of the bore 2 and in the Area 2a of hole 2 is placed intensively on the wall.

    Es hat sich gezeigt, daß auf diese Weise hergestellte Verschlüsse von Bohrung deutlich höheren Drücken standhalten als Verschlüsse, die durch langsames Eindrücken der Stopfen in die Bohrung hergestellt sind.It has been shown that closures produced in this way withstand significantly higher pressures than Closures by slowly pushing the plugs in the hole is made.

    Mir der Dosierung der Schlagwirkung wird gewährleistet, daß die für das Herstellen des dichten Verschlusses erforderliche Umformarbeit in den Stopfen eingeleitet wird, ohne das es zu ungewollten Deformierungen des zu verschließenden Werkstücks kommt. The dosage of the impact effect ensures that the one required to create the tight seal Forming work is initiated in the stopper without it unwanted deformations of the workpiece to be locked comes.

    [Bezugszeichenliste][REFERENCE LIST]

    11
    Werkstückworkpiece
    22
    Bohrung (Bereich 2a; Bereich 2b)Bore (area 2a; area 2b)
    33
    StopfenPlug
    44
    Schlagbolzenfiring pin
    55
    Elementelement
    66
    Federfeather
    77
    Kragencollar
    88th
    Lagercamp
    99
    Anschlagattack
    1010
    Stempelstamp
    1111
    Kolbenstangepiston rod
    1212
    Zylindercylinder
    1313
    Kolbenpiston
    1414
    Schlittencarriage
    1515
    Führungguide
    1616
    Federfeather
    1717
    Anschlagattack
    1818
    Stellmutteradjusting nut
    1919
    Anschlagattack
    2020
    Zuleitungsupply

    Claims (6)

    1. Device for tightly closing bores which are subjected to a pressure medium, in which a stopper (3) is inserted in the larger region (2b) of a stepped bore (2), characterised in that
      a) a displaceably guided impact pin (4) is located with a spacing x before the stopper (3), which consists of a plastically deformable material,
      b) with spacing y before the end of the impact pin (4) a punch (10) is located which forms the end of a piston rod (11), at the other end thereof a piston (13) guided in a cylinder (12) is arranged, the cylinder (12) being connected to a supply line (20) for an impact type compressed air supply line,
      c) the cylinder (12) is tightly connected to a carriage (14), which in turn is arranged on a guide (15) and in the initial position is pressed against a stop (17) by means of a spring (16), the tension of the spring (16) being adjustable.
    2. Device according to claim 1, characterised in that the diameter of the stopper (3), which can consist of aluminium, is approximately 10% smaller than the diameter of the bore (2) in the region (2a) and approximately 1.5 - 4.5% smaller than the diameter of the bore (2) in the region (2b).
    3. Device according to claims 1 and 2, characterised in that the diameter of the impact pin (4) at its side facing the stopper (3) is approximately 80 - 90%, preferably 85%, of the diameter of the stopper (3).
    4. Device according to claims 1 to 3, characterised in that the impact pin (4) is displaceably guided in an element (5) and in the initial position is pressed by means of a spring (6), which is arranged between a collar (7) and a bearing (8), with the collar (7) against a stop (9).
    5. Device according to claims 1 to 4, characterised in that the position of the punch (10) is fixed in the initial position by a stop (19).
    6. Device according to claims 1 to 5, characterised in that the tension of the spring (16) is adjusted by means of an adjusting nut (18).
    EP02701187A 2001-01-15 2002-01-11 Device for tightly closing boreholes that are subjected to the action of pressure medium Expired - Lifetime EP1354154B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE10102452 2001-01-15
    DE10102452A DE10102452C2 (en) 2001-01-15 2001-01-15 Device for sealing bores under pressure
    PCT/DE2002/000087 WO2002055911A2 (en) 2001-01-15 2002-01-11 Device for tightly closing boreholes that are subjected to the action of pressure medium

    Publications (2)

    Publication Number Publication Date
    EP1354154A2 EP1354154A2 (en) 2003-10-22
    EP1354154B1 true EP1354154B1 (en) 2004-08-25

    Family

    ID=7671172

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02701187A Expired - Lifetime EP1354154B1 (en) 2001-01-15 2002-01-11 Device for tightly closing boreholes that are subjected to the action of pressure medium

    Country Status (5)

    Country Link
    EP (1) EP1354154B1 (en)
    AT (1) ATE274663T1 (en)
    AU (1) AU2002234500A1 (en)
    DE (3) DE10102452C2 (en)
    WO (1) WO2002055911A2 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN104149068B (en) * 2014-07-18 2016-05-18 江苏中烟工业有限责任公司 The pneumatic erecting tools of a kind of infuser sealing ring

    Family Cites Families (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2691818A (en) * 1952-03-31 1954-10-19 Jr Dean M Rockwell Method and apparatus for use in making valve protector caps for compressed gas cylinders
    GB794375A (en) * 1955-04-14 1958-04-30 Christian Schondelmaier Method and apparatus for cold-pressing objects
    JPH01137316A (en) * 1987-11-25 1989-05-30 Hitachi Ltd Semiconductor integrated circuit device
    DE3831523A1 (en) * 1988-09-16 1990-03-22 Koenig Verbindungstech Ag METHOD FOR SEALING A HOLE
    DE4142153A1 (en) * 1991-12-20 1993-06-24 Bosch Gmbh Robert LOCKING FOR PRESSURE-DRIVING BORES OR CHANNELS IN A HOUSING
    DE4211143A1 (en) * 1992-04-03 1993-10-07 Bosch Gmbh Robert Press-fitting arrangement for component into recess of workpiece - incorporates strain-gauge transducer whose output signal arrests downward pressure of die on insert and guard ring
    DE4439059A1 (en) * 1994-11-02 1996-05-09 Teves Gmbh Alfred Closing device for closing pressure-carrying channels in a housing
    NL1007976C2 (en) * 1998-01-07 1999-07-08 Metaalgieterij Giesen B V Method and sealing plug for sealing a core hole in a casting.
    DE19831989C2 (en) * 1998-07-16 2003-10-02 Abb Patent Gmbh Assembly tool for pressing and pulling off a pressure ring
    DE19846379A1 (en) * 1998-10-08 2000-04-13 Bosch Gmbh Robert Closure element for a stepped bore of a component
    DE19859370C1 (en) * 1998-12-22 2000-02-24 Umformtechnik Und Kraftfahrzeu Seal plug for motor vehicle pipe has break off pin to expand plug into pipe bore
    DE19948425B4 (en) * 1999-05-11 2014-08-14 Continental Teves Ag & Co. Ohg Closing device for closing holes in a housing

    Also Published As

    Publication number Publication date
    DE10102452C2 (en) 2003-03-13
    ATE274663T1 (en) 2004-09-15
    WO2002055911A3 (en) 2003-02-20
    DE50200895D1 (en) 2004-09-30
    AU2002234500A1 (en) 2002-07-24
    DE10290088D2 (en) 2003-12-24
    WO2002055911A2 (en) 2002-07-18
    DE10102452A1 (en) 2002-11-07
    EP1354154A2 (en) 2003-10-22

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