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DE8801976U1 - Connecting part of a line coupling - Google Patents

Connecting part of a line coupling

Info

Publication number
DE8801976U1
DE8801976U1 DE8801976U DE8801976U DE8801976U1 DE 8801976 U1 DE8801976 U1 DE 8801976U1 DE 8801976 U DE8801976 U DE 8801976U DE 8801976 U DE8801976 U DE 8801976U DE 8801976 U1 DE8801976 U1 DE 8801976U1
Authority
DE
Germany
Prior art keywords
temperature
bgr
measuring device
connecting part
pipe section
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
Application number
DE8801976U
Other languages
German (de)
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.)
Voss Automotive GmbH
Original Assignee
Armaturenfabrik Hermann Voss GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Armaturenfabrik Hermann Voss GmbH and Co filed Critical Armaturenfabrik Hermann Voss GmbH and Co
Priority to DE8801976U priority Critical patent/DE8801976U1/en
Publication of DE8801976U1 publication Critical patent/DE8801976U1/en
Priority to DE3903551A priority patent/DE3903551C2/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52293Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672Spin welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124Tongue and groove joints
    • B29C66/1244Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124Tongue and groove joints
    • B29C66/1246Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/32Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322Providing cavities in the joined article to collect the burr
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • B29C66/52291Joining tubular articles involving the use of a socket said socket comprising a stop
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91218Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods using colour change, e.g. using separate colour indicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

•'•DR. SOLF & ZAPF•'•DR. SOLF & ZAPF

ftjgeleeeene Vertreter beim guropaitclien Patentamt Wuppertal · Münöhenftjgeleeene representative at the guropaitclien Patent Office Wuppertal · Munich

european Patent Attorney»European Patent Attorney»

+ll/bu/4910+ll/bu/4910

Armaturenfabrik Hermann Voss GmbH & Co. 5272 Wipperfürth Armaturenfabrik Hermann Voss GmbH & Co. 5272 Wipperfürth

Verbindungsteil einer LeitungskupplungConnecting part of a line coupling

Die Erfindung betrifft ein Verbindungsteil, insbesondere einen Stecker, für eine Leitungskupplung, bestehend aus einem Kunststoff-Verbindungskörper und einem mit diesem in einem Verbindungsbereich durch Reibschweißung verbundenen Kunststoff-Rohrstück.The invention relates to a connecting part, in particular a plug, for a line coupling, consisting of a plastic connecting body and a plastic pipe piece connected to it in a connecting area by friction welding.

Derartige Verbindungsteile sind bekannt und werden z.B. zum Verbinden von Druckmittelleitungen, wie Bremsleitungen u.dgl., verwendet. Dabei wird zur stoffschlüssigen Verbindung des z.B. als Stecker ausgebildeten Verbindungskörpers mit einem Ende eines Kunststoff-Rohres zumindest eines der beiden Teile in eine zu dem anderen Teil relative Rotation versetzt, während die beiden Teile dann in axialer Richtung zusammengeführt werden. Aufgrund der Relativbewegung bzw. ^drehung zwischen den beiden Teilen tritt eine höhe Reibung an der Berührungsfläche und damit eineSuch connecting parts are known and are used, for example, to connect pressure medium lines, such as brake lines, etc. In order to firmly connect the connecting body, which is designed as a plug, to one end of a plastic pipe, at least one of the two parts is set in rotation relative to the other part, while the two parts are then brought together in the axial direction. Due to the relative movement or rotation between the two parts, a high level of friction occurs at the contact surface and thus a

SchlossbfeJche20 Postfach 130113 D-56eeiWH»lä"l .: ."."'.." PatertanwateSchlossbfeJche20 PO Box 130113 D-56eeiWH»lä"l .: ."."'.." Patertanwate

Telefon(0203445096M56472-Tefefax(0202i45T22e : '. '..'. .' '.". DtA.Se*DfcUng.(Mönchen)Telephone(0203445096M56472-Tefefax(0202i45T22e : '. '..'. .''.". DtA.Se*DfcUng.(Mönchen)

Tetec 8591273 soza *..* *..' *..* .'.. ..' '. '·.' (^Zapf,DJpWng.(Wuppertal)Tetec 8591273 soza *..* *..' *..* .'.. ..''.'·.' (^Zapf,DJpWng.(Wuppertal) Dt G. Hartmann, Dipl-Cheni. (München)Dt G. Hartmann, Dipl-Cheni. (Munich)

Temperaturzunahme auf, die zum Schmelzen dee Kunststoff materials und somit zum Verochweißeri der Teile führt. Bei diesem sog. Reibschweißen ist jedoch eine Kontrolle der Qualität der Schweißverbindung schwierig und in der Regel nur durch stichprobenartige Werkstoffprüfung möglich, die aber nachteiligerweise besondere Prüfgeräte erfordert und dsrübsrhinsus subsist sur Zerstörung des geprüften Verbindungsteile führt.Temperature increases, which leads to the melting of the plastic material and thus to the welding of the parts. However, with this so-called friction welding, it is difficult to control the quality of the welded joint and is usually only possible by random material testing, which, however, requires special testing equipment and, in turn, leads to the destruction of the tested connecting parts.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verbindungsteil der gattungsgemäßen Art so zu verbessern, daß eine zerstörungsfreie Kontrolle der Qualität der Schweißverbindung auf einfache und zuverlässige Weise ohne besondere Prüfgeräte möglich ist.The invention is therefore based on the object of improving a connecting part of the generic type in such a way that a non-destructive control of the quality of the welded connection is possible in a simple and reliable manner without special testing equipment.

Erfindungsgemäß wird dies dadurch erreicht, daß der Verbindungskörper und/oder das Rohrstück in der Nähe des Verbindungsbereichs eine Temperatur-Meßeinrichtung aufweisen/ aufweist. Erfindungsgemäß ist es hierdurch möglich, durch eine Überwachung der Temperatur im Verbindungsbereich während der Herstellung der Reibschweißung eindeutige Aussagen über die Qualität der Schweißverbindung zu treffen, da davon ausgegangen werden kann, daß ab einer bestimmten Mindesttemperatur das Material der beiden Teile ausreichend plastifiziert ist, um eine qualitativ hochwertige Schweißverbindung zu gewährleisten. Dies ist, im Gegensatz zu der bekannten stichprobenartigen Prüfung, vorteilhafterweise bei jede» hergestellten Verbindungsteil möglich, wodurch ein hoher Qualitätsstandard erreicht werden kann.According to the invention, this is achieved by the connecting body and/or the pipe section having a temperature measuring device near the connection area. According to the invention, it is thereby possible to make clear statements about the quality of the welded joint by monitoring the temperature in the connection area during the production of the friction weld, since it can be assumed that from a certain minimum temperature the material of the two parts is sufficiently plasticized to ensure a high-quality welded joint. In contrast to the known random testing, this is advantageously possible for each connection part produced, whereby a high quality standard can be achieved.

Besonders vorteilhaft ist es, wenn die Meßeinrichtung aus mindestens einer oberflächlich aufgebrachten Beschichtung aus einem Material besteht, das bei TemperaturänderungIt is particularly advantageous if the measuring device consists of at least one surface-applied coating made of a material that changes when the temperature changes.

zumindest eine seiner physikalischen Eigenschaften, Insbesondere seine Farbe, ändert, da derartige Beschichtungen sehr preiswert z.B. als Temperatur-Folie oder aus Temperatur-Farbe (Lack) realisiert werden können. Die Beschichtung(en) können vorteilhafterweise nach der Herstellung der Reibschweißverbindung auf den Teilen uBrhioihon Aa aia aii-Frt-riinrJ ihror aorinoan Dicke keineat least one of its physical properties, in particular its colour, changes, since such coatings can be produced very inexpensively, e.g. as a temperature film or from temperature paint (varnish). The coating(s) can advantageously be applied to the parts after the friction weld connection has been made , without any thickness

——————————r — a &bgr; &bgr; —————————— r — a &bgr;&bgr;

störenden Einflüsse auf die Funktion des Verbindungsteils haben.have a disruptive influence on the function of the connecting part.

In einer alternativen Ausführung kann die Meßeinrichtung auch durch Materialzusätze gebildet sein, die dem Material des Verbindungskörpers bzw. des Rohrstückes beigemischt sind, und die bei Temperaturänderung ihre physikalischen Eigenschaften, insbesondere ihre Farbe, ändern. In diesem Fall erübrigt sich vorteilhafterweise ein Arbeitsgang, nämlich das Aufbringen oder Befestigen der Meßeinrichtung, so daß diese Ausführung besonders preiswert ist.In an alternative embodiment, the measuring device can also be formed by material additives that are mixed into the material of the connecting body or the pipe section and that change their physical properties, in particular their color, when the temperature changes. In this case, one work step, namely the application or fastening of the measuring device, is advantageously unnecessary, so that this embodiment is particularly inexpensive.

Schließlich ist es ebenfalls möglich, die Meßeinrichtung von einem vorzugsweise elektronischen Meßfühler, z.B. einem Temperatursensor, zu bilden.Finally, it is also possible to form the measuring device from a preferably electronic measuring sensor, e.g. a temperature sensor.

Anhand der Zeichnung soll im folgenden die Erfindung beispielhaft näher erläutert werden. Dabei zeigen:The invention will be explained in more detail below by way of example with reference to the drawing.

Fig. 1 einen Axialschnitt durch eine erste Ausführungsform eines erfindungsgemäßen Verbindungsteils in einem noch nicht montierten Zwischenfabrikationszustand undFig. 1 shows an axial section through a first embodiment of a connecting part according to the invention in an intermediate manufacturing state that has not yet been assembled and

Fig. 2 einen Axialschnitt einer zweiten AusführungsformFig. 2 an axial section of a second embodiment

eines erfindungsgemäßen Verbindungsteils ebenfalls im Zwischenfabrikationszustand.of a connecting part according to the invention also in the intermediate manufacturing state.

t » · · · » IIIt » · · · » III

Bin erfindungsgemaßes Verbindungsteii 2 beeteht due einem Kunststoff-Verbindungekörper 4 und einem Kunetatof£- Rohrstück 6. in der Zeichnung sind der Verbindungekörper und das Rohrstück 6 in einem noch nicht verbundenen Zustand dargestellt.A connecting part 2 according to the invention consists of a plastic connecting body 4 and a Kunetatof£ pipe section 6. In the drawing, the connecting body and the pipe section 6 are shown in a not yet connected state.

ßamüll EM/-» 1 ua4af rlor Ucrht &pgr;&Lgr;&igr;&igr;&eegr;&pgr;&ogr;&Igr;&iacgr;&Lgr;&tgr;&eegr;&bgr;&tgr; &agr;&iacgr;&pgr;&agr; ainh axialßamüll EM/-» 1 ua4af rlor Ucrht &pgr;&Lgr;&igr;&eegr;&pgr;&ogr;&Igr;&iacgr;&Lgr;&tgr;&eegr;&bgr;&tgr;&agr;&iacgr;&pgr;&agr; ainh axial

Or&bgr;treckende, ringförmige Aufnahme 8 auf, in die das Rohretück 6 axial, d.h. in Pfeilrichtung 12, eingeführt werden kann. Innerhalb der Aufnahme 8 des Verbindungskörpers 4 ist vorzugsweise über eine radiale Ringstufe 14 eine Querschnitteverengung 16 gebildet, und zwar derart, daß das in PfeilrichtuTxg 12 eingeführte Rohrstack 6 an der Ringstufe anschlägt. Zur Verbindung der beiden Teile 4, 6 wird nun eines der beiden Teile in Rotation versetzt, während das Rohrstück 6 in die Aufnahme 8 eingeführt wird. Hierdurch tritt an den Berührungsflächen, insbesondere zwischen der Ringstufe 14 und einer vorderen Stirnfläche 18 des Rohrstücks 6 eine Reibung auf, die zum Abschmelzen, und damit zum Verschweißen des Kunststoff-Materials führt.Or has an extending, ring-shaped receptacle 8 into which the pipe section 6 can be inserted axially, i.e. in the direction of the arrow 12. Within the receptacle 8 of the connecting body 4, a cross-sectional constriction 16 is preferably formed via a radial ring step 14, in such a way that the pipe stack 6 inserted in the direction of the arrow 12 strikes the ring step. To connect the two parts 4, 6, one of the two parts is now set in rotation while the pipe section 6 is inserted into the receptacle 8. This causes friction on the contact surfaces, in particular between the ring step 14 and a front end face 18 of the pipe section 6, which leads to melting and thus welding of the plastic material.

In dem Ausführungsbeispiel nach Fig. 2 weist der Verbindungskörper 4 lediglich einen hohlzylindrischen, in das Rohrstück 6 einführbaren Rohrstutzen 22 auf. Auch hier erfolgt die Verbindung durch Reibschweißen, indem zumindest eines der beiden Teile 4, 6 in Rotation versetzt wird, während das Rohrstück 6 in Pfeilrichtung 12 auf den Rohrstutzen 22 aufgeseheben wird. Dabei tritt auch hier an den Berührungsflächen, und zwar zwischen den Außen- und Innenumfangsflachen des Rohrstutzens 22 bzw. des RohrStückes 6 und/oder zwischen der ringförmigen Stirnfläche 13 .'^ ohrstückes 6 und einer gegenüberliegenden, sich an den Rohrstutzen 22 anschließenden, radialen Ringstufe 24 desIn the embodiment according to Fig. 2, the connecting body 4 has only a hollow cylindrical pipe socket 22 that can be inserted into the pipe section 6. Here too, the connection is made by friction welding, in that at least one of the two parts 4, 6 is set in rotation, while the pipe section 6 is lifted onto the pipe socket 22 in the direction of the arrow 12. Here too, friction occurs on the contact surfaces, namely between the outer and inner circumferential surfaces of the pipe socket 22 or the pipe section 6 and/or between the annular end face 13 of the pipe section 6 and an opposite radial annular step 24 of the

Verbindungskörpers 4 eine Reibung auf, die zum Abschmelzen und Verschweißen des Kunststoffmaterials führt.connecting body 4, friction occurs which leads to melting and welding of the plastic material.

Erfindungsgemäß ist nun zur Prüfung der Qualität der Schweißverbindung vorgesehen, daß der Verbindungskörper 4 und/oder das Rohrstück 6 in der Nähe des Verbindungsbereichs 26 eine Temperatur-Meßeinrichtung 30 aufweisen/aufweist.According to the invention, in order to check the quality of the welded connection, the connecting body 4 and/or the pipe section 6 has/have a temperature measuring device 30 in the vicinity of the connection area 26.

In dem dargestellten Ausführungsbeispiel der Erfindung besteht die Meßeinrichtung 30 aus oberflächlich aufgebrachten Beschichtungen 32, wobei diese Beschichtungen erfindungsgemäß aus einem Material bestehen, das bei Temperaturänderung seine physikalischen Eigenschaften, insbesondere seine Farbe ändert. Dabei kann die Beschichtung 32 aus einer Temperatur-Folie oder einer Temperatur-Farbe bestehen. Die Temperatur-Folie kann zweckmäßigerweise eine selbstklebende Beschichtung oder eine Adhäslonsbeschlchtung aufweisen, wobei in diesem Fall die Folie dann vorteilhafterweise mehrmals verwendbar 1st.In the illustrated embodiment of the invention, the measuring device 30 consists of surface-applied coatings 32, whereby these coatings according to the invention consist of a material that changes its physical properties, in particular its color, when the temperature changes. The coating 32 can consist of a temperature film or a temperature paint. The temperature film can expediently have a self-adhesive coating or an adhesive coating, whereby in this case the film can then advantageously be used several times.

Im Beispiel nach Flg. 1 ist eine Beschichtung 32 auf der Außenfläche dee Verbindungskörpere 4, und zwar in einem die Innerhalb der ringförmigen Aufnahme 8 gebildete Ringstufe überdeckenden Oberflächenbereich, sowie alternativ oder zusätzlich hierzu eine Beschichtung 32 auf der Außenfläche des Rohrattiokee 6 angeordnet, und zwar in einem Bereich, der nach der Montage unmittelbar an den Verbindungekörper 4 angrenzt. Im Beispiel nach Fig. 2 kann eine Beschichtung Im an die Stirnfläche 18 angrenzenden Bereich der Umfangeflächen des Rohrstttckes 6 und/oder Im an die Ringstufe 24 angrenzenden Bereich der Oberfläche dee Verblndungskörpers angeordnet sein.In the example according to Fig. 1, a coating 32 is arranged on the outer surface of the connecting body 4, specifically in a surface area covering the annular step formed within the annular receptacle 8, and alternatively or additionally thereto, a coating 32 is arranged on the outer surface of the pipe section 6, specifically in an area that immediately borders the connecting body 4 after assembly. In the example according to Fig. 2, a coating can be arranged in the area of the peripheral surfaces of the pipe section 6 adjacent to the end face 18 and/or in the area of the surface of the connecting body adjacent to the annular step 24.

Alternativ zu der dargestellten Beschichtung 32 ist es erfindungsgemäß ebenfalls möglich, dem Material des Verbindungskörpers 4 und/oder des Rohrstückes 6 Materialzusätze beizumischen, die bei Temperaturänderung ihre physikalischen Eigenschaften, und zwar wiederum insbesondere ihre Farbe, ändern.As an alternative to the coating 32 shown, it is also possible according to the invention to add material additives to the material of the connecting body 4 and/or the pipe section 6, which change their physical properties, and in particular their color, when the temperature changes.

In einer weiteren, nicht dargestellten Ausführungsform der Erfindung ist die Meßeinrichtung 30 von einem vorzugsweise elektronischen Meßfühler, z.B. von einem Temperatursensor gebildet. Hinsichtlich der Anordnung des Meßfühlers gelten analog die obigen Ausführungen in Bezug auf die Beschichtung 32.In a further embodiment of the invention, not shown, the measuring device 30 is formed by a preferably electronic measuring sensor, e.g. a temperature sensor. With regard to the arrangement of the measuring sensor, the above statements with regard to the coating 32 apply analogously.

Die Erfindung ermöglicht eine leichte Überwachung der durch die Grenzflächenreibung hervorgerufenen Temperaturerhöhung, da eich durch diese Temperaturerhöhung insbesondere auch die Farbe der jeweiligen Meßeinrichtung 30 ändert. Dabei kann nun vorteilhafterweise eindeutig eine solche Farbe ermittelt bzw. festgelegt werden, die einer solchen Temperatur entspricht, die eine qualitativ hochwertige Relbechwelßverbindung gewährleistet. Hierdurch braucht lediglich die Meßeinrichtung 30 während des Reibechweißvorganges beobachtet zu werden, wobei nach Erreichen der bestimmten Farbe die Relativbewegung zwischen den beiden Teilen aufgehoben wird, woduroh dann ebenfalls die Orer*zflächenreibung ausbleibt und das Material somit abkühlt. Nach diesem Vorgang 1st eine qualitativ hochwertige Schweißverbindung gewährleistet, ohne daß besondere Werkstoffprüfungen erforderlich wären.The invention enables easy monitoring of the temperature increase caused by the interface friction, since this temperature increase also changes the color of the respective measuring device 30. In this case, a color can now advantageously be clearly determined or set that corresponds to a temperature that ensures a high-quality friction weld connection. As a result, the measuring device 30 only needs to be observed during the friction welding process, whereby after the specific color has been reached, the relative movement between the two parts is eliminated, which also eliminates the interface friction and thus cools the material. After this process, a high-quality weld connection is guaranteed without the need for special material tests.

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Claims (5)

&bull; 'DR. SOLF & ZAPF Zugelassene Vertreter beim Europaischen Patentamt Wuppertal - München European Patent Attorneys +II/bu/4910 Annaturenfabrik Hermann Voss GmbH & Co. Wipperfürth Ansprüche&bull; 'DR. SOLF & ZAPF Authorized Representatives before the European Patent Office Wuppertal - Munich European Patent Attorneys +II/bu/4910 Annaturenfabrik Hermann Voss GmbH & Co. Wipperfürth Claims 1. Verbindungsteil, insbesondere Stecker, für eine Leitungskupplung, bestehend aus einem Kunststoff-Verbindungskörper und einem mit diesem in einem Verbindungsbereich durch Reibschweißung verbundenen Kunststoff-Rohrstück,1. Connecting part, in particular a plug, for a line coupling, consisting of a plastic connecting body and a plastic pipe section connected to it in a connecting area by friction welding, dadurch gekennzeichnet, daß der Verbindungekörper (4) und/oder das Rohrstück (6) in der Nahe des Verbindungsbereichs (26) eine Temperatur-Meßeinrichtung (30) aufweisen/aufweist.characterized in that the connecting body (4) and/or the pipe section (6) have/have a temperature measuring device (30) in the vicinity of the connecting region (26). 2. Verbindungeteil nach Anspruch 1,2. Connecting part according to claim 1, dadurch gekennzeichnet, daß die Meßeinrichtung (30) au§ mindestens einer oberflächlich aufgebrachten Beschichtung (32) aus einem characterized in that the measuring device (30) consists of at least one surface-applied coating (32) made of a SehloHblelOhe 20 'Postfach 130113 ■ D-MMWiAtoMan .! .".'"I." PatentanwälteSehloHblelOhe 20 'PO Box 130113 ■ D-MMWiAtoMan .! .".'"I." Patent Attorneys 1&Mgr;&bgr;«&pgr;|020»44&bgr;0&thgr;&bgr;&Mgr;&bgr;6472·1&bgr;&Mgr;&agr;)((020&eegr;4$'&iacgr;&« &iacgr; ! '..! .' !". Df.A.SoH1 DtpMnfl,(München)1&Mgr;&bgr;«&pgr;|020»44&bgr;0&thgr;&bgr;&Mgr;&bgr;6472·1&bgr;&Mgr;&agr;)((020&eegr;4$'&iacgr;&« &iacgr; ! '..! .'!". Df.A.SoH 1 DtpMnfl,(Munich) Telex:&THgr;8&THgr;1273902a ·..· ·..· '..' .&iacgr;. ,.' '· '··' Chf.Zapf,DipMna(Wuppertal)Telex:&THgr;8&THgr;1273902a ·..· ·..· '..' .&iacgr;. ,.' '· '··' Chf.Zapf,DipMna(Wuppertal) Or. Q. Hartmann, Dipl.-Gnem, (Manchen)Or. Q. Hartmann, Dipl.-Gnem, (Some) Material besteht, das bei Temperaturänderung zumindest eine seiner physikalischen Eigenschaften, Insbesondere seine Farbe, ändert.Material that changes at least one of its physical properties, in particular its colour, when the temperature changes. 3. Verbindungstell nach Anspruch 2,3. Connection point according to claim 2, dadurch gekennzeichnet, daß die Beschichtung (32) aus einer Temperatur-Folie oder einer Temperatur-Farbschicht besteht.characterized in that the coating (32) consists of a temperature film or a temperature paint layer. 4. Verbindungsteil nach Anspruch 1,4. Connecting part according to claim 1, dadurch gekennzeichnet, daß die Meßeinrichtung (30) durch dem Material des Verbindungskörpers (4) und/oder des Rohrstückes (6) beigemischte Materialzusätze gebildet ist, die bei Temperaturänderung zumindest eine ihrer physikalischen Eigenschaften, insbesondere ihre Farbe, ändern.characterized in that the measuring device (30) is formed by material additives mixed into the material of the connecting body (4) and/or the pipe section (6), which change at least one of their physical properties, in particular their color, when the temperature changes. 5. Verbindungsteil nach Anspruch 1,5. Connecting part according to claim 1, dadurch gekennzeichnet, daß die Meßeinrichtung (30) von einem vorzugsweise elektronischen Meßfühler, insbesondere einem Temperatursensor, gebildet ist.characterized in that the measuring device (30) is formed by a preferably electronic measuring sensor, in particular a temperature sensor. It I« Il I ti till ti It I« I'm with you «&bull;&bull;II 11(1 I Il«&bull;&bull;II 11(1 I Il &bull;4 III I Il I 1111&bull;4 III I II I 1111
DE8801976U 1988-02-16 1988-02-16 Connecting part of a line coupling Expired DE8801976U1 (en)

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DE8801976U DE8801976U1 (en) 1988-02-16 1988-02-16 Connecting part of a line coupling
DE3903551A DE3903551C2 (en) 1988-02-16 1989-02-07 Connection part of a line coupling

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EP0378406A2 (en) * 1989-01-11 1990-07-18 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
EP0390748A2 (en) * 1989-03-31 1990-10-03 Geberit AG Welding socket
FR2737548A1 (en) * 1995-07-31 1997-02-07 Nobel Plastiques Friction welded connection mouthpiece for flexible thermoplastic pipework - has accepting end as two concentric cylindrical walls separated by annular space to accept pipe end so eliminating support mandrel
WO2007137553A3 (en) * 2006-06-01 2008-03-27 Luk Lamellen & Kupplungsbau Line, especially hydraulic or pneumatic pressure line
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US5520385A (en) * 1993-07-30 1996-05-28 Composite Development Corporation Article assembled with thermoreponsive material and method
GB9522776D0 (en) * 1995-11-07 1996-01-10 Fusion Group Plc Welded connections
US6199916B1 (en) 1997-05-15 2001-03-13 Itt Manufacturing Enterprises, Inc. Spin welded fluid connector
DE19913500A1 (en) * 1999-03-25 2000-09-28 Mahle Filtersysteme Gmbh Method for connecting two plastic components
US6733047B1 (en) 1999-09-22 2004-05-11 Itt Manufacturing Enterprises, Inc. Quick connector for fuel/vapor applications
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JP3781099B2 (en) * 2000-06-02 2006-05-31 トヨタ自動車株式会社 Hollow product, fluid processing system, and method for joining hollow members
DE10031416A1 (en) * 2000-06-28 2002-01-10 Hilti Ag Friction welding pipe connection and friction-welded rock drilling tool with drilling fluid channel
AR039223A1 (en) * 2003-04-02 2005-02-09 Eduardo Felipe May A DEVICE FOR THE UNION THERMOFUSION OF A THERMOPLASTIC TUBE THAT INCLUDES AN INTERMEDIATE METAL LAYER BETWEEN TWO THERMOPLASTIC LAYERS, WITH A THERMOPLASTIC CONNECTION
US6832785B1 (en) 2003-07-21 2004-12-21 Itt Manufacturing Enterprises, Inc. Spin welded fluid coupling
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FR2872084B1 (en) 2004-06-28 2006-09-01 Legris Sa FRICTION WELDING ELEMENT ON A TUBE END AND CORRESPONDING WELDING METHOD
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EP0378406A2 (en) * 1989-01-11 1990-07-18 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
EP0378406A3 (en) * 1989-01-11 1991-06-12 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
US5366253A (en) * 1989-01-11 1994-11-22 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
US5375889A (en) * 1989-01-11 1994-12-27 Osaka Gas Co., Ltd. Electrofusion joint and hot water supply header using the same
EP0390748A2 (en) * 1989-03-31 1990-10-03 Geberit AG Welding socket
EP0390748A3 (en) * 1989-03-31 1993-06-23 Geberit AG Welding socket
FR2737548A1 (en) * 1995-07-31 1997-02-07 Nobel Plastiques Friction welded connection mouthpiece for flexible thermoplastic pipework - has accepting end as two concentric cylindrical walls separated by annular space to accept pipe end so eliminating support mandrel
EP1859919A3 (en) * 2006-05-24 2010-03-03 Heateflex Corporation Fusion welded fittings with weld bead cover
US8349122B2 (en) 2006-05-24 2013-01-08 Heateflex Corporation Fusion welding fittings with weld bead cover
US10281077B2 (en) 2006-05-24 2019-05-07 Heateflex Corporation Fusion welding fittings with weld bead cover
WO2007137553A3 (en) * 2006-06-01 2008-03-27 Luk Lamellen & Kupplungsbau Line, especially hydraulic or pneumatic pressure line

Also Published As

Publication number Publication date
DE3903551C2 (en) 1998-01-15
DE3903551A1 (en) 1989-08-24

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