DE4028876A1 - Gearwheel tooth attachment system - has shaped teeth fed from magazine to cylindrical body to be welded into place - Google Patents

Gearwheel tooth attachment system - has shaped teeth fed from magazine to cylindrical body to be welded into place

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Publication number
DE4028876A1
DE4028876A1 DE19904028876 DE4028876A DE4028876A1 DE 4028876 A1 DE4028876 A1 DE 4028876A1 DE 19904028876 DE19904028876 DE 19904028876 DE 4028876 A DE4028876 A DE 4028876A DE 4028876 A1 DE4028876 A1 DE 4028876A1
Authority
DE
Germany
Prior art keywords
magazine
base
tooth segments
welded
place
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.)
Withdrawn
Application number
DE19904028876
Other languages
German (de)
Inventor
Guenter Uebelein
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE4028876A1 publication Critical patent/DE4028876A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/17Toothed wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

To form cogwheels, tooth segments (4) are fed from a side magazine (6) to the surface of a rotating cylindrical base (3), to be fixed by a laying ring (7). One or more press units (1) and counter holders (2) are on the radius above the tooth segments. The base body (3) and its central drilling are fitted to a spindle with a drive and brake mechanism. The press unit (1) is moved in the same direction as the base (3) when it has reached the required rotary speed and, at the same time, presses the tooth segments (4) against it. The counter holder (2) gives the fixing and exact alignment. After the base (3) has stopped, and the welding action is complete, the press unit (1) is returned to its start position. USE/ADVANTAGE - The system gives a rapid assembly of preshaped gear teeth to be welded into place on the toothed body, without requiring extensive grinding and milling.

Description

Die Erfindung bezieht sich auf die Herstellung von Zahnrädern mittels Reibschweißen. Zahnräder werden bekanntlich durch unterschiedlichste Verfahren hergestellt. Je nach Anforderung an Genauigkeit, Laufruhe usw. erfolgt dies durch Gießen, Pressen, Schmieden im Gesenk und Walzen. Die Verzahnungen werden auf Zahnradstoßmaschinen oder Abwälzfräsmaschinen geschaffen. Um später einen ruhigen Lauf der Zahnräder zu erhalten, werden sie in der Regel nach dem Härten geschliffen.The invention relates to the manufacture of gears by means of friction welding. As is well known, gears are made by different Process manufactured. Depending on the requirement for accuracy, Smooth running etc., this is done by casting, pressing, Drop forging and rolling. The teeth are on Gear shaping machines or gear hobbing machines created. Around later they will get a smooth running of the gears usually ground after hardening.

Als Nachteil wird es empfunden, daß dazu ein großer maschinentechnischer Aufwand für Zahnradstoßmaschinen, Abwälzfräsmaschinen erforderlich ist sowie Materialabfällen durch spanabhebende Formgebung entstehen und ein hoher Energie- und Zeitaufwand benötigt wird.It is perceived as a disadvantage that a large mechanical engineering Effort for gear shaping machines, gear hobbing machines is required as well as material waste by cutting Shaping arise and a high expenditure of energy and time is required becomes.

Die Erfindung stellt sich die Aufgabe, das an sich bekannte Reibschweißverfahren mittels einer neuen Vorrichtung für die Herstellung von Zahnrädern anwendbar zu machen und damit den Herstellungsaufwand zu verringern. Der Grundkörper für das Zahnrad soll dabei durch Gießen, Pressen, Schmieden oder Walzen hergestellt werden. Die Zahnsegmente werden kontinuierlich hergestellt im Querschnitt mit ihrer späteren Kontur durch Walzen oder Strangguß und anschließendem Zuschneiden auf die erforderliche Länge. The invention has as its object the known Friction welding process using a new device for the To make the manufacture of gears applicable and thus the To reduce manufacturing costs. The basic body for the gear should be produced by casting, pressing, forging or rolling will. The tooth segments are manufactured continuously in cross section with its later contour by rolling or continuous casting and then cutting to the required size Length.  

Erfindungsgemäß besteht die Vorrichtung aus nachstehenden Einzelheiten, die entsprechend der Zähnezahl über den Umfang des Zahnrad-Grundkörpers verteilt angeordnet sind und das jeweilige Zahnsegment einschließen: Einer oder mehrere Preßvorrichtung(en), Gegenhalter, Magazin für das Zahnsegment und entgegengesetzt dazu einen Auflagering, wie in den Patentansprüchen angegeben.According to the invention, the device consists of the following details, which correspond to the number of teeth over the circumference of the Gear main body are arranged distributed and the respective Include tooth segment: One or more pressing device (s), Counterholder, magazine for the tooth segment and opposite to it a support ring as specified in the claims.

Erforderlichenfalls sollte der Grundkörper für das Zahnrad vorgedreht werden. Zum Reibschweißen wird er senkrecht, bei Vollmaterial beidseitig bzw. bei axial vorhandener Bohrung, in diese eingespannt. Die Zahnsegmente sind in einer starren Haltevorrichtung um den Grundkörper angeordnet. Nach Erreichen der für den Schweißvorgang erforderlichen Drehzahl des Grundkörpers werden die Zähne an diesen vermittels einer Preßvorrichtung gedrückt und durch die Rotation auf die erforderliche Schweißtemperatur gebracht. Danach wird der Grundkörper entsprechend schnell abgebremst, so daß anschließend die Zahnsegmente mit dem Grundkörper verschweißen. Nach einer Erwärmungseinheit der aneinander reibenden Oberfläche des Grundkörpers mit denen der Zahnsegmente von 1 . . . 30 s wird der Grundkörper in 0,1 . . . 0,5 s abgebremst, um sofort und ohne Übergang den Schweißprozeß nach einem vorgegebenen Druckprogramm für die Preßvorrichtung in 1 . . . 5 s zu realisieren.If necessary, the base body for the gear should be turned will. For friction welding, it becomes vertical, with solid material on both sides or in the case of an axially existing bore clamped. The tooth segments are in a rigid holding device arranged around the base body. After reaching the for the Welding process required speed of the base body the teeth on this pressed by means of a pressing device and by rotating to the required welding temperature brought. Then the base body is braked accordingly quickly, so that the tooth segments with the base body weld. After a heating unit the rubbing against each other Surface of the base body with those of the tooth segments of 1 . . . The base body becomes 0.1 in 30 s. . . Braked 0.5 s to immediately and without transition the welding process according to a predetermined Printing program for the pressing device in FIG. 1. . . To realize 5 s.

AusführungsbeispielEmbodiment

In Fig. 1 sind die Hauptmerkmale der erfindungsgemäßen Lösung in der Draufsicht dargestellt. Fig. 2 stellt alle Vorrichtungselemente dar.In Fig. 1, the main features of the solution according to the invention are shown in plan view. Figure 2 illustrates all of the device elements.

Die senkrechte Anordnung des Grundkörpers 3 und der Zahnsegmente 4 ist erforderlich, da bei einer waagerechten Lage die oberhalb angeordneten Zahnsegmente 4 bereits während des Beschleunigungsvorgangs des Grundkörpers 3 auf diesem aufliegen würden, sich stärker erwärmten als die unterhalb angeordneten Zahnsegmente 4 und unterschiedlicher Materialabtrag die Folge wäre. Die Preßvorrichtung 1 bewegt sich nach Erreichen der erforderlichen Drehzahl des Grundkörpers 3 im gleichen Drehsinn wie der Grundkörper 3 und drückt dabei gleichzeitig die Zahnsegmente 4 an diesen an. Der Fixierung und genauen Ausrichtung der Zahnsegmente 4 dient der Gegenhalter 2, der starr angeordnet ist. Nachdem der Grundkörper 3 abgebremst und der anschließende Schweißvorgang abgeschlossen ist, wird die Preßvorrichtung 1 wieder in ihre Ausgangslage gebracht. Die Bohrung 5 dient der Aufnahme der Spannvorrichtung. Nach Fig. 2 dient als Auflage für die Zahnsegmente 4 ein Auflagering 7. Die Zahnsegmente 4 werden durch ein Magazin 6 zugeführt.The vertical arrangement of the base body 3 and the toothed segments 4 is necessary since, in a horizontal position, the toothed segments 4 arranged above would already rest on the base body 3 during the acceleration process, would heat up more than the toothed segments 4 arranged below and different material removal would result . After the required speed of the base body 3 has been reached, the pressing device 1 moves in the same direction of rotation as the base body 3 and at the same time presses the toothed segments 4 against it. The counter-holder 2 , which is arranged rigidly, serves to fix and precisely align the toothed segments 4 . After the base body 3 is braked and the subsequent welding process is completed, the pressing device 1 is brought back into its starting position. The bore 5 serves to accommodate the tensioning device. According to FIG. 2, a support ring 7 serves as a support for the tooth segments 4 . The tooth segments 4 are fed through a magazine 6 .

Claims (1)

Vorrichtung zum Reibschweißen von Zahnrädern, gekennzeichnet dadurch, daß um den Umfang eines sich drehenden Grundkörpers (3) in Form eines Zylinders Zahnsegmente (4) durch ein Magazin (6) seitlich zuführbar und mittels eines gegenüber dem Magazin (6) angebrachten Auflageringes (7) fixierbar sind und wobei sich auf dem Radius über den Zahnsegmenten jeweils ein oder mehrere Preßvorrichtungen (1) und Gegenhalter (2) befinden, wobei der Grundkörper (3) mit seiner Bohrung (5) auf einer an sich bekannten mittels Antrieb drehbaren und abbremsbaren Spindel befestigt ist.Device for friction welding of gear wheels, characterized in that tooth segments ( 4 ) can be fed laterally around the circumference of a rotating base body ( 3 ) in the form of a cylinder by means of a magazine ( 6 ) and by means of a support ring ( 7 ) mounted opposite the magazine ( 6 ). can be fixed and one or more pressing devices ( 1 ) and counterholders ( 2 ) are located on the radius above the toothed segments, the base body ( 3 ) with its bore ( 5 ) being fastened to a spindle which is known per se and can be braked by means of a drive is.
DE19904028876 1990-04-04 1990-09-12 Gearwheel tooth attachment system - has shaped teeth fed from magazine to cylindrical body to be welded into place Withdrawn DE4028876A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD33943690 1990-04-04

Publications (1)

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DE4028876A1 true DE4028876A1 (en) 1991-10-10

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019886A1 (en) * 1992-03-27 1993-10-14 United Technologies Corporation Balanced force workpiece location means
DE4409769A1 (en) * 1994-03-22 1995-09-28 Mtu Muenchen Gmbh Impeller wheels for turbines and mfg process for same
WO1998006531A1 (en) * 1996-08-16 1998-02-19 Meritor Heavy Vehicle Systems, Llc Linear friction welded brake shoe assembly
WO2000057077A1 (en) * 1999-03-18 2000-09-28 INA Wälzlager Schaeffler oHG Coupling element of a coupling unit for a gear box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019886A1 (en) * 1992-03-27 1993-10-14 United Technologies Corporation Balanced force workpiece location means
DE4409769A1 (en) * 1994-03-22 1995-09-28 Mtu Muenchen Gmbh Impeller wheels for turbines and mfg process for same
WO1998006531A1 (en) * 1996-08-16 1998-02-19 Meritor Heavy Vehicle Systems, Llc Linear friction welded brake shoe assembly
WO2000057077A1 (en) * 1999-03-18 2000-09-28 INA Wälzlager Schaeffler oHG Coupling element of a coupling unit for a gear box

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