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WO2002006539A1 - Procede et dispositif de durcissage de surfaces sur des composants - Google Patents

Procede et dispositif de durcissage de surfaces sur des composants Download PDF

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Publication number
WO2002006539A1
WO2002006539A1 PCT/EP2001/007436 EP0107436W WO0206539A1 WO 2002006539 A1 WO2002006539 A1 WO 2002006539A1 EP 0107436 W EP0107436 W EP 0107436W WO 0206539 A1 WO0206539 A1 WO 0206539A1
Authority
WO
WIPO (PCT)
Prior art keywords
inductor
hardened
distance
distance measuring
measuring sensor
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.)
Ceased
Application number
PCT/EP2001/007436
Other languages
German (de)
English (en)
Inventor
Waldemar Gezarzick
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.)
Elotherm GmbH
Original Assignee
Elotherm GmbH
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 Elotherm GmbH filed Critical Elotherm GmbH
Publication of WO2002006539A1 publication Critical patent/WO2002006539A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a device for hardening the surfaces delimiting a recess between two teeth of a gear or a rack with an inductor for heating the surface to be hardened, a quenching device for cooling the heated surface to be hardened and at least one actuating device for adjusting the positions of the inductor as a function of the signal from a distance measuring sensor which determines the respective distance of the heating conductor of the inductor from the surface to be hardened.
  • the invention relates to a method for hardening the surfaces delimiting a recess between two teeth of a gear or a rack, in which the surfaces to be hardened are inductively heated by means of an inductor and in which the heated surfaces to be hardened are subsequently quenched, at least during the infeed of the inductor to the surface to be hardened, the distance between the heating conductor of the inductor and the surface is detected and the feeding of the inductor is terminated if the detected distance corresponds to a desired distance.
  • Devices and methods of the type specified above are used in particular for hardening the flanks of teeth of a toothed wheel or a toothed rack.
  • the purpose of hardening is to give the tooth flanks the hardness necessary for high wear resistance.
  • the toughness of the gear material should be preserved so that the teeth can safely absorb the forces that are on them in practical use and over a long period of use.
  • the surfaces of a component to be hardened are usually hardened successively, surface for surface or section for section, if simultaneous hardening is not possible due to the size and complexity of the component shape.
  • the inductor is delivered to the surface to be hardened.
  • the surface to be hardened is heated inductively. Finally, the heated surface is quenched using a coolant.
  • a device and a method of the type mentioned are known from DD 235 275 AI.
  • the known device is intended for hardening surfaces of a component and for this purpose has an inductor for heating the surface to be hardened, a quenching device for cooling the heated surface to be hardened and at least one actuating device which is used to adjust the positions of the inductor is.
  • the actuating device adjusts the position of the inductor relative to the surface to be hardened in dependence on the signal of at least one distance measuring sensor which determines the respective distance of the heating conductor of the inductor from the surface to be hardened.
  • the object of the invention is, based on the above-described prior art, to provide a device and a method with which components with a complex geometry, which are also affected by changes in shape as a result of sectionally limited temperature changes, can be properly hardened.
  • this object is achieved in that a second distance measuring sensor is provided, that each of the distance measuring sensors is assigned to a different surface to be hardened, and the adjustment of the inductor as a function of both the signal of the first distance measuring sensor and the signal of the second Distance measuring sensor takes place.
  • the stated object is achieved in that the inductor is adjusted as a function of the signals of at least two distance measuring sensors which detect the distance of the inductor from two different surfaces to be hardened.
  • the position of the inductor is no longer based on the shape of the component before hardening, but it is similar to that of the DD 235 275 AI by an active measuring element, the actual position of the Detected heating conductor of the inductor relative to all the surface to be hardened, which are in the effective range of the heating conductor.
  • the inductor is positioned so that the distance of its heating conductor from the surfaces to be hardened corresponds to the optimal position for the hardening result.
  • a particularly compact and at the same time robust design of a device according to the invention is characterized in that the distance measuring sensor is carried by the inductor. With such an arrangement, the outlay on equipment for fastening and moving the distance measuring sensor is reduced to a minimum.
  • the invention is particularly suitable for those applications in which the inductor is guided along the surface to be hardened during processing, so that the latter Surface is continuously heated and quenched successively.
  • a particularly advantageous embodiment of the invention is characterized in this context in that the actual distance of the heating conductor of the inductor from the surface to be hardened is continuously recorded during the heating and that the distance in the event of a deviation of the actual distance from the tolerance range exceeding that The target distance is adjusted until the actual distance. taking into account the tolerance range corresponds to the target distance.
  • the inductor is not only brought into an optimal position in relation to the surface to be hardened for the start of the hardening process, but it is continuously checked whether the inductor maintains this optimal distance when moving along the surface to be hardened.
  • Another embodiment of the invention which is particularly suitable for hardening the flanks of teeth on gears or surfaces on comparable components, in which the inductor is inserted into a recess for heating the surface to be hardened, is characterized in that the distance measurement Penetration depth of the heating conductor of the inductor is detected and that the position of the inductor is set depending on the penetration depth detected in each case. In this way, even when inserting the inductor into a recess, it is ensured in a simple manner that an optimal distance to all surfaces of the recess which are critical with regard to hardening is set.
  • Figure 1 shows a detail of a device for hardening an internally toothed gear in a side view.
  • FIG. 2 shows an inductor used in the device according to FIG. 1 in a perspective view.
  • Internal toothing I provided, having a large diameter gear Z includes one not shown here
  • the holder 1 is arranged in the space delimited by the gearwheel Z and in a spatial manner by means of an adjusting device, also not shown
  • Teeth Zl, Z2, Z ... of the gearwheel Z are moved.
  • the actuating device can move the holder 1 in the radial direction R to the holder 1 to the
  • the holder 1 carries at its lower end an inductor 2 which is directed in the direction of the teeth Z1, Z2, Z ... of the gearwheel Z.
  • the holder 1 carries at its lower end a quench shower 3, the nozzles of which are directed in the direction of the teeth Z1, Z2, Z ... of the gearwheel Z.
  • At least one further cooling nozzle 4 is arranged above the inductor 2.
  • the inductor 2 comprises a carrier 5, which stands from the holder 1 in the radial direction R in the direction of the gearwheel Z and at the free end of which a heating conductor 6 is detachably fastened.
  • the shape of the heating conductor 6 is adapted to the essentially triangular cross section of the depressions V of the gearwheel Z present between two teeth Z1, Z2, the tip S of the heating conductor 6 facing the base surface G of the depression V.
  • the heating conductor 6 induces an electromagnetic field during operation, for example, both into the flank Fl of the tooth ZI and into the flank F2 of the tooth Z2 opposite this flank Fl.
  • the base G of the depression V is captured by the magnetic field.
  • the inductor 2 thus simultaneously heats the flanks F1, F2 assigned to the depression V of two teeth Zl, Z2 of the gearwheel Z adjacent to the respective depression, and the base surface G of the depression, so that after the subsequent cooling in these surface areas each a hardness zone Hl of sufficient depth is created.
  • a further carrier 7 is arranged on the heating conductor 6, to which two distance sensors 8, 9 are fastened.
  • One distance sensor 8 is assigned to the tooth flank F1 of a tooth ZI delimiting the respective recess V, while the other distance sensor 9 is positioned above the tip S of the heating conductor 6.
  • the distance sensor 8 detects the distance Af between the flank Fl and the heating conductor 6 while the distance sensor 9 determines the distance Ag between the base G and the tip S of the heating conductor 6.
  • another Sensor may be arranged on the side of the carrier 7 assigned to the flank F2 of the tooth Z2.
  • the flanks F1, F2, F ... of the teeth Z1, Z2, Z ... of the gearwheel Z are hardened tooth by tooth in succession, the inductor 2 with its heating conductor 6 being moved into a starting position in one of the depressions V and Starting from this position, the hardening is carried out.
  • the distance sensors 8, 9 deliver a signal corresponding to the respectively detected distance Af or Ag to a measuring device (not shown), which is part of the control and energy supply device.
  • the adjusting device adjusts the inductor 2 until the predetermined desired distances corresponding position of the heating conductor 6 is reached.
  • the actuating device then moves the inductor 2 and, along with it, the heating conductor 6 to which electrical energy is applied in the longitudinal direction L along the surfaces F1, F2 and G to be hardened.
  • the sections heated in each case are then immediately quenched by the cooling jets emitted by the quenching shower 3, so that the required hardness zone H1 is generated in a continuous process in the area of the areas F1, F2, G.
  • the cooling nozzle 4 simultaneously ensures that there is no excessive heating in the area of the head of the teeth Z1, Z2.
  • the adjusting device adjusts the inductor 2 until the target distances are reached again.
  • the hardness zone Hl has a uniform course and an optimal penetration depth over the length of the teeth Zl, Z2.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de durcissage des surfaces (F1, F2, G) délimitant une cavité (V) entre deux dents (Z1, Z2) d'une roue dentée (Z) ou d'une crémaillère. Ledit dispositif est composé d'un inducteur (2) destiné à chauffer la surface à durcir (F1, F2, G), d'un système de trempe (3) destiné à refroidir la surface à durcir (F1, F2, G) chauffée, et d'au moins un système de réglage destiné à modifier les positions de l'inducteur (2) en fonction du signal d'un capteur d'écart (8) relevant l'écart respectif (Af) entre le conducteur chauffant (6) de l'inducteur (2) et la surface à durcir (G). Lesdits procédé et dispositif permettent également de durcir correctement des composants à géométrie complexe, dont la forme à subi des modifications en raison de variations de température partiellement réduites. A cet effet, le dispositif selon l'invention comporte un deuxième capteur d'écart (9), chaque capteur d'écart (8, 9) est affecté à une surface à durcir (F1, F2, G) différente, et le déplacement de l'inducteur (2) est effectué en fonction du signal du premier capteur d'écart (8), et du signal du deuxième capteur d'écart (9).
PCT/EP2001/007436 2000-07-14 2001-06-29 Procede et dispositif de durcissage de surfaces sur des composants Ceased WO2002006539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10034357A DE10034357C1 (de) 2000-07-14 2000-07-14 Verfahren und Vorrichtung zum Härten von Flächen an Bauteilen
DE10034357.0 2000-07-14

Publications (1)

Publication Number Publication Date
WO2002006539A1 true WO2002006539A1 (fr) 2002-01-24

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PCT/EP2001/007436 Ceased WO2002006539A1 (fr) 2000-07-14 2001-06-29 Procede et dispositif de durcissage de surfaces sur des composants

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DE (1) DE10034357C1 (fr)
WO (1) WO2002006539A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2264192A1 (fr) * 2009-06-15 2010-12-22 Ema Indutec GmbH Machine de durcissement pour le durcissement inductif sous gaz protecteur
CN102352425A (zh) * 2011-10-11 2012-02-15 洛阳Lyc轴承有限公司 风电轴承齿圈的淬火方法
US8637454B2 (en) 2009-01-06 2014-01-28 Dyax Corp. Treatment of mucositis with kallikrein inhibitors
US8663629B2 (en) 1994-01-11 2014-03-04 Dyax Corp. Kallikrein-binding “kunitz domain” proteins and analogues thereof
US8716225B2 (en) 2004-09-27 2014-05-06 Dyax Corp. Kallikrein inhibitors and anti-thrombolytic agents and uses thereof
US8822653B2 (en) 2010-01-06 2014-09-02 Dyax Corp. Plasma kallikrein binding proteins
US9114144B2 (en) 2002-06-07 2015-08-25 Dyax Corp. Kallikrein-inhibitor therapies
US9266964B2 (en) 2011-01-06 2016-02-23 Dyax Corp. Method of treating hereditary angioedema using plasma kallikrein binding antibodies
US9480733B2 (en) 2002-06-07 2016-11-01 Dyax Corp. Prevention and reduction of blood loss
US11286307B2 (en) 2015-12-11 2022-03-29 Takeda Pharmaceutical Company Limited Plasma kallikrein inhibitors and uses thereof for treating hereditary angioedema attack

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2304123B1 (es) * 2008-03-19 2009-05-27 Sinfines Miralles, Sl Procedimiento de endurecimiento superficial para sinfines.
CH716959B1 (de) * 2019-12-17 2023-05-15 Guedel Ag Verfahren zum Randschichthärten einer Antriebskomponente mit Verzahnung.
DE102020213459A1 (de) 2020-10-26 2022-04-28 Volkswagen Aktiengesellschaft Ausrichthilfe sowie Anordnung der Ausrichthilfe in einer Werkzeugmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056869A (fr) * 1950-11-30 1954-03-03 Delapena & Son Ltd Procédé perfectionné de trempe d'articles présentant une denture et appareil pour la mise en oeuvre de ce procédé
DE973342C (de) * 1954-09-14 1960-01-28 Schoppe & Faeser Gmbh Verfahren und Vorrichtung zum induktiven Haerten von Verzahnungen, deren Zahnweite sich ueber die Zahnlaenge aendert
US3502312A (en) * 1967-01-23 1970-03-24 Nat Automatic Tool Co Gear hardening machine
US4589935A (en) * 1983-07-22 1986-05-20 Vickers Shipbuilding & Engineering Limited Method of induction hardening of gear teeth
JPS61106709A (ja) * 1984-10-29 1986-05-24 High Frequency Heattreat Co Ltd 焼入れにおける位置デ−タ検出方法および位置デ−タセンサ−ユニツト
JPH10219357A (ja) * 1997-02-05 1998-08-18 High Frequency Heattreat Co Ltd 歯車の誘導加熱焼入れ方法及び装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD235275A1 (de) * 1985-03-19 1986-04-30 Werkzeugmaschinenbau Fz Einrichtung zur steuerung von induktionswaermebehandlungsparametern

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056869A (fr) * 1950-11-30 1954-03-03 Delapena & Son Ltd Procédé perfectionné de trempe d'articles présentant une denture et appareil pour la mise en oeuvre de ce procédé
DE973342C (de) * 1954-09-14 1960-01-28 Schoppe & Faeser Gmbh Verfahren und Vorrichtung zum induktiven Haerten von Verzahnungen, deren Zahnweite sich ueber die Zahnlaenge aendert
US3502312A (en) * 1967-01-23 1970-03-24 Nat Automatic Tool Co Gear hardening machine
US4589935A (en) * 1983-07-22 1986-05-20 Vickers Shipbuilding & Engineering Limited Method of induction hardening of gear teeth
JPS61106709A (ja) * 1984-10-29 1986-05-24 High Frequency Heattreat Co Ltd 焼入れにおける位置デ−タ検出方法および位置デ−タセンサ−ユニツト
JPH10219357A (ja) * 1997-02-05 1998-08-18 High Frequency Heattreat Co Ltd 歯車の誘導加熱焼入れ方法及び装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 292 (C - 376) 3 October 1986 (1986-10-03) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13 30 November 1998 (1998-11-30) *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8663629B2 (en) 1994-01-11 2014-03-04 Dyax Corp. Kallikrein-binding “kunitz domain” proteins and analogues thereof
US9114144B2 (en) 2002-06-07 2015-08-25 Dyax Corp. Kallikrein-inhibitor therapies
US11344610B2 (en) 2002-06-07 2022-05-31 Takeda Pharmaceutical Company Limited Prevention and reduction of blood loss
US10245307B2 (en) 2002-06-07 2019-04-02 Dyax Corp. Prevention and reduction of blood loss
US9480733B2 (en) 2002-06-07 2016-11-01 Dyax Corp. Prevention and reduction of blood loss
US8716225B2 (en) 2004-09-27 2014-05-06 Dyax Corp. Kallikrein inhibitors and anti-thrombolytic agents and uses thereof
US9757437B2 (en) 2004-09-27 2017-09-12 Dyax Corp. Kallikrein inhibitors and anti-thrombolytic agents and uses thereof
US8637454B2 (en) 2009-01-06 2014-01-28 Dyax Corp. Treatment of mucositis with kallikrein inhibitors
EP2264192A1 (fr) * 2009-06-15 2010-12-22 Ema Indutec GmbH Machine de durcissement pour le durcissement inductif sous gaz protecteur
US8822653B2 (en) 2010-01-06 2014-09-02 Dyax Corp. Plasma kallikrein binding proteins
US10336832B2 (en) 2010-01-06 2019-07-02 Dyax Corp. Methods of inhibiting plasma kallikrein in edema patient
US11505620B2 (en) 2010-01-06 2022-11-22 Takeda Pharmaceutical Company Limited Methods of detecting plasma kallikrein
US12460016B2 (en) 2010-01-06 2025-11-04 Takeda Pharmaceutical Company Limited Plasma kallikrein binding proteins
US9266964B2 (en) 2011-01-06 2016-02-23 Dyax Corp. Method of treating hereditary angioedema using plasma kallikrein binding antibodies
US10370453B2 (en) 2011-01-06 2019-08-06 Dyax Corp. Plasma kallikrein binding proteins
US11401346B2 (en) 2011-01-06 2022-08-02 Takeda Pharmaceutical Company Limited Nucleic acids encoding plasma kallikrein binding proteins
CN102352425A (zh) * 2011-10-11 2012-02-15 洛阳Lyc轴承有限公司 风电轴承齿圈的淬火方法
US11286307B2 (en) 2015-12-11 2022-03-29 Takeda Pharmaceutical Company Limited Plasma kallikrein inhibitors and uses thereof for treating hereditary angioedema attack

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