CA2480183A1 - Induction hardening apparatus for a crankshaft - Google Patents

Induction hardening apparatus for a crankshaft Download PDF

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Publication number
CA2480183A1
CA2480183A1 CA002480183A CA2480183A CA2480183A1 CA 2480183 A1 CA2480183 A1 CA 2480183A1 CA 002480183 A CA002480183 A CA 002480183A CA 2480183 A CA2480183 A CA 2480183A CA 2480183 A1 CA2480183 A1 CA 2480183A1
Authority
CA
Canada
Prior art keywords
crankshaft
induction
workstation
coil
hardening apparatus
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.)
Granted
Application number
CA002480183A
Other languages
French (fr)
Other versions
CA2480183C (en
Inventor
John M. Storm
Max E. Stewart
Spencer L. Gibbs
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.)
Contour Hardening Inc
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
Priority claimed from US08/959,799 external-priority patent/US6018155A/en
Priority claimed from US09/148,478 external-priority patent/US6013904A/en
Application filed by Individual filed Critical Individual
Publication of CA2480183A1 publication Critical patent/CA2480183A1/en
Application granted granted Critical
Publication of CA2480183C publication Critical patent/CA2480183C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

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  • Heat Treatment Of Articles (AREA)

Abstract

An induction hardening apparatus (20) for inductively heating and quench hardening a crankshaft (21) includes an arrangement of two workstations (33, 36) similarly configured and a robotic device (37) indexing the crankshaft from a first workstation to a second workstation. The induction hardening apparatus is designed with a single induction coil (48) located at the first workstation for the sequential induction heating and quench hardening of the pins of the crankshaft. At the second workstation, a single induction coil (63) is used for the bearing surfaces of the crankshaft. One feature of the present invention is that the induction coils do not contact the surfaces of the crankshaft which are being inductively heated and quench hardened.
Crankshaft dimensions and geometry are programmed into servodrive systems (49, 51) which move the corresponding coil in X and Y directions accurately tracing the orbit or path of each pin and each bearing surface. Another feature of the present invention is the use of an offset 180 degree coil (310) which provides improved heating patterns in less time than traditional 90 degree coils.
CA002480183A 1997-10-29 1998-10-28 Induction hardening apparatus for a crankshaft Expired - Lifetime CA2480183C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/959,799 US6018155A (en) 1997-10-29 1997-10-29 Induction hardening apparatus for a crankshaft
US08/959,799 1997-10-29
US09/148,478 US6013904A (en) 1997-10-29 1998-09-08 Induction hardening apparatus for a crankshaft
US09/148,478 1998-09-08
CA002313470A CA2313470C (en) 1997-10-29 1998-10-28 Induction hardening apparatus for a crankshaft

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002313470A Division CA2313470C (en) 1997-10-29 1998-10-28 Induction hardening apparatus for a crankshaft

Publications (2)

Publication Number Publication Date
CA2480183A1 true CA2480183A1 (en) 1999-05-06
CA2480183C CA2480183C (en) 2006-05-16

Family

ID=34068567

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002480183A Expired - Lifetime CA2480183C (en) 1997-10-29 1998-10-28 Induction hardening apparatus for a crankshaft

Country Status (1)

Country Link
CA (1) CA2480183C (en)

Also Published As

Publication number Publication date
CA2480183C (en) 2006-05-16

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Effective date: 20181029