WO2017090796A1 - Appareil de traitement thermique haute fréquence de faux-arbres, avec une fonction d'inspection générale par essai par courant de foucault - Google Patents

Appareil de traitement thermique haute fréquence de faux-arbres, avec une fonction d'inspection générale par essai par courant de foucault Download PDF

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Publication number
WO2017090796A1
WO2017090796A1 PCT/KR2015/012810 KR2015012810W WO2017090796A1 WO 2017090796 A1 WO2017090796 A1 WO 2017090796A1 KR 2015012810 W KR2015012810 W KR 2015012810W WO 2017090796 A1 WO2017090796 A1 WO 2017090796A1
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WO
WIPO (PCT)
Prior art keywords
stub shaft
inspection
heat treatment
high frequency
unit
Prior art date
Application number
PCT/KR2015/012810
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English (en)
Korean (ko)
Inventor
박종규
Original Assignee
박종규
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Filing date
Publication date
Application filed by 박종규 filed Critical 박종규
Publication of WO2017090796A1 publication Critical patent/WO2017090796A1/fr

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    • 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
    • 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
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • 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
    • 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
    • C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • 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 present invention relates to a high frequency heat treatment apparatus for a stub shaft, and more particularly, an inspection unit for inspecting the high frequency heat treatment state of the stub shaft by an eddy current flaw detection method is installed on one side of the stub shaft, and the stub shaft according to the result of the inspection on one side of the inspection unit.
  • the present invention relates to a high-frequency heat treatment apparatus for stub shafts having an eddy current flaw detection system capable of inspecting the entire stub shaft and preventing the mixing of defective products.
  • a stub shaft is one of the components constituting the drive shaft that transmits the rotational force of the vehicle engine to the axle.
  • the stub shaft is formed of a disk-shaped flange portion and a shaft portion protruding from the center of the flange portion, and is a component requiring durability of the shaft portion as the rotational force is transmitted by the shaft portion on which the spline is formed.
  • High frequency heat treatment is required to increase the surface hardness of the shaft portion of the stub shaft to satisfy the durability requirements, and the conventional high frequency heat treatment apparatus of the stub shaft has a structure in which high frequency heat treatment and taking out each one separately while continuously feeding and feeding the stub shaft. to be.
  • the conventional high frequency heat treatment apparatus has a problem in that good quality and poor quality are mixed as it is discharged to the discharge conveyor without inspecting whether the high frequency heat treatment is properly performed after the high frequency heat treatment and taking out the stub shaft.
  • the present invention has been invented to solve the above problems, and when the high frequency heat treatment stub shaft is taken out and discharged, the high frequency heat treatment quality is inspected by the eddy current flaw detection method, which is a non-destructive test, to separate and discharge the defective product into the good and defective parts. It is an object of the present invention to provide a high frequency heat treatment apparatus for a stub shaft that has an eddy current flaw detection system capable of performing a full inspection quickly and easily.
  • the high frequency heat treatment apparatus of the stub shaft having a full inspection function of the eddy current flaw detection method according to the present invention for achieving the above object is made of a supply conveyor for supplying the stub shaft in a vertical standing state;
  • An input unit for inputting the stub shaft supplied from the supply unit comprising an input block installed at an upper side of the supply conveyor to move vertically and horizontally and an input chuck installed at an end of the movable block and exerting an attraction force by pneumatic pressure;
  • a worktable installed on one side of the supply conveyor, a transport table installed parallel to the rear side of the work bench and horizontally moving from side to side and back and forth, and a plurality of transport jigs installed on one side of the transport table at regular intervals and holding the stub shaft.
  • Conveying portion for conveying the stub shaft injected into the upper portion of the work table by the input portion at a predetermined interval;
  • the first induction coil and the second induction coil which are installed at a predetermined distance on the upper side of the work table and are arranged at intervals corresponding to the interval of the transfer jig, and the inner side of the first induction coil and the second induction coil, respectively.
  • the first mill piece and the stub shaft disposed in a position corresponding to the two induction coil and consisting of a first mill piece and a second mill piece to protrude upwardly through the work table and rotated along the work table by the conveying unit.
  • a high frequency heat treatment unit which performs high frequency quenching and tempering in order while raising and lowering the second compact piece;
  • a movable block installed on one side of the work bench and vertically and horizontally moved; and a blowout chuck installed at an end of the movable block to exert an attraction force by pneumatic pressure. part;
  • An inspection unit provided below the extraction unit and inspecting a high frequency heat treatment defect by flowing an eddy current through the stub shaft taken out by the extraction unit;
  • a separating part installed at an upper side of the inspection part and separating and discharging the stub shaft into good and defective goods according to the inspection result of the inspection part.
  • the inspection unit is provided with an inspection table, and an inspection hole through which the stub shaft is inserted in the center of the inspection table and inserted into the center thereof, and an eddy current coil installed with an eddy current supplied inside the inspection hole to transmit the eddy current to the stub shaft.
  • a test probe to be installed on the other side of the test stand and a test hole through which a stub shaft of a good product is inserted in the center of which there is no high-frequency heat-treatment defect, and an eddy current coil in which an eddy current is supplied inside the test hole is installed.
  • a discriminator for discriminating high frequency heat treatment defects of the stub shaft by comparing the amplitude of the eddy current received from the test probe and the standard probe, respectively.
  • the separation unit is installed on the upper side of the test table and horizontal and vertical movement of the movable block, and installed on the end of the movable block to exert a suction force by the pneumatic pressure to suck the stub shaft inserted into the test hole of the test probe to the inspection unit According to the inspection result of the product discharge conveyor or defective product characterized in that consisting of a separation chuck to discharge to the discharge conveyor.
  • the present invention by the above configuration can be expected the following effects.
  • the high frequency heat treatment of the stub shaft in an automated manner can increase the productivity of the stub shaft. And after the high frequency heat treatment, the whole inspection of the stub shaft is performed in an automated manner, and by separating the good and bad according to the result of the total inspection, it is possible to suppress the incorporation of the defective product and improve the heat treatment quality.
  • FIG. 1 is an overall configuration diagram showing a high frequency heat treatment apparatus of a stub shaft having a full inspection function of the eddy current flaw detection method according to a preferred embodiment of the present invention.
  • the high frequency heat treatment apparatus of the stub shaft having the full inspection function of the eddy current flaw detection method according to the present invention is a high frequency quenching and tempering of the stub shaft (stub shaft) which is one of the key components constituting the drive shaft for transmitting the rotational force of the vehicle engine to the axle It is an apparatus for performing a high frequency heat treatment including an automated system.
  • the high frequency heat treatment apparatus of the stub shaft having a full inspection function of the eddy current inspection method according to the present invention after the high frequency heat treatment and taking out the stub shaft and inspecting whether the high frequency heat treatment is performed properly, separated and discharged as good or bad according to the test result
  • the incorporation of defective products can be suppressed as much as possible, and the whole inspection for filtering out defective products can be easily performed.
  • This feature is characterized by the structure provided with an inspection part for inspecting the high frequency heat treatment quality of the stub shaft that has been subjected to the high frequency heat treatment by the vortex flaw detection method on one side of the ejection part, and a separation part for separating and discharging the stub shaft into good and defective parts according to the inspection result of the inspection part. Is achieved.
  • the high frequency heat treatment apparatus 100 of the stub shaft having the full inspection function of the eddy current inspection method according to the preferred embodiment of the present invention is provided with a supply part 10, an input part 20, and a transfer part 30. It is composed of a high frequency heat treatment unit 40, the extraction unit 50, the inspection unit 60 and the separation unit 70.
  • the supply unit 10 is a device for feeding a plurality of stub shafts that are placed at regular intervals in a standing state at a predetermined distance to be transferred at a predetermined time interval.
  • the supply unit 10 may be configured as a supply conveyor 11 as shown in FIG.
  • the supply conveyor 11 transfers and supplies a plurality of stub shafts which are placed in an upright position by an operator while moving in an endless track.
  • the upper portion of the supply conveyor 11 is provided with a position guide (not shown) indicating the set position at every predetermined interval so that the operator can set up the stub shaft standing at a predetermined interval.
  • the feeding unit 20 is configured to feed the stub shaft supplied from the supply unit 10 to the transfer unit 30 to be described later.
  • the input unit 20 may be composed of a movable block 21 and the input chuck 22 as shown in FIG.
  • the movable block 21 is installed on one side of the supply conveyor 11 and configured to move horizontally and vertically by a driving means (not shown).
  • the input chuck 22 is installed at the end of the movable block 21 to suck the stub shaft by the pneumatic pressure supplied from the outside.
  • the input unit 20 is the movable block 21 is moved horizontally and vertically, and the input chuck 22 is standing up one by one to the stub shaft to be supplied at regular intervals along the supply conveyor 11 by the suction operation It is adsorbed in a state to be introduced into the transfer unit 30 to be described later.
  • the transfer unit 30 is for transferring a stub shaft inserted by the input unit 20 at a predetermined time interval. That is, the transfer unit 30 is to transfer the high frequency heat treatment including high frequency quenching and high frequency tempering to the stub shaft in order.
  • the transfer unit 30 may be composed of a work table 31, the transfer table 32 and the transfer jig 33 as shown in FIG.
  • the work table 31 is installed on one side of the supply conveyor 10 is to be placed in the upper stub shaft is introduced by the input unit 20.
  • the transfer table 32 is installed parallel to the rear side of the work table 31 and configured to horizontally move left and right and back and forth with respect to the work table 31.
  • the transfer jig 33 is provided with a plurality of dogs on one side of the transfer table 32 at regular intervals to hold the stub shaft according to the operation of the cylinder (not shown).
  • the transfer part 30 is in a state in which the transfer table 32 stands up on one side of the work table 31 in the process of horizontally moving back and forth and left and right along the work table 31 and the transfer jig 33 grips the stub shaft.
  • the stub shaft to be placed is transported to move by a certain distance toward the other side of the work table 31 every predetermined time.
  • the high frequency heat treatment unit 40 is configured to heat-treat the stub shaft transferred by the transfer unit 30. That is, the high frequency heat treatment unit 40 performs high frequency tempering after high frequency quenching of the stub shaft which is sequentially transferred.
  • the high frequency heat treatment unit 40 includes a first induction coil 41 and a second induction coil 42, a first cooling nozzle (not shown) and a second cooling nozzle (not shown), as shown in FIG. It may be composed of a high frequency generator 43, the first compact piece 44 and the second compact piece 45.
  • the first induction coil 41 and the second induction coil 42 are installed at a predetermined distance on the upper side of the worktable 31, respectively, and are disposed at intervals corresponding to the installation intervals of the transfer jig 33, respectively. High frequency heat treatment and high frequency tempering are performed on the stub shaft which is conveyed to the position.
  • the high frequency generator 43 is electrically connected to the first induction coil 41 and the second induction coil 42 to generate a high frequency necessary for high frequency heat treatment and tempering, thereby inducing the first induction coil 41 and the second induction coil. It is applied to (42).
  • the first cooling nozzle and the second cooling nozzle are respectively installed inside the first induction coil 41 and the second induction coil 42 to spray cooling water toward the sub shaft which is subjected to high frequency heat treatment and high frequency tempering. It is to let.
  • the first sealing piece 44 and the second sealing piece 45 are installed on the lower side of the work table 31, respectively, and are disposed to correspond to the installation positions of the first induction coil 41 and the second induction coil 42, respectively.
  • One motor 44a, 45a is connected to the rotational shaft of the second motors 44b, 45b provided on the guide members 44d, 45d to move up and down along the supporting members 44c, 45c. It is configured to be able to exercise.
  • first sealing piece 44 and the second sealing piece 45 may be in positions corresponding to the first guide coil 41 and the second guide coil 42 in the process of the stub shaft being transferred by the transfer part 30.
  • the stub shaft is pushed upward to be inserted into the first induction coil 41 and the second induction coil 42 to rotate to enable high frequency heat treatment and tempering.
  • the take-out unit 50 is to take out the stub shaft after the high frequency heat treatment through the high frequency heat treatment unit 40 in the process of being transferred along the work table 31 by the transfer unit 30 from the work table 31.
  • the takeout unit 50 may be composed of a movable block 51 and a takeout chuck 52 as shown in FIG.
  • the movable block 21 is installed on one side of the worktable 31 and configured to move horizontally and vertically by a driving means (not shown).
  • the extraction chuck 52 is installed at the end of the movable block 51 to suck the stub shaft by the pneumatic pressure supplied from the outside.
  • the take-out part 50 is in a state in which the movable block 51 moves horizontally and vertically, and the take-out chuck 52 stands up one by one in order to complete the high frequency heat treatment on the work table 31 by the suction operation. Adsorption is carried out to the inspection part 60 mentioned later.
  • the inspection unit 60 is configured to inspect the high frequency heat treatment state of the stub shaft taken out by the extraction unit 50.
  • the inspection unit 60 may be composed of a test bench 61, a test probe 62, a standard probe 63 and a discriminator 64 as shown in FIG.
  • the inspection table 61 is installed below the take-out jig 62 and has a flat plate shape.
  • the test probe 62 has an eddy current coil installed at one side of the test stand 61 and formed with a test hole (not shown) through which a stub shaft taken out by the takeout unit 50 is inserted in the center thereof, and an eddy current is supplied inside. (Not shown) is installed.
  • the standard probe 63 has an eddy current coil (not shown) installed in the other side of the inspection table 61 and having an inspection hole (not shown) through which a stub shaft of good quality is inserted into the center without a high frequency heat treatment defect in the center thereof, and an eddy current supplied thereto. Is installed.
  • the discriminator 64 is electrically connected to the test probe 62 and the standard probe 63, and compares the amplitudes of the eddy currents received from the test probe 62 and the standard probe 63, respectively. The high frequency heat treatment failure of the stub shaft taken out by this is discriminated.
  • the inspection unit 60 transmits eddy currents to the stub shaft to be inspected and the stub shaft to be the inspection standard of the test probe 62 and the standard probe 63, respectively, and then receives them from the discriminator 64. By comparing the amplitudes of the eddy currents with each other, it is determined whether the high frequency heat treatment of the stub shaft to be audited is performed properly.
  • the stub shaft to be inspected is determined as good or defective based on the stub shaft as the inspection standard, it is received from the stub shaft to be inspected based on the amplitude magnitude of the eddy current received from the stub shaft as the inspection standard. If the amplitude magnitude of the eddy current is within the preset allowable range, it is judged as good quality, otherwise it is determined as defective product.
  • the separation unit 70 is configured to separate and discharge the stub shaft inspected by the inspection unit 60 as good or bad according to the inspection result.
  • the separation unit 70 may be composed of a movable block 71 and a separation chuck 72 as shown in FIG.
  • the movable block 71 is installed on the upper side of the inspection table 61 and configured to be capable of horizontal and vertical movement by a driving means (not shown).
  • the separation chuck 72 is installed at the end of the movable block 71 and sucks the stub shaft by pneumatic pressure supplied from the outside.
  • the separation unit 70 is the stub shaft which is determined as good quality by moving the movable block 71 horizontally and vertically and the separation chuck 72 performs the suction operation is discharged to the good quality discharge conveyor 73 and determined as defective The stub shaft is discharged to the defective product discharge conveyor (84).
  • the present invention relates to a high frequency heat treatment apparatus for a stub shaft, and more particularly, an inspection unit for inspecting the high frequency heat treatment state of the stub shaft by an eddy current flaw detection method is installed on one side of the stub shaft, and the stub shaft according to the result of the inspection on one side of the inspection unit. It is available for the high frequency heat treatment device of the stub shaft which is equipped with the eddy current flaw detection system which can inspect the whole of the stub shaft and prevent the mixing of the defective product.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
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Abstract

La présente invention concerne un appareil de traitement thermique haute fréquence de faux-arbres et, plus particulièrement, un appareil de traitement thermique haute fréquence de faux-arbres présentant une fonction d'inspection générale par essai par courant de Foucault, comprenant, installée sur un côté d'une unité d'extraction, une unité d'inspection destinée à inspecter l'état de traitement thermique haute fréquence des faux-arbres dans un mode d'essai par courant de Foucault, et comprenant en outre, montée sur un côté de l'unité d'inspection, une unité de classement pour décharger les faux-arbres en distinguant ceux-ci en produits de bonne qualité et défectueux selon le résultat de l'inspection, ce qui permet d'effectuer l'inspection générale des faux-arbres et d'éviter l'inclusion des produits défectueux.
PCT/KR2015/012810 2015-11-26 2015-11-27 Appareil de traitement thermique haute fréquence de faux-arbres, avec une fonction d'inspection générale par essai par courant de foucault WO2017090796A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0166349 2015-11-26
KR1020150166349A KR101727726B1 (ko) 2015-11-26 2015-11-26 와전류 탐상 방식의 전수 검사 기능을 겸비한 스터브 샤프트의 고주파 열처리 장치

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WO2017090796A1 true WO2017090796A1 (fr) 2017-06-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021057234A (ja) * 2019-09-30 2021-04-08 パナソニックＩｐマネジメント株式会社 端子付き密閉型電池の製造方法および端子付き密閉型電池
CN113265518A (zh) * 2021-06-17 2021-08-17 河南江扬机电设备安装有限公司 一种用于金属材料的城建机械零部件的安全电磁处理设备

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KR101806431B1 (ko) 2016-09-06 2017-12-07 동명대학교산학협력단 아웃풋 플랜지의 최적 경화를 위한 자동 고주파 열처리 방법
KR101805806B1 (ko) 2016-09-06 2017-12-07 동명대학교산학협력단 아웃풋 플랜지의 최적 경화를 위한 자동 고주파 열처리 장치
KR102322901B1 (ko) * 2019-09-04 2021-11-08 임기현 열처리 자동화 시스템 및 그 방법
KR102323895B1 (ko) * 2019-10-10 2021-11-09 (주)대성종합열처리 다단계로 구성된 연속 고주파 열처리 자동화 장치
KR102439747B1 (ko) * 2021-02-23 2022-09-02 (주)대성종합열처리 전기자동차용 로터 샤프트 자동 고주파 열처리 시스템

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KR101455320B1 (ko) * 2014-06-04 2014-10-29 (주)신호테크 열처리된 금속 대상체의 사전 품질확인장치
KR20150006208A (ko) * 2013-07-08 2015-01-16 박종규 샤프트 드라이브의 표면 경화를 위한 고주파 열처리 장치

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JP2005008977A (ja) * 2003-06-23 2005-01-13 Denki Kogyo Co Ltd クランクシャフトの高周波誘導加熱装置
JP2007262450A (ja) * 2006-03-27 2007-10-11 Ntn Corp 高周波熱処理設備における品質保証システム
JP2008267786A (ja) * 2007-03-29 2008-11-06 Ntn Corp 自動車用シャフト部品等の高周波熱処理設備の監視システム
KR20150006208A (ko) * 2013-07-08 2015-01-16 박종규 샤프트 드라이브의 표면 경화를 위한 고주파 열처리 장치
KR101455320B1 (ko) * 2014-06-04 2014-10-29 (주)신호테크 열처리된 금속 대상체의 사전 품질확인장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021057234A (ja) * 2019-09-30 2021-04-08 パナソニックＩｐマネジメント株式会社 端子付き密閉型電池の製造方法および端子付き密閉型電池
CN113265518A (zh) * 2021-06-17 2021-08-17 河南江扬机电设备安装有限公司 一种用于金属材料的城建机械零部件的安全电磁处理设备

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