JP2013095950A - Hardening apparatus for shaft-shaped workpiece - Google Patents

Hardening apparatus for shaft-shaped workpiece Download PDF

Info

Publication number
JP2013095950A
JP2013095950A JP2011238287A JP2011238287A JP2013095950A JP 2013095950 A JP2013095950 A JP 2013095950A JP 2011238287 A JP2011238287 A JP 2011238287A JP 2011238287 A JP2011238287 A JP 2011238287A JP 2013095950 A JP2013095950 A JP 2013095950A
Authority
JP
Japan
Prior art keywords
shaft
shaped workpiece
quenching
cooling
heating
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
JP2011238287A
Other languages
Japanese (ja)
Other versions
JP5813461B2 (en
Inventor
Tsutomu Miyazaki
力 宮崎
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.)
Miyaden Co Ltd
Original Assignee
Miyaden Co Ltd
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 Miyaden Co Ltd filed Critical Miyaden Co Ltd
Priority to JP2011238287A priority Critical patent/JP5813461B2/en
Publication of JP2013095950A publication Critical patent/JP2013095950A/en
Application granted granted Critical
Publication of JP5813461B2 publication Critical patent/JP5813461B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Heat Treatment Of Articles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a hardening apparatus for a shaft-shaped workpiece, which is capable of enlarging an area where a cooling jacket disposed so as to face toward a heating surface of the shaft-shaped workpiece is opposed to the shaft-shaped workpiece and extensively cooling the heating surface by a cooling medium, whereby various kinds of hardening patterns can be easily obtained.SOLUTION: The hardening apparatus for a shaft-shaped workpiece includes a power source device capable of heating a predetermined surface of the shaft-shaped workpiece by energization heating or induction heating, and the cooling jacket capable of cooling the heating surface by injecting the cooling medium on the heating surface. The cooling jacket is provided with a body in which a flow path and injection holes for the cooling medium are formed, and a hardening pattern adjusting means connected to the body consecutively whose upper end is located higher than the center of the shaft of the shaft-shaped workpiece by a predetermined dimension, and which can guide the cooling medium upward in a circumferential direction of the outer circumferential surface of the shaft-shaped workpiece. The hardening pattern adjusting means has a pair of plates provided on both ends of the body in a coupled manner, and a guide surface of the plates is formed by at least one of vertical surfaces, inclined surfaces, and curved surfaces which are disposed oppositely with a predetermined space therebetween on the outer circumferential surface of the shaft-shaped workpiece.

Description

本発明は、歯面と背面を有するラックバー等の軸状ワークの所定面を例えば通電加熱により焼入が可能な軸状ワークの焼入装置に関する。   The present invention relates to a quenching apparatus for a shaft-shaped workpiece capable of quenching a predetermined surface of a shaft-shaped workpiece such as a rack bar having a tooth surface and a back surface by, for example, energization heating.

従来、この種の焼入装置としては、例えば特許文献１に開示されている。この焼入装置は、ラックバーの長手方向に沿って所定間隔で配置した第１接触電極及び第２接触電極と、通電加熱したラックバーの歯面や背面を急速冷却する冷却ジャケットと、ラックバーを上方から押圧する油圧シリンダ等を備えている。そして、ラックバーの歯面を焼入れする場合には、歯面側に両接触電極を接触させて高周波電流を直接通電で加熱して急速冷却し、また、ラックバーの背面を焼入れする場合には、ラックバーの上下位置を逆に設定して背面側に両接触電極を接触させて高周波電流を直接通電で加熱して急速冷却することによって行っている。   Conventionally, as this kind of hardening apparatus, it is disclosed by patent document 1, for example. The quenching apparatus includes a first contact electrode and a second contact electrode arranged at predetermined intervals along the longitudinal direction of the rack bar, a cooling jacket for rapidly cooling the tooth surfaces and the back surface of the energized and heated rack bar, and the rack bar. A hydraulic cylinder or the like that presses the cylinder from above is provided. And when quenching the tooth surface of the rack bar, both contact electrodes are brought into contact with the tooth surface side, and the high frequency current is heated by direct energization to rapidly cool, and when the back surface of the rack bar is quenched. This is done by setting the rack bar upside down, bringing both contact electrodes into contact with the back side, and heating the high frequency current directly by energization for rapid cooling.

特開平１０−１８３２３４号公報Japanese Patent Laid-Open No. 10-183234

しかしながら、このような焼入装置にあっては、軸状ワークとしてのラックバーの背面を通電加熱した後に、加熱面（背面）を急速冷却するための冷却ジャケットの冷却水の噴射面が、ラックバーとの対向面に対応して略半円弧形状に形成されると共に、その上面の高さがラックバーの略軸中心位置に設定されている。そのため、冷却ジャケットから噴射される冷却水がラックバーの軸中心位置より上方をカバーできず、背面の焼入範囲が狭く限定され歯面側に向けて延ばした状態で焼入することが困難で、ラックバーの背面に所望パターンの高精度な焼入品質を得ることが難しい。   However, in such a quenching apparatus, after the back surface of the rack bar as the shaft-shaped workpiece is energized and heated, the cooling water injection surface of the cooling jacket for rapidly cooling the heating surface (back surface) It is formed in a substantially semicircular arc shape corresponding to the surface facing the bar, and the height of the upper surface is set at a substantially axial center position of the rack bar. For this reason, the cooling water sprayed from the cooling jacket cannot cover the position above the axial center position of the rack bar, and the quenching range on the back surface is limited to be narrow and difficult to quench in a state of extending toward the tooth surface side. It is difficult to obtain a highly accurate quenching quality of a desired pattern on the back of the rack bar.

本発明は、このような事情に鑑みてなされたもので、その目的は、軸状ワークの加熱面に対向した配置される冷却ジャケットの軸状ワークとの対向面積を拡大できて、加熱面を冷却媒体で広範囲に冷却できる等、各種焼入パターンを容易に得ることが可能な軸状ワークの焼入装置を提供することにある。   The present invention has been made in view of such circumstances, and the object thereof is to increase the facing area of the cooling jacket disposed opposite the heating surface of the shaft-shaped workpiece with the heating surface. An object of the present invention is to provide a quenching apparatus for a shaft-like workpiece capable of easily obtaining various quenching patterns such as being capable of being cooled in a wide range with a cooling medium.

かかる目的を達成すべく、本発明のうち請求項１に記載の発明は、所定周波数の電流の通電加熱もしくは誘導加熱により軸状ワークの所定面を加熱可能な電源装置と、前記軸状ワークの加熱面に冷却媒体を噴射して冷却可能な冷却ジャケットと、を備えた軸状ワークの焼入装置であって、前記冷却ジャケットは、内部に冷却媒体の流路が形成されると共に該流路に連通し軸状ワークの加熱面と対向する面に噴射孔が形成された本体と、該本体に連設されその上端が前記軸状ワークの軸中心位置より所定寸法上方に位置して、前記噴射孔から噴射された冷却媒体を軸状ワークの外周面の円周方向上方に案内可能な焼入パターン調整手段と、を備えることを特徴とする。   In order to achieve such an object, the invention according to claim 1 of the present invention includes a power supply device capable of heating a predetermined surface of a shaft-shaped workpiece by energization heating or induction heating of a current having a predetermined frequency, and the shaft-shaped workpiece. And a cooling jacket capable of cooling by injecting a cooling medium onto a heating surface, wherein the cooling jacket has a cooling medium flow path formed therein and the flow path. A main body in which an injection hole is formed in a surface facing the heating surface of the shaft-shaped workpiece, and an upper end thereof connected to the main body is positioned a predetermined dimension above the axial center position of the shaft-shaped workpiece, And a quenching pattern adjusting means capable of guiding the cooling medium injected from the injection hole upward in the circumferential direction of the outer peripheral surface of the shaft-like workpiece.

また、請求項２に記載の発明は、前記焼入パターン調整手段が、前記本体の両端部上に連設された一対の板体を有し、該板体の案内面が前記軸状ワークの外周面に所定の隙間を有して対向配置された垂直面、傾斜面、曲面の少なくとも一つで形成されていることを特徴とする。また、請求項３に記載の発明は、前記焼入パターン調整手段が、前記本体に、軸状ワークの外周面に対して円周方向の位置関係が調整可能に連設されていることを特徴とする。さらに、請求項４に記載の発明は、前記軸状ワークがラックバーで前記加熱面が該ラックバーの背面であることを特徴とする。   Further, in the invention according to claim 2, the quenching pattern adjusting means has a pair of plate bodies continuously provided on both end portions of the main body, and the guide surfaces of the plate bodies are the shaft-like workpieces. The outer peripheral surface is formed of at least one of a vertical surface, an inclined surface, and a curved surface arranged to face each other with a predetermined gap. The invention according to claim 3 is characterized in that the quenching pattern adjusting means is connected to the main body so that the positional relationship in the circumferential direction can be adjusted with respect to the outer peripheral surface of the shaft-like workpiece. And Furthermore, the invention described in claim 4 is characterized in that the shaft-like workpiece is a rack bar and the heating surface is a back surface of the rack bar.

本発明の請求項１に記載の発明によれば、軸状ワークの加熱面に冷却媒体を噴射して冷却可能な冷却ジャケットが、冷却媒体の流路と噴射孔が形成された本体と、該本体の上部に連設されその上端が軸状ワークの軸中心位置より所定寸法上方に位置して冷却媒体を軸状ワークの外周面の円周方向上方に案内可能な焼入パターン調整手段とを備えるため、冷却ジャケットの軸状ワークとの対向面積を拡大して、軸状ワークの冷却範囲を円周方向に広げることができる等、軸状ワークの所定面に所望の焼入パターンを容易に得ることができる。   According to the first aspect of the present invention, the cooling jacket capable of cooling by injecting the cooling medium onto the heating surface of the shaft-shaped workpiece includes the main body in which the cooling medium flow path and the injection holes are formed, and the cooling jacket. A quenching pattern adjusting means which is connected to the upper part of the main body and whose upper end is positioned above a center position of the shaft-like workpiece by a predetermined dimension and which can guide the cooling medium in the circumferential direction above the outer circumferential surface of the shaft-like workpiece; Equipped with a cooling jacket, the area facing the shaft-shaped workpiece can be enlarged, and the cooling range of the shaft-shaped workpiece can be expanded in the circumferential direction. Can be obtained.

また、請求項２に記載の発明によれば、請求項１に記載の発明の効果に加え、焼入パターン調整手段が一対の板体を有し、この板体の案内面が垂直面、傾斜面、曲面の少なくとも一つで形成されているため、本体の噴射孔から噴射される冷却媒体を板体の案内面で軸状ワークの円周方向にスムーズに案内して、加熱面を良好に冷却することができる。   Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the quenching pattern adjusting means has a pair of plates, and the guide surface of the plates is a vertical surface, an inclined surface. Since it is formed of at least one of a surface and a curved surface, the cooling medium injected from the injection hole of the main body is smoothly guided in the circumferential direction of the axial workpiece by the guide surface of the plate body, and the heating surface is improved. Can be cooled.

また、請求項３に記載の発明によれば、請求項１または２に記載の発明の効果に加え、焼入パターン調整手段が、本体に軸状ワークの外周面に対して円周方向の位置関係が調整可能に連設されているため、冷却媒体による冷却範囲を焼入パターン調整手段の位置調整で所望に設定できて、各種焼入パターンを簡単かつ確実に得ることができる。   According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the quenching pattern adjusting means is positioned in the circumferential direction with respect to the outer peripheral surface of the shaft-like workpiece on the main body. Since the relationship is continuously arranged so as to be adjustable, the cooling range by the cooling medium can be set as desired by adjusting the position of the quenching pattern adjusting means, and various quenching patterns can be obtained easily and reliably.

さらに、請求項４に記載の発明によれば、請求項１ないし３に記載の発明の効果に加え、軸状ワークがラックバーで加熱面が該ラックバーの背面であるため、ラックバーの背面の焼入範囲を歯面側まで広げることができて、背面に最適な焼入層が形成されたラックバーを容易に得ることができる。   Furthermore, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, since the shaft-like workpiece is the rack bar and the heating surface is the back of the rack bar, the back of the rack bar Thus, a rack bar having an optimal hardened layer on the back surface can be easily obtained.

本発明に係わる軸状ワークの焼入装置の斜視図The perspective view of the hardening apparatus of the shaft-shaped workpiece | work concerning this invention. 同その焼入治具がセットされる治具セット台の斜視図The perspective view of the jig set stand where the hardening jig is set 同その平面図The plan view 同その正面図The front view 同軸状ワークがセットされる焼入治具の縦断面図Longitudinal section of quenching jig on which coaxial workpiece is set 同その平面図The plan view 同図５のＡ部の拡大図Enlarged view of part A in Fig. 5 同焼入治具の冷却ジャケットの縦断面図Longitudinal section of the cooling jacket of the quenching jig 同その側面図The side view 同焼入状態を示すラックバーの断面図Cross-sectional view of the rack bar showing the quenching condition 同冷却ジャケットの変形例を示す縦断面図Longitudinal sectional view showing a modification of the cooling jacket 同冷却ジャケットの他の変形例を示す縦断面図Longitudinal sectional view showing another modification of the cooling jacket

以下、本発明を実施するための最良の形態を図面に基づいて詳細に説明する。
図１〜図１０は、本発明に係わる軸状ワークの焼入装置の一実施形態を示している。焼入装置１は、図１に示すように、コラム３を有し、このコラム３の略中央前部には、焼入治具２が着脱可能にセットされる治具セット台４が配置されている。 The best mode for carrying out the present invention will be described below in detail with reference to the drawings.
1 to 10 show an embodiment of a shaft workpiece hardening apparatus according to the present invention. As shown in FIG. 1, the quenching apparatus 1 has a column 3, and a jig set base 4 on which a quenching jig 2 is detachably set is disposed at a substantially central front portion of the column 3. ing.

前記焼入治具２の上方には、焼入治具２にセットされた軸状ワークとしてのラックバーＷの歯面Ｗａと背面Ｗｂを反転させたり、あるいはラックバーＷを後述する支持部材１８ａ、１８ｂにセットしたり取り外す等の所定の動作を行うワーク制御装置５が配置されている。また、前記コラム３の右側には、操作盤６ａを有する制御装置６が配置されると共に、コラム３の所定位置には、複数の所定周波数の電流を出力可能な電源装置７と、後述する冷却ジャケット１９に冷却媒体としての冷却水を供給可能な冷却水供給装置８等が配置されている。   Above the quenching jig 2, the tooth surface Wa and the back surface Wb of the rack bar W as an axial work set on the quenching jig 2 are reversed, or the rack bar W is supported by a support member 18a described later. , 18b, and a workpiece control device 5 for performing a predetermined operation such as setting or removing. A control device 6 having an operation panel 6a is disposed on the right side of the column 3, and a power supply device 7 capable of outputting a plurality of currents having a predetermined frequency is provided at a predetermined position of the column 3, and a cooling described later. A cooling water supply device 8 that can supply cooling water as a cooling medium to the jacket 19 is disposed.

前記治具セット台４は、図２〜図４に示すように、略直方体形状の架台１０を有し、この架台１０の上面後方側に焼入治具２が着脱可能に配置されている。また、架台１０の上面の右側には、例えばラックバーＷの上下方向の向きを検出可能なセンサ１１ａを有するラックバー判別装置１１が配置されると共に、架台１０上面の後方側にもセットされたラックバーＷの位置等を検出可能なセンサ１２が配置されている。さらに、架台１０の焼入治具２の前方側には、焼入が完了したラックバーＷを複数本の傾斜した桟１３ａにより前方に排出可能な自動排出装置１３が配置されている。   As shown in FIGS. 2 to 4, the jig set base 4 has a substantially rectangular parallelepiped base 10, and a quenching jig 2 is detachably disposed on the rear side of the top surface of the base 10. Further, on the right side of the upper surface of the gantry 10, for example, a rack bar discriminating device 11 having a sensor 11a capable of detecting the vertical direction of the rack bar W is disposed and set on the rear side of the upper surface of the gantry 10 A sensor 12 that can detect the position and the like of the rack bar W is disposed. Further, an automatic discharge device 13 is arranged on the front side of the quenching jig 2 of the gantry 10 so that the rack bar W after quenching can be discharged forward by a plurality of inclined bars 13a.

この治具セット台４上にセットされる前記焼入治具２は、図５〜図７に示す如く構成されている。すなわち、焼入治具２は、平面視長方形状の所定板厚の例えば金属板からなり、下面の四隅に治具セット台４の位置決め孔に嵌合可能な位置決め突起１５ａが設けられたベース１５を有している。このベース１５上には、一対の通電電極１６ａ、１６ｂと、この通電電極１６ａ、１６ｂの下部を支持すると共に該通電電極１６ａ、１６ｂに電気的に接続された一対の導電部材１７ａ、１７ｂと、ラックバーＷの先端側Ｗｃ及び基端側Ｗｄを支持する先端側支持部材１８ａ及び基端側支持部材１８ｂと、前記通電電極１６ａ、１６ｂ間に配置された冷却ジャケット１９が、所定位置に配置されることで、これらの各部材がベース１５に一体化されてユニット化されている。   The quenching jig 2 set on the jig set base 4 is configured as shown in FIGS. That is, the quenching jig 2 is made of, for example, a metal plate having a predetermined plate thickness having a rectangular shape in plan view, and a base 15 provided with positioning projections 15a that can be fitted into the positioning holes of the jig set base 4 at the four corners of the lower surface. have. On the base 15, a pair of current-carrying electrodes 16a and 16b, a pair of conductive members 17a and 17b that support lower portions of the current-carrying electrodes 16a and 16b and are electrically connected to the current-carrying electrodes 16a and 16b, A distal end side support member 18a and a proximal end side support member 18b that support the distal end side Wc and the proximal end side Wd of the rack bar W, and the cooling jacket 19 disposed between the energizing electrodes 16a and 16b are disposed at predetermined positions. Thus, these members are integrated with the base 15 to form a unit.

前記一対の通電電極１６ａ、１６ｂは、所定板厚の銅板により断面（正面視）略Ｌ字形状に形成されて、ラックバーＷの背面Ｗｂ（もしくは歯面Ｗａ）に接触可能な接触部をそれぞれ有している。そして、各通電電極１６ａ、１６ｂは、その水平な固定部が対応する導電部材１７ａ、１７ｂにボルト２０（図５参照）により着脱可能に固定されて、接触部間の間隔が該接触部上に載置されるラックバーＷの背面Ｗｂや歯面Ｗａの焼入長さ等に対応するように設定されている。   The pair of energizing electrodes 16a and 16b are formed in a substantially L-shaped section (front view) by a copper plate having a predetermined thickness, and contact portions that can contact the back surface Wb (or the tooth surface Wa) of the rack bar W, respectively. Have. And each energization electrode 16a, 16b is detachably fixed by the bolt 20 (refer FIG. 5) to the electroconductive member 17a, 17b to which the horizontal fixing | fixed part respond | corresponds, and the space | interval between contact parts is on this contact part. It is set so as to correspond to the back surface Wb of the rack bar W to be placed, the quenching length of the tooth surface Wa, and the like.

前記一対の導電部材１７ａ、１７ｂは、図５に示すように、所定板厚の銅板により形成されて、絶縁部材２１を介して積層配置されると共に、その一方の端部に前記通電電極１６ａ、１６ｂの固定部が前記ボルト２０により固定されている。また、各導電部材１７ａ、１７ｂは、複数個（図では６個）のネジ２２（図３及び図６参照）により前記ベース１５に固定されると共に、一対の導電部材１７ａ、１７ｂの他方の端部は、ベース１５の長手方向の略中間位置から側方（ベース１５の後方側）に突出して、該突出部分が端子部２３ａ、２３ｂ（図６参照）を形成している。この端子部２３ａ、２３ｂに、図示しない銅板等からなる導体の一方の端部が接続され、この導体の他方の端部が前記電源装置７の出力端子に接続されている。   As shown in FIG. 5, the pair of conductive members 17 a and 17 b is formed of a copper plate having a predetermined plate thickness, and is stacked and disposed via an insulating member 21. A fixing portion 16b is fixed by the bolt 20. The conductive members 17a and 17b are fixed to the base 15 by a plurality (six in the figure) of screws 22 (see FIGS. 3 and 6), and the other ends of the pair of conductive members 17a and 17b. The portion protrudes from a substantially intermediate position in the longitudinal direction of the base 15 to the side (rear side of the base 15), and the protruding portions form terminal portions 23a and 23b (see FIG. 6). One end of a conductor made of a copper plate or the like (not shown) is connected to the terminal portions 23a and 23b, and the other end of the conductor is connected to the output terminal of the power supply device 7.

前記先端側支持部材１８ａは、図５及び図６に示すように、ベース１５の左端部に固定されたブロック２５上に図６の矢印イ方向に移動可能な移動板２６と、この移動板２６の先端に固定されラックバーＷの先端側Ｗｃに嵌合可能な嵌合支持部２７を有している。また、移動板２６には、位置調整ボルト２８が挿通される２条の長孔が設けられており、この長孔に対応してブロック２５に設けたネジ孔に位置調整ボルト２８を螺合することで移動板２６が所定位置に固定されて、ラックバーＷの先端側Ｗｃが所定位置に設定支持されるようになっている。   As shown in FIGS. 5 and 6, the front end side support member 18 a includes a movable plate 26 that can move in the direction of arrow A in FIG. 6 on a block 25 fixed to the left end portion of the base 15, and the movable plate 26. It has a fitting support portion 27 that is fixed to the tip end of the rack bar W and can be fitted to the tip end side Wc of the rack bar W. Further, the moving plate 26 is provided with two elongated holes through which the position adjusting bolts 28 are inserted, and the position adjusting bolts 28 are screwed into screw holes provided in the block 25 corresponding to the elongated holes. Thus, the movable plate 26 is fixed at a predetermined position, and the front end side Wc of the rack bar W is set and supported at the predetermined position.

また、前記基端側支持部材１８ｂは、図５に示すように、ベース１５の右端部に固定されたブロック２９上にボルト３０により連結された支持部３１を有し、この支持部３１内には、ボルト３０の先端側に嵌装されたスプリング３２が内蔵されている。このスプリング３２によって、支持部３１がブロック２９に対して弾性支持され、ラックバーＷの外周面形状に対応した支持部３１の円弧面からなる上面で、ラックバーＷの基端側Ｗｄの所定位置が下方から所定位置に設定支持されるようになっている。   Further, as shown in FIG. 5, the base end side support member 18 b has a support portion 31 connected by a bolt 30 on a block 29 fixed to the right end portion of the base 15. Has a built-in spring 32 fitted to the front end side of the bolt 30. The spring 32 elastically supports the support portion 31 with respect to the block 29 and is a predetermined position on the base end side Wd of the rack bar W on the upper surface formed by the arc surface of the support portion 31 corresponding to the outer peripheral surface shape of the rack bar W. Is set and supported at a predetermined position from below.

前記冷却ジャケット１９は、前記一対の通電電極１６ａ、１６ｂ間に配置され、図７〜図９に示すように、内部に冷却水流路３３ａが形成され通電電極１６ａ、１６ｂの長さに対応した細長箱形状のジャケット本体３３（本体３３という）と、この本体３３の幅方向（図８の左右方向）の両端部上に連設され、本体３３の長さに対応した所定長さの前後一対の焼入パターン調整手段としての焼入パターン調整板４０（調整板４０という）を有している。前記本体３３の上面には、冷却水流路３３ａに連通した多数の噴射孔３３ｂが形成され、この噴射孔３３ｂから前記冷却水供給装置８からホースやホースコネクタ３４（図６参照）を介して供給される冷却水が、上方に向けて所定圧で噴射されるようになっている。   The cooling jacket 19 is disposed between the pair of current-carrying electrodes 16a and 16b, and as shown in FIGS. 7 to 9, a cooling water flow path 33a is formed inside and is elongated corresponding to the length of the current-carrying electrodes 16a and 16b. A box-shaped jacket main body 33 (referred to as a main body 33) and a pair of front and rear pairs of a predetermined length corresponding to the length of the main body 33 are provided on both ends of the main body 33 in the width direction (left and right direction in FIG. 8). A quenching pattern adjustment plate 40 (referred to as adjustment plate 40) is provided as quenching pattern adjustment means. A large number of injection holes 33b communicating with the cooling water flow path 33a are formed on the upper surface of the main body 33, and supplied from the cooling water supply device 8 through the hose and the hose connector 34 (see FIG. 6). The cooling water to be discharged is jetted upward at a predetermined pressure.

また、前記一対の調整板４０は、例えば所定板厚の銅の板体で形成されて、その下端部に設けられた段差状の取付部４０ａが、本体３３の上面にロー付け等により固定されている。このとき、調整板４０の上下幅は、上端がラックバーＷの軸中心Ｃより所定寸法ｈ１上方に位置するように設定されている。また、調整板４０のラックバーＷの外周面と対向する内面には、案内面４０ｂが形成され、この案内面４０ｂは、下部に本体３３の噴射面３３ｃの円周形状に対応する曲面４０ｂ１と、この曲面４０ｂ１上に連設された垂直面４０ｂ２を有している。   Further, the pair of adjustment plates 40 is formed of, for example, a copper plate having a predetermined thickness, and a step-like mounting portion 40a provided at the lower end thereof is fixed to the upper surface of the main body 33 by brazing or the like. ing. At this time, the vertical width of the adjustment plate 40 is set such that the upper end is positioned above the axial center C of the rack bar W by a predetermined dimension h1. Further, a guide surface 40b is formed on the inner surface of the adjustment plate 40 facing the outer peripheral surface of the rack bar W, and this guide surface 40b has a curved surface 40b1 corresponding to the circumferential shape of the ejection surface 33c of the main body 33 at the bottom. The vertical surface 40b2 is provided on the curved surface 40b1.

また、この案内面４０ｂの曲面４０ｂ１等により、本体３３の噴射面３３ｃと調整板４０の案内面４０ｂとが一つの連続した面となるように形成されている。なお、案内面４０ｂの曲面４０ｂ１は、垂直面４０ｂ２と本体３３の噴射面３３ｃとの間に略一つの連続した面が得られる場合には、省略することも可能である。また、前記本体３３の例えば一方の側面の所定位置には複数の進入孔４１が設けられ、この進入孔４１には前記ホースコネクタ３４が連結され、この進入孔４１から冷却水が本体３３の冷却水流路３３ａ内に所定圧力で図８の矢印ロの如く進入するようになっている。   Further, the injection surface 33c of the main body 33 and the guide surface 40b of the adjustment plate 40 are formed as one continuous surface by the curved surface 40b1 of the guide surface 40b. Note that the curved surface 40b1 of the guide surface 40b may be omitted when substantially one continuous surface is obtained between the vertical surface 40b2 and the ejection surface 33c of the main body 33. In addition, a plurality of entry holes 41 are provided at a predetermined position, for example, on one side surface of the main body 33, and the hose connector 34 is connected to the entry holes 41, and cooling water cools the main body 33 from the entry holes 41. The water passage 33a is entered at a predetermined pressure as indicated by an arrow B in FIG.

なお、焼入治具２の前記ベース１５の左右端部には、取手３５が側方であるベース１５の長手方向に突出する状態で固定されており、この取手３５を作業者が手で持ったり、あるいはクレーンやロボット等で持つことにより、焼入治具２が持ち運び（運搬）可能となっている。また、前記ベース１５の適宜位置には、焼入治具２を自動識別もしくは目視識別可能な識別マーク３６（図６参照）が付与されている。さらに、前記電源装置７は、例えばインバータ回路等を有して、低・中周波の電流から高周波の電流までの少なくとも２種類の周波数の電流を、一対の通電電極１６ａ、１６ｂに出力可能に構成されている。   A handle 35 is fixed to the left and right ends of the base 15 of the quenching jig 2 so as to protrude in the longitudinal direction of the base 15 which is a side, and the operator holds the handle 35 by hand. Or by holding it with a crane or a robot, the quenching jig 2 can be carried (carried). In addition, an identification mark 36 (see FIG. 6) is provided at an appropriate position of the base 15 so that the quenching jig 2 can be automatically identified or visually identified. Furthermore, the power supply device 7 has an inverter circuit, for example, and is configured to be able to output currents of at least two types of frequencies from low / medium frequency currents to high frequency currents to the pair of energizing electrodes 16a and 16b. Has been.

次に、前記焼入装置１の動作の一例を、ラックバーＷの背面Ｗｂを焼入する場合を例にして説明する。先ず、焼入装置１で焼入されるラックバーＷの背面Ｗｂの焼入長さ等の形態に応じた焼入治具２を予め準備し、このとき、焼入治具２の一対の通電電極１６ａ、１６ｂ間の対向距離や、冷却ジャケット１９のジャケット本体３３の噴射孔３３ｂの位置や内径、先端側支持部材１８ａの移動板２６の位置、基端側支持部材１８ｂの支持部３１の上面形状等は、対応するラックバーＷの形態（ラックバーＷ自体の形状や背面Ｗｂの焼入パターン等）に応じて予め所定に設定されている。   Next, an example of the operation of the quenching apparatus 1 will be described using the case where the back surface Wb of the rack bar W is quenched as an example. First, a quenching jig 2 is prepared in advance according to the quenching length and the like of the back surface Wb of the rack bar W to be quenched by the quenching apparatus 1, and at this time, a pair of energization of the quenching jig 2 is performed. The facing distance between the electrodes 16a and 16b, the position and inner diameter of the injection hole 33b of the jacket body 33 of the cooling jacket 19, the position of the moving plate 26 of the distal end side support member 18a, and the upper surface of the support portion 31 of the proximal end side support member 18b The shape and the like are set in advance according to the form of the corresponding rack bar W (the shape of the rack bar W itself, the quenching pattern of the back surface Wb, etc.).

そして、焼入するラックバーＷに対応した焼入治具２を治具セット台４にセットし、焼入治具２の支持部材１８ａ、１８ｂで例えば歯面Ｗａが焼入された（もしくは未焼入の）ラックバーＷの背面Ｗｂを支持する。この支持状態において、ラックバーＷの背面Ｗｂの長手方向の両端部に前記通電電極１６ａ、１６ｂの接触部を接触させる。この接触状態で、制御装置６の制御により、電源装置７が作動して通電電極１６ａ、１６ｂの接触部を介してラックバーＷの背面Ｗｂに所定周波数の電流が通電される。この通電は、例えば低周波（もしくは中周波）の電流を通電電極１６ａ、１６ｂに供給して所定時間の予備通電加熱を行い、この予備通電加熱でラックバーＷの温度を所定温度まで上昇させた後に、高周波の電流を通電電極１６ａ、１６ｂに所定時間供給することで行われる。   Then, the hardening jig 2 corresponding to the rack bar W to be hardened is set on the jig setting table 4, and for example, the tooth surface Wa is hardened by the support members 18 a and 18 b of the hardening jig 2 (or not yet). The back surface Wb of the hardened rack bar W is supported. In this supported state, the contact portions of the energizing electrodes 16a and 16b are brought into contact with both longitudinal end portions of the back surface Wb of the rack bar W. In this contact state, under the control of the control device 6, the power supply device 7 is activated, and a current having a predetermined frequency is supplied to the back surface Wb of the rack bar W through the contact portions of the energization electrodes 16 a and 16 b. In this energization, for example, a low-frequency (or medium-frequency) current is supplied to the energizing electrodes 16a and 16b to perform pre-energization heating for a predetermined time, and the temperature of the rack bar W is increased to a predetermined temperature by this pre-energization heating. Later, high-frequency current is supplied to the energizing electrodes 16a and 16b for a predetermined time.

そして、所定時間の通電加熱が終了したら、冷却ジャケット１９から冷却水が所定時間噴射され、この冷却水の噴射による急速冷却でラックバーＷの背面Ｗｂが焼入される。この冷却水による焼入時に、冷却ジャケット１９の本体３３の冷却水流路３３ａ内に図８の矢印ロの如く進入した冷却水は、本体３３の噴射孔３３ｂから矢印ハの如く上方に噴射され、この冷却水がラックバーＷの背面Ｗｂに接触しつつ、該背面Ｗｂと本体３３の噴射面３３ｃ及び調整板４０の案内面４０ｂとの間を上方に矢印ニの如く流れる。つまり、冷却ジャケット１９から噴射される冷却水は、ラックバーＷの軸中心Ｃより円周方向の上方に向けて噴射される（流れる）ことになる。この冷却水は、例えば冷却ジャケット１９の長手方向の端部から外部に排水される。   Then, when the energization heating for a predetermined time is completed, the cooling water is injected from the cooling jacket 19 for a predetermined time, and the back surface Wb of the rack bar W is quenched by the rapid cooling by the cooling water injection. At the time of quenching with the cooling water, the cooling water that has entered the cooling water flow path 33a of the main body 33 of the cooling jacket 19 as indicated by the arrow B in FIG. 8 is jetted upward from the injection hole 33b of the main body 33 as indicated by the arrow C, While this cooling water is in contact with the rear surface Wb of the rack bar W, it flows upward between the rear surface Wb, the ejection surface 33c of the main body 33 and the guide surface 40b of the adjusting plate 40 as indicated by an arrow D. That is, the cooling water jetted from the cooling jacket 19 is jetted (flowed) upward in the circumferential direction from the axial center C of the rack bar W. This cooling water is drained to the outside from, for example, the end portion of the cooling jacket 19 in the longitudinal direction.

なお、実験によれば、前記調整板４０を使用した場合のラックバーＷの背面Ｗｂの焼入状態と、前記調整板４０を使用しない場合の焼入状態を比較したところ、図１０に示す結果が得られた。図１０（ｂ）は、調整板４０を使用しない場合の焼入層４２を示し、その焼入パターン角度α２が比較的小さくなっている。これに対して、図１０（ａ）に示すように、調整板４０を使用した場合は、焼入層４２が歯面Ｗａ方向に延びて大きな焼入パターン角度α１が得られ、ラックバーＷの背面Ｗｂとして良好な焼入状態が得られることが確認された。   In addition, according to experiment, when the quenching state of the back surface Wb of the rack bar W when the adjustment plate 40 is used and the quenching state when the adjustment plate 40 is not used are compared, the result shown in FIG. was gotten. FIG. 10B shows the quenching layer 42 when the adjustment plate 40 is not used, and the quenching pattern angle α2 is relatively small. On the other hand, as shown in FIG. 10A, when the adjustment plate 40 is used, the hardened layer 42 extends in the tooth surface Wa direction, and a large hardened pattern angle α1 is obtained. It was confirmed that a good quenching state was obtained as the back surface Wb.

そして、背面Ｗｂが焼入されたラックバーＷは、支持部材１８ａ、１８ｂによる支持が解除されて、例えばラックバーＷの下方に位置する自動排出装置１３の桟１３ａの先端が上昇することで、傾斜している桟１３ａに沿って治具セット台４の前方に排出されて、焼入作業が終了する。なお、ラックバーＷの歯面Ｗａの焼入は、例えば前記通電電極１６ａ、１６ｂにより例えば背面Ｗｂの焼入前に行うことができ、また、所定形態の全てのラックバーＷの背面Ｗｂ等の焼入作業が終了し、他の異なる形態のラックバーＷを焼入する場合は、治具セット台４にセットされている焼入治具２を、所定の焼入治具２に交換することで行うことができる。   Then, the rack bar W in which the back surface Wb is hardened is released from the support by the support members 18a and 18b, and the tip of the cross 13a of the automatic discharge device 13 positioned below the rack bar W is raised, for example, It is discharged to the front of the jig set base 4 along the inclined bar 13a, and the quenching operation is completed. The tooth surface Wa of the rack bar W can be hardened by, for example, the current-carrying electrodes 16a and 16b before the back surface Wb is hardened, and the back surface Wb of all the rack bars W in a predetermined form can be used. When quenching is completed and another type of rack bar W is to be quenched, the quenching jig 2 set on the jig set base 4 is replaced with a predetermined quenching jig 2. Can be done.

このように、前記実施形態の焼入装置１においては、冷却水を噴射可能な冷却ジャケット１９が、内部に冷却水流路３３ａが形成された本体３３と、該本体３３の上部に連設されその上端がラックバーＷの軸中心Ｃより所定寸法ｈ１上方に位置して冷却水をラックバーＷの背面Ｗｂの円周方向上方に案内可能な調整板４０を備えるため、冷却ジャケット１９のラックバーＷとの対向面積を拡大して、ラックバーＷの冷却水による冷却範囲を円周方向の上方に広げることができ、ラックバーＷの背面Ｗｂに所望の焼入パターン（焼入層４２）を容易に得ることができる。   As described above, in the quenching apparatus 1 of the above embodiment, the cooling jacket 19 capable of injecting cooling water is connected to the main body 33 in which the cooling water flow path 33a is formed and the upper portion of the main body 33. Since the upper end is located above the axial center C of the rack bar W by a predetermined dimension h1 and the adjustment plate 40 can guide the cooling water in the circumferential direction above the rear surface Wb of the rack bar W, the rack bar W of the cooling jacket 19 is provided. The cooling area of the rack bar W with the cooling water can be expanded upward in the circumferential direction, and a desired quenching pattern (quenched layer 42) can be easily formed on the rear surface Wb of the rack bar W. Can get to.

特に、調整板４０が一対の板体で形成され、この板体の案内面４０ｂが垂直面４０ｂ２と曲面４０ｂ１で形成されているため、本体３３の噴射面３３ｃと案内面４０ｂを一つの連続した面とすることができて、本体３３の噴射孔３３ｂから噴射される冷却水を調整板４０の案内でラックバーＷの背面Ｗｂの円周方向上方にスムーズに案内して、通電により加熱された背面Ｗｂを良好に冷却することができる。その結果、ラックバーＷの背面Ｗｂの焼入パターン角度α１を大きくして、焼入範囲を歯面Ｗａ側まで広げることができ、背面Ｗｂに最適な焼入層４２を容易に形成することが可能となる。   In particular, the adjustment plate 40 is formed by a pair of plates, and the guide surface 40b of the plate is formed by a vertical surface 40b2 and a curved surface 40b1, so that the injection surface 33c and the guide surface 40b of the main body 33 are one continuous. The cooling water injected from the injection hole 33b of the main body 33 can be smoothly guided by the guide of the adjustment plate 40 in the circumferential direction above the rear surface Wb of the rack bar W and heated by energization. The back surface Wb can be cooled satisfactorily. As a result, the quenching pattern angle α1 on the back surface Wb of the rack bar W can be increased to widen the quenching range to the tooth surface Wa side, and the optimum hardened layer 42 can be easily formed on the back surface Wb. It becomes possible.

また、ラックバーＷの背面Ｗｂの焼入時に、電源装置７から一対の通電電極１６ａ、１６ｂに、低・中周波数の電流を所定時間供給した後に高周波の電流を所定時間供給するようにすれば、低・中周波数電流の通電による予備加熱後に高周波電流で通電加熱できて、ラックバーＷの背面Ｗｂに、その周面に沿って拡がった一層良好な焼入層４２を形成することができる。   Further, when the back surface Wb of the rack bar W is hardened, a high frequency current is supplied for a predetermined time after a low and medium frequency current is supplied from the power supply device 7 to the pair of energizing electrodes 16a and 16b for a predetermined time. Further, after preheating by energization with low / medium frequency current, it can be energized and heated with high frequency current, and a better hardened layer 42 extending along the peripheral surface can be formed on the back surface Wb of the rack bar W.

さらにまた、一対の通電電極１６ａ、１６ｂ、一対の導電部材１７ａ、１７ｂ、先端側支持部材１８ａと基端側支持部材１８ｂ及び冷却ジャケット１９からなる各部材が、平面視略長方形状の平板状のベース１５上に一体的に配置されてユニット化されているため、各種ラックバーＷの焼入にユニット化されて識別化された所定の焼入治具２を使用することで各種ラックバーＷの焼入に的確に対応することができる。その結果、焼入作業の段取り時間の短縮化が図れたり、ラックバーＷの種類に係わらず、同一形態の各ラックバーＷの焼入精度の均一化や、異なる形態のラックバーＷにおける焼入精度の均一再現性を図り、常に安定した焼入品質の各種ラックバーＷを容易に得ることができる。   Furthermore, each member including the pair of energizing electrodes 16a and 16b, the pair of conductive members 17a and 17b, the distal end side support member 18a, the proximal end side support member 18b, and the cooling jacket 19 has a substantially rectangular plate shape in plan view. Since the unit is integrally arranged on the base 15, various rack bars W can be formed by using the predetermined quenching jig 2 that is unitized and identified for quenching the various rack bars W. It can cope with quenching accurately. As a result, the setup time for the quenching work can be shortened, the quenching accuracy of each rack bar W having the same form can be made uniform regardless of the type of the rack bar W, and the quenching in the rack bars W having different forms can be performed. The uniform reproducibility of accuracy can be achieved, and various rack bars W with always stable quenching quality can be easily obtained.

図１１及び図１２は、前記調整板４０の変形例を示している。以下、前記実施形態と同一部位には、同一符号を付して説明する。図１１に示す調整板４０の特徴は、該調整板４０の案内面４０ｂの全体を傾斜面４０ｂ３で形成して、本体３３の噴射面３３ｃに連続する略一つの面としたものである。この調整板４０においても、前記調整板４０と同様の作用効果を得ることができる他に、調整板４０自体の形状を簡略化して、安価に形成することができる。   11 and 12 show a modification of the adjustment plate 40. FIG. Hereinafter, the same parts as those in the above embodiment will be described with the same reference numerals. The adjustment plate 40 shown in FIG. 11 is characterized in that the entire guide surface 40b of the adjustment plate 40 is formed by an inclined surface 40b3 so as to be substantially one surface continuous to the ejection surface 33c of the main body 33. In the adjustment plate 40, the same effect as the adjustment plate 40 can be obtained, and the shape of the adjustment plate 40 itself can be simplified and formed at low cost.

また、図１２に示す調整板４０の特徴は、段差状の取付部４０ａに上下方向の複数の長孔４４を形成すると共に、本体３３の両側面の上部に複数のネジ孔４５を形成する。そして、各長孔４４から対応するネジ孔４５にボルト４６をそれぞれねじ込むことにより、調整板４０を本体３３に対して図の矢印ホの如く上下方向に位置調整可能でかつ着脱可能としたものである。この調整板４０によれば、本体３３に対する上下方向の位置調整により、ラックバーＷの軸中心Ｃと調整板４０の上端との間の寸法ｈ１（すなわち冷却水による冷却範囲）を調整できると共に、調整板４０を複数種準備し、これらを適宜に交換することにより、ラックバーＷの背面Ｗｂに各種焼入パターンの焼入層４２を簡単かつ確実に形成することができる。   The adjustment plate 40 shown in FIG. 12 is characterized in that a plurality of elongated holes 44 in the vertical direction are formed in the step-shaped attachment portion 40 a and a plurality of screw holes 45 are formed in the upper portions on both side surfaces of the main body 33. The bolts 46 are screwed into the corresponding screw holes 45 from the respective long holes 44 so that the position of the adjustment plate 40 can be adjusted vertically with respect to the main body 33 as shown by the arrow H in the figure and can be attached and detached. is there. According to this adjustment plate 40, by adjusting the position in the vertical direction with respect to the main body 33, the dimension h1 (that is, the cooling range by cooling water) between the axis center C of the rack bar W and the upper end of the adjustment plate 40 can be adjusted. By preparing a plurality of types of adjusting plates 40 and replacing them appropriately, the quenching layer 42 of various quenching patterns can be easily and reliably formed on the back surface Wb of the rack bar W.

なお、前記実施形態における、調整板４０の板厚や取付部４０ａ、案内面４０ｂの形状、本体３３への固定構造や着脱構造等は一例であって、例えば図８及び図１１の構造において、調整板４０を複数のネジで着脱可能に固定したり、案内面４０ｂを傾斜面４０ｂ３と垂直面４０ｂ２を組み合わせた構成とする等、同等の作用効果が得られる適宜の構成を採用することができる。   In the embodiment, the thickness of the adjustment plate 40, the shape of the mounting portion 40a, the guide surface 40b, the fixing structure to the main body 33, the attachment / detachment structure, and the like are examples, and for example, in the structure of FIGS. It is possible to adopt an appropriate configuration that can obtain the same operational effects, such as fixing the adjustment plate 40 detachably with a plurality of screws, or combining the guide surface 40b with the inclined surface 40b3 and the vertical surface 40b2. .

本発明は、ラックバーの背面を通電加熱で焼入する焼入装置への適用に限らず、誘導加熱を利用して焼入する焼入装置にも適用できるし、ラックバー以外の全ての軸状ワークの所定面の焼入にも利用できる。   The present invention can be applied not only to a quenching apparatus that quenches the back surface of the rack bar by electric heating, but also to a quenching apparatus that quenches using induction heating, and all shafts other than the rack bar. It can also be used for quenching a predetermined surface of a workpiece.

１・・・焼入装置、２・・・焼入治具、４・・・治具セット台、５・・・ワーク制御装置、６・・・制御装置、７・・・電源装置、８・・・冷却水供給装置、１３・・・自動排出装置、１５・・・ベース、１６ａ、１６ｂ・・・通電電極、１７ａ、１７ｂ・・・導電部材、１８ａ・・・先端側支持部材、１８ｂ・・・基端側支持部材、１９・・・冷却ジャケット、３３・・・ジャケット本体、３３ａ・・・冷却水流路、３３ｂ・・・噴射孔、３３ｃ・・・噴射面、３４・・・ホースコネクタ、３５・・・取手、４０・・・焼入パターン調整板、４０ａ・・・取付部、４０ｂ・・・案内面、４０ｂ１・・・曲面、４０ｂ２・・・垂直面、４０ｂ３・・・傾斜面、４１・・・進入孔、４２・・・焼入層、４４・・・長孔、４５・・・ネジ孔、４６・・・ボルト、Ｗ・・・ラックバー、Ｗａ・・・歯面、Ｗｂ・・・背面、φ１、φ２・・・焼入パターン角度。   DESCRIPTION OF SYMBOLS 1 ... Hardening device, 2 ... Hardening jig, 4 ... Jig set stand, 5 ... Work control device, 6 ... Control device, 7 ... Power supply device, 8 ..Cooling water supply device, 13 ... automatic discharge device, 15 ... base, 16a, 16b ... conducting electrode, 17a, 17b ... conductive member, 18a ... tip side support member, 18b .... Base end side support member, 19 ... Cooling jacket, 33 ... Jacket body, 33a ... Cooling water flow path, 33b ... Injection hole, 33c ... Injection surface, 34 ... Hose connector 35 ... handle, 40 ... quenching pattern adjusting plate, 40a ... mounting portion, 40b ... guide surface, 40b1 ... curved surface, 40b2 ... vertical surface, 40b3 ... inclined surface 41... Entrance hole, 42... Quenching layer, 44... Long hole, 45. ... bolt, W ··· rack bar, Wa ··· tooth surface, Wb ··· back, φ1, φ2 ··· quenching pattern angle.

Claims (4)

所定周波数の電流の通電加熱もしくは誘導加熱により軸状ワークの所定面を加熱可能な電源装置と、前記軸状ワークの加熱面に冷却媒体を噴射して冷却可能な冷却ジャケットと、を備えた軸状ワークの焼入装置であって、
前記冷却ジャケットは、内部に冷却媒体の流路が形成されると共に該流路に連通し軸状ワークの加熱面と対向する面に噴射孔が形成された本体と、該本体に連設されその上端が前記軸状ワークの軸中心位置より所定寸法上方に位置して、前記噴射孔から噴射された冷却媒体を軸状ワークの外周面の円周方向上方に案内可能な焼入パターン調整手段と、を備えることを特徴とする軸状ワークの焼入装置。 A shaft comprising: a power supply device capable of heating a predetermined surface of a shaft-shaped workpiece by energization heating or induction heating of a current of a predetermined frequency; and a cooling jacket capable of cooling by injecting a cooling medium onto the heating surface of the shaft-shaped workpiece. A workpiece hardening machine,
The cooling jacket includes a main body in which a flow path for a cooling medium is formed and a jet hole is formed in a surface that communicates with the flow path and faces the heating surface of the shaft-shaped workpiece. A quenching pattern adjusting means having an upper end positioned at a predetermined dimension above the axial center position of the shaft-shaped workpiece and capable of guiding the cooling medium sprayed from the spray holes upward in the circumferential direction of the outer peripheral surface of the shaft-shaped workpiece; A quenching device for a shaft-like workpiece, comprising: 前記焼入パターン調整手段は、前記本体の両端部上に連設された一対の板体を有し、該板体の案内面が前記軸状ワークの外周面に所定の隙間を有して対向配置された垂直面、傾斜面、曲面の少なくとも一つで形成されていることを特徴とする請求項１に記載の軸状ワークの焼入装置。   The quenching pattern adjusting means has a pair of plate bodies arranged on both ends of the main body, and the guide surfaces of the plate bodies are opposed to the outer peripheral surface of the shaft-like workpiece with a predetermined gap. The shaft workpiece hardening apparatus according to claim 1, wherein the quenching device is formed of at least one of a vertical surface, an inclined surface, and a curved surface. 前記焼入パターン調整手段は、前記本体に、軸状ワークの外周面に対して円周方向の位置関係が調整可能に連設されていることを特徴とする請求項１または２に記載の軸状ワークの焼入装置。   3. The shaft according to claim 1, wherein the quenching pattern adjusting means is connected to the main body so that a positional relationship in a circumferential direction can be adjusted with respect to an outer peripheral surface of the shaft-shaped workpiece. Hardening device for a workpiece. 前記軸状ワークは、ラックバーで前記加熱面が該ラックバーの背面であることを特徴とする請求項１ないし３のいずれかに記載の軸状ワークの焼入装置。   The shaft-shaped workpiece hardening apparatus according to any one of claims 1 to 3, wherein the shaft-shaped workpiece is a rack bar, and the heating surface is a back surface of the rack bar.
JP2011238287A 2011-10-31 2011-10-31 Axial workpiece quenching equipment Active JP5813461B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011238287A JP5813461B2 (en) 2011-10-31 2011-10-31 Axial workpiece quenching equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011238287A JP5813461B2 (en) 2011-10-31 2011-10-31 Axial workpiece quenching equipment

Publications (2)

Publication Number Publication Date
JP2013095950A true JP2013095950A (en) 2013-05-20
JP5813461B2 JP5813461B2 (en) 2015-11-17

Family

ID=48618229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011238287A Active JP5813461B2 (en) 2011-10-31 2011-10-31 Axial workpiece quenching equipment

Country Status (1)

Country Link
JP (1) JP5813461B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014178152A1 (en) 2013-04-30 2014-11-06 Ｄｅｌｔａ－Ｆｌｙ Ｐｈａｒｍａ株式会社 Locally administered liposome and application therefor
DK177974B1 (en) * 2013-09-09 2015-02-09 Broen As Plant and method for relaxing annealing of a workpiece comprising heat-sensitive parts, as well as relaxation-annealed workpiece
CN105986069A (en) * 2015-02-11 2016-10-05 十堰恒进科技有限公司 Quenching inductor special for inner wall of chuck jack catch groove
CN114182087A (en) * 2021-12-13 2022-03-15 大连德迈仕精密科技股份有限公司 Shaft part machining device and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107723433A (en) * 2017-11-01 2018-02-23 宁波德科自动门科技有限公司 A kind of overlength bar special steel quenching unit
CN109338055B (en) * 2018-11-27 2020-06-30 湖南三特机械制造有限公司 Continuous guenching unit of track with upset function
WO2021033601A1 (en) 2019-08-20 2021-02-25 マクセルホールディングス株式会社 All-solid-state battery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014178152A1 (en) 2013-04-30 2014-11-06 Ｄｅｌｔａ－Ｆｌｙ Ｐｈａｒｍａ株式会社 Locally administered liposome and application therefor
DK177974B1 (en) * 2013-09-09 2015-02-09 Broen As Plant and method for relaxing annealing of a workpiece comprising heat-sensitive parts, as well as relaxation-annealed workpiece
CN105986069A (en) * 2015-02-11 2016-10-05 十堰恒进科技有限公司 Quenching inductor special for inner wall of chuck jack catch groove
CN114182087A (en) * 2021-12-13 2022-03-15 大连德迈仕精密科技股份有限公司 Shaft part machining device and method
CN114182087B (en) * 2021-12-13 2023-09-01 大连德迈仕精密科技股份有限公司 Shaft part machining device and method

Also Published As

Publication number Publication date
JP5813461B2 (en) 2015-11-17

Similar Documents

Publication Publication Date Title
JP5813461B2 (en) Axial workpiece quenching equipment
KR20150094780A (en) Gas-blowing-hole array structure and soldering device
JP2010108896A (en) High-frequency heating coil
JP5875176B2 (en) Electrical heating device for shaft workpiece
KR20190045221A (en) Resistance welding equipment
JP5630812B2 (en) Hardening jig for rack bar
JPH05263125A (en) Full automatic high-frequency induction quenching device
JP3932809B2 (en) Low strain quenching equipment and quenching method
CN104209646A (en) Fixed type projection welder and multi-section projection welding method
CN117047268A (en) Welding equipment and pressure head assembly thereof
JP6057329B2 (en) Rack bar induction hardening equipment
JP3865451B2 (en) High frequency direct current quenching equipment for rack bar
CN210683875U (en) Superaudio induction hardening device
JP6537164B2 (en) Rack bar electric heating device
CN210080902U (en) Electric iron welding workbench for electronic engineering
JP2623401B2 (en) Surface hardening equipment for long workpieces
JP2001329313A (en) High frequency heating coil body
JP2011190510A (en) Energization-heating method and energization-heating apparatus
JP5446002B2 (en) Induction hardening equipment
KR101676392B1 (en) Electrode device for electrically assisted heating apparatus and electrically assisted heating apparatus having the same
CN105986069A (en) Quenching inductor special for inner wall of chuck jack catch groove
JPH05230522A (en) Fully automatic high-frequency hardening device
JP3860634B2 (en) High frequency direct current quenching equipment for rack bar
JP7457970B2 (en) Induction heating coil and induction heating device
KR101262117B1 (en) Tension bridle roll welding device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140703

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150804

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150805

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150915

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150916

R150 Certificate of patent or registration of utility model

Ref document number: 5813461

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250