JP2015064092A - Bearing, method of manufacturing bearing, and method of managing bearing - Google Patents

Bearing, method of manufacturing bearing, and method of managing bearing Download PDF

Info

Publication number
JP2015064092A
JP2015064092A JP2013199428A JP2013199428A JP2015064092A JP 2015064092 A JP2015064092 A JP 2015064092A JP 2013199428 A JP2013199428 A JP 2013199428A JP 2013199428 A JP2013199428 A JP 2013199428A JP 2015064092 A JP2015064092 A JP 2015064092A
Authority
JP
Japan
Prior art keywords
bearing
engraved
identification data
characters
manufacturing
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
JP2013199428A
Other languages
Japanese (ja)
Other versions
JP6311255B2 (en
Inventor
貴也 長濱
Takaya Nagahama
貴也 長濱
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.)
JTEKT Corp
Original Assignee
JTEKT Corp
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 JTEKT Corp filed Critical JTEKT Corp
Priority to JP2013199428A priority Critical patent/JP6311255B2/en
Publication of JP2015064092A publication Critical patent/JP2015064092A/en
Application granted granted Critical
Publication of JP6311255B2 publication Critical patent/JP6311255B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

PROBLEM TO BE SOLVED: To engrave identification data on an outer surface such as an end face of an inner ring or an outer ring of a bearing in a relatively short time without eliminating the identification data by rubbing.SOLUTION: In a bearing 10 having an inner ring 12, an outer ring 14, and rolling elements 16, characters such as characters and symbols as identification data 20 peculiar to the bearing, are engraved, at least one of the characters is formed by engraved aggregate of recesses and projections engraved on the end face 14A, and a combination different for each bearing, is configured by combination of a depth, a height and a diameter of each formation of the recesses and projections of the engraved collection forming at least a part of the characters.

Description

本発明は、軸受固有の識別データが刻設された軸受に関する。及び、その軸受の製造方法に関する。更には、その軸受の管理方法に関する。   The present invention relates to a bearing in which identification data unique to the bearing is engraved. And it is related with the manufacturing method of the bearing. Furthermore, it is related with the management method of the bearing.

一般に軸受は、相対回転する一方側の第一軌道輪と、他方側の第二軌道輪と、該第一軌道輪と第二軌道輪との間に介在される転動体を有して構成される。通常の転がり軸受の場合には、相対的に径方向内方側に配設される内輪と、相対的に径方向外方側に配設される外輪と、該内輪と外輪との間に介在される転動体とを有して構成される。この種、軸受においては、近年、軸受トレーサビリティのニーズが出てきており、それに対してレーザマーキングを使い軸受内外輪のいずれかに製造国、製造会社（製造工場）、製造年月日や製造会社規定の社内コード等が識別データとして付与されている。
従来のレーザマーキングはいわゆる黒色レーザマーキングと称されるものであり、且つ、このレーザマーキングはこのマーキングの性質上、軸受製造最終工程の軸受組付け後で行なっている。したがって、製造工程の上流工程では識別データが付与されていない無印の内輪や外輪が流れることになり、製造工程中には当該軸受の熱処理の条件や材質をいわゆる現物からは判別できないという不都合があった。
このため、仮に従来の黒色レーザーマーキングで軸受の製造工程中に識別データを付与しても、黒色レーザーマーキングは加工表面に酸化膜を付着させることで識別データの黒色文字等を形成する方式のため、製造工程中に生じる軽い擦れで酸化膜が除去され易く、文字等が消去されてしまうと言う不具合を生じる。例えば、軸受の製造工程における熱処理工程や研削工程の前に黒色レーザーマーキングで文字等の識別データを付与した場合には、当該工程の作業における擦れにより消えてしまうことがある。特に、研削加工による削除によりデータが消えてしまう。
なお、このような擦れにより消去される不具合は、軸受の製造工程後の流通過程の運搬中や、組付後でも生じることがある。
したがって、擦れにより消去されることのない識別データを軸受に付与することが望まれている。 Generally, a bearing is configured to include a first bearing ring on one side that rotates relatively, a second bearing ring on the other side, and rolling elements that are interposed between the first bearing ring and the second bearing ring. The In the case of a normal rolling bearing, an inner ring disposed relatively on the radially inner side, an outer ring disposed relatively on the radially outer side, and interposed between the inner ring and the outer ring. It is comprised with the rolling element made. In recent years, in this type of bearings, the need for bearing traceability has emerged, and in response to this, laser marking is used for either the bearing inner or outer ring, the manufacturing country, manufacturing company (manufacturing factory), manufacturing date or manufacturing company. A specified in-house code is assigned as identification data.
The conventional laser marking is called a so-called black laser marking, and this laser marking is performed after the assembly of the bearing in the final manufacturing process of the bearing due to the nature of the marking. Therefore, in the upstream process of the manufacturing process, unmarked inner and outer rings to which no identification data is given flow, and there is a disadvantage that the heat treatment conditions and material of the bearing cannot be distinguished from the so-called actual product during the manufacturing process. It was.
For this reason, even if identification data is given during the manufacturing process of the bearing with the conventional black laser marking, the black laser marking is a method for forming black characters of identification data by attaching an oxide film to the processed surface. The oxide film is easily removed by light rubbing that occurs during the manufacturing process, resulting in a problem that characters and the like are erased. For example, when identification data such as characters is given by black laser marking before the heat treatment process or grinding process in the bearing manufacturing process, it may disappear due to rubbing in the work of the process. In particular, data is lost due to deletion by grinding.
In addition, the trouble erase | eliminated by such rubbing may arise also during conveyance of the distribution process after the manufacturing process of a bearing, and after assembly | attachment.
Therefore, it is desired to provide the bearing with identification data that is not erased by rubbing.

特開２００５−５０３３９号公報JP 2005-50339 A 特開２０１０−７０２７４号公報JP 2010-70274 A

上述した熱処理や研削等における擦れにより文字等の識別データを消去しないようにするために、本発明者は、先ず、擦れにより消去されることのない凹凸などの刻設集合体で軸受の外輪や内輪の端面に識別データを刻設することを着想した。
しかし、文字等自体を消去されない凹凸の刻設集合体で軸受の外面に形成することは、その形成には時間を要するという別の問題を生じる。 In order to prevent the identification data such as characters from being erased by rubbing in the above-described heat treatment or grinding, the present inventor first makes an outer ring of the bearing or the like by using an engraved assembly such as unevenness that is not erased by rubbing. The idea was to engrave identification data on the end face of the inner ring.
However, forming the letters and the like themselves on the outer surface of the bearing with a concave and convex engraved assembly that does not erase causes another problem that it takes time to form.

而して、本発明は上述した点に鑑みて創案されたものであって、本発明が解決しようとする課題は、識別データが擦れにより消去されることがなく、かつ、比較的短時間で軸受の内輪や外輪の端面に刻設できることを可能とすることにある。
また、識別データを軸受の製造工程中の好ましい工程位置で刻設することにある。
更には、かかる軸受に刻設された識別データを用いて当該軸受の製造過程及び製品特性の少なくともいずれかを管理可能とすることにある。 Thus, the present invention has been devised in view of the above points, and the problem to be solved by the present invention is that the identification data is not erased by rubbing, and is in a relatively short time. It is to be possible to be engraved on the end face of the inner ring or outer ring of the bearing.
Further, the identification data is engraved at a preferable process position in the bearing manufacturing process.
Further, another object of the present invention is to make it possible to manage at least one of the manufacturing process and product characteristics of the bearing by using the identification data engraved on the bearing.

上記課題を解決するため、本発明は次の手段をとる。
先ず、本発明に係る軸受は、第一軌道輪と、第二軌道輪と、該第一軌道輪と第二軌道輪との間に介在される転動体とを有する軸受であって、前記第一軌道輪と第二軌道輪とのいずれかの外面に、当該軸受個有の識別データとしての文字や記号等の文字類が刻設され、
該文字類の少なくとも一部は前記外面に刻設される複数の凹設、凸設、又は凹設及び凸設からなる刻設集合体により形成されるものであり、前記文字類の少なくとも１部を形成する刻設集合体の凹設や凸設の夫々の凹凸形成の深さ、高さ及び直径の組合せが一品毎に異なる組合せ構成とされていることを特徴とする。
なお、かかる構成の軸受において、前記刻設集合体の凹設や凸設の凹凸形成の深さ、高さ、及び直径の組合わせにより特定される種類は２種類であるのが好ましい。 In order to solve the above problems, the present invention takes the following means.
First, a bearing according to the present invention is a bearing having a first race ring, a second race ring, and a rolling element interposed between the first race ring and the second race ring. Characters such as letters and symbols are engraved on the outer surface of either the first ring or the second ring as identification data for the bearing.
At least a part of the characters is formed by a plurality of concave, convex, or engraved aggregates composed of concave and convex formed on the outer surface, and at least a part of the characters The combination of the depth, height, and diameter of each of the concave and convex formations of the engraved assembly that forms the structure is different for each product.
In the bearing having such a configuration, it is preferable that there are two types specified by a combination of the depth, height, and diameter of the concave or convex formation of the engraved assembly.

上記した本発明によれば、識別データとしての文字や記号の文字類は、軸受の外面に凹設や凸設により形成されるものであるので、仮に製造工程中に擦れることがあっても、識別データが消去されることがない。
また、文字類は複数の凹設や凸設の刻設集合体により形成されるので、短時間で形成することが可能である。 According to the present invention described above, since the characters and the character of the symbol as identification data are formed by recessing or protruding on the outer surface of the bearing, even if they may be rubbed during the manufacturing process, The identification data is not erased.
In addition, since the characters are formed by a plurality of concave or convex aggregates, it can be formed in a short time.

次に、本発明に係る軸受の製造方法は、上記により軸受に刻設される識別データとしての文字や記号等の文字類の刻設は、当該軸受の製造工程における熱処理工程及び研削工程の前工程として行なわれることを特徴とする。これにより、製造工程中の識別データが刻設された後の工程において、仮に、軸受が生産ラインから欠落することがあっても、識別データにより当該軸受の製造過程を確認することができて、生産ラインに確実に戻すことができる。その際、識別データは熱処理工程及び研削工程で生じる擦れによっても消去されることがないので、これらの工程において軸受が欠落した場合であっても、従来のように当該軸受を破棄するようなことをなくすることができる。   Next, in the bearing manufacturing method according to the present invention, the engraving of characters such as letters and symbols as identification data engraved on the bearing is performed before the heat treatment process and the grinding process in the bearing manufacturing process. It is performed as a process. Thereby, in the process after the identification data in the manufacturing process is engraved, even if the bearing may be missing from the production line, the manufacturing process of the bearing can be confirmed by the identification data, It can be reliably returned to the production line. At that time, the identification data is not erased even by rubbing that occurs in the heat treatment process and grinding process, so even if the bearing is missing in these processes, the bearing should be discarded as before. Can be eliminated.

更に、本発明に係る軸受の管理方法は、上記により軸受に刻設された識別データを用いて当該軸受自体の製造過程及び製品特性の少なくともいずれかを特定することにある。当該軸受は一品毎に異なる識別データが付されており、この識別データから当該軸受の製造過程及び製品特性の少なくともいずれかを把握する管理を容易に行うことができる。   Furthermore, the bearing management method according to the present invention is to identify at least one of the manufacturing process and product characteristics of the bearing itself using the identification data carved in the bearing as described above. Different identification data is attached to each bearing, and management for grasping at least one of the manufacturing process and product characteristics of the bearing from the identification data can be easily performed.

本発明は、上記した手段としたことにより、識別データが擦れにより消去されることがなく、かつ、比較的短時間で軸受の外面に刻設することができる。これにより確実に識別データを把握することが可能となって、仮に、市場で不具合品が発生した場合にも、製造条件を特定できるため、迅速、適確に不具合品の回収が可能となる。
また、識別コードの刻設を、当該軸受の製造工程における熱処理工程及び研削工程の前工程として行なうことにより、仮に、熱処理工程や研削工程で軸受が製造ラインから外れても、当該軸受の製造過程が識別コードで把握できることから、ラインに戻すことが可能となる。
更には、当該軸受に刻設された識別データを用いて当該軸受の製造過程及び製品特性の少なくともいずれかを特定する管理をすることが出来る。 The present invention employs the above-described means, so that the identification data is not erased by rubbing and can be engraved on the outer surface of the bearing in a relatively short time. As a result, the identification data can be surely grasped, and even if a defective product occurs in the market, the manufacturing conditions can be specified, so that the defective product can be quickly and accurately collected.
In addition, by performing engraving of the identification code as a pre-process of the heat treatment process and the grinding process in the manufacturing process of the bearing, even if the bearing is removed from the production line in the heat treatment process or the grinding process, the manufacturing process of the bearing Can be grasped by the identification code, it is possible to return to the line.
Furthermore, it is possible to manage to specify at least one of the manufacturing process and product characteristics of the bearing using the identification data engraved in the bearing.

本実施形態の軸受を一部破断して示す斜視図である。It is a perspective view which shows a partially broken bearing of the present embodiment. 端面に文字類を刻印した外輪を示す斜視図である。It is a perspective view which shows the outer ring | wheel which engraved characters on the end surface. 文字類を点字で表した例を示す図である。It is a figure which shows the example which represented the character class by Braille. 図３のIV―IV線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 軸受の製造工程図である。It is a manufacturing-process figure of a bearing.

以下、本発明の実施形態を図面を用いて説明する。
図１は本実施形態の軸受１０を示す。この軸受はテーパローラ型軸受を示している。しかし、本発明が適用される軸受１０はかかる型式の軸受に限定されるものではない。
図１に示す軸受１０は、相対的に径方向内方側に配設される内輪１２と、相対的に径方向外方に配設される外輪１４と、この内輪１２と外輪１４との間に介在されるテーパローラである転動体１６とを有する構成である。なお、転動体１６は保持器１８により保持されて構成される。この本実施形態における内輪１２が本発明の第一軌道輪に対応し、外輪１４が本発明の第二軌道輪に対応する。
軸受１０には個々の軸受の製造過程等を示す識別データ２０が付される。識別データ２０は、例えば、製造国２０Ａ、製造会社２０Ｂ、製造ライン番号（製造工場）、製造番号（シリアル番号）、製造年月日記号、各種社内規格コードがある。識別データ２０の表示方法としては文字や記号等の文字類が用いられる。
識別データ２０としての文字類は、軸受１０の内輪１２及び外輪１４の軸方向端面の何れかの面（外面）に付される。本実施形態では、図１及び図２に示すように外輪１４の端面１４Ａに付された製造国２０Ａの「JAPAN」や製造会社２０Ｂの「KXY」の文字が識別データ２０である。
図３に「KXY」の文字の「Ｋ」を代表で示すように各文字は点字で形成される。この点字は、図４に示すように、複数の凹設２２の刻設集合体により形成される。この凹設２２の形成方法（マーキング工法）は、レーザ、打刻、ドット加工等がある。なお、レーザは具体的には短パルスレーザによる深刻マーキング工法であり、短時間でマーキングが可能であり、擦れにより消去されにくいものである。そして、この識別データ２０の文字自体の表示内容により製造国２０Ａや製造会社２０Ｂを示すことができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a bearing 10 of the present embodiment. This bearing is a tapered roller type bearing. However, the bearing 10 to which the present invention is applied is not limited to such a type of bearing.
A bearing 10 shown in FIG. 1 includes an inner ring 12 that is disposed relatively radially inward, an outer ring 14 that is disposed relatively radially outward, and a space between the inner ring 12 and the outer ring 14. It has the structure which has the rolling element 16 which is a taper roller interposed in this. The rolling element 16 is configured to be held by a cage 18. In this embodiment, the inner ring 12 corresponds to the first track ring of the present invention, and the outer ring 14 corresponds to the second track ring of the present invention.
Identification data 20 indicating the manufacturing process of each bearing is attached to the bearing 10. The identification data 20 includes, for example, a manufacturing country 20A, a manufacturing company 20B, a manufacturing line number (manufacturing factory), a manufacturing number (serial number), a manufacturing date symbol, and various in-house standard codes. As a method for displaying the identification data 20, characters such as characters and symbols are used.
Characters as the identification data 20 are attached to any surface (outer surface) of the axial end surfaces of the inner ring 12 and the outer ring 14 of the bearing 10. In this embodiment, as shown in FIGS. 1 and 2, the characters “JAPAN” of the manufacturing country 20 </ b> A and “KXY” of the manufacturing company 20 </ b> B attached to the end surface 14 </ b> A of the outer ring 14 are the identification data 20.
In FIG. 3, each character is formed of braille as representatively represented by “K” of the character “KXY”. As shown in FIG. 4, the braille is formed by an engraved assembly of a plurality of recesses 22. Examples of the method for forming the recess 22 (marking method) include laser, engraving, and dot processing. The laser is specifically a serious marking method using a short pulse laser, can be marked in a short time, and is not easily erased by rubbing. And the manufacturing country 20A and the manufacturing company 20B can be shown by the display content of the character itself of this identification data 20.

次に、点字を形成する凹設２２の形成深さや径の大きさ、又は相互の位置関係を変えて組合わせることにより、軸受固有の表示を行なうことができる。例えば、本実施形態では、軸受の製造番号（シリアル番号）をコード化して表示している。本実施形態では、凹設２２の形成深さを、深穴２２Ａと浅穴２２Ｂの２パターンで形成し、これを軸受一品毎に異なる組合わせとしてコード化している。本実施形態では、図３に示す「Ｋ」の文字は、３２個の凹設２２からなる点字で形成されているので、凹設２２の深さの２パターンを各種組合わせると約４３億種類のデータを得ることができ、シリアル番号として十分用いることができる。本実施形態の文字「Ｋ」の上下幅の長さは約２．０ｍｍであり、「Ｋ」の点字を形成する１個の凹設２２の穴径の大きさは約０．１〜０．１５ｍｍである。また、凹設２２の深穴２２Ａの深さは約０．３ｍｍ、浅穴２２Ｂの深さは０．２ｍｍである。
その他の文字についても、同様にして形成することにより大きなデータ量を識別表示することが可能であり、各種の社内規格の識別データにもコード化して用いることができる。
なお、シリアル番号等のコード化した点字の読み取りは、ＣＣＤカメラなどによる画像認識やレーザ変位計などにより読み取りを行なうことができる。すなわち、本実施形態の場合には、図３に示す「Ｋ」の点字を形成する３２個の凹部の深さや位置関係をＣＣＤカメラやレーザ変位計でセンシングすることにより、シリアル番号のデータに変換することができて、当該軸受のシリアル番号を把握することができる。 Next, the bearing-specific display can be performed by changing the formation depth and diameter size of the recesses 22 forming Braille or changing the mutual positional relationship. For example, in the present embodiment, the manufacturing number (serial number) of the bearing is coded and displayed. In the present embodiment, the formation depth of the recess 22 is formed by two patterns of the deep hole 22A and the shallow hole 22B, and these are coded as different combinations for each bearing. In the present embodiment, the letter “K” shown in FIG. 3 is formed by braille consisting of 32 recesses 22, so there are approximately 4.3 billion types of combinations of two patterns of depth of recesses 22. Can be obtained and can be used sufficiently as a serial number. The length of the vertical width of the letter “K” of this embodiment is about 2.0 mm, and the size of the hole diameter of one recess 22 that forms the braille “K” is about 0.1-0. 15 mm. Further, the depth of the deep hole 22A of the recess 22 is about 0.3 mm, and the depth of the shallow hole 22B is 0.2 mm.
By forming the other characters in the same manner, a large amount of data can be identified and displayed, and can be coded and used for identification data of various in-house standards.
Note that the encoded braille such as a serial number can be read by image recognition using a CCD camera or the like, a laser displacement meter, or the like. That is, in the case of this embodiment, the depth and positional relationship of the 32 recesses forming the “K” braille shown in FIG. 3 are converted into serial number data by sensing with a CCD camera or a laser displacement meter. The serial number of the bearing can be grasped.

次に、図５により軸受１０の製造工程を説明する。本実施形態の軸受１０の製造工程は、（ａ）鍛造工程と、（ｂ）旋削工程と、（ｃ）打刻工程と、（ｄ）熱処理工程と、（ｅ）研削・超仕上工程と、（ｆ）組立・最終検査工程が、通常この順序で行われる。なお、この製造工程は軸受１０の内輪１２と外輪１４の製造工程であり、転動体１６の製造工程は別の製造工程で行なわれ、（ｆ）の「組立・最終検査工程」で内輪１２と外輪１４との間に組み込まれて組立てられる。なお、本発明の説明において「製造過程」と称するのは、上述した製造工程のごとく、どのような製造工程を経たかの履歴である。
識別データ２０の付与は、（ｃ）の「打刻工程」で行なわれる。本実施形態の場合には、製造国２０Ａの「JAPAN」と製造会社２０Ｂの「KXY」の文字が凹設２２の点字で、外輪１４の端面に刻設される。そして、「Ｋ」の点字を形成する凹設２２の深さを２パターンとして各種組合わせることによりシリアル番号をコード化して表示するものである。
本実施形態における識別データ２０の文字を刻設する（ｃ）の打刻工程は、（ｄ）の熱処理工程や（ｅ）の研削・超仕上工程より前の工程であり、これらの（ｄ）や（ｅ）の工程では、刻設した識別データ２０の文字に擦れが生じるおそれがあるが、識別データ２０の文字は凹設２２の点字で形成されているため、擦れによって消去されることがない。これによって、仮に、熱処理工程や研削工程で軸受１０が製造ラインから欠落することがあっても、当該軸受の製造過程が識別データ２０で把握できることから、ラインに戻すことが可能となる。 Next, the manufacturing process of the bearing 10 will be described with reference to FIG. The manufacturing process of the bearing 10 of the present embodiment includes (a) a forging process, (b) a turning process, (c) a stamping process, (d) a heat treatment process, (e) a grinding / super finishing process, (F) The assembly / final inspection process is usually performed in this order. This manufacturing process is a manufacturing process of the inner ring 12 and the outer ring 14 of the bearing 10, and the manufacturing process of the rolling elements 16 is performed in a separate manufacturing process. In the “assembly / final inspection process” of FIG. It is assembled and assembled with the outer ring 14. In the description of the present invention, what is referred to as “manufacturing process” is a history of what manufacturing process has passed as in the manufacturing process described above.
The identification data 20 is given in the “stamping step” of (c). In the case of the present embodiment, the characters “JAPAN” of the manufacturing country 20A and “KXY” of the manufacturing company 20B are engraved on the end face of the outer ring 14 with the Braille 22 in the concave shape. The serial number is coded and displayed by combining various combinations of the depths of the recesses 22 forming the braille “K” in two patterns.
The engraving process of (c) which engraves the characters of the identification data 20 in this embodiment is a process prior to the heat treatment process of (d) and the grinding / superfinishing process of (e), and these (d) In the step (e), there is a possibility that the engraved characters of the identification data 20 may be rubbed. However, since the characters of the identification data 20 are formed by the braille 22 in the concave shape, they may be erased by rubbing. Absent. As a result, even if the bearing 10 is missing from the production line in the heat treatment process or grinding process, the manufacturing process of the bearing can be grasped by the identification data 20, so that it can be returned to the line.

上記実施形態で形成された識別データ２０が刻設された軸受１０によれば、当該識別データ２０によりその後の取り扱いの管理をすることができる。例えば、識別データ２０として、製造国２０Ａ、製造会社２０Ｂ、製造ライン、シリアル番号等が付与されていることにより、軸受１０に不具合が生じた時に当該軸受１０の製造過程や製品特性等を特定することができる。このため、例えば、市場不具合が発生した場合に熱処理の条件や加工ラインのロット範囲を正確に把握することができ、その対策を容易に行うことができる。なお、本発明の説明において「製品特性」とは、回転トルク等の性能や、隙間等の品質である。
特に、本実施形態の場合には、識別コードの文字類の形成が凹設２２の刻設集合体により形成されており、擦れにより消去されることがないため、識別データ２０の付与を軸受１０の製造工程における早い段階で付与することができて、製造工程の早い段階から管理状態とすることができる。 According to the bearing 10 in which the identification data 20 formed in the above embodiment is engraved, the subsequent handling can be managed by the identification data 20. For example, the manufacturing country 20A, the manufacturing company 20B, the manufacturing line, the serial number, and the like are given as the identification data 20, thereby specifying the manufacturing process, product characteristics, and the like of the bearing 10 when a failure occurs in the bearing 10. be able to. For this reason, for example, when a market failure occurs, the heat treatment conditions and the lot range of the processing line can be accurately grasped, and the countermeasures can be easily taken. In the description of the present invention, “product characteristics” refers to performance such as rotational torque and quality such as gaps.
In particular, in the case of the present embodiment, since the formation of the characters of the identification code is formed by the engraved assembly of the concave portions 22 and is not erased by rubbing, the identification data 20 is given to the bearing 10. It can be given at an early stage in the manufacturing process, and can be brought into a controlled state from an early stage of the manufacturing process.

以上、本発明の実施形態について説明したが、本発明はその他各種の形態で実施できるものである。
例えば、上記実施形態の識別データが付される軸受の種類は、テーパローラ型に限らない。一般的な転がり軸受のほか、スラスト軸受等にも適用可能なものである。
また、識別データの文字類を形成する点字の刻設集合体は、上記実施形態では凹設であったが、凸設であってもよい。また、凹設と凸設を組合わせるものであってもよい。
また、上記実施形態の凹設の深さの種類は２パターンであったが、３パターン或いはそれ以上であってもよい。必要とする数量に応じて選定すればよい。
また、上記実施形態では「Ｋ」の１文字のみを２パターンの凹設するものであったが、その他の文字についても同様に形成するものであってもよい。これも必要とする数量に応じて選定すればよい。 As mentioned above, although embodiment of this invention was described, this invention can be implemented with another various form.
For example, the type of bearing to which the identification data of the above embodiment is attached is not limited to the tapered roller type. In addition to general rolling bearings, it can also be applied to thrust bearings and the like.
In addition, the braille engraving aggregate forming the characters of the identification data is concave in the above embodiment, but may be convex. Moreover, you may combine concave and convex.
Moreover, although the kind of the recessed depth of the said embodiment was 2 patterns, 3 patterns or more may be sufficient. Select according to the quantity required.
In the above-described embodiment, only one character “K” is provided in two patterns, but other characters may be formed in the same manner. This may be selected according to the quantity required.

１０ 軸受
１２ 内輪
１４ 外輪
１６ 転動体
１８ 保持器
２０ 識別データ
２０Ａ 製造国
２０Ｂ 製造会社
２２ 凹設
２２Ａ 深穴
２２Ｂ 浅穴
DESCRIPTION OF SYMBOLS 10 Bearing 12 Inner ring 14 Outer ring 16 Rolling body 18 Cage 20 Identification data 20A Country of manufacture 20B Manufacturing company 22 Concave 22A Deep hole 22B Shallow hole

上記課題を解決するため、本発明は次の手段をとる。
先ず、本発明に係る軸受は、第一軌道輪と、第二軌道輪と、該第一軌道輪と第二軌道輪との間に介在される転動体とを有する軸受であって、前記第一軌道輪と第二軌道輪とのいずれかの外面に、当該軸受個有の識別データとしての文字や記号等の文字類が刻設され、
該文字類の少なくとも一部は前記外面に刻設される複数の凹設、凸設、又は凹設及び凸設からなる刻設集合体により形成されるものであり、前記文字類の少なくとも１部を形成する刻設集合体の凹設や凸設の夫々の凹凸形成の深さ、高さ及び直径の組合せが一品毎に異なる組合せ構成とされていることを特徴とする。
なお、上述の構成の軸受において、前記文字類の少なくとも一部は前記外面に刻設される複数の凹設からなる刻設集合体により形成されるものであり、前記文字類の少なくとも一部を形成する刻設集合体の凹設の深さの組合せが一品毎に異なる組合せ構成とされているのが好ましく、更に、その刻設集合体の凹設の深さの種類は２種類であるのが好ましい。
また、上述の構成の軸受において、前記刻設集合体の凹設や凸設の凹凸形成の深さ、高さ、及び直径の組合わせにより特定される種類は２種類であるのが好ましい。
In order to solve the above problems, the present invention takes the following means.
First, a bearing according to the present invention is a bearing having a first race ring, a second race ring, and a rolling element interposed between the first race ring and the second race ring. Characters such as letters and symbols are engraved on the outer surface of either the first ring or the second ring as identification data for the bearing.
At least a part of the characters is formed by a plurality of concave, convex, or engraved aggregates composed of concave and convex formed on the outer surface, and at least a part of the characters The combination of the depth, height, and diameter of each of the concave and convex formations of the engraved assembly that forms the structure is different for each product.
In the bearing having the above-described configuration, at least a part of the characters is formed by an engraved assembly including a plurality of recesses formed on the outer surface, and at least a part of the characters is It is preferable that the combination of the recessed depths of the engraved assembly to be formed is different for each product, and there are two types of recessed depths of the engraved assembly. Is preferred.
Further, in the bearing having the above-described configuration, it is preferable that the types specified by the combination of the depth, height, and diameter of the concave and convex formation of the engraved assembly are two types.

Claims (4)

第一軌道輪と、第二軌道輪と、該第一軌道輪と第二軌道輪との間に介在される転動体とを有する軸受であって、
前記第一軌道輪と第二軌道輪とのいずれかの外面に、当該軸受個有の識別データとしての文字や記号等の文字類が刻設され、
該文字類の少なくとも一部は前記外面に刻設される複数の凹設、凸設、又は凹設及び凸設からなる刻設集合体により形成されるものであり、
前記文字類の少なくとも一部を形成する刻設集合体の凹設や凸設の夫々の凹凸形成の深さ、高さ及び直径の組合せが一品毎に異なる組合せ構成とされていることを特徴とする軸受。 A bearing having a first race ring, a second race ring, and a rolling element interposed between the first race ring and the second race ring,
Characters such as letters and symbols are engraved on the outer surface of either the first race ring or the second race ring as identification data for the bearing.
At least a part of the characters is formed by a plurality of concave, convex, or engraved aggregates composed of concave and convex on the outer surface,
The combination of the depth, height, and diameter of the concave and convex formations of the engraved assembly forming at least a part of the characters is different for each product. Bearing. 請求項１に記載の軸受であって、
前記刻設集合体の凹設や凸設の凹凸形成の深さ、高さ、及び直径の組合わせにより特定される種類は２種類であることを特徴とする軸受。 The bearing according to claim 1,
There are two types of bearings specified by a combination of the depth, height, and diameter of the concave and convex formation of the engraved assembly. 請求項１又は請求項２に記載の軸受に刻設される識別データとしての文字や記号等の文字類の刻設は、当該軸受の製造工程における熱処理工程及び研削工程の前工程として行なわれることを特徴とする軸受の製造方法。   Engraving of characters such as letters and symbols as identification data engraved on the bearing according to claim 1 or 2 is performed as a pre-process of a heat treatment step and a grinding step in the manufacturing process of the bearing. A method of manufacturing a bearing characterized by the above. 請求項１又は請求項２に記載された軸受に刻設された識別データを用いて当該軸受自体の製造過程及び製品特性の少なくともいずれかを特定する軸受の管理方法。
A bearing management method for specifying at least one of a manufacturing process and product characteristics of the bearing itself using identification data engraved in the bearing according to claim 1.
JP2013199428A 2013-09-26 2013-09-26 Bearing, bearing manufacturing method, and bearing management method Active JP6311255B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013199428A JP6311255B2 (en) 2013-09-26 2013-09-26 Bearing, bearing manufacturing method, and bearing management method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013199428A JP6311255B2 (en) 2013-09-26 2013-09-26 Bearing, bearing manufacturing method, and bearing management method

Publications (2)

Publication Number Publication Date
JP2015064092A true JP2015064092A (en) 2015-04-09
JP6311255B2 JP6311255B2 (en) 2018-04-18

Family

ID=52832137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013199428A Active JP6311255B2 (en) 2013-09-26 2013-09-26 Bearing, bearing manufacturing method, and bearing management method

Country Status (1)

Country Link
JP (1) JP6311255B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020158367A1 (en) * 2019-01-28 2020-08-06 日本精工株式会社 Bearing component, bearing, machine, vehicle, individual identification method for bearing component, manufacturing method for bearing, manufacturing method for machine, and manufacturing method for vehicle

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122022U (en) * 1982-02-15 1983-08-19 日本精工株式会社 Sealed rolling bearing with identification mark
JPH022841U (en) * 1988-06-15 1990-01-10
JPH0520332U (en) * 1991-08-20 1993-03-12 関西日本電気株式会社 Electronic parts
JP2002227863A (en) * 2001-02-06 2002-08-14 Koyo Seiko Co Ltd Bearing
JP2006228966A (en) * 2005-02-17 2006-08-31 Tokyo Electron Ltd Plasma treatment apparatus, its component, and lifetime detecting method of component
JP2006342870A (en) * 2005-06-08 2006-12-21 Ntn Corp Angular contact ball bearing
JP2007131901A (en) * 2005-11-09 2007-05-31 Ntn Corp Continuous production line for mechanical component having annular piece built in
JP2007191203A (en) * 2006-01-20 2007-08-02 Nsk Ltd Covering method for roll bearing
JP2009141126A (en) * 2007-12-06 2009-06-25 Elpida Memory Inc Semiconductor device and method of manufacturing the same
JP2010070274A (en) * 2008-09-16 2010-04-02 Nsk Ltd Method of managing transported article

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122022U (en) * 1982-02-15 1983-08-19 日本精工株式会社 Sealed rolling bearing with identification mark
JPH022841U (en) * 1988-06-15 1990-01-10
JPH0520332U (en) * 1991-08-20 1993-03-12 関西日本電気株式会社 Electronic parts
JP2002227863A (en) * 2001-02-06 2002-08-14 Koyo Seiko Co Ltd Bearing
JP2006228966A (en) * 2005-02-17 2006-08-31 Tokyo Electron Ltd Plasma treatment apparatus, its component, and lifetime detecting method of component
JP2006342870A (en) * 2005-06-08 2006-12-21 Ntn Corp Angular contact ball bearing
JP2007131901A (en) * 2005-11-09 2007-05-31 Ntn Corp Continuous production line for mechanical component having annular piece built in
JP2007191203A (en) * 2006-01-20 2007-08-02 Nsk Ltd Covering method for roll bearing
JP2009141126A (en) * 2007-12-06 2009-06-25 Elpida Memory Inc Semiconductor device and method of manufacturing the same
JP2010070274A (en) * 2008-09-16 2010-04-02 Nsk Ltd Method of managing transported article

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020158367A1 (en) * 2019-01-28 2020-08-06 日本精工株式会社 Bearing component, bearing, machine, vehicle, individual identification method for bearing component, manufacturing method for bearing, manufacturing method for machine, and manufacturing method for vehicle
CN113167318A (en) * 2019-01-28 2021-07-23 日本精工株式会社 Bearing member, bearing, machine, vehicle, method for identifying individual bearing member, method for manufacturing bearing, method for manufacturing machine, and method for manufacturing vehicle
EP3904713A4 (en) * 2019-01-28 2022-02-09 NSK Ltd. Bearing component, bearing, machine, vehicle, individual identification method for bearing component, manufacturing method for bearing, manufacturing method for machine, and manufacturing method for vehicle
US11699052B2 (en) 2019-01-28 2023-07-11 Nsk Ltd. Bearing component, bearing, machine, vehicle, individual identification method for bearing component, manufacturing method for bearing, manufacturing method for machine, and manufacturing method for vehicle
CN113167318B (en) * 2019-01-28 2024-02-02 日本精工株式会社 Bearing member, bearing, machine, vehicle, individual identification method for bearing member, manufacturing method for bearing, manufacturing method for machine, and manufacturing method for vehicle

Also Published As

Publication number Publication date
JP6311255B2 (en) 2018-04-18

Similar Documents

Publication Publication Date Title
CN102811834B (en) Amendment is utilized wherein to form the method for the sequence mark metal part surface of mark segments
TWI632511B (en) Products and methods with management information
CN102770277B (en) Method of manufacturing a bearing component
JP6311255B2 (en) Bearing, bearing manufacturing method, and bearing management method
JP2008248912A (en) Method for manufacturing outer ring of self-aligning bearing
JP6306326B2 (en) Needle roller bearing with double row cage
JP6209919B2 (en) Bearing, bearing management method, and bearing manufacturing method
JP2006342870A (en) Angular contact ball bearing
US20120048929A1 (en) Multi-purpose appendable marking method
JP2002227863A (en) Bearing
CN101320533A (en) Anti-fake marker and manufacturing method thereof
DE102019130099A1 (en) COMBUSTION ENGINE COMPONENT AND METHOD FOR PRODUCING AN INTERNAL COMBUSTION ENGINE COMPONENT
JP2021167672A5 (en) Production control method for bearing parts, bearing manufacturing method, machine manufacturing method, and vehicle manufacturing method
JP5564339B2 (en) Metal mask for engraving by sandblasting
US20150352643A1 (en) Material to be worked in face driving and method for working the same
US20110215534A1 (en) Piston ring for an internal combustion engine
JP4678175B2 (en) Wheel bearing device
JP2007102254A (en) Method of marking contact lens and contact lens
JP2006250189A (en) Retainer and rolling bearing
CN205401433U (en) Self -lubricating bearing suitable for slow rotating
JP2005076887A (en) Shaft comprising optically-encoding ring and process for manufacturing this shaft
CN116137826A (en) Method for marking a steel strip and steel strip with a plurality of markings
JP2005163926A (en) Method of manufacturing bearing raceway member
JP2007325686A (en) Pachinko ball traceability method
JP2023095154A (en) Pipe, pipe manufacturing method, and pipe control number acquisition device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160809

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170413

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170502

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170616

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20171003

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171122

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: 20180220

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180305

R150 Certificate of patent or registration of utility model

Ref document number: 6311255

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150