JP2884711B2 - Bearing bore machining equipment - Google Patents

Bearing bore machining equipment

Info

Publication number
JP2884711B2
JP2884711B2 JP2144723A JP14472390A JP2884711B2 JP 2884711 B2 JP2884711 B2 JP 2884711B2 JP 2144723 A JP2144723 A JP 2144723A JP 14472390 A JP14472390 A JP 14472390A JP 2884711 B2 JP2884711 B2 JP 2884711B2
Authority
JP
Japan
Prior art keywords
sleeve
roller
inner diameter
motor
diameter
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.)
Expired - Fee Related
Application number
JP2144723A
Other languages
Japanese (ja)
Other versions
JPH0437418A (en
Inventor
正人 森本
隆文 浅田
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2144723A priority Critical patent/JP2884711B2/en
Priority to DE91108797T priority patent/DE69100646T2/en
Priority to EP91108797A priority patent/EP0460527B1/en
Priority to KR1019910008850A priority patent/KR950001808B1/en
Publication of JPH0437418A publication Critical patent/JPH0437418A/en
Priority to US07/944,031 priority patent/US5247819A/en
Application granted granted Critical
Publication of JP2884711B2 publication Critical patent/JP2884711B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • B24B39/023—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution the working tool being composed of a plurality of working rolls or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Forging (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 近年、事務機器および民生機器等に使われる軸受は高
速、高精度化しており、動圧型の流体軸受や、精度の良
い滑り軸受の必要性が高まっている。本発明は、これら
高精度な軸受のスリーブの内径の円筒度、表面粗さ等の
精度を従来一般的に加工中に傷の発生が多かった研磨加
工を行わずして、塑性加工により高精度に加工するため
の軸受内径加工装置に関する。DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICABILITY In recent years, bearings used in office equipment and consumer equipment have become faster and more precise, and the need for hydrodynamic fluid bearings and high-precision sliding bearings has increased. ing. In the present invention, the precision such as the cylindricity of the inner diameter of the sleeve of these high-precision bearings and the surface roughness are conventionally improved by plastic working without polishing, which often generates scratches during processing. TECHNICAL FIELD The present invention relates to a bearing inner diameter processing device for processing into a bearing.

従来の技術 従来から軸受内径の塑性加工を応用した仕上げ加工に
は、ピンを押し通すピンサイジングと呼ばれる方法、そ
して第５図から第７図に示すようなローラを回転しなが
ら押し通すローラパニシングと呼ばれる方法等が知られ
ている。2. Description of the Related Art Conventionally, a finishing process applying plastic working of a bearing inner diameter is referred to as a method called pin sizing in which a pin is pushed through, and a roller punishing in which a roller as shown in FIGS. Methods and the like are known.

以下図面を参照しながら、上述した従来の軸受内径加
工装置の一例について説明する。第５図は従来の軸受加
工装置の断面図である。11はローラガイドであり複数個
のガイド溝11aにローラ12を回転自在に填め合わせてい
る。11,12で加工具14を構成する。13は被加工物となる
スリーブである。Hereinafter, an example of the conventional bearing inner diameter processing device described above will be described with reference to the drawings. FIG. 5 is a sectional view of a conventional bearing processing device. A roller guide 11 rotatably fits a roller 12 into a plurality of guide grooves 11a. The processing tool 14 is composed of 11,12. Reference numeral 13 denotes a sleeve to be processed.

以上のように構成された軸受内径加工装置について、
以下の動作について説明する。まず、スリーブ13が図示
しない加工台にセットされると、上方から加工具14が回
転しながらスリーブ13の内径に向かって下りてくる。こ
の時加工具14は複数のローラ12の外周円がスリーブの内
径よりも数ミクロンから数十ミクロン大きく、設計され
ており回転しながらスリーブ13の内径を押し通ることに
よりスリーブに塑性変形が起こりほぼ、必要な内径寸法
と表面粗さが得られるものである。About the bearing inner diameter processing device configured as above,
The following operation will be described. First, when the sleeve 13 is set on a processing table (not shown), the processing tool 14 descends toward the inner diameter of the sleeve 13 while rotating from above. At this time, the processing tool 14 is designed such that the outer circumference of the plurality of rollers 12 is several microns to several tens of microns larger than the inner diameter of the sleeve, and the sleeve is plastically deformed by pushing through the inner diameter of the sleeve 13 while rotating. The required inner diameter and surface roughness can be obtained.

発明が解決しようとする課題 しかしながら上記のような構成では、次の様な問題点
がある。即ち、塑性加工を行う場合第７図に示すように
穴の両端は変形が起こり易いために、必ず、図中の円筒
度δが数ミクロンの鼓状の内径形状になる傾向があっ
た。また塑性加工前のスリーブ４の内径寸法に例えば、
20ミクロンのばらつきがあると塑性加工後も10ないし15
ミクロンのばらつきは、残ってしまうので、従来、この
ようなスリーブを用いた滑り軸受はラジアル振れが多
く、量産での性能ばらつきも多かった。Problems to be Solved by the Invention However, the above configuration has the following problems. That is, when plastic working is performed, as shown in FIG. 7, both ends of the hole are likely to be deformed, so that the cylindricity δ in the figure always tends to have a drum-shaped inner diameter of several microns. Also, for example, the inner diameter of the sleeve 4 before plastic working is
20-micron variation, 10-15 even after plastic working
Since a micron variation remains, a sliding bearing using such a sleeve conventionally has a large radial runout and a large performance variation in mass production.

本発明は、上記問題点に鑑み、軸受スリーブの内径精
度と円筒度を向上させる加工法を得るものである。The present invention has been made in view of the above problems and provides a processing method for improving the inner diameter accuracy and cylindricity of a bearing sleeve.

課題を解決するための手段 上記問題点を解決するために本発明の軸受内径加工装
置は、内径の塑性加工中に加工具のローラ外接径を変化
させる手段を有すると共に、加工具の軸方向の送り荷重
の検出手段を有するものである。Means for Solving the Problems In order to solve the above problems, the bearing inner diameter machining apparatus of the present invention has a means for changing the roller circumscribed diameter of the working tool during plastic working of the inner diameter, and the axial direction of the working tool. It has a feed load detecting means.

作用 本発明は、上記した構成によって、加工中に加工具の
ローラ外接径を変化させることによりスリーブの円筒度
を良好にできると共に、加工具の軸方向の送り荷重の検
出により下穴の内径寸法を求めこの検出値によりローラ
外接径を調整することにより、内径仕上がり寸法のばら
つきを小さくできる。Action The present invention can improve the cylindricity of the sleeve by changing the roller circumscribed diameter of the processing tool during the processing, and can detect the feed load in the axial direction of the processing tool by the above-described configuration, and can measure the inner diameter of the pilot hole by detecting the axial feed load of the processing tool. By adjusting the outer diameter of the roller based on the detected value, it is possible to reduce the variation in the finished dimension of the inner diameter.

実施例 以下本発明の一実施例の軸受内径加工装置について、
第１図〜第４図を参照しながら説明する。Example Hereinafter, a bearing inner diameter processing device of one embodiment of the present invention,
This will be described with reference to FIGS.

第１図において、１は複数のガイド溝を有するローラ
ガイドであり、ガイド溝にはローラ２が挿入されてい
る。３はその１部にテーパ部を有するテーパピンであり
ローラ２の転動中心になると共にローラガイド１に対し
て図中ＳおよびＬ方向に出入りしローラ２の外接円を調
整可能としている。In FIG. 1, reference numeral 1 denotes a roller guide having a plurality of guide grooves, and a roller 2 is inserted into the guide groove. Reference numeral 3 denotes a taper pin having a tapered portion at one portion, which serves as a rolling center of the roller 2 and moves in and out of the roller guide 1 in the S and L directions in the drawing so that the circumscribed circle of the roller 2 can be adjusted.

1,2,3で加工具10を構成している。４は被加工物とな
るスリーブである。第４図において５は基台、６は基台
に取り付けられ、送りネジ6aを有し、スライダー部1bと
かみ合って、ローラガイド１とスリーブ４の距離を変え
るための第１のモータである。７はスリーブ４またはロ
ーラガイド１のいずれかを回転させるための第２のモー
タであり、7aはスリーブを固定するためのチャック、８
はテーパピンを出入りさせるための第３のモータ、９は
加工具10のローラ２をスリーブ内径に押し通す時の軸方
向荷重を検出するための荷重センサである。以上のよう
に構成された軸受内径加工装置について、第１図〜第４
図を用いてその動作を説明する。第４図において、第２
のモータ７がスリーブ４を回転させ、第１のモータ６に
より加工具10がスリーブ４の内径に押し入れられると、
スリーブ４の内径は広げられると共に、表面粗さは良好
に加工される。1, 2, and 3 constitute the processing tool 10. Reference numeral 4 denotes a sleeve to be processed. In FIG. 4, reference numeral 5 denotes a base, and reference numeral 6 denotes a first motor which is attached to the base, has a feed screw 6a, and engages with the slider portion 1b to change the distance between the roller guide 1 and the sleeve 4. Reference numeral 7 denotes a second motor for rotating either the sleeve 4 or the roller guide 1; 7a, a chuck for fixing the sleeve;
Is a third motor for moving the taper pin in and out, and 9 is a load sensor for detecting an axial load when the roller 2 of the processing tool 10 is pushed through the inner diameter of the sleeve. FIGS. 1 to 4 show the bearing inner diameter machining apparatus configured as described above.
The operation will be described with reference to the drawings. In FIG.
When the motor 7 rotates the sleeve 4 and the processing tool 10 is pushed into the inner diameter of the sleeve 4 by the first motor 6,
The inner diameter of the sleeve 4 is widened, and the surface roughness is processed well.

この加工中に第３のモータがテーパピン３の出し入れ
を行い、ローラ２の外接円直径を可変とし、スリーブ４
内径の両端近傍を加工するときは外接円直径を小さく、
その他の時は外接円直径は大きく調整することにより、
第３図の４の示すように良好な円筒度のスリーブが加工
可能となる。During this processing, the third motor moves the taper pin 3 in and out, makes the diameter of the circumscribed circle of the roller 2 variable, and
When working near both ends of the inner diameter, reduce the circumscribed circle diameter,
At other times, adjust the circumscribed circle diameter to a large value.
As shown at 4 in FIG. 3, a sleeve having good cylindricity can be machined.

さらに第４図において、第３のモータによりテーパピ
ン３の出入りを調整してローラ２の外接円直径をある一
定の寸法とし、その状態で第１のモータ６により、加工
具10をスリーブ内径に押し入れる。そして、その時の挿
入荷重を荷重センサ９により検出し、この検出値からス
リーブ４の内径寸法を求め、次に、望まれる内径寸法に
仕上げるための、必要な塑性加工量と、加工中のローラ
外接円直径の決定する。次に、第３のモータ８により、
ローラ外接円直径を、変化させながら第１と、第２のモ
ータを駆動しながら、スリーブ４の内径を望まれる直径
に、かつ良好な円筒度に加工を行う。Further, in FIG. 4, the taper pin 3 is adjusted in and out by a third motor so that the diameter of the circumscribed circle of the roller 2 is set to a certain size. In this state, the processing tool 10 is pushed to the inner diameter of the sleeve by the first motor 6. Put in. Then, the insertion load at that time is detected by the load sensor 9, the inner diameter of the sleeve 4 is obtained from the detected value, and the amount of plastic working required to finish the inner diameter of the sleeve 4 is determined. Determine the diameter of the circle. Next, by the third motor 8,
While driving the first and second motors while changing the diameter of the circumscribed roller, the inner diameter of the sleeve 4 is machined to a desired diameter and good cylindricity.

以上のように本実施例によれば、加工具の直径が変え
られることによりスリーブの内径を寸法および円筒度の
精度良く加工することができる。As described above, according to this embodiment, the inner diameter of the sleeve can be machined with high accuracy in terms of size and cylindricity by changing the diameter of the machining tool.

なお、第２のモータはスリーブではなく、ローラガイ
ドを回転させても良い。The second motor may rotate the roller guide instead of the sleeve.

発明の効果 以上のように本発明は、加工具のローラの外接円直径
を加工中に変えるためのモータを有することにより、ス
リーブの直径寸法と円筒度に良好に加工できる軸受内径
加工装置を得ることができる。Effect of the Invention As described above, the present invention provides a bearing inner diameter machining apparatus capable of favorably machining a sleeve to a diameter dimension and a cylindricity by having a motor for changing a circumscribed circle diameter of a roller of a machining tool during machining. be able to.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明の軸受内径加工装置の実施例の断面図、
第２図は第１図のＢ−Ｂ断面図、第３図はスリーブの断
面図、第４図は本発明の内径加工装置の実施例の断面
図、第５図は従来の軸受内径加工装置の断面図、第６図
は第５図のＡ−Ａ断面図、第７図はスリーブの断面図で
ある。 １……ローラガイド、1b……スライダー部、２……ロー
ラ、３……テーパピン、４……スリーブ、５……基台、
６……第１モータ、6a……送りネジ、７……第２モー
タ、7a……チャック、８……第３モータ、９……荷重セ
ンサ、10……加工具。FIG. 1 is a sectional view of an embodiment of a bearing inner diameter machining apparatus of the present invention,
2 is a sectional view taken along the line BB of FIG. 1, FIG. 3 is a sectional view of the sleeve, FIG. 4 is a sectional view of an embodiment of the bore machining apparatus of the present invention, and FIG. 6, FIG. 6 is a sectional view taken along the line AA of FIG. 5, and FIG. 7 is a sectional view of the sleeve. 1 ... roller guide, 1b ... slider part, 2 ... roller, 3 ... taper pin, 4 ... sleeve, 5 ... base,
6 First motor, 6a Feed screw, 7 Second motor, 7a Chuck, 8 Third motor, 9 Load sensor, 10 Processing tool.

フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B21D 3/16,3/14 B21D 39/00 - 39/20 B21D 41/00 - 41/04 Continuation of the front page (58) Field surveyed (Int. Cl. 6 , DB name) B21D 3/16, 3/14 B21D 39/00-39/20 B21D 41/00-41/04

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】テーパピンと前記テーパピンの外周を転動
自在な円筒状またはテーパを有する複数のローラと前記
テーパピンの外周を回転自在に設けられ、前記複数のロ
ーラを収納するガイド溝を有するローラガイドと、前記
ローラに変位を与え、ローラをスリーブに挿入する第１
のモータと、前記スリーブまたはローラガイドのいずれ
か一方を回転させる第２のモータと、前記テーパピンに
軸方向に相対移動を与える第３のモータを有する軸受内
径加工装置。A roller guide having a tapered pin, a plurality of cylindrical or tapered rollers rotatable around the outer periphery of the tapered pin, and a guide groove rotatably provided on the outer periphery of the tapered pin and accommodating the plurality of rollers. A first step of displacing the roller and inserting the roller into the sleeve.
And a second motor for rotating one of the sleeve and the roller guide, and a third motor for relatively moving the tapered pin in the axial direction. 【請求項２】ローラを前記スリーブに押し入れるときの
軸方向荷重の検出手段を有する請求項１記載の軸受内径
加工装置。2. A bearing inner diameter machining apparatus according to claim 1, further comprising means for detecting an axial load when a roller is pushed into said sleeve.
JP2144723A 1990-06-01 1990-06-01 Bearing bore machining equipment Expired - Fee Related JP2884711B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2144723A JP2884711B2 (en) 1990-06-01 1990-06-01 Bearing bore machining equipment
DE91108797T DE69100646T2 (en) 1990-06-01 1991-05-29 Drilling machine.
EP91108797A EP0460527B1 (en) 1990-06-01 1991-05-29 Bore processing device
KR1019910008850A KR950001808B1 (en) 1990-06-01 1991-05-30 Divice for working inner diameter bearing
US07/944,031 US5247819A (en) 1990-06-01 1992-09-11 Bore processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2144723A JP2884711B2 (en) 1990-06-01 1990-06-01 Bearing bore machining equipment

Publications (2)

Publication Number Publication Date
JPH0437418A JPH0437418A (en) 1992-02-07
JP2884711B2 true JP2884711B2 (en) 1999-04-19

Family

ID=15368822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2144723A Expired - Fee Related JP2884711B2 (en) 1990-06-01 1990-06-01 Bearing bore machining equipment

Country Status (4)

Country Link
EP (1) EP0460527B1 (en)
JP (1) JP2884711B2 (en)
KR (1) KR950001808B1 (en)
DE (1) DE69100646T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK174089B1 (en) * 1995-03-30 2002-06-10 Man B & W Diesel As Process for producing a cylinder liner for a piston engine and a cylinder liner
CN110712074B (en) * 2019-10-11 2021-08-17 内蒙古第一机械集团有限公司 Method for repairing spindle taper hole by using self-grinding device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021101A1 (en) * 1980-06-04 1981-12-10 Madison Industries Gmbh, 6078 Neu Isenburg DEVICE FOR SMOOTH ROLLING A CYLINDRICAL WORKPIECE SURFACE WITH A SMOOTH ROLLING TOOL

Also Published As

Publication number Publication date
KR920001097A (en) 1992-01-30
JPH0437418A (en) 1992-02-07
EP0460527B1 (en) 1993-11-18
KR950001808B1 (en) 1995-03-03
DE69100646T2 (en) 1994-03-10
DE69100646D1 (en) 1993-12-23
EP0460527A1 (en) 1991-12-11

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