JPH0713966Y2 - Burnishing tools - Google Patents
Burnishing toolsInfo
- Publication number
- JPH0713966Y2 JPH0713966Y2 JP1987012955U JP1295587U JPH0713966Y2 JP H0713966 Y2 JPH0713966 Y2 JP H0713966Y2 JP 1987012955 U JP1987012955 U JP 1987012955U JP 1295587 U JP1295587 U JP 1295587U JP H0713966 Y2 JPH0713966 Y2 JP H0713966Y2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- burnishing
- workpiece
- processing
- spherical
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 (イ)産業上の利用分野 本考案は内径のバニシング加工具に関し、更に詳細には
内径の変化する加工面でも加工面の面粗さ、真円度を短
時間に精度よくバニシング加工できる工具に関する。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a burnishing tool having an inner diameter, and more specifically, to reduce surface roughness and roundness of a machined surface even in a machined surface having a changing inner diameter in a short time. The present invention relates to a tool capable of accurately burnishing.
(ロ)従来技術 加工品表面に工具に押し付けてすべらせ、表面の小さい
凸部をつぶし、凹部を埋めて、表面を平滑にするいわゆ
るバニシング加工が従来から行なわれている。(B) Conventional Technology A so-called burnishing process has been conventionally performed in which a tool is pressed against the surface of a processed product to cause it to slide, crush small protrusions on the surface, fill recesses, and smooth the surface.
このようなバニシング加工をする従来の工具としては、
第5図に示される構造のものがあるが、この加工具で
は、加工面と接触してその加工面をバニシング加工する
加工部材aが軸方向に長いローラ状になっていてかつそ
の加工部材を押圧するマンドレルbにテーパが付けられ
ていて、これを軸方向に出し入れすることにより、マン
ドレルのテーパに合わせて作られたローラ状加工部材を
押し拡げ、加工穴の内経に合わせるようになっている。As a conventional tool for such burnishing,
Although there is a structure shown in FIG. 5, in this processing tool, the processing member a which comes into contact with the processing surface and burnishes the processing surface is a roller shape which is long in the axial direction, and the processing member is The mandrel b to be pressed has a taper, and by axially inserting and removing the mandrel b, the roller-shaped processing member made according to the taper of the mandrel is expanded to match the inner diameter of the processing hole. There is.
しかしながら、このような従来の工具では加工面の内径
が一定の場合の加工には都合が良いが、第4図のように
内径が軸方向に変化している場合には加工出来ない問題
があった。However, although such a conventional tool is convenient for machining when the inner diameter of the machining surface is constant, there is a problem that machining cannot be performed when the inner diameter changes in the axial direction as shown in FIG. It was
(ハ)発明が解決しようとする問題点 本発明が解決しようとする問題は、バニシング加工具に
おいて、加工面に接触して加工する部材として細長いロ
ーラの代わりに球状の加工体を使用することにより、軸
方向に径の変化する加工面でもそのまま加工できるよう
にすることである。(C) Problems to be Solved by the Invention A problem to be solved by the present invention is that, in a burnishing tool, a spherical processed body is used instead of an elongated roller as a member to be processed in contact with a processing surface. The purpose is to enable machining even on a machined surface whose diameter changes in the axial direction.
(ニ)問題点を解決するための手段 上記問題を解決するため、本考案によるバニシング加工
具は、外周に複数の略円形開口を形成した加工体保持具
と、該開口に面して配設された複数の球状加工体と、該
加工体群の略中央に配設された伝達球体、および押圧部
材とを備え、押圧部材はばねによって押圧される。(D) Means for Solving the Problems In order to solve the above problems, a burnishing tool according to the present invention is provided with a workpiece holder having a plurality of substantially circular openings formed on the outer periphery thereof, and a workpiece holder provided facing the openings. The plurality of spherical processed bodies, the transmission sphere arranged substantially at the center of the processed body group, and the pressing member are provided, and the pressing member is pressed by the spring.
(ホ)作用 上記構造において、バニシング加工具を被加工物である
ワークの穴内に挿入した後、そのバニシング加工具また
はワークを回転する。すると、ばねによって弾圧される
押圧部材は伝達球体を押圧し、該伝達球体は球状加工体
をその分力によって半径方向外側に押出す。これによ
り、球状加工体は個々にワークの被加工面に接して転動
或は滑動し、バニシング加工する。そして加工体が球状
で加工面と点接触するから、内径が変化する場所でも容
易に加工できる。(E) Action In the above structure, after the burnishing tool is inserted into the hole of the workpiece that is the workpiece, the burnishing tool or the workpiece is rotated. Then, the pressing member elastically pressed by the spring presses the transmission sphere, and the transmission sphere pushes the spherical processed body outward in the radial direction by its component force. As a result, the spherically machined body individually rolls or slides in contact with the surface to be machined of the work, and burnishing is performed. Since the work piece is spherical and has point contact with the work surface, it can be easily worked even in a place where the inner diameter changes.
(ヘ)実施例 以下、図面を参照して本考案の一実施例について説明す
る。(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings.
第1図ないし第3図において、本実施例のバニシング加
工具1が示されている。同図において、本実施例のバニ
シング加工具(以下、単に工具と呼ぶ)1は先端(第1
図で左端)が塞がれた中空円筒状の、加工体保持具すな
わちハウジング2を有し、そのハウジングには外周に円
周方向に等間隔に隔てられた複数(この実施例では直径
方向に並べられた二つ)の開口21が閉鎖端に隣接して形
成されている。ハウジング2内には開口に面した位置に
鋼等の硬質の材料でつくられた球状加工体3が挿入され
ている。ハウジング2内には更に、該加工体群の略中央
付近に伝達球体41が配設される。該伝達球体を押圧する
面42が形成された押圧部材4はシャンク5内に軸方向に
移動可能に挿入されている。ハウジング2の後端内には
円筒状のシャンク5が螺合されている。シャンク5はこ
の工具1を使用してバニシング加工する場合にボール
盤、旋盤等の駆動装置(図示せず)又は工具1を固定保
持するホルダ(図示せず)に取り付ける作用をする。シ
ャンク5の一端(第1図で左端)内には押圧部材が滑動
可能に受けられかつ他端内にはばね受け6のねじ部61が
ナット62により位置調整可能に螺合固定されている。シ
ャンク5内には押圧部材4とばね受け6との間に押圧部
材を伝達球体側に押圧するばね7が挿入されている。伝
達球体の押圧力はばね受け6の位置を調節して行う。1 to 3, a burnishing tool 1 of this embodiment is shown. In the figure, a burnishing tool (hereinafter, simply referred to as a tool) 1 of the present embodiment has a tip (first tool).
A hollow cylindrical work piece holder, that is, a housing 2 is closed at the left end in the figure, and a plurality of (in this embodiment, in the diametrical direction) circumferentially equidistantly provided on the outer periphery of the work piece holder. Two aligned openings 21 are formed adjacent the closed end. A spherical processed body 3 made of a hard material such as steel is inserted into the housing 2 at a position facing the opening. In the housing 2, a transmission sphere 41 is further arranged near the center of the processed body group. The pressing member 4 having the surface 42 for pressing the transmission sphere is inserted into the shank 5 so as to be movable in the axial direction. A cylindrical shank 5 is screwed into the rear end of the housing 2. The shank 5 has a function of being attached to a driving device (not shown) such as a drilling machine or a lathe or a holder (not shown) for fixing and holding the tool 1 when burnishing using the tool 1. A pressing member is slidably received in one end (the left end in FIG. 1) of the shank 5, and a screw portion 61 of a spring receiver 6 is screwed and fixed in the other end by a nut 62 so as to be positionally adjustable. A spring 7 for pressing the pressing member toward the transmission sphere is inserted between the pressing member 4 and the spring receiver 6 in the shank 5. The pressing force of the transmission sphere is adjusted by adjusting the position of the spring receiver 6.
ハウジング2の一端の外周は径が小さくなっていて、そ
の小径部23には加工体3が開口21から半径方向外側に飛
出るのを防止するスリーブ状の押え8が嵌合されてい
る。押え8には加工体保持具の開口21に対応する位置に
円周方向に長細い開口81が形成されている。押え8は止
めねじ91により保持具の先端に取付けられた押え部材9
により固定されている。The outer circumference at one end of the housing 2 has a small diameter, and a sleeve-shaped presser 8 for preventing the processed body 3 from projecting radially outward from the opening 21 is fitted to the small diameter portion 23. The presser foot 8 has an opening 81 elongated in the circumferential direction at a position corresponding to the opening 21 of the workpiece holder. The presser foot 8 is a presser member 9 attached to the tip of the holder by a set screw 91.
It is fixed by.
上記構成の工具1を使用してバニシング加工する場合、
この工具1の先端の球状加工体の部分を第4図に示され
るような被加工物すなわちワークmの穴h内にいれる。
このとき球状加工体は伝達球体41を介して押圧部材5に
より押されて開口の半径方向外側に押されるため、加工
体3はワークの加工面fに押付けられる。この状態で加
工具又はワークのどちらか一方を他方に対して相対的に
回転するとともにそれらを互いに軸方向に相対移動する
と、加工体3は加工面fに接して転動又は滑動し、加工
面は順次加工体に押圧されてバニシング加工される。そ
して内径が変っていて加工面に段部が有ればそれに沿っ
て加工体が半径方向に動き、常時ワーク内面と接触して
いるので第4図のような段部のあるワークでも一様に加
工が出来る。When performing burnishing using the tool 1 having the above configuration,
The part of the spherical workpiece at the tip of the tool 1 is put into the hole h of the workpiece, that is, the workpiece m as shown in FIG.
At this time, the spherical processed body is pressed by the pressing member 5 via the transmission spherical body 41 and is pressed outward in the radial direction of the opening, so that the processed body 3 is pressed against the processing surface f of the workpiece. In this state, when one of the processing tool and the work is rotated relative to the other and they are moved relative to each other in the axial direction, the processed body 3 rolls or slides in contact with the processing surface f, Are sequentially pressed by the workpiece and burnished. If the inner diameter is changed and there is a step on the machined surface, the machined body moves in the radial direction along it and is constantly in contact with the inner surface of the work. Can be processed.
しかも、第3図に示されるように、加工体の一方3′の
みがワークの加工面に押圧されて点線の位置から内側に
変位しても、伝達球体41がそれに応じて変位し、加工体
3と3′に均等の半径方向押圧力を発生させる。したが
って、ワークの加工面の真円度等に影響されることな
く、常に安定してバニシング仕上できる。Moreover, as shown in FIG. 3, even if only one of the workpieces 3'is pressed by the machining surface of the workpiece and is displaced inward from the position indicated by the dotted line, the transmission sphere 41 is displaced accordingly and the workpiece A uniform radial pressing force is generated in 3 and 3 '. Therefore, the burnishing finish can always be performed stably without being affected by the roundness of the machined surface of the work.
(ト)効果 本考案のバニシング加工具では加工部材として球状加工
体を使用し、これを伝達球体で押圧するため、加工面の
形状に自動的に倣い易く、内径が変化する加工面でも容
易にバニシング加工できる。(G) Effect In the burnishing tool of the present invention, a spherical processed body is used as a processing member, and this is pressed by the transmission spherical body, so it is easy to automatically follow the shape of the processed surface, and even on the processed surface whose inner diameter changes. Can be burnished.
第1図は本考案によるバニシング加工具の一実施例の断
面図、第2図は第1図のバニシング加工具の先端部の側
面図、第3図は第1図のバニシング加工具の他の動作位
置を示す図、第4図は被加工物の加工面を示す図、第5
図は従来の加工具の断面図である。 1……バニシング加工具 2……加工体保持具 3……球状加工体 4……押圧部材 5……シャンク 21……開口1 is a cross-sectional view of an embodiment of the burnishing tool according to the present invention, FIG. 2 is a side view of the tip of the burnishing tool of FIG. 1, and FIG. 3 is another of the burnishing tool of FIG. FIG. 4 is a diagram showing an operating position, FIG. 4 is a diagram showing a processed surface of a workpiece,
The figure is a cross-sectional view of a conventional processing tool. 1 ... Burnishing processing tool 2 ... Processing object holder 3 ... Spherical processing object 4 ... Pressing member 5 ... Shank 21 ... Opening
Claims (1)
と、該開口に面して配設された複数の球状加工体と、該
加工体群の略中央に配設された伝達球体、および該伝達
球体をばねを介して押圧する押圧部材とからなるバニシ
ング加工具。1. A workpiece holder having a plurality of openings formed on the outer periphery thereof, a plurality of spherical workpieces arranged facing the openings, and a transmission sphere arranged substantially at the center of the group of workpieces. And a pressing member that presses the transmission sphere via a spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987012955U JPH0713966Y2 (en) | 1987-01-31 | 1987-01-31 | Burnishing tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987012955U JPH0713966Y2 (en) | 1987-01-31 | 1987-01-31 | Burnishing tools |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63120766U JPS63120766U (en) | 1988-08-04 |
JPH0713966Y2 true JPH0713966Y2 (en) | 1995-04-05 |
Family
ID=30801568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987012955U Expired - Lifetime JPH0713966Y2 (en) | 1987-01-31 | 1987-01-31 | Burnishing tools |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0713966Y2 (en) |
-
1987
- 1987-01-31 JP JP1987012955U patent/JPH0713966Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63120766U (en) | 1988-08-04 |
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