JPH067968B2 - Pipe end processing device - Google Patents
Pipe end processing deviceInfo
- Publication number
- JPH067968B2 JPH067968B2 JP60024309A JP2430985A JPH067968B2 JP H067968 B2 JPH067968 B2 JP H067968B2 JP 60024309 A JP60024309 A JP 60024309A JP 2430985 A JP2430985 A JP 2430985A JP H067968 B2 JPH067968 B2 JP H067968B2
- Authority
- JP
- Japan
- Prior art keywords
- punch
- pipe
- processing
- spindle head
- machining
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明はパイプ端部のフレア加工および拡径加工を行う
パイプの端部加工装置に関する。Description: FIELD OF THE INVENTION The present invention relates to a pipe end processing apparatus for flaring and expanding the pipe end.
従来のパイプの端部加工装置は、第６図に示すように、
拘束具１にクランプされたパイプ２に対して矢印方向に
進退可能な主軸移動ユニット３と、その主軸移動ユニッ
ト３上に装設され、パイプ２の軸心と同一軸心上に回転
中心を有する主軸ヘッド４と、軸心を主軸ヘッド４の回
転中心と一致させられて該主軸ヘッド４の先端部に装着
される加工用ポンチ５とを備え、フレア加工に当っては
前記加工用ポンチ５として、第６図および第７図に示す
ように、円錐形状をなし、かつ円錐面６に複数個の転動
ピン７を設けたポンチを使用し、また拡径加工に当って
は前記加工用ポンチ５として、第８図に示すように、円
筒形状をなし、かつ円筒面８に複数個の転動ピン９を設
けたポンチを使用する構造となっている。尚、第６図に
おいて、１０は主軸ヘッド４の駆動用モータを示す。As shown in FIG. 6, a conventional pipe end processing device is
A spindle moving unit 3 that can advance and retreat in the arrow direction with respect to the pipe 2 clamped by the restraint tool 1, and is installed on the spindle moving unit 3 and has a rotation center on the same axis as the axis of the pipe 2. A spindle head 4 and a machining punch 5 which is mounted on the tip of the spindle head 4 with its axis aligned with the center of rotation of the spindle head 4, and is used as the machining punch 5 for flare machining. As shown in FIGS. 6 and 7, a punch having a conical shape and provided with a plurality of rolling pins 7 on the conical surface 6 is used. As shown in FIG. 8, a punch having a cylindrical shape and having a plurality of rolling pins 9 on the cylindrical surface 8 is used as the punch 5. In FIG. 6, reference numeral 10 denotes a drive motor for the spindle head 4.
そして、前述の加工装置において、第６図に示す如く主
軸ヘッド４の先端部に円錐状の加工用ポンチ５を取付
け、その加工用ポンチ５を主軸ヘッド４により回転させ
た状態で第７図のように拘束具１にクランプされたパイ
プ２の端部内側に嵌入させていくと、該加工用ポンチ５
の転動ピン７が転動しつつパイプ端部を拘束具１のフレ
ア成形部１ａに接触するまで押し拡げると共に、パイプ
内面にバニシング加工を施していく。即ち、パイプ２の
端部に内面精度の良好なフレアを形成することができ
る。Then, in the above-mentioned machining apparatus, a conical machining punch 5 is attached to the tip of the spindle head 4 as shown in FIG. 6, and the machining punch 5 is rotated by the spindle head 4 as shown in FIG. When the pipe 2 clamped by the restraint 1 is fitted inside the end portion of the pipe 2 as described above, the processing punch 5
While rolling the rolling pin 7, the end of the pipe is expanded until it comes into contact with the flare molding portion 1a of the restraint tool 1, and the inner surface of the pipe is burnished. That is, it is possible to form a flare with good inner surface accuracy at the end of the pipe 2.
また、加工用ポンチとして、第８図に示した円筒状の加
工用ポンチ５を主軸ヘッドに取付けて、前述と同様な動
作を行うことにより、パイプ２の端部に内面精度の良好
な拡径部を形成することができる。Further, as the processing punch, the cylindrical processing punch 5 shown in FIG. 8 is attached to the spindle head, and the same operation as described above is performed. Parts can be formed.
しかし、従来の加工装置においては、その加工用ポンチ
として、複数個の転動ピンを設けた構造複雑なポンチを
使用しなければならないと共に、転動ピンが摩耗、損傷
し易く、ポンチ自身の寿命が短かいという問題がある。
また、フレア加工および拡径加工を施すパイプの径が異
なる場合には、そのパイプ径に対応する加工用ポンチが
必要となる問題がある。However, in the conventional processing equipment, a punch having a complicated structure having a plurality of rolling pins must be used as a punch for the processing, and the rolling pin is easily worn or damaged, resulting in the life of the punch itself. There is a problem that is short.
Further, when the diameters of the pipes subjected to the flare processing and the diameter expansion processing are different, there is a problem that a processing punch corresponding to the pipe diameter is required.
また、実願昭５３−１７０５０号（実開昭５４−１２１
９５２号）のマイクロフイルムには、偏心した加工ロー
ラでパイプの端部を拡径する装置が開示されているが、
この公知技術に記載のローラの偏心量は、ホルダーに設
けられたローラの軸孔の位置により決定され、その偏心
量を各種径の異なるパイプ径に応じて調整することはで
きない。In addition, Japanese Patent Application No. 53-17050 (Japanese Utility Model Application No. 54-121).
No. 952) discloses a device for expanding the diameter of the end of a pipe with an eccentric processing roller.
The amount of eccentricity of the roller described in this known technique is determined by the position of the shaft hole of the roller provided in the holder, and the amount of eccentricity cannot be adjusted according to pipe diameters of various diameters.
本発明は、前記の如き従来技術の問題点を改善し、加工
用ポンチの構造を簡略化して該加工用ポンチの高寿命化
を図ると共に、特に、１種類の加工用ポンチにて径の異
なる各種のパイプの加工を行なうことができるパイプの
端部加工装置を提供することを目的とする。The present invention solves the problems of the prior art as described above, simplifies the structure of the processing punch to extend the service life of the processing punch, and particularly, the diameter of one type of processing punch is different. An object of the present invention is to provide a pipe end processing device capable of processing various pipes.
本発明は、拘束具にてクランプされるパイプの軸心と同
一軸心上に回転中心を有する主軸ヘッドと、その主軸ヘ
ッドの先端部に装着されて該主軸ヘッドと一体で回転す
る加工ポンチホルダーとを備え、その加工ポンチホルダ
ーに加工用ポンチを転動可能に取付けることにより、前
記加工用ポンチに従来技術の転動ピンの機能を持たせて
加工用ポンチ自身の構造の簡略化および、高寿命化を図
るようにする一方、前記加工ポンチホルダーと主軸ヘッ
ドとの間に、加工用ポンチの軸心を主軸ヘッドの回転中
心に対して無段階に偏心させる無段階偏心機構を設ける
ことにより、パイプの径に応じて加工用ポンチの軸心を
偏心せしめ、種々のパイプの加工を行えるようにしたも
のである。The present invention relates to a spindle head having a rotation center on the same axis as the axis of a pipe clamped by a restraint tool, and a machining punch holder attached to the tip of the spindle head and rotating integrally with the spindle head. And the processing punch is rotatably attached to the processing punch holder, so that the processing punch has the function of the rolling pin of the prior art to simplify the structure of the processing punch itself, and While aiming for longer life, by providing a stepless eccentric mechanism for steplessly eccentricizing the axis of the processing punch with respect to the center of rotation of the spindle head, between the processing punch holder and the spindle head. The center of the punch for processing is eccentric according to the diameter of the pipe so that various pipes can be processed.
〔発明の実施例〕 以下、本発明の一実施例を第１図および第２図に従って
説明する。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は本発明によるパイプの端部加工装置の側面図を
示している。この加工装置は、拘束具１にクランプされ
たパイプ２に対して矢印方向に進退可能な主軸移動ユニ
ット１１と、その主軸移動ユニット１１上に装設され、
パイプ２の軸心と同一軸心上に回転中心を有する主軸ヘ
ッド１２と、その主軸ヘッド１２の駆動用モータ１３
と、前記主軸ヘッド１２の先端部に装着されて該主軸ヘ
ッド１２と一体で回転する加工ポンチホルダー１４と、
その加工ポンチホルダー１４に転動可能に取付けられる
加工用ポンチ（図示ではフレア加工を行うための円錐状
のポンチを示している）１５と、主軸ヘッド１２と加工
ポンチホルダー１４との間に設けられて、加工用ポンチ
１５の軸心を主軸ヘッド１２の回転中心に対して無段階
に偏心させる無段階偏心機構１６とを備えた構成となっ
ている。FIG. 1 shows a side view of a pipe end processing apparatus according to the present invention. This processing apparatus is installed on the main shaft moving unit 11 and a main shaft moving unit 11 that can advance and retreat in the arrow direction with respect to the pipe 2 clamped by the restraint 1.
A spindle head 12 having a center of rotation on the same axis as the axis of the pipe 2, and a drive motor 13 for the spindle head 12.
A machining punch holder 14 mounted on the tip of the spindle head 12 and rotating integrally with the spindle head 12,
It is provided between the machining head 15 and the machining punch holder 14, and a machining punch (a conical punch for performing flare processing is shown in the drawing) 15 which is rotatably attached to the machining punch holder 14. And a stepless eccentric mechanism 16 for steplessly eccentricizing the shaft center of the processing punch 15 with respect to the center of rotation of the spindle head 12.
第２図は加工ポンチホルダーに対する加工用ポンチの取
付構造および無段階偏心機構の一例を示している。図に
おいて、加工用ポンチ１５は、その軸部１５ａを加工ポ
ンチホルダー１４の軸穴に嵌入させ、かつ該軸部１５ａ
を加工時のスラスト力を受けるスラスト軸受１７および
ラジアル力を受けるラジアル軸受１８にて支持させるこ
とにより、転動可能となっている。また加工用ポンチ１
５は、その軸部１５ａに加工ポンチホルダー１４の軸穴
と係合する鍔１５ｂを設けていて、加工ポンチホルダー
１４から抜け出ないようになっている。FIG. 2 shows an example of an attachment structure of a processing punch to a processing punch holder and a stepless eccentric mechanism. In the figure, the machining punch 15 has its shaft portion 15a fitted into the shaft hole of the machining punch holder 14, and the shaft portion 15a
Is supported by a thrust bearing 17 that receives a thrust force at the time of machining and a radial bearing 18 that receives a radial force, thereby enabling rolling. Also punch 1 for processing
5, the shaft portion 15a is provided with a collar 15b that engages with the shaft hole of the processing punch holder 14 so that the processing punch holder 14 does not come out.
前記無段階偏心機構１６は、加工ポンチホルダー１４の
背面に主軸ヘッド１２の軸心と直交する方向に設けたア
リ溝１９と、そのアリ溝１９に摺動可能に嵌入するアリ
２０と、主軸ヘッド１２先端部に設けられて、前記アリ
２０に設けた突起２０ａの移動を許す凹部２１と、主軸
ヘッド１２および前記突起２０ａを挿通するねじ２２と
を備え、前記ねじ２２を回わすことにより、アリ２０お
よびアリ溝１９を介して加工ポンチホルダー１４を主軸
ヘッド１２の軸心と直交する方向に動かすことができ
る、即ち加工用ポンチ１５の軸心を主軸ヘッド１２の回
転中心に対して無段階に偏心させることができるように
なっている。The stepless eccentric mechanism 16 includes a dovetail groove 19 provided on the back surface of the machining punch holder 14 in a direction orthogonal to the axis of the spindle head 12, an dovetail 20 slidably fitted in the dovetail groove 19, and a spindle head. 12 includes a concave portion 21 provided at the tip end portion to allow movement of the projection 20a provided on the dovetail 20 and a screw 22 for inserting the spindle head 12 and the projection 20a, and by rotating the screw 22, The machining punch holder 14 can be moved in the direction orthogonal to the axis of the spindle head 12 via the groove 20 and the dovetail groove 19, that is, the axis of the machining punch 15 can be continuously changed with respect to the rotation center of the spindle head 12. It can be eccentric.
次に本実施例によりパイプの端部にフレア加工する場合
の作用について説明する。Next, the operation of flaring the end portion of the pipe according to this embodiment will be described.
第１図に示すように、パイプ２を拘束具１にクランプし
た後、主軸ヘッド１２の先端部に取付けた円錐状の加工
用ポンチ１５を無段階偏心機構１６により、パイプ２の
径に応じて偏心させる。ａはその偏心量を示す。しかる
後、主軸ヘッド１２をモータ１３により回転させる。こ
れに伴い、偏心量ａを与えられた加工用ポンチ１５は主
軸ヘッド１２に対して偏心回転を行う。次いで、主軸移
動ユニット１１をパイプ２側へ移動させて、加工用ポン
チ１５をパイプ２内へ嵌入させていく。第２図に示すよ
うに、加工用ポンチ１５がパイプ２に嵌入されると、該
加工用ポンチ１５は偏心回転を行った状態でパイプ２内
面と接触して偏心回転方向と反対方向に転動を行いつ
つ、パイプ端部を拘束具１のフレア成形部１ａに接触す
るまで押し拡げると共に、パイプ内面にバニシング加工
を施していく。即ち、パイプ２の端部に内面精度の良好
なフレアを形成することができる。また、本実施例にお
いて、パイプ端部を拡径加工を行う場合には、第３図に
示すように加工ポンチホルダー１４に円筒状の加工用ポ
ンチ１５０を取付け、該加工用ポンチ１５０を偏心回転
させた状態でパイプ２内に嵌入させることで、パイプ２
端部に内面精度の良好な拡径部を形成することができ
る。As shown in FIG. 1, after the pipe 2 is clamped by the restraint 1, the conical punch 15 attached to the tip of the spindle head 12 is moved by the stepless eccentric mechanism 16 according to the diameter of the pipe 2. Eccentric. a shows the amount of eccentricity. After that, the spindle head 12 is rotated by the motor 13. Along with this, the processing punch 15 to which the amount of eccentricity a is given performs eccentric rotation with respect to the spindle head 12. Next, the spindle moving unit 11 is moved to the pipe 2 side, and the processing punch 15 is fitted into the pipe 2. As shown in FIG. 2, when the processing punch 15 is fitted into the pipe 2, the processing punch 15 comes into contact with the inner surface of the pipe 2 while being eccentrically rotated, and rolls in the direction opposite to the eccentric rotation direction. While performing the above, the pipe end is expanded until it comes into contact with the flare molding portion 1a of the restraint tool 1, and the inner surface of the pipe is burnished. That is, it is possible to form a flare with good inner surface accuracy at the end of the pipe 2. Further, in the present embodiment, when expanding the diameter of the pipe end, as shown in FIG. 3, a cylindrical processing punch 150 is attached to the processing punch holder 14, and the processing punch 150 is eccentrically rotated. When the pipe 2 is fitted in the pipe 2 in the state
It is possible to form a diameter-increased portion with good inner surface accuracy at the end portion.
また、前記パイプ２と径の異なるパイプについてフレア
加工および拡径加工を行う場合には、そのパイプの径に
応じて加工用ポンチの偏心量を変えて、前述と同様の動
作を行う。Further, when performing flare processing and diameter expansion processing on a pipe having a diameter different from that of the pipe 2, the eccentric amount of the processing punch is changed according to the diameter of the pipe, and the same operation as described above is performed.
従って、本実施例によれば、加工の際に加工用ポンチ自
身が転動する、即ち加工用ポンプに従来技術における転
動ピンの機能を持たせられるので、加工用ポンプの構造
を簡略化できると共に、寿命を長くすることができる。
また、加工用ポンチの偏心量を変えることにより、径の
異なる種々のパイプの端部加工を行える、つまり１種類
の加工用ポンチにて種々のパイプの加工を行うことがで
きる。Therefore, according to the present embodiment, the processing punch itself rolls during processing, that is, the processing pump can be provided with the function of the rolling pin in the prior art, so that the structure of the processing pump can be simplified. At the same time, the life can be extended.
Further, by changing the amount of eccentricity of the processing punch, it is possible to process the end portions of various pipes having different diameters, that is, one type of processing punch can process various pipes.
第４図および第５図は無段階偏心機構の他の実施例を示
している。この無段階偏心機構１６０は、加工ポンチホ
ルダー１４の背面に設けたフランジ１６１および偏心リ
ング１６２と、そのフランジ１６１に設けた円弧状の取
付孔１６３と、主軸ヘッド１２の先端部に設けた嵌合穴
１６４とを備え、前記偏心リング１６２を前記嵌合穴１
６４に嵌入し、かつ取付穴１６３および取付けボルト１
６５を介して加工ポンチホルダー１４を主軸ヘッド１２
に取付けた構造となっている。そして、前記取付穴１６
３の範囲内にて偏心リング１６２を回わすことにより加
工ポンチホルダー１４の取付位置を変更すれば、加工用
ポンチ１５の軸心を主軸ヘッド１２の回転中心に対して
無段階に偏心させることができる。4 and 5 show another embodiment of the continuously variable eccentric mechanism. The stepless eccentric mechanism 160 includes a flange 161 and an eccentric ring 162 provided on the back surface of the machining punch holder 14, an arcuate mounting hole 163 provided in the flange 161, and a fitting provided at the tip of the spindle head 12. And a hole 164 for connecting the eccentric ring 162 to the fitting hole 1
64, and mounting holes 163 and mounting bolts 1
Machining punch holder 14 through spindle 65
The structure is attached to. And the mounting hole 16
If the mounting position of the machining punch holder 14 is changed by rotating the eccentric ring 162 within the range of 3, the axis of the machining punch 15 can be continuously decentered with respect to the rotation center of the spindle head 12. it can.
以上説明したように、本発明によれば、加工用ポンチの
構造を簡略化できると共に、該加工用ポンチの高寿命化
を図れ、しかもフレア加工または拡径加工を行う際、１
種類の加工用ポンチにて径の異なる各種のパイプの加工
を行うことができる。As described above, according to the present invention, the structure of the processing punch can be simplified, the service life of the processing punch can be extended, and when performing flaring processing or diameter expansion processing,
Various types of processing punches can be used to process various pipes with different diameters.
第１図は本発明のパイプの端部加工装置の一実施例を示
す側面図、第２図は加工用ポンチの取付構造および無段
階偏心機構の一例を示す断面図で、パイプ端部にフレア
加工を行っている状態を示す、第３図はパイプ端部に拡
径加工を行っている状態を示す側面図、第４図は無段階
偏心機構の他の実施例を示す断面図、第５図はその正面
図、第６図は従来の加工装置を示す側面図、第７図はパ
イプ端部にフレア加工を行っている状態を示す断面図、
第８図は拡径加工を行うための加工用ポンチを示す側面
図である。 １…拘束具 ２…パイプ １１…主軸移動ユニット
１２…主軸ヘッド １４…加工ポンチホルダー
１５，１５０…加工用ポンチ １６，１６０…無段
階偏心機構。FIG. 1 is a side view showing an embodiment of a pipe end processing apparatus of the present invention, and FIG. 2 is a sectional view showing an example of a mounting punch mounting structure and a stepless eccentric mechanism. FIG. 3 is a side view showing a state in which the pipe end is being expanded, and FIG. 4 is a sectional view showing another embodiment of the stepless eccentric mechanism. FIG. 6 is a front view thereof, FIG. 6 is a side view showing a conventional processing apparatus, and FIG. 7 is a cross-sectional view showing a state in which a pipe end is flared.
FIG. 8 is a side view showing a processing punch for expanding the diameter. 1 ... Restraint tool 2 ... Pipe 11 ... Spindle moving unit 12 ... Spindle head 14 ... Machining punch holder
15,150 ... Punch for processing 16,160 ... Stepless eccentric mechanism.
Claims (1)
いるパイプの端部内側に嵌入させることにより、該パイ
プ端部のフレア加工または拡径加工を行なう装置であっ
て、前記パイプの軸心と同一軸心上に回転中心を有する
主軸ヘッドと、その主軸ヘッドの先端部に装着されて該
主軸ヘッドと一体で回転する加工ポンチホルダーとを備
え、前記加工用ポンチを加工ポンチホルダーに転動可能
に取付け、かつ前記加工ポンチホルダーと主軸ヘッドと
の間に、加工用ポンチの軸心を主軸ヘッドの回転中心に
対して無段階に偏心させる無段階偏心機構を設けたこと
を特徴とするパイプの端部加工装置。1. An apparatus for flaring or expanding the end of a pipe clamped by a restraint to insert the inside of the end of the pipe, the shaft of the pipe. A spindle head having a center of rotation on the same axis as the core, and a machining punch holder attached to the tip of the spindle head and rotating integrally with the spindle head are provided, and the machining punch is transferred to the machining punch holder. A stepless eccentric mechanism that is movably mounted and that provides a stepless eccentricity between the machining punch holder and the spindle head for continuously eccentricizing the axis of the machining punch with respect to the center of rotation of the spindle head. Pipe end processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60024309A JPH067968B2 (en) | 1985-02-13 | 1985-02-13 | Pipe end processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60024309A JPH067968B2 (en) | 1985-02-13 | 1985-02-13 | Pipe end processing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61186135A JPS61186135A (en) | 1986-08-19 |
| JPH067968B2 true JPH067968B2 (en) | 1994-02-02 |
Family
ID=12134572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60024309A Expired - Lifetime JPH067968B2 (en) | 1985-02-13 | 1985-02-13 | Pipe end processing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067968B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62168619A (en) * | 1986-01-20 | 1987-07-24 | Honda Motor Co Ltd | Forming method for stepped pipe |
| DK2959986T3 (en) | 2010-12-02 | 2019-02-18 | Victaulic Co Of America | Method and apparatus for producing a pipe element with shoulder, groove and bead |
| US9038428B2 (en) | 2011-09-02 | 2015-05-26 | Victaulic Company | Spin forming method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121952U (en) * | 1978-02-15 | 1979-08-25 | ||
| JPS60103522U (en) * | 1983-12-19 | 1985-07-15 | 因幡電工株式会社 | Pipe end forming equipment |
-
1985
- 1985-02-13 JP JP60024309A patent/JPH067968B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61186135A (en) | 1986-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |