JPH0386326A - End working method for extrusion molding pipe material - Google Patents
End working method for extrusion molding pipe materialInfo
- Publication number
- JPH0386326A JPH0386326A JP22036489A JP22036489A JPH0386326A JP H0386326 A JPH0386326 A JP H0386326A JP 22036489 A JP22036489 A JP 22036489A JP 22036489 A JP22036489 A JP 22036489A JP H0386326 A JPH0386326 A JP H0386326A
- Authority
- JP
- Japan
- Prior art keywords
- pipe material
- joint part
- wall thickness
- accuracy
- forming
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000001125 extrusion Methods 0.000 title description 4
- 230000000063 preceeding effect Effects 0.000 abstract 4
- 238000000465 moulding Methods 0.000 description 6
- 238000003672 processing method Methods 0.000 description 4
- 235000013372 meat Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、例えば自動車の空調器の配管用として使用す
ると効果的なパイプ材の端部加工方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for processing the end of a pipe material, which is effective when used for piping of an automobile air conditioner, for example.
〈従来の技術〉
周知のように、自動車の空調器の熱媒体の配管用として
、実開昭６０−８５６８４号公報に示す様にビーディン
グバイブ及びスイベルバイブを使用して接続している。<Prior Art> As is well known, beading vibes and swivel vibes are used to connect heat medium piping for automobile air conditioners, as shown in Japanese Utility Model Application Publication No. 60-85684.
このビーディングバイブ１は、第６図で示すように端部
の近傍に外方に隆出する鍔部分２をプレスにより形成し
て雄部３を構成し、雄部３の外面に袋状ナツト材４を回
転可能に装着するとともに、鍔部分２の前面にシール用
のＯリング５を嵌着した構成である。As shown in FIG. 6, this beading vibe 1 has a male portion 3 formed by pressing a collar portion 2 protruding outward near the end portion, and a bag-shaped nut on the outer surface of the male portion 3. The member 4 is rotatably mounted, and an O-ring 5 for sealing is fitted to the front surface of the collar portion 2.
また、スイベルバイブロは、第６図で示すように端部に
複数の段状に拡径する雌部７をプレスにより形成し、こ
の雌部７の外面に、外周面に雄ネジ部を形成したナツト
材８を回転可能に装着した構成で、袋状ナツト材４にナ
ツト材８を強く螺合することにより雌部３が雌部７内に
嵌着し、０リング５によりビーディングバイブ１とスイ
ベルバイブロとが液密に接続するのである。In addition, as shown in FIG. 6, the swivel vibro is formed by pressing a female part 7 whose diameter increases in a plurality of steps at the end thereof, and a male screw part is formed on the outer circumferential surface of this female part 7. With a structure in which the nut material 8 is rotatably mounted, the female part 3 is fitted into the female part 7 by strongly screwing the nut material 8 into the bag-shaped nut material 4, and the beading vibe 1 is connected by the O-ring 5. The swivel vibro is connected in a liquid-tight manner.
上記したビーディングバイブ１、スイベルバイブロにお
いて、液密性、熱媒体のリーク防止の関係により雄部３
と雌部７とに高度の面精度、寸法精度が要求される。In the beading vibrator 1 and swivel vibro described above, the male part 3 is
A high degree of surface accuracy and dimensional accuracy are required for the female part 7 and the female part 7.
一方、パイプ材を成形する場合、引抜き成形と押出し成
形とがあり、引抜き成形パイプ材と押出し成形パイプ材
とでは径や肉厚において精度差がある。On the other hand, when forming pipe materials, there are two methods: pultrusion molding and extrusion molding, and there is a difference in precision in diameter and wall thickness between pultrusion molded pipe materials and extrusion molded pipe materials.
引抜き成形パイプ材と押出し成形パイプ材との寸法公差
は、直径１５ｍｍ、肉厚１．０ｍｍのバイブとすると下
記の表のような相違がある。The dimensional tolerances between the pultruded pipe material and the extruded pipe material are as shown in the table below, assuming that the vibrator has a diameter of 15 mm and a wall thickness of 1.0 mm.
上記した表において、Ｐ、は引抜き成形パイプ材、Ｐ２
は押出し成形パイプ材、 （Ａ）欄は指定された径と任
意の１１所の径との差、ＣＢ）欄は指定された径と平均
径との差、 （Ｃ）欄は指定された肉厚と平均肉厚との
差である。In the above table, P is pultruded pipe material, P2
Column (A) is the difference between the specified diameter and the diameter at 11 arbitrary points, Column CB) is the difference between the specified diameter and the average diameter, and Column (C) is the specified meat. This is the difference between the thickness and the average wall thickness.
上記した表で明らかなように、面精度や寸法精度は、引
抜きパイプ材の方が押出し成形バイブ材より２倍以上も
精度が良い。As is clear from the table above, the surface accuracy and dimensional accuracy of the drawn pipe material is more than twice as good as that of the extruded vibrator material.
〈発明が解決しようとする課題〉
そこで、ビーディングバイブｌやスイベルバイブロを作
成する場合において、引抜き成形したパイプ材を使用す
ると径や肉厚において精度が良好であるから前処理する
必要がない。<Problems to be Solved by the Invention> Therefore, when creating a beading vibrator l or a swivel vibro, if a pultruded pipe material is used, the precision in diameter and wall thickness is good, so there is no need for pretreatment.
しかし、引抜き成形したパイプ材は高価であるから、長
尺なビーディングバイブ１やスイベルバイブロとして側
底使用することができない。However, since the pultruded pipe material is expensive, it cannot be used as a long beading vibrator 1 or a swivel vibro.
一方、低廉な押出し成形したパイプ材はビーディングバ
イブ１やスイベルバイブロとして使用できるが、精度が
低いのでそのまましようすると接続部分において熱媒体
の漏れやリークが発生する。On the other hand, an inexpensive extruded pipe material can be used as the beading vibrator 1 or the swivel vibro, but its accuracy is low, so if it is used as is, leakage of the heat medium will occur at the connection part.
く課題を解決するための手段〉
そこで本発明は、押出し成形されたパイプ材の端部を雌
型の内部に装着して端部内に雄型を挿入し、パイプ材の
端部の肉厚を規定寸法の範囲以内にまで均一化させる前
工程と、前工程により肉厚が均一化されたパイプ材の端
部にジヨイント部分を成形する後工程とからなることを
特徴とする押出し成形パイプ材の端部加工方法を提供す
るのである。Means for Solving the Problems> Therefore, the present invention aims to reduce the wall thickness of the end of the pipe material by mounting the end of an extruded pipe material inside a female mold and inserting a male mold into the end. An extruded pipe material characterized by comprising a pre-process of making the wall thickness uniform within a specified range, and a post-process of forming a joint part at the end of the pipe material whose wall thickness has been made uniform in the pre-process. This provides an edge processing method.
（実施例〉
以下に本発明の加工方法を図面の実施例に基づいて詳細
に説明する。(Example) The processing method of the present invention will be explained in detail below based on the example of the drawings.
本発明の加工方法は上記したように前工程と後工程とか
らなり、前工程は第１図で示すように押出し成形された
パイプ材１１の端部１２を、２分割または３分割されて
いる雌型１３の内部に密に装着して強固に把持し、端部
１２の内部に雄型１４を挿入して成形するのである。As described above, the processing method of the present invention consists of a pre-process and a post-process. In the pre-process, as shown in FIG. 1, the end portion 12 of the extruded pipe material 11 is divided into two or three parts. It is tightly mounted inside the female mold 13 and firmly gripped, and the male mold 14 is inserted into the inside of the end portion 12 for molding.
この前工程では、ジヨイント部分としてパイプ材１１の
端部１２を必要な長さだけを成形すればよく、不必要に
まで長く成形する必要がない、そして、この前工程では
、ジヨイント部分として径と肉厚とにおいて規定寸法の
均一化を図り、最低の精度を確保するものであが、上記
したように最少必要限の長さを成形するのであるから、
十分に必要な精度を加工処理することができる。In this pre-process, it is only necessary to form the end 12 of the pipe material 11 to the required length as the joint part, and there is no need to form it to an unnecessary length. This is to ensure the minimum accuracy by making the specified dimensions uniform in terms of wall thickness, but as mentioned above, the minimum required length is molded.
Processing can be performed with sufficient accuracy.
このようにして前工程を処理したら、後工程としてパイ
プ材１１の端部１２を第２図で示すようにジヨイント部
分成形用雌型１５に装着し、ジヨイント部分成形用雄型
１６を挿入してパイプ材１１の端部にジヨイント部１７
を成形するのである。このジヨイント部１７は、ジヨイ
ント部分成形用雌型１５とジヨイント部分成形用雄型１
６との組み合わせであるから一般的にはスイベルである
。After the pre-process is completed in this way, as a post-process, the end 12 of the pipe material 11 is attached to the female mold 15 for molding the joint part as shown in FIG. 2, and the male mold 16 for molding the joint part is inserted. A joint part 17 is provided at the end of the pipe material 11.
It molds. This joint part 17 is made up of a female mold 15 for molding the joint part and a male mold 1 for molding the joint part.
Since it is a combination with 6, it is generally a swivel.
しかし、パイプ材１１のジヨイント部１７をビーディン
グとする場合には、第４図で示すように前工程を終了し
たパイプ材１１の端部１２の外側に環状溝１８を有する
外側ローラ１９を臨ませるとともに、端部１２の内側に
環状突条２０を有する内側ローラ２１を臨ませ、外側ロ
ーラ１９と内側ローラ２１とを対向させて回転させると
ともにパイプ材１１を回転すると、環状溝１８と環状突
条２０とにより端部１２に鍔部工２°が形成され、ビー
ディングとなる。したがって、鍔部１２°の表面にＯリ
ング２２を嵌着すればよい。However, when the joint portion 17 of the pipe material 11 is beaded, an outer roller 19 having an annular groove 18 is placed on the outside of the end portion 12 of the pipe material 11 which has undergone the previous process, as shown in FIG. At the same time, when the inner roller 21 having the annular protrusion 20 is faced inside the end portion 12 and the outer roller 19 and the inner roller 21 are rotated facing each other and the pipe material 11 is rotated, the annular groove 18 and the annular protrusion are rotated. The strip 20 forms a flange 2° at the end 12, resulting in beading. Therefore, it is sufficient to fit the O-ring 22 onto the surface of the flange 12°.
上記した前工程と後工程とは個々に、または連続して処
理することができ、成形されたジョイント部１７は、バ
イブ材１１自体が押出し成形により余り寸法精度が高く
ないが、ジヨイント部分となる端部は前工程により十分
な精度を確保している。The above-mentioned pre-process and post-process can be performed individually or continuously, and the molded joint part 17 is a joint part, although the dimensional accuracy is not very high due to the extrusion molding of the vibe material 11 itself. Sufficient precision at the edges is ensured by the previous process.
したがって、自動車の空調器の配管用として十分に利用
することができる。Therefore, it can be fully utilized for piping of automobile air conditioners.
以上本発明を実施例に基づいて説明したが、本発明は上
記した実施例に限定されるものではなく、特許請求の範
囲に記載の構成を変更しない限りどのようにでも実施す
ることができる。Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments, and can be implemented in any manner as long as the structure described in the claims is not changed.
〈発明の効果〉
以上要するに本発明によれば、前工程ではバイブ材の端
部の径と肉厚とを規格寸法にまで均一化させ、後工程で
は均一化している端部をジヨイント部分として成形する
ようにしたので、寸法精度の低い押出し成形バイブ材を
利用しても、精度の高いジヨイント部分を形成すること
ができる。また、前工程と後工程とをしたとしても、高
価な引抜き成形のバイブ材を使用しないので、低置なバ
イブとして供することができ、特に自動車用の空調器の
配管用バイブ材として実用的価値の高いものとなる。<Effects of the Invention> In summary, according to the present invention, in the pre-process, the diameter and wall thickness of the end of the vibrator material are made uniform to the standard dimensions, and in the post-process, the uniform end is formed as a joint part. Therefore, even if an extrusion-molded vibe material with low dimensional accuracy is used, a joint portion with high precision can be formed. In addition, even if the pre-process and post-process are performed, expensive pultruded vibrator material is not used, so it can be used as a low-mounted vibrator, and has practical value, especially as a vibrator material for piping in automobile air conditioners. The value will be high.
図面は本発明の一実施例を示すもので、第１図は本発明
の加工方法の前工程の縦断面図、第２図は本発明の後工
程の縦断面図、第３図は第２１１１Ｉにより成形された
バイブ材の縦断面図、第４図は後工程の他の例の縦断面
図、第５図は第４図により成形されたバイブ材の一部を
欠截した側面図、第６図はビーディングバイブとスイベ
ルバイブとの縦断面図である。The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view of the pre-process of the processing method of the present invention, FIG. 2 is a vertical cross-sectional view of the post-process of the present invention, and FIG. FIG. 4 is a vertical cross-sectional view of another example of the post-process, FIG. 5 is a partially cutaway side view of the vibrator material molded according to FIG. FIG. 6 is a longitudinal sectional view of the beading vibe and the swivel vibe.
Claims (1)
て端部内に雄型を挿入し、パイプ材の端部の肉厚を規定
寸法の範囲以内にまで均一化させる前工程と、前工程に
より肉厚が均一化されたパイプ材の端部にジョイント部
分を成形する後工程とからなることを特徴とする押出し
成形パイプ材の端部加工方法。A pre-process of mounting the end of the extruded pipe material inside the female mold and inserting the male mold into the end to make the wall thickness of the end of the pipe material uniform within a specified size range; A method for processing an end of an extruded pipe material, comprising a post-process of forming a joint part on the end of the pipe material whose wall thickness has been made uniform in a pre-process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22036489A JPH0386326A (en) | 1989-08-29 | 1989-08-29 | End working method for extrusion molding pipe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22036489A JPH0386326A (en) | 1989-08-29 | 1989-08-29 | End working method for extrusion molding pipe material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386326A true JPH0386326A (en) | 1991-04-11 |
Family
ID=16749980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22036489A Pending JPH0386326A (en) | 1989-08-29 | 1989-08-29 | End working method for extrusion molding pipe material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007512140A (en) * | 2003-11-28 | 2007-05-17 | バイツィグ ウント フランク ゲーエムベーハー | Method for forming a joint on a pipe and manufacturing apparatus for the joint |
-
1989
- 1989-08-29 JP JP22036489A patent/JPH0386326A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007512140A (en) * | 2003-11-28 | 2007-05-17 | バイツィグ ウント フランク ゲーエムベーハー | Method for forming a joint on a pipe and manufacturing apparatus for the joint |
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