JPH0715672Y2 - Welding axis - Google Patents
Welding axisInfo
- Publication number
- JPH0715672Y2 JPH0715672Y2 JP1988091693U JP9169388U JPH0715672Y2 JP H0715672 Y2 JPH0715672 Y2 JP H0715672Y2 JP 1988091693 U JP1988091693 U JP 1988091693U JP 9169388 U JP9169388 U JP 9169388U JP H0715672 Y2 JPH0715672 Y2 JP H0715672Y2
- Authority
- JP
- Japan
- Prior art keywords
- press
- fitting
- shaft
- tubular member
- welding
- 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
- Butt Welding And Welding Of Specific Article (AREA)
Description
本考案は溶接軸に関する。 The present invention relates to a welding shaft.
例えば、トラックの後軸アクスルハウジングは、鋼板又
は鋳鋼部材の溶接軸よりなり、第３図部分縦断面図に示
すように、そのハウジング本体01の両端に、それぞれス
ピンドル02を同軸的に溶接することにより作られる。 溶接に当たっては、第４図部分拡大図に示すように、ま
ず両者の嵌合部をそれぞれ旋盤加工したのち、スピンド
ル02の内端部をハウジング本体の外端にそれぞれ圧入す
ることにより、心合わせし，開先03を溶接する。 しかしながら、このような溶接軸では、下記のような欠
点がある。 （１）溶接の際、アクスルハウジング本体の外端開口部
は、第５図に鎖線で示すように、収縮するので、圧入部
には過大な残留応力が発生し、これによりアクスルハウ
ジング本体外端部にクラックが発生し、強度が低下す
る。 （２）そこで、残留応力の発生を避けるために、両者を
圧入する代わりにすきま嵌めすると、両者の心ずれが生
じて、スピンドルの中心線が、アクスルハウジング中心
線と一致しなくなる。For example, the rear axle housing of the truck comprises a welding shaft of a steel plate or a cast steel member, and spindles 02 are coaxially welded to both ends of the housing body 01 as shown in the partial vertical sectional view of FIG. Made by. In welding, as shown in the partially enlarged view of FIG. 4, first, the fitting parts of both are machined by lathe, and then the inner end of the spindle 02 is press-fitted into the outer end of the housing body to align them. , Weld groove 03. However, such a welding shaft has the following drawbacks. (1) During welding, the outer end opening of the axle housing body shrinks as shown by the chain line in FIG. 5, so excessive residual stress is generated in the press-fitting portion, which causes the outer end of the axle housing body to end up. A crack is generated in the part and the strength is reduced. (2) Then, in order to avoid the occurrence of residual stress, when both are press-fitted and a clearance fit is performed, the two are misaligned, and the center line of the spindle does not coincide with the center line of the axle housing.
本考案はこのような事情に鑑みて提案されたもので、ス
ピンドルとアクスルハウジング本体とを正しく同一中心
線上にて固着する高精度かつ強固な溶接軸を提供するこ
とを目的とする。The present invention has been proposed in view of the above circumstances, and an object thereof is to provide a highly accurate and strong welding shaft that correctly fixes the spindle and the axle housing main body on the same center line.
本考案は上記目的を達成するために創案されたもので、
軸部材と、上記軸部材を圧入したのちに開口端部付近を
上記軸部材の外周面に溶接される管状部材とを有する溶
接軸において、上記軸部材の上記管状部材への圧入部
を、上記管状部材の内径よりも圧入代分だけ大きい外径
を有する圧入先端部と、上記圧入先端部から上記圧入部
の基端へかけて漸次先細となるテーパー形状に成形され
ているテーパー部とによって形成したことを特徴とす
る。The present invention was created to achieve the above object,
In a welding shaft having a shaft member and a tubular member that is welded to the outer peripheral surface of the shaft member near the opening end after press-fitting the shaft member, the press-fitted portion of the shaft member into the tubular member is Formed by a press-fitting tip portion having an outer diameter larger than the inner diameter of the tubular member by a press-fitting margin, and a taper portion formed in a taper shape that gradually tapers from the press-fitting tip portion to the base end of the press-fitting portion. It is characterized by having done.
上記考案によれば、軸部材と管状部材とは、軸部材の圧
入部の圧入先端部とテーパー部との協働作用により、軸
部材の軸中心と管状部材の軸中心とを同一軸心に保ちつ
つ圧入され、軸部材と管状部材とを溶接する際に、管状
部材の溶接部付近が収縮してテーパー部外周面に密着
し、軸部材の圧入部の外周面と管状部材の内周面とが適
切な面圧で圧接する。According to the above-mentioned invention, the shaft member and the tubular member have the same axial center as the shaft center of the shaft member and the shaft center of the tubular member due to the cooperative action of the press-fitting tip end portion of the shaft member and the taper portion. When the shaft member and the tubular member are press-fitted while being held, the vicinity of the welded portion of the tubular member contracts and adheres closely to the outer peripheral surface of the tapered portion, and the outer peripheral surface of the press-fitted portion of the shaft member and the inner peripheral surface of the tubular member And are pressed against each other with an appropriate surface pressure.
本考案の一実施例を図面について説明すると、第１図は
本願考案に基づいて軸部材と管状部材との圧入部の溶接
前の状態を示す部分縦断面図である。第２図は第１図の
溶接後の状態を示す部分縦断面図である。 上図において、第３〜４図と同一の記号はそれぞれ第３
〜４図と同一の部材を示し、１は軸部材であるスピンド
ル、01は管状部材であるアクスルハウジング本体、２は
スピンドル１の圧入部の先端に設けられアクスルハウジ
ング本体01の内径よりも圧入代分だけ大きい外径に成形
されている圧入先端部、３はスピンドル１の圧入部の先
端から基端にかけて先細に成形されているテーパー部で
ある。 このような構造において、まず、第１図に示すように、
スピンドル１の圧入部をアクスルハウジング本体01の開
口端部に圧入すると、圧入先端部２の調心的作用により
スピンドル１とアクスルハウジング本体01との軸中心は
同一となるとともに、圧入部にくさび状断面の環状すき
間が生ずる。 次に、スピンドル１とアクスルハウジング本体01とを開
先03にて溶接すると、第２図に示すように、アクスルハ
ウジング本体01の溶接部付近の開口端部が収縮して内周
面がスピンドル１のテーパー部３の外周面に一様の好適
な面圧で圧接する。An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial vertical sectional view showing a state before welding of a press-fitting portion of a shaft member and a tubular member based on the present invention. FIG. 2 is a partial longitudinal sectional view showing the state after welding in FIG. In the above figure, the same symbols as in FIGS.
4 shows the same members, 1 is a spindle that is a shaft member, 01 is an axle housing body that is a tubular member, 2 is a tip of the press-fitting portion of the spindle 1, and the press-fitting margin is larger than the inner diameter of the axle housing body 01 The press-fitting tip portion 3, which is formed to have an outer diameter larger by the amount, is a taper portion that is tapered from the tip end to the base end of the press-fitting portion of the spindle 1. In such a structure, first, as shown in FIG.
When the press-fitting portion of the spindle 1 is press-fitted into the opening end of the axle housing body 01, the spindle 1 and the axle housing body 01 have the same axial center due to the centering action of the press-fitting tip portion 2 and the wedge-shaped portion of the press-fitting portion. An annular gap of cross section is created. Next, when the spindle 1 and the axle housing body 01 are welded together at the groove 03, as shown in FIG. 2, the opening end near the welded portion of the axle housing body 01 contracts and the inner peripheral surface of the spindle 1 The outer peripheral surface of the tapered portion 3 is pressed with a uniform and suitable surface pressure.
以上のように本考案によれば、軸部材と、上記軸部材を
圧入したのちに開口端部付近を上記軸部材の外周面に溶
接される管状部材とを有する溶接軸において、上記軸部
材の上記管状部材への圧入部を、上記管状部材の内径よ
りも圧入代分だけ大きい外径を有する圧入先端部と、上
記圧入先端部から上記圧入部の基端へかけて漸次先細と
なるテーパー形状に成形されているテーパー部とによっ
て形成したことにより、上記軸部材と上記管状部材とを
同一軸心に圧入可能になるとともに、溶接時の上記管状
部材の溶接部付近が収縮する際に上記管状部材の収縮部
の内周面が上記テーパー部に一様の好適な面圧で圧接す
るので残留応力を低減した高精度かつ強固な溶接軸とす
ることができる効果を奏する。As described above, according to the present invention, in a welding shaft having a shaft member and a tubular member that is press-fitted into the shaft member and welded to the outer peripheral surface of the shaft member near the opening end, The press-fitting portion to the tubular member has a press-fitting tip portion having an outer diameter larger than the inner diameter of the tubular member by a press-fitting margin, and a taper shape gradually tapering from the press-fitting tip portion to the base end of the press-fitting portion. Since the shaft member and the tubular member can be press-fitted into the same axial center by forming the tapered portion formed in the above, the tubular member when the vicinity of the welded portion of the tubular member shrinks during welding. Since the inner peripheral surface of the contracted portion of the member is pressed against the tapered portion with a uniform and suitable surface pressure, it is possible to obtain a highly accurate and strong welding shaft with reduced residual stress.
第１図は本考案の一実施例の溶接部の溶接前の状態を示
す部分縦断面図、第２図は第１図の溶接後の状態を示す
同じく縦断面図である。 第３図は公知のトラックのアクスルハウジングを示す部
分縦断面図、第４図は第３図のIV部を示す部分拡大図、
第５図は第４図のアクスルハウジング外端開口部の溶接
変形を示す説明図である。 １……スピンドル,2……圧入先端部,3……テーパー部,0
1……アクスルハウジング,03……開先FIG. 1 is a partial vertical cross-sectional view showing a state before welding of a welded portion according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing the state after welding shown in FIG. FIG. 3 is a partial longitudinal sectional view showing an axle housing of a known truck, and FIG. 4 is a partially enlarged view showing an IV portion of FIG.
FIG. 5 is an explanatory diagram showing welding deformation of the outer end opening of the axle housing of FIG. 1 …… Spindle, 2 …… Press-fit tip, 3 …… Taper, 0
1 …… Axle housing, 03 …… Groove
Claims (1)
口端部付近を上記軸部材の外周面に溶接される管状部材
とを有する溶接軸において、上記軸部材の上記管状部材
への圧入部を、上記管状部材の内径よりも圧入代分だけ
大きい外径を有する圧入先端部と、上記圧入先端部から
上記圧入部の基端へかけて漸次先細となるテーパー形状
に成形されているテーパー部とによって形成したことを
特徴とする溶接軸。1. A welding shaft having a shaft member and a tubular member which is welded to the outer peripheral surface of the shaft member near the open end after press-fitting the shaft member, wherein the shaft member is joined to the tubular member. The press-fitting portion is formed into a press-fitting tip portion having an outer diameter larger than the inner diameter of the tubular member by a press-fitting margin, and a taper shape that is gradually tapered from the press-fitting tip portion to the base end of the press-fitting portion. A welding shaft characterized by being formed by a tapered portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091693U JPH0715672Y2 (en) | 1988-07-11 | 1988-07-11 | Welding axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091693U JPH0715672Y2 (en) | 1988-07-11 | 1988-07-11 | Welding axis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0216294U JPH0216294U (en) | 1990-02-01 |
| JPH0715672Y2 true JPH0715672Y2 (en) | 1995-04-12 |
Family
ID=31316161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988091693U Expired - Lifetime JPH0715672Y2 (en) | 1988-07-11 | 1988-07-11 | Welding axis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715672Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6430094B2 (en) * | 2012-07-26 | 2018-11-28 | 日野自動車株式会社 | Manufacturing method of rear axle |
| JP6446502B2 (en) * | 2017-05-16 | 2018-12-26 | 日野自動車株式会社 | Manufacturing method of rear axle |
| JP7032981B2 (en) * | 2018-04-13 | 2022-03-09 | プレス工業株式会社 | Axle case cover welding method and cover welding structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933526U (en) * | 1982-08-20 | 1984-03-01 | 株式会社富士通ゼネラル | Eccentric runout prevention device for rotating shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5061497U (en) * | 1973-10-01 | 1975-06-05 |
-
1988
- 1988-07-11 JP JP1988091693U patent/JPH0715672Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933526U (en) * | 1982-08-20 | 1984-03-01 | 株式会社富士通ゼネラル | Eccentric runout prevention device for rotating shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0216294U (en) | 1990-02-01 |
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