JPH04494U - - Google Patents
Info
- Publication number
- JPH04494U JPH04494U JP4125890U JP4125890U JPH04494U JP H04494 U JPH04494 U JP H04494U JP 4125890 U JP4125890 U JP 4125890U JP 4125890 U JP4125890 U JP 4125890U JP H04494 U JPH04494 U JP H04494U
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- contact
- welding
- back surface
- shape
- 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
- 238000003466 welding Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
第１図Ａ，Ｂはそれぞれ本考案の一実施例であ
る裏当て治具の正面断面図及び平面図、第２図及
び第３図はそれぞれ本考案の他の実施例である裏
当て治具の各要部断面図である。第４図は従来の
裏当て治具を用いてプラズマ溶接している状態の
作用説明図であり、第５図は第４図の裏当て治具
の不具合の説明図である。
１０……エンジンバルブ、１８……凹溝、２０
……第一当接部、２２……第二当接部、３２……
凹形状部、３４……セラミツク板。
Figures 1A and B are a front sectional view and a plan view of a backing jig which is an embodiment of the present invention, respectively, and Figures 2 and 3 are respectively a backing jig which is another embodiment of the present invention. FIG. FIG. 4 is an explanatory diagram of the operation of plasma welding using a conventional backing jig, and FIG. 5 is an explanatory diagram of a malfunction of the backing jig shown in FIG. 4. 10...Engine valve, 18...Concave groove, 20
...First contact part, 22... Second contact part, 32...
Concave portion, 34...ceramic plate.
Claims (1)
際、該被溶接物の裏面に当てられて該被溶接物を
支持する金属製の裏当て治具において、 該被溶接物裏面への接触部の形状を、該被溶接
物の裏面外周縁に沿つてこれに当接する第一当接
部と、中心部ないしその近傍において該被溶接物
の裏面に当接する第二当接部と、それら当接部間
に形成された環状の凹溝とを有する形状と成した
ことを特徴とする溶接用裏当て治具。 (2) 溶接トーチによつて被溶接物に溶接を施す
際、該被溶接物の裏面に当てられて該被溶接物を
支持する金属製の裏当て治具において、 該被溶接物裏面への接触部の形状を、該被溶接
物の裏面外周縁に沿つてこれに当接する当接部と
、当接部の内側に形成された凹形状部とを有する
形状と成し、且つ該凹形状部内に、被溶接物裏面
に接触する状態でセラミツク材を充填したことを
特徴とする溶接用裏当て治具。[Claims for Utility Model Registration] (1) In a metal backing jig that is applied to the back side of the workpiece to support the workpiece when welding the workpiece with a welding torch. , the shape of the contact part to the back surface of the workpiece is divided into a first contact part that comes into contact with the back surface of the workpiece along the outer periphery of the workpiece, and a first contact part that comes into contact with the backside of the workpiece at or near the center. 1. A backing jig for welding, characterized in that the jig has a shape having a second abutting part that comes into contact with the second abutting part, and an annular groove formed between the abutting parts. (2) When welding a workpiece with a welding torch, in a metal backing jig that is applied to the back side of the workpiece to support the workpiece, The contact portion has a shape including a contact portion that abuts the workpiece along the outer peripheral edge of the back surface of the workpiece, and a concave portion formed inside the contact portion, and the concave shape A backing jig for welding, characterized in that a ceramic material is filled inside the part so as to be in contact with the back surface of the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4125890U JPH04494U (en) | 1990-04-18 | 1990-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4125890U JPH04494U (en) | 1990-04-18 | 1990-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04494U true JPH04494U (en) | 1992-01-06 |
Family
ID=31551773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4125890U Pending JPH04494U (en) | 1990-04-18 | 1990-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04494U (en) |
-
1990
- 1990-04-18 JP JP4125890U patent/JPH04494U/ja active Pending