CN203141006U - Straight welded joint back-surface protecting device - Google Patents
Straight welded joint back-surface protecting device Download PDFInfo
- Publication number
- CN203141006U CN203141006U CN 201320171105 CN201320171105U CN203141006U CN 203141006 U CN203141006 U CN 203141006U CN 201320171105 CN201320171105 CN 201320171105 CN 201320171105 U CN201320171105 U CN 201320171105U CN 203141006 U CN203141006 U CN 203141006U
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- China
- Prior art keywords
- box cover
- protection box
- screen cloth
- welded joint
- appendix
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- 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.)
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Abstract
The utility model discloses a straight welded joint back-surface protecting device. The straight welded joint back-surface protecting device comprises an upper protecting box cover, a lower protecting box cover, a piece of screen cloth, an air pipe and a hole plate, the distance between the upper protecting box cover and the lower protecting box cover is determined by the thickness of a workpiece to be welded, and the distance is equal to the sum of the thickness of the workpiece and 20mm. According to the design philosophy of the straight welded joint back-surface protecting device, the front surface and the back surface are protected simultaneously. When the straight welded joint back-surface protecting device is used, a welded joint is placed between the two protecting box covers, one person carries welding, another person controls the protecting box covers and brings the straight welded joint back-surface protecting device into correspondence with the welding person, use is simple, and effects are obvious. Compared with past protecting methods, the straight welded joint back-surface protecting device eliminates protection carried out by one person, can keep in step with the welding person very easily, improves the protecting effect and production efficiency, and reduces labor intensity.
Description
Technical field
The utility model belongs to mechanical welding field, is specifically related to a kind of straight weld back-protective device.
Background technology
In the pressure vessel manufacturing, titanium or titanium alloy, zirconium and the very easily oxidation of zircaloy weld seam are though there is the welding gun protection in the weld seam front; but its alloy of titanium zirconium is very active, and the heat affected area also oxidation can take place, so; positive necessary supplementary protection measure, the back side also must protections.Now common method is that the positive workman of weld seam holds the protection box and follows the welding welder, carries out auxiliary protection; The workman in the back side holds the protection box and follows the welding welder, carries out back-protective.Existing problems: 1) protection poor effect.2) hold protection box labor strength height.Both wasted argon gas, the backside space purity of argon also should not be controlled, and causes the protection poor effect.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of straight weld back-protective device is provided.
The technical solution of the utility model is:
A kind of straight weld back-protective device comprises protection box cover, protects box cover, screen cloth, appendix and orifice plate down;
The openend of described upward protection box cover is provided with the inner groovy of break-through up and down down in an one side; Another side relative with the side that is provided with inner groovy is provided with through hole, and appendix extend into protection box cover inside by this through hole; The openend of last protection box cover is coated with screen cloth, and the screen cloth below is orifice plate;
The openend of the described box of protection down cover up, and is relative with last protection box cover; The side of the following protection box cover that the side that is covered with through hole with last protection box is corresponding also is provided with through hole, and appendix extend into down protection box cover inside by this through hole; Protect the openend of box cover to be coated with screen cloth down, the screen cloth top is orifice plate;
Wherein, described appendix is metal material, and the tail end that is exposed at the part of upper and lower protection box cover outside is gathered together, and is positioned at the venthole that is partly with of upper and lower protection box cover;
Described screen cloth is wire netting;
Described orifice plate is the metallic plate that has pore.
A kind of preferred version is described screen cloth by diameter is that the white steel wire of 0.5mm constitutes.
A kind of preferred version is that described appendix is steel pipe or copper tube, and tail end is U-shaped and welds together.
A kind of preferred version is that the material of described upper and lower protection box cover and orifice plate is steel or red copper.
Distance between upper and lower protection box cover is determined that by thickness of workpiece to be welded spacing is thickness of workpiece+20mm.After determining spacing, appendix and upper and lower protection box cover is welded together, and weld seam must not defectiveness, if gas leakage then protect effect to reduce.Orifice plate plays even protection gas, and screen cloth plays the effect of damping protection gas.
The design concept of this kind protective device is that front and back is protected simultaneously, when this device uses, weld seam is placed in the middle of the two protection box covers, and people welding, a people controls protection box cover, and its and welding personnel are consistent, and uses simply, effect is obvious.Compare with guard method in the past, not only can reduce people protection, but also be very easy to keep acting in agreement with welding personnel, not only improved the protection effect, enhanced productivity, also reduce labour intensity.
Description of drawings
Fig. 1. the utility model structural representation;
Fig. 2. A-A and B-B face generalized section among Fig. 1;
Fig. 3. the utility model external structure schematic diagram;
Fig. 4. the utility model cooperates schematic diagram with welding gun;
Wherein: protect the box cover 1; 2, protect the box cover down; 3, screen cloth; 4, appendix; 5, orifice plate; 6, welding gun; 7, tungsten electrode; 8, workpiece to be welded.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
The straight weld back-protective device of present embodiment comprises protection box cover, protects box cover, screen cloth, appendix and orifice plate down.
The openend of last protection box cover is provided with the inner groovy of break-through up and down down in an one side; Another side relative with the side that is provided with inner groovy is provided with through hole, and appendix extend into protection box cover inside by this through hole; The openend of last protection box cover is coated with screen cloth, and the screen cloth below is orifice plate.
Protect the openend of box cover down up, relative with last protection box cover; The side of the following protection box cover that the side that is covered with through hole with last protection box is corresponding also is provided with through hole, and appendix extend into down protection box cover inside by this through hole; Protect the openend of box cover to be coated with screen cloth down, the screen cloth top is orifice plate.
Distance between upper and lower protection box cover is determined that by thickness of workpiece to be welded spacing is thickness of workpiece+20mm.After determining spacing, appendix and upper and lower protection box cover is welded together, and weld seam must not defectiveness, if gas leakage then protect effect to reduce.
Wherein, the tail end that appendix is exposed at the part of upper and lower protection box cover outside is U-shaped and welds together, and is positioned at the venthole that is partly with of upper and lower protection box cover.Appendix is 20 pipes of ф 19*2mm, steel matter.
Orifice plate in the present embodiment is the steel plate that has pore.Screen cloth is that the white steel wire of 0.5mm constitutes by diameter.The material of upper and lower protection box cover is steel.
The structure of present embodiment is substantially the same manner as Example 1, and difference is that appendix is the red copper material; Orifice plate is copper plate; The material of upper and lower protection box cover is red copper.
Claims (4)
1. straight weld back-protective device is characterized in that: comprise protection box cover, protect box cover, screen cloth, appendix and orifice plate down;
The openend of described upward protection box cover is provided with the inner groovy of break-through up and down down in an one side; Another side relative with the side that is provided with inner groovy is provided with through hole, and appendix extend into protection box cover inside by this through hole; The openend of last protection box cover is coated with screen cloth, and the screen cloth below is orifice plate;
The openend of the described box of protection down cover up, and is relative with last protection box cover; The side of the following protection box cover that the side that is covered with through hole with last protection box is corresponding also is provided with through hole, and appendix extend into down protection box cover inside by this through hole; Protect the openend of box cover to be coated with screen cloth down, the screen cloth top is orifice plate;
Wherein, described appendix is metal material, and the tail end that is exposed at the part of upper and lower protection box cover outside is gathered together, and is positioned at the venthole that is partly with of upper and lower protection box cover;
Described screen cloth is wire netting;
Described orifice plate is the metallic plate that has pore.
2. straight weld back-protective device as claimed in claim 1 is characterized in that: described screen cloth is that the white steel wire of 0.5mm constitutes by diameter.
3. straight weld back-protective device as claimed in claim 1, it is characterized in that: described appendix is steel pipe or copper tube, tail end is U-shaped and welds together.
4. straight weld back-protective device as claimed in claim 1, it is characterized in that: the material of described upper and lower protection box cover and orifice plate is steel or red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171105 CN203141006U (en) | 2013-04-08 | 2013-04-08 | Straight welded joint back-surface protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171105 CN203141006U (en) | 2013-04-08 | 2013-04-08 | Straight welded joint back-surface protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141006U true CN203141006U (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320171105 Expired - Fee Related CN203141006U (en) | 2013-04-08 | 2013-04-08 | Straight welded joint back-surface protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203141006U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290571A (en) * | 2015-11-17 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Manual welding device and method for barrel and mounting edge of thin-wall casing |
| CN105537731A (en) * | 2015-11-18 | 2016-05-04 | 森松（江苏）重工有限公司 | Gas shielding tool for back of gas shielded welding seam |
| CN106270986A (en) * | 2016-08-26 | 2017-01-04 | 天津大学 | A kind of weldment bearing table device simultaneously protecting flat board positive and negative weld seam |
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
-
2013
- 2013-04-08 CN CN 201320171105 patent/CN203141006U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290571A (en) * | 2015-11-17 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Manual welding device and method for barrel and mounting edge of thin-wall casing |
| CN105290571B (en) * | 2015-11-17 | 2018-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of Thin-Wall Outer Casing cylinder and the Manual welding device and method on installation side |
| CN105537731A (en) * | 2015-11-18 | 2016-05-04 | 森松（江苏）重工有限公司 | Gas shielding tool for back of gas shielded welding seam |
| CN105537731B (en) * | 2015-11-18 | 2018-05-11 | 森松（江苏）重工有限公司 | A kind of gas shielded arc welding back of weld gas shield frock |
| CN106270986A (en) * | 2016-08-26 | 2017-01-04 | 天津大学 | A kind of weldment bearing table device simultaneously protecting flat board positive and negative weld seam |
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |