CN114161055A - Helicopter box piece welding positioning device with ventilation protection function - Google Patents
Helicopter box piece welding positioning device with ventilation protection function Download PDFInfo
- Publication number
- CN114161055A CN114161055A CN202111507719.0A CN202111507719A CN114161055A CN 114161055 A CN114161055 A CN 114161055A CN 202111507719 A CN202111507719 A CN 202111507719A CN 114161055 A CN114161055 A CN 114161055A
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- Prior art keywords
- positioning
- welding
- core block
- ventilation
- helicopter
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- 238000003466 welding Methods 0.000 title claims abstract description 63
- 238000009423 ventilation Methods 0.000 title claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to the field of helicopter technological equipment design, and particularly relates to a welding and positioning device for a helicopter box body part with ventilation protection; the welding positioning device takes a positioning core block with a ventilation groove structure as a positioning main body structure, and the positioning core block is arranged on the positioning bottom plate and can be detached; the positioning bottom plate is provided with a connecting air nozzle connected with protective gas, and the protective gas directly passes through the vent groove of the positioning core block; the copper pads are arranged in the vent grooves on the positioning core blocks, vent holes are distributed on the copper pads at certain intervals, and protective gas is discharged to welding seams through the vent holes to play a role in ventilation protection when the box body pieces are welded. The problem of poor coordination between the appearance positioning and the protective gas in the traditional welding process is effectively avoided; the integral positioning structure is detachable in blocks, so that parts can be conveniently taken out of the positioning device after being welded.
Description
Technical Field
The invention belongs to the field of helicopter technological equipment design, and particularly relates to a helicopter box piece welding and positioning device with ventilation protection.
Background
The helicopter box body part is generally formed by welding and combining a plurality of sheet metal parts, is of a thin-wall box-shaped structure, and has the wall thickness of about 1 mm; when the sheet metal material used by the box body part is welded, on one hand, ventilation protection is needed, and on the other hand, as a plurality of thin-wall sheet metal parts are welded and combined, the sheet metal part is easy to deform and needs other auxiliary positioning devices in the welding process; the conventional welding process is manual welding, during welding, a plurality of thin-wall sheet metal parts are welded after being spliced into a box-shaped structure, and protective gas is only filled through an air tap held by a worker in the welding process; the operation is very inconvenient, and meanwhile, the protective gas is not uniformly ventilated when welding at the welding seam, so that the quality of the welding seam is influenced; the sheet metal part is of a thin-wall structure, and is positioned only by the structure of the sheet metal part, so that the shape of the box body is difficult to maintain, and the deformation is easy to occur after welding and needs to be matched with later-stage shape correction; the product obtained by a pure manual welding mode has low qualification rate. In order to keep the welding shape, the conventional positioning tool adopted at present is of an integral structure with a male die, a box body part is deformed after being welded and is inconvenient to mount, and the conventional positioning tool does not have a ventilation protection structure and still needs to be held by a worker to ventilate by an air nozzle; the problem of uneven ventilation of the protective gas during welding at the welding seam still exists.
Disclosure of Invention
The purpose of the invention is as follows: the helicopter box part welding and positioning device with the ventilation protection function is provided, when all components of the helicopter box part are welded, the positioning of all the components and the ventilation protection of welding seams are achieved simultaneously, and the welding forming quality and efficiency of the box part are improved.
The technical scheme of the invention is as follows:
a helicopter box body part welding and positioning device with ventilation protection takes a positioning core block with a ventilation groove structure as a positioning main body structure, and the positioning core block is arranged on a positioning bottom plate and can be detached; the positioning bottom plate is provided with a connecting air nozzle connected with protective gas, and the protective gas can directly pass through the vent groove of the positioning core block; the vent grooves on the positioning core blocks are provided with copper pads, vent holes are distributed on the copper pads at certain intervals, and protective gas can be discharged to welding seams through the vent holes to play a role in ventilation protection when the box body pieces are welded.
The positioning core block is of a three-block combined structure, the whole positioning core block is positioned by the positioning groove on the positioning bottom plate, and the middle core block and the positioning bottom plate are connected and fixed through screws.
A certain gap is left between the upper end of the middle core block and the two side core blocks, so that the contact area between the middle core block and the two side core blocks is reduced on the premise of meeting the positioning requirement, and the middle core block is convenient to take out.
Connecting lugs are arranged on two sides of the middle core block, and grooves are formed in the end parts of the lugs and are convenient for disassembling the positioning core block after the welding process is finished; because box body spare is at the welding process, the deformation easily appears, and the back is accomplished in the welding, and the shrink probably appears in box body spare, is difficult for directly breaking away from the location pellet, and at this moment, cooperation assembly and disassembly tools takes out middle location pellet.
The vent grooves of the positioning core blocks are distributed along the welding line of the box body piece, and the cross section of each vent groove is of a T-shaped structure.
The copper pad adopts red copper, and red copper material ductility is good, because the seam line is mostly the space curve, red copper is convenient for along the seam line in the air channel of impressing. When the positioning core block is pressed in, according to an application object, the positioning core block can be pressed in a segmented mode on the vent grooves without protruding out of the outer surface of the positioning core block, and a row of vent holes are uniformly distributed in the copper pad.
The copper pad is provided with a plurality of uniformly distributed small holes, the small holes are communicated with a ventilation cavity of the T-shaped structure ventilation groove, and the ventilation cavity of the T-shaped structure ventilation groove is communicated with the connecting air tap, so that the external protective gas can reach any welding seam position, and the uniformity of the protective gas can be further ensured by controlling the ventilation flow in the welding process.
The middle part of the upper end of the positioning bottom plate is provided with a positioning groove, the inner shape size of the positioning groove and the appearance size of the positioning core block need to meet the precision matching requirement, and the structure can ensure the appearance requirement after the positioning core block and the positioning bottom plate are assembled without other connecting pieces.
The invention has the following positive effects:
the welding and positioning device for the box body part of the helicopter with ventilation protection, disclosed by the invention, can meet the requirements of ventilation protection and part positioning, is convenient to operate, and improves the welding and forming quality and efficiency of the box body part; the protective gas is ventilated uniformly, so that the welding forming quality can be effectively ensured; traditional hand-held type is ventilated, very easily appears ventilating inhomogeneous condition, leads to partial welding position because of lacking protective gas and oxidation, and local oxidation influences whole welding effect.
According to the structure adopted by the invention, the positioning function and the ventilation protection function are integrated on the same structure, and in the welding process, the appearance of a part to be welded is positioned without manually holding an air nozzle for ventilation; the welding forming quality can be controlled, and the consistency of welding seams can be ensured; the problem of poor coordination between the appearance positioning and the protective gas in the traditional welding process is effectively avoided; the integral positioning structure is detachable in blocks, so that parts can be conveniently taken out of the positioning device after being welded.
Drawings
FIG. 1 is a schematic structural view of a welding and positioning device for a helicopter case member with a ventilation protection according to the present invention;
FIG. 2 is a schematic structural view of the components of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the vent slot configuration of FIG. 1;
FIG. 4 is a schematic illustration of an example of use of the present invention;
wherein: 1-positioning core block, 2-positioning bottom plate, 3-copper pad, 4-connecting air nozzle, 5-connecting screw, 6-helicopter box body part welding and positioning device with ventilation protection and 7-box body part product.
Detailed Description
The invention is described in detail below with reference to the drawings; a helicopter box body part welding and positioning device with ventilation protection is shown in figures 1, 2 and 3, and mainly comprises a positioning core block 1, a positioning bottom plate 2, a copper pad 3, a connecting air tap 4 and a connecting screw 5; the positioning core block 1 with the ventilation groove structure is taken as a positioning main body structure, and the positioning core block 1 is arranged on the positioning bottom plate 2 and can be detached; the positioning bottom plate 2 is provided with a connecting air nozzle 4 connected with protective gas, and the protective gas can directly pass through the vent groove of the positioning core block 1; the vent grooves on the positioning core block 1 are provided with copper pads 3, vent holes are distributed on the copper pads 3 according to a certain distance, and protective gas can be discharged to welding seams through the vent holes, so that the ventilation protection effect is realized when the box body piece is welded.
The positioning core block 1 is of a three-block combined structure, the whole positioning core block 1 is positioned by a positioning groove on the positioning bottom plate 2, and the middle core block and the positioning bottom plate 2 are fixedly connected through a connecting screw 5.
The ventilation grooves of the positioning core block 1 are distributed along the welding line of the box body piece, and the cross section is of a T-shaped structure.
The copper pad 3 is made of red copper, is pressed into the vent grooves of the positioning core block 1 in a segmented mode and does not protrude out of the outer surface of the positioning core block 1, and a row of vent holes are uniformly distributed in the copper pad 3.
The use example of the invention is shown in figure 4, each component of the helicopter case piece welding and positioning device 6 with ventilation protection is assembled according to a structural schematic diagram, each part of the case piece product 7 is positioned on the positioning device in a sticking and sleeving manner, and in consideration of the requirement of welding operation space, each part of the case piece product 7 is clamped by an arch clamp, so that the clamping position can be conveniently adjusted according to the welding condition, and the connecting air nozzle 4 is connected with a protective gas connecting pipe and is introduced with protective gas; after the welding is finished, if the box body product 7 can be directly taken down, the middle sub-block of the positioning core block 1 does not need to be dismounted, and if the box body product 7 cannot be directly taken down, the connecting screw 5 is screwed down, the middle sub-block of the positioning core block 1 is dismounted, and then the box body product 7 is dismounted.
It should be noted that, although not described in detail in the above embodiments, the embodiments are regarded as the prior art, and may be combined and superimposed to match each other by a simple combination in order to achieve the most basic functions and requirements of the invention. The embodiments do not limit the scope of the present invention, and in principle, other variations and combinations based on the design concept of the present invention fall within the scope of the present invention.
Claims (8)
1. A helicopter box body part welding and positioning device with ventilation protection is characterized in that a positioning core block with a ventilation groove structure is used as a positioning main body structure of the welding and positioning device, and the positioning core block is arranged on a positioning bottom plate and can be detached; the positioning bottom plate is provided with a connecting air nozzle connected with protective gas, and the protective gas directly passes through the vent groove of the positioning core block; the copper pads are arranged in the vent grooves on the positioning core blocks, vent holes are distributed on the copper pads at certain intervals, and protective gas is discharged to welding seams through the vent holes to play a role in ventilation protection when the box body pieces are welded.
2. The welding and positioning device for helicopter case parts with ventilation protection as claimed in claim 1, wherein the positioning core block is a three-piece combined structure, the whole positioning core block is positioned by the positioning slot on the positioning bottom plate, and the middle core block and the positioning bottom plate are fixed by screw connection.
3. The welding and positioning device for the helicopter case parts with the ventilation protection as claimed in claim 2, wherein a certain gap is left between the upper end of the middle core block and the two side core blocks, so that the contact area between the middle core block and the two side core blocks is reduced on the premise of meeting the positioning requirement, and the middle core block is convenient to take out.
4. The welding and positioning device for helicopter case parts with ventilation protection as claimed in claim 3, wherein the two sides of said center core block are provided with connecting lugs, the ends of the lugs are provided with grooves, and after the welding process is completed, said connecting lugs are matched with a dismounting tool for dismounting the positioning core block.
5. The welding and positioning device for helicopter case members with ventilation protection as claimed in claim 1, wherein the ventilation slots of said positioning core block are distributed along the welding seam of the case member, and the cross section is in a T-shaped structure.
6. The welding and positioning device for helicopter case members with ventilation protection as recited in claim 1 wherein said copper pad has a plurality of uniformly distributed apertures therein, said apertures communicating with the vent lumen of the T-shaped vent channel, said vent lumen of the T-shaped vent channel communicating with the connector nozzle, thereby ensuring that the external shielding gas can reach any weld joint position.
7. The helicopter case member welding position device with ventilation protection of claim 6, characterized in that the copper pad is made of red copper, and the red copper is pressed into the ventilation slot along the welding line.
8. The welding and positioning device for helicopter case parts with ventilation protection as claimed in claim 1, wherein the middle part of the upper end of the positioning bottom plate is provided with a positioning groove, the inner shape size of the positioning groove and the outer shape size of the positioning core block need to meet the precision matching requirement, and the structure can ensure the outer shape requirement of the positioning core block and the positioning bottom plate after assembly without other connecting pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507719.0A CN114161055A (en) | 2021-12-10 | 2021-12-10 | Helicopter box piece welding positioning device with ventilation protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507719.0A CN114161055A (en) | 2021-12-10 | 2021-12-10 | Helicopter box piece welding positioning device with ventilation protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114161055A true CN114161055A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111507719.0A Pending CN114161055A (en) | 2021-12-10 | 2021-12-10 | Helicopter box piece welding positioning device with ventilation protection function |
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| Country | Link |
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| CN (1) | CN114161055A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202780245U (en) * | 2012-06-12 | 2013-03-13 | 贵州长征中压开关设备有限公司 | Welding set of sheet tailor-welded five-surface box |
| CN104439636A (en) * | 2014-11-14 | 2015-03-25 | 中航飞机股份有限公司西安飞机分公司 | Titanium alloy part welding protecting method |
| CN207447715U (en) * | 2017-10-31 | 2018-06-05 | 天津正本自控系统有限公司 | A kind of battery case jig |
| CN109434272A (en) * | 2018-11-01 | 2019-03-08 | 西北工业大学 | Aluminium alloy thin-walled box body packaging fixture and the method that aluminium alloy thin-walled box body is welded using the fixture |
| CN113664450A (en) * | 2021-09-28 | 2021-11-19 | 湖北三江航天红阳机电有限公司 | Box-shaped support welding positioning tool and positioning method |
-
2021
- 2021-12-10 CN CN202111507719.0A patent/CN114161055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202780245U (en) * | 2012-06-12 | 2013-03-13 | 贵州长征中压开关设备有限公司 | Welding set of sheet tailor-welded five-surface box |
| CN104439636A (en) * | 2014-11-14 | 2015-03-25 | 中航飞机股份有限公司西安飞机分公司 | Titanium alloy part welding protecting method |
| CN207447715U (en) * | 2017-10-31 | 2018-06-05 | 天津正本自控系统有限公司 | A kind of battery case jig |
| CN109434272A (en) * | 2018-11-01 | 2019-03-08 | 西北工业大学 | Aluminium alloy thin-walled box body packaging fixture and the method that aluminium alloy thin-walled box body is welded using the fixture |
| CN113664450A (en) * | 2021-09-28 | 2021-11-19 | 湖北三江航天红阳机电有限公司 | Box-shaped support welding positioning tool and positioning method |
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