CN219924959U - Welding forming backing plate - Google Patents
Welding forming backing plate Download PDFInfo
- Publication number
- CN219924959U CN219924959U CN202320415007.4U CN202320415007U CN219924959U CN 219924959 U CN219924959 U CN 219924959U CN 202320415007 U CN202320415007 U CN 202320415007U CN 219924959 U CN219924959 U CN 219924959U
- Authority
- CN
- China
- Prior art keywords
- welding
- heating
- backing plate
- protective gas
- channel
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 94
- 238000010438 heat treatment Methods 0.000 claims abstract description 66
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 description 55
- 230000000694 effects Effects 0.000 description 10
- 239000011257 shell material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model relates to the field of welding, in particular to a welding forming backing plate, which comprises a backing plate body, a protective gas channel and at least one heating channel; a liquid storage tank is arranged on one side, close to the welding line, of the backing plate body along the length direction of the backing plate body; the protective gas channel is arranged in the pad body along the length direction of the pad body; the protective gas channel is communicated with the liquid storage tank through a plurality of protective gas outlet holes; the heating channel is arranged in the pad body along the length direction of the pad body; a heating element is arranged in the heating channel. The utility model has the functions of gas protection and preheating, can obviously improve the forming efficiency of the whole welding seam, and can preheat the element to be welded in advance so as to shorten the welding waiting time.
Description
Technical Field
The utility model relates to the field of welding, in particular to a welding forming backing plate.
Background
Longitudinal seam welding of the shell segments and short shells of the launch vehicle is typically performed using a longitudinal seam automatic welding apparatus. The short shell is formed by splicing and welding four short shell wall plates. At present, in actual welding, four short shell wallboard workpieces are integrally clamped in a horizontal longitudinal joint mechanism, the lower parts of the workpieces are supported by special rigid pieces, and the upper parts of the workpieces are compressed by adopting a pneumatic compression mechanism, so that welding seams are tightly attached to gaskets. The automatic longitudinal seam welding equipment has the advantages that four workpieces are clamped together before welding, and the four welding seams are sequentially rotated to a flat welding posture through the integral rotating tool to be welded. The welding method adopted by the longitudinal joint at present is an argon arc welding method for single-sided welding and double-sided molding, and the joint is in butt joint. And the welding of the shell sections and the short shell longitudinal seams is aluminum alloy barrel thin-wall welding, so that the whole welding difficulty is high.
At present, welding seam forming is uneven, welding penetration cannot be achieved completely, the root of the welding seam is easy to be welded through, the welding seam on the back is concave, slag inclusion exists, the quality of the welding seam is seriously affected, and then the quality of the whole welding piece is affected. Some people also add a welding backing plate during welding to reduce the problems, but after adding the welding backing plate, the heat conduction at the welding seam is increased, and the elements to be welded need longer preheating, so that the waiting time before welding is increased.
Disclosure of Invention
In view of the above, the present utility model provides a welding forming backing plate, which aims to ensure the welding quality of a welding line and simultaneously preheat a component to be welded in advance so as to shorten the welding waiting time.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a welding forming backing plate comprises a backing plate body, a protective gas channel and at least one heating channel; a liquid storage tank is arranged on one side, close to the welding line, of the backing plate body along the length direction of the backing plate body; the protective gas channel is arranged in the pad body along the length direction of the pad body; the protective gas channel is communicated with the liquid storage tank through a plurality of protective gas outlet holes; the heating channel is arranged in the pad body along the length direction of the pad body; a heating element is arranged in the heating channel.
In some embodiments, the reservoir has a tapered cross-section that tapers from the inside to the outside.
In some embodiments, the heating element is segmented.
In some embodiments, the heating channel is provided with two; the two heating channels are respectively arranged at two sides of the shielding gas channel.
In some embodiments, the shielding gas outlet holes are arranged in rows and uniformly distributed along the length direction of the pad body.
In some embodiments, at least two rows of the shielding gas outlets are provided, and two adjacent rows of the shielding gas outlets are arranged in a staggered manner.
In summary, compared with the prior art, the utility model has the following advantages and beneficial effects: according to the utility model, the backing plate body with the liquid storage groove ensures better double-sided forming of the welding seam, uniform and full-penetration welding seam is obtained, and phenomena such as burning-through and concave phenomenon are not easy to occur at the root. The heating element can realize the preheating function of the element to be welded, so that the welding waiting time is shortened. The back of the welding seam is sprayed with the shielding gas through the shielding gas outlet hole, and the conventional shielding gas is only on the welding surface, but not on the back. The back protection gas protection function can protect the welding seam during welding and in the period of final welding seam forming, harmful gas and harmful impurities in the air can not enter the middle of the welding seam, so that the defect rate of the welding seam is greatly reduced, and the protection function of the protection gas can prevent the welding seam from being oxidized during welding. The utility model can obviously improve the forming efficiency of the whole welding seam and solve the problems that the welding seam is not penetrated or a welding piece with larger current is burnt out due to small current in the welding process.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic cross-sectional structure of the present utility model.
The definitions of the various numbers in the figures are: the base plate body 1, the shielding gas venthole 2, the reservoir 3, the shielding gas passageway 4, the heating passageway 5.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of first, second, etc. terms, if any, are used solely for the purpose of distinguishing between technical features and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1 and 2, a welding forming backing plate according to an embodiment of the present utility model includes a backing plate body 1, and the general length of the backing plate body 1 is about 600mm, but the length and the short dimension thereof can be lengthened and shortened according to specific requirements. The base plate body 1 is made of an aluminum alloy material which is the same as the shell section and the short shell material, and the selected material is subjected to solution treatment and age hardening treatment before processing so as to enhance the burning resistance and reduce deformation of the material.
The liquid storage groove 3 is processed on the backing plate body 1 along the length direction, the depth of the liquid storage groove 3 can be about 1.3mm, the opening width can be about 10mm, and the liquid storage groove 3 is positioned on one side of the backing plate body 1 close to the welding line. The liquid storage tank 3 mainly plays a role in preventing uneven weld joint forming caused by molten metal turbulence and assisting better forming of the back weld joint in the welding process.
A shielding gas passage 4 is formed in the inside of the cushion body 1 along the length direction thereof. The shielding gas passage 4 is located approximately in the middle of the pad body 1, near the reservoir 3. The shielding gas channel 4 is communicated with the liquid storage tank 3 through a plurality of shielding gas outlet holes 2. The diameter of the shielding gas channel 4 may be 3mm, one end of the shielding gas channel 4 is a blind hole, and the other end is an open end and is threaded so as to be connected with a shielding gas adapter interface for connecting an external shielding gas transmission pipe. The shielding gas may be carbon dioxide or an inert gas such as helium and argon.
The shielding gas outlet holes 2 are arranged in rows and uniformly distributed along the length direction of the backing plate body 1, so that the shielding gas can be uniformly sprayed out of the liquid storage tank 3, and the shielding gas can not only protect harmful impurities in the air from entering into the weld joint to form defects during welding, but also prevent the weld joint from being oxidized during welding.
In order to further enhance the protection effect, the protection gas outlet holes 2 are at least provided with two rows, and the protection gas outlet holes 2 between two adjacent rows are staggered, so as to finally form a dislocation effect. For example, the distance between two adjacent rows of the shielding gas outlet holes 2 may be 2.4mm, and the distance between two front and rear shielding gas outlet holes 2 in the same row may be 6mm.
At least one heating channel 5 is also processed in the pad body 1, and the heating channel 5 is also arranged along the length direction of the pad body 1, namely, is arranged in parallel with the shielding gas channel 4. The diameter of the heating channel 5 may be 4mm, and a heating element is arranged in the heating channel 5. One end of the heating channel 5 is a closed end, and the other end is an open end so as to facilitate the in-out of the heating element. The heating element may be an industrial heating rod or a heating wire. The heating element can heat the backing plate body 1 so that the weld can be preheated before welding, thereby shortening the waiting time before welding.
Considering that the longitudinal seam welding time is longer in the actual situation, if the heating element is adopted for integral heating, the welded seam can be fully preheated, but the temperature of the welded seam to be welded at the back is already reduced, so that the integral preheating effect is uneven, and the preheating effect is poor. Therefore, the embodiment of the utility model can also set the heating element to be of a sectional type, so that the heating element has a sectional heating function, and the time and the length of sectional heating of different areas can be selected on the control switch of the external heating equipment of the backing plate body 1 according to the length of the weld joint to be welded, thereby greatly ensuring the preheating effect of the weld joint before welding.
The two heating channels 5 may be provided, and the two heating channels 5 are separately provided at both sides of the shielding gas channel 4, so as to provide a more uniform heating effect and a faster heating speed for the pad body 1.
In order to provide a better technical effect for the weld seam, the welding forming backing plate according to the embodiment of the utility model, as shown in fig. 2, the cross section of the liquid storage tank 3 is tapered from inside to outside, for example, a trapezoid. The purpose is that after the heating element is installed, the side of the backing plate body 1 close to the welding line can have larger contact area with the element to be welded, so that better preheating effect can be provided for the welding line. The conical liquid storage tank 3 also has an aggregation effect on the shielding gas, so that the shielding gas is more aggregated near the welding line, and meanwhile, the shielding gas can be prevented from being dispersed to a place beyond the welding line, so that the protection effect is reduced.
The using process of the welding forming backing plate provided by the embodiment of the utility model is as follows:
firstly, electric heating wires or industrial heating rods with the diameters suitable for holes are additionally arranged in two heating channels 5 of the backing plate body 1 to serve as heating elements, and the electric heating wires or industrial heating rods can be additionally arranged in sections according to the length of a welding line and heating requirements during welding, so that the subsequent control of heating time periods and heating lengths is facilitated.
Next, a welding forming backing plate according to the embodiments of the present utility model is mounted in an embedded manner in an embedded groove in a longitudinal seam horizontal welding system.
Then, after the welding forming backing plate is installed, the control wires and the electric wires of the heating element are subjected to straightening and anti-burning treatment, and anti-burning paint can be coated or the anti-burning backing plate can be wrapped.
Then, the protective gas adapter is installed at the opening end of the protective gas outlet hole 2, namely the threaded end, and the protective gas adapter is connected with the external protective gas transmission pipe, so that the tightness of the protective gas transmission pipe is ensured by winding the raw material belt at the connecting thread as much as possible during installation and connection.
After that, when the welding forming backing plate according to the embodiment of the utility model is completely installed, the external shielding gas control switch is turned on first before welding, so that the gas enters the shielding gas channel 4 and is sprayed out from the shielding gas outlet hole 2, and the flow rate of the shielding gas is kept at about 3.5cfm (full scale cubic feet per minute, the unit of gas flow refers to cubic feet per minute). Checking whether all the protective gas outlet holes 2 are all air-injected, if some holes are blocked, the air injection is not performed, and dredging by using a thimble with small diameter until all the protective gas outlet holes 2 are normally air-injected.
Then, it is checked whether the heating element can be operated normally. And a heating element control switch is turned on to perform trial heating operation, so that the heating element is ensured to normally operate before welding. If the heating rod or the heating wire cannot be normally operated, whether the heating rod or the heating wire is damaged or not is checked in time, so that the heating rod or the heating wire can be replaced in time.
And then, after the heating element is determined to normally run before welding and the shielding gas is normally sprayed out, aligning the welding seam of the piece to be welded on the central line of the welding forming backing plate, and rotating the welding seam to a flat welding position through a welding clamp and a welding mechanical system. And then a heating element control switch is turned on, preheating is carried out on the workpiece to be welded before welding according to the heating requirement and the heating position, and the heating element is turned off after the preheating reaches the requirement. And then opening the shielding gas control switch to spray the shielding gas, and then welding, wherein the shielding gas is kept in an on state during welding until the shielding gas control switch is closed after the welding is completed.
Finally, the metal residues in the liquid storage tank 3 are cleaned in time after the welding is finished. The whole process of the welding forming backing plate disclosed by the embodiment of the utility model is finished.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above-described preferred embodiments should not be construed as limiting the utility model, which is defined in the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (5)
1. A weld formed pallet comprising:
a pad body (1); a liquid storage tank (3) is arranged on one side, close to the welding line, of the backing plate body (1) along the length direction of the backing plate body; the cross section of the liquid storage groove (3) is in a tapered shape which gradually reduces from inside to outside;
a protective gas channel (4) which is arranged in the cushion plate body (1) along the length direction of the cushion plate body (1); the protective gas channel (4) is communicated with the liquid storage tank (3) through a plurality of protective gas outlet holes (2);
at least one heating channel (5) arranged in the pad body (1) along the length direction of the pad body (1); a heating element is arranged in the heating channel (5).
2. A weld formed pallet according to claim 1, wherein: the heating element is segmented.
3. A weld formed pallet according to claim 1, wherein: the heating channels (5) are provided with two heating channels; the two heating channels (5) are respectively arranged at two sides of the shielding gas channel (4).
4. A weld formed pallet according to claim 1, wherein: the protective gas outlet holes (2) are arranged in rows and uniformly distributed along the length direction of the backing plate body (1).
5. The weld formed pallet of claim 4, wherein: the protective gas outlet holes (2) are at least provided with two rows, and two adjacent rows of the protective gas outlet holes (2) are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320415007.4U CN219924959U (en) | 2023-03-07 | 2023-03-07 | Welding forming backing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320415007.4U CN219924959U (en) | 2023-03-07 | 2023-03-07 | Welding forming backing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924959U true CN219924959U (en) | 2023-10-31 |
Family
ID=88503290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320415007.4U Active CN219924959U (en) | 2023-03-07 | 2023-03-07 | Welding forming backing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924959U (en) |
-
2023
- 2023-03-07 CN CN202320415007.4U patent/CN219924959U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103264209A (en) | Combine-welding method of stainless steel welded parts | |
| CN102294545B (en) | Laser penetration welding seam formation control method for Hass alloy conductive roller | |
| CN103862146B (en) | Gas turbine burner inner barrel manufacture method and frock | |
| CN112719515A (en) | Rail TIG welding method for black and white pipe | |
| CN106975826B (en) | Automatic welding process for butt joint of nickel-based alloy heat exchange tubes | |
| CN110899904B (en) | All-position welding method for small-caliber pipe | |
| CN1228167C (en) | Method for red copper transition welding without preheating metal alloy | |
| CN102744499A (en) | Double-side double-arc welding process for root layer of pipeline | |
| CN110508909B (en) | Welding system and method for stainless steel pipe butt joint automatic superposition pulse single-pass welding | |
| CN106312247A (en) | Bilateral welding method for fillet seams of U rib and orthotropic steel deck plate | |
| CN219924959U (en) | Welding forming backing plate | |
| CN205571712U (en) | Laser welding gas protective device | |
| CN111014901A (en) | Automatic self-melting TIG welding method for thin-wall stainless steel pipe | |
| CN113547190A (en) | Gas protection device and process method for welding TC4 titanium alloy plate | |
| CN106270956A (en) | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method | |
| CN115780964A (en) | Hook ear hole welding repair method | |
| CN210306171U (en) | Submerged arc welding machine gun head for double V-shaped groove | |
| CN113333932A (en) | Resistance spot welding repair device and method for stainless steel vehicle body | |
| CN113458550A (en) | Intelligent robot welding jig | |
| CN218926534U (en) | Rare metal welding protection device | |
| CN205520016U (en) | Pipeline welding is with left baffle and gas protection device and welding frock | |
| CN210731321U (en) | Welding system for stainless steel pipe butt joint automatic superposition pulse single-pass welding | |
| CN114951902B (en) | Construction method suitable for welding seam of reactor body of nuclear power station reactor | |
| CN109530874A (en) | A kind of titanium alloy T type docks the welding method of deep J-type weld seam | |
| CN215431971U (en) | Intelligent robot welding jig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |