CN108067707B - Stainless steel work piece welding protection device - Google Patents
Stainless steel work piece welding protection device Download PDFInfo
- Publication number
- CN108067707B CN108067707B CN201610998186.3A CN201610998186A CN108067707B CN 108067707 B CN108067707 B CN 108067707B CN 201610998186 A CN201610998186 A CN 201610998186A CN 108067707 B CN108067707 B CN 108067707B
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- CN
- China
- Prior art keywords
- base
- air
- supporting surface
- stainless steel
- air cavity
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Classifications
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/321—Protecting means
Abstract
The invention relates to a stainless steel workpiece welding protection device which is characterized by comprising a base, a welding protection device and a welding protection device, wherein the base is provided with a first supporting surface for positioning a first workpiece and a second supporting surface for positioning a second workpiece; an air cavity and an air hole communicated with the air cavity are arranged in the base; the outer port of the air hole is positioned between the first supporting surface and the second supporting surface and is exposed; the wall of the base is also provided with an air inlet communicated with the air cavity and a cooling water channel connected with the outside; a supporting plate is further arranged in the air cavity, the upper end edge of the supporting plate is accommodated between the first supporting surface and the second supporting surface, and gaps are formed between two side surfaces of the supporting plate and two side walls of the air hole; each gap is communicated with the air inlet through the air cavity. The invention can quickly dissipate heat and prevent the deformation and color change of parts; the molten metal is prevented from dripping, the shape of the molten pool is well controlled, and the welding quality is ensured.
Description
Technical Field
The invention relates to the field of stainless steel welding, in particular to a welding protection device for a stainless steel workpiece.
Background
The welding of stainless steel parts, especially the welding of stainless steel appearance parts, has high requirements on welding quality, can not change color, and also requires that the uniformity and consistency of welding seams are good; the quality of the welding directly affects the product grade.
The existing stainless steel welding research is mostly based on tubular workpieces, the welding of the tubular workpieces is less involved, and the research is mostly concentrated in the fields of shielding gas and welding guns. However, factors affecting the welding quality are many, such as control over the weld pool, heat dissipation during welding, and the like; the prior art can not meet the welding requirement of high-quality stainless steel workpieces.
Disclosure of Invention
The invention aims to solve the technical problem of providing a stainless steel workpiece welding protection device capable of providing high-quality welding quality aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the welding protection device for the stainless steel workpiece is characterized by comprising a base, wherein the base is provided with a first supporting surface for positioning a first workpiece and a second supporting surface for positioning a second workpiece;
an air cavity and an air hole communicated with the air cavity are arranged in the base; the outer port of the air hole is positioned between the first supporting surface and the second supporting surface and is exposed;
the wall of the base is also provided with an air inlet communicated with the air cavity and a cooling water channel connected with the outside;
a supporting plate is further arranged in the air cavity, the upper end edge of the supporting plate is accommodated between the first supporting surface and the second supporting surface, and gaps are formed between two side surfaces of the supporting plate and two side walls of the air hole; each gap is communicated with the air inlet through the air cavity.
In order to conveniently position the supporting plate, a slot can be arranged on the bottom surface of the air cavity;
the supporting plate comprises a back plate matched with the air hole and supporting legs connected to the back plate, and the supporting legs are inserted into the inserting grooves.
In order to conveniently adjust and fix the position of the back plate, the base can be further provided with a screw hole, and a bolt penetrates through the screw hole to abut against the back plate.
Preferably, the support legs are provided in plurality and spaced apart from each other. The structure can enable the shielding gas to quickly and uniformly diffuse in the air cavity, thereby ensuring that the shielding gas is uniformly and stably applied to the position of a welding seam.
The air inlet hole can be multiple, the axis of each air inlet hole forms 20-40 degrees relative to the horizontal plane, and the outlet of each air inlet hole faces the air hole. The structure can ensure that the shielding gas can quickly and uniformly enter the air cavity, and meanwhile, the direct impact welding seam of the shielding gas is avoided, so that the welding quality is further ensured.
To ensure rapid heat dissipation, the cooling water passage may be disposed in the wall corresponding to the first and second support surfaces and near the air hole.
In consideration of the processing difficulty, the base can comprise a base and a first end cover and a second end cover which are connected to the end surfaces of two sides of the base;
the first end cover is provided with a water inlet channel for connecting an outside water source and the cooling water channel; and the second end cover is provided with a water outlet channel communicated with the cooling water channel and the outside. This structure greatly reduced this protection device's the processing degree of difficulty.
Compared with the prior art, the welding protection device for the stainless steel workpiece can quickly dissipate heat, and prevent the deformation and color change of parts; the protective gas is uniform and stable, molten metal liquid is prevented from dripping in the welding process, the shape of a molten pool can be well controlled, and the welding quality is ensured.
Drawings
FIG. 1 is a perspective view of an assembly structure according to an embodiment of the present invention;
FIG. 2 is a perspective view of an assembly structure of an embodiment of the present invention;
FIG. 3 is a perspective view of an exploded structure of an embodiment of the present invention;
FIG. 4 is a perspective view of the mounting structure of the base and support plate in an embodiment of the invention;
FIG. 5 is a perspective view of a first end cap in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 5, the welding protection device for stainless steel workpieces comprises:
the base 1 comprises a base 13 and a first end cap 14 and a second end cap 15 connected to both side end faces of the base 13. The first end cap 14 and the second end cap 15 are connected to the base 13 by screws (not shown).
The first end cover 14 is provided with a water inlet channel 51 which is connected with a cooling water source (not shown in the figure) and the cooling water channel 5; the second end cap 15 is provided with a water outlet passage 52 for communicating the cooling water passage 5 with an external drainage device (not shown).
An air cavity 2 which is transversely penetrated is arranged in the base 13 along the length direction of the base, and a slot 21 is arranged on the bottom surface of the air cavity 2.
The air hole 3 which is longitudinally communicated is arranged above the air cavity 2 in the base 13 along the length direction of the base, and the air hole 3 is communicated with the air cavity 2 and exposed on the upper surface of the base.
The outer surfaces of the base, which are positioned at two sides of the air hole 3, are respectively a first supporting surface 11 for positioning a first workpiece and a second supporting surface 12 for positioning a second workpiece, and the structures of the first supporting surface 11 and the second supporting surface 12 are matched with the workpieces to be welded. In this embodiment, two planes are perpendicular to each other.
A plurality of air inlet holes 4 communicated with the air cavity 2 are arranged on the wall corresponding to the first supporting surface 11 at intervals, and the number of the air inlet holes is three in the embodiment; the axes of the air inlet holes 4 form an angle of 30 degrees relative to the horizontal plane, and the outlets of the air inlet holes face the air holes 3, namely, the air inlet holes are inclined from outside to inside from bottom to top.
The walls corresponding to the first supporting surface 11 and the second supporting surface 12 are further provided with a plurality of screw holes 16 at intervals, and bolts penetrate through the screw holes 16 and abut against the back plate 61.
The cooling water channels 5 are provided at the walls corresponding to the first support surface 11 and the second support surface 12, respectively, and near the upper end of the air hole 3.
The supporting plate 6 is arranged in the air cavity 2 and the air hole 3 and is used for supporting a welding seam molten pool, preventing molten metal from dripping and controlling the structure of the molten pool; comprises a back plate 61 and two support legs 62 connected to the back plate 61, wherein the support legs 62 are arranged at intervals and positioned in the slot 21. The back plate 61 is accommodated in the air hole 3 and has a gap 31 with two side walls of the air hole 3; each gap 31 is communicated with an air inlet 4 through the air cavity 2.
When in use, the position of the back plate is adjusted through the bolt; then, two stainless steel plates (not shown in the figure) to be welded are respectively positioned on the first supporting surface and the second supporting surface, and the butt joint edges of the two stainless steel plates are over against the air hole and the supporting plate; sending inert protective gas into the cavity through the gas inlet hole, wherein the inert gas enters the gap from the two sides of the back plate to protect welding; meanwhile, because the air inlet hole is not aligned to the air hole, the protective gas is prevented from directly acting on the welding line, so that the protective gas is uniform and stable, and the flow direction of the inert gas cannot influence the welding quality; meanwhile, external cooling water enters the two cooling channels from the water inlet channel, and heat is taken away quickly through flowing cooling water, so that deformation and color change of a part to be welded are avoided.
Claims (6)
1. A stainless steel workpiece welding protection device is characterized by comprising a base (1), wherein the base (1) is provided with a first supporting surface (11) used for positioning a first workpiece and a second supporting surface (12) used for positioning a second workpiece;
an air cavity (2) and an air hole (3) communicated with the air cavity (2) are arranged in the base (1); the outer port of the air hole (3) is positioned between the first supporting surface (11) and the second supporting surface (12) and is exposed;
the wall of the base (1) is also provided with an air inlet (4) communicated with the air cavity (2) and a cooling water channel (5) connected with the outside;
a supporting plate (6) is further arranged in the air cavity (2), the upper end edge of the supporting plate (6) is accommodated between the first supporting surface (11) and the second supporting surface (12), and gaps (31) are formed between two side surfaces of the supporting plate (6) and two side walls of the air hole (3); each gap (31) is communicated with the air inlet (4) through the air cavity (2);
the bottom surface of the air cavity (2) is provided with a slot (21);
the supporting plate (6) comprises a back plate (61) matched with the air hole (3) and supporting legs (62) connected to the back plate (61), and the supporting legs (62) are inserted into the inserting grooves (21).
2. The welding protection device for stainless steel workpieces as claimed in claim 1, characterized in that the base (1) is further provided with a screw hole (16), and a bolt penetrates through the screw hole (16) and abuts against the back plate (61).
3. A stainless steel workpiece weld protector according to claim 2 in which the legs (62) are plural and spaced apart from one another.
4. A stainless steel workpiece weld protector according to any one of claims 1 to 3, characterized in that the gas inlet holes (4) are plural and the axis of each gas inlet hole is at an angle of 20 to 40 ° to the horizontal plane, the outlet of each gas inlet hole facing the gas hole (3).
5. A stainless steel workpiece weld protection device according to claim 4, characterized in that said cooling water channel (5) is arranged in the wall corresponding to said first (11) and second (12) support surfaces and close to said air hole (3).
6. The stainless steel workpiece welding protection device according to claim 5, characterized in that the base (1) comprises a base (13) and a first end cover (14) and a second end cover (15) which are connected on two side end faces of the base (13);
the first end cover (14) is provided with a water inlet channel (51) for connecting an outside water source and the cooling water channel (5); and the second end cover (15) is provided with a water outlet channel (52) which is communicated with the cooling water channel (5) and outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998186.3A CN108067707B (en) | 2016-11-11 | 2016-11-11 | Stainless steel work piece welding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998186.3A CN108067707B (en) | 2016-11-11 | 2016-11-11 | Stainless steel work piece welding protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108067707A CN108067707A (en) | 2018-05-25 |
| CN108067707B true CN108067707B (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610998186.3A Active CN108067707B (en) | 2016-11-11 | 2016-11-11 | Stainless steel work piece welding protection device |
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| Country | Link |
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| CN (1) | CN108067707B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097997B (en) * | 2018-10-25 | 2021-08-20 | 宁波方太厨具有限公司 | Tool for welding internal corner at groove step |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1555098A1 (en) * | 1988-02-05 | 1990-04-07 | Предприятие П/Я А-1122 | Back-up plate for forming a weld |
| CN204308397U (en) * | 2014-11-24 | 2015-05-06 | 番禺珠江钢管有限公司 | A kind of Plasma Welding gas protective drawing closure assembly |
| CN204771091U (en) * | 2015-07-10 | 2015-11-18 | 成都焊研威达科技股份有限公司 | Be applied to out -of --way gas protection device of plasma welding |
| CN105252121B (en) * | 2015-11-19 | 2017-11-03 | 安徽大盘特种装备车辆有限公司 | A kind of welding structure and welding method of stainless steel cylinder liner longitudinal joint |
| CN205571711U (en) * | 2015-12-30 | 2016-09-14 | 大族激光科技产业集团股份有限公司 | Gas protective device and laser welding equipment |
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| CN108067707A (en) | 2018-05-25 |
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Denomination of invention: A welding protection device for stainless steel workpiece Effective date of registration: 20210927 Granted publication date: 20200424 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2021330001772 |