CN218874103U - Laser welding composite air knife device and laser welding equipment - Google Patents
Laser welding composite air knife device and laser welding equipment Download PDFInfo
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- CN218874103U CN218874103U CN202223198362.5U CN202223198362U CN218874103U CN 218874103 U CN218874103 U CN 218874103U CN 202223198362 U CN202223198362 U CN 202223198362U CN 218874103 U CN218874103 U CN 218874103U
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Abstract
The utility model belongs to the technical field of laser processing, in particular to a laser welding composite air knife device and laser welding equipment, which comprises a connecting bracket and an air knife connecting piece, wherein one end of the connecting bracket is provided with an anti-splashing mechanism, and the other end of the connecting bracket is detachably connected with a first air knife; the anti-splashing mechanism is provided with a light through hole I; one end of the air knife connecting piece is detachably connected to the end part, close to the first air knife, of the connecting support, and the other end of the air knife connecting piece is connected with a splash-proof plate; the angle between the air knife connecting piece and the connecting bracket can be adjusted; a second air knife is arranged on one side of the splash guard; the splash guard is provided with a light through hole II, and the light through hole II is matched with the size and the position of the light through hole I. The utility model provides a compound air knife device of this kind of laser welding is applicable to, and is compound through multiple air knife, reduces the pollution that the soldered connection received in welding process, protects optical lens and scanning soldered connection, improves the life of lens, guarantees welding quality.
Description
Technical Field
The utility model belongs to the technical field of laser beam machining, concretely relates to compound air knife device of laser welding and laser welding equipment.
Background
The laser scanning welding technology is an efficient laser welding technology, can greatly improve the production efficiency especially in multi-spot welding of complex parts, and is widely applied to the fields of automobile parts and the like at present. However, in the actual production process, the scanning welding laser lens is exposed in the welding working environment for a long time, and heat, dust, splash and plasma generated in the welding process can pollute the lens and influence the welding stability. The general protection form is to adopt horizontal air knife to form the gas curtain and protect the lens, but in practical application, the effect is not ideal, especially on high strength steel welding, the lens just needs to be changed after welding 10 left and right parts, and the lens size of scanning soldered connection is great, is changeed into the pollution of shining, and single replacement cost is higher, and the welding penetration is unstable after the pollution, and the phenomenon such as rosin joint, broken weld appear in the welding seam when several later weldings. In order to solve the problem of pollution to a butt joint in the welding process, the design of the air knife device plays a crucial role. It is necessary to provide an effective air knife device to protect the butt joint, prolong the service life of the lens and ensure the welding quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming that the soldered connection is easy to be polluted among the current laser scanning welding technique, influences welding quality, and scanning welding protection lens life weak point scheduling problem.
Therefore, the utility model provides a laser welding composite air knife device, which comprises a connecting bracket and an air knife connecting piece, wherein one end of the connecting bracket is provided with an anti-splashing mechanism, and the other end of the connecting bracket is detachably connected with a first air knife; the anti-splashing mechanism is provided with a light through hole I; one end of the air knife connecting piece is detachably connected to the end part, close to the first air knife, of the connecting support, and the other end of the air knife connecting piece is connected with a splash-proof plate; the angle between the air knife connecting piece and the connecting bracket can be adjusted; a second air knife is arranged on one side of the splash-proof plate; the splash guard is provided with a light through hole II, and the light through hole II is matched with the size and the position of the light through hole I.
Specifically, an air knife nozzle is arranged on the splash-proof plate; the air outlet angle of the air knife nozzle can be adjusted.
Specifically, the anti-splashing mechanism comprises a shading protection plate and a coaming; the surrounding plate is provided with a mounting groove; the shading protection plate is inserted into the enclosing plate through the mounting groove, and the enclosing plate encloses the shading protection plate; the light through hole I is formed in the shading protection plate.
Specifically, the coaming comprises a side coaming and a rear coaming; the side coamings are connected with the rear coamings through screws; the mounting groove is arranged on the back panel; and the shading protection plate is inserted into the mounting groove and then fixed on the rear coaming through a screw.
Specifically, one end of the connecting bracket is provided with a longitudinal waist round hole I; the first air knife is connected with the connecting bracket through a screw and the longitudinal waist round hole I.
Specifically, a longitudinal waist circular hole II is formed in one end, connected with the connecting support, of the air knife connecting piece; the air knife connecting piece is connected with the connecting support through a screw and the longitudinal waist circular hole II.
Specifically, the air knife connecting piece comprises a left air knife connecting piece and a right air knife connecting piece which are symmetrically arranged; one end of each of the left air knife connecting piece and the right air knife connecting piece is connected with the connecting support, and the other end of each of the left air knife connecting piece and the right air knife connecting piece is connected to the upper surface of the splash-proof plate.
Specifically, the end part of the connecting bracket is provided with an annular mounting plate; the anti-splashing mechanism is arranged below the annular mounting plate.
The utility model also provides a laser welding device, which comprises a scanning welding head and the laser welding composite air knife device; the laser welding composite air knife device is connected with the scanning welding head through one end of the connecting support provided with the anti-splashing mechanism.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
the utility model provides a compound air knife device of this kind of laser welding is applicable to, through the compound of multiple air knife, reduces the pollution that the soldered connection received in the welding process, protects optical lens and scanning soldered connection, improves the life of lens, guarantees welding quality; and respectively arranging an air knife nozzle to blow air flow to the welding seam, and blowing away smoke cloud and plasma cloud above the welding seam so as to ensure the welding quality requirement of laser scanning welding. Through tests, the composite air knife device has good protection on the welding joint in the welding process, the welding joint is checked after 1300 products are welded, the welding joint and the lens are free of pollution, the welding is stable, the service life of the lens is greatly prolonged, and the cost is reduced.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a laser welding apparatus provided by the present invention.
Fig. 2 is a schematic view of a connection structure between a connection bracket and a first air knife of a laser welding composite air knife device provided by the present invention.
Fig. 3 is a schematic diagram of an anti-spatter mechanism of a laser welding composite air knife device provided by the present invention.
Fig. 4 is a schematic view of a connection structure between an air knife connecting member and a splash shield of a laser welding composite air knife device according to the present invention.
Fig. 5 is a front view of the laser welding apparatus provided by the present invention.
Description of reference numerals: 1. scanning the welding head; 2. connecting a bracket; 21. an annular mounting plate; 22. a longitudinal waist round hole I; 3. an anti-splash mechanism; 31. side coaming plates; 32. a back panel; 33. a light shielding protection plate; 34. a light through hole I; 35. mounting grooves; 4. a first air knife; 5. an air knife attachment; 51. a right air knife connection; 52. a left air knife connector; 53. a longitudinal waist round hole II; 6. a splash shield; 61. a light through hole II; 7. a second air knife; 8. an air knife nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1-5, the utility model provides a laser welding composite air knife device, which comprises a connecting bracket 2 and an air knife connecting piece 5, wherein one end of the connecting bracket 2 is provided with a splash-proof mechanism 3, and the other end is detachably connected with a first air knife 4; the anti-splashing mechanism 3 is provided with a light through hole I34, and the size of the light through hole I34 is designed according to the scanning welding head 1; one end of the air knife connecting piece 5 is detachably connected to the end part, close to the first air knife 4, of the connecting support 2, and the other end of the air knife connecting piece is connected with a splash-proof plate 6; the angle between the air knife connecting piece 5 and the connecting bracket 2 can be adjusted; a second air knife 7 is arranged on one side of the splash guard 6; and a light through hole II 61 is formed in the splash shield 6, and the size and the position of the light through hole II 61 are matched with those of the light through hole I34. In practical use, one end of the connecting bracket 2 provided with the anti-splashing mechanism 3 is connected with the scanning welding head 1 of the laser welding equipment. In the use process, the second air knife 7 obliquely blows air downwards to blow away partial splashes and smoke dust, so that the scanning welding head 1 is protected for the first time, and the welding quality is ensured. The splash guard 6 is used for isolating the splash from the bottom to the top, and plays a role in second protection. The first air knife 4 is used for blowing away smoke dust and splash generated by welding to form a third protection. The anti-spatter mechanism 3 forms a final layer of protective structure to prevent spatter below from contaminating the scan head 1.
In order to improve the anti-pollution function of the laser welding composite air knife device, an air knife nozzle 8 can be arranged on the anti-splash plate 6, the air blowing angle is adjusted by adjusting the air outlet direction of the air knife nozzle 8, air is blown to the welding line, smoke and plasma cloud above the welding line are blown away, the welding line penetration stability is ensured, and the welding quality is ensured.
Further, the splash prevention mechanism 3 includes a light shielding protection plate 33 and a coaming plate; the coaming is provided with an installation groove 35; the light shielding protection plate 33 is inserted into the enclosing plate through the mounting groove 35, and the enclosing plate encloses the light shielding protection plate 33; the light through hole I34 is arranged on the light shielding protection plate 33. The shading protection plate 33 and the coaming are installed in a drawing mode, so that the assembly and disassembly are convenient. The coaming can be used for preventing the side welding slag from splashing and polluting the lens of the scanning welding head. Preferably, the coamings include side coamings 31 and back coamings 32; the side coamings 31 are connected with the back coamings 32 through screws; the mounting groove 35 is provided on the back panel 32; the light shielding protection plate 33 is inserted into the mounting groove 35 and then fixed to the back plate 32 by screws.
As one embodiment, one end of the connecting bracket 2 is provided with a longitudinal waist round hole I22; the first air knife 4 is connected with the connecting bracket 2 through a screw and the longitudinal waist circular hole I22. Through the relative position of adjusting screw and vertical waist round hole I22, conveniently adjust the 4 heights of first air knife as required, blow away the smoke and dust, the splash that the welding produced better in the use.
Further, one end of the air knife connecting piece 5 connected with the connecting support 2 is provided with a longitudinal waist round hole II 53; the air knife connecting piece 5 is connected with the connecting support 2 through a screw and the longitudinal waist circular hole II 53. The installation height of the air knife connecting piece 5 is adjusted by adjusting the relative position of the screw and the longitudinal waist circular hole II 53.
In a refined embodiment, the air knife connection 5 comprises a left air knife connection 52 and a right air knife connection 51 arranged symmetrically; one end of each of the left air knife connecting piece 52 and the right air knife connecting piece 51 is connected with the connecting bracket 2, and the other end of each of the left air knife connecting piece and the right air knife connecting piece is connected to the upper surface of the splash guard 6. The air knife connecting pieces 5 symmetrically connected to the left and right of the splash-proof plate 6 can enable the splash-proof plate 6 to be connected more stably, and the splash-proof plate 6 is prevented from inclining in the using process to influence the using effect.
Further, the end of the connecting bracket 2 is provided with an annular mounting plate 21; the splash prevention mechanism 3 is provided below the annular mounting plate 21. The connecting bracket 2 is fixedly connected below the scanning welding head 1 through an annular mounting plate 21, and the size of the inner ring of the annular mounting plate 21 is designed according to the scanning welding head 1.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (9)
1. The utility model provides a compound air knife device of laser welding, includes linking bridge (2) and air knife connecting piece (5), its characterized in that: one end of the connecting bracket (2) is provided with a splash-proof mechanism (3), and the other end is detachably connected with a first air knife (4); the anti-splashing mechanism (3) is provided with a light through hole I (34); one end of the air knife connecting piece (5) is detachably connected to the end part, close to the first air knife (4), of the connecting support (2), and the other end of the air knife connecting piece is connected with a splash-proof plate (6); the angle between the air knife connecting piece (5) and the connecting bracket (2) is adjustable; a second air knife (7) is arranged on one side of the splash-proof plate (6); be equipped with logical unthreaded hole II (61) on splash shield (6), logical unthreaded hole II (61) with the size and the position phase-match of logical unthreaded hole I (34).
2. A laser welding composite air knife apparatus as defined in claim 1, wherein: an air knife nozzle (8) is arranged on the splash-proof plate (6); the air outlet angle of the air knife nozzle (8) can be adjusted.
3. A laser welding composite air knife apparatus as defined in claim 1, wherein: the splash-proof mechanism (3) comprises a shading protective plate (33) and a coaming; the enclosing plate is provided with a mounting groove (35); the shading protective plate (33) is inserted into the enclosing plate through the mounting groove (35), and the enclosing plate encloses the shading protective plate (33); the light through hole I (34) is arranged on the shading protection plate (33).
4. A laser welding composite air knife apparatus as claimed in claim 3, wherein: the coamings comprise side coamings (31) and back coamings (32); the side coamings (31) are connected with the back coamings (32) through screws; the mounting groove (35) is arranged on the back panel (32); the shading protection plate (33) is inserted into the mounting groove (35) and then fixed on the back panel (32) through screws.
5. A laser welding composite air knife apparatus as defined in claim 1, wherein: one end of the connecting bracket (2) is provided with a longitudinal waist round hole I (22); the first air knife (4) is connected with the connecting bracket (2) through a screw and the longitudinal waist circular hole I (22).
6. A laser welding composite air knife apparatus as defined in claim 1, wherein: one end of the air knife connecting piece (5) connected with the connecting bracket (2) is provided with a longitudinal waist round hole II (53); the air knife connecting piece (5) is connected with the connecting support (2) through a screw and the longitudinal waist circular hole II (53).
7. A laser welding composite air knife apparatus as defined in claim 1, wherein: the air knife connecting piece (5) comprises a left air knife connecting piece (52) and a right air knife connecting piece (51) which are symmetrically arranged; one end of each of the left air knife connecting piece (52) and the right air knife connecting piece (51) is connected with the connecting support (2), and the other end of each of the left air knife connecting piece and the right air knife connecting piece is connected to the upper surface of the splash-proof plate (6).
8. A laser welding composite air knife apparatus as defined in claim 1, wherein: the end part of the connecting bracket (2) is provided with an annular mounting plate (21); the splash-proof mechanism (3) is arranged below the annular mounting plate (21).
9. A laser welding apparatus comprising a scanning welding head (1), characterized by further comprising: a laser welded composite air knife apparatus according to any one of claims 1 to 8; the laser welding composite air knife device is connected with the scanning welding head (1) through one end of the connecting support (2) provided with the anti-splashing mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198362.5U CN218874103U (en) | 2022-11-30 | 2022-11-30 | Laser welding composite air knife device and laser welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198362.5U CN218874103U (en) | 2022-11-30 | 2022-11-30 | Laser welding composite air knife device and laser welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218874103U true CN218874103U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223198362.5U Active CN218874103U (en) | 2022-11-30 | 2022-11-30 | Laser welding composite air knife device and laser welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218874103U (en) |
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2022
- 2022-11-30 CN CN202223198362.5U patent/CN218874103U/en active Active
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