Adjustable multifunctional laser welding gas protection device

Abstract

The utility model relates to laser welding device technical field, specifically is a kind of adjustable multifunctional laser welding gas protection device, including fixed plate one, the bottom end of fixed plate one is assembled in the lateral wall of adapter one;Device is fixed by fixed plate one and fixed plate two and laser generator connection, so that system has stability, fixed plate one, fixed plate two upper surface is processed with fixed shaft hole and circular arc elliptical hole, uses internal hexagonal stud, nut connects connecting plate with gas storage chamber with fixed plate, connecting plate and gas storage chamber can rotate around fixed shaft hole in the circular arc elliptical hole circular arc range, adjusting block, fixed ring one can rotate around respective fixed shaft hole, realize the multi-angle adjustment of protective gas pipe, each protective gas pipe on gas storage chamber realizes protective gas pipe length of extension by adjusting screw tightness, so as to adjust gas pipe distance workpiece surface height.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, specifically to an adjustable multifunctional laser welding gas shielding device. Background Technology

[0002] Laser welding is a welding technology that uses high-energy laser pulses to locally heat a small area of ​​material, melting it to form a specific molten pool. It is widely used in bridges, ships, vehicles, aerospace, and other fields. An essential device in laser welding is the welding gas shielding system. The high temperatures generated during laser welding cause the weld area to melt and then solidify. The welding gas shielding system effectively protects the workpiece from oxidation caused by the high temperatures during welding and also has a significant impact on the quality and morphology of the weld.

[0003] Traditional welding gas shielded devices have a relatively fixed structure, applicable only to welding movements in a single direction. The distance between the shielding gas tube and the workpiece surface is relatively fixed. When welding complex movements, segmented welding is required. When welding a different structure or when welding parameters change, the direction of the shielding gas tube and its distance from the workpiece surface need constant adjustment. In some cases, even replacing the shielding gas tube and the entire device is necessary, making it unsuitable for all situations. Multi-segment welding leads to discontinuous weld appearance, increases welding start-up and end-of-stroke defects, and adjusting or replacing the shielding gas device increases the workload for workers and reduces production efficiency. Therefore, we propose an adjustable, multi-functional laser welding gas shielded device. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an adjustable multifunctional laser welding gas shielding device.

[0005] The technical solution adopted by this utility model to solve its technical problem is an adjustable multifunctional laser welding gas protection device, including a fixing plate one. The bottom end of the fixing plate one is assembled to the side wall of the adapter one. The end of the adapter one away from the fixing plate one is equipped with a fixing plate two. The end of the fixing plate two away from the adapter one is screwed with an internal hexagonal nut. The fixing plate two is screwed to the gas storage chamber through the internal hexagonal nut. The surface of the gas storage chamber is provided with a gas passage inlet one. The end of the gas passage inlet one away from the fixing plate two is screwed with a screw. The bottom end of the gas storage chamber is connected through a protective gas pipe.

[0006] By adopting the above technical solution, the device is connected and fixed to the laser generator via fixing plate one and fixing plate two, ensuring system stability. Fixing plate one and fixing plate two are machined with a fixed-axis hole and an arc-shaped elliptical hole. Hexagonal studs and nuts are used to connect the connecting plate and the gas storage chamber to the fixing plate. The connecting plate and the gas storage chamber can rotate circumferentially around the fixed-axis hole within the arc range of the arc-shaped elliptical hole. The adjusting block and fixing ring one can also rotate circumferentially around their respective fixed-axis holes, enabling multi-angle adjustment of the protective gas tubes. The extension length of each protective gas tube on the gas storage chamber is adjusted by tightening the screws, thereby adjusting the height of the gas tube from the workpiece surface.

[0007] Specifically, the bottom end of adapter one is connected to a connecting pipe, the bottom end of the connecting pipe is connected to adapter two, the bottom end of adapter two is equipped with an adjustable joint, and a fixing ring one for switching and adjusting the joint angle is provided at the connection between adapter two and the adjustable joint.

[0008] By adopting the above technical solution, the laser generated by the laser generator enters the connecting tube through adapter one, and then passes through adapter two and is emitted from the adjustable joint to the flat workpiece for welding. Before welding, the adjustable joint can be rotated to increase or decrease the thread insertion depth according to the welding requirements to change the height of the adjustable joint from the workpiece surface. After the adjustment is completed, the locking ring one is tightened to lock the connection state of the two, thereby achieving universality.

[0009] Specifically, the adapter is provided with an air passage nozzle 2 on the side wall facing the fixing plate 1. The adapter is screwed to a connecting plate through the fixing plate 1. An adjusting block is screwed to the bottom end of the connecting plate.

[0010] By adopting the above technical solution, protective gas is injected into adapter one through the external air inlet pipe of air passage connector two, and then fixing plate one and connecting plate are screwed together and fixed by bolts.

[0011] Specifically, the top end of the adapter is screwed onto the bottom end of the laser generator via fixing plate one and fixing plate two.

[0012] By adopting the above technical solution, during installation, the adapter is screwed onto the bottom of the laser generator using the fixing plates 1 and 2 on both sides, thus completing the assembly.

[0013] Specifically, a fixed-axis hole and an arc-shaped elliptical hole are provided between the fixed plate two and the gas storage chamber.

[0014] By adopting the above technical solution, the angle between the fixed plate two and the gas storage chamber can be adjusted by loosening the bolts after the arc elliptical hole and the fixed axis hole are matched. This allows for flexible adjustment of the angle by using the adjustable joint to protect the welding head.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This welding gas shielding device achieves universal welding gas shielding for different products by adjusting the adjustable joint, connecting plate angle, and airflow channel. It can realize coaxial protection, off-axis protection, and welding of complex motion trajectories at multiple angles. It is flexible and adjustable, and can freely switch between coaxial and off-axis protection modes. It can interchange various lengths of adjustable joints and protective gas tubes, and change the spatial angle of the protective gas tube. Therefore, it is suitable for welding complex motion trajectories at multiple angles and various spatial structures. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the connection structure of the adapter 1, fixing plate 1, fixing plate 2 and laser generator of this utility model; Figure 2 This is an isometric view of the present invention; Figure 3 This is a schematic diagram of the second fixing plate structure of this utility model; Figure 4 This is a schematic diagram of the fixing plate structure of this utility model; Figure 5 This is a schematic diagram of the connection structure at the connecting pipe of this utility model; Figure 6 This is a schematic diagram of the connection structure at the connecting plate of this utility model; Figure 7 This is a schematic diagram of the connection structure at the gas storage chamber of this utility model; In the diagram: 1. Fixing plate one; 2. Fixing plate two; 3. Gas storage chamber; 4. Connecting plate; 5. Adjusting block; 6. Protective gas pipe; 7. Connecting pipe; 8. Adapter two; 9. Adapter one; 10. Adjustable joint; 11. Fixing ring one; 12. Hex socket nut; 13. Air passage connector one; 14. Air passage connector two; 15. Screw; 16. Laser generator. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figure 1-7This utility model provides a technical solution: an adjustable multifunctional laser welding gas protection device, including a fixing plate 1, the bottom end of which is mounted on the side wall of an adapter 9, a fixing plate 2 at the end of the adapter 9 away from the fixing plate 1, an internal hexagonal nut 12 screwed onto the end of the fixing plate 2 away from the adapter 9, and the fixing plate 2 being screwed into the gas storage chamber 3 via the internal hexagonal nut 12. The surface of the gas storage chamber 3 is provided with a gas passage inlet 13, and a screw 15 is screwed onto the end of the gas passage inlet 13 away from the fixing plate 2. A protective gas pipe 6 is connected through the bottom end of the gas storage chamber 3.

[0020] In use, the device is connected and fixed to the laser generator 16 via fixing plate 1 and fixing plate 2, ensuring system stability. Fixing plate 1 and fixing plate 2 are machined with fixed-axis holes and arc-shaped elliptical holes. Hexagonal studs and nuts are used to connect the connecting plate 4, the gas storage chamber 3, and the fixing plates. The connecting plate 4 and the gas storage chamber 3 can rotate circumferentially around the fixed-axis holes within the arc range of the arc-shaped elliptical holes. Adjusting blocks 5 and fixing rings 11 can also rotate circumferentially around their respective fixed-axis holes, enabling multi-angle adjustment of the protective gas tubes 6. The extension length of each protective gas tube 6 on the gas storage chamber 3 is adjusted by tightening or loosening the adjusting screws 15, thereby adjusting the height of the gas tube from the workpiece surface.

[0021] like Figure 1 , Figure 2 and Figure 5 As shown, the bottom end of the adapter 9 is connected to the connecting pipe 7, the bottom end of the connecting pipe 7 is connected to the adapter 8, the bottom end of the adapter 8 is equipped with the adjustable joint 10, and a fixing ring 11 for switching the angle of the adjustable joint is provided at the connection between the adapter 8 and the adjustable joint 10.

[0022] In use, the laser generated by the laser generator 16 enters the connecting tube 7 through the adapter 19, and then passes through the adapter 28 and is emitted from the adjustable joint 10 to the flat workpiece for welding. Before welding, the adjustable joint 10 can be rotated to increase or decrease the thread insertion depth according to the welding requirements to change the height of the adjustable joint 10 from the workpiece surface. After the adjustment is completed, the locking ring 11 is tightened to lock the connection state of the two, thereby achieving universality.

[0023] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the adapter 9 has an air passage nozzle 14 on its side wall facing the fixing plate 1. The adapter 9 is screwed to a connecting plate 4 through the fixing plate 1. An adjusting block 5 is screwed to the bottom of the connecting plate 4.

[0024] During use, protective gas is injected into adapter 9 through the external air inlet pipe connected to the air passage connector 214, and then the fixing plate 1 and the connecting plate 4 are screwed together and fixed with bolts.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top end of the adapter 9 is screwed onto the bottom end of the laser generator 16 via a fixing plate 1 and a fixing plate 2.

[0026] During use and installation, the adapter 9 is screwed onto the bottom of the laser generator 16 using the fixing plates 1 and 2 on both sides to complete the assembly.

[0027] like Figure 1 and Figure 2 As shown, a fixed-axis hole and an arc-shaped elliptical hole are provided between the fixed plate 2 and the gas storage chamber 3.

[0028] In use, the fixed plate 2 is connected to the gas storage chamber 3 by the cooperation of the arc elliptical hole and the fixed axis hole. The angle between the two can be adjusted by loosening the bolts, so as to change the angle with the adjustable joint 10 and achieve the purpose of flexibly adjusting and protecting the welding head.

[0029] The working principle and usage process of this utility model: The device is connected and fixed to the laser generator 16 through the fixing plate 1 and the fixing plate 2, so that the system has stability. The fixing plate 1 and the fixing plate 2 are machined with fixed axis holes and arc elliptical holes. The connecting plate 4 and the gas storage chamber 3 are connected to the fixing plate using hexagonal studs and nuts. The connecting plate 4 and the gas storage chamber 3 can rotate circumferentially around the fixed axis hole within the arc range of the arc elliptical hole. The adjusting block 5 and the fixing ring 11 can also rotate circumferentially around their respective fixed axis holes to realize multi-angle adjustment of the protective gas tube 6. The extension length of each protective air tube 6 on the gas storage chamber 3 is adjusted by tightening the screws 15, thereby adjusting the height of the air tube from the workpiece surface. Adapter 1 9, connecting tube 7, and adapter 2 8 are used in coaxial protection mode. The function of adapter 1 9 is to assemble the connecting tube 7 onto the laser generator 16. The function of the connecting tube 7 is to connect adapter 1 9 and adapter 2 8. The function of adapter 2 8 is to assemble the adjusting joint 10 onto the connecting tube 7. The adjusting joint 10 and adapter 2 8 are connected by threads. By rotating the adjusting joint 10 to increase or decrease the thread insertion depth, the height of the adjusting joint 10 from the workpiece surface is changed, thereby achieving universality.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable multifunctional laser welding gas shielding device, characterized in that, The device includes a fixing plate 1 (1), the bottom end of which is fitted to the side wall of the adapter 1 (9). The adapter 1 (9) is fitted with a fixing plate 2 (2) at the end away from the fixing plate 1 (1). The fixing plate 2 (2) is screwed with an internal hex nut (12) at the end away from the adapter 1 (9). The fixing plate 2 (2) is screwed into the gas storage chamber (3) through the internal hex nut (12). The surface of the gas storage chamber (3) is provided with a gas passage nozzle 1 (13). The end of the gas passage nozzle 1 (13) away from the fixing plate 2 (2) is screwed with a screw (15). The bottom end of the gas storage chamber (3) is connected to a protective gas pipe (6).

2. The adjustable multifunctional laser welding gas shielding device according to claim 1, characterized in that, The bottom end of the adapter one (9) is connected to the connecting pipe (7), the bottom end of the connecting pipe (7) is connected to the adapter two (8), the bottom end of the adapter two (8) is equipped with the adjustable joint (10), and a fixing ring one (11) for switching the angle of the adjustable joint is provided at the connection between the adapter two (8) and the adjustable joint (10).

3. The adjustable multifunctional laser welding gas shielding device according to claim 1, characterized in that, The adapter (9) has an air passage nozzle (14) on its side wall facing the fixed plate (1). The adapter (9) is screwed to a connecting plate (4) through the fixed plate (1). An adjusting block (5) is screwed to the bottom of the connecting plate (4).

4. The adjustable multifunctional laser welding gas shielding device according to claim 1, characterized in that, The top end of the adapter (9) is screwed onto the bottom end of the laser generator (16) by fixing plate (1) and fixing plate (2).

5. The adjustable multifunctional laser welding gas shielding device according to claim 1, characterized in that, The fixed plate 2 (2) and the gas storage chamber (3) are provided with a fixed axis hole and an arc elliptical hole.

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