Aluminum alloy laser welding device and application method

Abstract

The invention relates to the technical field of aluminum alloy laser welding, in particular to a device for aluminum alloy laser welding and an application method. The fixing device comprises a welding platform, a lifting pressure applying assembly, a lifting adjusting assembly, a telescopic adjusting component, an angle adjusting assembly and a laser welding gun. A containing cavity is formed in the welding platform; the lifting pressure applying assembly is arranged above the containing cavity. The lifting adjusting assembly is arranged on the welding platform and located on one side of the containing cavity. One end of the telescopic adjusting component is connected with the lifting adjusting assembly, and the other end of the telescopic adjusting component is arranged in a telescopic mode towards the containing cavity. One end of the angle adjusting assembly is connected with the end, arranged towards the containing cavity in a telescopic mode, of the telescopic adjusting component, and the other end of the angle adjusting assembly is connected with the laser welding gun. According to the application method, the fixing device is adopted for completing welding operation. According to the welding device, the to-be-welded workpiece can be rapidly fixed, and the welding operation of the to-be-welded workpiece can be rapidly completed.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy laser welding, and in particular to an aluminum alloy laser welding device and an application method. Background Art

[0002] Aluminum alloy has high strength, its specific strength is close to that of high alloy steel, its specific stiffness exceeds that of steel, it has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability, and can be used as a structural material. Aluminum alloy is widely used in aerospace, aviation, transportation, construction, electromechanical, light chemical and daily products.

[0003] In aluminum alloy applications, it is often necessary to weld two or more aluminum alloys together. Therefore, a fixing device is required to complete the welding operation. However, the existing fixing device has the problem of cumbersome fixing method, resulting in low operating efficiency. Specifically, the existing fixing device includes a welding platform; multiple pairs of clamps facing each other are arranged around the welding platform to form a cavity for clamping the aluminum alloy; each pair of clamps includes screws arranged oppositely and a pressure block arranged at the end of the screw; the pressure blocks on each pair of clamps are arranged oppositely; when operating, the aluminum alloy is first placed in the cavity on the welding platform; then the screws on each clamp are rotated so that the pressure blocks on the ends of each screw clamp and fix the aluminum alloy. Since the existing fixing device needs to rotate the screws on each clamp to drive the pressure blocks to fix the aluminum alloy, there is a problem of cumbersome fixing method, resulting in low operating efficiency.

[0004] In summary, it is necessary to develop an aluminum alloy laser welding device and application method to solve the problem of low operating efficiency caused by cumbersome fixing methods in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a device and application method for aluminum alloy laser welding. The specific technical scheme is as follows:

[0006] In a first aspect, the present invention provides a device for laser welding of aluminum alloys, comprising a welding platform, a lifting and pressure-applying assembly, a lifting and adjustment assembly, a telescopic adjustment component, an angle adjustment assembly and a laser welding gun; a accommodating cavity for accommodating a workpiece to be welded is arranged on the welding platform; the lifting and pressure-applying assembly is arranged above the accommodating cavity for pressing the workpiece to be welded; the lifting and adjustment assembly is arranged on the welding platform and is located on one side of the accommodating cavity; one end of the telescopic adjustment component is connected to the lifting and adjustment assembly, and the other end is telescopically arranged toward the accommodating cavity; one end of the angle adjustment assembly is connected to one end of the telescopic adjustment component telescopically arranged toward the accommodating cavity, and the other end is connected to the laser welding gun.

[0007] Optionally, the angle adjustment assembly includes a fixed frame, a rotating shaft, a first driving member and a limit mounting component; the fixed frame is connected to the telescopic adjustment component; the rotating shaft is rotatably arranged on the fixed frame; the first driving member is arranged on the fixed frame, and its output end is connected to one end of the rotating shaft; the limit mounting component is connected to the other end of the rotating shaft; the laser welding gun is arranged on the limit mounting component.

[0008] Optionally, the limiting mounting component includes a connecting rod and a limiting ring; one end of the connecting rod is connected to the rotating shaft, and the other end is connected to the limiting ring; the limiting ring includes a limiting hole adapted to the laser welding gun.

[0009] Optionally, the limiting ring further includes a guide hole connected to the limiting hole; the opening size of the guide hole is larger than the opening size of the limiting hole; the guide hole and the limiting hole are arranged sequentially along the direction in which the laser welding gun is inserted into the limiting ring.

[0010] Optionally, the limiting installation component further includes a locking piece; a locking hole connected to the limiting hole is provided on the limiting ring; and the locking piece is adapted to fit the locking hole.

[0011] Optionally, the lifting and adjusting assembly includes a second driving member, a threaded rod and a lifting block; the threaded rod is rotatably arranged on the welding platform; the output end of the second driving member is connected to the threaded rod; the lifting block is sleeved on the threaded rod; a through hole is arranged on the lifting block, and a threaded structure adapted to the threaded rod is arranged on the inner wall of the through hole;

[0012] The lifting and adjusting assembly also includes a fixing groove arranged on the welding platform; the opening direction of the fixing groove is arranged toward the accommodating groove; both ends of the threaded rod can be rotatably arranged on the two inner walls of the fixing groove; the output end of the second driving member passes through the inner wall of the fixing groove and is connected to the threaded rod; the lifting block is snap-fitted and slidably installed on the inner side of the fixing groove.

[0013] Optionally, the aluminum alloy laser welding device also includes a protective box; the welding platform, the lifting and pressing assembly, the telescopic adjustment component, the angle adjustment assembly and the laser welding gun are all arranged in the protective box; the threaded rod and the lifting block in the lifting and adjusting assembly are both arranged in the protective box, and the fixed end of the second driving member is arranged outside the protective box, and the output end thereof passes through the protective box and is connected to the threaded rod; an openable and closable protective door is arranged on the protective box; transparent glass is arranged on the protective door; the transparent glass corresponding to the accommodating cavity and the area on the accommodating cavity are brown transparent glass.

[0014] Optionally, the lifting and pressing assembly includes at least two groups of lifting and pressing units; each group of the lifting and pressing units includes a first electric telescopic rod and a pressure block; one end of the first electric telescopic rod is connected to the inner wall of the protection box, and the other end is telescopically arranged toward the workpiece to be welded; the pressure block is arranged on one end of the first electric telescopic rod that is telescopically arranged toward the workpiece to be welded;

[0015] The lifting and pressing assembly also includes a soft pad; the soft pad is arranged on a side of the pressing block close to the workpiece to be welded.

[0016] Optionally, the telescopic adjustment component includes a second electric telescopic rod.

[0017] In a second aspect, the present invention provides an application method of the aluminum alloy laser welding device, which comprises:

[0018] Step S1, placing at least two workpieces to be welded flat in the accommodating cavity;

[0019] Step S2, using the lifting and pressing assembly to respectively press each of the workpieces to be welded, and exposing the weld position between two adjacent workpieces to be welded;

[0020] Step S3, using the lifting adjustment component to adjust the telescopic adjustment component, and then the telescopic adjustment component sequentially links the angle adjustment component and the laser welding gun to the required working height; using the angle adjustment component to adjust the laser welding gun to the required working angle; using the telescopic adjustment component to adjust the angle adjustment component, and the angle adjustment component links the laser welding gun to the required working length, and completes the welding of the weld position through the laser welding gun.

[0021] The application of the technical solution of the present invention has at least the following beneficial effects:

[0022] The present invention provides a device and application method for aluminum alloy laser welding, which lays at least two workpieces to be welded flat in the accommodating cavity; the lifting and pressing assembly is used to respectively press each of the workpieces to be welded, and the weld position between two adjacent workpieces to be welded is exposed, so that the workpieces to be welded can be quickly fixed. In addition, the present invention can also quickly adjust the laser welding gun to the required working height, required working angle and required working length, so as to quickly complete the welding operation of the workpiece to be welded; specifically, the lifting and adjusting assembly is used to adjust the telescopic adjustment component, and then the telescopic adjustment component sequentially links the angle adjustment component and the laser welding gun to the required working height; the angle adjustment component is used to adjust the laser welding gun to the required working angle; the telescopic adjustment component is used to adjust the angle adjustment component, and the angle adjustment component links the laser welding gun to the required working length, and the laser welding gun completes the welding of the weld position.

[0023] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 1 is a schematic structural diagram of an aluminum alloy laser welding device according to an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the internal structure of an aluminum alloy laser welding device according to an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of the assembled fixed frame, rotating shaft and first driving member in the angle adjustment assembly;

[0028] Figure 4 is a schematic diagram of the structure after the angle adjustment component and the laser welding gun are assembled (the first driving member is not shown in the figure);

[0029] Figure 5 It is a schematic diagram of the structure after the connecting rod and the limit ring in the angle adjustment component are assembled;

[0030] Among them, 1. Protection box, 1.1. Welding platform, 1.2. Accommodating chamber, 1.3. Protection door, 1.4. Brown transparent glass, 2. Lifting and pressing assembly, 2.1. First electric telescopic rod, 2.2. Pressing block, 2.3. Cushion, 3. Lifting and adjusting assembly, 3.1. Second driving member, 3.2. Threaded rod, 3.3. Lifting block, 3.4. Fixed groove, 4. Telescopic adjustment component, 5. Angle adjustment assembly, 5.1. Fixed frame, 5.2. Rotating shaft, 5.3. First driving member, 5.4. Connecting rod, 5.5. Limiting ring, 5.6. Locking member, 6. Laser welding gun. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] Example:

[0033] See also Figure 1-Figure 5, a device for aluminum alloy laser welding, comprising a welding platform 1.1, a lifting and pressing assembly 2, a lifting and adjusting assembly 3, a telescopic adjusting component 4, an angle adjusting assembly 5 and a laser welding gun 6; a receiving cavity 1.2 for receiving a workpiece to be welded is arranged on the welding platform 1.1; the lifting and pressing assembly 2 is arranged above the receiving cavity 1.2, and is used to press the workpiece to be welded (specifically an aluminum alloy workpiece); the lifting and adjusting assembly 3 is arranged on the welding platform 1.1, and is located on one side of the receiving cavity 1.2; one end of the telescopic adjusting component 4 is connected to the lifting and adjusting assembly 3, and the other end is telescopically arranged toward the receiving cavity 1.2; one end of the angle adjusting assembly 5 is connected to one end of the telescopic adjusting component 4 telescopically arranged toward the receiving cavity 1.2, and the other end is connected to the laser welding gun 6.

[0034] See also Figure 2-Figure 5 The angle adjustment assembly 5 includes a fixed frame 5.1, a rotating shaft 5.2, a first driving member 5.3 and a limit installation component; the fixed frame 5.1 is connected to the telescopic adjustment component 4; the rotating shaft 5.2 is rotatably arranged on the fixed frame 5.1; the first driving member 5.3 is arranged on the fixed frame 5.1, and its output end is connected to one end of the rotating shaft 5.2; the limit installation component is connected to the other end of the rotating shaft 5.2; the laser welding gun 6 is arranged on the limit installation component.

[0035] See also Figure 4-Figure 5 The limiting installation component includes a connecting rod 5.4 and a limiting ring 5.5; one end of the connecting rod 5.4 is connected to the rotating shaft 5.2, and the other end is connected to the limiting ring 5.5; the limiting ring 5.5 includes a limiting hole adapted to the laser welding gun 6, so as to facilitate the limiting installation of the laser welding gun 6.

[0036] See also Figure 4-Figure 5 The limiting ring 5.5 also includes a guide hole connected to the limiting hole; the opening size of the guide hole is larger than the opening size of the limiting hole; the guide hole and the limiting hole are arranged in sequence along the direction in which the laser welding gun 6 is inserted into the limiting ring 5.5. The combination of the guide hole and the limiting hole facilitates the rapid installation of the laser welding gun 6.

[0037] See also Figure 4-Figure 5 The limiting installation component also includes a locking member 5.6; a locking hole connected to the limiting hole is provided on the limiting ring 5.5; the locking member 5.6 is adapted to the locking hole to facilitate locking the laser welding gun 6 and ensure operation accuracy.

[0038] See also Figure 1-Figure 2The lifting and adjusting assembly 3 includes a second driving member 3.1 (specifically a motor), a threaded rod 3.2 and a lifting block 3.3; the threaded rod 3.2 is rotatably arranged on the welding platform 1.1; the output end of the second driving member 3.1 is connected to the threaded rod 3.2; the lifting block 3.3 is sleeved on the threaded rod 3.2; a through hole is arranged on the lifting block 3.3, and a threaded structure adapted to the threaded rod 3.2 is arranged on the inner wall of the through hole. In the lifting and adjusting assembly 3, the second driving member 3.1 drives the threaded rod 3.2 to rotate, and the threaded rod 3.2 links the lifting block 3.3 to perform lifting and lowering operations.

[0039] See also Figure 2 The lifting and adjusting assembly 3 also includes a fixed groove 3.4 arranged on the welding platform 1.1; the opening direction of the fixed groove 3.4 is arranged toward the receiving groove; both ends of the threaded rod 3.2 can be rotatably arranged on the two inner walls of the fixed groove 3.4; the output end of the second driving member 3.1 passes through the inner wall of the fixed groove 3.4 and is connected to the threaded rod 3.2; the lifting block 3.3 is slidably installed on the inner side of the fixed groove 3.4. The fixed groove 3.4 is used to enhance the stability of the threaded rod 3.2 during operation, and to provide a guide for the lifting operation of the lifting block 3.3.

[0040] See also Figure 1-Figure 2 The aluminum alloy laser welding device also includes a protective box 1; the welding platform 1.1, the lifting and pressing assembly 2, the telescopic adjustment component 4, the angle adjustment assembly 5 and the laser welding gun 6 are all arranged in the protective box 1; the threaded rod 3.2 and the lifting block 3.3 in the lifting and adjusting assembly 3 are both arranged in the protective box 1, and the fixed end of the second driving member 3.1 is arranged outside the protective box 1, and its output end passes through the protective box 1 and is connected with the threaded rod 3.2; an openable and closable protective door 1.3 is arranged on the protective box 1; transparent glass is arranged on the protective door 1.3 to facilitate observation of the working conditions in the protective box 1; the area where the transparent glass corresponds to the accommodating cavity 1.2 and the area on the accommodating cavity 1.2 is brown transparent glass 1.4 to prevent the strong light generated during welding from damaging the eyes of the staff.

[0041] See also Figure 2 The lifting and pressing assembly 2 includes two groups of lifting and pressing units; each group of the lifting and pressing units includes a first electric telescopic rod 2.1 and a pressure block 2.2; one end of the first electric telescopic rod 2.1 is connected to the inner wall of the protective box 1, and the other end is telescopically arranged toward the workpiece to be welded; the pressure block 2.2 is arranged on one end of the first electric telescopic rod 2.1 that is telescopically arranged toward the workpiece to be welded; the use of two groups of lifting and pressing units facilitates the separate pressing of two groups of workpieces to be welded.

[0042] See also Figure 2 The lifting and pressing assembly 2 also includes a soft pad 2.3; the soft pad 2.3 is arranged on a side of the pressing block 2.2 close to the workpiece to be welded, so as to protect the workpiece to be welded.

[0043] The telescopic adjustment component 4 is a second electric telescopic rod.

[0044] An application method using the aluminum alloy laser welding device comprises:

[0045] Step S1, placing two workpieces to be welded flat in the accommodating cavity 1.2;

[0046] Step S2, using the lifting and pressing assembly 2 to respectively press each of the workpieces to be welded, and exposing the weld position between two adjacent workpieces to be welded;

[0047] Step S3, using the lifting adjustment component 3 to adjust the telescopic adjustment component 4, and then the telescopic adjustment component 4 sequentially links the angle adjustment component 5 and the laser welding gun 6 to the required working height; using the angle adjustment component 5 to adjust the laser welding gun 6 to the required working angle; using the telescopic adjustment component 4 to adjust the angle adjustment component 5, and the angle adjustment component 5 links the laser welding gun 6 to the required working length, and completes the welding of the weld position through the laser welding gun 6.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for laser welding of aluminum alloy, characterized in that: The invention comprises a welding platform (1.1), a lifting and pressing assembly (2), a lifting and adjusting assembly (3), a telescopic adjusting component (4), an angle adjusting assembly (5) and a laser welding gun (6); a receiving cavity (1.2) for receiving a workpiece to be welded is arranged on the welding platform (1.1); the lifting and pressing assembly (2) is arranged above the receiving cavity (1.2) and is used to press the workpiece to be welded; the lifting and adjusting assembly (3) is arranged on the welding platform (1.1) and is located on one side of the receiving cavity (1.2); one end of the telescopic adjusting component (4) is connected to the lifting and adjusting assembly (3), and the other end is telescopically arranged toward the receiving cavity (1.2); one end of the angle adjusting assembly (5) is connected to one end of the telescopic adjusting component (4) telescopically arranged toward the receiving cavity (1.2), and the other end is connected to the laser welding gun (6).

2. The aluminum alloy laser welding device according to claim 1, characterized in that: The angle adjustment assembly (5) comprises a fixed frame (5.1), a rotating shaft (5.2), a first driving member (5.3) and a position-limiting mounting component; the fixed frame (5.1) is connected to the telescopic adjustment component (4); the rotating shaft (5.2) is rotatably arranged on the fixed frame (5.1); the first driving member (5.3) is arranged on the fixed frame (5.1), and its output end is connected to one end of the rotating shaft (5.2); the position-limiting mounting component is connected to the other end of the rotating shaft (5.2); and the laser welding gun (6) is arranged on the position-limiting mounting component.

3. The device for aluminum alloy laser welding according to claim 2, characterized in that: The limiting installation component comprises a connecting rod (5.4) and a limiting ring (5.5); one end of the connecting rod (5.4) is connected to the rotating shaft (5.2), and the other end is connected to the limiting ring (5.5); the limiting ring (5.5) comprises a limiting hole adapted to be arranged with the laser welding gun (6).

4. The aluminum alloy laser welding device according to claim 3, characterized in that: The limiting ring (5.5) further comprises a guide hole connected to the limiting hole; the opening size of the guide hole is larger than the opening size of the limiting hole; the guide hole and the limiting hole are arranged in sequence along the direction in which the laser welding gun (6) is inserted into the limiting ring (5.5).

5. The aluminum alloy laser welding device according to claim 3, characterized in that: The position-limiting installation component also includes a locking piece (5.6); a locking hole communicating with the position-limiting hole is provided on the position-limiting ring (5.5); and the locking piece (5.6) is adapted to be arranged in a matching manner with the locking hole.

6. The aluminum alloy laser welding device according to claim 1, characterized in that: The lifting and adjusting assembly (3) comprises a second driving member (3.1), a threaded rod (3.2) and a lifting block (3.3); the threaded rod (3.2) is rotatably arranged on the welding platform (1.1); the output end of the second driving member (3.1) is connected to the threaded rod (3.2); the lifting block (3.3) is sleeved on the threaded rod (3.2); a through hole is arranged on the lifting block (3.3), and a threaded structure adapted to the threaded rod (3.2) is arranged on the inner wall of the through hole; The lifting and adjusting assembly (3) also includes a fixed groove (3.4) arranged on the welding platform (1.1); the opening direction of the fixed groove (3.4) is arranged toward the accommodating groove; both ends of the threaded rod (3.2) are rotatably arranged on the two inner walls of the fixed groove (3.4); the output end of the second driving member (3.1) passes through the inner wall of the fixed groove (3.4) and is connected to the threaded rod (3.2); and the lifting block (3.3) is slidably mounted on the inner side of the fixed groove (3.4).

7. The aluminum alloy laser welding device according to claim 6, characterized in that: It also includes a protective box (1); the welding platform (1.1), the lifting and pressing assembly (2), the telescopic adjustment component (4), the angle adjustment assembly (5) and the laser welding gun (6) are all arranged in the protective box (1); the threaded rod (3.2) and the lifting block (3.3) in the lifting and adjusting assembly (3) are both arranged in the protective box (1), and the fixed end of the second driving member (3.1) is arranged outside the protective box (1), and its output end passes through the protective box (1) and is connected to the threaded rod (3.2); an openable and closable protective door (1.3) is arranged on the protective box (1); transparent glass is arranged on the protective door (1.3); and the area where the transparent glass corresponds to the accommodating cavity (1.2) and the area on the accommodating cavity (1.2) is brown transparent glass (1.4).

8. The aluminum alloy laser welding device according to claim 7, characterized in that: The lifting and pressing assembly (2) comprises at least two groups of lifting and pressing units; each group of the lifting and pressing units comprises a first electric telescopic rod (2.1) and a pressure block (2.2); one end of the first electric telescopic rod (2.1) is connected to the inner wall of the protection box (1), and the other end is telescopically arranged toward the workpiece to be welded; the pressure block (2.2) is arranged on the end of the first electric telescopic rod (2.1) that is telescopically arranged toward the workpiece to be welded; The lifting and pressing assembly (2) further comprises a soft pad (2.3); the soft pad (2.3) is arranged on a side of the pressing block (2.2) close to the workpiece to be welded.

9. The aluminum alloy laser welding device according to claim 1, characterized in that: The telescopic adjustment component (4) comprises a second electric telescopic rod.

10. An application method of the aluminum alloy laser welding device according to any one of claims 1 to 9, characterized in that: include: Step S1, placing at least two workpieces to be welded flat in the accommodating cavity (1.2); Step S2, using the lifting and pressing assembly (2) to respectively press each of the workpieces to be welded, and exposing the weld position between two adjacent workpieces to be welded; Step S3, using the lifting adjustment component (3) to adjust the telescopic adjustment component (4), and then the telescopic adjustment component (4) sequentially links the angle adjustment component (5) and the laser welding gun (6) to a desired working height; The angle adjustment component (5) is used to adjust the laser welding gun (6) to a desired working angle; the telescopic adjustment component (4) is used to adjust the angle adjustment component (5), and the angle adjustment component (5) is used to link the laser welding gun (6) to a desired working length, so that welding of the weld position is completed by the laser welding gun (6).

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