Multi-angle adjustable laser welding machine

Abstract

The utility model discloses a multi-angle adjustable laser welding machine which comprises a laser head and an arc welding gun, a connecting end is formed at the upper end of the laser head and connected with a two-dimensional / three-dimensional moving mechanism, the laser head is provided with a track arranged in the circumferential direction, a first moving mechanism is arranged corresponding to the track, and the arc welding gun is connected with the track. The first moving mechanism is used for being connected with the arc welding gun and controlling the arc welding gun to move along the track, the second moving mechanism is connected with the arc welding gun and used for adjusting the inclination angle of the arc welding gun relative to the laser head, and the first moving mechanism is matched with the track to adjust the circumferential position of the arc welding gun relative to the laser head. And meanwhile, angle adjustment of the arc welding gun relative to the laser head is achieved in cooperation with the second moving mechanism, the flexibility degree of the arc welding gun is greatly improved, and the welding requirements of different workpieces are met.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a multi-angle adjustable laser welding machine. Background Art

[0002] For laser processing of some thick plate materials, a laser head composite arc welding gun can now be used to reduce the power requirement of a single laser head through the interaction between the laser and the arc, so that good processing effects can be obtained at lower power.

[0003] However, most of today's laser head composite arc welding guns directly fix the arc welding gun on the laser head. When this type of composite structure is facing the adjustment of the laser head in the Z-axis direction, it is often necessary to stop the machine and manually adjust the welding points of the arc welding gun. In view of this, there is also a method in the prior art to control the arc welding gun by a first motor to adjust the angle relative to the laser head, and this method is only suitable for the processing requirements of low-axis laser cutting. When facing high-flexibility laser processing such as three-dimensional five-axis, since the processing environment often requires welding at the side of the material and other positions, this type of composite structure still has the defect of poor flexibility of the arc welding gun, and therefore needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a laser welding machine with high flexibility and capable of multi-angle adjustment.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-angle adjustable laser welding machine comprises a laser head, wherein the upper end of the laser head forms a connection end and is connected to a two-dimensional / three-dimensional moving mechanism.

[0007] An arc welding gun, wherein the laser head is provided with a circumferentially arranged track and a first moving mechanism is provided corresponding to the track, the arc welding gun is connected to the track, and the first moving mechanism is used to connect to the arc welding gun and control the arc welding gun to move along the track.

[0008] The second moving mechanism is connected to the arc welding gun, and the second moving mechanism is used to adjust the tilt angle of the arc welding gun relative to the laser head.

[0009] As a further improvement of the present utility model, the first moving mechanism includes a first motor, the arc welding gun includes a connecting seat, the track is a circumferentially arranged annular groove on the laser head, a connecting arm is provided on the connecting seat, a limiting ring is provided at one end of the connecting arm away from the connecting seat, the limiting ring is sleeved with an annular groove and is slidably connected to the annular groove to limit the connecting seat to only circumferential movement relative to the laser head, the limiting ring is provided with a gear ring, and the output end of the first motor is provided with a gear and meshes with the gear ring.

[0010] As a further improvement of the utility model, the output end of the laser head is provided with a coupling and is connected to the gear through the coupling.

[0011] As a further improvement of the utility model, the arc welding gun also includes a gun body, and the gun body is rotatably connected to the connecting seat.

[0012] As a further improvement of the utility model, a mounting hole is provided on the connecting seat, a mounting ring is fixedly connected to the outside of the gun body, the mounting ring is arranged corresponding to the mounting hole, a rotating rod is symmetrically provided on the outside of the mounting ring, the rotating rod passes through the connecting seat and is rotatably connected to the mounting hole.

[0013] As a further improvement of the present invention, the second moving mechanism is a second motor, the second motor is installed on the connecting seat, and the output end of the second motor is connected to the rotating rod.

[0014] As a further improvement of the utility model, the laser head includes a first section and a second section connected to each other, and the ends of the first section and the second section close to each other form an annular groove. When the first section and the second section are connected to each other, the grooves on both sides are spliced ​​together to form an annular groove.

[0015] The beneficial effects of the utility model are as follows: the circumferential position of the arc welding gun relative to the laser head is adjusted by setting the first moving mechanism in coordination with the track, and the angle of the arc welding gun relative to the laser head is adjusted in coordination with the second moving mechanism, thereby greatly improving the flexibility of the arc welding gun and adapting to the welding requirements of different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall installation of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation of the arc welding gun and the connecting seat of the utility model;

[0018] Figure 3 This is a schematic diagram of an arc welding gun of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the first and second sections of the utility model.

[0020] Figure numerals: 1. laser head; 2. connecting end; 3. arc welding gun; 4. first moving mechanism; 5. second moving mechanism; 6. first motor; 7. connecting seat; 8. ring groove; 9. connecting arm; 10. limiting ring; 11. gear ring; 12. coupling; 13. gun body; 14. mounting hole; 15. mounting ring; 16. rotating rod; 17. second motor; 18. first section; 19. second section; 20. groove. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.

[0022] like Figure 1-4 As shown, a multi-angle adjustable laser welding machine includes a laser head 1. A connection end 2 is formed at the upper end of the laser head 1 and is connected to a two-dimensional / three-dimensional moving mechanism. The two-dimensional / three-dimensional moving mechanism is used to drive the laser head 1 to move in two-dimensional / three-dimensional directions. The two-dimensional / three-dimensional moving mechanism is a prior art and will not be described in detail here.

[0023] It also includes an arc welding gun 3. The laser head 1 is provided with a circumferentially arranged track and a first moving mechanism 4 is provided corresponding to the track. The arc welding gun 3 is connected to the track. The first moving mechanism 4 is used to connect to the arc welding gun 3 and control the arc welding gun 3 to move along the track.

[0024] The laser head 1 further includes a second moving mechanism 5 , which is connected to the arc welding gun 3 and is used to adjust the tilt angle of the arc welding gun 3 relative to the laser head 1 .

[0025] When in use, the first moving mechanism 4 can be used to adjust the circumferential movement of the arc welding gun 3 around the laser head 1, thereby adjusting the position of the arc welding gun 3 relative to the laser head 1. The arc welding gun 3 can be moved to the side of the laser head 1 away from the material to reduce the adverse effects of the laser head 1 and the arc welding gun 3 on the processing point due to their own volume during the processing, thereby facilitating the welding process.

[0026] At the same time, the second moving mechanism 5 can be adjusted according to the change of the laser focus, so that the inclination angle between the arc welding gun 3 and the laser head 1 can be adjusted, thereby adjusting the position of the overlapping point of the welding flame of the arc welding gun 3 and the laser beam to meet the focus welding needs at different positions.

[0027] Preferably, the first moving mechanism 4 includes a first motor 6, the arc welding gun 3 includes a connecting seat 7, the track is a ring groove 8 circumferentially arranged on the laser head 1, a connecting arm 9 is provided on the connecting seat 7, and a limiting ring 10 is provided at the end of the connecting arm 9 away from the connecting seat 7. The limiting ring 10 is sleeved on the ring groove 8 and is slidably connected to the ring groove 8 to limit the connecting seat 7 to only circumferential movement relative to the laser head 1. A gear ring 11 is provided on the limiting ring 10, and a gear is provided at the output end of the first motor 6 and meshes with the gear ring 11.

[0028] When in use, the first motor 6 drives the gear to rotate, and then drives the limit ring 10 to rotate through the ring gear 11 to achieve the movement of the connecting seat 7. The drive of the first motor 6 can ensure precise control of the position of the connecting seat 7 to improve the overall accuracy.

[0029] Preferably, a coupling 12 is provided at the output end of the first motor 6 and is connected to the gear through the coupling 12 .

[0030] By setting the coupling 12, the length of the output end of the first motor 6 can be extended, and then the first motor 6 can be set away from the arc welding gun 3 to adjust the position of the first motor 6 to optimize the overall structure and avoid the device being piled up at the front end of the laser head 1, causing the front end volume to be too large and affecting processing.

[0031] Preferably, the arc welding gun 3 further includes a gun body 13 , and the gun body 13 is rotatably connected to the connecting seat 7 .

[0032] The rotation connection of the gun body 13 can facilitate the control of the tilt angle of the gun body 13 relative to the laser head 1 .

[0033] Preferably, a mounting hole 14 is provided on the connecting seat 7, a mounting ring 15 is fixedly connected to the outside of the gun body 13, the mounting ring 15 is arranged corresponding to the mounting hole 14, a rotating rod 16 is symmetrically provided on the outside of the mounting ring 15, the rotating rod 16 passes through the connecting seat 7 and is rotatably connected to the mounting hole 14.

[0034] The arrangement of the mounting hole 14 and the mounting ring 15 can facilitate the installation of the arc welding gun 3 .

[0035] Preferably, the second moving mechanism 5 is a second motor 17 , the second motor 17 is installed with the connecting seat 7 , and the output end of the second motor 17 is connected with the rotating rod 16 .

[0036] The control method of the second motor 17 can realize precise control of the tilt angle of the arc welding gun 3 relative to the laser head 1, so as to improve the overall accuracy.

[0037] Preferably, the laser head 1 includes a first section 18 and a second section 19 which are connected to each other, and the first section 18 and the second section 19 are connected and fixed to each other by bolts. An annular groove 20 is formed at one end of the first section 18 and the second section 19 which are close to each other. When the first section 18 and the second section 19 are connected to each other, the grooves 20 on both sides are spliced ​​together to form an annular groove.

[0038] The arrangement of the mutually connected matching grooves 20 of the first section 18 and the second section 19 can facilitate the installation of the limiting ring 10 .

[0039] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A multi-angle adjustable laser welding machine, characterized in that: It comprises a laser head (1), wherein the upper end of the laser head (1) forms a connection end (2) and is connected to a two-dimensional / three-dimensional moving mechanism; An arc welding gun (3), wherein the laser head (1) is provided with a circumferentially arranged track and a first moving mechanism (4) is provided corresponding to the track, the arc welding gun (3) is connected to the track, and the first moving mechanism (4) is used to connect to the arc welding gun (3) and control the arc welding gun (3) to move along the track; A second moving mechanism (5), the second moving mechanism (5) is connected to the arc welding gun (3), and the second moving mechanism (5) is used to adjust the tilt angle of the arc welding gun (3) relative to the laser head (1).

2. The multi-angle adjustable laser welding machine according to claim 1, characterized in that: The first moving mechanism (4) comprises a first motor (6), the arc welding gun (3) comprises a connecting seat (7), the track is a ring groove (8) circumferentially arranged on the laser head (1), a connecting arm (9) is provided on the connecting seat (7), a limiting ring (10) is provided at one end of the connecting arm (9) away from the connecting seat (7), the limiting ring (10) is sleeved on the ring groove (8) and is slidably connected to the ring groove (8) to limit the connecting seat (7) to only circumferential movement relative to the laser head (1), the limiting ring (10) is provided with a gear ring (11), and the output end of the first motor (6) is provided with a gear and meshes with the gear ring (11).

3. The multi-angle adjustable laser welding machine according to claim 2, characterized in that: The output end of the first motor (6) is provided with a coupling (12) and is connected to the gear via the coupling (12).

4. The multi-angle adjustable laser welding machine according to claim 1, characterized in that: The arc welding gun (3) also includes a gun body (13), and the gun body (13) is rotatably connected to the connecting seat (7).

5. The multi-angle adjustable laser welding machine according to claim 4, characterized in that: The connecting seat (7) is provided with a mounting hole (14); a mounting ring (15) is fixedly connected to the outside of the gun body (13); the mounting ring (15) is arranged corresponding to the mounting hole (14); a rotating rod (16) is symmetrically arranged on the outside of the mounting ring (15); the rotating rod (16) passes through the connecting seat (7) and is rotatably connected to the mounting hole (14).

6. The multi-angle adjustable laser welding machine according to claim 4, characterized in that: The second moving mechanism (5) is a second motor (17), the second motor (17) is installed on the connecting seat (7), and the output end of the second motor (17) is connected to the rotating rod (16).

7. The multi-angle adjustable laser welding machine according to claim 2, characterized in that: The laser head (1) comprises a first section (18) and a second section (19) which are connected to each other. The first section (18) and the second section (19) are close to each other at one end and both form an annular groove (20). When the first section (18) and the second section (19) are connected to each other, the grooves (20) on both sides are spliced ​​together to form an annular groove (8).

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