A welding torch and laser apparatus

Abstract

The utility model discloses a kind of welding torch and laser equipment, belong to laser processing equipment technical field.Welding torch includes the gun body, gun rod and gun head set gradually, gun body, gun rod and gun head are interconnected to form laser channel;Welding torch further includes rotating assembly, control assembly and detection assembly, the axis of rotating assembly is collinear with laser channel or parallel, can drive welding wire relative to laser channel rotation;Control assembly includes galvanometer mechanism and control mainboard, is located on laser channel, for reflecting laser beam;Detection assembly and control mainboard communication connection, detection assembly is used to detect the rotation angle of rotating assembly and transmit rotation angle signal to control mainboard, after the control mainboard receives signal, control the galvanometer mechanism rotates corresponding angle, to adjust the scanning direction of the laser beam, conveniently adjust the exit angle and scanning direction of laser beam.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to a welding torch and laser equipment. Background Technology

[0002] In laser welding, the emission angle and scanning direction of the laser beam have a significant impact on weld quality. When the scanning direction of the laser beam is perpendicular to the welding surface, it ensures that the focal point of the laser beam is at the center of the weld, thereby improving weld quality. Furthermore, aligning the laser beam scanning direction perpendicular to the weld allows for a more uniform distribution of laser energy across the weld's sides and center, improving weld formation and reducing surface fluctuations and inhomogeneities. This oscillating motion also helps suppress welding defects such as porosity. For example, when welding high-strength steel, a vertical oscillation trajectory can effectively reduce porosity. In addition, for welds with special structures or shapes, a laser scanning direction perpendicular to the weld allows for better adaptation to weld variations, improving weld adaptability and stability.

[0003] In related technologies, during the welding process, the welding torch body is fixedly installed, and its welding angle is fixed. This means that the welding torch can only maintain a single state during welding, thus only enabling the welding of welds at a single angle. For welding complex conditions involving multi-angle welds, operators need to manually rotate the torch body to adjust the welding angle and thus the laser beam emission angle. This results in inconsistent welding quality and affects the aesthetics of the weld. Utility Model Content

[0004] The purpose of this invention is to provide a welding torch and laser equipment that allows adjustment of the laser beam's emission angle without manually rotating the torch body, thereby improving welding quality and effect, and offering convenient operation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A welding torch includes a torch body, a torch shaft, and a torch head arranged sequentially, wherein the torch body, the torch shaft, and the torch head are interconnected to form a laser channel; the welding torch further includes:

[0007] A rotating component, whose axis is collinear or parallel to the laser channel, is capable of driving the welding wire to rotate relative to the laser channel;

[0008] The control components, including a galvanometer mechanism and a control motherboard, are located on the laser channel and are used to reflect the laser beam;

[0009] The detection component is communicatively connected to the control motherboard. The detection component is used to detect the rotation angle of the rotating component and transmit the rotation angle signal to the control motherboard. After receiving the signal, the control motherboard controls the galvanometer mechanism to rotate by the corresponding angle to adjust the scanning direction of the laser beam.

[0010] In some embodiments, the rotating component can be locked to the welding torch at at least two preset angles.

[0011] In some embodiments, the rotating assembly is connected between the gun head and the gun barrel, and the rotating assembly is rotatable relative to the gun barrel.

[0012] In some embodiments, the rotating assembly is connected between the gun barrel and the gun body, the gun head is connected to the rotating assembly via the gun barrel, and the rotating assembly is capable of rotating relative to the gun body.

[0013] In some embodiments, the rotating assembly includes a first extension, the gun body is provided with an annular mounting groove surrounding the laser channel, the first extension is annular and inserted into the annular mounting groove, and the first extension and the annular mounting groove are rotatable relative to each other;

[0014] The gun body is provided with a through hole communicating with the annular mounting groove, and the first extension section is provided with at least two limiting holes along the circumferential direction; the locking member passes through the through hole to lock into the limiting hole corresponding to the through hole, and in the unlocked state of the locking member, the first extension section can rotate within the annular mounting groove.

[0015] In some embodiments, the limiting hole is a threaded hole, the locking member has an external thread, and the locking member is threadedly connected to the threaded hole through the external thread; or, the limiting hole is a slot, the locking member is a spring snap, the locking member is installed in the through hole, and the spring snap can be engaged with the slot.

[0016] In some embodiments, a groove is formed between the periphery of the first extension and the sidewall of the annular mounting groove, and a retaining ring with an opening is engaged in the groove, wherein the groove and the retaining ring are rotatably connected.

[0017] In some embodiments, the detection component includes at least two sensors, which are disposed in at least two limiting holes in a one-to-one correspondence. Both sensors are communicatively connected to the control motherboard. The locking member can trigger the sensors, and the control motherboard can adjust the angle of the galvanometer mechanism based on the information fed back by the sensors.

[0018] In some embodiments, a fixing frame is provided on the rotating assembly;

[0019] The welding gun also includes a wire feeder, one end of which is disposed on the welding wire holder and fixed to the fixed frame, and the other end is disposed near the gun head;

[0020] The welding wire passes through the wire feeder and exits from the gun head.

[0021] A laser device comprising a welding torch as described in any of the preceding claims.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a welding torch and laser equipment. The laser beam from the laser generator enters the interior of the welding torch, i.e., the laser channel, from one side of the torch body. After being reflected by a control component set within the laser channel, it is output from the torch head. A rotating component is incorporated, allowing it to rotate relative to the laser channel. This rotation causes the welding wire to rotate with the component. Furthermore, a detection component detects the rotation angle of the rotating component and feeds the detection signal back to the control board. The control board then adjusts the angle of the galvanometer mechanism, thereby adjusting the scanning direction of the laser beam reflected by the galvanometer mechanism to be perpendicular to the weld seam. Taking welding with this torch as an example, during the welding process, the rotating component rotates according to the weld seam angle without requiring the torch body to rotate. This achieves simultaneous adjustment of the laser beam's output angle and scanning direction, enabling multi-angle welding while ensuring welding quality and providing convenient operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a welding torch in which the rotating component of the present invention is installed at a preset angle on the torch body according to a specific embodiment of the present invention.

[0025] Figure 2 yes Figure 1 A sectional view;

[0026] Figure 3 yes Figure 2 A magnified view of a portion of point I;

[0027] Figure 4 This is a schematic diagram of the adjustment module provided in a specific embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of a welding torch in which the rotating component of the present invention is installed on the torch body at another preset angle, according to a specific embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of a welding torch with a rotating component installed on the torch body at another preset angle, according to a specific embodiment of this utility model.

[0030] Figure 7This is a flowchart of the adjustment method for the welding torch provided in a specific embodiment of this utility model.

[0031] In the picture:

[0032] 100. Gun body; 110. Annular mounting groove; 120. Through hole; 130. Slot; 140. Snap ring;

[0033] 200. Gun barrel; 300. Gun head;

[0034] 400. Rotating assembly; 410. First connector; 411. First extension; 412. Limiting hole; 413. Second extension; 420. Second connector;

[0035] 500. Locking components;

[0036] 600. Control components;

[0037] 700. Wire feeder; 710. Welding wire channel; 720. Fixing frame; 721. First support component; 722. Second support component; 723. Fastener; 730. Welding wire;

[0038] 800. Laser channel; 810. Bend;

[0039] 900, laser beam;

[0040] 1000. The axis of the welding torch. Detailed Implementation

[0041] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] like Figures 1-6 As shown, this embodiment provides a welding torch, including a torch body 100, a torch shaft 200, and a torch head 300 arranged sequentially. The torch body 100, torch shaft 200, and torch head 300 are arranged sequentially and connected to form a laser channel 800. The welding torch also includes a rotating component 400, a detection component, and a control component 600. The axis of the rotating component 400 is collinear with or parallel to the laser channel 800, and can drive the welding wire 730 to rotate relative to the laser channel 800. The control component 600 includes a galvanometer mechanism and a control mainboard, and is disposed on the laser channel 800 for reflecting the laser beam 900. The detection component and the control mainboard are communicatively connected. The detection component is used to detect the rotation angle of the rotating component 400 and transmit the rotation angle signal to the control mainboard. After receiving the signal, the control mainboard controls the galvanometer mechanism to rotate by the corresponding angle to adjust the scanning direction of the laser beam 900.

[0045] The laser beam 900 from the laser generator enters the welding torch from one side (tail end) of the torch body 100, specifically into the laser channel 800. After being reflected by the control component 600 within the laser channel 800, it is output from the torch head 300. A rotating component 400 is incorporated, allowing it to rotate relative to the laser channel 800. This rotation causes the welding wire 730 to rotate with the component. Furthermore, a detection component detects the rotation angle of the rotating component 400 and feeds the signal back to the control board, which adjusts the angle of the galvanometer mechanism. This adjusts the scanning direction of the laser beam 900 reflected by the galvanometer mechanism, ensuring it is perpendicular to the weld seam. Taking welding as an example, during the welding process, the rotating component 400 rotates according to the weld seam angle without requiring the torch body 100 to rotate. This allows for simultaneous adjustment of both the emission angle and scanning direction of the laser beam 900, enabling multi-angle welding while ensuring welding quality and convenient operation.

[0046] The galvanometer mechanism can be a one-dimensional galvanometer, a two-dimensional galvanometer, or something else.

[0047] The rotating component 400 can be locked to the welding torch at at least two preset angles, corresponding to welding of welds at at least two angles. The more preset angles there are, the more installation angles of the rotating component 400 relative to the welding torch, and the more flexible the adjustment of the welding torch, enabling it to adapt to welding of welds with more complex angle changes. Specifically, the preset angles are set according to requirements. In one embodiment, such as... Figure 1 , Figure 5 and Figure 6 As shown, the rotating component 400 can be locked onto the gun body 100 at at least three preset angles. By locking the rotating component 400 onto the gun body 100, the welding wire 730 is locked relative to the gun body 100, thereby ensuring welding stability.

[0048] Optionally, the welding wire 730 is threaded through the gun head 300, and the rotating assembly 400 is connected to the gun head 300. The gun head 300 rotates with the rotating assembly 400 to adjust the emission angle of the laser beam 900. The rotating assembly 400 and the welding wire 730 are associated through the gun head 300, enabling the welding wire 730 to rotate with the rotating assembly 400 through the gun head 300.

[0049] One end of the rotating component 400 is connected to the gun head 300, and the other end is fixed to the welding gun. Specifically, the rotating component 400 can be directly connected to the gun head 300 or indirectly connected to the gun head 300, depending on the actual needs.

[0050] In one embodiment, the rotating component 400 is connected between the gun head 300 and the gun rod 200, and the rotating component 400 is rotatable relative to the gun rod 200. That is, the gun rod 200 is a fixed structure on the welding gun, and the gun head 300 and the rotating component 400 are connected as an adjustment module. The rotation of the rotating component 400 relative to the gun rod 200 causes the gun head 300 to rotate accordingly, that is, the adjustment module rotates relative to the gun rod 200.

[0051] In one embodiment, a rotating assembly 400 is connected between the gun barrel 200 and the gun body 100, and the gun head 300 is connected to the rotating assembly 400 via the gun barrel 200. The rotating assembly 400 is capable of rotating relative to the gun body 100. That is, the gun body 100 is a fixed structure on the welding gun, and the rotating assembly 400, gun barrel 200, and gun head 300 are connected to form an adjustment module. The rotating assembly 400 is capable of rotating relative to the gun body 100, changing the relative angle between the adjustment module and the gun body 100. The adjustment module rotates with the rotating assembly 400 relative to the gun body 100, thereby adjusting the emission angle of the laser beam 900.

[0052] like Figure 1 and Figure 2 As shown, in one embodiment, the output port of the gun head 300 for outputting the laser beam 900 is eccentrically set. The gun head 300 rotates with the adjustment module, thereby changing the position of the output port relative to the axis 1000 of the welding gun, thereby adjusting the emission angle of the laser beam 900.

[0053] like Figure 2 As shown, the rotating assembly 400 includes a first connector 410 and a second connector 420. The first connector 410 connects to the gun body 100, and the second connector 420 connects the first connector 410 and the gun barrel 200. By setting the rotating assembly 400 into separate parts, the structure of each part is simple, making it convenient to manufacture and assemble.

[0054] The first connector 410 includes a first extension 411 and a second extension 413 extending to both ends along its own axis. The first extension 411 is connected to the gun body 100, and the second extension 413 is connected to the second connector 420. The structural shapes of the first extension 411, the second extension 413 and the second connector 420 are adapted to the structural shapes of the gun body 100 and the gun barrel 200.

[0055] like Figures 2-4 As shown, the gun body 100 has an annular mounting groove 110 surrounding the laser channel 800. The first extension section 411 is annular and is inserted into the annular mounting groove 110. The first extension section 411 and the annular mounting groove 110 can rotate relative to each other. The gun body 100 has a through hole 120 communicating with the annular mounting groove 110. The first extension section 411 has at least two limiting holes 412 along the circumferential direction. The locking member 500 passes through the through hole 120 to lock into the limiting hole 412 corresponding to the through hole 120. When the locking member 500 is unlocked, the first extension section 411 can rotate within the annular mounting groove 110. The first extension section 411 can rotate so that one of the limiting holes 412 aligns with the through hole 120, and is then locked by the locking member 500, thereby locking the rotating component 400 to the gun body 100 at a preset angle. When the other limiting hole 412 aligns with the through hole 120 and is locked by the locking member 500, the rotating component 400 can be locked to the gun body 100 at another preset angle. By setting at least two limiting holes 412, the rotating component 400 can be locked to the gun body 100 at at least two preset angles, enabling welding of at least two angle welds. The number of limiting holes 412 can be two, three, four, or more, and the intervals between the limiting holes 412 can be equal or unequal, depending on the requirements.

[0056] like Figure 2As shown, the second extension section 413 is sleeved on the gun barrel 200, and the second connecting member 420 is sleeved on the outside of the second extension section 413 and the gun barrel 200, and is connected to the second extension section 413 and the gun barrel 200 respectively. In one embodiment, the second extension section 413 and the gun barrel 200 are inserted together, and both the second extension section 413 and the gun barrel 200 have external threads. The second connecting member 420 has internal threads that are adapted to the external threads of the second extension section 413 and the gun barrel 200 respectively. The internal threads and external threads are threadedly connected, realizing the connection between the second connecting member 420 and the second extension section 413 and the gun barrel 200. The above method provides a reliable connection and facilitates assembly and disassembly.

[0057] like Figure 3 Optionally, the limiting hole 412 is a threaded hole, and the locking member 500 has an external thread. For example, if the locking member 500 is a set screw, it is threadedly connected to the threaded hole via the external thread. The locking member 500 is threadedly connected to the threaded hole to achieve locking, and disengages from the threaded hole to achieve unlocking, making operation convenient. Optionally, the limiting hole 412 is a slot 130, and the locking member 500 is a spring latch. The locking member 500 is installed in the through hole 120, and the spring latch can engage with the slot 130. Pressing the spring latch overcomes the spring force, compressing it inward and engaging with the slot 130 to achieve locking; pressing the spring latch again overcomes the spring force, causing the spring latch to disengage from the slot 130, and the spring latch resets under the spring's restoring force, achieving unlocking, making operation convenient. In other embodiments, the limiting hole 412 and the locking member 500 can have other structures, as long as they are connected.

[0058] The detection component includes at least two sensors (not shown in the figure), each corresponding to one of at least two limiting holes 412. Both sensors are communicatively connected to the control mainboard. The locking element 500 can trigger the sensors, and the control mainboard can adjust the angle of the galvanometer mechanism based on the sensor feedback. By dividing the detection component into at least two sensors, each corresponding to a preset angle of the rotating component 400 within the limiting holes 412, and each preset angle having its own dedicated sensor, each sensor is specifically matched to a preset angle of the rotating component 400, rather than relying on a single sensor to cover all preset angles of the rotating component 400. This ensures accurate target matching, reduces the probability of erroneous sensor triggering, and improves reliability.

[0059] like Figure 2 As shown, the gun body 100 is bent, and the galvanometer mechanism is located at the bend 810 of the laser channel 800 formed by the gun body 100. The laser beam 900 from the laser generator enters the welding gun from the gun body 100 into the laser channel 800 on one side of the bend 810, is reflected by the galvanometer mechanism inside the gun body 100 to the laser channel 800 on the other side of the bend 810, and is then output from the gun head 300.

[0060] Optionally, the gun head 300, gun rod 200 and gun body 100 all have through holes, and the center lines of the through holes of the gun head 300, gun rod 200 and gun body 100 are all collinear with the axis 1000 of the welding gun, and the three are connected to form a laser channel 800.

[0061] Specifically, the sensor installed in the limiting hole 412 is connected to the control main board and feeds back information to the control main board. The control main board issues corresponding control commands based on the information from the corresponding sensor to adjust the angle of the galvanometer mechanism.

[0062] When using the welding torch, unlock the locking component 500, rotate the rotating assembly 400 (adjustment module) to align the laser beam 900 with the requirements, and then lock the locking component 500. Simultaneously, the sensor inside the corresponding limit hole 412 transmits information to the control mainboard. Based on this information, the control mainboard issues control commands to adjust the galvanometer mechanism. The operator only needs to rotate the rotating assembly 400 to change the direction of the adjustment module, ensuring the laser scanning direction is perpendicular to the weld seam. This achieves multi-angle welding without requiring the torch body 100 to rotate.

[0063] like Figure 3 As shown, a groove 130 is formed between the periphery of the first extension segment 411 and the sidewall of the annular mounting groove 110. A retaining ring 140 with an opening is engaged in the groove 130, and the groove 130 and the retaining ring 140 are rotatably connected. In one embodiment, both the first extension segment 411 and the annular mounting groove 110 have grooves, and the grooves of the two are correspondingly arranged to form the groove 130. The retaining ring 140 is held tightly in the groove of the first extension segment 411. After unlocking, the retaining ring 140 is still simultaneously located in the groove of the first extension segment 411 and the groove of the annular mounting groove 110. The retaining ring 140 and the first extension segment 411 rotate simultaneously relative to the annular mounting groove 110, and the axial positioning of the first extension segment 411 and the annular mounting groove 110 is achieved, so that the rotating component 400 will not fall off during rotation. In other embodiments, the groove 130 may be provided only on the first extension segment 411 or only on the annular mounting groove 110, and is not limited. If the slot 130 is provided on the annular mounting groove 110, the retaining ring 140 hugs the periphery of the first extension section 411 and is engaged in the slot 130, thus achieving axial limiting. Since the retaining ring 140 has an opening, it is elastic. Under the action of external force, the opening becomes smaller and the retaining ring 140 contracts, thereby realizing the disassembly and installation of the first extension section 411 and the annular mounting groove 110.

[0064] like Figure 2 and Figure 5As shown, a fixing frame 720 is provided on the rotating assembly 400; the welding gun also includes a wire feeder 700, one end of which is located on the wire holder and fixed to the fixing frame 720, and the other end is located near the gun head 300; the welding wire 730 passes through the welding wire channel 710 of the wire feeder 700 and is output from the gun head 300. The wire feeder 700 is fixed to the rotating assembly 400 by the fixing frame 720. When the adjustment module rotates, the wire feeder 700 connected to the adjustment module rotates accordingly, synchronously realizing the rotation of the welding wire 730 relative to the gun body 100. Optionally, the wire feeder 700 is connected to the first connector 410 via a fixing frame 720. The fixing frame 720 includes a first support 721 and a second support 722. The first support 721 is connected to the wire feeder 700, and the second support 722 is connected to the first connector 410. The first support 721 and the second support 722 are connected by fasteners 723 such as bolts. Loosening the bolts allows the angle of the first support 721 and the second support 722 to be adjusted, thereby adjusting the angle between the wire feeder 700 and the gun head 300, and thus adjusting the wire feeding angle of the welding wire 730.

[0065] The specific structures of the gun head 300, gun barrel 200, gun body 100, wire feeder 700, and galvanometer mechanism can all refer to existing technologies and will not be described in detail here.

[0066] This embodiment also provides a laser device, including the welding torch as described above. By using the welding torch, operational convenience is improved. The laser welding device also includes a laser generator connected to the welding torch, used to generate a laser beam 900, which is then output from the torch head 300 through the laser channel 800. Specifically, the laser device can be used for welding, cutting, or cleaning, etc.

[0067] like Figure 7 As shown, this embodiment also provides a method for adjusting the above-mentioned welding torch, including the following steps:

[0068] S100, Twist and rotate the assembly 400 to rotate the assembly 400 relative to the laser channel 800;

[0069] S200 and welding wire 730 rotate with the rotating assembly 400;

[0070] S300, the detection component detects the rotation angle of the rotating component 400 and sends a signal to the control motherboard;

[0071] S400: The main control board controls the galvanometer mechanism to rotate by the corresponding angle according to the signal.

[0072] S500, the laser beam 900 passes through the laser channel 800 and is reflected by the galvanometer mechanism, thereby adjusting the scanning direction of the laser beam 900.

[0073] By manually turning the rotating component 400, on the one hand, the welding wire 730 is driven to rotate with the rotating component 400; on the other hand, the detection component and the control main board automatically adjust the angle of the galvanometer mechanism according to the rotation of the rotating component 400. No manual adjustment is required. That is, the welding wire 730 and the galvanometer mechanism can be adjusted simultaneously by simply turning the rotating component 400, which is simple and convenient to operate.

[0074] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A welding torch, characterized in that, The welding torch includes a gun body (100), a gun rod (200), and a gun head (300) arranged sequentially, wherein the gun body (100), the gun rod (200), and the gun head (300) are interconnected to form a laser channel (800); the welding torch also includes: The rotating component (400) has its axis collinear with or parallel to the laser channel (800) and can drive the welding wire (730) to rotate relative to the laser channel (800); The control component (600), including a galvanometer mechanism and a control motherboard, is disposed on the laser channel (800) and is used to reflect the laser beam (900); The detection component is communicatively connected to the control motherboard. The detection component is used to detect the rotation angle of the rotating component (400) and transmit the rotation angle signal to the control motherboard. After receiving the signal, the control motherboard controls the galvanometer mechanism to rotate by the corresponding angle to adjust the scanning direction of the laser beam (900).

2. The welding torch according to claim 1, characterized in that, The rotating component (400) can be locked to the welding torch at at least two preset angles.

3. The welding torch according to claim 1, characterized in that, The rotating assembly (400) is connected between the gun head (300) and the gun barrel (200), and the rotating assembly (400) is capable of rotating relative to the gun barrel (200).

4. The welding torch according to claim 1, characterized in that, The rotating assembly (400) is connected between the gun barrel (200) and the gun body (100), and the gun head (300) is connected to the rotating assembly (400) through the gun barrel (200). The rotating assembly (400) is capable of rotating relative to the gun body (100).

5. The welding torch according to claim 4, characterized in that, The rotating assembly (400) includes a first extension (411), and the gun body (100) is provided with an annular mounting groove (110) surrounding the laser channel (800). The first extension (411) is annular and is inserted into the annular mounting groove (110). The first extension (411) and the annular mounting groove (110) are capable of rotating relative to each other. The gun body (100) is provided with a through hole (120) communicating with the annular mounting groove (110), and the first extension section (411) is provided with at least two limiting holes (412) along the circumferential direction; the locking member (500) passes through the through hole (120) to lock into the limiting hole (412) corresponding to the through hole (120), and in the unlocked state of the locking member (500), the first extension section (411) can rotate within the annular mounting groove (110).

6. The welding torch according to claim 5, characterized in that, The limiting hole (412) is a threaded hole, and the locking member (500) is provided with an external thread. The locking member (500) is threadedly connected to the threaded hole through the external thread; or, the limiting hole (412) is a slot (130), and the locking member (500) is a spring buckle. The locking member (500) is installed in the through hole (120), and the spring buckle can be engaged with the slot (130).

7. The welding torch according to claim 6, characterized in that, A slot (130) is formed between the periphery of the first extension section (411) and the side wall of the annular mounting groove (110), and a retaining ring (140) with an opening is engaged in the slot (130), and the slot (130) and the retaining ring (140) are rotatably connected.

8. The welding torch according to claim 5, characterized in that, The detection component includes at least two sensors, which are respectively disposed in at least two limiting holes (412). At least two sensors are communicatively connected to the control motherboard. The locking member (500) can trigger the sensors. The control motherboard can adjust the angle of the galvanometer mechanism according to the information fed back by the sensors.

9. The welding torch according to claim 1, characterized in that, A fixing bracket (720) is provided on the rotating assembly (400); The welding torch also includes a wire feeder (700), one end of which is disposed on the welding wire holder and fixed to the fixing frame (720), and the other end is disposed near the torch head (300). The welding wire (730) passes through the wire feeder (700) and exits from the gun head (300).

10. A laser device, characterized in that, Including the welding torch as described in any one of claims 1-9.

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