Handheld laser welding machine and welding method thereof

Abstract

The invention discloses a handheld laser welding machine and a welding method thereof, and relates to the technical field of laser welding machines. Comprising a machine body, and a welding part and a handheld part are installed outside the machine body; the protection mechanism comprises a center rod, an adjusting bent rod is installed on the top of the center rod, a connector is installed on the outer portion of the adjusting bent rod, and a protective mirror is installed on the outer portion of the connector; the protection mechanism further comprises a third adjusting rod, a blocking plate is installed outside the third adjusting rod, the blocking plate is driven by the third adjusting rod to push the protective mirror, and the protective mirror is overturned outside the connector. A first connecting base and a second connecting base are installed outside the machine body, the protection mechanism is connected with the second connecting base, a winding mechanism is arranged in the first connecting base, a first magnetic sheet is arranged on the upper surface of the machine body, and according to the handheld laser welding machine and the welding method thereof, the purpose of improving the use efficiency of equipment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding machines, and particularly to a handheld laser welding machine and a welding method thereof. Background Art

[0002] A laser welding machine, also often called a laser welder or a laser beam welder, is a machine used in laser welding for material processing. Laser welding utilizes high-energy laser pulses to locally heat a small area of the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for welding thin-walled materials and precision parts, and can achieve spot welding, butt welding, lap welding, seal welding, etc. It has a high depth-to-width ratio, a small weld width, a small heat-affected zone, small deformation, a fast welding speed, a flat and beautiful weld, and requires no treatment or only simple treatment after welding. The weld quality is high, there are no pores, it can be precisely controlled, the focused light spot is small, the positioning accuracy is high, and it is easy to achieve automation.

[0003] In the invention patent with the authorization announcement number CN221019231U, a handheld laser welding machine is disclosed. By opening a receiving cavity at the bottom of the grip, the bottom cover is connected to the outside of the receiving cavity by inserting a plug rod into a slot. In this way, different welding nozzles can be placed inside the receiving cavity for carrying, and the welding nozzle can be taken out for use by pulling off the bottom cover during use. However, when using the welding machine, since there is no protective barrier plate between the welding machine and the user, the user directly looks at the laser with both eyes, which is likely to cause flash damage to the user's eyes. Summary of the Invention

[0004] To overcome the problem that when using the welding machine, since there is no protective barrier plate between the welding machine and the user, the user directly looks at the laser with both eyes, which is likely to cause flash damage to the user's eyes, the present invention provides a handheld laser welding machine, including a machine body, and a welding part and a handheld part are installed on the outside of the machine body;

[0005] A protection mechanism, the protection mechanism includes a central rod, an adjusting bent rod is installed at the top of the central rod, a joint is installed on the outside of the adjusting bent rod, and a protective mirror is installed on the outside of the joint;

[0006] The protection mechanism further includes a third adjusting rod, a plug plate is installed on the outside of the third adjusting rod, the plug plate drives the protective mirror under the drive of the third adjusting rod, and the protective mirror flips on the outside of the joint.

[0007] Preferably, a first connecting seat and a second connecting seat are installed on the outside of the machine body, the protection mechanism is connected to the second connecting seat, a winding mechanism is arranged inside the first connecting seat, a plurality of first magnetic pieces are arranged on the upper surface of the machine body, the third adjusting rod is installed on the outside of the central rod, and a card slot is opened inside the protective mirror.

[0008] Preferably, the protection mechanism further includes:

[0009] A fixed cylinder installed inside the second connecting seat, with a moving column slidably connected inside the fixed cylinder;

[0010] A circular plate installed outside the moving column, with second adjusting rods installed at both the top and bottom of the circular plate, and magnetic blocks installed outside both of the second adjusting rods;

[0011] A first adjusting rod installed outside the circular plate, connected to the central rod, and an adjusting component installed at the bottom of the central rod.

[0012] Preferably, the adjusting component includes:

[0013] A fourth adjusting rod installed at the bottom of the central rod;

[0014] A protective frame with ventilation grooves opened on its side wall, and a cushion plate installed inside the protective frame, with the cushion plate being thick at the edges and thin in the middle;

[0015] An extension mirror installed inside the card slot, with multiple extension mirrors provided and symmetrically arranged.

[0016] Preferably, the winding mechanism includes:

[0017] A first card seat installed inside the first connecting seat, with a first adjusting column provided inside the first card seat, and a telescopic component installed outside the first adjusting column;

[0018] A connecting rod installed outside the first card seat, with a second card seat installed at the end of the connecting rod away from the first card seat, with multiple second card seats and connecting rods provided, and a channel opened inside the second card seat.

[0019] Preferably, the winding mechanism further includes:

[0020] A connecting plate provided outside the telescopic component, with a through groove opened inside the connecting plate, and a second adjusting column installed outside the connecting plate;

[0021] A top plate installed outside the second adjusting column, with a third adjusting column connected to the outside of the top plate, and a card slot opened inside the top plate;

[0022] A push rod installed outside the third adjusting column, with the push rod being L-shaped and a clamping rod provided at the top of the push rod.

[0023] Preferably, the winding mechanism further includes:

[0024] A second magnetic sheet, which is installed outside the second card seat. There are two second magnetic sheets, which are symmetrically arranged;

[0025] A magnetic plate, which is arranged outside the second card seat, and a lever is installed outside the magnetic plate.

[0026] Preferably, the telescopic assembly includes:

[0027] A cross slot, which is opened inside the first card seat, and the first adjusting column is installed inside the cross slot;

[0028] A central column, which is connected to the first adjusting column. A rubber rod is installed outside the central column. There are four rubber rods, which are evenly arranged. A telescopic rod is installed at the bottom of the central column, and the telescopic rod is connected to the connecting plate;

[0029] A connecting block, which is installed outside the first adjusting column, and the connecting block is connected to the magnetic plate.

[0030] A welding method for a handheld laser welder includes the following steps:

[0031] S1. Before using the device, adjust the protection mechanism and rotate the protective mirror and the protective frame;

[0032] S2. Adjust the winding mechanism and manually wind the cable at the bottom of the handheld part around the outside of the winding mechanism;

[0033] S3. According to the welding habit of the worker, adjust the protection mechanism, adjust the positions of the protective mirror and the protective frame, turn on the welder, and perform welding work;

[0034] S4. After welding, adjust the protection mechanism to protect the welding part, and adjust the winding mechanism to loosen and remove the cable.

[0035] The present invention provides a handheld laser welder and its welding method. It has the following beneficial effects:

[0036] 1. For this handheld laser welder and its welding method, by setting the protection mechanism, the position of the protective mirror is adjusted. When using the welder, since there is no protective railing between the welder and the user, the user's eyes directly face the laser, which is likely to cause flicker damage to the user's eyes. Therefore, the protection mechanism is set. The user can manually adjust the length of the third adjusting rod according to the usage habit to adjust the position of the plug plate. The plug plate pushes the protective mirror to flip. By adjusting the position and angle of the protective mirror, the user's eyes are protected, and the range of the user's eyes directly facing the laser is reduced.

[0037] 2. The handheld laser welder and its welding method are provided with a winding mechanism to wind and protect the cable of the welder. Since the cable of the welder is relatively long, most of the cable is piled on the ground during the welding process. As the workers move to different workstations, the cable is pulled and rubbed on the ground, which can easily cause the cable to be worn. Therefore, a winding mechanism is provided to reserve a length of the cable. When the user moves to different welding stations, the cable state can be adjusted by manually adjusting the stroke of the second adjustment column to avoid the cable piling up under the user's feet, causing the user to step on the cable during movement or the cable to be dragged on the ground and worn.

[0038] 3. The handheld laser welder and its welding method adjust the position of the center column and the rubber rod by setting a telescopic component. Before using the equipment, manually wrap the cable around the center column and the outside of the rubber rod, and send the cable through the through slot between the top plate and the push rod to store and fix the cable. If the cable needs to be wound for a longer length, the length of the first adjustment column can be adjusted by toggling the lever to adjust the length of the center column and the rubber rod outside the second holder, thereby expanding the cable winding range.

[0039] 4. The handheld laser welder and the welding method thereof are provided with adjustment components to adjust the protective frame and the protective mirror. According to the welding situation, the user can choose to manually install the extended mirror in the three slots to expand the protection range, and the protective mirror and the extended mirror protect the user's eyes. And by adjusting the position of the protective frame, the welding part can be surrounded and protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a flowchart of the present invention;

[0041] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 3 It is a schematic diagram of the side structure of the present invention;

[0043] Figure 4 It is a schematic diagram of the winding mechanism structure of the present invention;

[0044] Figure 5 For the present invention Figure 4 The structural diagram at A in the middle;

[0045] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0046] Figure 7 This is a schematic diagram of the structure of the telescopic assembly of the present invention;

[0047] Figure 8Schematic diagram of the protection mechanism structure of the present invention;

[0048] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at position C in the present invention;

[0049] Figure 10 Schematic diagram of the adjustment component structure of the present invention.

[0050] In the figure: 1, body; 2, welding part; 3, first connecting seat; 4, winding mechanism; 401, first clamping seat; 402, connecting rod; 403, second clamping seat; 404, first adjusting column; 405, telescopic component; 4051, cross groove; 4052, central column; 4053, rubber rod; 4054, telescopic rod; 4055, connecting block; 406, connecting plate; 407, through groove; 408, second adjusting column; 409, second magnetic sheet; 410, magnetic plate; 411, lever; 412, top plate; 413, third adjusting column; 414, push rod; 415, clamping rod; 416, clamping groove; 5, second connecting seat; 6, protection mechanism; 601, fixed cylinder; 602, moving column; 603, circular plate; 604, first adjusting rod; 605, second adjusting rod; 606, magnetic block; 607, central rod; 608, adjustment component; 6081, fourth adjusting rod; 6082, protection frame; 6083, backing plate; 6084, extension mirror; 609, adjusting bent rod; 610, joint; 611, protection mirror; 612, third adjusting rod; 613, plug plate; 7, hand-held part; 8, first magnetic sheet. Specific embodiments

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0052] As Figures 1 - 10 shown, the present invention provides a technical solution: including a body 1, a welding part 2 and a hand-held part 7 are installed outside the body 1;

[0053] A protection mechanism 6, the protection mechanism 6 includes a central rod 607, an adjusting bent rod 609 is installed at the top of the central rod 607, a joint 610 is installed outside the adjusting bent rod 609, a protection mirror 611 is installed outside the joint 610, and the joint 610 is made of rubber material, and as the protection mirror 611 flips, the joint 610 undergoes corresponding deformation;

[0054] The protection mechanism 6 further includes a third adjusting rod 612. A plug plate 613 is installed outside the third adjusting rod 612. The bottom of the plug plate 613 is arc-shaped. The plug plate 613 drives the protective mirror 611 under the drive of the third adjusting rod 612. The protective mirror 611 flips outside the joint 610. According to the user's usage habit, the user can manually adjust the length of the third adjusting rod 612 to adjust the position of the plug plate 613. The plug plate 613 drives the protective mirror 611 to flip, and the flip angle is an acute angle. By adjusting the angle of the protective mirror 611, the user's eyes are protected, and the range of the user's eyes directly looking at the laser is reduced.

[0055] A first connecting seat 3 and a second connecting seat 5 are installed outside the machine body 1. The protection mechanism 6 is connected to the second connecting seat 5. A winding mechanism 4 is arranged inside the first connecting seat 3. A plurality of first magnetic pieces 8 are arranged on the upper surface of the machine body 1. The third adjusting rod 612 is installed outside the central rod 607. A card slot 416 is opened inside the protective mirror 611. Three card slots 416 are opened, which are respectively on both sides and the top of the protective mirror 611.

[0056] Before using the device, adjust the protection mechanism 6 to rotate the protective mirror 611 and the protective frame 6082. Then adjust the winding mechanism 4, and manually wind the cable at the bottom of the handheld part 7 outside the winding mechanism 4. According to the welding habit of the worker, adjust the protection mechanism 6 to adjust the positions of the protective mirror 611 and the protective frame 6082. Turn on the welding machine and carry out the welding work. After welding, adjust the protection mechanism 6 to protect the welding part 2, and adjust the winding mechanism 4 to loosen and disassemble the cable.

[0057] The protection mechanism 6 further includes:

[0058] A fixed cylinder 601, the fixed cylinder 601 is installed inside the second connecting seat 5. A moving column 602 is slidably connected inside the fixed cylinder 601. One end of the moving column 602 is installed with a handle;

[0059] A circular plate 603, the circular plate 603 is installed outside the moving column 602. Second adjusting rods 605 are installed on both the top and bottom of the circular plate 603. Magnetic blocks 606 are installed outside both second adjusting rods 605. There are two second adjusting rods 605 and magnetic blocks 606, and they are symmetrically arranged. As the user manually rotates the handle, the moving column 602 rotates following the handle. The moving column 602 drives the circular plate 603, the second adjusting rods 605 and the magnetic blocks 606 to rotate;

[0060] A first adjusting rod 604, the first adjusting rod 604 is installed outside the circular plate 603. The first adjusting rod 604 is connected to the central rod 607. An adjusting assembly 608 is installed at the bottom of the central rod 607.

[0061] Before and after using the device, as the user manually rotates the handle, the moving column 602 rotates following the handle. The moving column 602 drives the circular plate 603, the second adjusting rod 605, and the magnet block 606 to rotate.

[0062] As the moving column 602 drives the circular plate 603, the second adjusting rod 605, and the magnet block 606 to rotate, the circular plate 603 drives the first adjusting rod 604, the central rod 607, and the adjusting assembly 608 to rotate, promoting the separation of impurities and debris outside the adjusting assembly 608 and the protective goggles 611.

[0063] Before using the device, the protective goggles 611 are located above the moving column 602. By manually pulling the handle, the movement of the moving column 602 in the fixed cylinder 601 is controlled, thereby controlling the movement of the circular plate 603, the second adjusting rod 605, and the magnet block 606 outside the moving column 602. The stroke of the second adjusting rod 605 is adjusted to make the magnet block 606 attracted and fixed to the corresponding first magnetic sheet 8, thereby fixing the position of the protective goggles 611.

[0064] By adjusting the attraction and fixation of the magnet block 606 to the first magnetic sheets 8 at different positions, the position of the protective goggles 611 can be adjusted so that the protective goggles 611 are located between the user's eyes and the welding part 2 to protect the user's eyes.

[0065] Subsequently, manually adjust the length of the third adjusting rod 612 to adjust the position of the plug plate 613. The plug plate 613 pushes the protective goggles 611 to flip, and the flip angle is an acute angle. The protective goggles 611 start to flip outside the joint 610, and the joint 610 deforms.

[0066] By adjusting the angle of the protective goggles 611, the protective goggles 611 are located between the user's eyes and the welding part 2 to protect the user's eyes and reduce the range of the user's eyes directly looking at the laser.

[0067] The adjusting assembly 608 includes:

[0068] The fourth adjusting rod 6081, which is installed at the bottom of the central rod 607;

[0069] The protective frame 6082, which is installed at the bottom of the fourth adjusting rod 6081. The side wall of the protective frame 6082 is provided with ventilation slots, and a cushion plate 6083 is installed inside the protective frame 6082. The cushion plate 6083 is set in a shape with a thick edge and a thin middle;

[0070] The extension mirror 6084, which is installed inside the card slot 416. There are multiple extension mirrors 6084, and they are symmetrically arranged.

[0071] According to the welding situation, the user can manually install the extension mirror 6084 in the three card slots 416 to expand the protection range, and the eyes of the user are protected by the protective mirror 611 and the extension mirror 6084.

[0072] After using the device, manually adjust the strokes of the first adjusting rod 604 and the fourth adjusting rod 6081 so that the protective frame 6082 is outside the welding part 2 to surround and protect the welding part 2.

[0073] The winding mechanism 4 includes:

[0074] The first card seat 401 is installed inside the first connecting seat 3. A first adjusting column 404 is arranged inside the first card seat 401, and a telescopic component 405 is installed outside the first adjusting column 404;

[0075] The connecting rod 402 is installed outside the first card seat 401. A second card seat 403 is installed at one end of the connecting rod 402 away from the first card seat 401. Both the second card seat 403 and the connecting rod 402 are provided with a plurality of them, and a channel is opened inside the second card seat 403;

[0076] The connecting plate 406 is arranged outside the telescopic component 405. A through groove 407 is opened inside the connecting plate 406, and a second adjusting column 408 is installed outside the connecting plate 406;

[0077] The top plate 412 is installed outside the second adjusting column 408. A third adjusting column 413 is connected to the outside of the top plate 412, and a card slot 416 is opened inside the top plate 412;

[0078] The push rod 414 is installed outside the third adjusting column 413. The push rod 414 is set in an L shape, and a clamping rod 415 is arranged at the top of the push rod 414. Both the push rod 414 and the top plate 412 are made of rubber;

[0079] The second magnetic sheet 409 is installed outside the second card seat 403. There are two second magnetic sheets 409, and they are symmetrically arranged;

[0080] The magnetic plate 410 is arranged outside the second card seat 403, and a dial rod 411 is installed outside the magnetic plate 410.

[0081] Before using the device, manually adjust the second adjusting column 408 to the maximum stroke. Then manually wind the cable at the bottom of the handheld part 7 around the outside of the telescopic component 405, and then send the cable through the through groove 407 of the connecting plate 406 between the push rod 414 and the top plate 412. Manually adjust the stroke of the third adjusting column 413 so that the clamping rod 415 is inserted into the card slot 416 to fix the position of the cable.

[0082] When it is necessary to loosen or disassemble the cable, adjust the length of the second adjusting column 408, and then disassemble the cable after releasing the reserved length of the cable.

[0083] By adjusting the second adjusting column 408 to the maximum stroke to reserve a length of the cable, when the user moves to different welding stations, the state of the cable can be adjusted by manually adjusting the stroke of the second adjusting column 408, avoiding the cable from piling up under the user's feet, causing the user to step on the cable during movement or the cable to be dragged on the ground and worn.

[0084] The telescopic assembly 405 includes:

[0085] A cross slot 4051 is opened inside the first clamping seat 401, and the first adjusting column 404 is installed inside the cross slot 4051;

[0086] A central column 4052 is connected to the first adjusting column 404. A rubber rod 4053 is installed outside the central column 4052. There are four rubber rods 4053 and they are evenly arranged. A telescopic rod 4054 is installed at the bottom of the central column 4052, and the telescopic rod 4054 is connected to the connecting plate 406;

[0087] A connecting block 4055 is installed outside the first adjusting column 404, and the connecting block 4055 is connected to the magnetic plate 410.

[0088] When it is necessary to adjust the position of the central column 4052, manually pull the lever 411. The lever 411 drives the magnetic plate 410 to move. The magnetic plate 410 drives the connecting block 4055 to move. The moving block stretches the first adjusting column 404. The first adjusting column 404 drives the central column 4052 and the rubber rod 4053 to move downward. The length of the central column 4052 and the rubber rod 4053 disengaging from the second clamping seat 403 becomes longer, facilitating the winding operation.

[0089] Working principle: Before using the device, adjust the protection mechanism 6 to rotate the protective goggles 611 and the protective frame 6082. The user manually rotates the handle, and the moving column 602 rotates following the handle. The moving column 602 drives the circular plate 603, the second adjusting rod 605, and the magnetic block 606 to rotate.

[0090] As the moving column 602 drives the circular plate 603, the second adjusting rod 605, and the magnetic block 606 to rotate, the circular plate 603 drives the first adjusting rod 604, the central rod 607, and the adjusting assembly 608 to rotate, promoting the separation of impurities and debris outside the adjusting assembly 608 and the protective goggles 611.

[0091] Subsequently, adjust the winding mechanism 4, and manually wind the cable at the bottom of the handheld part 7 around the outside of the winding mechanism 4.

[0092] Before using the device, manually adjust the second adjusting column 408 to its maximum stroke. Then manually wind the cable at the bottom of the handheld part 7 around the outside of the telescopic assembly 405. Then feed the cable between the push rod 414 and the top plate 412 through the through slot 407 of the connecting plate 406. Manually adjust the stroke of the third adjusting column 413 so that the clamping rod 415 snaps into the card slot 416 to fix the position of the cable.

[0093] According to the welding habits of the workers, adjust the protection mechanism 6 and adjust the positions of the protective goggles 611 and the protective frame 6082. Before using the device, the protective goggles 611 are above the moving column 602. By manually pulling the handle, control the sliding of the moving column 602 in the fixed cylinder 601, and then control the movement of the circular plate 603, the second adjusting rod 605 and the magnet 606 outside the moving column 602. Adjust the stroke of the second adjusting rod 605 so that the magnet 606 is attracted and fixed to the corresponding first magnetic sheet 8, thereby fixing the position of the protective goggles 611. Then manually adjust the length of the third adjusting rod 612 to adjust the position of the blocking plate 613. The blocking plate 613 pushes the protective goggles 611 to flip, and the flip angle is an acute angle. The protective goggles 611 start to flip outside the joint 610, and the joint 610 deforms.

[0094] Then turn on the welding machine and perform the welding work.

[0095] After welding is completed, adjust the protection mechanism 6 to protect the welding part 2, and adjust the winding mechanism 4 to loosen and remove the cable. Manually adjust the strokes of the first adjusting rod 604 and the fourth adjusting rod 6081 so that the protective frame 6082 is outside the welding part 2 to surround and protect the welding part 2.

[0096] When it is necessary to adjust the position of the telescopic assembly 405, manually pull the lever 411. The lever 411 drives the magnetic plate 410 to move. The magnetic plate 410 drives the connecting block 4055 to move. The moving block stretches the first adjusting column 404. The first adjusting column 404 drives the central column 4052 and the rubber rod 4053 to move downward. The lengths of the central column 4052 and the rubber rod 4053 disengaging from the second clamping seat 403 become longer, facilitating the winding work.

[0097] When it is necessary to loosen or remove the cable, adjust the length of the second adjusting column 408, release the cable of the reserved length, and then remove the cable.

[0098] The present invention provides a welding method for a handheld laser welding machine, including the following steps:

[0099] S1. Before using the device, adjust the protection mechanism 6 to perform a rotation process on the protective goggles 611 and the protective frame 6082;

[0100] S2. Adjust the winding mechanism 4 and manually wind the cable at the bottom of the handheld part 7 around the outside of the winding mechanism 4;

[0101] S3. According to the welding habits of workers, adjust the protection mechanism 6, adjust the positions of the protective goggles 611 and the protective frame 6082, turn on the welding machine, and perform welding work;

[0102] S4. After welding is completed, adjust the protection mechanism 6 to protect the welding part 2, and adjust the winding mechanism 4 to loosen and remove the cable.

[0103] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A handheld laser welding machine, comprising a machine body (1), characterized in that: The outside of the machine body (1) is equipped with a welding part (2) and a handheld part (7); A protection mechanism (6), the protection mechanism (6) includes a central rod (607), the top of the central rod (607) is equipped with an adjusting bent rod (609), the outside of the adjusting bent rod (609) is equipped with a joint (610), and the outside of the joint (610) is equipped with a protective mirror (611); The protection mechanism (6) further includes a third adjusting rod (612), the outside of the third adjusting rod (612) is equipped with a plug plate (613), the plug plate (613) drives the protective mirror (611) under the drive of the third adjusting rod (612), and the protective mirror (611) flips outside the joint (610).

2. The hand-held laser welding machine according to claim 1, characterized in that: The outside of the machine body (1) is equipped with a first connecting seat (3) and a second connecting seat (5), the protection mechanism (6) is connected to the second connecting seat (5), a winding mechanism (4) is arranged inside the first connecting seat (3), a first magnetic sheet (8) is arranged on the upper surface of the machine body (1), there are multiple first magnetic sheets (8), the third adjusting rod (612) is installed outside the central rod (607), and a card slot (416) is opened inside the protective mirror (611).

3. The handheld laser welding machine according to claim 1, characterized in that: The protection mechanism (6) further includes: A fixed cylinder (601), the fixed cylinder (601) is installed inside the second connecting seat (5), and a moving column (602) is slidably connected inside the fixed cylinder (601); A circular plate (603), the circular plate (603) is installed outside the moving column (602), second adjusting rods (605) are installed on both the top and bottom of the circular plate (603), and magnetic blocks (606) are installed outside both second adjusting rods (605); A first adjusting rod (604), the first adjusting rod (604) is installed outside the circular plate (603), the first adjusting rod (604) is connected to the central rod (607), and an adjusting component (608) is installed at the bottom of the central rod (607).

4. The handheld laser welding machine according to claim 3, characterized in that: The adjusting component (608) includes: A fourth adjusting rod (6081), the fourth adjusting rod (6081) is installed at the bottom of the central rod (607); A protection frame (6082), the side wall of the protection frame (6082) is provided with air permeation grooves, a cushion plate (6083) is installed inside the protection frame (6082), and the cushion plate (6083) is set in a shape with a thick edge and a thin middle; An extension mirror (6084), the extension mirror (6084) is installed inside the card slot (416), there are multiple extension mirrors (6084), and they are symmetrically arranged.

5. The handheld laser welding machine according to claim 2, characterized in that: The winding mechanism (4) includes: The first card seat (401), the first card seat (401) is installed inside the first connection seat (3), a first adjusting column (404) is arranged inside the first card seat (401), and a telescopic assembly (405) is installed outside the first adjusting column (404); The connecting rod (402), the connecting rod (402) is installed outside the first card seat (401), and a second card seat (403) is installed at one end of the connecting rod (402) far from the first card seat (401). Both the second card seat (403) and the connecting rod (402) are provided with a plurality of them, and a channel is opened inside the second card seat (403).

6. The hand-held laser welding machine according to claim 5, wherein: The winding mechanism (4) further includes: The connecting plate (406), the connecting plate (406) is arranged outside the telescopic assembly (405), a through groove (407) is opened inside the connecting plate (406), and a second adjusting column (408) is installed outside the connecting plate (406); The top plate (412), the top plate (412) is installed outside the second adjusting column (408), a third adjusting column (413) is connected to the outside of the top plate (412), and a card slot (416) is opened inside the top plate (412); The push rod (414), the push rod (414) is installed outside the third adjusting column (413), the push rod (414) is set to be L-shaped, and a clamping rod (415) is arranged at the top of the push rod (414).

7. The hand-held laser welding machine according to claim 6, wherein: The winding mechanism (4) further includes: The second magnetic sheet (409), the second magnetic sheet (409) is installed outside the second card seat (403), there are two second magnetic sheets (409), and they are symmetrically arranged; The magnetic plate (410), the magnetic plate (410) is arranged outside the second card seat (403), and a dial rod (411) is installed outside the magnetic plate (410).

8. The hand-held laser welding machine according to claim 7, wherein: The telescopic assembly (405) includes: The cross slot (4051), the cross slot (4051) is opened inside the first card seat (401), and the first adjusting column (404) is installed inside the cross slot (4051); The central column (4052), the central column (4052) is connected to the first adjusting column (404), a rubber rod (4053) is installed outside the central column (4052), there are four rubber rods (4053), and they are evenly arranged. A telescopic rod (4054) is installed at the bottom of the central column (4052), and the telescopic rod (4054) is connected to the connecting plate (406); The connecting block (4055), the connecting block (4055) is installed outside the first adjusting column (404), and the connecting block (4055) is connected to the magnetic plate (410).

9. A welding method for a handheld laser welding machine, characterized in that, Comprising the following steps: S1. Before using the device, adjust the protection mechanism (6) and rotate the protective goggles (611) and the protective frame (6082). S2. Adjust the winding mechanism (4) and manually wind the cable at the bottom of the handheld part (7) around the outside of the winding mechanism (4). S3. According to the welding habits of the workers, adjust the protection mechanism (6), adjust the positions of the protective goggles (611) and the protective frame (6082), turn on the welding machine and perform welding work. S4. After welding, adjust the protection mechanism (6) to protect the welding part (2), and adjust the winding mechanism (4) to loosen and remove the cable.

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