Handheld laser metal cladding welding device

Abstract

The invention discloses a handheld laser metal cladding welding device, which belongs to the technical field of laser welding, and has the technical key points that the handheld laser metal cladding welding device comprises a supporting table, a welding gun body and a grab handle, and a welder can be allowed to easily adjust the angle of the welding gun according to the specific shape and position of a workpiece through an arranged multi-angle extension control mechanism; meanwhile, by adjusting the length of the welding gun, the application range of welding operation is greatly widened, a power supply battery can be replaced for power supply without shutdown through the arranged battery replacement mechanism, production stagnation caused by battery replacement is avoided, and the production efficiency is improved. By means of the arranged table board welding mechanism, placing and fixing can be conducted when an operator does not want to continue holding welding machining due to fatigue, in addition, the welding gun can be correspondingly driven to conduct rotary welding machining through the rotary base, and the application range of welding machining is widened; the welding machine has the advantages that the welding machine can be conveniently held by hands or placed on a table board for welding, batteries can be conveniently replaced for machining without shutdown, and the welding angle can be freely adjusted for machining.

Description

Technical Field

[0001] The invention relates to the field of laser welding, and in particular to a handheld laser metal cladding welding device. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] When using existing handheld laser welding guns, the welding length and angle are relatively fixed, and the angle often needs to be adjusted manually for welding. A long time can easily lead to fatigue, and the welding effect is poor. In addition, when welding some annular cracks, it is necessary to rotate the welding gun manually to achieve welding. However, manual annular rotation can easily cause the welding distance to fluctuate, resulting in multiple rework welding processes, which is time-consuming and labor-intensive, and the welding effect is poor. In addition, the batteries on existing welding guns are mostly line-connected or individually detachable. The line-connected welding guns limit their use to indoors. When a battery-powered welding gun is in use, it needs to be shut down and the battery needs to be charged to complete subsequent welding processes. This will cause a temporary interruption of the production line, and continuous welding processes cannot be achieved well. The applicability is poor and cannot meet the needs of actual use.

[0004] Therefore, it is necessary to provide a handheld laser metal cladding welding device to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide a handheld laser metal cladding welding device, aiming to solve the technical problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A handheld laser metal cladding welding device comprises a support platform, a welding gun body and a handle, wherein the handle is fixedly mounted on the welding gun body, one end of the welding gun body is movably mounted and connected with a welding gun head for welding processing, a plurality of power supply batteries for power supply are mounted in a limit clamp in the handle, and the other end of the welding gun body is fixedly connected with a magnet block, and further comprises: A multi-angle extension control mechanism is installed at the connection between the welding gun head and the welding gun body, and is used to drive the welding gun head to perform multi-angle rotation welding and extension control welding processing. The multi-angle extension control mechanism includes a semi-connection ring and a docking seat for driving the welding gun head to perform angle adjustment welding. The welding gun head is fixedly installed on the semi-connection ring, and the semi-connection ring is limitedly slidably connected to the inside of the docking seat. A driving gear for controlling the rotation and sliding connection of the semi-connection ring is arranged in the docking seat, and one side of the semi-connection ring is provided with a plurality of teeth meshing with the driving gear; A battery replacement mechanism, which is installed at the internal connection between the power supply battery and the handle, and is used for limiting and clamping a plurality of power supply batteries for power supply, the battery replacement mechanism includes a limiting slider for limiting and clamping the power supply battery and a conical slider for controlling the removal of the power supply battery, one end of the power supply battery is fixedly connected to a first slide column, the first slide column is fixedly connected to a semicircular block through a second slide column, the conical slider is limitedly slidably connected to the second slide column, and the limiting slider is limitedly movably installed at the side of the semicircular block; The table welding mechanism is installed on the support table and is used to place the clamping welding gun body for welding processing.

[0007] As a further solution of the present invention, the multi-angle extension control mechanism also includes a second micromotor for driving the driving gear for rotation control, the driving gear is rotatably installed inside the docking seat, the driving gear is fixedly connected to the output shaft of the second micromotor, the second micromotor is fixedly installed on the docking seat, and a mounting block is fixedly connected to one side of the docking seat.

[0008] As a further solution of the present invention, the multi-angle extension control mechanism also includes a first connecting arm, a second connecting arm and a third connecting arm for driving the welding gun head to extend and retract and adjust the angle. The mounting block is rotatably installed at one end of the third connecting arm through a third connecting shaft, the other end of the third connecting arm is rotatably connected to the second connecting arm through the second connecting shaft, the other end of the second connecting arm is rotatably connected to the first connecting arm through the first connecting shaft, the first connecting arm is fixedly connected to the output shaft of the rotating motor through a driving shaft, and the rotating motor is fixedly installed inside the welding gun body.

[0009] As a further solution of the present invention, the multi-angle extension control mechanism also includes a first micro motor for driving the docking station to perform pitch adjustment, one end of the third connecting shaft is fixedly connected to a worm gear, the worm gear is meshingly connected to a worm, the worm gear is fixedly connected to the output shaft of the first micro motor, and the first micro motor is fixedly installed on the side of the third connecting arm.

[0010] As a further solution of the present invention, the rotational connection between the third connecting arm and the second connecting arm is provided with a second locking knob for tightening the rotational connection, and the rotational connection between the third connecting arm and the first connecting arm is provided with a first locking knob for tightening the rotational connection.

[0011] As a further solution of the present invention, the battery replacement mechanism also includes a spring and a clamping seat for driving the limit slider to clamp the power supply battery. The clamping seat is fixedly installed inside the handle, and a mounting cavity for adapting to the sliding connection of the semicircular clamping block is provided in the clamping seat. The limit slider is slidingly connected to the clamping seat through a limit slider rod, and a guide groove for adapting to the sliding connection of the limit slider rod is provided in the clamping seat. A spring is provided at the internal connection between the limit slider and the clamping seat, a switch is provided on the side of the handle, and a battery accommodating cavity for adapting to the installation of the power supply battery is provided in the handle.

[0012] As a further solution of the present invention, the battery replacement mechanism also includes a limiting base plate for external clamping, and a plurality of elastic limiting hooks for clamping are fixedly connected to the limiting base plate, and a limiting groove adapted to be clamped with the elastic limiting hooks is provided on the handle, and a first indicator light and a second indicator light for indicating the power level of the power supply battery are provided on the handle.

[0013] As a further solution of the present invention, the table welding mechanism includes a lifting platform and a fixed seat for limiting support, the fixed seat is fixedly connected to the support platform through the lifting platform, the support platform is provided with a limiting ring that is adapted to connect with the handle, and the fixed seat is provided with a magnetic cavity that is magnetically connected to the magnet block.

[0014] As a further solution of the present invention, the table welding mechanism also includes a rotating base for driving the welding gun body on the support table to perform table rotation welding. The support table is rotatably mounted on the rotating base through a rotating ring. The rotating base is equipped with a motor for driving the support table to rotate. The rotating base is provided with a rotating groove that is rotatably connected to the rotating ring.

[0015] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects: The multi-angle extension control mechanism provided in the present invention allows the welder to easily adjust the angle of the welding gun according to the specific shape and position of the workpiece, without frequently moving the workpiece or the welder's own position, thereby greatly reducing the preparation time and physical exertion. At the same time, by adjusting the length of the welding gun, the welder can reach difficult-to-access areas, greatly broadening the application scope of the welding operation. In addition, this multifunctional welding operation mode can quickly adapt to different welding tasks without the need to replace multiple tools, reducing the time for shutdown and changing equipment, while enhancing the safety and flexibility of the operation, thereby improving the work efficiency of the overall production line.

[0016] The battery replacement mechanism can realize the replacement of power batteries without stopping the machine, avoiding production stagnation caused by battery replacement, thereby greatly reducing the downtime of the production line, and can well maintain the continuity and stability of the welding process, which helps to improve the welding quality and overall quality of the product and improve the overall production efficiency.

[0017] The table welding mechanism provided can fix the operator to the magnetic cavity on the fixed seat by adsorption through the provided magnet block when the operator is tired and no longer wants to continue the hand-held welding process. At this time, the welding gun can be placed on the support table for welding. In addition, the welding gun can be driven to perform rotary welding processing by the rotating base, which broadens the application scope of the welding process. In addition, since corresponding metal debris will be generated during the welding process and is not convenient to clean, it can be adsorbed by the magnet block provided on the welding gun body, thereby facilitating subsequent cleaning operations.

[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the invention.

[0020] Figure 2 It is a schematic diagram of the exploded structure of the side connection of an embodiment of the invention.

[0021] Figure 3 It is a schematic structural diagram of a welding gun body in an embodiment of the invention.

[0022] Figure 4 It is a schematic diagram of the explosion structure of the limit bottom plate connection in the embodiment of the invention.

[0023] Figure 5 It is a schematic diagram of the exploded structure of the battery connection in the embodiment of the invention.

[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of A.

[0025] Figure 7 It is a schematic diagram of the connection structure between the card socket and the battery in an embodiment of the invention.

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the connection of the card socket in the embodiment of the invention.

[0027] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of B.

[0028] Fig.10It is a schematic diagram of the top view of the structure of the first connecting arm connection in an embodiment of the invention.

[0029] Fig.11 for Fig.10 Schematic diagram of the enlarged structure of C in the figure.

[0030] Fig.12 It is a schematic diagram of the connection structure of the end portion of the third connecting arm in an embodiment of the invention.

[0031] Fig.13 for Fig.12 Schematic diagram of the enlarged structure of D in the figure.

[0032] Figure numerals: 1, support platform; 2, limiting ring; 3, lifting platform; 4, rotating ring; 5, rotating base; 6, rotating groove; 7, fixed seat; 8, magnet block; 9, welding gun body; 10, handle; 11, switch; 12, first indicator light; 13, second indicator light; 14, magnetic cavity; 15, limiting bottom plate; 16, elastic limiting hook; 17, limiting groove; 18, power supply battery; 19, battery accommodating cavity; 20, first slide column; 21, second slide column; 22, tapered slider; 23, semicircular block; 24, card seat; 25, installation cavity; 26, limiting 1. a first micro motor; 2. a second micro motor; 3. a second micro motor; 4. a second micro motor; 5. a first drive shaft; 6. a first connecting arm; 7. a second connecting arm; 8. a second connecting arm; 9. a third connecting arm; 10. a first connecting shaft; 11. a first locking knob; 12. a second connecting shaft; 13. a second locking knob; 14. a third connecting shaft; 15. a first mounting block; 16. a worm gear; 17. a worm; 18. a first micro motor; 19. a second micro motor; 20. a second micro motor; 21. a second micro motor; 22. a second micro motor; 23. a first micro motor; 24. a second micro motor; 25. a second micro motor; 26. a second micro motor; 27. a first micro motor; 28. a second micro motor; 29. ​​a second micro motor; 30. a second micro motor; 31. a second drive gear; 32. a first connecting arm; 33. a second connecting arm; 34. a third connecting arm; 35. a first connecting shaft; 36. a first locking knob; 37. a second connecting shaft; 38. a second locking knob; 39. a third connecting shaft; 40. a mounting block; 41. a worm gear; 42. a worm; 43. a first micro motor; 44. a docking station; 45. a second micro motor; 46. a drive gear; 47. a semi-connecting ring; 48. teeth; 49. a welding gun head. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0035] Example 1

[0036] See also Figures 1 to 13A handheld laser metal cladding welding device comprises a support platform 1, a welding gun body 9 and a handle 10, wherein the handle 10 is fixedly mounted on the welding gun body 9, a welding gun head 49 for welding processing is movably mounted on one end of the welding gun body 9, a plurality of power supply batteries 18 for power supply are installed in the handle 10 in a limited position, a switch 11 is arranged on the side of the handle 10, a magnet block 8 is fixedly connected to the other end of the welding gun body 9, and further comprises: A multi-angle extension control mechanism is installed at the connection between the welding gun head 49 and the welding gun body 9, and is used to drive the welding gun head 49 to perform multi-angle rotation welding and extension control welding processing. The multi-angle extension control mechanism includes a semi-connecting ring 47 and a docking seat 44 for driving the welding gun head 49 to perform angle adjustment welding. The welding gun head 49 is fixedly installed on the semi-connecting ring 47, and the semi-connecting ring 47 is limitedly slidably connected to the inside of the docking seat 44. A driving gear 46 for controlling the rotational sliding connection of the semi-connecting ring 47 is arranged in the docking seat 44, and a plurality of teeth 48 meshing with the driving gear 46 are arranged on one side of the semi-connecting ring 47.

[0037] Furthermore, the multi-angle extension control mechanism also includes a second micro motor 45 for driving the driving gear 46 for rotation control. The driving gear 46 is rotatably installed inside the docking seat 44. The driving gear 46 is fixedly connected to the output shaft of the second micro motor 45. The second micro motor 45 is fixedly installed on the docking seat 44, and a mounting block 40 is fixedly connected to one side of the docking seat 44.

[0038] Furthermore, the multi-angle extension control mechanism also includes a first connecting arm 32, a second connecting arm 33 and a third connecting arm 34 for driving the welding gun head 49 to extend and retract and adjust the angle. The mounting block 40 is rotatably mounted at one end of the third connecting arm 34 through a third connecting shaft 39, and the other end of the third connecting arm 34 is rotatably connected to the second connecting arm 33 through a second connecting shaft 37. The other end of the second connecting arm 33 is rotatably connected to the first connecting arm 32 through a first connecting shaft 35. The first connecting arm 32 is fixedly connected to the output shaft of the rotating motor 30 through a driving shaft 31, and the rotating motor 30 is fixedly mounted inside the welding gun body 9.

[0039] Furthermore, the multi-angle extension control mechanism also includes a first micro motor 43 for driving the docking seat 44 to perform pitch adjustment, one end of the third connecting shaft 39 is fixedly connected to a worm gear 41, a worm 42 is meshingly connected to the worm gear 41, the worm gear 41 is fixedly connected to the output shaft of the first micro motor 43, and the first micro motor 43 is fixedly installed on the side of the third connecting arm 34.

[0040] Furthermore, a second locking knob 38 for tightening the rotational connection is provided at the rotational connection between the third connecting arm 34 and the second connecting arm 33 , and a first locking knob 36 for tightening the rotational connection is provided at the rotational connection between the third connecting arm 34 and the first connecting arm 32 .

[0041] Preferably, when performing manual laser welding processing, the switch 11 on the handle 10 is opened and closed, and the staff can perform welding processing by holding the handle 10. When it is necessary to perform welding processing on annular cracks and three-dimensional structures, the first micromotor 43 can drive the worm 42 to rotate, and drive the docking seat 44 on the third connecting shaft 39 to perform a certain angle of pitch adjustment under the meshing connection between the worm 42 and the worm wheel 41, thereby realizing the pitch adjustment setting of the welding gun head 49 at a certain angle.

[0042] In addition, since the welding gun head 49 is arranged to be connected to the semi-connecting ring 47, the output shaft of the second micro motor 45 can drive the driving gear 46 to rotate. Under the relationship that the driving gear 46 is meshed with the teeth 48 on the side of the semi-connecting ring 47 and the semi-connecting ring 47 is limitedly rotated and connected to the docking seat 44, the welding gun head 49 can be driven to move in a circular manner accordingly. Combined with the driving action of the rotating motor 30 in the welding gun body 9, the welding processing of the welding gun head 49 in a circular direction can be realized, which can facilitate the welding processing of some annular cracks and workpieces with special three-dimensional structures, and has a wide range of applicability.

[0043] At the same time, in order to perform welding processing on some relatively deep workpieces, the first connecting arm 32, the second connecting arm 33 and the third connecting arm 34 can be expanded and extended by adjusting the first locking knob 36 and the second locking knob 38, thereby realizing the length extension welding processing of the welding gun, and the first connecting arm 32, the second connecting arm 33 and the third connecting arm 34 can be adjusted to a certain angle accordingly, so as to facilitate processing for various different welding workpieces and environments, and has strong adaptability.

[0044] This working method allows welders to easily adjust the angle of the welding gun according to the specific shape and position of the workpiece, without having to frequently move the workpiece or the welder's own position, thereby greatly reducing preparation time and physical exertion. At the same time, by adjusting the length of the welding gun, welders can reach difficult-to-access areas, greatly broadening the application scope of welding operations. In addition, this versatile welding operation method can quickly adapt to different welding tasks without the need to replace multiple tools, reducing downtime and changing time, while enhancing the safety and flexibility of the operation, thereby improving the overall work efficiency of the production line.

[0045] Example 2

[0046] like Figures 1 to 9As shown, based on Example 1, this embodiment further includes a battery replacement mechanism, which is installed at the internal connection between the power supply battery 18 and the handle 10, and is used to limit and clamp a plurality of power supply batteries 18 for power supply. The battery replacement mechanism includes a limiting slider 26 for limiting and clamping the power supply battery 18 and a conical slider 22 for controlling the removal of the power supply battery 18. One end of the power supply battery 18 is fixedly connected to a first slide column 20, and the first slide column 20 is fixedly connected to a semicircular block 23 through a second slide column 21. The conical slider 22 is slidably connected to the second slide column 21, and the limiting slider 26 is movably installed at the side of the semicircular block 23.

[0047] Furthermore, the battery replacement mechanism also includes a spring 28 and a clamping seat 24 for driving the limit slider 26 to clamp the power supply battery 18. The clamping seat 24 is fixedly installed inside the handle 10. A mounting cavity 25 for adapting the sliding connection of the semicircular clamping block 23 is provided in the clamping seat 24. The limit slider 26 is slidingly connected to the clamping seat 24 through a limit slider 27. A guide groove 29 for adapting the sliding connection of the limit slider 27 is provided in the clamping seat 24. A spring 28 is provided at the internal connection between the limit slider 26 and the clamping seat 24, and a battery accommodating cavity 19 for adapting the installation of the power supply battery 18 is provided in the handle 10.

[0048] Furthermore, the battery replacement mechanism also includes a limiting base plate 15 for external clamping, and a plurality of elastic limiting hooks 16 for clamping are fixedly connected to the limiting base plate 15, and a limiting groove 17 adapted to be clamped with the elastic limiting hooks 16 is provided on the handle 10, and a first indicator light 12 and a second indicator light 13 for indicating the power level of the power supply battery 18 are provided on the handle 10.

[0049] Preferably, in the present embodiment, a plurality of power supply batteries 18 for power supply are arranged in the handle 10, and the number of the power supply batteries 18 is preferably 2-4. The number of the power supply batteries 18 arranged in the present invention is two, and the welding gun uses the power supply of a single power supply battery 18 independently one by one for welding processing. When the power supply battery 18 on one side is out of power, the first indicator light 12 indicated above the power supply battery 18 will show that it is out of power, and the welding gun continues to use the power supply battery 18 on the other side for power processing.

[0050] In addition, in order to avoid the reduction in efficiency caused by shutdown, the welding gun body 9 can be set up to continue the welding process. At this time, it is only necessary to remove the limit bottom plate 15 through the limit groove 17, and move the power supply battery 18 on the power-free side into the battery accommodating chamber 19 by pressing. Since the power supply battery 18 is limited and engaged by the limit slider 26, when the power supply battery 18 is pushed to continue moving in the direction close to the engaging seat 24, the engaged limit slider 26 is retracted and moved inwardly under the action of the conical slider 22. When the limit slider 26 passes over the conical slider 22, due to the limit of the limit slider 26, the conical slider 22 is abutted and slid on the lower surface of the semicircular block 23. At this time, the power supply battery 18 is released again, so that the power supply battery 18 moves in the direction away from the engaging seat 24. At this time, the limit slider 26 will be completely separated from the upper surface of the semicircular block 23, and the power supply battery 18 can be well disassembled for charging.

[0051] When a new power supply battery 18 needs to be loaded, it is only necessary to press the power supply battery 18 in the direction of the clamping seat 24. Under the elastic action of the spring 28, the limiting clamping processing of the upper semicircular clamping block 23 of the power supply battery 18 can be well achieved, which is convenient for replacing the power supply battery 18 for use. At the same time, correspondingly, the number of power supply batteries 18 can be multiple, so as to facilitate the replacement of power supply processing one by one. This non-stop operation mode significantly improves the welding processing efficiency of the welding gun.

[0052] This technical means of replacing the power supply battery 18 without stopping the production process can complete the replacement of the power supply battery 18 without interrupting the production process, avoiding production stagnation caused by battery replacement, thereby greatly reducing the downtime of the production line, and can well maintain the continuity and stability of the welding process, thereby helping to improve the welding quality and overall quality of the product and improve the overall production efficiency.

[0053] Example 3

[0054] like Figure 1 to Figure 3 As shown, based on the above embodiment, this embodiment further includes a table welding mechanism, which is installed on the support table 1 and is used to place a clamping welding gun body 9 for welding processing.

[0055] Furthermore, the table welding mechanism includes a lifting platform 3 and a fixed seat 7 for limited support. The fixed seat 7 is fixedly connected to the support platform 1 through the lifting platform 3. The support platform 1 is provided with a limiting ring 2 that is adapted to connect with the handle 10. The fixed seat 7 is provided with a magnetic cavity 14 that is magnetically connected with the magnet block 8.

[0056] Furthermore, the table welding mechanism also includes a rotating base 5 for driving the welding gun body 9 on the support table 1 to perform table rotation welding. The support table 1 is rotatably mounted on the rotating base 5 through a rotating ring 4. The rotating base 5 is equipped with a motor for driving the support table 1 to rotate. The rotating base 5 is provided with a rotating groove 6 that is rotatably connected to the rotating ring 4.

[0057] Preferably, in this embodiment, since corresponding metal debris is generated during the welding process and is inconvenient to clean, it can be adsorbed by the magnet block 8 provided on the welding gun body 9, thereby facilitating subsequent cleaning operations.

[0058] When the operator is tired and no longer wants to continue the hand-held welding process, the magnet block 8 is adsorbed and fixed to the magnetic cavity 14 on the fixed seat 7. At this time, the bottom of the handle 10 can be correspondingly clamped on the limit ring 2 on the support platform 1. At this time, the welding gun can be placed on the support platform 1 for welding, and the welding gun can be driven by the rotating base 5 to perform rotary welding machine processing, which broadens the application scope of the welding process.

[0059] It should be noted that the lifting platform 3 is internally installed with a corresponding electric push rod for lifting operation.

[0060] It should be particularly noted that the components in this application are all universal standard parts or components well known to those skilled in the art, which effectively solve the technical problems raised in the background technology.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld laser metal cladding welding device, comprising a support platform (1), a welding gun body (9) and a handle (10), wherein the handle (10) is fixedly mounted on the welding gun body (9), characterized in that: One end of the welding gun body (9) is movably connected to a welding gun head (49) for welding processing, a plurality of power supply batteries (18) for power supply are mounted in a position-limiting manner in the handle (10), and the other end of the welding gun body (9) is fixedly connected to a magnet block (8), and further comprises: A multi-angle extension control mechanism, which is installed at the connection between the welding gun head (49) and the welding gun body (9) and is used to drive the welding gun head (49) to perform multi-angle rotation welding and extension control welding processing. The multi-angle extension control mechanism includes a semi-connecting ring (47) and a docking seat (44) for driving the welding gun head (49) to perform angle adjustment welding. The welding gun head (49) is fixedly installed on the semi-connecting ring (47), and the semi-connecting ring (47) is limitedly slidably connected to the inside of the docking seat (44). A driving gear (46) for controlling the rotation and sliding connection of the semi-connecting ring (47) is arranged in the docking seat (44), and a plurality of teeth (48) meshingly connected to the driving gear (46) are arranged on one side of the semi-connecting ring (47); A battery replacement mechanism is installed at the internal connection between the power supply battery (18) and the handle (10), and is used for limiting and clamping a plurality of power supply batteries (18) for power supply. The battery replacement mechanism comprises a limiting slider (26) for limiting and clamping the power supply battery (18) and a conical slider (22) for controlling the removal of the power supply battery (18). One end of the power supply battery (18) is fixedly connected to a first slide column (20), and the first slide column (20) is fixedly connected to a semicircular block (23) via a second slide column (21). The conical slider (22) is limitedly slidably connected to the second slide column (21), and the limiting slider (26) is limitedly movably installed at the side of the semicircular block (23); A tabletop welding mechanism is installed on a support table (1) and is used to place a clamping welding gun body (9) for welding processing.

2. The handheld laser metal cladding welding device according to claim 1, characterized in that: The multi-angle extension control mechanism further comprises a second micro motor (45) for driving a driving gear (46) for rotation control, wherein the driving gear (46) is rotatably mounted inside the docking seat (44), the driving gear (46) is fixedly connected to an output shaft of the second micro motor (45), the second micro motor (45) is fixedly mounted on the docking seat (44), and a mounting block (40) is fixedly connected to one side of the docking seat (44).

3. The handheld laser metal cladding welding device according to claim 2, characterized in that: The multi-angle extension control mechanism also includes a first connecting arm (32), a second connecting arm (33) and a third connecting arm (34) for driving the welding gun head (49) to extend and retract and adjust the angle. The mounting block (40) is rotatably mounted on one end of the third connecting arm (34) via a third connecting shaft (39). The other end of the third connecting arm (34) is rotatably connected to the second connecting arm (33) via a second connecting shaft (37). The other end of the second connecting arm (33) is rotatably connected to the first connecting arm (32) via a first connecting shaft (35). The first connecting arm (32) is fixedly connected to the output shaft of a rotating motor (30) via a driving shaft (31). The rotating motor (30) is fixedly mounted inside the welding gun body (9).

4. The handheld laser metal cladding welding device according to claim 3 is characterized in that: The multi-angle extension control mechanism also includes a first micro motor (43) for driving the docking seat (44) to perform pitch adjustment, one end of the third connecting shaft (39) is fixedly connected to a worm gear (41), the worm gear (41) is meshingly connected to a worm (42), the worm gear (42) is fixedly connected to an output shaft of the first micro motor (43), and the first micro motor (43) is fixedly mounted on a side of the third connecting arm (34).

5. The handheld laser metal cladding welding device according to claim 3, characterized in that: A second locking knob (38) for tightening the rotational connection is provided at the rotational connection between the third connecting arm (34) and the second connecting arm (33), and a first locking knob (36) for tightening the rotational connection is provided at the rotational connection between the third connecting arm (34) and the first connecting arm (32).

6. The handheld laser metal cladding welding device according to claim 1, characterized in that: The battery replacement mechanism further comprises a spring (28) and a clamping seat (24) for driving a limit slider (26) to clamp the power supply battery (18); the clamping seat (24) is fixedly mounted inside the handle (10); a mounting cavity (25) for adapting to a sliding connection semicircular clamping block (23) is provided inside the clamping seat (24); the limit slider (26) is limitedly slidably connected to the clamping seat (24) via a limit slider (27); a guide slot (29) for adapting to the sliding connection limit slider (27) is provided inside the clamping seat (24); a spring (28) is provided at the internal connection between the limit slider (26) and the clamping seat (24); a switch (11) is provided on the side of the handle (10); and a battery accommodating cavity (19) for adapting to install the power supply battery (18) is provided inside the handle (10).

7. The handheld laser metal cladding welding device according to claim 6, characterized in that: The battery replacement mechanism further comprises a limit base plate (15) for external clamping, a plurality of elastic limit hooks (16) for clamping are fixedly connected to the limit base plate (15), a limit groove (17) for clamping with the elastic limit hooks (16) is provided on the handle (10), and a first indicator light (12) and a second indicator light (13) for indicating the power level of the power supply battery (18) are provided on the handle (10).

8. The handheld laser metal cladding welding device according to claim 1, characterized in that: The tabletop welding mechanism comprises a lifting platform (3) and a fixing seat (7) for limiting support, wherein the fixing seat (7) is fixedly connected to the support platform (1) via the lifting platform (3), the support platform (1) is provided with a limiting ring (2) adapted to be coupled with the handle (10), and the fixing seat (7) is provided with a magnetic cavity (14) magnetically coupled with the magnet block (8).

9. The handheld laser metal cladding welding device according to claim 8, characterized in that: The tabletop welding mechanism further comprises a rotating base (5) for driving a welding gun body (9) on a support table (1) to perform tabletop rotation welding. The support table (1) is rotatably mounted on the rotating base (5) via a rotating ring (4). The rotating base (5) is internally mounted with a motor for driving the support table (1) to rotate. The rotating base (5) is provided with a rotating groove (6) that is rotatably connected to the rotating ring (4).

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