Handheld laser welding equipment

Abstract

The utility model discloses handheld laser welding equipment, which relates to the technical field of laser welding, and comprises a box body, a partition plate is arranged on the inner wall of the box body, the partition plate divides the inner wall of the box body into a purification cavity and an equipment cavity, a laser welding machine is placed in the equipment cavity, the laser welding machine is provided with a wire penetrating through the box body, and the purification cavity is communicated with the purification cavity. A gun head is arranged at the tail end of the wire, a protective cover is arranged on the outer wall of the gun head, and the protective cover is matched with the gun head. When the protective cover is used, the connecting ring at the bottom of the protective cover is connected with the connecting groove in the top of the mounting disc, so that the protective cover is mounted outside the gun head, the protective cover protects the gun head during laser welding, high-temperature chippings generated by laser welding are prevented from splashing to accidentally injure welding personnel, meanwhile, the splashing chippings are prevented from influencing the welding sight, and the welding quality is improved. And the wires are coiled and stacked through the wire coiling grooves, the proper wire length can be conveniently selected according to needs, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a handheld laser welding device. Background Art

[0002] In the welding process of engineering machinery structural parts in my country, the most commonly used means are machine arc welding and manual arc welding. For various reasons, manual arc welding is more widely used. Manual arc welding does not require complex auxiliary equipment during operation, but only needs to be equipped with simple auxiliary tools, which is convenient to carry. Electrode arc welding is suitable for welding single or small batch workpieces and welds that are irregular, in any spatial position, and difficult to achieve mechanized welding. However, the quality of the weld of this manual arc welding depends not only on the adjustment of welding power supply, welding rod, and welding process parameters, but also on the welder's operating skills and experience. The welder has high labor intensity, poor working conditions, and low production efficiency. And it is not suitable for welding thin plates of 0.5mm such as ship sails. The thickness of the welding workpiece for electrode arc welding is generally above 1.5mm, and thin plates below 1mm are not suitable for electrode arc welding. Therefore, handheld laser welding equipment has appeared on the market to weld structural parts by laser.

[0003] The Chinese patent (application number: 201811171209.9) proposes "a handheld laser welding device" including a welding cabinet, a laser welding gun and a focusing lens. The welding cabinet is provided with a pulse laser and a main control circuit. The pulse laser is electrically connected to the main control circuit. The pulse laser is connected to the laser welding gun through an optical fiber optical path, and the laser emitted by the pulse laser enters the welding gun through the optical fiber and then passes through the focusing lens to reach the target welding position. However, no protective components are provided during the welding process. The debris generated during welding is easy to splash, and the splashed debris is easy to burn the staff and the splashed debris pollutes the environment. At the same time, the smoke generated by welding is randomly scattered and inconvenient to handle. Utility Model Content

[0004] The purpose of this application is to provide a handheld laser welding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a handheld laser welding device, comprising a box body, the inner wall of the box body is provided with a partition, the partition separates the inner wall of the box body into a purification chamber and an equipment chamber, a laser welder is placed inside the equipment chamber, the laser welder is provided with a wire running through the box body, a gun head is provided at the end of the wire, a protective cover is provided on the outer wall of the gun head, the protective cover is adapted to the gun head, a mounting plate is provided on the outer wall of the gun head, a connecting plate is provided at the bottom of the protective cover, a connecting groove is provided on the top outer wall of the mounting plate, and a connecting ring adapted to the connecting groove is provided at the bottom of the connecting plate.

[0006] Preferably, a telescopic hose leading to the purification chamber is provided at one end of the outer wall at the top of the box body, a threaded piece is provided at the end of the telescopic hose, and a threaded hole matched with the threaded piece is opened on the outer wall of the protective cover.

[0007] Preferably, the outer wall of the gun head is provided with a grip ring and a control switch, and the grip ring and the control switch are respectively adapted to the gun head.

[0008] Preferably, a purification net box is slidably installed on the inner wall of the purification chamber, the inner wall of the purification net box is filled with activated carbon, a slot compatible with the purification net box is opened on the outer wall of the box body, an exhaust pipe that runs through the box body is arranged at the bottom of the inner wall on one side of the purification chamber, and the exhaust pipe is installed with an exhaust pump.

[0009] Preferably, the equipment cavity is provided with a support plate, a placement groove is opened on the top outer wall of the support plate, the laser welder is placed inside the placement groove, a cooling fan is installed on the bottom inner wall of the equipment cavity, and air holes are opened on the top and bottom of the box body and the bottom of the placement groove.

[0010] Preferably, a wire winding groove is provided on one side of the outer wall at the top of the support plate, and the inner wall of the wire winding groove is stacked with conductive wires.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, when in use, the connecting ring at the bottom of the protective cover is connected to the connecting groove at the top of the mounting plate so that the protective cover is installed on the outside of the gun head. When laser welding is performed, the protective cover protects the gun head to prevent the high-temperature debris generated by laser welding from splashing and injuring the welder by mistake. At the same time, the splashing debris is prevented from affecting the welding line of sight, thereby making the welding more accurate. The wire winding trough spirals and stacks the wires, making it convenient to select the appropriate wire length according to needs, and making it more convenient to use.

[0013] 2. In the utility model, during welding, the vacuum pump is started to discharge the air inside the purification chamber through the exhaust pipe, so that suction is generated inside the purification chamber due to negative pressure, and the telescopic hose sucks in the smoke and debris generated by welding. The smoke and debris enter the purification chamber and are purified and filtered through the purification net box, which is more convenient to use and prevents the smoke generated by welding from polluting the environment. When the laser welder is working, the cooling fan is started to accelerate the air flow inside the equipment cavity, thereby cooling the laser welder to prevent the laser welder from malfunctioning due to excessive temperature and inability to dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main appearance structure in the embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the protective cover structure in an embodiment of the present application;

[0017] Figure 3 Schematic diagram of the cross-sectional structure of the box in the embodiment of the present application;

[0018] Figure 4 This is a schematic diagram of the purification box structure in the embodiment of the present application.

[0019] In the figure: 1. Box body; 2. Partition; 3. Purification chamber; 4. Equipment chamber; 5. Laser welder; 6. Wire; 7. Gun head; 8. Protective cover; 9. Mounting plate; 10. Connection groove; 11. Connection ring; 12. Telescopic hose; 13. Threaded part; 14. Threaded hole; 15. Grip ring; 16. Control switch; 17. Purification net box; 18. Support plate; 19. Placement groove; 20. Cooling fan; 21. Wire trough. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] refer to Figure 1-4A handheld laser welding device is shown, comprising a box body 1, an inner wall of the box body 1 is provided with a partition 2, the partition 2 divides the inner wall of the box body 1 into a purification chamber 3 and an equipment chamber 4, a laser welder 5 is placed inside the equipment chamber 4, the laser welder 5 is provided with a wire 6 that runs through the box body 1, a gun head 7 is provided at the end of the wire 6, a protective cover 8 is provided on the outer wall of the gun head 7, the protective cover 8 is adapted to the gun head 7, a mounting plate 9 is provided on the outer wall of the gun head 7, a connecting plate is provided at the bottom of the protective cover 8, a connecting groove 10 is provided on the top outer wall of the mounting plate 9, a connecting ring 11 adapted to the connecting groove 10 is provided at the bottom of the connecting plate, a wire winding groove 21 is provided on one side of the top outer wall of the support plate 18, the inner wall of the wire winding groove 21 is stacked with wires 6, a grip ring 15 and a control switch 16 are provided on the outer wall of the gun head 7, the grip ring 15 and the control switch 16 are respectively adapted to the gun head 7.

[0023] By means of the above structure: when in use, the connecting ring 11 at the bottom of the protective cover 8 is connected to the connecting groove 10 at the top of the mounting plate 9 so that the protective cover 8 is installed on the outside of the gun head 7. When laser welding is performed, the protective cover 8 protects the gun head 7 to prevent the high-temperature debris generated by the laser welding from splashing and accidentally injuring the welder, and at the same time prevents the splashing debris from affecting the welding line of sight, thereby making the welding more precise. The wire winding trough 21 spirals and stacks the wires 6, making it convenient to select the appropriate length of the wires 6 according to needs, and making it more convenient to use.

[0024] Example 2

[0025] like Figure 3 As shown, a telescopic hose 12 leading to the purification chamber 3 is provided at one end of the top outer wall of the box body 1, a threaded piece 13 is provided at the end of the telescopic hose 12, a threaded hole 14 matched with the threaded piece 13 is provided on the outer wall of the protective cover 8, a purification net box 17 is slidably installed on the inner wall of the purification chamber 3, the inner wall of the purification net box 17 is filled with activated carbon, a slot matched with the purification net box 17 is provided on the outer wall of the box body 1, an exhaust pipe penetrating the box body 1 is provided at the bottom of the inner wall on one side of the purification chamber 3, and an exhaust pump is installed on the exhaust pipe. During laser welding, the telescopic hose 12 is connected to the protective cover 8. During welding, the exhaust pump is started to discharge the air inside the purification chamber 3 through the exhaust pipe, so that the inside of the purification chamber 3 generates suction due to the negative pressure, and the telescopic hose 12 sucks in the smoke and debris generated by welding. The smoke and debris enter the purification chamber 3 and are purified and filtered through the purification net box 17, which is more convenient to use and prevents the smoke generated by welding from polluting the environment.

[0026] like Figure 3As shown, the equipment cavity 4 is provided with a support plate 18, a placement groove 19 is provided on the top outer wall of the support plate 18, the laser welder 5 is placed inside the placement groove 19, a heat dissipation fan 20 is installed on the bottom inner wall of the equipment cavity 4, and air holes are provided on the top and bottom of the box body 1 and the bottom of the placement groove 19. When the laser welder 5 is working, the heat dissipation fan 20 starts to accelerate the air flow inside the equipment cavity 4, thereby cooling the laser welder 5 to prevent the laser welder 5 from being overheated and unable to dissipate heat, resulting in malfunction.

[0027] How this utility works:

[0028] When in use, the connecting ring 11 at the bottom of the protective cover 8 is connected to the connecting groove 10 at the top of the mounting plate 9 so that the protective cover 8 is installed outside the gun head 7. When laser welding is performed, the protective cover 8 protects the gun head 7 to prevent the high-temperature debris generated by laser welding from splashing and injuring the welder by mistake, and at the same time prevents the splashing debris from affecting the welding line of sight, thereby making the welding more accurate. The wire winding groove 21 spirals and stacks the wire 6, so that it is convenient to select the appropriate length of the wire 6 according to the needs, and it is more convenient to use;

[0029] During welding, the vacuum pump is started to discharge the air inside the purification chamber 3 through the exhaust pipe, so that suction is generated inside the purification chamber 3 due to negative pressure, and the telescopic hose 12 sucks in the smoke and debris generated by welding. The smoke and debris enter the purification chamber 3 and are purified and filtered through the purification net box 17, which is more convenient to use and prevents the smoke generated by welding from polluting the environment. When the laser welder 5 is working, the cooling fan 20 is started to accelerate the air flow inside the equipment cavity 4, thereby cooling the laser welder 5 to prevent the laser welder 5 from malfunctioning due to excessive temperature and inability to dissipate heat.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. 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 welding device, comprising a housing (1), characterized in that: The inner wall of the box (1) is provided with a partition (2), and the partition (2) divides the inner wall of the box (1) into a purification chamber (3) and an equipment chamber (4). A laser welder (5) is placed inside the equipment chamber (4). The laser welder (5) is provided with a wire (6) that runs through the box (1). A gun head (7) is provided at the end of the wire (6). A protective cover (8) is provided on the outer wall of the gun head (7). The protective cover (8) is matched with the gun head (7). A mounting plate (9) is provided on the outer wall of the gun head (7). A connecting plate is provided at the bottom of the protective cover (8). A connecting groove (10) is provided on the outer wall of the top of the mounting plate (9). A connecting ring (11) matched with the connecting groove (10) is provided at the bottom of the connecting plate. A telescopic hose (12) leading into the purification chamber (3) is arranged at one end of the top outer wall of the box body (1), a threaded member (13) is arranged at the end of the telescopic hose (12), and a threaded hole (14) matching the threaded member (13) is opened on the outer wall of the protective cover (8); A purification net box (17) is slidably mounted on the inner wall of the purification chamber (3), the inner wall of the purification net box (17) is filled with activated carbon, a slot adapted to the purification net box (17) is provided on the outer wall of the box body (1), an exhaust pipe penetrating the box body (1) is provided at the bottom of the inner wall on one side of the purification chamber (3), and an exhaust pump is installed on the exhaust pipe; The equipment cavity (4) is provided with a support plate (18), the top outer wall of the support plate (18) is provided with a placement groove (19), the laser welder (5) is placed inside the placement groove (19), a heat dissipation fan (20) is installed on the bottom inner wall of the equipment cavity (4), and ventilation holes are provided on the top and bottom of the box body (1) and the bottom of the placement groove (19); A wire winding groove (21) is provided on one side of the outer wall at the top of the support plate (18), and conductive wires (6) are stacked on the inner wall of the wire winding groove (21).

2. A handheld laser welding device according to claim 1, characterized in that: The outer wall of the gun head (7) is provided with a grip ring (15) and a control switch (16), and the grip ring (15) and the control switch (16) are respectively adapted to the gun head (7).

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