A handheld laser welding machine that prevents metal spatter

Abstract

This utility model relates to the field of handheld laser welding machine technology, specifically disclosing a handheld laser welding machine that prevents metal spatter. It includes a handheld laser welding gun body, with an arc-shaped cover and a collection frame on the outside. The left side of the arc-shaped cover is open, and the arc-shaped cover and the collection frame are connected by a flexible metal tube. A movable sealing mechanism is provided on the outside of the collection frame. The arc-shaped cover and the collection frame are connected by a flexibly adjustable flexible metal tube, aligning the opening of the arc-shaped cover with the direction of welding spatter. During welding, a negative pressure pump is activated, and the generated metal spatter is sucked into the arc-shaped cover, enters the collection frame through the flexible metal tube, and is intercepted by a filter cylinder with mesh openings, thus achieving the attraction and collection of metal spatter, effectively preventing spatter burns to operators and adhesion to the workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of handheld laser welding machine technology, and specifically discloses a handheld laser welding machine that prevents metal spatter. Background Technology

[0002] A handheld laser welding machine is a complete welding device integrating laser emission, energy control, and operation execution functions. Its core operating component is the handheld laser welding gun. This welding gun, through its grip design, gives the device high flexibility, adapting to welding operations on various complex metal workpieces. Leveraging the concentrated and precise characteristics of laser energy, the handheld laser welding machine boasts advantages such as high welding accuracy, a small heat-affected zone, and aesthetically pleasing and high-strength welds. It is widely used in hardware processing, automotive manufacturing, medical device industries, and other fields, significantly improving the efficiency and quality stability of metal welding.

[0003] Existing handheld laser welding machines generally lack effective metal spatter protection and collection capabilities. Metal spatter generated during welding not only easily burns operators, posing a threat to their personal safety, but also adheres to the workpiece surface, forming irregular bumps or spots, affecting the workpiece's appearance quality. Therefore, a handheld laser welding machine that prevents metal spatter is needed to solve these problems. Utility Model Content

[0004] This invention proposes a handheld laser welding machine that prevents metal spatter. By attracting and collecting metal spatter, it can prevent operators from being burned by metal spatter generated during the welding process and avoid metal spatter adhering to the surface of the workpiece.

[0005] This utility model is implemented as follows: a handheld laser welding machine that prevents metal spatter includes a handheld laser welding gun body, an arc-shaped cover and a collection frame are provided on the outside of the handheld laser welding gun body, the left side of the arc-shaped cover is an open structure, and the arc-shaped cover and the collection frame are connected by a metal shaped flexible tube.

[0006] The outer side of the collection frame is provided with a movable sealing mechanism, which includes L-shaped plates fixedly connected to the front and rear ends of the collection frame respectively. A movable shaft is rotatably connected between the two L-shaped plates. A movable plate is fixedly connected to the outer wall of the movable shaft. A top cover is fixedly connected to the upper end of the movable plate. A rectangular sealing ring that abuts against the lower end of the top cover is embedded in the upper end of the collection frame through a groove. A connecting pipe is fixedly connected through the upper end of the top cover.

[0007] A drive mechanism is provided on the front side of the rectangular sealing ring;

[0008] The collection frame is equipped with a filter cylinder inside, and the outer wall of the filter cylinder has multiple mesh holes.

[0009] As a preferred embodiment of the present invention, a handheld laser welding machine for preventing metal spatter includes a drive mechanism comprising a drive frame fixedly connected to the front end of an L-shaped plate, a worm gear rotatably connected inside the drive frame, a worm wheel meshing with the outer wall of the worm gear, a transmission shaft fixedly connected between the worm wheel and a movable shaft, and a handle extending to the outer wall of the drive frame fixedly connected to the upper end of the worm gear.

[0010] As a preferred embodiment of the present invention, a handheld laser welding machine for preventing metal spatter is provided, wherein an internally threaded cylinder is fixedly connected to the lower end of the top cover, an externally threaded ring is threadedly connected to the inner wall of the internally threaded cylinder, and the filter cylinder is fixedly connected to the lower end of the externally threaded ring.

[0011] As a preferred embodiment of the handheld laser welding machine for preventing metal spatter according to this utility model, the upper end of the connecting pipe is equipped with a negative pressure quick-release connector.

[0012] In a preferred embodiment of this utility model of a handheld laser welding machine that prevents metal spatter, the rectangular sealing ring is made of fluororubber.

[0013] As a preferred embodiment of the present invention, a handheld laser welding machine for preventing metal spatter is provided, wherein a fixing block is fixedly connected between the collection frame and the handheld laser welding gun body.

[0014] The beneficial effects of this utility model are:

[0015] The drive mechanism rotates the movable shaft and movable plate to flip the top cover downwards to a horizontal position, where it tightly abuts against the rectangular sealing ring to achieve a seal. The connecting pipe is connected to the metal hose of the external negative pressure pump. A flexibly adjustable metal hose connects the arc-shaped cover and the collection frame, aligning the opening of the arc-shaped cover with the direction of welding spatter. During welding, the negative pressure pump starts, and the generated metal spatter is drawn into the arc-shaped cover, passes through the metal hose, and enters the collection frame. A filter with mesh openings intercepts the spatter, trapping it inside the collection frame. This effectively attracts and collects the metal spatter, preventing burns to operators and adhesion to the workpiece surface. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a front sectional view of the handheld laser welding machine with anti-metal spatter feature of this utility model;

[0018] Figure 2This is a partial front cross-sectional view of the present invention;

[0019] Figure 3 This is a partial right-side cross-sectional view of the present invention;

[0020] Figure 4 This is a structural diagram of the arc-shaped cover of this utility model;

[0021] Figure 5 This is a structural diagram of the external threaded ring and filter cylinder of this utility model.

[0022] The markings in the diagram are: 1. Handheld laser welding gun body; 2. Arc-shaped cover; 3. Collection frame; 4. Metal shaping hose; 5. L-shaped plate; 6. Movable shaft; 7. Movable plate; 8. Top cover; 9. Rectangular sealing ring; 10. Negative pressure quick-release connector; 11. External threaded ring; 12. Filter cartridge; 13. Internal threaded cylinder; 14. Connecting pipe; 15. Drive frame; 16. Worm gear; 17. Worm wheel; 18. Fixing block. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-5 A handheld laser welding machine that prevents metal spatter includes a handheld laser welding gun body 1. The handheld laser welding gun body 1 is provided with an arc-shaped cover 2 and a collection frame 3 on the outside. The left side of the arc-shaped cover 2 is an open structure. The arc-shaped cover 2 and the collection frame 3 are connected by a metal shaped flexible tube 4.

[0025] A movable sealing mechanism is provided on the outside of the collection frame 3. The movable sealing mechanism includes L-shaped plates 5 fixedly connected to the front and rear ends of the collection frame 3 respectively. A movable shaft 6 is rotatably connected between the two L-shaped plates 5. A movable plate 7 is fixedly connected to the outer wall of the movable shaft 6. A top cover 8 is fixedly connected to the upper end of the movable plate 7. A rectangular sealing ring 9 is embedded in the upper end of the collection frame 3 through a groove and abuts against the lower end of the top cover 8. A connecting pipe 14 is fixedly connected through the upper end of the top cover 8.

[0026] A drive mechanism is provided on the front side of the rectangular sealing ring 9;

[0027] The collection frame 3 is equipped with a filter cylinder 12 inside, and the outer wall of the filter cylinder 12 has multiple mesh holes.

[0028] In this embodiment: First, the filter cartridge 12 is installed and fixed. The external threaded ring 11 connected to the filter cartridge 12 is screwed into the internal threaded cylinder 13, so that the external threaded ring 11 is tightly abutted against the lower end face of the top cover 8, thereby completing the installation of the filter cartridge 12.

[0029] Subsequently, the drive mechanism drives the movable shaft 6 to rotate counterclockwise between the two L-shaped plates 5. The movable shaft 6 then drives the movable plate 7 to rotate, causing the top cover 8 to flip downwards. When the top cover 8 rotates to a horizontal position, its lower end abuts tightly against the rectangular sealing ring 9, achieving a seal between the collection frame 3 and the top cover 8.

[0030] Next, connect the connecting pipe 14 to the negative pressure pipe of the external negative pressure pump (the negative pressure pipe should be a metal flexible hose). Since the arc-shaped cover 2 and the collection frame 3 are connected by a metal shaped flexible hose 4, the position of the arc-shaped cover 2 can be flexibly adjusted to avoid interference with welding operations under different working conditions, and to make the opening of the arc-shaped cover 2 aligned with the direction of metal spatter.

[0031] When the handheld laser welding gun body 1 is used for welding, the external negative pressure pump is activated to generate negative pressure. Under the action of negative pressure, the metal spatter generated during the welding process enters the interior of the arc-shaped cover 2 through the opening on the left side of the arc-shaped cover 2, and is then transported to the collection frame 3 through the metal shaping hose 4. Because the filter cylinder 12 is located inside the collection frame 3 and has multiple mesh openings on its outer wall, the metal spatter is intercepted by the filter cylinder 12 and collected in the collection frame 3, thereby achieving the attraction and collection of metal spatter, effectively preventing spatter from burning the operator and adhering to the surface of the workpiece.

[0032] When it is necessary to clean the collected waste, the drive mechanism drives the movable shaft 6, movable plate 7, and top cover 8 to rotate in the opposite direction. Opening the top cover 8 allows the waste in the collection frame 3 to be poured out. If it is necessary to clean the filter cylinder 12, after opening the top cover 8, loosen the connection between the external thread ring 11 and the internal thread cylinder 13, remove the filter cylinder 12, and reassemble it according to the above installation steps after cleaning. This achieves the purpose of convenient cleaning and maintenance.

[0033] Among them, the structure of the handheld laser welding gun body 1 is a mature existing technology that has been widely recognized and applied.

[0034] As a technical optimization of this utility model, the drive mechanism includes a drive frame 15 fixedly connected to the front end of the L-shaped plate 5 on the front side. A worm gear 16 is rotatably connected inside the drive frame 15. A worm wheel 17 is meshed with the outer wall of the worm gear 16. A transmission shaft is fixedly connected between the worm wheel 17 and the movable shaft 6. A handle extending to the outer wall of the drive frame 15 is fixedly connected to the upper end of the worm gear 16.

[0035] In this embodiment: rotating the handle of the drive mechanism drives the worm 16 to rotate, and the worm wheel 17 drives the movable shaft 6 to rotate counterclockwise between the two L-shaped plates 5 through the transmission shaft. Since the transmission of the worm 16 and the worm wheel 17 has a self-locking characteristic, it ensures that the movable shaft 6 will not rotate when the handle is not rotated, thereby ensuring that the pressing effect of the top cover 8 on the rectangular sealing ring 9 will not change.

[0036] As a technical optimization of this utility model, the lower end of the top cover 8 is fixedly connected to an internal threaded cylinder 13, and the inner wall of the internal threaded cylinder 13 is threadedly connected to an external threaded ring 11. The filter cylinder 12 is fixedly connected to the lower end of the external threaded ring 11.

[0037] In this embodiment, the filter cylinder 12 is threadedly connected to the internal thread cylinder 13 via the external threaded ring 11 at the upper end. After tightening, the filter cylinder 12 is fixedly installed. When disassembling, the filter cylinder 12 can be removed by rotating the external threaded ring 11 in the opposite direction.

[0038] As a technical optimization of this utility model, a negative pressure quick-release connector 10 is installed at the upper end of the connecting pipe 14.

[0039] In this embodiment, the negative pressure quick-release connector 10 at the upper end of the connecting pipe 14 can be quickly connected to the negative pressure pipeline of an external negative pressure pump.

[0040] As a technical optimization of this utility model, the rectangular sealing ring 9 is made of fluororubber.

[0041] In this embodiment: the rectangular sealing ring 9 is made of fluororubber. By utilizing the high temperature resistance and wear resistance of fluororubber, the reliability of the seal between the collection frame 3 and the top cover 8 is effectively enhanced.

[0042] As a technical optimization of this utility model, a fixing block 18 is fixedly connected between the collection frame 3 and the handheld laser welding gun body 1.

[0043] In this embodiment: by setting the fixing block 18, the collection frame 3 is stably installed on the handheld laser welding gun body 1.

[0044] The working principle and usage process of this utility model are as follows: First, the filter cylinder 12 is installed and fixed. The external threaded ring 11 connected to the filter cylinder 12 is screwed into the internal threaded cylinder 13, so that the external threaded ring 11 is tightly abutted against the lower end face of the top cover 8, thereby completing the installation of the filter cylinder 12.

[0045] Then, the handle of the drive mechanism is turned, which drives the worm gear 16 to rotate. The worm wheel 17 drives the movable shaft 6 to rotate counterclockwise between the two L-shaped plates 5 through the transmission shaft. The movable shaft 6 then drives the movable plate 7 to rotate, causing the top cover 8 to flip downward. When the top cover 8 rotates to the horizontal position, its lower end abuts tightly against the rectangular sealing ring 9, achieving a seal between the collection frame 3 and the top cover 8.

[0046] Next, connect the negative pressure quick-release connector 10 installed at the upper end of the connecting pipe 14 to the negative pressure pipeline of the external negative pressure pump to complete the docking of the negative pressure system. Since the arc-shaped cover 2 and the collection frame 3 are connected by a metal shaped flexible hose 4, the position of the arc-shaped cover 2 can be flexibly adjusted to avoid interference with welding operations under different working conditions, and to make the opening of the arc-shaped cover 2 aligned with the direction of metal spatter.

[0047] When the handheld laser welding gun body 1 is used for welding, the external negative pressure pump is activated to generate negative pressure. Under the action of negative pressure, the metal spatter generated during the welding process enters the interior of the arc-shaped cover 2 through the opening on the left side of the arc-shaped cover 2, and is then transported to the collection frame 3 through the metal shaping hose 4. Because the filter cylinder 12 is located inside the collection frame 3 and has multiple mesh openings on its outer wall, the metal spatter is intercepted by the filter cylinder 12 and collected in the collection frame 3, thereby achieving the attraction and collection of metal spatter, effectively preventing spatter from burning the operator and adhering to the surface of the workpiece.

[0048] When it is necessary to clean the collected waste, turn the handle at the upper end of the worm gear 16 in the opposite direction. This will drive the movable shaft 6, movable plate 7, and top cover 8 to rotate in the opposite direction via the drive mechanism. Opening the top cover 8 will allow the waste to be poured out of the collection frame 3. If it is necessary to clean the filter cylinder 12, after opening the top cover 8, loosen the connection between the external threaded ring 11 and the internal threaded cylinder 13, remove the filter cylinder 12, and reassemble it according to the installation steps described above after cleaning. This facilitates cleaning and maintenance.

[0049] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A handheld laser welding machine with protection against metal spatter, comprising a handheld laser welding gun body (1), characterized in that: The handheld laser welding gun body (1) is provided with an arc-shaped cover (2) and a collection frame (3) on the outside. The left side of the arc-shaped cover (2) is an open structure. The arc-shaped cover (2) and the collection frame (3) are connected by a metal shaped flexible tube (4). The outer side of the collection frame (3) is provided with a movable sealing mechanism. The movable sealing mechanism includes L-shaped plates (5) that are fixedly connected to the front and rear ends of the collection frame (3) respectively. A movable shaft (6) is rotatably connected between the two L-shaped plates (5). A movable plate (7) is fixedly connected to the outer wall of the movable shaft (6). A top cover (8) is fixedly connected to the upper end of the movable plate (7). A rectangular sealing ring (9) that abuts against the lower end of the top cover (8) is embedded in the upper end of the collection frame (3) through a groove. A connecting pipe (14) is fixedly connected through the upper end of the top cover (8). A driving mechanism is provided on the front side of the rectangular sealing ring (9); The collection frame (3) is provided with a filter cylinder (12) inside, and the outer wall of the filter cylinder (12) is provided with multiple mesh holes.

2. The handheld laser welding machine with anti-metal spatter protection according to claim 1, characterized in that: The drive mechanism includes a drive frame (15) fixedly connected to the front end of the L-shaped plate (5) on the front side. A worm (16) is rotatably connected inside the drive frame (15). A worm wheel (17) is meshed with the outer wall of the worm (16). A transmission shaft is fixedly connected between the worm wheel (17) and the movable shaft (6). A handle extending to the outer wall of the drive frame (15) is fixedly connected to the upper end of the worm (16).

3. A hand-held laser welder that prevents metal spatter according to claim 1, characterized in that: The lower end of the top cover (8) is fixedly connected to an internal threaded cylinder (13), and the inner wall of the internal threaded cylinder (13) is threadedly connected to an external threaded ring (11). The filter cylinder (12) is fixedly connected to the lower end of the external threaded ring (11).

4. The hand-held laser welder of claim 1, wherein: The upper end of the connecting pipe (14) is equipped with a negative pressure quick-release connector (10).

5. The hand-held laser welder of claim 1, wherein: The rectangular sealing ring (9) is made of fluororubber.

6. A handheld laser welding machine with anti-metal spatter protection according to claim 1, characterized in that: A fixing block (18) is fixedly connected between the collection frame (3) and the handheld laser welding gun body (1).

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