Safe handheld laser welding machine

Abstract

The safe handheld laser welding machine comprises a handheld part and a welding pipe, the welding pipe is provided with a welding head, the welding head is connected with a wire feeding frame, the welding pipe is fixedly connected with a protection plate, the protection plate comprises an eye protection plate and a connecting plate, the eye protection plate and the connecting plate are both fixedly connected with the welding pipe, the eye protection plate is provided with a plurality of protective glasses in the circumferential direction, and the protective glasses are fixedly connected with the welding pipe. A ventilation cavity is formed between the eye protection plate and the connecting plate in the axial direction of the protection plate, an air suction cavity is formed between the eye protection plate and the connecting plate in the radial direction of the protection plate, the protection plate is fixedly connected with an air conveying pipe, the air conveying pipe is connected with a dust suction fan and a dust collection box, and the welding pipe is detachably connected with a cleaning assembly used for cleaning the air suction cavity and the ventilation cavity. And by arranging an eye protection plate and a connecting plate, the eyes, the skin and the respiratory system of the operator can be protected, the body harm to the operator is reduced, and the safety during welding operation is improved.

Description

Technical Field

[0001] The invention relates to the field of laser welding, in particular to a safe handheld laser welding machine. Background Art

[0002] With the rapid development of industries such as automobiles, aerospace, electronics, hardware processing, and medical devices, the requirements for welding quality and efficiency are constantly increasing. Traditional welding methods can no longer meet the needs for high-quality, high-efficiency, and high-precision welding due to their low efficiency and lack of precision. Laser welding technology has developed rapidly with its advantages of high precision and high efficiency. As an innovative application of laser welding technology, handheld laser welding machines are widely used in various fields due to their portability, flexibility, high precision, and high efficiency.

[0003] In the related technology, the handheld laser welding machine allows welding work to be carried out anytime and anywhere without being restricted by the site. Its working principle is mainly to utilize the high energy density of the laser beam and focus the laser beam into a very small area through a focusing mirror, so that the workpiece to be welded reaches a melting state in a very short time, thereby achieving welding.

[0004] Regarding the above-mentioned related technologies, during the laser welding process, people will be exposed to an environment with lasers. Whether looking directly at the laser beam or the reflected beam, it may cause eye and skin damage to the operator or the people around them. If the laser is reflected into the eye, it will cause irreversible damage to the retina. In addition, there will be very small, flammable smoke particles on the surface and around the workpiece, which will cause potential harm to the human body. Summary of the invention

[0005] In order to reduce the physical harm to operators and improve the safety during welding operations, the present application provides a safe handheld laser welding machine.

[0006] The present application provides a safe handheld laser welding machine, which adopts the following technical solutions: A safe handheld laser welding machine comprises a handheld part and a welding tube, wherein the welding tube is provided with a welding head, and the welding head is connected to a wire feeding rack, and is characterized in that: the welding tube is fixedly connected with a protective plate, the protective plate comprises an eye shield and a connecting plate, the eye shield and the connecting plate are both fixedly connected to the welding tube, a plurality of protective glasses are circumferentially provided with the eye shield, a ventilation cavity is axially provided between the eye shield and the connecting plate, an air suction cavity is radially provided between the eye shield and the connecting plate, the protective plate is fixedly connected with an air supply pipe, the air supply pipe is connected with a dust suction fan and a dust collecting box, and the welding tube is detachably connected with a cleaning component for cleaning the air suction cavity and the ventilation cavity.

[0007] By adopting the above technical solution, during welding operations, the protective glasses on the goggles shield the laser beam during welding, thereby protecting the eyes and skin of the operator; at the same time, the dust suction fan is started during welding, and under the action of the dust suction fan, the air supply pipe sucks air into the ventilation cavity and the suction cavity, and the connecting plate is located close to the laser welding position, thereby absorbing and treating the smoke particles generated by the laser welding; by providing the goggles and the connecting plates, the eyes, skin, and respiratory system of the operator can be protected, thereby reducing the physical harm to the operator and improving the safety during welding operations.

[0008] Optionally, the cleaning assembly includes a turntable, a first gear, a plurality of second gears, a plurality of third gears and a first brush fixedly connected to the third gear, the first brush is provided with a plurality of soft first bristles, the length of the first bristles is the same as the radius of the connecting plate, the welding tube and the first gear are both rotatably connected to the turntable, the turntable and the first gear are both provided with through holes adapted to the welding tube, the first gear is provided with a positioning assembly for positioning the welding tube, all the second gears are meshed with the first gear, a rotating rod rotatably connected to the turntable is fixedly connected to the middle of the second gear, and the side of the rotating rod facing away from the second gear is fixedly connected to the corresponding third gear.

[0009] By adopting the above technical solution, the turntable and the first gear are sleeved on the welding pipe, the first brush is extended into the suction cavity, the relative position of the first gear and the welding pipe is fixed by the positioning assembly, the operator rotates the turntable, the second gear, the third gear and the first brush all rotate with the turntable, and the first brush wipes and cleans the suction cavity and the ventilation cavity; and the first brush rotates while rotating with the turntable, thereby improving the cleaning effect of the suction cavity and the ventilation cavity.

[0010] Optionally, the turntable is connected to a plurality of fourth gears for circumferential rotation, the fourth gears are meshed with corresponding third gears, the fourth gears are fixedly connected to a second brush that matches the protective mirror, and the second brush is provided with a plurality of soft second bristles.

[0011] By adopting the above technical solution, the fourth gear and the second brush both rotate with the turntable, and then the second brush wipes and cleans the protective mirror. Under the meshing transmission action of the fourth gear and the third gear, the second brush rotates while rotating with the turntable, which is beneficial to improve the cleaning effect of the protective mirror.

[0012] Optionally, the positioning assembly includes a sleeve and a plurality of screws, the screws are arranged along the circumference of the sleeve, the screws pass through the sleeve and are threadedly connected to the sleeve, and the welding pipe is provided with a plurality of shallow grooves adapted to the screws.

[0013] By adopting the above technical solution, the first gear is sleeved on the welding pipe, and by tightening the screw, the screw is inserted into the corresponding shallow groove on the welding pipe, so that the positioning of the first gear is more convenient and the first gear is prevented from rotating when the turntable is rotated.

[0014] Optionally, the wire feeding frame is fixedly connected with a sleeve matched with the welding head, the sleeve is provided with an opening, and the sleeve is connected with a bolt for locking the opening.

[0015] By adopting the above technical solution, the collar is put on the welding head and locked by bolts, so as to ensure stable wire feeding during welding and ensure the welding effect.

[0016] Optionally, the wire feeding rack is provided with a wire feeding tube, and the wire feeding tube is provided with a plurality of clamping rings matched with the air pipe along the length direction.

[0017] By adopting the above technical solution, the gas pipe is passed through the clamping ring on the wire feeding pipe, so as to avoid the gas pipe being entangled with the welding pipe and the wire feeding pipe during mobile welding, which is beneficial to ensuring the welding effect.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: During welding, the protective glasses on the goggles shield the laser beam during welding and protect the eyes and skin of the operators. At the same time, the dust suction fan is started during welding. Under the action of the dust suction fan, the air pipe sucks air from the ventilation cavity and the suction cavity. The connecting plate is located close to the laser welding position, so that the smoke particles generated by the laser welding can be absorbed. By setting the goggles and connecting plates, the eyes, skin and respiratory system of the operators can be protected, the physical harm to the operators can be reduced, and the safety of welding operations can be improved. The turntable and the first gear are sleeved on the welding pipe, the first brush is extended into the suction cavity, the relative position of the first gear and the welding pipe is fixed by the positioning assembly, the operator rotates the turntable, the second gear, the third gear and the first brush rotate with the turntable, the first brush wipes and cleans the suction cavity and the ventilation cavity; and the first brush rotates while rotating with the turntable, so as to improve the cleaning effect of the suction cavity and the ventilation cavity; The fourth gear and the second brush both rotate with the turntable, so that the second brush wipes and cleans the protective mirror, and under the meshing transmission action of the fourth gear and the third gear, the second brush rotates while rotating with the turntable, which is beneficial to improving the cleaning effect of the protective mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a safe handheld laser welding machine according to an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the protective plate.

[0021] Figure 3 It is a schematic diagram of the connection between the protective plate and the cleaning component.

[0022] Figure 4 It is a schematic diagram of the structure of the cleaning component.

[0023] Explanation of the reference numerals: 1. Hand-held part; 2. Welding tube; 21. Welding head; 3. Wire feed rack; 31. Ring; 311. Bolt; 32. Wire feed tube; 321. Snap ring; 4. Protective plate; 41. Eye shield; 42. Connecting plate; 411. Protective glasses; 43. Ventilation chamber; 44. Air suction chamber; 45. Air pipe; 46. Dust suction fan; 47. Dust collecting box; 5. Cleaning assembly; 51. Turntable; 52. First gear; 53. Second gear; 531. Rotating rod; 54. Third gear; 55. First brush; 56. Fourth gear; 57. Second brush; 61. Sleeve; 62. Screw. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0025] The embodiment of the present application discloses a safe handheld laser welding machine. Example

[0026] Reference Figure 1 A safe handheld laser welding machine includes a handheld part 1 and a welding tube 2. The welding tube 2 is provided with a welding head 21. The welding head 21 is connected to a wire feeding frame 3. The wire feeding frame 3 is fixedly connected to a sleeve 31 adapted to the welding head 21. The sleeve 31 is provided with an opening. The sleeve 31 of the wire feeding frame 3 is sleeved on the welding head 21. The sleeve 31 is connected with a bolt 311. Connecting pieces are fixedly provided on both sides of the sleeve 31 close to the opening. The bolt 311 passes through one of the connecting pieces and is threadedly connected to the other connecting piece. The bolt 311 is used for locking to ensure stable wire feeding during welding and ensure the welding effect. After welding, the bolt 311 is removed, and the sleeve 31 is removed from the welding head 21, so that the wire feeding frame 3 and the welding head 21 can be disassembled and separated.

[0027] Reference Figure 1 The welding pipe 2 is fixedly connected with a protective plate 4, which includes an eye shield 41 and a connecting plate 42. The eye shield 41 and the connecting plate 42 are fixedly connected to the welding pipe 2. The welding pipe 2 is penetrated by the eye shield 41 and the connecting plate 42, and the eye shield 41 and the connecting plate 42 are concentrically arranged. The eye shield 41 is provided with a plurality of protective glasses 411 along the circumferential direction. When a handheld laser welding machine is used for welding, the protective glasses 411 on the eye shield 41 are located near the laser welding position. The protective glasses 411 shield the laser beam during welding to protect the eyes and skin of the operator.

[0028] Reference Figure 1 and Figure 2 A ventilation cavity 43 is provided between the eye shield 41 and the connecting plate 42 along the axial direction of the protective plate 4, and an air suction cavity 44 is provided between the eye shield 41 and the connecting plate 42 along the radial direction of the protective plate 4. The ventilation cavity 43 is connected to the air suction cavity 44. The protective plate 4 is fixedly connected to an air supply pipe 45, and the end of the air supply pipe 45 away from the protective plate 4 is connected to a dust suction fan 46 and a dust collection box 47. During welding, the operator starts the dust suction fan 46, and under the negative pressure adsorption of the dust suction fan 46, the air supply pipe 45 sucks air from the ventilation cavity 43 and the air suction cavity 44. The connecting plate 42 is located near the laser welding position, and can absorb and process the smoke particles generated by the laser welding, and collect the absorbed smoke particles into the dust collection box 47 through the air supply pipe 45.

[0029] Reference Figure 1 and Figure 3 The wire feeding frame 3 is provided with a wire feeding tube 32, and the wire feeding tube 32 is provided with a plurality of clamping rings 321 along the length direction. The gas pipe 45 is sequentially passed through the clamping rings 321 on the wire feeding tube 32, so as to avoid the gas pipe 45 from winding around the welding tube 2 and the wire feeding tube 32 during the mobile welding process, which is beneficial to ensure the welding effect. By providing the eye shield 41 and the connecting plate 42, the eyes, skin and respiratory system of the operator can be protected, the physical harm caused to the operator can be reduced, and the safety during the welding operation can be improved.

[0030] Reference Figure 2 and Figure 4 After long-term use of the laser welding machine, a large amount of smoke and dust impurities will adhere to the inner walls around the suction chamber 44 and the ventilation chamber 43. The accumulation of smoke and dust impurities is likely to affect the absorption and treatment of smoke particles. The welding pipe 2 is detachably connected with a cleaning assembly 5, which includes a turntable 51, a first gear 52, a plurality of second gears 53, three third gears 54 and a first brush 55 fixedly connected to the third gear 54. The first brush 55 is provided with a plurality of soft first bristles, and the number of the second gears 53 is the same as the number of the third gears 54. The welding pipe 2 and the first gear 52 are both rotatably connected to the turntable 51, and the turntable 51 and the first gear 52 are both provided with through holes adapted to the welding pipe 2.

[0031] Reference Figure 3 and Figure 4 The first gear 52 is provided with a positioning assembly for positioning with the welding pipe 2, and the positioning assembly includes a sleeve 61 and three screws 62. The sleeve 61 is located on the side of the first gear 52 away from the rotating disk 51. The screws 62 are arranged at equal angles along the circumference of the sleeve 61. The screws 62 pass through the sleeve 61 and are threadedly connected with the sleeve 61. The welding pipe 2 is provided with three shallow grooves adapted to the screws 62.

[0032] Reference Figure 2 and Figure 3When cleaning the suction chamber 44 and the ventilation chamber 43, the first gear 52 is sleeved on the welding pipe 2. By tightening the screw 62, the screw 62 is inserted into the corresponding shallow groove on the welding pipe 2 to achieve the positioning of the first gear 52, avoiding the first gear 52 from rotating when the turntable 51 is rotated, which is beneficial to ensuring the cleaning effect of the suction chamber 44 and the ventilation chamber 43.

[0033] Reference Figure 3 and Figure 4 , all the second gears 53 are meshed with the first gear 52, and the second gears 53 are arranged at equal angles along the circumference of the first gear 52. A rotating rod 531 is fixedly connected to the middle of the second gear 53 and is rotatably connected to the rotating disk 51. The side of the rotating rod 531 facing away from the second gear 53 is fixedly connected to the corresponding third gear 54. When the cleaning assembly 5 cleans the suction chamber 44 and the ventilation chamber 43, the operator sets the rotating disk 51 and the first gear 52 on the welding pipe 2, extends the first brush 55 into the suction chamber 44, and fixes the relative position of the first gear 52 and the welding pipe 2 through the positioning assembly. The operator rotates the rotating disk 51, and the second gear 53, the third gear 54 and the first brush 55 rotate with the rotating disk 51. The length of the first brush is the same as the radius of the connecting plate 42, and then the first brush on the first brush 55 wipes and cleans the suction chamber 44 and the ventilation chamber 43.

[0034] Reference Figure 3 and Figure 4 At the same time, under the meshing transmission action of the second gear 53 and the first gear 52, the third gear 54 drives the first bristles on the first brush 55 to rotate, and the first bristles rotate while rotating with the turntable 51, which is beneficial to improve the cleaning effect of the suction chamber 44 and the ventilation chamber 43, and ensure the subsequent normal absorption and processing of smoke particles.

[0035] Reference Figure 3 and Figure 4 After long-term use of the laser welding machine, a large amount of smoke and dust impurities will adhere to the goggles, affecting the operator's vision during welding. The turntable 51 is connected to three fourth gears 56 along the circumferential rotation. The number of the fourth gears 56 is the same as that of the third gears 54. When the operator rotates the turntable 51, the fourth gears 56 and the second brush 57 rotate with the turntable 51, and then the second bristles on the second brush 57 wipe and clean the protective glasses 411.

[0036] Reference Figure 3 and Figure 4The fourth gear 56 is meshed with the corresponding third gear 54. The fourth gear 56 is fixedly connected with a second brush 57 that matches the protective mirror 411. The second brush 57 is provided with a plurality of soft second bristles. Under the meshing transmission action of the fourth gear 56 and the third gear 54, the fourth gear 56 drives the second bristles on the second brush 57 to rotate. The second bristles rotate while the turntable 51 rotates, thereby improving the cleaning effect of the protective mirror 411 and facilitating the protection effect of the subsequent goggles.

[0037] The implementation principle of a safe handheld laser welding machine in the present application is as follows: when the operator uses the handheld laser welding machine for welding, the protective glasses 411 on the eye shield 41 are located near the laser welding position, and the protective glasses 411 shield the laser beam during welding to protect the eyes and skin of the operator. During welding, the operator starts the dust suction fan 46. Under the negative pressure adsorption of the dust suction fan 46, the air supply pipe 45 sucks air from the ventilation cavity 43 and the suction cavity 44. The connecting plate 42 is located near the laser welding position, and the smoke particles generated by the laser welding can be absorbed and processed, and the absorbed smoke particles are collected into the dust box 47 through the air supply pipe 45. By setting the eye shield 41 and the connecting plate 42, the eyes, skin, and respiratory system of the operator can be protected, reducing the physical harm caused to the operator and improving the safety during welding operations.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safe handheld laser welding machine, comprising a handheld part (1) and a welding tube (2), the welding tube (2) being provided with a welding head (21), the welding head (21) being connected to a wire feeding frame (3), characterized in that: The welding pipe (2) is fixedly connected to a protective plate (4), the protective plate (4) comprising an eye shield (41) and a connecting plate (42), the eye shield (41) and the connecting plate (42) being fixedly connected to the welding pipe (2), the eye shield (41) being provided with a plurality of protective glasses (411) along the circumferential direction, a ventilation cavity (43) being provided between the eye shield (41) and the connecting plate (42) along the axial direction of the protective plate (4), an air suction cavity (44) being provided between the eye shield (41) and the connecting plate (42) along the radial direction of the protective plate (4), the protective plate (4) being fixedly connected to an air supply pipe (45), the air supply pipe (45) being connected to a dust suction fan (46) and a dust collecting box (47), and the welding pipe (2) being detachably connected to a cleaning component (5) for cleaning the air suction cavity (44) and the ventilation cavity (43).

2. A safe handheld laser welding machine according to claim 1, characterized in that: The cleaning assembly (5) comprises a rotating disk (51), a first gear (52), a plurality of second gears (53), a plurality of third gears (54) and a first brush (55) fixedly connected to the third gear (54); the first brush (55) is provided with a plurality of soft first bristles, the length of the first bristles being the same as the radius of the connecting plate (42); the welding tube (2) and the first gear (52) are both rotatably connected to the rotating disk (51); the rotating disk (51) and the first gear (52) are both provided with through holes adapted to the welding tube (2); the first gear (52) is provided with a positioning assembly for positioning the welding tube (2); all the second gears (53) are meshed with the first gear (52); a rotating rod (531) rotatably connected to the rotating disk (51) is fixedly connected to the middle of the second gear (53); a side of the rotating rod (531) facing away from the second gear (53) is fixedly connected to the corresponding third gear (54).

3. A safe handheld laser welding machine according to claim 2, characterized in that: The rotating disk (51) is connected to a plurality of fourth gears (56) for rotation in the circumferential direction. The fourth gears (56) are meshed with corresponding third gears (54). The fourth gears (56) are fixedly connected to a second brush (57) that matches the protective mirror (411). The second brush (57) is provided with a plurality of soft second bristles.

4. A safe handheld laser welding machine according to claim 2, characterized in that: The positioning assembly comprises a sleeve (61) and a plurality of screws (62). The screws (62) are arranged along the circumference of the sleeve (61). The screws (62) pass through the sleeve (61) and are threadedly connected to the sleeve (61). The welding pipe (2) is provided with a plurality of shallow grooves adapted to the screws (62).

5. The safe handheld laser welding machine according to claim 1, characterized in that: The wire feeding frame (3) is fixedly connected to a sleeve ring (31) adapted to the welding head (21); the sleeve ring (31) is provided with an opening; and the sleeve ring (31) is connected to a bolt (311) for locking the opening.

6. The safe handheld laser welding machine according to claim 1, characterized in that: The wire feeding frame (3) is provided with a wire feeding tube (32), and the wire feeding tube (32) is provided with a plurality of clamping rings (321) adapted to the air delivery tube (45) along the length direction.

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