A laser welding device for interlocking bathroom towel racks

Abstract

The present invention belongs to the technical field of welding devices, and specifically relates to a laser welding device for a spliced ​​bathroom towel rack, comprising a workbench; a mechanical arm, the mechanical arm being arranged on one side of the workbench; a welding mechanism; an air blowing mechanism, used to blow air as the welding mechanism rotates, the air blowing mechanism comprising two air nozzles respectively located on both sides of the welding mechanism; and a clamping mechanism, used to clamp the weldment. The present invention can blow away dust attached to the welding mechanism through the air blowing mechanism as the welding mechanism rotates, blow air to adjacent welding places to blow away dust attached before welding and cool the weld, thereby improving welding quality and efficiency, and can clamp the weldment through the clamping mechanism and move and rotate along the workbench to weld different positions of the weldment, thereby avoiding the need to disassemble the support arm and the cross bar, flip them over, and re-fix them on the clamping mechanism, thereby improving welding efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of welding devices, and in particular relates to a laser welding device for a spliced ​​bathroom towel rack. Background Art

[0002] The spliced ​​bathroom towel rack is not just a single hanging rod, it usually contains multiple components, such as hooks, paper towel racks, storage racks, etc. These components can be combined at will to meet different storage needs, such as hanging towels, placing toiletries, storing paper towels, etc. The hanging rod is composed of a support arm and a crossbar. The support arm is generally a square tube, and the crossbar is generally a round tube. The two ends of the crossbar are usually welded to the support arm by a laser welding device. During welding, the support arm and the crossbar are fixed on the clamping mechanism, and the support arm and the crossbar are welded by the laser welding head driven by the mechanical arm.

[0003] During use of the existing laser welding device of the spliced ​​bathroom towel rack, the clamping mechanism is generally unable to drive the support arm and the cross bar to flip, so that the laser welding head can only weld the upper semicircular arc part of the welding point of the support arm and the cross bar. When the lower semicircular arc part needs to be welded, the support arm and the cross bar must be disassembled and flipped and re-fixed on the clamping mechanism. The welding efficiency is insufficient, and the laser welding head is generally directly exposed to the air. Dust adhering to the laser welding head can easily reduce the transmission efficiency of the laser beam, resulting in a decrease in welding quality. The existing solution is manual cleaning, which is difficult to clean automatically. The welding efficiency is insufficient, and the welding point of the support arm and the cross bar is generally directly exposed to the air. Dust can easily enter the welding point before welding, resulting in impurities in the weld, and the welding quality is insufficient. The weld after welding is usually placed in the environment for natural cooling. This method requires a long cooling time, which can easily lead to the precipitation of some undesirable phases, affecting the strength and toughness of the weld, and the welding efficiency is insufficient. Summary of the invention

[0004] The purpose of the present invention is to provide a laser welding device for a spliced ​​bathroom towel rack, which can blow away dust attached to the welding mechanism through the blowing mechanism as the welding mechanism rotates, blow air to adjacent welding points to blow away dust attached before welding and cool the weld, thereby improving welding quality and efficiency, and can clamp the weldment through the clamping mechanism and move and rotate along the workbench to weld different positions of the weldment, avoiding the need to disassemble the support arm and the cross bar, flip them over and re-fix them on the clamping mechanism, thereby improving welding efficiency.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A laser welding device for a spliced ​​bathroom towel rack, comprising:

[0007] Workbench;

[0008] A mechanical arm, wherein the mechanical arm is arranged on one side of the workbench;

[0009] A welding mechanism, wherein the welding mechanism is arranged at the end of the robot arm;

[0010] An air blowing mechanism, which is disposed between the robot arm and the welding mechanism and is used to blow air as the welding mechanism rotates, and comprises two air blowing heads respectively located on both sides of the welding mechanism;

[0011] A clamping mechanism, which is arranged on a workbench and is used to clamp the weldment, and includes an electric slide rail and a flip motor;

[0012] When the robotic arm drives the welding mechanism to rotate, it also drives the blowing mechanism to operate, so that the nozzle blows air to the welding mechanism or the welding position, and after the clamping mechanism works, it clamps the weldment and moves and rotates along the workbench.

[0013] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, wherein: the end of the mechanical arm is provided with an output end, the end of the output end is rotatably mounted with a flange, the welding mechanism includes a connecting plate fixedly connected to the flange, and the connecting plate is fixedly connected to a laser welding head.

[0014] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, the blowing mechanism also includes a shell arranged between the output end and the connecting plate, the upper end of the shell is fixedly connected to the outer wall of the output end, the lower end of the shell is rotatably connected to the top of the connecting plate, the top of the connecting plate is integrally connected with a protrusion, the connecting plate is connected to the flange through the protrusion, the outer wall of the protrusion is fixedly connected with a first baffle, the end of the first baffle is in contact with the inner wall of the shell, and the inner wall of the shell is fixedly connected with a second baffle , the end of the second baffle is in contact with the outer wall of the raised portion, a first air intake valve and a first exhaust valve are provided on one side of the second baffle, a second air intake valve and a second exhaust valve are provided on the other side of the second baffle, the first air intake valve, the first exhaust valve, the second air intake valve and the second exhaust valve are all fixedly connected to the shell, a four-way pipe is provided between the first exhaust valve, the second exhaust valve and the two nozzles, the first exhaust valve, the second exhaust valve and the two nozzles are connected through the four-way pipe, an adjustment component is provided on the laser welding head, and the nozzle is arranged at the lower end of the adjustment component.

[0015] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, the adjustment component includes a frame fixedly connected to the outer wall of the laser welding head, and slides are slidably installed on both sides of the frame, and the jet head is rotatably installed on the lower end of the slide.

[0016] As a preferred solution of the laser welding device of the spliced ​​bathroom towel rack described in the present invention, wherein: both sides of the frame are integrally connected with sliding arms, the sliding plate and the sliding arm are slidably matched, an electric telescopic rod is provided between the sliding plate and the frame, the electric telescopic rod is fixedly connected to the frame, and the output end of the electric telescopic rod is fixedly connected to the electric telescopic rod.

[0017] As a preferred solution of the laser welding device of the spliced ​​bathroom towel rack described in the present invention, the lower end of the slide plate is fixedly connected to an angle adjustment motor, the output end of the angle adjustment motor is fixedly connected to a clamping block, and the clamping block is clamped with the jet head.

[0018] As a preferred solution of the laser welding device of the spliced ​​bathroom towel rack described in the present invention, the end of the sliding arm is detachably connected to a limiting block, and the outer diameter of the limiting block is larger than the outer diameter of the sliding arm.

[0019] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, wherein: the clamping mechanism also includes a movable plate arranged above the workbench, the electric slide rail is located below one side of the movable plate, the electric slide rail is fixedly connected to the top of the workbench, the output end of the electric slide rail is fixedly connected to the bottom of the movable plate, the side of the movable plate away from the nozzle is slidably connected to the workbench, the internal rotation of the movable plate is connected with a rotating plate, the flip motor is arranged at one end of the rotating plate, the flip motor is fixedly connected to the movable plate, the output end of the flip motor is fixedly connected to the rotating plate, and the rotating plate is provided with a vertical clamp, a horizontal clamp and a cross bar limit assembly for clamping and fixing the weldment.

[0020] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, the cross bar limiting assembly includes a first limiting plate fixedly connected to a movable plate, a second limiting plate is provided above the first limiting plate, both ends of the second limiting plate are detachably connected to the movable plate, and the first limiting plate and the second limiting plate are both in contact with the weldment.

[0021] As a preferred solution of the laser welding device of a spliced ​​bathroom towel rack described in the present invention, wherein: a plurality of first limiting grooves are opened on the side of the first limiting plate close to the second limiting plate, and a plurality of second limiting grooves are opened on the side of the second limiting plate close to the first limiting plate, and the first limiting grooves and the second limiting grooves are both in fit with the outer wall of the weldment.

[0022] The technical effects achieved by the present invention are:

[0023] The present invention adopts the design of a blowing mechanism, which can blow away dust attached to the welding mechanism as the welding mechanism rotates, and can also blow air to adjacent welding points to blow away dust attached before welding and cool the weld. The output end drives the raised portion to rotate through the flange, so that the shell and the connecting plate rotate relative to each other. The raised portion drives the first baffle to rotate and then approaches the second baffle, so that the gas between the first baffle and the second baffle moves to the nozzle for discharge. The blowing angle of the nozzle and the distance between the nozzle and the laser welding head are adjusted by adjusting the assembly, so that the welding mechanism and the welding point are blown away, thereby blowing away dust on the welding mechanism and the welding point, and the weld can be cooled by blowing air, thereby improving the welding quality and efficiency.

[0024] The present invention adopts the design of a clamping mechanism, which can clamp the weldment and move and rotate along the workbench to weld different positions of the weldment. The rotating plate clamps and fixes the weldment through the vertical clamp, the horizontal clamp and the cross bar limit assembly. After the electric slide rail works, it drives the moving plate and the rotating plate to move along the workbench, which is convenient for welding cross bars at different positions. After the flip motor works, it drives the rotating plate to rotate along the moving plate, so that the rotating plate drives the weldment to flip, which is convenient for welding the lower semicircular arc part of the support arm and the cross bar welding point. Compared with the traditional method, the need to disassemble the support arm and the cross bar, flip them and re-fix them on the clamping mechanism is avoided, thereby improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the blowing mechanism and the welding mechanism in the present invention from one angle;

[0027] Figure 3 It is a structural schematic diagram of the blowing mechanism and the welding mechanism in the present invention from another angle;

[0028] Figure 4 The present invention Figure 3 The enlarged schematic diagram of point A in the middle;

[0029] Figure 5 is a cross-sectional schematic diagram of the output end and the housing in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the regulating component in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the four-way air pipe in the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the moving plate and the rotating plate in the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the rotating plate in the present invention;

[0034] Fig.10 It is an exploded schematic diagram of the crossbar limiting assembly in the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 10. Workbench;

[0037] 20. Mechanical arm; 21. Output end; 22. Flange;

[0038] 30. welding mechanism; 31. connecting plate; 311. raised portion; 312. first baffle; 32. laser welding head;

[0039] 40. Blowing mechanism; 41. Air jet; 42. Shell; 421. Second baffle; 43. First air inlet valve; 44. First air exhaust valve; 45. Second air inlet valve; 46. Second air exhaust valve; 47. Four-way air pipe; 48. Adjustment assembly; 481. Frame; 482. Slide plate; 483. Slide arm; 484. Electric telescopic rod; 485. Angle adjustment motor; 486. Block; 487. Limit block;

[0040] 50. Clamping mechanism; 51. Electric slide rail; 52. Flip motor; 53. Moving plate; 54. Rotating plate; 55. Vertical clamp; 56. Horizontal clamp; 57. Crossbar limiting assembly; 571. First limiting plate; 572. Second limiting plate; 573. First limiting groove; 574. Second limiting groove. DETAILED DESCRIPTION

[0041] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0042] Example 1

[0043] like Figure 1 and Figure 8As shown, it is the first embodiment of the present invention, which provides a laser welding device for a spliced ​​bathroom towel rack, including a workbench 10; a mechanical arm 20, which is arranged on one side of the workbench 10; a welding mechanism 30, which is arranged at the end of the mechanical arm 20; a blowing mechanism 40, which is arranged between the mechanical arm 20 and the welding mechanism 30, and is used for blowing as the welding mechanism 30 rotates, and the blowing mechanism 40 includes two air nozzles 41 respectively located on both sides of the welding mechanism 30; a clamping mechanism 50, which is arranged on the workbench 10 and is used for clamping the weldment, and the clamping mechanism 50 includes an electric slide rail 51 and a flip motor 52.

[0044] It should be noted that the clamping mechanism 50 clamps a weldment, which is made of aluminum alloy. Compared with stainless steel, aluminum alloy is lighter and thinner at the same strength, and aluminum alloy can be recycled to reduce resource consumption and is more energy-saving and environmentally friendly. The weldment includes two support arms and several cross bars, and the workbench 10 is hollow in design to facilitate the flipping of the weldment.

[0045] When the present invention is in use, the weldment is clamped and fixed in the clamping mechanism 50. After the clamping mechanism 50 is working, the electric slide rail 51 drives the weldment to move along the workbench 10, which is convenient for welding cross bars at different positions. The flip motor 52 drives the weldment to rotate along the workbench 10, which is convenient for flipping the weldment to weld the lower half of the arc after the upper half of the arc is welded. In this process, there is no need to disassemble and re-clamp the weldment, which improves the convenience of welding. During welding, the robot arm 20 drives the welding mechanism 30 to rotate to adjust the laser beam. During this process, the welding mechanism 30 and the blowing mechanism 40 rotate relative to each other, so that the gas in the blowing mechanism 40 is squeezed and discharged through the nozzle 41. When the nozzle 41 is directed toward the welding mechanism 30, the dust attached to the welding mechanism 30 is blown away. When the nozzle 41 is directed toward the welding point adjacent to the current welding point, if the adjacent welding point has not been welded, the dust attached to the welding point is blown away. If the adjacent welding point has been welded, the weld of the welding point is cold cut to improve the welding quality and efficiency.

[0046] Example 2

[0047] Reference Figures 1 to 10 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, an output end 21 is provided at the end of the robot arm 20, and a flange 22 is rotatably mounted at the end of the output end 21. The welding mechanism 30 includes a connecting plate 31 fixedly connected to the flange 22, and a laser welding head 32 is fixedly connected to the connecting plate 31.

[0049] It should be noted that the output end 21 and the flange 22 are both prior art, and a driving motor (not shown in the figure) is provided inside the output end 21 for driving the flange 22 to rotate.

[0050] According to the above structure, the output end 21 drives the flange 22 to rotate, and the flange 22 drives the laser welding head 32 through the connecting plate 31, so that the laser welding head 32 can weld the weldment.

[0051] like Figures 2 to 7 As shown, the blowing mechanism 40 also includes a shell 42 disposed between the output end 21 and the connecting plate 31, the upper end of the shell 42 is fixedly connected to the outer wall of the output end 21, the lower end of the shell 42 is rotatably connected to the top of the connecting plate 31, the top of the connecting plate 31 is integrally connected with a protrusion 311, the connecting plate 31 is connected to the flange 22 through the protrusion 311, the outer wall of the protrusion 311 is fixedly connected with a first baffle 312, the end of the first baffle 312 is in contact with the inner wall of the shell 42, the inner wall of the shell 42 is fixedly connected with a second baffle 421, the end of the second baffle 421 is in contact with the outer wall of the protrusion 311 The first air intake valve 43 and the first exhaust valve 44 are fitted together, and the second baffle plate 421 is provided with a first air intake valve 43 and a first exhaust valve 44 on one side, and the second air intake valve 45 and the second exhaust valve 46 on the other side. The first air intake valve 43, the first exhaust valve 44, the second air intake valve 45 and the second exhaust valve 46 are all fixedly connected to the shell 42, and a four-ventilation pipe 47 is provided between the first exhaust valve 44, the second exhaust valve 46 and the two nozzles 41. The first exhaust valve 44, the second exhaust valve 46 and the two nozzles 41 are connected through the four-ventilation pipe 47, and an adjustment component 48 is provided on the laser welding head 32, and the nozzle 41 is arranged at the lower end of the adjustment component 48.

[0052] It should be noted that the first intake valve 43, the first exhaust valve 44, the second intake valve 45 and the second exhaust valve 46 are all one-way valves. The first intake valve 43 and the second intake valve 45 only allow gas to move from the outside to the inside of the shell 42, and the first exhaust valve 44 and the second exhaust valve 46 only allow gas to move from the inside to the outside of the shell 42.

[0053] According to the above structure, when the robot arm 20 drives the welding mechanism 30 to rotate, the output end 21 drives the flange 22 to rotate relative to the output end 21, and the flange 22 drives the protrusion 311 and the connecting plate 31 to rotate. Since the shell 42 is fixedly connected to the flange 22, the connecting plate 31 and the shell 42 rotate relative to each other, and the protrusion 311 drives the first baffle 312 to rotate relative to the second baffle 421. Since the first baffle 312 and the second baffle 421 divide the interior of the shell 42 into two cavities, assuming that the first baffle 312 rotates toward the side close to the first exhaust valve 44, the first baffle 312 is close to the first exhaust valve 44. The cavity between the side close to the first exhaust valve 44 and the second baffle 421 is the first cavity, and the cavity between the side of the first baffle 312 close to the second exhaust valve 46 and the second baffle 421 is the second cavity. When the first baffle 312 rotates toward the side close to the first exhaust valve 44, the gas in the first cavity is squeezed so that the gas is discharged through the first exhaust valve 44. At this time, the space of the second cavity is increased, and the external gas enters the second cavity through the second air inlet valve 45. The gas discharged through the first exhaust valve 44 moves to the two nozzles 41 through the four-ventilation pipe 47 for discharge, so as to facilitate blowing to the welding mechanism 30 and the welding point.

[0054] like Figure 3 , Figure 4 and Figure 6 As shown, the adjustment assembly 48 includes a frame 481 fixedly connected to the outer wall of the laser welding head 32, and slide plates 482 are slidably installed on both sides of the frame 481, and the nozzle 41 is rotatably installed on the lower end of the slide plate 482.

[0055] According to the above structure, after the slide plate 482 slides along the frame 481, the distance between the slide plate 482 and the laser welding head 32 is adjusted to adapt to the cross bar welds with different spacings in the weldment, so that the nozzle 41 can blow air to the adjacent welds of the current weld. After the nozzle 41 rotates along the slide plate 482, the blowing direction of the nozzle 41 is adjusted to facilitate switching between blowing air to the laser welding head 32 and blowing air to the adjacent welds, thereby improving applicability and convenience.

[0056] like Figure 6 As shown, both sides of the frame 481 are integrally connected with sliding arms 483, the slide plate 482 slides with the sliding arms 483, an electric telescopic rod 484 is provided between the slide plate 482 and the frame 481, the electric telescopic rod 484 is fixedly connected to the frame 481, and the output end of the electric telescopic rod 484 is fixedly connected to the electric telescopic rod 484.

[0057] According to the above structure, after the electric telescopic rod 484 works, the output end drives the slide plate 482 to slide along the slide arm 483, so as to facilitate the adjustment of the distance between the nozzle 41 and the laser welding head 32.

[0058] like Figure 4 and Figure 6 As shown, the lower end of the slide plate 482 is fixedly connected to an angle adjustment motor 485 , and the output end of the angle adjustment motor 485 is fixedly connected to a clamping block 486 , which is engaged with the jet head 41 .

[0059] According to the above structure, after the angle adjustment motor 485 works, the output end drives the nozzle 41 to rotate through the clamping block 486, which is convenient for adjusting the blowing angle of the nozzle 41. The clamping block 486 is engaged with the nozzle 41 to facilitate the disassembly and assembly of the nozzle 41.

[0060] like Figure 6 As shown, the end of the sliding arm 483 is detachably connected to the limiting block 487 , and the outer diameter of the limiting block 487 is larger than the outer diameter of the sliding arm 483 .

[0061] It should be noted that the limit block 487 and the slide arm 483 are detachably connected via screws.

[0062] According to the above structure, the limit block 487 is installed on the sliding arm 483 to prevent the slide plate 482 from sliding outward along the sliding arm 483, thereby preventing the slide plate 482 from separating from the sliding arm 483. After the limit block 487 is removed from the sliding arm 483, the slide plate 482 slides outward along the sliding arm 483, making it easy to disassemble the slide plate 482.

[0063] like Figure 1 , Figure 8 and Fig. 9 As shown, the clamping mechanism 50 also includes a movable plate 53 arranged above the workbench 10, the electric slide rail 51 is located below one side of the movable plate 53, the electric slide rail 51 is fixedly connected to the top of the workbench 10, the output end of the electric slide rail 51 is fixedly connected to the bottom of the movable plate 53, the side of the movable plate 53 away from the nozzle 41 is slidably connected to the workbench 10, the internal rotation of the movable plate 53 is connected to a rotating plate 54, the flip motor 52 is arranged at one end of the rotating plate 54, the flip motor 52 is fixedly connected to the movable plate 53, the output end of the flip motor 52 is fixedly connected to the rotating plate 54, and the rotating plate 54 is provided with a vertical clamp 55, a horizontal clamp 56 and a cross bar limit assembly 57 for clamping and fixing the weldment.

[0064] It should be noted that a linear slide rail is provided between the side of the movable plate 53 away from the nozzle 41 and the workbench 10, and the linear slide rail is a prior art. The vertical clamp 55 and the transverse clamp 56 are both prior art. The vertical clamp 55 limits the support arm in the vertical direction, and the transverse clamp 56 limits the support arm and the cross bar in the horizontal direction.

[0065] According to the above structure, the weldment is placed in the clamping mechanism 50, and the vertical clamp 55, the horizontal clamp 56 and the cross bar limit assembly 57 limit the weldment and the rotating plate 54 to clamp and fix the weldment. After the electric slide rail 51 works, the output end drives the movable plate 53 to move along the workbench 10, and the movable plate 53 drives the weldment to move along the workbench 10 through the rotating plate 54, so that the weldment moves relative to the laser welding head 32, which is convenient for switching the cross bar welding points at different positions. After the flip motor 52 works, it drives the rotating plate 54 to rotate, so that the rotating plate 54 drives the weldment to flip, which is convenient for the laser welding head 32 to weld the lower semicircular arc of the welding point.

[0066] like Fig.10 As shown, the crossbar limiting assembly 57 includes a first limiting plate 571 fixedly connected to the movable plate 53, a second limiting plate 572 is provided above the first limiting plate 571, both ends of the second limiting plate 572 are detachably connected to the movable plate 53, and the first limiting plate 571 and the second limiting plate 572 are both in contact with the weldment.

[0067] According to the above structure, the cross bar in the weldment is placed between the first limiting plate 571 and the second limiting plate 572, and the second limiting plate 572 is installed on the movable plate 53, so that the second limiting plate 572 and the first limiting plate 571 limit the cross bar, so as to keep the spacing and position of several cross bars fixed.

[0068] like Fig.10 As shown, a plurality of first limiting grooves 573 are formed on one side of the first limiting plate 571 close to the second limiting plate 572, and a plurality of second limiting grooves 574 are formed on one side of the second limiting plate 572 close to the first limiting plate 571. Both the first limiting grooves 573 and the second limiting grooves 574 fit in with the outer wall of the weldment.

[0069] It should be noted that the cross-sectional shapes of the first limiting groove 573 and the second limiting groove 574 are both arc-shaped.

[0070] According to the above structure, when the cross bar in the weldment is placed between the first limiting plate 571 and the second limiting plate 572, the first limiting groove 573 and the second limiting groove 574 are both in contact with the outer wall of the cross bar, so that the first limiting plate 571 and the second limiting plate 572 can limit the cross bar to clamp and fix the cross bar.

[0071] The working principle of the present invention is as follows: during welding, the weldment is placed in the clamping mechanism 50, and the clamping mechanism 50 clamps and fixes the weldment. During the process of the mechanical arm 20 driving the welding mechanism 30 to rotate, the blowing mechanism 40 and the welding mechanism 30 are also caused to rotate relative to each other, so that the gas in the blowing mechanism 40 is discharged to the welding mechanism 30 or the welding point adjacent to the current welding point through the nozzle 41, and the dust attached to the welding mechanism 30 is blown away. If the adjacent welding point has not been welded, the dust attached to the welding point is blown away. If the adjacent welding point has been welded, the weld of the welding point is cold cut to improve the welding quality and efficiency. After the clamping mechanism 50 works, the electric slide rail 51 drives the weldment to move along the workbench 10, and the flip motor 52 drives the weldment to rotate along the workbench 10, so as to facilitate the flipping of the weldment to weld the lower semicircular arc of the welding point. Compared with the traditional method, the need to disassemble and re-clamp the weldment is avoided, thereby improving the convenience of welding.

[0072] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A laser welding device for a spliced ​​bathroom towel rack, characterized in that: include: Workbench (10); A mechanical arm (20), wherein the mechanical arm (20) is arranged on one side of the workbench (10); A welding mechanism (30), wherein the welding mechanism (30) is arranged at an end of the robot arm (20); an air blowing mechanism (40), the air blowing mechanism (40) being arranged between the robot arm (20) and the welding mechanism (30) and being used for blowing air as the welding mechanism (30) rotates, the air blowing mechanism (40) comprising two air blowing heads (41) respectively located on both sides of the welding mechanism (30); A clamping mechanism (50), the clamping mechanism (50) being arranged on the workbench (10) and used for clamping the weldment, the clamping mechanism (50) comprising an electric slide rail (51) and a turning motor (52); When the mechanical arm (20) drives the welding mechanism (30) to rotate, it also drives the blowing mechanism (40) to operate, so that the nozzle (41) blows air to the welding mechanism (30) or the welding position, and the clamping mechanism (50) clamps the weldment and moves and rotates along the workbench (10) after the operation; An output end (21) is provided at the end of the mechanical arm (20), a flange (22) is rotatably mounted on the end of the output end (21), the welding mechanism (30) comprises a connecting plate (31) fixedly connected to the flange (22), a laser welding head (32) being fixedly connected to the connecting plate (31); The blowing mechanism (40) further comprises a shell (42) arranged between the output end portion (21) and the connecting plate (31); the upper end of the shell (42) is fixedly connected to the outer wall of the output end portion (21); the lower end of the shell (42) is rotatably connected to the top of the connecting plate (31); the top of the connecting plate (31) is integrally connected with a protrusion (311); the connecting plate (31) is connected to the flange (22) via the protrusion (311); the outer wall of the protrusion (311) is fixedly connected with a first baffle (312); the end of the first baffle (312) is in contact with the inner wall of the shell (42); the inner wall of the shell (42) is fixedly connected with a second baffle (421); the end of the second baffle (421) is in contact with the outer wall of the protrusion (311). A first air intake valve (43) and a first exhaust valve (44) are provided on one side of the second baffle (421), and a second air intake valve (45) and a second exhaust valve (46) are provided on the other side of the second baffle (421); the first air intake valve (43), the first exhaust valve (44), the second air intake valve (45) and the second exhaust valve (46) are all fixedly connected to the housing (42); a four-way pipe (47) is provided between the first exhaust valve (44), the second exhaust valve (46) and the two injection heads (41); the first exhaust valve (44), the second exhaust valve (46) and the two injection heads (41) are connected through the four-way pipe (47); an adjustment component (48) is provided on the laser welding head (32), and the injection head (41) is arranged at the lower end of the adjustment component (48).

2. The laser welding device for the spliced ​​bathroom towel rack according to claim 1 is characterized in that: The adjustment assembly (48) comprises a frame (481) fixedly connected to the outer wall of the laser welding head (32), slide plates (482) are slidably mounted on both sides of the frame (481), and the nozzle (41) is rotatably mounted on the lower end of the slide plate (482).

3. The laser welding device for the spliced ​​bathroom towel rack according to claim 2 is characterized in that: Both sides of the frame (481) are integrally connected with sliding arms (483), the slide plate (482) and the slide arm (483) are slidably matched, an electric telescopic rod (484) is provided between the slide plate (482) and the frame (481), the electric telescopic rod (484) is fixedly connected to the frame (481), and the output end of the electric telescopic rod (484) is fixedly connected to the electric telescopic rod (484).

4. The laser welding device for the spliced ​​bathroom towel rack according to claim 3 is characterized in that: The lower end of the slide plate (482) is fixedly connected to an angle adjustment motor (485), and the output end of the angle adjustment motor (485) is fixedly connected to a clamping block (486), and the clamping block (486) is clamped and matched with the spray head (41).

5. The laser welding device for the spliced ​​bathroom towel rack according to claim 4 is characterized in that: The end of the sliding arm (483) is detachably connected to a limiting block (487), and the outer diameter of the limiting block (487) is greater than the outer diameter of the sliding arm (483).

6. The laser welding device for spliced ​​bathroom towel rack according to claim 1, characterized in that: The clamping mechanism (50) also includes a movable plate (53) arranged above the workbench (10), the electric slide rail (51) is located below one side of the movable plate (53), the electric slide rail (51) is fixedly connected to the top of the workbench (10), the output end of the electric slide rail (51) is fixedly connected to the bottom of the movable plate (53), the side of the movable plate (53) away from the nozzle (41) is slidably connected to the workbench (10), the interior of the movable plate (53) is rotatably connected to a rotating plate (54), the flip motor (52) is arranged at one end of the rotating plate (54), the flip motor (52) is fixedly connected to the movable plate (53), the output end of the flip motor (52) is fixedly connected to the rotating plate (54), and the rotating plate (54) is provided with a vertical clamp (55), a horizontal clamp (56) and a cross bar limit assembly (57) for clamping and fixing the weldment.

7. The laser welding device for the spliced ​​bathroom towel rack according to claim 6, characterized in that: The crossbar limiting assembly (57) comprises a first limiting plate (571) fixedly connected to the movable plate (53); a second limiting plate (572) is provided above the first limiting plate (571); both ends of the second limiting plate (572) are detachably connected to the movable plate (53); and the first limiting plate (571) and the second limiting plate (572) are both in contact with the weldment.

8. The laser welding device for the spliced ​​bathroom towel rack according to claim 7, characterized in that: A plurality of first limiting grooves (573) are provided on a side of the first limiting plate (571) close to the second limiting plate (572), and a plurality of second limiting grooves (574) are provided on a side of the second limiting plate (572) close to the first limiting plate (571), and both the first limiting grooves (573) and the second limiting grooves (574) are fitted with the outer wall of the weldment.

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