A laser welding robot for industrial production

Abstract

The application relates to the technical field of laser welding, and discloses a laser welding robot for industrial production, which comprises a welding table, two vertical plates symmetrically arranged on the top of the welding table, an L-shaped plate arranged on the top of the welding table, a telescopic air cylinder arranged on the L-shaped plate, a laser welding head arranged at the output end of the telescopic air cylinder, and a cooling component arranged on one of the vertical plates; the cooling component comprises a cooling assembly arranged on the laser welding head. The laser welding robot for industrial production realizes automatic and synchronous control of tubular workpiece welding through the cooperative operation of a clamping rotating assembly and the laser welding head. The driving wheel drives the clamping ring to rotate at a constant speed through a third belt, and the laser welding head is accurately positioned at a welding height under the driving of the telescopic air cylinder, so that errors and efficiency loss caused by manual adjustment of the workpiece position are avoided. Compared with traditional manual welding or step-by-step welding equipment, the laser welding robot does not need to frequently interrupt the welding process to adjust the workpiece posture.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and more particularly to a laser welding robot for industrial production. Background Technology

[0002] In the industrial manufacturing sector, welding is a core process for joining metal components. Traditional welding technologies, such as arc welding and gas welding, have long faced problems such as high heat input, severe weld deformation, and insufficient precision, making it difficult to meet the precision connection requirements of high-end manufacturing. After the advent of laser technology in the 1960s, laser welding emerged due to its unique advantages of high energy density and low heat-affected zone. It utilizes a focused high-power laser beam to rapidly melt localized areas of the workpiece and form a weld, achieving micron-level precision control. With the automotive, aerospace, and electronics industries moving towards lightweighting and high integration, laser welding is gradually replacing traditional processes, becoming a core technology in key areas such as welding battery tabs for new energy vehicles, connecting aircraft engine blades, and packaging semiconductor chips, driving industrial production towards higher precision, higher efficiency, and greener practices. However, existing laser welding equipment still has the following drawbacks in use:

[0003] Currently, the heat dissipation systems of industrial-grade laser welding equipment generally adopt forced water cooling solutions. The core of this system is to drive cooling water through a circulating water pump, spraying it from the cooling channel integrated into the welding nozzle to achieve thermal management of the welding area. However, in actual operation, this system has significant technical bottlenecks. First, the flow rate control accuracy is insufficient. Existing water pumps are mostly driven by a fixed frequency, lacking a dynamic flow rate adaptive adjustment mechanism based on welding power and workpiece material thermal conductivity. This results in the cooling water spray volume often being oversaturated, causing a double waste of water resources and circulating energy, which does not meet the energy efficiency requirements of green manufacturing. Second, the cooling mechanism for tubular workpieces has low compatibility. For tubular circumferential welding scenarios, the cooling water spray direction needs to be adjusted synchronously with the workpiece rotation. Existing solutions require additional servo-driven spray direction switching mechanisms or the installation of independent signal transmission circuits and PLC control modules. This not only increases the mechanical complexity and manufacturing cost of the equipment but also increases the failure rate during later maintenance, making it difficult to meet the high reliability and low-cost operation requirements of automated production lines. Summary of the Invention

[0004] Given the problems of poor flow control accuracy, fixed-frequency drive of water pumps, lack of dynamic adjustment mechanism for welding power and workpiece thermal conductivity in existing technologies, which leads to oversaturation of cooling water, wasting water and energy; and low compatibility of cooling mechanisms for tubular workpieces, requiring additional switching mechanisms or circuits, increasing cost and failure risk, a laser welding robot for industrial production is proposed.

[0005] This application provides a laser welding robot for industrial production, the purpose of which is to: replace the fixed frequency water pump with an adaptive flow regulation mechanism, dynamically control the cooling water flow rate according to the welding power and workpiece thermal conductivity, and avoid oversaturation and waste; add a direction switching mechanism to adapt to the rotation of tubular workpieces, reduce equipment costs and failure risks, and ensure the efficient and reliable operation of the production line.

[0006] The technical solution of the present invention is as follows: a laser welding robot for industrial production, including a welding table, two vertical plates symmetrically distributed on the top of the welding table, an L-shaped plate on the top of the welding table, a telescopic cylinder on the L-shaped plate, a laser welding head at the output end of the telescopic cylinder, and a cooling component disposed on one of the vertical plates.

[0007] The cooling component includes a cooling assembly mounted on the laser welding head, and the cooling assembly is provided with a buffer assembly, a locking assembly, a rotating assembly, and an adjusting assembly;

[0008] The cooling component is used to cool the welded workpiece;

[0009] The cooling assembly includes two cooling cylinders symmetrically distributed on the laser welding head. A base plate is provided at the bottom of the inner side of the cooling cylinder, and a through hole is provided on the base plate. A connecting rod is also provided inside the cooling cylinder, and a movable plate is provided at the top of the connecting rod. The movable plate is slidably connected to the inner side of the cooling cylinder in a sealed manner. A bottom sealing plate is provided at the bottom of the connecting rod, which can seal the through hole. An annular groove is provided inside the cooling cylinder at the bottom of the movable plate.

[0010] Furthermore, the buffer assembly includes a buffer plate disposed at the top of the inner side of the cooling cylinder, a stop block disposed at the bottom of the buffer plate on the inner side of the cooling cylinder, the buffer plate abutting against the stop block, and a buffer spring disposed between the buffer plate and the moving plate.

[0011] Furthermore, the locking assembly includes a locking rod disposed inside the cooling cylinder, the locking rod being slidably connected to the buffer plate, a locking block being disposed on the locking rod, a locking ring being disposed on the movable plate, and an L-shaped hole being disposed on the locking ring, the locking block being slidably connected to the inside of the L-shaped hole.

[0012] Furthermore, the rotating assembly includes a movable groove disposed on the locking rod, a rotating rod disposed inside the movable groove, a protrusion disposed on the rotating rod, a spiral groove disposed inside the movable groove, the protrusion being slidably connected to the inner side of the spiral groove, and a rotating spring disposed between the rotating rod and the cooling cylinder, the rotating spring being sleeved on the rotating rod.

[0013] Furthermore, the adjustment assembly includes two symmetrically distributed grooves on the base plate, each groove having a slider inside it, a transmission rod between each slider and the bottom sealing plate, and an adjustment plate on each slider.

[0014] Furthermore, the cooling component also includes a conveying assembly disposed on one of the vertical plates, a reciprocating assembly disposed on the top of the conveying assembly, and a driving assembly disposed on the reciprocating assembly;

[0015] The conveying assembly includes conveying cylinders symmetrically distributed on the vertical plate. An inlet pipe is provided at the bottom of the conveying cylinder, and an outlet hose is provided between the conveying cylinder and the corresponding cooling cylinder. Both the inlet pipe and the outlet hose are equipped with one-way valves, and a piston rod is provided inside the conveying cylinder.

[0016] Furthermore, the reciprocating assembly includes a connecting shaft symmetrically distributed on the vertical plate, a rotating wheel on the connecting shaft, a plurality of trapezoidal blocks arranged in a circular array on the rotating wheel, a piston rod slidably connected to the trapezoidal blocks, and a reciprocating spring between the piston rod and the conveying cylinder, the reciprocating spring being sleeved on the piston rod.

[0017] Furthermore, the drive assembly includes a first drive wheel and a second drive wheel respectively mounted on two connecting shafts, a drive motor mounted on the upright plate, a drive shaft mounted on the output shaft of the drive motor, a third drive wheel and a fourth drive wheel mounted on the drive shaft via a one-way bearing, a first belt mounted between the first drive wheel and the third drive wheel, and a second belt mounted between the second drive wheel and the fourth drive wheel.

[0018] Furthermore, it also includes a clamping and rotating assembly, which includes a clamping ring disposed on the upright plate, a drive wheel disposed on the drive shaft, and a third belt disposed between the clamping ring and the drive wheel.

[0019] The beneficial effects of this invention are:

[0020] The automated synchronous control of tubular workpiece welding is achieved through the coordinated operation of the clamping and rotating components and the laser welding head. After the drive motor rotates the drive shaft, the drive wheel drives the clamping ring to rotate at a constant speed via a third belt. Simultaneously, the laser welding head, driven by a telescopic cylinder, precisely positions the welding height, avoiding errors and efficiency losses caused by manual workpiece position adjustments. Compared to traditional manual welding or step-by-step welding equipment, it eliminates the need for frequent interruptions to the welding process to adjust the workpiece posture, enabling continuous circumferential welding of tubular workpieces and significantly shortening the processing cycle. Furthermore, the auxiliary positioning function of the vertical plate further ensures the stability of the workpiece during welding, reducing welding defects caused by workpiece misalignment and improving the finished product qualification rate, making it particularly suitable for standardized processing needs in mass production scenarios.

[0021] Dynamic adjustment of coolant is achieved through the linkage of multiple components, effectively solving the problem of flow control failure in traditional water cooling solutions. When the base plate of the adjustment component moves down, the slider and adjustment plate slide through the transmission rod, changing the size of the through-hole opening in real time according to the workpiece rotation speed. The faster the workpiece rotation speed, the smaller the opening and the faster the coolant flow rate, ensuring that the welding area always receives appropriate cooling intensity and avoiding water waste caused by oversaturation spraying. At the same time, the buffer plate and buffer spring of the buffer component can balance the pressure in the cooling cylinder, preventing equipment expansion damage caused by the instantaneous influx of coolant and extending the service life of components. The automatic locking / unlocking function of the locking component and the rotating component can realize the start and stop control of coolant delivery without manual intervention, reducing energy consumption and error rate in manual operation, and meeting the energy efficiency requirements of green manufacturing.

[0022] Through modular design and multi-component collaboration, it possesses strong scene adaptability, flexibly addressing the welding needs of different types and specifications of workpieces. Regarding the cooling system, the conveying, reciprocating, and driving components form a closed-loop coolant supply mechanism. The piston rod automatically slides back and forth under the action of the trapezoidal block and reciprocating spring, cooperating with a one-way valve to achieve stable coolant intake and delivery, eliminating the need for an additional high-power circulating water pump. The one-way bearing design of the driving component allows the drive motor to drive the corresponding connecting shaft in both forward and reverse directions, eliminating the need for separate drive devices for different directions and reducing equipment manufacturing costs. Furthermore, the integrated installation structure of the cooling component and the laser welding head allows it to move synchronously with the welding head, eliminating the need for additional cooling pipes or adjustments to the cooling mechanism for different welding positions, reducing equipment modification costs when switching between multiple scenarios, and improving the equipment's reusability in various fields such as automotive parts and pipe processing. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the cooling component structure of the present invention;

[0025] Figure 3 This is a cross-sectional view of the cooling assembly of the present invention;

[0026] Figure 4 This is a partial structural diagram of the cooling assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the locking component structure of the present invention;

[0028] Figure 6 This is a partial structural diagram of the locking component of the present invention;

[0029] Figure 7 This is a schematic diagram of the rotating component structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the adjustment component structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the conveying component structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the drive component structure of the present invention.

[0033] In the picture:

[0034] 1. Welding table; 11. Vertical plate; 12. L-shaped plate; 13. Telescopic cylinder; 14. Laser welding head; 2. Cooling assembly; 21. Cooling cylinder; 22. Base plate; 23. Through hole; 24. Connecting rod; 25. Moving plate; 26. Bottom sealing plate; 27. Annular groove; 3. Buffer assembly; 31. Buffer plate; 32. Buffer spring; 4. Locking assembly; 41. Locking rod; 42. Locking block; 43. Locking ring; 44. L-shaped hole; 5. Rotating assembly; 51. Rotating rod; 52. Protrusion; 53. Spiral groove; 54. Rotating spring 6. Spring; 7. Adjusting assembly; 8. Slide groove; 9. Slider; 10. Transmission rod; 11. Adjusting plate; 2. Conveying assembly; 3. Conveying cylinder; 4. Inlet pipe; 5. Outlet hose; 6. Piston rod; 7. Reciprocating assembly; 8. Connecting shaft; 9. Rotating wheel; 10. Trapezoidal block; 11. Reciprocating spring; 9. Drive assembly; 12. Drive motor; 13. Drive shaft; 14. First belt; 15. Second belt; 16. Clamping rotating assembly; 17. Clamping ring; 18. Drive wheel; 19. Third belt. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Example 1, referring to Figures 1-8This is the first embodiment of the present invention, which provides a laser welding robot for industrial production, including a welding table 1. Two upright plates 11 are symmetrically distributed and fixedly connected to the top of the welding table 1. An L-shaped plate 12 is also fixedly connected to the top of the welding table 1. A telescopic cylinder 13 is fixedly connected to the L-shaped plate 12. A laser welding head 14 is fixedly connected to the output end of the telescopic cylinder 13. The robot also includes a cooling component installed on one of the upright plates 11. The cooling component includes a cooling assembly 2 installed on the laser welding head 14. A buffer assembly 3, a locking assembly 4, a rotating assembly 5, and an adjusting assembly 6 are installed on the cooling assembly 2. The cooling component is used to cool the welded workpiece; the cooling assembly 2 includes two cooling cylinders 21 that are symmetrically distributed and fixedly connected to the laser welding head 14. A base plate 22 is fixedly connected to the bottom of the inner side of the cooling cylinder 21. A through hole 23 is opened on the base plate 22. A connecting rod 24 is also slidably connected to the inner side of the cooling cylinder 21. A movable plate 25 is fixedly connected to the top of the connecting rod 24. The movable plate 25 is slidably connected to the inner side of the cooling cylinder 21 in a sealed manner. A bottom sealing plate 26 is fixedly connected to the bottom of the connecting rod 24. The bottom sealing plate 26 can seal the through hole 23. An annular groove 27 is opened on the inner side of the cooling cylinder 21 at the bottom of the movable plate 25.

[0037] Specifically, the workpiece to be welded is first placed on top of the welding table 1. Two symmetrically distributed vertical plates 11 help position the workpiece and prevent it from shifting during welding. Then, the telescopic cylinder 13 fixed on the L-shaped plate 12 is activated, its output pushing the laser welding head 14 vertically until it is adjusted to the appropriate height for welding the workpiece. The laser welding head 14 then releases laser light to perform the welding operation. Simultaneously, a cooling component mounted on one of the vertical plates 11 is activated to cool the welding area. The core of the cooling component is the cooling assembly 2, whose two symmetrically fixed cooling cylinders 21 move synchronously with the laser welding head 14. In the initial state, the bottom sealing plate 26 inside the cooling cylinder 21, under its own weight and the action of the connecting rod 24 and the moving plate 25, seals the through hole 23 on the bottom plate 22, preventing premature leakage of cooling water. When water cooling is required, the drive plate 25 slides within the cooling cylinder 21. The drive plate 25 moves the connecting rod 24 and the bottom sealing plate 26 upwards, opening the through hole 23. Cooling water flows out from the through hole 23, cooling the welding area. If welding a tubular workpiece, as the tubular workpiece rotates, one of the through holes 23 on the cooling cylinder 21 is selectively opened to cool the tubular workpiece. Regardless of whether the tubular workpiece rotates clockwise or counterclockwise, the welding area of ​​the tubular workpiece can be accurately cooled.

[0038] Reference Figure 3The buffer assembly 3 includes a buffer plate 31 that is slidably connected to the top of the inner side of the cooling cylinder 21. A stop block is fixedly connected to the bottom of the buffer plate 31 on the inner side of the cooling cylinder 21. The buffer plate 31 abuts against the stop block. A buffer spring 32 is fixedly connected between the buffer plate 31 and the moving plate 25.

[0039] Specifically, when the through hole 23 on the cooling cylinder 21 is not opened, coolant enters the cooling cylinder 21, causing the buffer plate 31 to rise and stretch the buffer spring 32, allowing coolant to enter the cooling cylinder 21 and preventing the cooling cylinder 21 from expanding and being damaged due to the inflow of coolant. When the through hole 23 on the cooling cylinder 21 is opened, the buffer plate 31 moves downward under the action of the buffer spring 32. The stop block can prevent the buffer plate 31 from moving downward continuously, preventing coolant from entering when the through hole 23 on the cooling cylinder 21 is open, causing the buffer spring 32 to pull the buffer plate 31 downward, thus causing the buffer plate 31 to move downward.

[0040] Reference Figure 5 and Figure 6 The locking assembly 4 includes a locking rod 41 rotatably connected to the inside of the cooling cylinder 21. The locking rod 41 is slidably connected to the buffer plate 31. A locking block 42 is fixedly connected to the locking rod 41. A locking ring 43 is fixedly connected to the moving plate 25. An L-shaped hole 44 is provided on the locking ring 43. The locking block 42 is slidably connected to the inside of the L-shaped hole 44.

[0041] Specifically, the locking lever 41 rotates, causing the locking block 42 to rotate until it reaches the horizontal section of the L-shaped hole 44. The L-shaped hole 44 then limits the locking block 42, and the locking lever 41 also limits the moving plate 25, preventing it from continuously moving downwards and causing the coolant in the cooling cylinder 21 to continuously flow out. The locking lever 41 rotates in the opposite direction, causing the locking block 42 to rotate to the vertical section of the L-shaped hole 44, releasing the limiting effect on the moving plate 25. When coolant enters the cooling cylinder 21, it squeezes the moving plate 25, allowing the coolant to flow out.

[0042] Reference Figure 7 The rotating component 5 includes a movable groove on the locking rod 41, a rotating rod 51 is slidably connected to the inside of the movable groove, a protrusion 52 is fixedly connected to the rotating rod 51, a spiral groove 53 is provided inside the movable groove, the protrusion 52 is slidably connected to the inside of the spiral groove 53, and a rotating spring 54 is fixedly connected between the rotating rod 51 and the cooling cylinder 21, and the rotating spring 54 is sleeved on the rotating rod 51.

[0043] Specifically, when the rotating rod 51 rises, it abuts against the L-shaped plate 12, which presses the rotating rod 51 downwards. When the cooling cylinder 21 rises, the rotating rod 51 is pressed upwards and moves downwards, compressing the rotating spring 54 and causing the protrusion 52 to slide inside the spiral groove 53. Under the action of the spiral groove 53, the locking rod 41 rotates, locking and limiting the moving plate 25. When the cooling cylinder 21 moves downwards, the rotating rod 51 moves downwards, and under the action of the rotating spring 54, it moves upwards, causing the protrusion 52 to slide upwards inside the spiral groove 53. This causes the locking rod 41 to rotate in the opposite direction, releasing the locking and limiting of the moving plate 25.

[0044] Reference Figure 8 The adjustment component 6 includes two symmetrically distributed grooves 61 on the base plate 22. The inner sides of the two grooves 61 are slidably connected to sliders 62. The two sliders 62 are rotatably connected to the bottom sealing plate 26, and the sliders 62 are fixedly connected to the adjustment plate 64.

[0045] Specifically, when the base plate 22 moves downward, the transmission rod 63 causes the two sliders 62 to slide relative to each other, and the two adjusting plates 64 to slide relative to each other. The greater the downward distance of the base plate 22, the smaller the distance between the two adjusting plates 64, resulting in a smaller opening at the bottom of the through hole 23. In other words, the faster the coolant enters the cooling cylinder 21, the greater the downward distance of the base plate 22, the smaller the opening at the bottom of the through hole 23, and the faster the coolant flows out of the cooling cylinder 21. For tubular workpieces, the faster the workpiece rotates, the faster the coolant flows out of the cooling cylinder 21, allowing the coolant to cover the welding area more quickly. The speed of coolant flow is adjusted according to the speed of workpiece rotation.

[0046] Example 2, refer to Figure 9 and Figure 10 This is the second embodiment of the present invention, which differs from the first embodiment in that: the cooling component further includes a conveying assembly 7 installed on one of the vertical plates 11, a reciprocating assembly 8 installed on the top of the conveying assembly 7, and a driving assembly 9 installed on the reciprocating assembly 8; the conveying assembly 7 includes conveying cylinders 71 that are symmetrically distributed and fixedly connected to the vertical plate 11, an inlet pipe 72 fixedly connected to the bottom of the conveying cylinder 71, an outlet hose 73 fixedly connected between the conveying cylinder 71 and the corresponding cooling cylinder 21, a one-way valve fixedly connected to both the inlet pipe 72 and the outlet hose 73, and a piston rod 74 is slidably and sealed inside the conveying cylinder 71.

[0047] Specifically, when the piston rod 74 slides downward, it sends the cooling hydraulic pressure in the delivery cylinder 71 to the outlet hose 73 and into the cooling cylinder 21. When the piston rod 74 slides upward, it draws external coolant into the delivery cylinder 71 from the inlet pipe 72. The piston rod 74 slides up and down, continuously pushing the coolant into the cooling cylinder 21.

[0048] Reference Figure 9 The reciprocating assembly 8 includes a connecting shaft 81 symmetrically distributed and rotatably connected to the vertical plate 11. A rotating wheel 82 is fixedly connected to the connecting shaft 81. Multiple trapezoidal blocks 83 are fixedly connected to the rotating wheel 82 in a circular array. The piston rod 74 is slidably connected to the trapezoidal blocks 83. A reciprocating spring 84 is fixedly connected between the piston rod 74 and the conveying cylinder 71. The reciprocating spring 84 is sleeved on the piston rod 74.

[0049] Specifically, the connecting shaft 81 rotates, driving the rotating wheel 82 to rotate, causing multiple trapezoidal blocks 83 to rotate. The trapezoidal blocks 83 are slidably connected to the piston rod 74. Under the action of the trapezoidal blocks 83, the piston rod 74 is pressed downward, compressing the reciprocating spring 84. The rotating wheel 82 continues to rotate, and under the combined action of the multiple trapezoidal blocks 83 and the reciprocating spring 84, the piston rod 74 slides back and forth. The remaining structure is the same as that of Embodiment 1.

[0050] Example 3, referring to Figure 10 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the drive assembly 9 includes a first drive wheel and a second drive wheel that are respectively fixedly connected to two connecting shafts 81. A drive motor 91 is fixedly connected to the upright plate 11. A drive shaft 92 is fixedly connected to the output shaft of the drive motor 91. A third drive wheel and a fourth drive wheel are fixedly connected to the drive shaft 92 through a one-way bearing. A first belt 93 is sleeved between the first drive wheel and the third drive wheel. A second belt 94 is sleeved between the second drive wheel and the fourth drive wheel.

[0051] Specifically, the drive motor 91 rotates, causing the drive shaft 92 to rotate. When the drive motor 91 rotates forward, it drives the third drive wheel to rotate under the action of the one-way bearing. Under the action of the first belt 93, it drives the first drive wheel to rotate, which in turn drives one of the connecting shafts 81 to rotate. When the drive motor 91 rotates in reverse, it drives the fourth drive wheel to rotate under the action of the one-way bearing. Under the action of the second belt 94, it drives the second drive wheel to rotate, which in turn drives the other connecting shaft 81 to rotate. This ensures that regardless of whether the drive motor 91 rotates forward or in reverse, it can drive one of the connecting shafts 81 to rotate.

[0052] Reference Figure 1 and Figure 2It also includes a clamping and rotating assembly 10, which includes a clamping ring 101 rotatably connected to the upright plate 11, a drive wheel 102 fixedly connected to the drive shaft 92, and a third belt 103 sleeved between the clamping ring 101 and the drive wheel 102.

[0053] Specifically, the two tubular workpieces to be welded are inserted into the two clamping rings 101 respectively, and the two tubular parts are spliced ​​together. The drive wheel 102 rotates, and under the action of the third belt 103, it drives the clamping rings 101 to rotate, thereby rotating the tubular parts for welding. The rest of the structure is the same as that in Example 2.

[0054] Based on embodiments 1-3, the working principle of this invention is as follows: First, the workpiece to be welded (especially a tubular workpiece) is placed on top of the welding table 1. Two sections of the tubular workpiece are inserted into the two clamping rings 101 of the clamping and rotating assembly 10 and spliced ​​together. The upright plate 11 assists in positioning and prevents displacement. Then, the telescopic cylinder 13 on the L-shaped plate 12 is activated, pushing the laser welding head 14 vertically to the appropriate height. The laser welding head 14 releases laser light to begin welding. At the same time, the drive motor 91 of the clamping and rotating assembly 10 drives the drive shaft 92 to rotate. The drive wheel 102 drives the clamping rings 101 to rotate through the third belt 103, realizing synchronous rotation welding of the tubular workpiece. The cooling cylinder 21 of the cooling assembly 2 moves with the laser welding head 14, and the initial bottom sealing plate 26 seals the through hole 23. When cooling is required, the bottom sealing plate 26 of the adjusting component 6 moves down, and the slider 62 slides via the transmission rod 63. The adjusting plate 64 changes the opening size of the through hole 23 to control the flow rate of the coolant (the faster the workpiece rotates, the smaller the opening and the faster the flow rate). The buffer plate 31 of the buffer component 3 enters the tension buffer spring 32 with the coolant to prevent the cooling cylinder 21 from expanding. When the through hole 23 opens, the buffer spring 32 pulls the buffer plate 31 down. The locking rod 41 of the locking component 4 rotates, causing the locking block 42 to slide in the L-shaped hole 44, thereby locking and unlocking the moving plate 25. The rotating rod 51 of the rotating component 5 moves up and down with the cooling cylinder 21 and abuts against the L-shaped plate 12. It slides on the spiral groove 53 through the protrusion 52, driving the locking rod 41 to rotate and automatically switching the locking state. The piston rod 74 of the conveying component 7 slides back and forth under the action of the connecting shaft 81, rotating wheel 82, trapezoidal block 83 and reciprocating spring 84 of the reciprocating component 8, drawing coolant from the inlet pipe 72 and sending it into the cooling cylinder 21 through the outlet hose 73; when the drive motor 91 of the drive component 9 rotates forward and backward, it drives the third or fourth drive wheel through the one-way bearing, and drives the corresponding connecting shaft 81 to rotate through the belt, ensuring stable delivery of coolant, adapting to the welding requirements of different workpieces throughout the process, and achieving precise cooling and efficient welding.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A laser welding robot for industrial production, comprising a welding table (1), two upright plates (11) symmetrically arranged on the top of the welding table (1), an L-shaped plate (12) also arranged on the top of the welding table (1), a telescopic cylinder (13) arranged on the L-shaped plate (12), and a laser welding head (14) arranged at the output end of the telescopic cylinder (13), characterized in that: It also includes a cooling component mounted on one of the vertical plates (11); The cooling component includes a cooling assembly (2) disposed on the laser welding head (14), and the cooling assembly (2) is provided with a buffer assembly (3), a locking assembly (4), a rotating assembly (5) and an adjusting assembly (6). The cooling component is used to cool the welded workpiece; The cooling assembly (2) includes two cooling cylinders (21) symmetrically distributed on the laser welding head (14). A bottom plate (22) is provided at the bottom of the inner side of the cooling cylinder (21), and a through hole (23) is provided on the bottom plate (22). A connecting rod (24) is also provided inside the cooling cylinder (21). A movable plate (25) is provided at the top of the connecting rod (24). The movable plate (25) is slidably connected to the inner side of the cooling cylinder (21). A bottom sealing plate (26) is provided at the bottom of the connecting rod (24). The bottom sealing plate (26) can seal the through hole (23). An annular groove (27) is provided inside the cooling cylinder (21) at the bottom of the movable plate (25). The buffer assembly (3) includes a buffer plate (31) disposed on the top of the inner side of the cooling cylinder (21), a stop block is disposed on the inner side of the cooling cylinder (21) at the bottom of the buffer plate (31), the buffer plate (31) abuts against the stop block, and a buffer spring (32) is disposed between the buffer plate (31) and the moving plate (25). The locking assembly (4) includes a locking rod (41) disposed inside the cooling cylinder (21), the locking rod (41) being slidably connected to the buffer plate (31), a locking block (42) being disposed on the locking rod (41), a locking ring (43) being disposed on the moving plate (25), an L-shaped hole (44) being disposed on the locking ring (43), and the locking block (42) being slidably connected to the inside of the L-shaped hole (44). The rotating assembly (5) includes a movable groove on the locking rod (41), a rotating rod (51) is provided inside the movable groove, a protrusion (52) is provided on the rotating rod (51), a spiral groove (53) is provided inside the movable groove, the protrusion (52) is slidably connected to the inner side of the spiral groove (53), and a rotating spring (54) is provided between the rotating rod (51) and the cooling cylinder (21), and the rotating spring (54) is sleeved on the rotating rod (51); The adjustment component (6) includes two slide grooves (61) symmetrically distributed on the base plate (22), and a slider (62) is provided on the inner side of each slide groove (61). A transmission rod (63) is provided between each slider (62) and the bottom sealing plate (26), and an adjustment plate (64) is provided on the slider (62).

2. The laser welding robot for industrial production according to claim 1, characterized in that: The cooling component also includes a conveying assembly (7) disposed on one of the vertical plates (11), a reciprocating assembly (8) disposed on the top of the conveying assembly (7), and a driving assembly (9) disposed on the reciprocating assembly (8). The conveying assembly (7) includes conveying cylinders (71) symmetrically distributed on the vertical plate (11). The bottom of the conveying cylinder (71) is provided with an inlet pipe (72). An outlet hose (73) is provided between the conveying cylinder (71) and the corresponding cooling cylinder (21). A one-way valve is provided on both the inlet pipe (72) and the outlet hose (73). A piston rod (74) is provided on the inner side of the conveying cylinder (71).

3. The laser welding robot for industrial production according to claim 2, characterized in that: The reciprocating assembly (8) includes a connecting shaft (81) symmetrically distributed on the vertical plate (11), a rotating wheel (82) on the connecting shaft (81), a plurality of trapezoidal blocks (83) arranged in a ring array on the rotating wheel (82), a piston rod (74) slidably connected to the trapezoidal blocks (83), and a reciprocating spring (84) between the piston rod (74) and the conveying cylinder (71), the reciprocating spring (84) being sleeved on the piston rod (74).

4. The laser welding robot for industrial production according to claim 3, characterized in that: The drive assembly (9) includes a first drive wheel and a second drive wheel respectively mounted on two connecting shafts (81). A drive motor (91) is mounted on the upright plate (11). A drive shaft (92) is mounted on the output shaft of the drive motor (91). A third drive wheel and a fourth drive wheel are mounted on the drive shaft (92) via a one-way bearing. A first belt (93) is mounted between the first drive wheel and the third drive wheel. A second belt (94) is mounted between the second drive wheel and the fourth drive wheel.

5. The laser welding robot for industrial production according to claim 4, characterized in that: It also includes a clamping and rotating assembly (10), which includes a clamping ring (101) disposed on the upright plate (11), a drive wheel (102) disposed on the drive shaft (92), and a third belt (103) disposed between the clamping ring (101) and the drive wheel (102).

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