A laser welding process for processing and plugging the pipe end of a towel rack

Abstract

The application discloses a laser welding process for processing and plugging a pipe end of a towel rack, relates to the field of towel rack pipe processing, and comprises a first base, a second base and a third base, a feeding mechanism, a punching and flanging mechanism, a third feeding mechanical gripper, a plugging seat conveying mechanism and a plugging seat assembling mechanism are arranged above the first base, a pipe fitting transmission mechanism is arranged above the second base, and the process comprises the following steps: towel rack pipe feeding, pre-placing a pipe to be processed in a storage plate, respectively placing the pipe to be processed on a supporting plate, and placing the pipe to be processed in a first profiling groove in the end face of a pre-assembly fixed clamping plate. In the application, the related operation actions of pipe end processing, plugging seat assembling and laser welding machine are completed, the cycle is about 130-150 seconds, after the repeated and continuous operation of each station, the cycle of each process of pipe end processing, plugging seat assembling and welding of one pipe is 15-20 seconds, and the production efficiency is improved by more than 60% compared with the traditional processing process.

Description

Technical Field

[0001] This invention relates to a fully automated pipe end processing, sealing, and welding integrated processing technology, and relates to the field of pipeline welding technology. Background Technology

[0002] Currently, there are more and more household products made of metal tubing, and their market share is increasing year by year. Especially in the manufacturing process of tiered drying racks, in order to ensure that the inner cavities of each tube of the drying rack are interconnected, holes of corresponding specifications, flanged bosses, and heightening and shaping are required at the ends of various tubes. After processing, the ends of the two tubes need to be sealed by welding with corresponding plugs.

[0003] However, in the current technology, similar pipe end punching and flanging are traditionally performed by manual stamping, pipe plugs are assembled manually, and welding is usually done by gas shielded welding or manual welding. The current process has a high turnover rate and a large footprint. After gas shielded welding, the weld marks around the pipe end are higher and the weld is irregular, requiring grinding and polishing. This results in high labor intensity and low production efficiency. In order to reduce labor intensity and improve production efficiency, it is necessary to study a fully automatic pipe end processing and sealing welding integrated processing equipment. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a laser welding process for integrated processing and sealing of towel rack tube ends. This process utilizes PLC program control and the movement of lead screws and cylinders to automatically perform fully automated processing operations such as punching, flanging, plug installation, and laser welding of the tube material in the storage tank. This eliminates the need for traditional manual feeding, punching, flanging, and plug installation, significantly reducing labor intensity, labor costs, and production turnover space. Utilizing a horizontal four-head multi-axis laser welding process, it replaces the traditional gas-shielded welding process for tube end plugs, increasing welding efficiency by more than four times. The weld marks on the tube end face are full and smooth, requiring no additional grinding process. The gas leakage rate is reduced by 20%, and the production cost per tube is reduced by more than 30%. This invention achieves fully automated processing operations from tube end processing and plug installation to laser welding, reducing manual labor intensity, lowering production costs, and improving production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding process for integrated processing and sealing of towel rack tube ends, applied to a laser welding equipment for integrated processing and sealing of towel rack tube ends, used for welding and sealing the ends of towel rack tubes, the laser welding equipment for integrated processing and sealing of towel rack tube ends includes a first base, a second base and a third base, characterized in that a feeding mechanism, a punching and flanging mechanism, a third feeding mechanical gripper, a sealing seat conveying mechanism and a sealing seat assembly mechanism are arranged above the first base, and a tube transmission mechanism is arranged above the second base;

[0006] The laser welding process for integrally sealing the ends of the towel rack tube includes the following steps:

[0007] Towel rack tube feeding: Place the tube to be processed into the feeding mechanism, which will then transport the tube to the punching and flanging mechanism.

[0008] Stamping: The punching and flanging mechanism receives the tube to be processed from the feeding mechanism, fixes the tube to be processed, and then punches and forms it.

[0009] Secondary feeding of towel rack tubes: After the tubes to be processed by the punching and flanging mechanism are processed by the feeding mechanism, the tubes to be processed are then transported to the plug assembly mechanism, so that the tubes to be processed are in the assembly state.

[0010] Towel rack tubes are fed three times: the tube transmission mechanism then raises and lowers the tube to be processed; once the tube to be processed is in place, welding begins along the end face of the tube to be processed.

[0011] Welding of the plug and towel rack tube and material collection: After the laser welding of the end of the tube to be processed and the plug is completed, the tube to be processed is collected.

[0012] Preferably, the feeding mechanism includes a storage plate, which is fixedly connected to the top of a first base. A storage fixing plate is fixedly connected to the bottom of the storage plate. A pushing cylinder is fixedly connected to the outside of the first base. A pushing plate is fixedly connected to the output end of the pushing cylinder. A storage top cylinder is fixedly connected to the top of the first base. A support plate is fixedly connected to the output end of the storage top cylinder. The support plate is located at the bottom of the storage plate. A pre-installed fixing plate is fixedly connected to the top of the first base. A first feeding servo motor is fixedly connected to the bottom of the pre-installed fixing plate. A slot plate is fixedly connected to the outside of the pre-installed fixing plate. A first feeding ejection cylinder is fixedly connected to the top of the first base. A fourth feeding mechanical gripper is slidably connected to the top of the second base.

[0013] The specific steps for feeding towel rack tubes include:

[0014] S11. The tubes to be processed are pre-placed in the storage plate and placed on the support plate. The top cylinder of the storage plate drives the support plate to lift all the tubes to be processed in the storage tank.

[0015] S12. The pusher cylinder drives the pusher plate to move forward, and moves the tube to be processed horizontally into the contour groove on the end face of the pre-installed fixed plate. The storage top cylinder retracts simultaneously and pushes the tube to be processed in the groove upward.

[0016] S13. The No. 1 feeding servo motor drives the feeding slot plate and the processing tube to move forward. When it reaches the top of the next contouring groove in the pre-installed fixed plate, it stops moving. The No. 1 feeding ejector cylinder retracts and places the tube to be processed into the contouring groove of the pre-installed fixed plate. The No. 1 feeding servo motor drives the feeding slot plate back to the starting position.

[0017] Preferably, a robotic arm truss is fixedly connected to both sides of the third base. A first feeding mechanical gripper is slidably connected to the top of the robotic arm truss. A first servo motor is fixedly connected to the top of the first feeding mechanical gripper. A second feeding mechanical gripper is slidably connected to the top of the robotic arm truss. A second servo motor is fixedly connected to the top of the second feeding mechanical gripper. A welding machine control cabinet is installed below the robotic arm truss. The bottom of the welding machine control cabinet is in contact with the ground. A laser welding frame is fixedly connected to the bottom of the robotic arm truss. A rotating chuck assembly is rotatably connected to the top of the laser welding frame. A lifting and supporting material mechanism is installed inside the laser welding frame. An automatic receiving mechanism is fixedly connected to the bottom of the side of the robotic arm truss away from the first feeding mechanical gripper. A laser head assembly is fixedly connected to the top of the laser welding frame.

[0018] Preferably, the third feeding mechanical gripper includes a guide rail, which is fixedly connected between the first base and the second base. A first lifting cylinder is slidably connected above the guide rail. A first clamping cylinder is fixedly connected above the first lifting cylinder. A contour gripper is fixedly connected to the output end of the first clamping cylinder. A third servo motor is fixedly connected to the outside of the first lifting cylinder. A blocking seat storage vibrating plate is fixedly connected above the second base.

[0019] Preferably, the punching and flanging mechanism includes a pushing cylinder, which is fixedly connected to the top of the first base. A mold core fixing seat is fixedly connected above the first base, and a mold core is fixedly connected to the outside of the mold core fixing seat. A punch forming cylinder is fixedly connected above the first base, and an upper horizontal block is fixedly connected to the output end of the punch forming cylinder. A lower horizontal block is fixedly connected to the top of the first base, and the lower horizontal block is located below the upper horizontal block. A pre-installed spring block is fixedly connected to the top of the first base, and the pre-installed spring block is located below the upper horizontal block.

[0020] The specific steps of stamping include:

[0021] S21. After the sensing probe detects the material in place, the push cylinder is activated to extend the mold core into both ends of the tube to be processed. The punching forming cylinder drives the upper horizontal block to punch downwards and form the mold.

[0022] S22. After the forming cylinder of the punching die drives the upper horizontal block to return to its original position, the pre-installed spring block pushes out the tube to be processed. Then, the push cylinder drives the mold cores at both ends to return to their original positions. The No. 1 feeding ejection cylinder drives the feeding slot plate to lift up and lift the tube to be processed out of the pre-installed fixing plate.

[0023] S23, the No. 1 feeding servo motor drives the feeding slot plate and the processing tube to move forward. When working continuously, the feeding slot plate can move multiple tubes to be processed forward at the same time, which can realize automatic feeding and punching processing operations.

[0024] Preferably, the blocking seat assembly mechanism includes a clamping cylinder, which is fixedly connected to the top of the second base. An upper mold clamping block is fixedly connected to the output end of the clamping cylinder. An assembly cylinder is fixedly connected to the top of the second base. A horizontal seat is fixedly connected to the top of the second base. A lower module is fixedly connected to the top of the second base, located below the upper mold clamping block. A pre-installed fixing plate is fixedly connected to the top of the second base. A second feeding ejection cylinder is slidably connected to the bottom of the pre-installed fixing plate. A feeding clamping plate is fixedly connected to the output end of the second feeding ejection cylinder. A second feeding servo motor is fixedly connected to the outside of the feeding clamping plate. A blocking seat storage trough is opened on the top of the second base, located above the horizontal seat. A blocking seat pusher block is fixedly connected to the top of the second base. A blocking seat conveying cylinder is fixedly connected to the top of the second base.

[0025] The specific steps for secondary feeding of towel rack tubes include:

[0026] S31. Start the No. 2 feeding and ejecting cylinder to drive the feeding plate to lift upward and lift the tube to be processed out of the profile groove opened on the pre-installed fixing plate.

[0027] S32, the No. 2 feeding servo motor drives the feeding chuck and processing tube to move forward. When they reach the top of the next contour groove in the pre-installed fixed plate, they stop moving. The No. 2 feeding ejection cylinder drives the feeding chuck to retract.

[0028] S33, the No. 2 feeding servo motor drives the feeding plate back to the starting position, realizing the automatic feeding process of the tube to be processed.

[0029] Preferably, the pipe fitting transmission mechanism includes a contour slot, which is located at the top of the third base.

[0030] Preferably, a start-up sensor is fixedly connected to the top of the third base, a transmission chain is rotatably connected to the top of the third base, a limit sensor is fixedly connected to the top of the third base, and a transmission motor assembly is fixedly connected to the top of the third base.

[0031] The specific steps for the three-stage feeding of the towel rack include:

[0032] S41. The start-up of the drive motor assembly is controlled by the start-up sensing device and the limit sensing device.

[0033] S42. The tube to be processed is moved to the end limit sensing device, the transmission motor assembly stops working, and waits for the first feeding mechanical gripper to pick up the part. The first servo motor drives the first feeding mechanical gripper to move above the tube to be processed, and one of the grippers extends to take out the tube to be processed from the slot at the end of the transmission mechanism.

[0034] S43. If the limit sensing device does not sense a tube to be processed in the end slot, the drive motor assembly restarts.

[0035] S44. The No. 1 servo motor controls the No. 1 feeding mechanical gripper to place the processed tube on the lifting material support mechanism at the same time. The No. 1 servo motor drives the No. 1 feeding mechanical gripper to quickly return to the top of the transmission mechanism, and transport the tube to be processed from the tube transmission mechanism to the lifting material support mechanism.

[0036] Preferably, the blockage conveying mechanism includes a gripper fixing seat, which is fixedly connected to the top of the second base. A sliding rail is fixedly connected to the outside of the gripper fixing seat. A second lifting cylinder is slidably connected to the outside of the sliding rail. A second clamping cylinder is fixedly connected to the output end of the second lifting cylinder. A clamping gripper is fixedly connected to the output end of the second clamping cylinder. A gripper pushing cylinder is fixedly connected to the top of the gripper fixing seat. The output end of the gripper pushing cylinder is fixedly connected to the outside of the second lifting cylinder. A blockage guide groove is provided on the outside of the blockage storage vibrating plate. A device fixing plate is fixedly connected to the top of the second base.

[0037] The specific steps for welding the plug to the towel rack tube and collecting the material include:

[0038] S51. After the sensing device detects that the tube to be processed is in place, the four laser head assemblies and the rotating chuck assembly at both ends of the laser welding frame move towards the middle at the same time, so that the two ends of the tube to be processed are inserted into the tube conforming chuck of the rotating chuck assembly.

[0039] S52. After the rotating chuck assembly fixes the tube to be processed, the laser head assembly quickly moves to the end of the tube to be processed and begins welding along the end face of the tube. The rotating chuck assembly and the laser head can rotate synchronously, which can ensure that the laser head and the tube end maintain an effective welding distance. The four ends of the two tubes to be processed are welded simultaneously.

[0040] S53. After the laser welding of the pipe end plug is completed, the lifting and supporting mechanism extends to lift the welded pipe to be processed, the rotating chuck assembly is released, and the laser head assembly and the rotating chuck assembly move to both sides at the same time until the rotating chuck assembly completely exits both ends of the pipe to be processed. The second servo motor starts, driving the second feeding mechanical gripper to clamp the two pipes to be processed on the lifting and supporting mechanism at the same time, and rise and stabilize onto the receiving tray on the automatic receiving mechanism.

[0041] Compared with the prior art, the beneficial effects of the present invention are:

[0042] 1. In this invention, the cycle of completing the related operations such as pipe end processing, plug installation, and laser welding is about 130-150 seconds. After each station is repeated continuously, the cycle of completing the processes of pipe end processing, plug installation, and welding of a single pipe is 15-20 seconds. The production efficiency is increased by more than 60% compared with the traditional processing technology.

[0043] 2. In this invention, multi-head multi-axis laser welding technology is used, which reduces the welding leakage rate by 15%, produces uniform and full weld marks, improves the defects such as weld mark accumulation in the original gas shielded welding, saves the end face grinding process, and reduces the processing cost per piece by more than 30%.

[0044] 3. In this invention, the laser welding machine adopts a four-head, six-axis automatic welding method, which improves production efficiency by more than four times compared with traditional gas shielded welding.

[0045] 4. It can achieve fully automated production, and one person can operate more than two machines. Compared with the traditional process, the same process requires more than three people to operate, and the labor cost can be reduced by more than 80%.

[0046] 5. It can realize automatic feeding, forming and placement operations, greatly reducing labor intensity; the whole equipment occupies an area of ​​about 10 square meters, which can reduce the footprint and turnover area by more than 50% compared with traditional process equipment. Attached Figure Description

[0047] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0048] Figure 2 This is a side view of the present invention;

[0049] Figure 3 This is a top view of the present invention;

[0050] Figure 4 This is a cross-sectional view of the feeding and end-face processing mechanism of the present invention;

[0051] Figure 5 This is a cross-sectional view of the punching and flanging mechanism of the device according to the present invention;

[0052] Figure 6 This is a schematic diagram of the pipe end plug feeding and assembly mechanism of the present invention;

[0053] Figure 7 for Figure 6 A magnified structural diagram of region A in the middle.

[0054] In the diagram: 1. Feeding mechanism; 101. Storage plate; 102. Storage fixing plate; 103. Pushing plate; 104. Pushing cylinder; 105. Support plate; 106. Storage top cylinder; 107. Pre-installed fixing plate; 108. Feeding servo motor No. 1; 109. Slot plate; 110. Feeding ejection cylinder No. 1;

[0055] 10. Feeding mechanical gripper No. 1; 11. Servo motor No. 1; 1111. Base No. 1; 1112. Base No. 2; 1113. Base No. 3; 12. Feeding mechanical gripper No. 2; 13. Servo motor No. 2; 14. Welding machine control cabinet; 15. Laser welding frame; 151. Laser head assembly; 152. Rotating chuck assembly; 153. Lifting and supporting mechanism; 16. Automatic receiving mechanism;

[0056] 2. Punching and flanging mechanism; 201. Push cylinder; 202. Die core fixing seat; 203. Die core; 204. Punching die forming cylinder; 205. Upper horizontal block; 206. Lower horizontal block; 207. Pre-installed spring block;

[0057] 3. No. 3 feeding mechanical gripper; 301. No. 1 lifting cylinder; 302. Copying gripper; 303. No. 1 clamping cylinder; 304. No. 3 servo motor; 305. Guide rail;

[0058] 4. Vibratory storage plate for blocked seats;

[0059] 5. Blocking seat conveying mechanism; 501. No. 2 lifting cylinder; 502. No. 2 clamping cylinder; 503. Clamping gripper; 504. Sliding rail; 505. Gripper fixing seat; 506. Gripper pushing cylinder; 507. Blocking seat guide groove; 508. Device fixing plate;

[0060] 6. Blocking seat assembly mechanism; 601. Clamping cylinder; 602. Upper mold clamping block; 603. Assembly cylinder; 604. Horizontal seat; 605. Lower module; 606. Pre-installed fixing plate; 607. Feeding plate; 608. Second feeding servo motor; 609. Second feeding ejection cylinder; 610. Blocking seat storage tank; 611. Blocking seat pushing block; 612. Blocking seat conveying cylinder;

[0061] 7. No. 4 feeding machine gripper;

[0062] 8. Pipe fitting transmission mechanism; 801. Copying slot; 802. Start-up sensor; 803. Transmission chain; 804. Limit sensor; 805. Transmission motor assembly;

[0063] 9. Robotic arm gantry. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] Example 1

[0066] Reference Figures 1 to 7 As shown: A laser welding process for integrated processing and sealing of towel rack tube ends is applied to a laser welding equipment for integrated processing and sealing of towel rack tube ends. The laser welding equipment for integrated processing and sealing of towel rack tube ends includes a first base 1111, a second base 1112, and a third base 1113. A feeding mechanism 1, a punching and flanging mechanism 2, a third feeding mechanical gripper 3, a plug conveying mechanism 5, and a plug assembly mechanism 6 are arranged above the first base 1111. A pipe transmission mechanism 8 is arranged above the second base 1112.

[0067] The laser welding process for integrated processing and sealing of towel rack tube ends includes the following steps:

[0068] Towel rack tube feeding: Place the tube to be processed into the feeding mechanism 1, and the feeding mechanism 1 will transport the tube to be processed to the punching and flanging mechanism 2.

[0069] Stamping: The punching and flanging mechanism 2 receives the tube to be processed from the feeding mechanism 1, fixes the tube to be processed, and then punches and forms it.

[0070] Secondary feeding of towel rack tubes: The feeding mechanism 1 feeds the tubes to be processed through the punching and flanging mechanism 2 and then transports them to the plug assembly mechanism 6, so that the tubes to be processed are in the assembly state.

[0071] Towel rack tubes are fed three times: then the tube transmission mechanism 8 will lift the tube to be processed; when the tube to be processed is sensed to be in place, the end of the tube to be processed will be welded along the end face of the tube to be processed.

[0072] The feeding mechanism 1 includes a storage plate 101, which is fixedly connected to the top of a first base 1111. A storage fixing plate 102 is fixedly connected to the bottom of the storage plate 101. A pushing cylinder 104 is fixedly connected to the outside of the first base 1111. A pushing plate 103 is fixedly connected to the output end of the pushing cylinder 104. A storage top cylinder 106 is fixedly connected to the top of the first base 1111. A material support plate is fixedly connected to the output end of the storage top cylinder 106. 105, the material support plate 105 is located at the bottom of the storage plate 101. A pre-installed fixing plate 107 is fixedly connected above the first base 1111. A first feeding servo motor 108 is fixedly connected below the pre-installed fixing plate 107. A slot plate 109 is fixedly connected to the outside of the pre-installed fixing plate 107. A first feeding ejection cylinder 110 is fixedly connected above the first base 1111. A fourth feeding mechanical gripper 7 is slidably connected above the second base 1112.

[0073] The specific steps for feeding towel rack tubes include:

[0074] S11. The tubes to be processed are pre-placed in the storage plate 101 and placed on the support plate 105 respectively. The top cylinder 106 of the storage plate drives the support plate 105 to lift all the tubes to be processed in the storage tank.

[0075] S12, the pushing cylinder 104 drives the pushing plate 103 to move forward, and moves the tube to be processed into the contour groove on the end face of the pre-installed fixed plate 107. Simultaneously, the retracting top storage cylinder 106 pushes the tube to be processed in the groove upward.

[0076] S13. The first feeding servo motor 108 drives the feeding slot plate 109 and the processing tube to move forward. When they reach the top of the next contouring groove in the pre-installed fixed plate 107, they stop moving. The first feeding ejection cylinder 110 retracts and places the tube to be processed in the contouring groove of the pre-installed fixed plate 107. The first feeding servo motor 108 drives the feeding slot plate 109 back to the starting position.

[0077] Both sides of the No. 3 base 1113 are fixedly connected to robotic arm trusses 9. A No. 1 feeding mechanical gripper 10 is slidably connected above the No. 1 feeding mechanical gripper 10. A No. 1 servo motor 11 is fixedly connected above the No. 1 feeding mechanical gripper 10. A No. 2 feeding mechanical gripper 12 is slidably connected above the No. 2 feeding mechanical gripper 12. A No. 2 servo motor 13 is fixedly connected above the No. 2 feeding mechanical gripper 12. A welding machine control cabinet 14 is located below the robotic arm truss 9, with its bottom end in contact with the ground. A laser welding machine frame 15 is fixedly connected to the bottom end of the robotic arm truss 9. A rotating chuck assembly 152 is rotatably connected to the top of the laser welding machine frame 15. A lifting and supporting material mechanism 153 is installed inside the laser welding machine frame 15. The robotic arm truss 9 is far... An automatic receiving mechanism 16 is fixedly connected to the lower side of the first feeding mechanical gripper 10. A laser head assembly 151 is fixedly connected to the upper side of the laser welding frame 15. The third feeding mechanical gripper 3 includes a guide rail 305, which is fixedly connected between the first base 1111 and the second base 1112. A first lifting cylinder 301 is slidably connected above the guide rail 305. A first clamping cylinder 303 is fixedly connected above the first lifting cylinder 301. A contour gripper 302 is fixedly connected to the output end of the first clamping cylinder 303. A third servo motor 304 is fixedly connected to the outside of the first lifting cylinder 301. A blocking seat storage vibrating plate 4 is fixedly connected to the upper side of the second base 1112.

[0078] In this embodiment, the tubes to be processed are pre-placed in the storage plate 101 and placed on the support plate 105. The storage top cylinder 106 drives the support plate 105 to lift all the tubes to be processed in the storage tank, leaving space for the tubes to move at the bottom. After the operation program is started, one set of storage top cylinders 106 retracts and moves the tubes to be processed in the slot to the storage fixing plate 102. The push cylinder 104 drives the push plate 103 to move forward and moves the tubes to be processed horizontally into the contour groove on the end face of the pre-installed fixing plate 107. The storage top cylinder 106 retracts synchronously and lifts the tubes to be processed in the slot upward, so that the push plate 103 can return to its original position.

[0079] When the tube to be processed is placed in the first contouring groove on the end face of the pre-installed fixed clamping plate 107, after the sensing probe detects that the material is in place, the first feeding ejector cylinder 110 is started to work, driving the feeding clamping plate 109 to lift upwards and lift the tube to be processed out of the contouring groove of the pre-installed fixed clamping plate 107. The first feeding servo motor 108 drives the feeding clamping plate 109 and the tube to be processed to move forward. When they reach the top of the next contouring groove in the pre-installed fixed clamping plate 107, they stop moving. The first feeding ejector cylinder 110 retracts and places the tube to be processed in the contouring groove of the pre-installed fixed clamping plate 107. The first feeding servo motor 108 drives the feeding clamping plate 109 back to the starting position. The above actions are repeated to realize the automatic feeding process of the tube to be processed from the storage tank to the contouring clamping groove 801 of the pre-installed fixed clamping plate 107.

[0080] When the tube to be processed is fed into the contour slot 801 on the pre-installed fixed plate 107, the sensing probe detects that the material is in place. Then, the third servo motor 304 of the third feeding mechanical gripper 3 starts, moving the third feeding mechanical gripper 3 directly below the slot. The first lifting cylinder 301 extends, raising the contour gripper 302 to the tube to be processed. The first clamping cylinder 303 retracts, causing the contour gripper 302 to clamp the tube. The third servo motor 304 then starts, feeding the tube to be processed onto the contour slot of the pre-installed fixed plate 606. The lifting and supporting mechanism 153 has a sensing device at its bottom. When the tube is detected to be in place, the four laser head assemblies 151 and the rotating chuck assembly 15 at both ends of the laser welding frame 15 activate. 2. Simultaneously move towards the center, extending both ends of the tube to be processed into the tube-shaped chuck of the rotating chuck assembly 152. The synchronous lifting and lowering material support mechanism 153 retracts into the laser welding frame 15. A limiting device is provided at one end of the rotating chuck assembly 152 to ensure that the tube to be processed can be automatically centered when the laser head assembly 151 and the rotating chuck assembly 152 move towards the center. After the rotating chuck assembly 152 fixes the tube to be processed, the laser head assembly 151 quickly moves to the end of the tube to be processed and begins welding along the end face of the tube. The rotating chuck assembly 152 and the laser head assembly 151 can rotate synchronously to ensure that the laser head and the tube end maintain an effective welding distance. The four ends of the two tubes to be processed are welded simultaneously.

[0081] After the laser welding of the pipe end plug is completed, the lifting and supporting mechanism 153 extends to lift the welded pipe to be processed, the rotating chuck is released, and the laser head assembly 151 and the rotating chuck assembly 152 move to both sides at the same time until the rotating chuck assembly 152 completely exits from both ends of the pipe to be processed. The second servo motor 13 starts, driving the second feeding mechanical gripper 12 to clamp the two pipes to be processed on the lifting and supporting mechanism 153 at the same time, and raise and stabilize them onto the receiving tray on the automatic receiving mechanism 16.

[0082] Example 2

[0083] Reference Figures 1 to 7As shown, the punching and flanging mechanism 2 includes a pushing cylinder 201, which is fixedly connected to the top of the first base 1111. A mold core fixing seat 202 is fixedly connected above the first base 1111. A mold core 203 is fixedly connected to the outside of the mold core fixing seat 202. A punch forming cylinder 204 is fixedly connected above the first base 1111. An upper horizontal block 205 is fixedly connected to the output end of the punch forming cylinder 204. A lower horizontal block 206 is fixedly connected to the top of the first base 1111. The lower horizontal block 206 is located below the upper horizontal block 205. A pre-installed spring block 207 is fixedly connected to the top of the first base 1111. The pre-installed spring block 207 is located below the upper horizontal block 205.

[0084] The specific steps of stamping include:

[0085] S21. After the sensing probe detects the material in place, the push cylinder 201 is activated to extend the mold core 203 into both ends of the tube to be processed, and the punching forming cylinder 204 drives the upper horizontal block 205 to punch and form downwards.

[0086] S22. After the forming cylinder 204 drives the upper horizontal block 205 back to its original position, the pre-installed spring block 207 pushes out the tube to be processed. Then, the cylinder 201 drives the mold cores 203 at both ends to return to their original positions. The first feeding ejection cylinder 110 drives the feeding slot plate 109 to be pushed upward, lifting the tube to be processed out of the pre-installed fixing plate 107.

[0087] S23. The No. 1 feeding servo motor 108 drives the feeding slot plate 109 and the processing tube to move forward. When working continuously, the feeding slot plate 109 can move multiple tubes to be processed forward at the same time, which can realize automatic feeding and punching processing operations.

[0088] The blocking assembly mechanism 6 includes a clamping cylinder 601, which is fixedly connected to the top of the second base 1112. An upper mold clamping block 602 is fixedly connected to the output end of the clamping cylinder 601. An assembly cylinder 603 is fixedly connected to the top of the second base 1112. A horizontal seat 604 is fixedly connected to the top of the second base 1112. A lower module 605 is fixedly connected to the top of the second base 1112, located below the upper mold clamping block 602. A pre-installed fixing plate 60 is fixedly connected to the top of the second base 1112. 6. A second feeding ejector cylinder 609 is slidably connected below the pre-installed fixed plate 606. A feeding clamp plate 607 is fixedly connected to the output end of the second feeding ejector cylinder 609. A second feeding servo motor 608 is fixedly connected to the outside of the feeding clamp plate 607. A blockage storage trough 610 is opened above the second base 1112. The blockage storage trough 610 is located above the horizontal seat 604. A blockage pusher block 611 is fixedly connected above the second base 1112. A blockage conveying cylinder 612 is fixedly connected above the second base 1112.

[0089] The specific steps for secondary feeding of towel rack tubes include:

[0090] S31. Start the No. 2 feeding and ejecting cylinder 609 to drive the feeding plate 607 to lift upwards, and lift the tube to be processed out of the contour groove opened in the pre-installed fixing plate 606.

[0091] S32, the second feeding servo motor 608 drives the feeding plate 607 and the processing tube to move forward. When they reach the top of the next contour groove in the pre-installed fixed plate 606, they stop moving. The second feeding ejection cylinder 609 drives the feeding plate 607 to retract.

[0092] S33, the second feeding servo motor 608 drives the feeding plate 607 back to the starting position, realizing the automatic feeding process of the tube to be processed;

[0093] The pipe fitting transmission mechanism 8 includes a contour slot 801, which is located at the top of the third base 1113. A start-up sensor 802 is fixedly connected to the top of the third base 1113. A transmission chain 803 is rotatably connected to the top of the third base 1113. A limit sensor 804 is fixedly connected to the top of the third base 1113. A transmission motor assembly 805 is fixedly connected to the top of the third base 1113.

[0094] The specific steps for the three-stage feeding of the towel rack include:

[0095] S41. The start-up of the drive motor assembly 805 is controlled by starting the start-up sensor 802 and the limit sensor 804;

[0096] S42. The tube to be processed is moved to the end limit sensor 804, the transmission motor assembly 805 stops working, and waits for the first feeding mechanical gripper 10 to pick up the part. The first servo motor 11 drives the first feeding mechanical gripper 10 to move above the tube to be processed, and one of the grippers extends to take out the tube to be processed from the end slot of the transmission mechanism.

[0097] S43. If the limit sensor 804 does not detect a tube to be processed in the end slot, the drive motor assembly 805 will restart.

[0098] S44. The No. 1 servo motor 11 controls the No. 1 feeding mechanical gripper 10 to place the processed tube on the lifting material support mechanism 153 at the same time. The No. 1 servo motor 11 drives the No. 1 feeding mechanical gripper 10 to quickly return to the top of the transmission mechanism, and moves the tube to be processed from the slot of the tube transmission mechanism 8 to the lifting material support mechanism 153.

[0099] In this embodiment, the groove that fits against the outer wall of the towel rack tube is called the contour groove. When both ends of the tube to be processed are placed on the pre-installed spring block 207, after the sensing probe senses the material in place, the push cylinder 201 is activated to extend the mold core 203 into both ends of the tube to be processed. The punching forming cylinder 204 drives the upper horizontal block 205 to punch and form downwards. After the punching forming cylinder 204 drives the upper horizontal block 205 to return to its original position, the pre-installed spring block 207 pushes out the tube to be processed. The push cylinder 201 drives the mold cores 203 at both ends to return to their original position. The first feeding ejection cylinder 110 drives the feeding slot plate 109 to lift upwards, lifting the tube to be processed out of the contour groove of the pre-installed fixing plate 107. The first feeding servo motor 108 drives the feeding slot plate 109 and the processed tube to move forward. During continuous operation, the feeding slot plate 109 can... Simultaneously moving multiple tubes to be processed forward enables automatic feeding and punching operations. When the tube to be processed is placed in the contour groove on the end face of the pre-installed fixing plate 606, the sensor probe detects that the tube has reached its position and activates the second feeding ejector cylinder 609 to lift the feeding plate 607 upward, lifting the tube out of the contour groove in the pre-installed fixing plate 606. The second feeding servo motor 608 drives the feeding plate 607 and the tube to be processed forward, stopping when they reach the top of the next contour groove in the pre-installed fixing plate 606. The second feeding ejector cylinder 609 then retracts the feeding plate 607, placing the tube to be processed back into the contour groove of the pre-installed fixing plate 606. The second feeding servo motor 608 then drives the feeding plate 607 back to the starting position, realizing the automatic feeding process of the tube to be processed.

[0100] When the tube to be processed is fed into the contouring groove of the pre-installed fixing plate 606, the bottom sensor probe senses that the tube to be processed is placed in the contouring groove. The control system starts the assembly cylinder 603 in the blocking assembly mechanism 6 and simultaneously squeezes the blocking seat in the mold cavity of the horizontal seat 604 to both ends of the tube to be processed to realize the automatic assembly process. After the assembly cylinder 603 is released, the second feeding ejection cylinder 609 drives the feeding plate 607 to lift upward, lifting the tube to be processed out of the contouring groove of the pre-installed fixing plate 606. The second feeding servo motor 608 drives the feeding plate 607 and the processed tube to move to the next contouring groove of the pre-installed fixing plate 606.

[0101] When the tube to be processed is sent to the contouring groove on the pre-installed fixing plate 606, the lower sensing probe senses that the material is in place. The feeding mechanical gripper 7 moves the feeding mechanical gripper 7 to the bottom of the slot. The lifting cylinder 701 pushes out and raises the contouring gripper 302 to the tube to be processed. The clamping cylinder 703 starts to retract, driving the contouring gripper 302 to clamp the tube to be processed and send the tube to the pipe fitting transmission mechanism 8.

[0102] The pipe fitting transmission mechanism 8 has a start-up sensor 802 and a limit sensor 804 at its front and end points to control the start-up of the transmission motor assembly 805. The start-up sensor 802 is located at the first contouring slot 801 of the pipe fitting transmission mechanism 8. When it senses that the pipe to be processed is inserted into the first contouring slot 801, the pipe transmission motor assembly 805 starts, and the transmission shaft drives the transmission chain 803 to move, moving the pipe to be processed forward one fixed slot position. This action is repeated. When the pipe to be processed is moved to the end limit sensor 804, the transmission motor assembly 805 stops working, waiting for the first feeding mechanical gripper 10 to pick up the part. The first servo motor 11 drives the first feeding mechanical gripper 10 to move above the pipe to be processed, extending one of its grippers to remove the pipe to be processed from the end slot of the transmission mechanism. When the limit sensor 804 does not sense a pipe to be processed in the end slot, the transmission motor assembly 805 restarts. The transmission chain 803 drives the tubes to be processed in the previous slot to move down one slot each. When the limit sensor 804 at the end senses the tubes to be processed, the first servo motor 11 drives the first feeding mechanical gripper 10 to move above the tubes to be processed, and takes out the tubes to be processed placed in the slot at the end of the tube transmission mechanism 8. When the tubes to be processed are taken out, the first servo motor 11 quickly lifts the tubes to be processed and moves them upward. When they reach the set height, the first servo motor 11 starts and moves the two tubes to be processed on the first feeding mechanical gripper 10 to above the laser welding frame 15. The lifting and supporting mechanism 153 extends upward, and the first servo motor 11 controls the first feeding mechanical gripper 10 to place the processed tubes on the lifting and supporting mechanism 153 at the same time. The first servo motor 11 drives the first feeding mechanical gripper 10 to quickly return to the top of the transmission mechanism, and moves the tubes to be processed from the slot in the tube transmission mechanism 8 to the lifting and supporting mechanism 153.

[0103] Example 3

[0104] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 The blockage conveying mechanism 5 includes a gripper fixing seat 505, which is fixedly connected to the top of the second base 1112. A sliding rail 504 is fixedly connected to the outside of the gripper fixing seat 505. A second lifting cylinder 501 is slidably connected to the outside of the sliding rail 504. A second clamping cylinder 502 is fixedly connected to the output end of the second lifting cylinder 501. A clamping gripper 503 is fixedly connected to the output end of the second clamping cylinder 502. A gripper pushing cylinder 506 is fixedly connected to the top of the gripper fixing seat 505. The output end of the gripper pushing cylinder 506 is fixedly connected to the outside of the second lifting cylinder 501. A blockage guide groove 507 is opened on the outside of the blockage storage vibrating plate 4. A device fixing plate 508 is fixedly connected to the top of the second base 1112.

[0105] The specific steps for welding the plug to the towel rack tube and collecting the material include:

[0106] S51. After the sensing device detects that the tube to be processed is in place, the four laser head assemblies 151 and the rotating chuck assembly 152 at both ends of the laser welding frame 15 move towards the middle at the same time, so that the two ends of the tube to be processed are inserted into the tube conforming chuck of the rotating chuck assembly 152.

[0107] S52. After the rotating chuck assembly 152 fixes the tube to be processed, the laser head assembly 151 quickly moves to the end of the tube to be processed and begins welding along the end face of the tube. The rotating chuck assembly 152 and the laser head can rotate synchronously to ensure that the laser head and the tube end maintain an effective welding distance; the four ends of the two tubes to be processed are welded simultaneously.

[0108] S53. After the laser welding of the pipe end plug is completed, the lifting and supporting mechanism 153 extends to lift the welded pipe to be processed, the rotating chuck is released, and the laser head assembly 151 and the rotating chuck assembly 152 move to both sides at the same time until the rotating chuck assembly 152 completely exits from both ends of the pipe to be processed. The second servo motor 13 starts, driving the second feeding mechanical gripper 12 to clamp the two pipes to be processed on the lifting and supporting mechanism 153 at the same time, and rise and stabilize onto the receiving tray on the automatic receiving mechanism 16.

[0109] In this embodiment, the plugs used with the tubes to be processed are simultaneously placed in batches into the feeding plug storage vibratory plate 4. After the feeding plug storage vibratory plate 4 is started, the plugs in the plate are sequentially and in the same direction along the edge of the vibratory plate and fed out into the plug guide groove 507. The front end of the plug guide groove 507 is provided with a notch to facilitate the clamping gripper 503 to clamp the material. The second lifting cylinder 501 extends and drives the clamping gripper 503 to the notch of the plug guide groove 507. After the second clamping cylinder 502 is started, it drives the clamping gripper 503 to clamp the plug. After the seat is clamped, the second lifting cylinder 501 drives the clamping gripper 503 to retract. The gripper pushes the cylinder 506 to push the second lifting cylinder 501 forward to above the storage plate 101. The second lifting cylinder 501 extends and sends the block seat into the storage plate 101. The second clamping cylinder 502 releases, and the block seat falls into the bottom along the block seat storage groove 610. Then, the block seat conveying cylinder 612 pushes the block seat pusher block 611 to send the block seat into the mold cavity of the horizontal seat 604 for assembly, realizing the automatic feeding process of the block seat.

[0110] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser welding process for integrated processing and sealing of towel rack tube ends, applied to a laser welding device for integrated processing and sealing of towel rack tube ends, used for welding and sealing the ends of towel rack tubes, wherein the laser welding device for integrated processing and sealing of towel rack tube ends includes a first base (1111), a second base (1112), and a third base (1113), characterized in that, Above the No. 1 base (1111) is a feeding mechanism (1), a punching and flanging mechanism (2), a No. 3 feeding mechanical gripper (3), a block seat conveying mechanism (5), and a block seat assembly mechanism (6). Above the No. 2 base (1112) is a pipe fitting transmission mechanism (8). The laser welding process for integrally sealing the ends of the towel rack tube includes the following steps: Towel rack tube feeding: Place the tube to be processed into the feeding mechanism (1), and the feeding mechanism (1) will transport the tube to be processed to the punching and flanging mechanism (2); Stamping: The punching and flanging mechanism (2) receives the tube to be processed from the feeding mechanism (1), and the punching and flanging mechanism (2) fixes the tube to be processed and then punches and forms it. Secondary feeding of towel rack tube: The feeding mechanism (1) processes the tube to be processed by the punching and flanging mechanism (2), and then transports the tube to be processed to the plug assembly mechanism (6) so that the tube to be processed is in the assembly state. Three feedings of the towel rack tube: The tube transmission mechanism (8) then lifts and lowers the tube to be processed; when the tube to be processed is sensed to be in place, the end of the tube to be processed is then welded along the end face of the tube to be processed. Welding and collecting of the plug and towel rack tube: After the laser welding of the end of the tube to be processed and the plug is completed, the tube to be processed is collected after welding; both sides of the No. 3 base (1113) are fixedly connected to the manipulator truss (9), the No. 1 feeding mechanical gripper (10) is slidably connected above the manipulator truss (9), the No. 1 servo motor (11) is fixedly connected above the No. 1 feeding mechanical gripper (10), the No. 2 feeding mechanical gripper (12) is slidably connected above the manipulator truss (9), the No. 2 servo motor (13) is fixedly connected above the No. 2 feeding mechanical gripper (12), and the manipulator truss A welding machine control cabinet (14) is provided below the frame (9). The bottom end of the welding machine control cabinet (14) is in contact with the ground. A laser welding machine frame (15) is fixedly connected to the bottom end of the robotic arm truss (9). A rotating chuck assembly (152) is rotatably connected to the top end of the laser welding machine frame (15). A lifting and material-supporting mechanism (153) is provided inside the laser welding machine frame (15). An automatic material-receiving mechanism (16) is fixedly connected to the bottom of the side of the robotic arm truss (9) away from the first feeding mechanical gripper (10). A laser head assembly (151) is fixedly connected to the top of the laser welding machine frame (15). The third feeding mechanical gripper (3) includes a guide rail (305), which is fixedly connected between the first base (1111) and the second base (1112). A first lifting cylinder (301) is slidably connected above the guide rail (305). A first clamping cylinder (303) is fixedly connected above the first lifting cylinder (301). A copying gripper (302) is fixedly connected to the output end of the first clamping cylinder (303). A third servo motor (304) is fixedly connected to the outside of the first lifting cylinder (301). A blocking seat storage vibrating plate (4) is fixedly connected above the second base (1112). The blockage conveying mechanism (5) includes a gripper fixing seat (505), which is fixedly connected to the top of the second base (1112). A sliding rail (504) is fixedly connected to the outside of the gripper fixing seat (505). A second lifting cylinder (501) is slidably connected to the outside of the sliding rail (504). A second clamping cylinder (502) is fixedly connected to the output end of the second lifting cylinder (501). A clamping gripper (503) is fixedly connected to the output end of the second clamping cylinder (502). A gripper pushing cylinder (506) is fixedly connected to the top of the gripper fixing seat (505). The output end of the gripper pushing cylinder (506) is fixedly connected to the outside of the second lifting cylinder (501). A blockage guide groove (507) is opened on the outside of the blockage storage vibrating plate (4). A device fixing plate (508) is fixedly connected to the top of the second base (1112). The specific steps for welding the plug to the towel rack tube and collecting the material include: S51. After the sensing device detects that the tube to be processed is in place, the four laser head assemblies (151) and the rotating chuck assembly (152) at both ends of the laser welding frame (15) move towards the middle at the same time, so that the two ends of the tube to be processed are inserted into the tube fitting chuck of the rotating chuck assembly (152). S52. After the rotating chuck assembly (152) fixes the tube to be processed, the laser head assembly (151) quickly moves to the end of the tube to be processed and begins welding along the end face of the tube. The rotating chuck assembly (152) and the laser head can rotate synchronously, which can ensure that the laser head and the tube end maintain an effective welding distance. The four ends of the two tubes to be processed are welded simultaneously. S53. After the laser welding of the pipe end plug is completed, the lifting and supporting mechanism (153) extends to lift the welded pipe to be processed, the rotating chuck assembly (152) is released, the laser head assembly (151) and the rotating chuck assembly (152) move to both sides at the same time until the rotating chuck assembly (152) completely exits the two ends of the pipe to be processed, the second servo motor (13) starts, and drives the second feeding mechanical gripper (12) to clamp the two pipes to be processed on the lifting and supporting mechanism (153) at the same time, and rise and stabilize onto the receiving tray on the automatic receiving mechanism (16).

2. The laser welding process for integrated processing and sealing of towel rack tube ends according to claim 1, characterized in that: The feeding mechanism (1) includes a storage plate (101), which is fixedly connected to the top of a first base (1111). A storage fixing plate (102) is fixedly connected to the bottom of the storage plate (101). A pusher cylinder (104) is fixedly connected to the outside of the first base (1111). A pusher plate (103) is fixedly connected to the output end of the pusher cylinder (104). A storage top cylinder (106) is fixedly connected to the top of the first base (1111). A material support is fixedly connected to the output end of the storage top cylinder (106). The material support plate (105) is located at the bottom of the storage plate (101). A pre-installed fixing plate (107) is fixedly connected above the first base (1111). A first feeding servo motor (108) is fixedly connected below the pre-installed fixing plate (107). A slot plate (109) is fixedly connected to the outside of the pre-installed fixing plate (107). A first feeding ejection cylinder (110) is fixedly connected above the first base (1111). A fourth feeding mechanical gripper (7) is slidably connected above the second base (1112). The specific steps for feeding towel rack tubes include: S11. The tubes to be processed are pre-placed in the storage plate (101) and placed on the support plate (105). The top cylinder (106) of the storage plate drives the support plate (105) to lift all the tubes to be processed in the storage tank. S12, the pusher cylinder (104) drives the pusher plate (103) to move forward, and moves the tube to be processed into the contour groove on the end face of the pre-installed fixed plate (107). The storage top cylinder (106) retracts simultaneously and pushes the tube to be processed in the groove upward. S13. The first feeding servo motor (108) drives the feeding slot plate (109) and the processing tube to move forward. When they reach the top of the next contouring groove in the pre-installed fixed plate (107), they stop moving. The first feeding ejection cylinder (110) retracts and places the tube to be processed in the contouring groove of the pre-installed fixed plate (107). The first feeding servo motor (108) drives the feeding slot plate (109) back to the starting position.

3. The laser welding process for integrated processing and sealing of towel rack tube ends according to claim 1, characterized in that: The punching and flanging mechanism (2) includes a push cylinder (201), which is fixedly connected to the top of a first base (1111). A mold core fixing seat (202) is fixedly connected above the first base (1111). A mold core (203) is fixedly connected to the outside of the mold core fixing seat (202). A punch forming cylinder (204) is fixedly connected above the first base (1111). An upper horizontal block (205) is fixedly connected to the output end of the punch forming cylinder (204). A lower horizontal block (206) is fixedly connected to the top of the first base (1111). The lower horizontal block (206) is located below the upper horizontal block (205). A pre-installed spring block (207) is fixedly connected to the top of the first base (1111). The pre-installed spring block (207) is located below the upper horizontal block (205). The specific steps of stamping include: S21. After the sensing probe senses the material in place, the push cylinder (201) is activated to extend the mold core (203) into both ends of the tube to be processed. The punching forming cylinder (204) drives the upper horizontal block (205) to punch and form downwards. S22. After the die forming cylinder (204) drives the upper horizontal block (205) to return to its original position, the pre-installed spring block (207) pushes out the tube to be processed, and then pushes the cylinder (201) to drive the mold cores (203) at both ends to return to their original positions. The first feeding ejection cylinder (110) drives the feeding slot plate (109) to lift upwards, and lifts out the tube to be processed from the pre-installed fixing plate (107). S23. The No. 1 feeding servo motor (108) drives the feeding slot plate (109) and the processing tube to move forward. When working continuously, the feeding slot plate (109) can move multiple tubes to be processed forward at the same time, which can realize automatic feeding and punching processing operations.

4. The laser welding process for integrated processing and sealing of towel rack tube ends according to claim 2, characterized in that: The blocking assembly mechanism (6) includes a clamping cylinder (601), which is fixedly connected to the top of the second base (1112). The output end of the clamping cylinder (601) is fixedly connected to an upper mold clamping block (602). An assembly cylinder (603) is fixedly connected to the top of the second base (1112). A horizontal seat (604) is fixedly connected to the top of the second base (1112). A lower module (605) is fixedly connected to the top of the second base (1112), located below the upper mold clamping block (602). A pre-installed fixing plate is fixedly connected to the top of the second base (1112). 606), a second feeding ejector cylinder (609) is slidably connected below the pre-installed fixed plate (606), a feeding card plate (607) is fixedly connected to the output end of the second feeding ejector cylinder (609), a second feeding servo motor (608) is fixedly connected to the outside of the feeding card plate (607), a blockage storage trough (610) is opened above the second base (1112), the blockage storage trough (610) is located above the horizontal seat (604), a blockage pusher block (611) is fixedly connected above the second base (1112), and a blockage conveying cylinder (612) is fixedly connected above the second base (1112). The specific steps for secondary feeding of towel rack tubes include: S31. Start the No. 2 feeding ejection cylinder (609) to drive the feeding plate (607) to lift upward and lift the tube to be processed out of the contour groove opened in the pre-installed fixing plate (606); S32, the second feeding servo motor (608) drives the feeding chuck (607) and the processing tube to move forward. When they reach the top of the next contour groove in the pre-installed fixed plate (606), they stop moving. The second feeding ejection cylinder (609) drives the feeding chuck (607) to retract. S33, the second feeding servo motor (608) drives the feeding plate (607) back to the starting position, realizing the automatic feeding process of the tube to be processed.

5. The laser welding process for integrated processing and sealing of towel rack tube ends according to claim 2, characterized in that: The pipe fitting transmission mechanism (8) includes a contour slot (801), which is located at the top of the third base (1113).

6. The laser welding process for integrated processing and sealing of towel rack tube ends according to claim 5, characterized in that: A start-up sensor (802) is fixedly connected to the top of the third base (1113), a transmission chain (803) is rotatably connected to the top of the third base (1113), a limit sensor (804) is fixedly connected to the top of the third base (1113), and a transmission motor assembly (805) is fixedly connected to the top of the third base (1113). The specific steps for the three-stage feeding of the towel rack include: S41. The start-up of the drive motor assembly (805) is controlled by the start-up sensing device (802) and the limit sensing device (804); S42. The tube to be processed is moved to the end limit sensing device (804), the transmission motor assembly (805) stops working, and waits for the first feeding mechanical gripper (10) to pick up the part. The first servo motor (11) drives the first feeding mechanical gripper (10) to move above the tube to be processed, and extends one of the grippers to take out the tube to be processed placed in the end slot of the transmission mechanism. S43. If the limit sensing device (804) does not sense that there is a tube to be processed in the end slot, the drive motor assembly (805) restarts. S44. The first servo motor (11) controls the first feeding mechanical gripper (10) to place the processed tube on the lifting material support mechanism (153) at the same time. The first servo motor (11) drives the first feeding mechanical gripper (10) to quickly return to the top of the transmission mechanism, and transports the tube to be processed from the pipe transmission mechanism (8) to the lifting material support mechanism (153).

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