Three-way pipe fitting clamping and welding equipment

Abstract

The invention belongs to the technical field of mechanical part machining, and particularly relates to three-way pipe fitting clamping and welding equipment which comprises a base, a fixing frame is installed on one side of the upper end face of the base, a gear ring is rotatably connected to an inner cavity of the fixing frame, a rotating column is fixedly connected to an inner cavity of the gear ring, and a telescopic column is slidably connected to the interior of the rotating column. The problems that when an existing welding device is used for machining and manufacturing a three-way pipe fitting, the spliced three-way pipe fitting is difficult to clamp and position, meanwhile, the two pipe fittings spliced by the three-way pipe fitting are pressed, a gap at the splicing position of the two pipe fittings is smaller, and consequently after the three-way pipe fitting is welded and manufactured, the three-way pipe fitting cannot be clamped and positioned easily are solved. The problems that the internal compression resistance of the finished three-way pipe fitting is reduced and the strength of a welding structure is not high due to the fact that a gap at the splicing position of the two pipe fittings is large are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of machining of mechanical parts, and specifically relates to a clamping and welding device for a three-way pipe fitting. Background Art

[0002] Whether it is in the occasion of urban domestic water supply or industrial water supply, the three-way pipe, as a connecting component for pipe diversion, is essential. Generally, the three-way pipe is made by welding. When welding a general three-way pipe, the main pipe is clamped by a fixture, and then the branch pipe is clamped and fixed, and spliced with the main pipe. Finally, the splicing part is welded and fixed by a welding device.

[0003] A patent with the publication number CN108000047B discloses a clamping device for a thin-walled three-way pipe for welding. The angle between the clamping arms of the V-shaped clamping mechanism of this device is adjustable, and it can clamp pipe fittings within a certain size range, having a certain degree of versatility. The rubber anti-slip pads arranged on the inner side of the clamping arms can effectively increase friction, prevent slipping, and at the same time play a buffering role to avoid scratching or damaging the appearance of the thin-walled pipe. The hollow structure of the clamping arms not only improves the stiffness but also reduces the self-weight, improving the stability of the entire mechanism. A sliding guide frame is arranged in the V-shaped clamping mechanism, which can realize its left and right sliding, adjustment, and fixation; the first sliding rod sliding groove arranged on the vertical sliding rod enables the overall up and down sliding, adjustment, and positioning of the V-shaped clamping mechanism; the bottom of the horizontal sliding rod support frame is provided with a T-shaped slider corresponding to the T-shaped sliding groove on the bottom plate, so as to realize the sliding of the horizontal sliding rod support frame, thereby realizing the three degrees of freedom of movement of the clamping device and improving the versatility of the clamping device.

[0004] The above-mentioned solution still has some problems in actual use. Usually, the pipe fitting is placed flat on the workbench, and the pipe fitting is clamped and fixed by a clamping mechanism. Then, another pipe fitting is butt-jointed and installed outside the pipe fitting to be spliced into a three-way pipe fitting. At the same time, the laser welder is controlled to weld and fix around the butt-joint of the pipe fitting. However, when the existing welding equipment processes and manufactures a three-way pipe fitting, it is difficult to clamp and position the spliced three-way pipe fitting, and at the same time press the two pipe fittings spliced by the three-way pipe fitting, making the gap at the splicing part of the two pipe fittings smaller. As a result, after welding and manufacturing the three-way pipe fitting, due to the large gap at the splicing part of the two pipe fittings, the internal compressive performance of the finished three-way pipe fitting is reduced, and the welding structure strength is not high.

[0005] Therefore, the present invention provides a clamping and welding device for a three-way pipe fitting. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A three-way pipe fitting clamping and welding device described in the present invention includes a base. On one side of the upper end surface of the base, a fixed frame is installed. Inside the fixed frame, a gear ring is rotatably connected. Inside the gear ring, a rotating column is fixedly connected. Inside the rotating column, a telescopic column is slidably connected. An expansion clamping assembly is arranged outside the telescopic column; And the expansion clamping assembly includes a fixed disk fixedly connected to the outside of the telescopic column. On one side of the fixed disk, four second springs are fixedly connected. One end of each second spring is fixedly connected to a cross-shaped push disk; Four push rods are rotatably connected to the outside of the cross-shaped push disk. And inside one end of each push rod, a fixed block is rotatably connected. One end of the fixed block is fixedly connected to a clamping plate, which can drive the clamping plate to expand for squeezing and clamping the pipe fitting; On one side of the upper end surface of the base, a robotic arm is installed. And at one end of the robotic arm, a laser welder is installed, which can drive the laser welder through the robotic arm to weld and process the three-way pipe at the butt joint of the pipe fittings; An H-shaped sliding disk is slidably connected to the outside of the telescopic column. An L-shaped turning rod is rotatably connected to the outside of the H-shaped sliding disk. And the L-shaped turning rod is used to turn and clamp the pipe fitting, which can assemble the pipe fittings to form a three-way pipe.

[0008] Preferably, four limiting columns are fixedly connected to one side of the cross-shaped push disk. And the four limiting columns are slidably connected to the rotating column.

[0009] Preferably, a convex block is arranged on the outside of the telescopic column. One end of the telescopic column is fixedly connected to a cross-shaped abutting block. And the H-shaped sliding disk is slidably connected between the convex block and the cross-shaped abutting block.

[0010] Preferably, an installation groove is opened on one side of the rotating column. Inside the installation groove, an electric push rod is installed. The piston rod end of the electric push rod is fixedly connected to the telescopic column.

[0011] Preferably, U-shaped fixing frames are fixedly connected to the mutually approaching ends of the clamping plates. The L-shaped turning rod is rotatably connected to the inside of the U-shaped fixing frames.

[0012] Preferably, a plurality of sleeves are installed on the outside of the rotating column. And sliding columns are slidably connected to the inside of the plurality of sleeves. The upper ends of the sliding columns are fixedly connected to the clamping plates.

[0013] Preferably, a receiving groove is opened inside one end of the L-shaped turning rod. A T-shaped sliding rod is slidably connected to the inside of the receiving groove. One end of the T-shaped sliding rod is fixedly connected to a tension spring. One end of the tension spring is fixed to the inner wall of the receiving groove. One end of the T-shaped sliding rod is fixedly connected to a clamping block.

[0014] Preferably, a groove is formed at the upper end of the clamping plate. A fixed sliding rod is fixedly connected to the inner cavity of the groove. A resisting block is slidably connected to the outer part of the fixed sliding rod. A first spring is fixedly connected to one side of the resisting block, and one end of the first spring is fixedly connected to the inner wall of the groove.

[0015] Preferably, a rotating groove is formed in the inner cavity of the fixing frame, and the gear ring is rotatably connected to the inner cavity of the rotating groove.

[0016] Preferably, a servo motor is installed on one side of the fixing frame. The output shaft end of the servo motor penetrates through the fixing frame and is fixedly connected to a gear in the inner cavity of the rotating groove. The gear is meshed with the gear ring.

[0017] The beneficial effects of the present invention are as follows: 1. For the three-way pipe fitting clamping and welding device of the present invention, by driving the telescopic column to slide out of the rotating column and move, and making the fixed disk push the second spring to drive the cross push disk to move, and then pushing the clamping plate to expand and clamp the pipe fitting. After clamping and fixing the pipe fitting, by continuously driving the telescopic column to move, and driving the fixed disk to squeeze the second spring to move, at the same time, the telescopic column uses the convex block to push the H-shaped sliding disk to move, so that the H-shaped sliding disk drives the L-shaped turning rod to turn, and at the same time, the L-shaped turning rod abuts and clamps the inner wall of the pipe fitting, so that the pipe fitting is butted with the pipe fitting outside the rotating column and is closely fitted and spliced. Then, a laser welder is used to weld the butting part of the pipe fitting and the pipe fitting, thus solving the problem that when the existing three-way pipe fitting welding device processes and manufactures the three-way pipe fitting, if the pipe fittings are not spliced, and the butting part of the pipe fittings is not clamped and closely fitted at the same time to reduce the gap at the butting part, resulting in too large a gap at the butting part of the pipe fittings when welding the butting part of the pipe fittings to manufacture the three-way pipe, which affects the structural strength of the manufactured three-way pipe and causes the pressure that the three-way pipe can bear inside to not meet the standard later.

[0018] 2. For the three-way pipe fitting clamping and welding device of the present invention, by driving the L-shaped turning rod to rotate, and making the L-shaped turning rod drive the T-shaped sliding rod to move, and at the same time, the T-shaped sliding rod drives the clamping block to move synchronously, so that the clamping block can abut against the inner wall of the pipe fitting. Then, as the L-shaped turning rod continues to rotate, the clamping block can be used to push the inner wall of the pipe fitting to be spliced with the pipe fitting outside the rotating column, so as to reduce the gap between the butting of the pipe fittings. When welding the pipes, by using the clamping plate to clamp and fix the pipe fitting, and then using the L-shaped turning rod to drive the clamping block to clamp another pipe fitting, and at the same time, the L-shaped turning rod drives the clamping block to rotate, and after the clamping block clamps the pipe fitting, it pushes the pipe fitting to be butted with the pipe fitting outside the clamping plate, thus improving the practicability of the welding device, enabling it to perform clamping and butting for the production and processing of different pipe fittings, and solving the problem that the existing three-way pipe fitting welding device can only clamp and splice and process the three-way pipe, not only with high equipment cost, but also difficult to process and manufacture different types of pipe fittings. Description of the Drawings

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a schematic structural diagram of the overall front view of the present invention; Figure 2 is a schematic structural diagram of the overall rear view three-dimensional of the present invention; Figure 3 is a schematic structural diagram of the overall clamping and abutting assembly of the present invention; Figure 4 is a schematic structural diagram of the overall expansion clamping assembly of the present invention; Figure 5 is a schematic semi-sectional structural diagram of the rotating column of the present invention; Figure 6 is a schematic semi-sectional structural diagram of the H-shaped sliding disk of the present invention; Figure 7 is a schematic partial sectional structural diagram of the fixing bracket of the present invention; Figure 8 is a schematic structural diagram of the branch pipe clamping of the present invention; In the figure: 1, base; 2, fixing bracket; 3, gear ring; 4, rotating column; 5, servo motor; 6, installation groove; 7, sleeve; 8, sliding column; 9, clamping plate; 10, groove; 11, fixed sliding rod; 12, abutting block; 13, robotic arm; 14, U-shaped fixing bracket; 15, push rod; 16, L-shaped turning rod; 17, H-shaped sliding disk; 18, cross push disk; 19, electric push rod; 20, first spring; 21, second spring; 22, fixed disk; 23, limiting column; 24, fixed block; 25, cross abutting block; 26, convex block; 27, storage groove; 28, tension spring; 29, T-shaped sliding rod; 30, clamping block; 31, laser welder; 32, telescopic column; 33, gear; 34, rotating groove. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] Embodiment 1: As Figures 1 to 8 shown, a three-way pipe fitting clamping and welding device described in an embodiment of the present invention includes a base 1, a fixing bracket 2 is installed on one side of the upper end surface of the base 1, a gear ring 3 is rotatably connected to the inner cavity of the fixing bracket 2, a rotating column 4 is fixedly connected to the inner cavity of the gear ring 3, a telescopic column 32 is slidably connected inside the rotating column 4, and an expansion clamping assembly is arranged outside the telescopic column 32; And the expansion clamping assembly includes a fixed disk 22 fixedly connected to the outside of the telescopic column 32, four second springs 21 are fixedly connected to one side of the fixed disk 22, and one end of the second spring 21 is fixedly connected to a cross push disk 18; Four push rods 15 are externally rotatably connected to the cross push disk 18, and a fixed block 24 is rotatably connected to the inside of one end of each push rod 15. One end of the fixed block 24 is fixedly connected to a clamping plate 9, which can drive the clamping plate 9 to expand for squeezing and clamping a fixed pipe fitting. A robotic arm 13 is installed on one side of the upper end surface of the base 1, and a laser welder 31 is installed at one end of the robotic arm 13. The laser welder 31 can be driven by the robotic arm 13 to weld and process a tee pipe at the butt joint of the pipe fittings. An H-shaped sliding disk 17 is slidably connected to the outside of the telescopic column 32. An L-shaped turning rod 16 is rotatably connected to the outside of the H-shaped sliding disk 17, and the L-shaped turning rod 16 is used to turn and clamp the pipe fittings, enabling the pipe fittings to be assembled to form a tee pipe.

[0023] Specifically, in the prior art, the pipe fittings are usually placed flat on the workbench, and the clamping mechanism is used to clamp and fix the pipe fittings. Then, another pipe fitting is butt-jointed and installed outside the pipe fittings to be spliced into a tee pipe fitting. At the same time, the laser welder is controlled to weld and fix around the butt joint of the pipe fittings. However, when the existing welding equipment processes and manufactures the tee pipe fittings, it is difficult to clamp and position the spliced tee pipe fittings, and at the same time, press the two pipe fittings spliced by the tee pipe fittings to make the gap at the splicing of the two pipe fittings smaller. As a result, after welding and manufacturing the tee pipe fittings, due to the large gap at the splicing of the two pipe fittings, the internal compressive performance of the finished tee pipe fittings is reduced, and the welding structure strength is not high. When manufacturing a tee pipe, the present invention installs a pipe fitting outside the rotating column 4, simultaneously drives the telescopic column 32 to slide out of the rotating column 4, and drives the fixed disk 22 to move synchronously. At the same time, the fixed disk 22 drives the second spring 21 to move, then drives the cross push disk 18 to move, and makes the cross push disk 18 drive the push rod 15 to turn over. At the same time, the push rod 15 pushes the fixed block 24 to expand, so that the fixed block 24 drives the clamping plate 9 to expand, and the clamping plate 9 clamps and fixes the pipe fitting outside the rotating column 4. At the same time, the pipe fitting to be welded is installed outside the L-shaped turning rod 16, and then the telescopic column 32 is continuously driven to move. After the telescopic column 32 drives the clamping plate 9 to clamp and fix the pipe fitting, the continuous movement of the telescopic column 32 will drive the fixed disk 22 to compress the second spring 21. At the same time, the telescopic column 32 drives the H-shaped sliding disk 17 to move, and makes the H-shaped sliding disk 17 push the L-shaped turning rod 16 to turn over. Thus, during the turning process of the L-shaped turning rod 16, the external pipe fitting is clamped, and at the same time, the pipe fitting is pushed to be butted with the pipe fitting clamped and fixed outside the rotating column 4, so that it is closely attached to the pipe fitting outside the rotating column 4. Then, the mechanical arm 13 is started to drive the welding angle of the laser welder 31, and at the same time, the gear ring 3 is driven to rotate, and the gear ring 3 drives the rotating column 4 to rotate, then drives the butted pipe fittings to rotate. At the same time, the mechanical arm 13 is used to adjust the welding angle of the laser welder 31 in real time, and weld and fix the butted pipe fittings, thereby realizing the processing and manufacturing of the tee pipe, and solving the above problems.

[0024] As Figure 1 、 Figure 3 and Figure 5 shown, four limiting columns 23 are fixedly connected to one side of the cross push disk 18, and the four limiting columns 23 are slidably connected to the rotating column 4.

[0025] As Figure 2 、 Figure 3 and Figure 5 shown, a convex block 26 is arranged outside the telescopic column 32, one end of the telescopic column 32 is fixedly connected to a cross abutting block 25, and the H-shaped sliding disk 17 is slidably connected between the convex block 26 and the cross abutting block 25.

[0026] Specifically, by driving the telescopic column 32 to slide out and move the rotating column 4, and causing the telescopic column 32 to drive the fixed disk 22 to move, while using the second spring 21 to drive the cross push disk 18 to move, and then causing the cross push disk 18 to drive the limit column 23 to slide out of the rotating column 4 for movement, thereby pushing the clamping plate 9 to expand and clamp the fixed pipe fitting. After clamping and fixing the pipe fitting, by continuously driving the telescopic column 32 to move, and causing the telescopic column 32 to drive the fixed disk 22 to squeeze the second spring 21 to move, at the same time, the telescopic column 32 uses the convex block 26 to push the H-shaped sliding disk 17 to move, thereby causing the H-shaped sliding disk 17 to drive the L-shaped turning rod 16 to turn, and at the same time, the L-shaped turning rod 16 abuts and clamps the inner wall of the pipe fitting, enabling the pipe fitting to be butted and closely fitted with the pipe fitting outside the rotating column 4, and then using the laser welder 31 to weld the butted joint of the pipe fitting and the pipe fitting, thus solving the problem that when the existing three-way pipe fitting welding device manufactures the three-way pipe fitting, if the pipe fittings are not spliced, and at the same time the butted joint of the pipe fittings is clamped and closely fitted to reduce the gap at the butted joint, resulting in when welding the butted joint of the pipe fittings to manufacture the three-way pipe, due to the excessive gap at the butted joint, the structural strength of the manufactured three-way pipe is affected, and the pressure that the three-way pipe can withstand inside in the later stage does not meet the standard.

[0027] As Figure 1 , Figure 3 and Figure 5 shown, an installation groove 6 is opened on one side of the rotating column 4, and an electric push rod 19 is installed in the inner cavity of the installation groove 6. The piston rod end of the electric push rod 19 is fixedly connected to the telescopic column 32.

[0028] As Figure 2 , Figure 3 and Figure 5 shown, a U-shaped fixing frame 14 is fixedly connected to one end of the clamping plate 9 close to each other, and the L-shaped turning rod 16 is rotatably connected to the inner cavity of the U-shaped fixing frame 14.

[0029] As Figure 2 , Figure 4 and Figure 5 shown, a plurality of sleeves 7 are installed outside the rotating column 4, and a sliding column 8 is slidably connected to the inner cavity of the plurality of sleeves 7. The upper end of the sliding column 8 is fixedly connected to the clamping plate 9.

[0030] Specifically, when assembling the three-way pipe fitting, the pipe fitting is installed on the outside of the rotating column 4, and another pipe fitting is installed on the outside of the L-shaped flip rod 16, and then the electric push rod 19 is started to drive the telescopic column 32 to move, and the telescopic column 32 drives the fixed plate 22 to move, and then the clamping plate 9 is driven to drive the sliding column 8 to slide out of the sleeve 7 for expansion, so that the pipe fitting outside the rotating column 4 is clamped and fixed, and then the telescopic column 32 is driven to continue to move, and the telescopic column 32 drives the H-shaped sliding plate 17 to move, and then the L-shaped flip rod 16 is driven to rotate and connect in the inner cavity of the U-shaped fixed frame 14. At the same time, during the rotation process, the L-shaped flip rod 16 clamps and pushes the external pipe fitting, and makes the pushed pipe fitting dock with the pipe fitting outside the rotating column 4, thereby improving the precision of the three-way pipe splicing and assembly, and ensuring the quality of welding processing and manufacturing.

[0031] Embodiment 2: Figure 2 , Figure 4 and Figure 5 As shown, a receiving groove 27 is opened in one end of the L-shaped flip rod 16, and a T-shaped slide bar 29 is slidably connected to the inner cavity of the receiving groove 27. A tension spring 28 is fixed to one end of the T-shaped slide bar 29. One end of the tension spring 28 is fixed to the inner wall of the receiving groove 27, and a clamping block 30 is fixed to one end of the T-shaped slide bar 29.

[0032] Specifically, when clamping and splicing the tee pipe, the L-shaped flip rod 16 is driven to rotate, and the L-shaped flip rod 16 drives the T-shaped slide bar 29 to move, and the T-shaped slide bar 29 drives the clamp block 30 to move synchronously, so that the clamp block 30 can be against the inner wall of the pipe fitting, and then with the continuous rotation of the L-shaped flip rod 16, the clamp block 30 can be used to push the inner wall of the pipe fitting and the pipe fitting outside the rotating column 4 for splicing, so as to reduce the gap between the pipe fittings and the pipe fittings. When the pipeline is butt-welded, the pipe fittings are clamped by using the clamp plate 9. The L-shaped flip rod 16 is then used to drive the clamp block 30 to clamp another pipe fitting. At the same time, the L-shaped flip rod 16 drives the clamp block 30 to rotate, and after the clamp block 30 clamps the pipe fitting, it pushes the pipe fitting to connect with the pipe fitting outside the clamp plate 9, thereby improving the practicability of the welding equipment, enabling it to clamp and connect different pipe fittings for production and processing, and solving the problem that the existing three-way pipe fitting welding equipment can only clamp and splice three-way pipes, which not only has high equipment cost, but also is difficult to process and manufacture pipe fittings of different models.

[0033] like Figure 4 and Figure 5 As shown, a groove 10 is opened at the upper end of the splint 9, a fixed slide rod 11 is fixedly connected to the inner cavity of the groove 10, a stop block 12 is slidably connected to the outside of the fixed slide rod 11, a first spring 20 is fixedly connected to one side of the stop block 12, and one end of the first spring 20 is fixedly connected to the inner wall of the groove 10.

[0034] Specifically, when splicing and manufacturing a three-way pipe, the pipe fitting is installed outside the clamping plate 9. At the same time, the pipe fitting abuts against the abutting block 12, and the abutting block 12 slides outside the fixed slide rod 11, thereby squeezing the first spring 20. Then, the resilience of the first spring 20 can be used to bounce up the abutting block 12, and the abutting block 12 is made to push the pipe fitting to abut against the pipe fitting outside the L-shaped turning rod 16, ensuring the tightness of the butt joint and improving the quality of the welded three-way pipe.

[0035] As Figure 1 , Figure 3 and Figure 7 shown, a rotating groove 34 is formed in the inner cavity of the fixing frame 2, and the gear ring 3 is rotatably connected in the inner cavity of the rotating groove 34.

[0036] As Figure 1 , Figure 3 and Figure 7 shown, a servo motor 5 is installed on one side of the fixing frame 2. The output shaft end of the servo motor 5 penetrates through the fixing frame 2 and is fixedly connected with a gear 33 in the inner cavity of the rotating groove 34. The gear 33 is meshed and connected with the gear ring 3.

[0037] Specifically, when welding and processing the three-way pipe, the servo motor 5 is started to drive the gear 33 to rotate, and the gear 33 meshes and drives the gear ring 3 to rotate, thereby driving the rotating column 4 to rotate. At the same time, the rotating column 4 drives the fixed disk 22 and the clamping plate 9 to rotate synchronously, thereby driving the spliced three-way pipe to rotate. Then, the robotic arm 13 is coordinated to control the laser welder 31 to weld and fix the butt joint of the spliced three-way pipe, thereby improving the processing and manufacturing efficiency of the three-way pipe.

[0038] Working principle: When manufacturing a tee pipe, the pipe fitting is installed outside the rotating column 4. At the same time, the telescopic column 32 is driven to slide out of the rotating column 4, driving the fixed disk 22 to move synchronously. Meanwhile, the fixed disk 22 drives the second spring 21 to move, then drives the cross push disk 18 to move, and makes the cross push disk 18 drive the push rod 15 to flip. At the same time, the push rod 15 pushes the fixed block 24 to expand, so that the fixed block 24 drives the clamping plate 9 to expand, and the clamping plate 9 clamps and fixes the pipe fitting outside the rotating column 4. At the same time, the pipe fitting to be welded is installed outside the L-shaped flipping rod 16. Then, the telescopic column 32 is continuously driven to move. After the telescopic column 32 drives the clamping plate 9 to clamp and fix the pipe fitting, the continuous movement of the telescopic column 32 will drive the fixed disk 22 to compress the second spring 21. At the same time, the telescopic column 32 drives the H-shaped sliding disk 17 to move, and makes the H-shaped sliding disk 17 push the L-shaped flipping rod 16 to flip. Thus, during the flipping process of the L-shaped flipping rod 16, the external pipe fitting is clamped, and at the same time, the pipe fitting is pushed to be butted with the pipe fitting clamped and fixed outside the rotating column 4, making it closely fit with the pipe fitting outside the rotating column 4. Then, the mechanical arm 13 is started to drive the welding angle of the laser welder 31, and the gear ring 3 is driven to rotate. The gear ring 3 drives the rotating column 4 to rotate, then drives the butted pipe fittings to rotate. At the same time, the mechanical arm 13 is used to adjust the welding angle of the laser welder 31 in real time, and the butted pipe fittings are welded and fixed, thus realizing the manufacturing of the tee pipe; By driving the telescopic column 32 to slide out of the rotating column 4 and move, the telescopic column 32 drives the fixed disk 22 to move. Meanwhile, the second spring 21 is used to drive the cross push disk 18 to move. Then, the cross push disk 18 drives the limit column 23 to slide out of the rotating column 4 and move, thus pushing the clamping plate 9 to expand and clamp and fix the pipe fitting. After clamping and fixing the pipe fitting, by continuously driving the telescopic column 32 to move, the telescopic column 32 drives the fixed disk 22 to squeeze the second spring 21 to move. At the same time, the telescopic column 32 uses the convex block 26 to push the H-shaped sliding disk 17 to move, so that the H-shaped sliding disk 17 drives the L-shaped flipping rod 16 to flip. At the same time, the L-shaped flipping rod 16 abuts and clamps the inner wall of the pipe fitting, making the pipe fitting butted with the pipe fitting outside the rotating column 4 and closely fit and join. Then, the laser welder 31 is used to weld the butted part of the pipe fittings.

[0039] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-way pipe fitting clamping and welding device, characterized in that: It includes a base (1). On one side of the upper end surface of the base (1), a fixing frame (2) is installed. Inside the fixing frame (2), a gear ring (3) is rotatably connected. Inside the gear ring (3), a rotating column (4) is fixedly connected. Inside the rotating column (4), a telescopic column (32) is slidably connected. An expanding and clamping assembly is arranged outside the telescopic column (32). And the expanding and clamping assembly includes a fixing disk (22) fixedly connected to the outside of the telescopic column (32). On one side of the fixing disk (22), four second springs (21) are fixedly connected. One end of each second spring (21) is fixedly connected to a cross-shaped pushing disk (18). Outside the cross-shaped pushing disk (18), four pushing rods (15) are rotatably connected. And inside one end of each pushing rod (15), a fixing block (24) is rotatably connected. One end of the fixing block (24) is fixedly connected to a clamping plate (9), which can drive the clamping plate (9) to expand for squeezing and clamping a fixed pipe fitting. On one side of the upper end surface of the base (1), a robotic arm (13) is installed. And at one end of the robotic arm (13), a laser welder (31) is installed, which can drive the laser welder (31) through the robotic arm (13) to weld and process a three-way pipe at the docking part of the pipe fittings. Outside the telescopic column (32), an H-shaped sliding disk (17) is slidably connected. Outside the H-shaped sliding disk (17), an L-shaped turning rod (16) is rotatably connected. And the L-shaped turning rod (16) is used to turn and clamp the pipe fitting, enabling the pipe fittings to be assembled into a three-way pipe.

2. The clamping and welding device for a tee pipe fitting according to claim 1, characterized in that: On one side of the cross-shaped pushing disk (18), four limiting columns (23) are fixedly connected. And the four limiting columns (23) are slidably connected to the rotating column (4).

3. The clamping and welding device for a tee pipe fitting according to claim 1, characterized in that: On the outside of the telescopic column (32), a convex block (26) is arranged. One end of the telescopic column (32) is fixedly connected to a cross-shaped abutting block (25). And the H-shaped sliding disk (17) is slidably connected between the convex block (26) and the cross-shaped abutting block (25).

4. The clamping and welding device for a tee pipe fitting according to claim 1, wherein: On one side of the rotating column (4), an installation groove (6) is formed. Inside the installation groove (6), an electric push rod (19) is installed. The piston rod end of the electric push rod (19) is fixedly connected to the telescopic column (32).

5. The clamping and welding device for a tee pipe fitting according to claim 1, characterized in that: On the mutually approaching ends of the clamping plates (9), a U-shaped fixing frame (14) is fixedly connected. The L-shaped turning rod (16) is rotatably connected to the inside of the U-shaped fixing frame (14).

6. The clamping and welding device for a tee pipe fitting according to claim 1, wherein: Outside the rotating column (4), a plurality of sleeves (7) are installed. And inside the plurality of sleeves (7), a sliding column (8) is slidably connected. The upper end of the sliding column (8) is fixedly connected to the clamping plate (9).

7. The clamping and welding device for a tee pipe fitting according to claim 5, characterized in that: Inside one end of the L-shaped turning rod (16), a storage groove (27) is formed. Inside the storage groove (27), a T-shaped sliding rod (29) is slidably connected. One end of the T-shaped sliding rod (29) is fixedly connected to a tension spring (28). One end of the tension spring (28) is fixed to the inner wall of the storage groove (27). One end of the T-shaped sliding rod (29) is fixedly connected to a clamping block (30).

8. The clamping and welding equipment for a tee pipe fitting according to claim 6, characterized in that: The upper end of the clamping plate (9) is provided with a groove (10). A fixed sliding rod (11) is fixedly connected to the inner cavity of the groove (10). A resisting block (12) is slidably connected to the outside of the fixed sliding rod (11). A first spring (20) is fixedly connected to one side of the resisting block (12). One end of the first spring (20) is fixedly connected to the inner wall of the groove (10).

9. The clamping and welding device for a three-way pipe fitting according to claim 1, wherein: A rotating groove (34) is formed in the inner cavity of the fixed frame (2). The toothed ring (3) is rotatably connected to the inner cavity of the rotating groove (34).

10. The clamping and welding device for a tee pipe fitting according to claim 9, characterized in that: A servo motor (5) is installed on one side of the fixed frame (2). The output shaft end of the servo motor (5) penetrates through the fixed frame (2) and a gear (33) is fixedly connected to the inner cavity of the rotating groove (34). The gear (33) is meshed with the toothed ring (3).

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