Three-way pipe joint production device

Abstract

The invention discloses a three-way pipe joint production device, and belongs to the technical field of welding equipment.The three-way pipe joint production device comprises a machine base, a supporting column, a top plate, a lifting plate, a welding mechanism and a driving shaft, the upper end of the driving shaft is connected with a rotating seat, the top of the rotating seat is fixedly connected with a limiting seat, and a steel pipe transverse groove is formed in the top face of the limiting seat; the elastic abutting mechanism is arranged on the lifting plate and located above the limiting base. The profiling mechanism is arranged on the machine base and used for driving the limiting base to vertically move when the driving shaft rotates. According to the three-way pipe welding device, through the profiling mechanism, when the driving shaft rotates, the limiting base can be driven to vertically move, the welding track of the welding gun on the three-way pipe is matched with the intersecting line of the vertical pipe and the transverse pipe of the three-way pipe, then the welding position does not need to be adjusted in a manual mode, and due to the fact that the profiling mechanism can automatically act along with rotation of the driving shaft, the welding efficiency is improved. And therefore, the device can adapt to batch welding production operation, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding equipment, and particularly relates to a production device for a three-way pipe joint. Background Art

[0002] A three-way joint is a type of pipe fitting. Its connection form is to directly butt-weld the three-way with a steel pipe. As the name implies, a three-way pipe has three openings, that is, one inlet and two outlets; or two inlets and one outlet. It is a type of chemical engineering pipe fitting, with T-shaped and Y-shaped, having equal-diameter pipe openings and also having different-diameter pipe openings, and is used at the convergence of three identical or different pipelines. Its main function is to change the fluid direction, and three-way pipes are widely used in pipe networks for transporting liquids and gases. Due to different transported media, the materials of three-way pipes are divided into: cast iron, cast steel, cast copper, cast aluminum, plastic, glass, etc.

[0003] Some three-way pipe joints made of metal materials are cast, and some are formed by welding two joints to form a three-way form. When welding existing three-way pipe joints, it is generally operated by welding equipment. For example, a welding device for a stainless steel three-way pipe disclosed in the patent with the publication number CN213702264U includes a workbench. One end of the piston rod of the electric push rod is provided with a driving motor. One end of the output shaft of the driving motor is fixedly connected with a top plate. A rotary table bearing is embedded and fixed on one side of the welding table. One side of the rotary table bearing is fixedly connected with a fixing plate. An oil pressure vise is fixedly installed on the upper end of the fixing plate. A second bull's-eye bearing is fixedly connected to the first bull's-eye bearing through a connecting rod. A concave block is fixedly connected to the second bull's-eye bearing. One end of a rotating rod is provided with a welding head. By providing an oil pressure vise for fixing the stainless steel pipe, and driving the driving motor and the top plate by the electric push rod to fix the stainless steel pipe, and it can also be rotated, which is very convenient to use. Moreover, the welding head is far from the hand-operating position, which can prevent hot metal chips from splashing onto the hands of construction workers, reducing safety hazards.

[0004] When the above-mentioned welding equipment in the prior art performs welding, through the combined use of the first bull's-eye bearing and the second bull's-eye bearing, and the rotating rod can rotate in the concave block, the position of the welding head can be adjusted for welding. Moreover, the welding head is far from the hand-operating position, which can prevent hot metal chips from splashing onto the hands of construction workers, reducing safety hazards. The above technical solution adjusts the welding position by manual adjustment. However, since the welding position of the three-way pipe joint is the intersection line position of two steel pipes, during actual adjustment, workers cannot accurately adjust to the welding position manually, resulting in the welding position not coinciding with the intersection line of the two steel pipes, thereby leading to low welding accuracy. And if the welding position is adjusted manually, the labor intensity is large and batch production cannot be carried out. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a production device for a three-way pipe joint.

[0006] The technical solution adopted to solve the above technical problem is: A production device for a three-way pipe joint, comprising: A machine base and two columns installed on the top of the machine base, and a top plate is installed at the upper ends of the two columns; A lifting plate vertically slidably connected to the top plate, and a welding mechanism is installed on one side of the lifting plate; A driving shaft vertically rotatably connected to the machine base, a rotating seat is vertically slidably connected to the upper end of the driving shaft, a limiting seat is fixedly connected to the top of the rotating seat, and a steel pipe horizontal placement groove is formed on the top surface of the limiting seat; An elastic pressing mechanism provided on the lifting plate, and the elastic pressing mechanism is located above the limiting seat; A profiling mechanism provided on the machine base, and the profiling mechanism is used to drive the limiting seat to move vertically when the driving shaft rotates.

[0007] Through the above technical solution, the horizontal pipe of the three-way pipe is limited by the steel pipe horizontal placement groove, and then the vertical pipe of the three-way pipe is pressed tightly against the opening of the pipe wall of the horizontal pipe of the three-way pipe through the elastic pressing mechanism, so as to limit and fix the vertical pipe and the horizontal pipe of the three-way pipe. During the welding process, through the profiling mechanism, when the driving shaft rotates, it can drive the limiting seat to move vertically, so that the welding trajectory of the welding gun on the three-way pipe matches the intersection line of the vertical pipe and the horizontal pipe of the three-way pipe. Therefore, there is no need to adjust the welding position manually, and since the profiling mechanism can automatically operate as the driving shaft rotates, it can adapt to batch welding production operations and reduce the labor intensity of workers.

[0008] Further, guiding columns are vertically and fixedly connected to both ends of the lifting plate, the guiding columns slidably penetrate the top plate, and a lifting cylinder is vertically installed on the top plate, and the end of the cylinder rod of the lifting cylinder is connected to the lifting plate.

[0009] Through the above technical solution, the telescopic movement of the cylinder rod of the lifting cylinder drives the lifting plate to move vertically up and down, and at the same time, the guiding columns slide and guide on the top plate, so as to guide and limit the lifting movement of the lifting plate and prevent the lifting plate from rotating.

[0010] Further, the welding mechanism includes a mounting plate installed on the lifting plate, an adjusting component is installed on the mounting plate, and a welding gun is installed on the adjusting component.

[0011] Through the above technical solution, the installation position of the welding gun is finely adjusted by the adjusting component, so as to improve the welding accuracy.

[0012] Further, the adjustment assembly includes a first adjustment base connected to the mounting plate. A regulating block is in contact connection with the surface of the first adjustment base. A second adjustment base is snap-fitted onto the outer wall of the regulating block. A first adjustment screw rod is rotatably connected to the first adjustment base. The first adjustment screw rod is in threaded connection with the regulating block. A sliding block is in contact connection with the surface of the second adjustment base. A bracket is mounted on the sliding block. The welding torch is installed at the lower end of the bracket. A second adjustment screw rod is rotatably connected to the second adjustment base. The second adjustment screw rod is in threaded connection with the regulating block, and the axial directions of the first adjustment screw rod and the second adjustment screw rod are perpendicular to each other.

[0013] Through the above technical solution, the first adjustment screw rod rotates on the first adjustment base, and then the first adjustment screw rod and the regulating block are screwed together, so as to drive the regulating block to move along the axial direction of the first adjustment screw rod. The second adjustment screw rod rotates, so that the second adjustment screw rod and the regulating block are screwed together, so as to drive the second adjustment base to move along the axial direction of the second adjustment screw rod, and the movement direction is perpendicular to the movement direction of the regulating block on the first adjustment base. Furthermore, the position of the welding torch in two orthogonal directions can be adjusted.

[0014] Further, a driving cylinder is installed on the upward-facing surface of the second adjustment base. The end of the cylinder rod of the driving cylinder is connected to the sliding block.

[0015] Through the above technical solution, the driving cylinder drives the sliding block to slide on the surface of the second adjustment base, so that the welding torch can move up and down quickly to realize the feeding and resetting actions.

[0016] Further, the elastic pressing mechanism includes a mounting ring connected to the bottom surface of the lifting plate. A rotating sleeve is rotatably connected to the mounting ring. A cylindrical portion is telescopically inserted into the rotating sleeve. One end of the cylindrical portion passing through the rotating sleeve is coaxially fixed with a pressing portion. An elastic structure is connected between the cylindrical portion and the rotating sleeve. The elastic structure imparts potential energy to the cylindrical portion to move downward.

[0017] Through the above technical solution, the elastic structure generates potential energy for the cylindrical portion to move downward, so that when the pressing portion abuts against the end face of the vertical pipe of the tee pipe, the vertical pipe can keep pressing the horizontal pipe.

[0018] Further, the elastic structure includes a return spring wound around the periphery of the cylindrical portion. The two ends of the elastic force direction of the return spring respectively elastically abut against the end face of the pressing portion and the end face of the rotating sleeve. A limit pin is fixed to one end of the cylindrical portion inserted into the rotating sleeve. A kidney-shaped hole for the limit pin to freely pass through is formed in the periphery of the rotating sleeve.

[0019] Through the above technical solution, the reset spring has a downward elastic abutting force on the abutting part, so that the abutting part has the potential energy to move downward. In addition, by sliding the limit pin in the kidney-shaped hole, the cylindrical part will not rotate circumferentially in the rotating sleeve, so that the abutting part and the rotating sleeve rotate synchronously.

[0020] Further, two abutting parts are rotatably connected to the lower end of the abutting part, and the two abutting parts are symmetrically arranged along the axis of the abutting part. A retracting and expanding structure is arranged in the abutting part, and the retracting and expanding structure is used to drive the two abutting parts to rotate along the rotation fulcrum of the abutting part.

[0021] Through the above technical solution, the retracting and expanding structure drives the two abutting parts to rotate towards the radial outer side of the abutting part, so that the abutting parts can extrude the inner wall of the vertical pipe of the three-way pipe, so that the vertical pipe will not rotate and keep the vertical pipe in a limited state.

[0022] Further, the retracting and expanding structure includes a retracting and expanding cylinder vertically installed in the inner cavity of the abutting part. A double rack column is fixedly connected to the cylinder rod of the retracting and expanding cylinder. A gear part is fixedly connected to the abutting part, and the gear part and the rotation fulcrum of the abutting part on the abutting part are coaxial. The two gear parts are respectively engaged with the two side racks on the double rack column.

[0023] Through the above technical solution, the telescopic movement of the cylinder rod of the retracting and expanding cylinder drives the double rack column to perform a linear movement along the axis of the abutting part. Then, the two side rack parts of the double rack column are respectively engaged with the two gear parts, so as to drive the abutting part to rotate along the rotation fulcrum of the abutting part. Since the two gear parts are respectively located on the opposite sides of the double rack column, when the two gear parts are engaged with the rack parts on the double rack column, they can rotate synchronously and in opposite directions.

[0024] Further, the profiling mechanism includes a telescopic column fixedly connected to the bottom surface of the rotating seat. A telescopic sleeve is coaxially fixedly connected to the top end of the driving shaft. A sliding hole for the telescopic column to pass through freely is formed in the end surface of the telescopic sleeve. The top surface of the machine base is horizontally fixedly connected with an annular seat through a plurality of columns. A profiling part is fixedly connected to the top surface of the annular seat. The profiling part includes two downwardly curved concave sections and two upwardly convex sections. Two mounting columns are fixedly connected to the bottom of the rotating seat. The lower end of the mounting column is rotatably fitted with a ball, and the ball is in rolling contact with the upward surface of the profiling part.

[0025] Through the above technical solution, the movement trajectory of the ball on the surface of the profiling part matches the intersection line of the riser and the horizontal pipe on the tee pipe. During the welding process of the tee pipe, it rotates while moving up and down, so that the welding position of the welding gun on the tee pipe matches the intersection line, realizing automatic welding of the intersection line position at the connection of the riser and the horizontal pipe of the tee pipe without adjusting the welding position, and improving the welding precision.

[0026] The beneficial effects of the present invention are as follows: In the present invention, the horizontal pipe of the tee pipe is limited by the horizontal groove of the steel pipe, and then the riser of the tee pipe is tightly pressed against the opening of the pipe wall of the horizontal pipe of the tee pipe through the elastic pressing mechanism, so as to limit and fix the riser and the horizontal pipe of the tee pipe. During the welding process, through the profiling mechanism, when the driving shaft rotates, it can drive the limiting seat to move vertically, so that the welding trajectory of the welding gun on the tee pipe matches the intersection line of the riser and the horizontal pipe of the tee pipe. Therefore, there is no need to manually adjust the welding position, and since the profiling mechanism can automatically act as the driving shaft rotates, it can adapt to batch welding production operations and reduce the labor intensity of workers. In the present invention, the first adjusting screw rotates on the first adjusting seat, so that the first adjusting screw and the adjusting block are screwed together, driving the adjusting block to move along the axial direction of the first adjusting screw. By rotating the second adjusting screw, the second adjusting screw is screwed with the adjusting block to drive the second adjusting seat to move along the axial direction of the second adjusting screw, and the movement direction is perpendicular to the movement direction of the adjusting block on the first adjusting seat. Therefore, the welding head position of the welding gun can be adjusted by moving the welding gun in two orthogonal directions. In the present invention, the cylinder rod of the telescopic cylinder extends and retracts, driving the double-rack column to perform linear motion along the axial direction of the pressing part. Then, the rack parts on both sides of the double-rack column are respectively engaged with the two gear parts, so that the pressing part can be driven to rotate around the rotation fulcrum of the pressing part. Since the two gear parts are respectively located on the opposite sides of the double-rack column, when the two gear parts are engaged with the rack parts on the double-rack column, they can rotate synchronously and in opposite directions. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of a tee pipe joint production device in an embodiment of the present invention; Figure 2 is Figure 1 the enlarged schematic diagram of the local structure at A in Figure 3 is Figure 1 the positional relationship schematic diagram of the first perspective in Figure 4 is Figure 1 the positional relationship schematic diagram of the second perspective in Figure 5Yes Figure 1 Schematic diagram of the positional relationship of the third perspective in Figure 6 Yes Figure 5 Enlarged schematic diagram of the local structure at B in Figure 7 Schematic diagram of the positional relationship after the installation ring, cylindrical part and rotating sleeve in the present invention are assembled Figure 8 Yes Figure 7 Exploded decomposition schematic diagram of the structure in Figure 9 Yes Figure 7 Schematic diagram of the positional relationship from another perspective in Figure 10 Yes Figure 9 Exploded decomposition schematic diagram of the structure in

[0028] Reference numerals: 1, machine base; 2, annular seat; 3, rotating seat; 4, limiting seat; 5, three-way pipe joint; 6, welding gun; 7, first adjusting seat; 8, guide post; 9, lifting cylinder; 10, top plate; 11, lifting plate; 12, rotating sleeve; 13, return spring; 14, pressing part; 15, second adjusting seat; 16, pressing part; 17, pillar; 18, first adjusting screw rod; 19, mounting plate; 20, second adjusting screw rod; 21, driving cylinder; 22, reduction motor; 23, bracket; 24, profiling part; 25, driving shaft; 26, telescopic sleeve; 27, ball; 28, mounting post; 29, telescopic column; 30, mounting ring; 31, cylindrical part; 32, kidney-shaped hole; 33, retractable and expandable cylinder; 34, double-rack column; 35, gear part; 36, limiting pin. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] As shown in Figures 1 - 10As shown in the figure, this embodiment provides a production device for a three-way pipe joint, which includes a machine base 1 installed on a placement surface. On the opposite sides of the top of the machine base 1, a support column 17 is installed by screws respectively. The upper ends of the two support columns 17 are jointly installed with a top plate 10 by screws. The top plate 10 is horizontally installed. In addition, a lifting cylinder 9 is vertically installed on the top of the top plate 10. The cylinder rod of the lifting cylinder 9 slidably penetrates the top plate 10 and its end is fixedly connected with a lifting plate 11. The lifting plate 11 is driven by the telescopic movement of the cylinder rod of the lifting cylinder 9 to drive the lifting plate 11 to move up and down. In addition, a guide post 8 is vertically installed at each end of the length direction of the lifting plate 11. The upper end of the guide post 8 penetrates the top plate 10 and can freely slide on the top plate 10. The guide post 8 guides and limits the vertical lifting movement of the lifting plate 11, so that when the lifting plate 11 moves, it is not easy to generate circumferential rotation on the horizontal plane; A drive shaft 25 is rotatably connected to the machine base 1 through a bearing seat. In addition, a motor base is installed on the bottom surface of the machine base 1, and a reduction motor 22 is installed on the motor base. The reduction motor 22 is drivingly connected to the drive shaft 25, so that the reduction motor 22 can drive the drive shaft 25 to rotate. A telescopic sleeve 26 is coaxially fixedly connected to the upper end of the drive shaft 25. A telescopic column 29 is telescopically inserted into the telescopic sleeve 26. Specifically, a sliding hole for the telescopic column 29 to freely pass through is provided on the end face of the telescopic sleeve 26. The cross section of the telescopic column 29 is rectangular. Similarly, the cross section of the sliding hole is adaptively adjusted to be rectangular, so that the telescopic column 29 will not rotate in the telescopic sleeve 26. In addition, the upper end of the telescopic column 29 passes through the telescopic sleeve 26 and is fixedly connected with a rotating seat 3, so that the rotating seat 3 can be vertically slid in the telescopic sleeve 26 through the telescopic column 29, and is vertically slidably connected to the drive shaft 25. A limiting seat 4 is fixedly connected to the top surface of the rotating seat 3. A steel pipe horizontal placement groove for installing the horizontal pipe of the three-way pipe joint 5 is provided on the top surface of the limiting seat 4. The length dimension of the steel pipe horizontal placement groove matches the length dimension of the horizontal pipe of the three-way pipe joint 5; One end of the lifting plate 11 in the length direction is provided with a mounting plate 19. A first adjusting seat 7 is mounted on the mounting plate 19 by screws. A regulating block (not shown in the figure) is in contact connection with the surface of the first adjusting seat 7. A second adjusting seat 15 is snap-fitted on the outer wall of the regulating block. A first adjusting screw rod 18 is rotatably connected to the first adjusting seat 7. The first adjusting screw rod 18 is in threaded connection with the regulating block. A sliding block is in contact connection with the surface of the second adjusting seat 15. A bracket 23 is mounted on the sliding block. A welding gun 6 is mounted at the lower end of the bracket 23 (the welding gun 6 is a common structure in the prior art, and its working principle will not be elaborated here). A second adjusting screw rod 20 is rotatably connected to the second adjusting seat 15. The second adjusting screw rod 20 is in threaded connection with the regulating block. The axial directions of the first adjusting screw rod 18 and the second adjusting screw rod 20 are perpendicular to each other. By rotating the first adjusting screw rod 18 on the first adjusting seat 7, the first adjusting screw rod 18 and the regulating block are threadedly engaged, so as to drive the regulating block to move axially along the first adjusting screw rod 18. By rotating the second adjusting screw rod 20, the second adjusting screw rod 20 and the regulating block are threadedly engaged, so as to drive the second adjusting seat 15 to move axially along the second adjusting screw rod 20, and the moving direction is perpendicular to the moving direction of the regulating block on the first adjusting seat 7. Thus, the position of the welding gun 6 in two orthogonal directions can be adjusted. In addition, a driving cylinder 21 is mounted on the upward-facing surface of the second adjusting seat 15. The end of the cylinder rod of the driving cylinder 21 is connected to the sliding block. The driving cylinder 21 drives the sliding block to slide on the surface of the second adjusting seat 15, so that the welding gun 6 can move up and down quickly to realize feeding and resetting actions; The bottom surface of the lifting plate 11 is connected with a mounting ring 30 by screws. A rotating sleeve 12 is vertically rotatably connected to the mounting ring 30 through a mounting bearing. A cylindrical part 31 is telescopically inserted into the rotating sleeve 12. One end of the cylindrical part 31 passing through the rotating sleeve 12 is coaxially fixed with a pressing part 14. A return spring 13 is wound around the periphery of the cylindrical part 31. The two ends of the return spring 13 in the elastic force direction are elastically abutted against the end face of the pressing part 14 and the end face of the rotating sleeve 12 respectively. A limit pin 36 is fixed to the end of the cylindrical part 31 inserted into the rotating sleeve 12. A kidney-shaped hole 32 for the free passage of the limit pin 36 is formed in the periphery of the rotating sleeve 12. The return spring 13 has a downward elastic abutting force on the pressing part 14, so that the pressing part 14 has the potential energy of moving downward. In addition, by sliding the limit pin 36 in the kidney-shaped hole 32, the cylindrical part 31 will not rotate circumferentially in the rotating sleeve 12, so that the pressing part 14 and the rotating sleeve 12 rotate synchronously; The lower end of the pressing part 14 is rotatably connected to two pressing parts 16, and the two pressing parts 16 are symmetrically arranged along the axis of the pressing part 14. A retracting and expanding cylinder 33 is vertically installed in the inner cavity of the pressing part 14, and the cylinder rod of the retracting and expanding cylinder 33 is fixedly connected to a double rack column 34. A gear part 35 is fixedly connected to the pressing part 16. The gear part 35 is coaxial with the rotation fulcrum of the pressing part 16 on the pressing part 14. The two gear parts 35 are respectively meshed with the racks on both sides of the double rack column 34, and the cylinder rod of the retracting and expanding cylinder 33 is extended and retracted, thereby driving The movable double rack column 34 performs linear motion along the axial direction of the pressing portion 14, and then meshes with the two gear portions 35 through the rack portions on both sides of the double rack column 34, thereby driving the pressing portion 16 to rotate along the rotation fulcrum of the pressing portion 14. Since the two gear portions 35 are respectively located on the opposite sides of the double rack column 34, the two gear portions 35 can rotate synchronously in opposite directions when meshing with the rack portions on the double rack column 34, thereby driving the two pressing portions 16 to expand or retract. The top surface of the machine base 1 is horizontally fixed with an annular seat 2 through a plurality of columns, and a profiling portion 24 is fixedly connected to the top surface of the annular seat 2. The profiling portion 24 includes two downwardly curved concave sections and two upward convex sections. Two mounting columns 28 are fixedly connected to the bottom of the rotating seat 3. The lower end of the mounting column 28 is rotatably embedded with a ball 27. The ball 27 is in rolling contact with the upward side of the profiling portion 24. The two concave sections of the profiling portion 24 match the lower line contour of the vertical pipe and horizontal pipe intersection line of the three-way pipe joint 5, and the two convex sections match the upper line contour of the vertical pipe and horizontal pipe intersection line of the three-way pipe joint 5. In this way, when the driving shaft 25 rotates, the vertical pipe of the three-way pipe joint 5 is pressed by the pressing portion 14. The rotating seat 3 and the limiting seat 4 are rotated synchronously, thereby driving the three-way pipe joint 5 to rotate, and the rotating sleeve 12 is rotatably connected to the mounting ring 30, so that the rotating sleeve 12 also rotates, and the ball 27 rotates along with the rotating seat 3, so that the ball 27 rolls alternately on the concave section and the convex section of the contoured portion 24. When the ball 27 rolls to the concave section surface, the elastic resisting force generated by the return spring 13 on the pressing portion 14 will drive the pressing portion 14 to move downward, and the intersection line position of the welding gun 6 and the three-way pipe joint 5 will move relative to each other, so that the welding trajectory of the welding gun 6 matches the intersection line.

[0031] The working principle of this embodiment is as follows: Place the transverse tube of the three-way pipe joint 5 in the transverse tube placement groove, and then vertically clamp the vertical tube of the three-way pipe joint 5 in the opening of the transverse tube, and then start the lifting cylinder 9, the cylinder rod of the lifting cylinder 9 extends, and then drives the lifting plate 11 to move downward. When the lifting plate 11 moves downward, it drives the welding gun 6 and the pressing part 14 to move downward. In the initial state, the cylinder rod of the retracting and expanding cylinder 33 is in a retracted state, so that the two pressing parts 16 are in a retracted state, and the two pressing parts 16 can penetrate into the vertical tube of the three-way pipe joint 5 when the pressing part 14 moves downward, and will not contact the pipe wall of the vertical tube. When the lower end face of the pressing part 14 abuts against the upper end face of the vertical tube, start the retracting and expanding cylinder 33 again, and the retracting and expanding cylinder 33 is opened. The cylinder rod of the cylinder 33 is extended, so that the double rack column 34 moves downward along the axial direction of the pressing part 14, and the rack parts on both sides of the double rack column 34 are respectively meshed with the two gear parts 35, so that the pressing part 16 can be driven to rotate along the rotation fulcrum of the pressing part 14. Since the two gear parts 35 are respectively located on the opposite sides of the double rack column 34, the two gear parts 35 can rotate synchronously in the opposite direction when meshing with the rack parts on the double rack column 34, so that the two pressing parts 16 rotate toward the radial outside of the pressing part 14, so that the pressing part 16 presses against the pipe wall of the vertical pipe of the three-way pipe joint 5, thereby supporting and limiting the vertical pipe, and preventing the vertical pipe from being separated from the horizontal pipe; Then, the driving cylinder 21 is started, and the cylinder rod of the driving cylinder 21 is extended, so that the welding gun 6 moves downward, and the welding head of the welding gun 6 is aligned with the intersection line of the vertical pipe and the horizontal pipe of the three-way pipe joint 5, and then the reduction motor 22 is started. After the reduction motor 22 is started, the driving shaft 25 is driven to rotate. When the driving shaft 25 rotates, the pressing part 14 generates a downward elastic pressing force on the vertical pipe of the three-way pipe joint 5, so that the rotating seat 3 and the limiting seat 4 can be rotated synchronously, thereby driving the three-way pipe joint 5 to rotate, and the welding gun 6 is started synchronously, so that the welding gun 6 presses the three-way pipe The vertical pipe and the horizontal pipe of the joint 5 are welded at the intersection line position. In addition, since the rotating sleeve 12 is rotatably connected to the mounting ring 30, the rotating sleeve 12 also rotates, and the ball 27 rotates along with the rotation of the rotating seat 3, so that the ball 27 alternately rolls on the concave section and the convex section surface of the contouring portion 24. When the ball 27 rolls to the concave section surface, the elastic resisting force generated by the return spring 13 on the pressing portion 14 drives the pressing portion 14 to move downward, and the intersection line position of the welding gun 6 and the three-way pipe joint 5 is relatively moved, so that the welding trajectory of the welding gun 6 matches the intersection line. After welding is completed, first stop the operation of the reduction motor 22 to make the drive shaft 25 stop rotating. Then start the drive cylinder 21. The cylinder rod of the drive cylinder 21 retracts, so that the drive cylinder 21 can drive the sliding block to slide on the surface of the second adjusting seat 15, making the welding gun 6 away from the three-way pipe joint 5. Then start the lifting cylinder 9. The cylinder rod of the lifting cylinder 9 retracts, driving the lifting plate 11 to move upward and reset. During the reset process, do not start the expansion and contraction cylinder 33 first. That is, after welding is completed, the two abutting parts 16 still maintain the state of abutting against the inner wall of the vertical pipe of the three-way pipe joint 5. In this way, when the pressing part 14 moves upward to reset, through the abutting of the abutting part 16 against the inner wall of the vertical pipe of the three-way pipe joint 5, the welded three-way pipe joint 5 is taken away from the limit seat 4, so that the horizontal pipe of the three-way pipe joint 5 is separated from the horizontal pipe placement groove and moves above the limit seat 4. When the three-way pipe joint 5 moves above the limit seat 4, a worker holds the horizontal pipe or the vertical pipe of the three-way pipe joint 5 with one hand, and then starts the expansion and contraction cylinder 33. The cylinder rod of the expansion and contraction cylinder 33 retracts, driving the double-rack column 34 to move upward, that is, making the double-rack column 34 move towards the inner side of the pressing part 14. In this way, the two rack parts on the double-rack column 34 are respectively meshed with the two gear parts 35 in the reverse direction, so that the gear part 35 drives the abutting part 16 to swing, making the two abutting parts 16 in a closed state, so that the abutting part 16 is separated from the state of abutting against the inner wall of the vertical pipe. At this time, the three-way pipe joint 5 can be taken off more easily; In addition, when fine-tuning the welding position of the welding gun 6, first rotate the first adjusting screw rod 18 on the first adjusting seat 7, so that the first adjusting screw rod 18 and the adjusting block are screwed together, driving the adjusting block to move along the axis of the first adjusting screw rod 18. Rotate the second adjusting screw rod 20, so that the second adjusting screw rod 20 is screwed with the adjusting block, driving the second adjusting seat 15 to move along the axis of the second adjusting screw rod 20, and the movement direction is perpendicular to the movement direction of the adjusting block on the first adjusting seat 7. Thus, the position of the welding gun 6 in two orthogonal directions can be adjusted to realize the fine-tuning of the welding position of the welding gun 6. This fine-tuning link is mainly used to ensure that the end of the welding head of the welding gun 6 can contact the intersection line part of the vertical pipe and the horizontal pipe of the three-way pipe joint 5.

[0032] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A production device for a three-way pipe joint, characterized in that, Including: A machine base (1) and two struts (17) installed on the top of the machine base (1), and a top plate (10) is installed at the upper ends of the two struts (17); A lifting plate (11) vertically slidably connected to the top plate (10), and a welding mechanism is installed on one side of the lifting plate (11); A drive shaft (25) vertically rotatably connected to the machine base (1), a rotating seat (3) is vertically slidably connected to the upper end of the drive shaft (25), a limiting seat (4) is fixedly connected to the top of the rotating seat (3), and a steel pipe horizontal placement groove is formed on the top surface of the limiting seat (4); An elastic pressing mechanism arranged on the lifting plate (11), and the elastic pressing mechanism is located above the limiting seat (4); A profiling mechanism arranged on the machine base (1), and the profiling mechanism is used to drive the limiting seat (4) to move vertically when the drive shaft (25) rotates.

2. The production device of a tee joint according to claim 1, characterized in that, Two guide columns (8) are vertically and fixedly connected to both ends of the lifting plate (11), the guide columns (8) slidably penetrate through the top plate (10), and a lifting cylinder (9) is vertically installed on the top plate (10), and the end of the cylinder rod of the lifting cylinder (9) is connected to the lifting plate (11).

3. The production device of a tee joint according to claim 1, characterized in that, The welding mechanism includes a mounting plate (19) installed on the lifting plate (11), an adjusting component is installed on the mounting plate (19), and a welding gun (6) is installed on the adjusting component.

4. The production device of a three-way pipe joint according to claim 3, characterized in that, The adjusting component includes a first adjusting seat (7) connected to the mounting plate (19), an adjusting block is in contact connection with the surface of the first adjusting seat (7), a second adjusting seat (15) is snap-fitted on the outer wall of the adjusting block, a first adjusting screw rod (18) is rotatably connected to the first adjusting seat (7), the first adjusting screw rod (18) is in threaded connection with the adjusting block, a sliding block is in contact connection with the surface of the second adjusting seat (15), a bracket (23) is installed on the sliding block, the welding gun (6) is installed at the lower end of the bracket (23), a second adjusting screw rod (20) is rotatably connected to the second adjusting seat (15), the second adjusting screw rod (20) is in threaded connection with the adjusting block, and the axial directions of the first adjusting screw rod (18) and the second adjusting screw rod (20) are perpendicular to each other.

5. The production device of a tee joint according to claim 4, characterized in that, A driving cylinder (21) is installed on the upward-facing surface of the second adjusting seat (15), and the end of the cylinder rod of the driving cylinder (21) is connected to the sliding block.

6. The production device of a three-way pipe joint according to claim 1, characterized in that, The elastic pressing mechanism includes a mounting ring (30) connected to the bottom surface of the lifting plate (11), a rotating sleeve (12) is rotatably connected to the mounting ring (30), a cylindrical part (31) is telescopically inserted into the rotating sleeve (12), a pressing part (14) is coaxially fixedly connected to the end of the cylindrical part (31) passing through the rotating sleeve (12), an elastic structure is connected between the cylindrical part (31) and the rotating sleeve (12), and the elastic structure imparts potential energy to the cylindrical part (31) to move downward.

7. The production device of a tee joint according to claim 6, characterized in that, The elastic structure includes a return spring (13) wound around the periphery of the cylindrical portion (31). The two ends of the return spring (13) in the elastic force direction elastically abut against the end face of the pressing portion (14) and the end face of the rotating sleeve (12) respectively. A limit pin (36) is fixedly connected to one end of the cylindrical portion (31) that penetrates into the rotating sleeve (12). A kidney-shaped hole (32) for the free passage of the limit pin (36) is formed in the periphery of the rotating sleeve (12).

8. The production device of a tee joint according to claim 6, characterized in that Two tightening portions (16) are rotatably connected to the lower end of the pressing portion (14). The two tightening portions (16) are symmetrically arranged along the axis of the pressing portion (14). A retracting and expanding structure is provided in the pressing portion (14), and the retracting and expanding structure is used to drive the two tightening portions (16) to rotate around the rotation fulcrum of the pressing portion (14).

9. The production device of a tee joint according to claim 8, characterized in that, The retracting and expanding structure includes a retracting and expanding cylinder (33) vertically installed in the inner cavity of the pressing portion (14). A double-rack column (34) is fixedly connected to the cylinder rod of the retracting and expanding cylinder (33). A gear portion (35) is fixedly connected to the tightening portion (16). The gear portion (35) and the rotation fulcrum of the tightening portion (16) on the pressing portion (14) are coaxial. The two gear portions (35) are respectively meshed with the two side racks on the double-rack column (34).

10. The production device of a three-way pipe joint according to claim 1, characterized in that, The profiling mechanism includes a telescopic column (29) fixedly connected to the bottom surface of the rotating seat (3). A telescopic sleeve (26) is coaxially fixedly connected to the top end of the driving shaft (25). A sliding hole for the free passage of the telescopic column (29) is formed in the end face of the telescopic sleeve (26). The top surface of the machine base (1) is horizontally fixedly connected with an annular seat (2) through a plurality of columns. A profiling portion (24) is fixedly connected to the top surface of the annular seat (2). The profiling portion (24) includes two downwardly curved concave segments and two upwardly convex segments. Two mounting columns (28) are fixedly connected to the bottom of the rotating seat (3). A ball (27) is rotatably embedded at the lower end of the mounting column (28). The ball (27) is in rolling contact with the upward-facing surface of the profiling portion (24).

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