Inner flanging welding machine

Abstract

The invention belongs to the technical field of welding machines, and discloses an inner flanging welding machine which comprises a workbench and a welding mechanism, the top of the workbench is fixedly connected with adjusting assemblies which are symmetrically distributed, the top of the workbench is rotatably provided with a positioning sleeve, and the positioning sleeve is internally provided with a buffer type lifting part and an assembly guide part. After the inner container is placed and positioned on the two adjusting assemblies, elastic potential energy is stored after the assembling guide part is compressed in advance, and positioning treatment that one end of the inner container abuts against the lower portion of the limiting baffle is matched, so that when the adjusting assemblies control the inner container to rotate, the through hole of the inner flanging rotates to be aligned with the assembling guide part, and the assembling guide part is assembled. And the inner container is pushed to move downwards to be accurately sleeved with the matched positioning tubular column by matching with the top pushing mechanism, so that the deflection position of the inner container is prevented from being manually and repeatedly adjusted, automatic positioning assembly is realized, welding treatment after quick positioning assembly is realized, and the use effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding machines, and specifically relates to an inward flanging welding machine. Background Art

[0002] The inner tank of a water heater is usually made of stainless steel. It can remain stable at high temperatures, will not release harmful substances, and ensures the cleanliness and safety of water quality. For the inward flanging welding of a stainless steel inner tank, it is usually necessary to sleeved a positioning post in the through hole of the inward flange and cooperate with a welding machine to achieve welded connection.

[0003] In the existing welding machines, when welding and connecting the inner flange of the inner tank and the positioning post, it is usually necessary to first fix multiple groups of positioning posts in the fixing grooves, cooperate with the inner tank at the top, make the inner flange of the inner tank be positioned and sleeved with the positioning post, and perform welding treatment for their connection after sleeving. However, when actually completing the sleeving of the through hole of the inner flange of the inner tank and the positioning post, manual treatment is required, and calibration sleeving is achieved by the observation of workers. And subsequent welding is carried out after sleeving. For the positioning sleeving treatment before actual welding, it is difficult to achieve quick treatment. Manually swinging the inner tank and calibrating it is time-consuming and laborious, and the calibration accuracy is low. For the welding treatment of multiple groups of inner tanks, the sleeving operations after repeated manual positioning and alignment are rather troublesome, and the comprehensive batch welding efficiency is low, and the use effect is not good. Summary of the Invention

[0004] The purpose of the present invention is to provide an inward flanging welding machine to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An inward flanging welding machine, including a workbench and a welding mechanism. Symmetrically distributed adjustment components are fixedly connected to the top of the workbench. A positioning kit is rotatably installed on the top of the workbench. A buffer type lifting part and an assembly guiding part are respectively arranged inside the positioning kit. The assembly guiding part is elastically clamped with the buffer type lifting part. One end of the buffer type lifting part is fixed in the positioning kit. Swing processing parts are installed on both sides of the assembly guiding part. A rotation component and a suction component are respectively arranged inside the workbench. The rotation component controls the rotation of the positioning kit. The suction component controls the swing of the swing processing parts through the positioning kit. A top pushing mechanism is fixedly arranged on the top of the workbench. A positioning pipe column is sleeved inside the positioning kit, and the positioning pipe column is sleeved outside the assembly guiding part. An inner tank is arranged on the top of the two adjustment components. A limit baffle is fixedly connected to the top of the workbench.

[0006] Preferably, inward flanges are arrayed on the outer side surface of the inner tank, and the size of the positioning pipe column is adapted to the inner diameter of the inward flange.

[0007] Preferably, the adjustment component includes a mounting bracket, an adjustment roller, a sleeve rod, a sleeve and a first spring. The sleeve is fixedly connected to the top of the workbench. One end of the sleeve rod is movably sleeved in the sleeve, and the other end is fixedly connected to the mounting bracket. The adjustment roller is rotatably mounted in the mounting bracket. A rotation motor is provided at one end of the mounting bracket to control the rotation of the adjustment roller. One end of the first spring is fixedly connected to the inner end of the sleeve rod, and the other end of the first spring is fixed to the top surface of the workbench. The first spring is located in the sleeve. The rotation directions of the adjustment rollers in the two groups of adjustment components are the same and synchronous, and control the rotation of the inner tank.

[0008] Preferably, the positioning kit includes a rotating column, a reserved cavity, a mounting cavity, a sleeve hole and a communication port. The rotating column is rotatably mounted on the top of the workbench through an external bearing. The reserved cavity is opened at the top of the rotating column. The mounting cavity is opened at the bottom of the rotating column. The sleeve hole is opened inside the rotating column. Both ends of the sleeve hole are communicated with the reserved cavity and the mounting cavity respectively. The communication port is opened on both sides of the rotating column and is communicated with the mounting cavity.

[0009] Preferably, the buffer lifting part includes an electric push rod, a clamping plate and a second spring. One end of the electric push rod is fixed in the mounting cavity and seals the bottom of the mounting cavity. The clamping plate is fixedly connected to the movable end of the electric push rod. The second spring is fixedly connected to the top of the clamping plate.

[0010] Preferably, the assembly guiding part includes a guide rod, a suction cavity, a bottom port, a socket cavity, a side port and a mounting side groove. The guide rod is movably sleeved in the sleeve hole. The bottom port is opened at the bottom of the guide rod. The suction cavity and the socket cavity are both opened inside the guide rod and communicate with each other. The socket cavity is communicated with the bottom port. The side port is opened on the outer side surface of the guide rod and is communicated with the socket cavity. The mounting side grooves are opened on both sides of the top of the guide rod. The suction cavity is communicated with the suction component through the socket cavity, the side port, the sleeve hole, the mounting cavity and the communication port. The clamping plate is movably sleeved in the socket cavity. The other end of the second spring is in the socket cavity and is fixedly connected to the guide rod.

[0011] Preferably, the swing processing part includes a movable block, a movable rod, a connecting rope, a fixed shaft and a torsion spring. The fixed shaft is fixed in the mounting side groove. The movable block is movably sleeved in the mounting side groove and rotatably sleeved on the outer surface of the fixed shaft. One end of the movable rod is movably sleeved in the suction cavity, and the other end is fixedly connected to the connecting rope. The other end of the connecting rope is fixedly connected to the movable block. The torsion spring is fixedly connected between the movable block and the inner wall of the mounting side groove. The movable blocks are symmetrically distributed on both sides of the guide rod.

[0012] Preferably, the rotating assembly includes a driving motor, a first gear, and a second gear. The second gear is fixedly sleeved on the outer surface of each rotating column and meshes with each other. The output shaft of the driving motor is fixedly sleeved with the first gear, and the first gear is meshed and connected with the second gear. The suction assembly includes a suction pump and a connecting frame. The connecting frame is fixed inside the workbench. The bottom of the connecting frame is rotatably sleeved with the rotating column. The communication port is located in the connecting frame. The suction end of the suction pump is communicated with the connecting frame.

[0013] Preferably, the welding mechanism includes an assembly arm, a power motor, a mounting disc, and a welding end. The assembly arm is fixed on the workbench. The power motor is fixed on the assembly arm. The mounting disc is fixedly connected to the output shaft of the power motor. The welding end is eccentrically arranged on the mounting disc.

[0014] Preferably, the top pushing mechanism includes a bracket, a hydraulic push rod, and a push plate. The bracket is fixed on the top of the workbench. One end of the hydraulic push rod is fixed on the bracket, and the movable end is fixedly connected to the push plate.

[0015] The beneficial effects of the present invention are as follows: 1. By using the adjustment assembly, the top pushing mechanism, the positioning kit, the buffer type lifting part, and the assembly guiding part, after the inner liner is placed and positioned between the two adjustment assemblies, and the elastic potential energy is stored after pre-compressing the assembly guiding part, and in cooperation with the positioning process when one end of the inner liner abuts against the limit baffle, when the through hole of the inner flanging rotates to align with the assembly guiding part under the control of the adjustment assembly, the elastic reset ability of the assembly guiding part is utilized to quickly self-socket and position, and in cooperation with the top pushing mechanism to push the inner liner downward to accurately socket with the matching positioning pipe column, avoiding manual repeated adjustment of the deflection position of the inner liner, realizing automatic positioning and assembly, and realizing the welding process after quick positioning and assembly, with good use effect.

[0016] 2. By using the assembly guiding part and the buffer type lifting part again, after the socket assembly of the inner liner and the positioning pipe column is completed, the assembly guiding part moves downward and is hidden and sleeved inside the positioning pipe column, and in cooperation with the suction effect of the suction assembly, the suction effect controls the swinging and expanding of the communicating swinging part in the positioning pipe column to complete the tensioning and fixing from the inside of the positioning pipe column. After the socket of the positioning pipe column and the inner flanging is completed, the assembly guiding part is used again to complete the clamping and fixing of the positioning pipe column, avoiding offset and shaking during welding, and completing stable welding while quickly fixing.

[0017] 3. The present invention reuses the assembly guide part and the swing processing part. After completing the preliminary positioning, the synchronous action of the suction component and the rotating component is coordinated to realize that the swing processing part swings open and rotates at the same time. After being sleeved with the inner flange, the movable block is swung open and abuts against the inner wall of the top end of the inner flange. During the rotation process, the inner wall of the top end of the inner flange is rotated and cleaned to remove attachments and granular debris to avoid affecting the subsequent sleeve connection with the positioning pipe column, and the grinding process before welding is completed. At the same time, the inner flange is corrected during the rotation process to avoid deformation and bending of the inner wall of the inner flange, thereby improving the structural shape stability of the inner flange and further improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention; Figure 3 It is a top schematic diagram of the workbench of the present invention; Figure 4 It is a schematic diagram of assembling the positioning kit, the rotating assembly and the suction assembly of the present invention; Figure 5 is a schematic diagram of a connection frame of the present invention; Figure 6 It is a cross-sectional schematic diagram of the positioning kit and the assembly guide of the present invention; Figure 7 is a cross-sectional schematic diagram of the positioning kit of the present invention; Figure 8 It is an exploded schematic diagram of the buffer type lifting assembly and the assembly guide of the present invention; Figure 9 It is a cross-sectional schematic diagram of the assembly guide portion of the present invention; Figure 10 It is a schematic diagram of the swing processing part of the present invention; Figure 11 is a schematic diagram of the welding mechanism of the present invention; Figure 12 A schematic diagram of the adjustment components of the present invention.

[0019] In the figure: 1, workbench; 2, welding mechanism; 21, assembly arm; 22, power motor; 23, mounting disc; 24, welding end; 3, top pushing mechanism; 4, adjustment component; 41, mounting frame; 42, adjustment roller; 43, sleeve rod; 44, sleeve; 45, first spring; 5, inner tank; 6, inner flanging; 7, positioning kit; 71, rotating column; 72, reserved cavity; 73, mounting cavity; 74, sleeve hole; 75, communication port; 8, buffer type lifting part; 81, electric push rod; 82, clamping plate; 83, second spring; 9, assembly guiding part; 91, guide rod; 92, suction cavity; 93, bottom port; 94, socket cavity; 95, side port; 96, mounting side groove; 10, swing processing part; 101, movable block; 102, movable rod; 103, connecting rope; 104, fixed shaft; 105, torsion spring; 11, positioning pipe column; 12, limit baffle; 13, rotating component; 131, driving motor; 132, first gear; 133, second gear; 14, suction component; 141, suction pump; 142, communication frame. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 12 shown, the embodiment of the present invention provides an inner flanging welding machine, including a workbench 1 and a welding mechanism 2. Symmetrically distributed adjustment components 4 are fixedly connected to the top of the workbench 1. A positioning kit 7 is rotatably installed on the top of the workbench 1. A buffer type lifting part 8 and an assembly guiding part 9 are respectively arranged inside the positioning kit 7. The assembly guiding part 9 is elastically clamped with the buffer type lifting part 8. One end of the buffer type lifting part 8 is fixed in the positioning kit 7. Swing processing parts 10 are installed on both sides of the assembly guiding part 9. A rotating component 13 and a suction component 14 are respectively arranged inside the workbench 1. The rotating component 13 controls the rotation of the positioning kit 7. The suction component 14 controls the swing of the swing processing part 10 through the positioning kit 7. A top pushing mechanism 3 is fixedly arranged on the top of the workbench 1. A positioning pipe column 11 is sleeved inside the positioning kit 7, and the positioning pipe column 11 is sleeved outside the assembly guiding part 9. An inner tank 5 is arranged on the top of the two adjustment components 4. A limit baffle 12 is fixedly connected to the top of the workbench 1.

[0022] Embodiment 1: During the welding process, first, the positioning pipe columns 11 to be welded are sleeved inside the positioning kit 7 one by one, and are sleeved outside the assembly guiding part 9. Initially, the upper end of the assembly guiding part 9 is located above the positioning pipe columns 11. Subsequently, the inner tank 5 to be welded is sleeved along one end of the welding mechanism 2 and is kept above the two-side adjustment components 4, so that one end of the inner tank 5 abuts against the limit baffle 12. The top pushing mechanism 3 is started to push the inner tank 5 downward, and the mounting frame 41 of the adjustment component 4 is compressed and moved downward, so that the inner tank 5 compresses the assembly guiding part 9 downward. The assembly guiding part 9 compresses the second spring 83 downward and abuts against the clamping plate 82, and the bottom of the inner tank 5 contacts the assembly guiding part 9. Subsequently, the adjustment component 4 is started, so that the internal adjustment roller 42 rotates and drives the inner tank 5 at the top to rotate. When the through hole of the inner flange 6 of the inner tank 5 rotates to be located below, the downward-pressed assembly guiding part 9 automatically moves upward under the elastic action of the second spring 83 and is instantaneously sleeved into the inner flange 6. When the top end of the assembly guiding part 9 is sleeved in, the positioning is completed. The top pushing mechanism 3 is started. As the inner tank 5 moves downward, the first spring 45 in the adjustment component 4 is further compressed, so that the through hole of the inner flange 6 below the inner tank 5 is directly sleeved outside the positioning pipe column 11, and the positioning and assembly are completed. Subsequently, the buffer lifting part 8 is started to drive the assembly guiding part 9 to move downward and hide it inside the positioning pipe column 11. The suction component 14 is started. The suction component 14 sucks the gas in the communication frame 142, inhales the gas in the rotating column 71 through the communication port 75, and along the installation cavity 73, the sleeve hole 74, the side port 95, the sleeve cavity 94, and sucks the air inside the suction cavity 92. Under the negative pressure effect, the movable rod 102 in the swing processing part 10 moves downward, pulls the connecting rope 103, and drives the movable blocks 101 on both sides to swing around the fixed shaft 104 and be tensioned and fixed in the positioning pipe column 11. After the through hole of the positioning pipe column 11 and the inner flange 6 are sleeved, and the positioning pipe column 11 is clamped at the same time. The welding mechanism 2 is started to drive the welding end 24 to move downward and approach the contact ring edge of the inner flange 6 and the positioning pipe column 11. The power motor 22 is started to drive the eccentrically arranged welding end 24 to weld around the contact ring edge of the inner flange 6 and the positioning pipe column 11, and the welding process is completed.

[0023] First, by utilizing the adjustment component 4, the top pushing mechanism 3, the positioning kit 7, the buffer lifting part 8, and the assembly guiding part 9, after the inner tank 5 is placed and positioned between two groups of adjustment components 4, and after pre-compressing the assembly guiding part 9 to store elastic potential energy, in cooperation with the positioning process where one end of the inner tank 5 abuts against the limit baffle 12, when the adjustment component 4 controls the rotation of the inner tank 5 and the through hole of the inner flanging 6 rotates to align with the assembly guiding part 9, by utilizing the elastic reset ability of the assembly guiding part 9, it can quickly self-socket and position itself, and in cooperation with the top pushing mechanism 3 pushing the inner tank 5 downward to accurately socket with the matching positioning pipe column 11, it avoids manual repeated adjustment of the deflection position of the inner tank 5, realizes automatic positioning and assembly, and realizes the welding process after quick positioning and assembly, with good use effect.

[0024] In addition, by utilizing the assembly guiding part 9 and the buffer lifting part 8 again, after the socket assembly of the inner tank 5 and the positioning pipe column 11 is completed, the assembly guiding part 9 moves downward and is hidden inside the positioning pipe column 11, and in cooperation with the suction effect of the suction component 14, the swing processing part 10 controlled by the suction effect swings and expands in the positioning pipe column 11 to complete the tensioning and fixing from the inside of the positioning pipe column 11. After the socketing of the positioning pipe column 11 and the inner flanging 6 is completed, the assembly guiding part 9 is utilized again to complete the clamping and fixing of the positioning pipe column 11, avoiding offset and shaking during welding, and while quickly fixing, stable welding is completed.

[0025] Embodiment 2: After completing the socket positioning of the assembly guiding part 9 and the through hole of the inner flanging 6, first start the suction component 14 to suck the air inside the assembly guiding part 9, so that the movable block 101 in the swing processing part 10 swings open, and the outer side of the movable block 101 contacts the upper end of the through hole of the inner flanging 6 after swinging. Start the rotation component 13, the driving motor 131 drives the first gear 132 to rotate, so that the second gear 133 rotates, and multiple rotating columns 71 rotate, driving the internal assembly guiding part 9 to rotate, thereby making the movable block 101 in the swing processing part 10 rotate, and simultaneously completing the rotary grinding of the upper end of the through hole of the inner flanging 6 after positioning and correcting the shape of the through hole of the inner flanging 6. Subsequently, reset the swing processing part 10, and press and move the inner tank 5 downward to complete the good socketing with the positioning pipe column 11, and perform the subsequent welding process.

[0026] First, by reusing the assembly guide part 9 and the swing processing part 10, after completing the preliminary positioning, cooperate with the synchronous action of the suction component 14 and the rotating component 13 to realize that the swing processing part 10 is swung open and rotated at the same time. After being sleeved with the inner flange 6, the movable block 101 is swung open and abutted against the inner wall at the top end of the inner flange 6. During the rotation process, the inner wall at the top end of the inner flange 6 is rotated and cleaned to remove attachments and granular debris to avoid affecting the subsequent sleeve connection with the positioning pipe column 11, and the grinding process before welding is completed. At the same time, the inner flange 6 is corrected during the rotation process to avoid deformation and bending of the inner wall of the inner flange 6, thereby improving the structural shape stability of the inner flange 6 and further improving the welding quality.

[0027] The outer side surface of the inner liner 5 is provided with inner flanges 6 in an array, and the size of the positioning column 11 is adapted to the inner diameter of the inner flanges 6 .

[0028] By matching the size of the inner flange 6 with the positioning column 11, stable assembly welding is completed.

[0029] Among them, the adjustment component 4 includes a mounting frame 41, an adjustment roller 42, a sleeve rod 43, a sleeve 44 and a spring 45. The sleeve 44 is fixedly connected to the top of the workbench 1. One end of the sleeve rod 43 is movably sleeved in the sleeve 44, and the other end is fixedly connected to the mounting frame 41. The adjustment roller 42 is rotatably mounted in the mounting frame 41. A rotating motor is provided at one end of the mounting frame 41. The rotating motor controls the rotation of the adjustment roller 42. One end of the spring 45 is fixedly connected to the inner end of the sleeve rod 43, and the other end of the spring 45 is fixed to the top surface of the workbench 1. The spring 45 is located in the sleeve 44. The rotation directions of the adjustment rollers 42 in the two groups of adjustment components 4 are synchronized and the rotation of the inner liner 5 is controlled.

[0030] The adjustment component 4 realizes the rotation of the top inner liner 5 by rotating in the same direction. With the auxiliary positioning of the limit baffle 12, it is ensured that the top of the compressed assembly guide part 9 is located on the rotation path of the inner flange 6, thereby completing the quick positioning. The spring 45 adapts to the compression of the inner liner 5, completes the pre-compression processing of the assembly guide part 9, and allows the sleeve assembly with the positioning column 11 after moving down.

[0031] Among them, the positioning kit 7 includes a rotating column 71, a reserved cavity 72, an installation cavity 73, a sleeve hole 74 and a connecting port 75. The rotating column 71 is rotatably installed on the top of the workbench 1 through an external bearing. The reserved cavity 72 is opened at the top of the rotating column 71, the installation cavity 73 is opened at the bottom of the rotating column 71, the sleeve hole 74 is opened inside the rotating column 71, and the two ends of the sleeve hole 74 are respectively connected with the reserved cavity 72 and the installation cavity 73. The connecting port 75 is opened on both sides of the rotating column 71 and is connected with the installation cavity 73.

[0032] The positioning kit 7 completes the socketing of the positioning pipe column 11 to be welded, and cooperates with the reserved cavity 72 to complete the positioning socketing under size matching. At the same time, the positioning kit 7 can rotate, enabling subsequent rotational grinding. Moreover, the installation cavity 73, the socket hole 74, and the communication port 75 form an air passage, allowing the installation of the buffer lifting part 8 while also enabling the communication inside the assembly guiding part 9.

[0033] Among them, the buffer lifting part 8 includes an electric push rod 81, a clamping plate 82, and a second spring 83. One end of the electric push rod 81 is fixed in the installation cavity 73 and seals the bottom of the installation cavity 73. The clamping plate 82 is fixedly connected to the movable end of the electric push rod 81, and the second spring 83 is fixedly connected to the top of the clamping plate 82.

[0034] The initial compression of the assembly guiding part 9 is reserved by using the second spring 83, which is convenient for storing elastic potential energy, realizing rapid positioning, and can control the up and down position of the assembly guiding part 9 to switch different processing conditions.

[0035] Among them, the assembly guiding part 9 includes a guide rod 91, a suction cavity 92, a bottom port 93, a socketing cavity 94, a side port 95, and an installation side groove 96. The guide rod 91 is movably socketed in the socket hole 74. The bottom port 93 is opened at the bottom of the guide rod 91. Both the suction cavity 92 and the socketing cavity 94 are opened inside the guide rod 91 and communicate with each other. The socketing cavity 94 communicates with the bottom port 93. The side port 95 is opened on the outer side surface of the guide rod 91 and communicates with the socketing cavity 94. The installation side groove 96 is opened on both sides of the top of the guide rod 91. The suction cavity 92 communicates with the suction component 14 through the socketing cavity 94, the side port 95, the socket hole 74, the installation cavity 73, and the communication port 75. The clamping plate 82 is movably socketed in the socketing cavity 94. The other end of the second spring 83 is in the socketing cavity 94 and is fixedly connected to the guide rod 91. The swinging processing part 10 includes a movable block 101, a movable rod 102, a connecting rope 103, a fixed shaft 104, and a torsion spring 105. The fixed shaft 104 is fixed in the installation side groove 96. The movable block 101 is movably socketed in the installation side groove 96 and rotatably socketed on the outer surface of the fixed shaft 104. One end of the movable rod 102 is movably socketed in the suction cavity 92, and the other end is fixedly connected to the connecting rope 103. The other end of the connecting rope 103 is fixedly connected to the movable block 101. The torsion spring 105 is fixedly connected between the movable block 101 and the inner wall of the installation side groove 96. The movable blocks 101 are symmetrically distributed on both sides of the guide rod 91.

[0036] The assembly guiding part 9 realizes positioning socketing and cooperates with the swinging processing part 10. After the up and down position is adjusted, grinding processing and clamping processing are respectively realized. The assembly guiding part 9 cooperates with the internal cavity to realize the negative pressure control of the swinging processing part 10, controlling the swinging of the swinging processing part 10. The swinging processing part 10 can be quickly reset through the torsion spring 105. The swinging actions of the swinging processing part 10 at different positions can respectively realize directional grinding and welding auxiliary fixing processing, which is convenient to use.

[0037] Among them, the rotating assembly 13 includes a driving motor 131, a first gear 132 and a second gear 133. The second gear 133 is fixedly sleeved on the outer surface of each rotating column 71 and meshes with each other. The output shaft of the driving motor 131 is fixedly sleeved with the first gear 132, and the first gear 132 is meshed and connected with the second gear 133. The suction assembly 14 includes a suction pump 141 and a connecting frame 142. The connecting frame 142 is fixed inside the workbench 1. The bottom of the connecting frame 142 is rotatably sleeved with the rotating column 71. The communication port 75 is located in the connecting frame 142. The suction end of the suction pump 141 is communicated with the connecting frame 142.

[0038] The rotating assembly 13 starts during grinding to provide rotational force. The suction assembly 14 sucks the air in the assembly guiding part 9 to control the swing processing part 10 and realize the swing control of the swing processing part 10.

[0039] Among them, the welding mechanism 2 includes an assembly arm 21, a power motor 22, a mounting disc 23 and a welding end 24. The assembly arm 21 is fixed on the workbench 1. The power motor 22 is fixed on the assembly arm 21. The mounting disc 23 is fixedly connected to the output shaft of the power motor 22. The welding end 24 is eccentrically arranged on the mounting disc 23.

[0040] The welding mechanism 2 is an existing mechanism, which cooperates with the power motor 22 and the welding end 24 to complete rotational welding and complete circumferential welding around the contact annular edge of the inner flanging 6 and the positioning pipe column 11.

[0041] Among them, the top pushing mechanism 3 includes a bracket, a hydraulic push rod and a push plate. The bracket is fixed on the top of the workbench 1. One end of the hydraulic push rod is fixed on the bracket, and the movable end is fixedly connected with the push plate.

[0042] The top pushing mechanism 3 actively controls the downward movement of the inner tank 5 to maintain relative stability and movement control.

[0043] Working principle and usage process of the present invention: During welding treatment, the positioning pipe columns 11 to be welded are sleeved inside the positioning kit 7 one by one, and are sleeved outside the assembly guiding part 9. Initially, the upper end of the assembly guiding part 9 is located above the positioning pipe columns 11. Subsequently, the inner liner 5 to be welded is sleeved along one end of the welding mechanism 2 and is kept above the two-sided adjustment components 4 on both sides, so that one end of the inner liner 5 abuts against the limit baffle 12. Start the top pushing mechanism 3 to push the inner liner 5 downward and compress the mounting frame 41 of the adjustment component 4 to move downward, so that the inner liner 5 compresses the assembly guiding part 9 downward. The assembly guiding part 9 compresses the second spring 83 downward and abuts against the clamping plate 82, and the bottom of the inner liner 5 contacts the assembly guiding part 9. Subsequently, start the adjustment component 4 to make the internal adjustment roller 42 rotate and drive the inner liner 5 at the top to rotate. When the through hole of the inner flanging 6 of the inner liner 5 rotates to the lower position, the downward-pressed assembly guiding part 9 automatically moves upward under the elastic action of the second spring 83 and is instantly sleeved into the inner flanging 6. When the top end of the assembly guiding part 9 is sleeved in, the positioning is completed. Start the top pushing mechanism 3. As the inner liner 5 moves downward, the first spring 45 in the adjustment component 4 is further compressed, so that the through hole of the inner flanging 6 below the inner liner 5 is directly sleeved outside the positioning pipe column 11 to complete the positioning and assembly. Subsequently, start the buffer lifting part 8 to drive the assembly guiding part 9 to move downward and hide it inside the positioning pipe column 11. Start the suction component 14. The suction component 14 sucks the gas in the communication frame 142, inhales the gas in the rotating column 71 through the communication port 75, and along the installation cavity 73, the sleeve hole 74, the side port 95, the socket cavity 94, and sucks the air inside the suction cavity 92. Under the negative pressure effect, the movable rod 102 in the swing processing part 10 moves downward, pulls the connecting rope 103, and drives the movable blocks 101 on both sides to swing around the fixed shaft 104 and be tensioned and fixed in the positioning pipe column 11. After the through hole of the positioning pipe column 11 and the inner flanging 6 are sleeved, and at the same time, the positioning pipe column 11 is clamped. Start the welding mechanism 2 to drive the welding end 24 to move downward and approach the contact ring edge of the inner flanging 6 and the positioning pipe column 11. Start the power motor 22 to drive the eccentrically arranged welding end 24 to weld around the contact ring edge of the inner flanging 6 and the positioning pipe column 11 to complete the welding treatment. After the through hole of the assembly guiding part 9 and the inner flanging 6 are sleeved and positioned, first start the suction component 14 to suck the air inside the assembly guiding part 9, so that the movable block 101 in the swing processing part 10 swings open, and the outer side of the movable block 101 contacts the upper end of the through hole of the inner flanging 6 after swinging. Start the rotating component 13. The driving motor 131 drives the first gear 132 to rotate, so that the second gear 133 rotates, and multiple rotating columns 71 rotate, driving the internal assembly guiding part 9 to rotate, so that the movable block 101 in the swing processing part 10 rotates, and the upper end of the through hole of the inner flanging 6 is rotationally polished while positioning, and at the same time, the shape of the through hole of the inner flanging 6 is corrected. Subsequently, reset the swing processing part 10 and press the inner liner 5 downward to complete the good sleeving with the positioning pipe column 11.And subsequent welding treatment is carried out.,

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inner flanging welding machine, comprising a workbench (1) and a welding mechanism (2), characterized in that: The top of the workbench (1) is fixedly connected to symmetrically distributed adjustment components (4); a positioning kit (7) is rotatably mounted on the top of the workbench (1); a buffered lifting portion (8) and an assembly guide portion (9) are respectively provided inside the positioning kit (7); the assembly guide portion (9) is elastically engaged with the buffered lifting portion (8); one end of the buffered lifting portion (8) is fixed in the positioning kit (7); swing processing portions (10) are installed on both sides of the assembly guide portion (9); and the rotating components (10) are respectively provided inside the workbench (1). 3) and a suction component (14), the rotating component (13) controls the rotation of the positioning component (7), the suction component (14) controls the swing processing part (10) to swing through the positioning component (7), a top pushing mechanism (3) is fixedly provided on the top of the workbench (1), a positioning column (11) is sleeved inside the positioning component (7), and the positioning column (11) is sleeved on the outside of the assembly guide part (9), the tops of the two adjustment components (4) are provided with inner liner (5), and the top of the workbench (1) is fixedly connected with a limit baffle (12).

2. The inner flanging welding machine according to claim 1, characterized in that: The outer side surface of the inner liner (5) is provided with inner flanges (6) in an array, and the size of the positioning column (11) is adapted to the inner diameter of the inner flange (6).

3. The inner flanging welding machine according to claim 2, characterized in that: The adjustment assembly (4) comprises a mounting frame (41), an adjustment roller (42), a sleeve rod (43), a sleeve tube (44) and a spring 1 (45); the sleeve tube (44) is fixedly connected to the top of the workbench (1); one end of the sleeve rod (43) is movably sleeved in the sleeve tube (44), and the other end is fixedly connected to the mounting frame (41); the adjustment roller (42) is rotatably mounted in the mounting frame (41); a rotating motor is provided at one end of the mounting frame (41); the rotating motor controls the rotation of the adjustment roller (42); one end of the spring 1 (45) is fixedly connected to the inner end of the sleeve rod (43), and the other end of the spring 1 (45) is fixed to the top surface of the workbench (1); the spring 1 (45) is located in the sleeve tube (44); the rotation directions of the adjustment rollers (42) in the two groups of the adjustment assemblies (4) are synchronous and consistent, and the rotation of the inner liner (5) is controlled.

4. The inner flanging welding machine according to claim 3, characterized in that: The positioning kit (7) comprises a rotating column (71), a reserved cavity (72), an installation cavity (73), a sleeve hole (74) and a communication port (75); the rotating column (71) is rotatably mounted on the top of the workbench (1) via an outer bearing; the reserved cavity (72) is provided at the top of the rotating column (71); the installation cavity (73) is provided at the bottom of the rotating column (71); the sleeve hole (74) is provided inside the rotating column (71); two ends of the sleeve hole (74) are respectively communicated with the reserved cavity (72) and the installation cavity (73); and the communication port (75) is provided at both sides of the rotating column (71) and is communicated with the installation cavity (73).

5. The inner flanging welding machine according to claim 4, characterized in that: The buffer-type lifting part (8) comprises an electric push rod (81), a clamping plate (82) and a second spring (83); one end of the electric push rod (81) is fixed in the mounting cavity (73) and seals the bottom of the mounting cavity (73); the clamping plate (82) is fixedly connected to the movable end of the electric push rod (81); and the second spring (83) is fixedly connected to the top of the clamping plate (82).

6. The inner flanging welding machine according to claim 5, characterized in that: The assembly guide portion (9) comprises a guide rod (91), a suction chamber (92), a bottom opening (93), a sleeve chamber (94), a side opening (95) and a mounting side groove (96); the guide rod (91) is movably sleeved in the sleeve hole (74); the bottom opening (93) is provided at the bottom of the guide rod (91); the suction chamber (92) and the sleeve chamber (94) are both provided inside the guide rod (91) and are in communication with each other; the sleeve chamber (94) is in communication with the bottom opening (93); the side opening (95) is provided at the bottom of the guide rod (91); The guide rod (91) is provided on the outer surface of the guide rod (91) and is connected to the sleeve cavity (94). The installation side grooves (96) are provided on both sides of the top of the guide rod (91). The suction cavity (92) is connected to the suction assembly (14) through the sleeve cavity (94), the side opening (95), the sleeve hole (74), the installation cavity (73) and the communication opening (75). The clamping plate (82) is movably sleeved in the sleeve cavity (94). The other end of the spring (83) is in the sleeve cavity (94) and is fixedly connected to the guide rod (91).

7. The inner flanging welding machine according to claim 6, characterized in that: The swing processing part (10) comprises a movable block (101), a movable rod (102), a connecting rope (103), a fixed shaft (104) and a torsion spring (105); the fixed shaft (104) is fixed in the mounting side groove (96); the movable block (101) is movably sleeved in the mounting side groove (96) and rotatably sleeved on the outer surface of the fixed shaft (104); one end of the movable rod (102) is movably sleeved in the suction chamber (92) and the other end is fixedly connected to the connecting rope (103); the other end of the connecting rope (103) is fixedly connected to the movable block (101); the torsion spring (105) is fixedly connected between the movable block (101) and the inner wall of the mounting side groove (96); and the movable blocks (101) are symmetrically distributed on both sides of the guide rod (91).

8. The inner flanging welding machine according to claim 7, characterized in that: The rotating assembly (13) comprises a driving motor (131), a gear 1 (132) and a gear 2 (133); the gear 2 (133) is fixedly sleeved on the outer surface of each group of rotating columns (71) and meshes with each other; the output shaft of the driving motor (131) is fixedly sleeved on the gear 1 (132); the gear 1 (132) is meshedly connected with the gear 2 (133); the suction assembly (14) comprises a suction pump (141) and a connecting frame (142); the connecting frame (142) is fixed inside the workbench (1); the bottom of the connecting frame (142) is rotatably sleeved on the rotating column (71); the connecting port (75) is located in the connecting frame (142); and the suction end of the suction pump (141) is connected to the connecting frame (142).

9. The inner flanging welding machine according to claim 1, characterized in that: The welding mechanism (2) comprises an assembly arm (21), a power motor (22), a mounting plate (23) and a welding end (24); the assembly arm (21) is fixed on the workbench (1); the power motor (22) is fixed on the assembly arm (21); the mounting plate (23) is fixedly connected to the output shaft of the power motor (22); and the welding end (24) is eccentrically arranged on the mounting plate (23).

10. The inner flanging welding machine according to claim 1, characterized in that: The top pushing mechanism (3) comprises a bracket, a hydraulic push rod and a push plate, the bracket is fixed on the top of the workbench (1), one end of the hydraulic push rod is fixed on the bracket, and the movable end is fixedly connected to the push plate.

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