Surrounding type welding device

Abstract

The utility model provides a surrounding type welding device, which relates to the field of pipeline welding and comprises a clamping device, a surrounding motor, a gear, a rotating ring, a rotating column and a connecting rod. The fixing frame is welded to the outer side face of the rotating ring. The rotating column is connected with the motor through a key; the connecting rod is hinged to the upper side face of the push rod. The gear is in meshed connection with the rotating ring; the clamping device comprises an adjusting rotating ring, a spring and an extrusion rod; the right end of the spring is welded to the left side face of the sliding block. The extrusion rod is hinged to the connecting rod, and the extrusion rod is hinged to the positioning ring; the connecting rod is hinged to the clamping block; the positioning ring is connected with the butt joint positioning rod in a welded mode. The fixed threaded ring is connected with the base plate in a welded mode. Through the arrangement of the butt joint positioning rod, the clamping device, the gear and the rotating ring, continuous and accurate butt joint welding of pipe fittings is achieved, the welding operation efficiency is improved, manpower is saved, and the problems that traditional manual pipeline welding operation is tedious, and pipeline welding joints are staggered are solved.

Description

Technical Field

[0001] The utility model belongs to the field of pipeline welding, and more specifically, particularly relates to a surrounding welding device. Background Art

[0002] Pipeline welding technology refers to the process of connecting two or more pipe joints together through welding technology to form a continuous pipeline system to ensure the sealed circulation of the fluid in the pipe. At present, pipeline welding methods include arc welding, submerged arc welding, gas welding and argon arc welding. However, no matter which pipeline welding method is used, manual welding with a manually operated welding torch is required. In the traditional manual welding process, multiple workers are required to support and connect the two sets of pipes, and another welding operator completes the welding work. When the pipes are connected manually, it is very easy for the pipes to be misaligned and cause welding misalignment. In addition, since the pipeline welding path is mostly a ring structure, the welding operator needs to constantly interrupt the welding and adjust the welding posture during welding to complete the operations of attachment welding, flat welding, overhead welding and attachment welding of the pipe. It can be seen that the manual pipeline welding process not only requires a lot of manpower to work together, but also the welding operation is cumbersome and the efficiency of pipeline connection installation is low. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a surrounding welding device to solve the problems of cumbersome operation and misalignment of pipeline welding in traditional manual pipeline welding.

[0004] The utility model provides a surround welding device, comprising a welding gun and a knob; the welding gun is connected to the right side of the sliding plate by bolts; the knob is welded and connected to the top of the threaded rod; it also includes a clamping device, a butt pipe fitting, a fixed end pipe fitting, a surround motor, a gear, a rotating column, a motor and a connecting rod; the motor is connected to the lower side of the fixing frame by bolts; the fixing frame is welded and connected to the outer side of the rotating circle; the bottom end of the rotating column is fixedly connected to the motor shaft of the motor by a key; the rotating circle is rotatably connected to the base plate; the connecting rod is hinged on the upper side of the push rod; the push rod is welded and connected to the rear side of the welding gun frame, the upper side of the push rod is provided with a circular hole groove, and the bottom end of the threaded rod is rotatably connected to the hole groove of the push rod; an ear plate is provided at a position near the top of the left side of the welding gun frame, and a through hole is provided on the side of the ear plate, and the top of the threaded rod is rotatably connected to the through hole of the welding gun frame without a threaded surface, and a through groove structure that passes through left and right is provided at the center of the welding gun frame; the surround motor is connected to the left side of the base plate by bolts; the gear is fixed by a key The fixed connection is on the motor shaft surrounding the motor, and the gear is meshed with the rotating circle; the outer side of the base plate is provided with an annular groove, and the rotating circle is embedded in the annular groove of the base plate; the number of the clamping devices is two groups, and the clamping devices are symmetrically distributed on the left and right, and the clamping devices include an adjusting rotating circle, a spring, a supporting guide rod, and an extrusion rod; the number of the supporting guide rods is six groups, and the supporting guide rods are distributed in an annular array around the center line of the fixed thread circle, and the right end of each group of supporting guide rods is welded and connected to the left side of the fixed thread circle, and the left end of each group of supporting guide rods is welded and connected to the right side of the positioning circle; the number of the springs is six groups, and the springs are respectively nested in the outer side of the supporting guide rods, the right end of the spring is welded and connected to the left side of the sliding block, and the left end of the spring is welded and connected to the right side of the positioning circle; the extrusion rod is hinged with the connecting rod, and the extrusion rod is hinged with the positioning circle; the connecting rod is hinged with the clamping block; the positioning circle is respectively welded and connected to the left and right ends of the docking positioning rod; the clamping block is attached to the outer side of the docking pipe fitting and the fixed end pipe fitting; the fixed thread ring is welded and connected to the base plate.

[0005] In at least some embodiments, a right outer tooth structure is disposed around the outer side surface of the rotating circle, and the outer tooth structure of the rotating circle is meshed and connected with the gear.

[0006] In at least some embodiments, the number of the sliding blocks is six groups, each group of sliding blocks has a through hole structure extending left and right at the center, and the six groups of support guide rods are respectively inserted into the through hole structures of the six groups of sliding blocks.

[0007] In at least some embodiments, the inner side surface of the adjusting ring is provided with threads, and the adjusting ring is meshedly connected to the outer side surface of the fixed thread ring through the inner threads.

[0008] In at least some embodiments, a boss structure is provided on the upper side of the rotating column at a position deviating from the center, the through hole at the left end of the connecting rod is nested on the outside of the rotating column boss structure, and the rotating column is rotatably connected to the through hole of the connecting rod via the boss.

[0009] In at least some embodiments, a vertical plate is provided on the upper side of the fixing frame, and a square through-slot structure is provided on the vertical plate which passes through the vertical plate from left to right, and the push rod is inserted into the square through-slot of the push rod vertical plate.

[0010] In at least some embodiments, an ear plate is provided on the rear side of the sliding plate near the top, a threaded through hole is provided in the center of the ear plate extending vertically, and the threaded rod is engaged in the threaded through hole of the sliding plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the utility model, the meshing transmission mechanism composed of the gear driven by the surrounding motor and the outer tooth structure of the rotating circle is used to drive the welding gun carried by the fixed frame to rotate around the butt joint position of the butt joint pipe fitting and the fixed end pipe fitting, thereby realizing continuous, surrounding and automatic pipeline welding work, avoiding the interruption of welding operation caused by manual welding position adjustment, so that two groups of pipelines can be welded at one time, greatly improving the welding operation efficiency.

[0013] 2. In the utility model, the motor drives the convex column at the eccentric position on the side of the rotating column to rotate around the axis, so that the connecting rod connected to the rotating column convex column structure pulls the welding gun holder connected to the front end of the push rod to perform rapid left and right reciprocating motion, allowing the welding gun to simulate the manual fish scale welding path action, making the automated welding of pipe fittings more in line with the manual welding process, ensuring the welding quality of pipe fittings.

[0014] 3. In the utility model, the knob drives the threaded rod and the threaded through hole of the sliding plate ear plate to form a threaded engagement transmission mechanism, so that the sliding plate carrying the welding gun moves up and down along the through groove structure of the welding gun holder, so that the welding gun can adjust the height position of the welding starting point according to the pipe diameter of different pipelines, thereby improving the structural flexibility and applicability of the surround welding device.

[0015] 4. In the utility model, the clamping device utilizes the threaded engagement structure composed of the adjusting rotating circle and the fixed threaded circle to squeeze and push the sliding connecting rod motion mechanism composed of the extrusion rod, the connecting rod, the clamping block and the sliding block to operate, so that the six groups of clamping blocks clamp and support the butt-jointed pipe fittings or the fixed-end pipe fittings to realize the alignment of the welded pipe fitting interfaces, replacing the traditional manual support butt joint, making the pipe fitting butt joint more accurate and labor-saving, and effectively preventing the occurrence of misaligned pipe butt joints by the butt positioning rod to position and dock the two groups of clamping devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the utility model.

[0017] Figure 2 The utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0018] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0019] Figure 4 It is a front view structural schematic diagram of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the utility model in an upward and side view.

[0021] Figure 6 It is a structural schematic diagram of the clamping device of the utility model.

[0022] Figure 7 It is a left-side structural schematic diagram of the clamping device of the utility model.

[0023] Figure 8 It is a schematic diagram of the cutaway structure of the clamping device of the utility model.

[0024] Reference numerals:

[0025] 1. Docking positioning rod;

[0026] 2. Clamping device; 201. Positioning ring; 202. Adjusting circle; 203. Fixed thread ring; 204. Spring; 205. Support guide rod; 206. Extrusion rod; 207. Connecting rod; 208. Clamping block; 209. Sliding block;

[0027] 3. Butt fittings;

[0028] 4. Fixed end pipe fittings;

[0029] 5. Base plate;

[0030] 6. Turning circle;

[0031] 7. Surround motor;

[0032] 8. Gears;

[0033] 9. Welding gun;

[0034] 10. Sliding plate;

[0035] 11. Welding gun stand;

[0036] 12. Knob;

[0037] 13. Putting;

[0038] 14. Fixed frame;

[0039] 15. Rotating column;

[0040] 16. Electric motor;

[0041] 17. Connecting rod;

[0042] 18. Threaded rod. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] like Figure 1-8As shown, the utility model provides a surrounding welding device, including a welding gun 9 and a knob 12; the welding gun 9 is connected to the right side of the sliding plate 10 by bolts; the knob 12 is welded to the top of the threaded rod 18; it also includes a clamping device 2, a butt-jointed pipe fitting 3, a fixed end pipe fitting 4, a surrounding motor 7, a gear 8, a rotating column 15, a motor 16 and a connecting rod 17; the motor 16 is connected to the lower side of the fixing frame 14 by bolts; the fixing frame 14 is welded to the outer side of the rotating circle 6; the bottom end of the rotating column 15 is fixedly connected to the motor shaft of the motor 16 by a key; the rotating circle 6 rotates with the base plate 5 Connection; connecting rod 17 is hinged on the upper side of push rod 13; push rod 13 is welded to the rear side of welding gun frame 11, and a circular hole groove is provided on the upper side of push rod 13, and the bottom end of threaded rod 18 is rotatably connected in the hole groove of push rod 13; an ear plate is provided on the left side of welding gun frame 11 near the top, and a through hole is provided on the side of the ear plate, and the top end of threaded rod 18 is rotatably connected in the through hole of welding gun frame 11, and a through groove structure is provided at the center of welding gun frame 11; the surrounding motor 7 is connected to the left side of base plate 5 by bolts; gear 8 is fixedly connected to the motor shaft of the surrounding motor 7 by a key, and gear 8 The base plate 5 is meshed with the rotating circle 6; an annular groove is provided on the outer side of the base plate 5, and the rotating circle 6 is embedded in the annular groove of the base plate 5; there are two groups of clamping devices 2, which are symmetrically distributed on the left and right, and the clamping devices 2 include an adjusting rotating circle 202, a spring 204, a supporting guide rod 205, and an extruding rod 206; there are six groups of supporting guide rods 205, which are distributed in an annular array around the center line of the fixed thread circle 203, and the right end of each group of supporting guide rods 205 is welded to the left side of the fixed thread circle 203, and the left end of each group of supporting guide rods 205 is welded to the right side of the positioning circle 201. Side; there are six groups of springs 204, which are respectively nested in the outer side of the support guide rod 205, the right end of the spring 204 is welded and connected to the left side of the sliding block 209, and the left end of the spring 204 is welded and connected to the right side of the positioning ring 201; the extrusion rod 206 is hinged to the connecting rod 207, and the extrusion rod 206 is hinged to the positioning ring 201; the connecting rod 207 is hinged to the clamping block 208; the positioning ring 201 is respectively welded and connected to the left and right ends of the docking positioning rod 1; the clamping block 208 is attached to the outer side of the docking pipe fitting 3 and the fixed end pipe fitting 4; the fixed threaded ring 203 is welded and connected to the base plate 5.

[0045] When the utility model is performing pipeline welding work, the clamping device 2 welded on the left side of the docking positioning rod 1 is first placed on the outside of the fixed end pipe fitting 4, and ensure that the welding head of the welding gun 9 is aligned with the welding edge of the fixed end pipe fitting 4, and then the adjusting circle 202 is manually rotated. Since the inner thread of the adjusting circle 202 and the outer thread of the fixed thread circle 203 are meshed with each other, the adjusting circle 202 will simultaneously push the six groups of sliding blocks 209 to move translationally along the supporting guide rod 205, and the sliding blocks 209 press the hinged connecting rod 207 to flip, and the connecting rod 207 presses the hinged extrusion rod 206 to flip, so that the six groups of clamping blocks 208 are simultaneously attached to the outer side of the fixed end pipe fitting 4. At this time, the clamping device 2 is clamped on the outside of the fixed end pipe fitting 4, and then the docking pipe fitting 3 is inserted into the inner side of the clamping device 2 on the right side of the docking positioning rod 1. When the docking pipe fitting 3 is roughly docked to the welding edge of the fixed end pipe fitting 4, the clamping device 2 on the right side of the docking positioning rod 1 clamps the fixed end pipe fitting 4 , at this time, the butt-jointed pipe fitting 3 and the fixed end pipe fitting 4 are precisely butted together under the guidance and positioning clamping of the clamping device 2 and the butt-jointed positioning rod 1, and the knob 12 is manually turned, and the knob 12 drives the threaded rod 18 to rotate. Since the threaded through hole of the sliding plate 10 is meshed with the threaded rod 18, the threaded rod 18 drives the sliding plate 10 to move downward and gradually approaches the welding starting point of the butt-jointed pipe fitting 3 and the fixed end pipe fitting 4, and then the surrounding motor 7, the welding gun 9, and the motor 16 are started at the same time, the surrounding motor 7 drives the gear 8 to rotate, and the gear 8 drives the meshing rotating circle 6 to rotate, so that the welding gun 9 moves along the annular welding path. At this time, the motor 16 drives the rotating column 15 to rotate at a high speed, and the convex column structure on the upper side of the rotating column 15 pushes and pulls the welding gun holder 11 connected to the front end of the push rod 13 through the connecting rod 17 to reciprocate left and right, and the welding gun holder 11 drives the welding gun 9 to reciprocate left and right, so that the welding gun holder 11 performs fish scale welding along the annular welding path, completing the continuous surrounding butt welding of the two groups of pipe fittings.

[0046] In the disclosed embodiment, a right outer tooth structure is arranged around the outer side of the rotating ring 6, and the outer tooth structure of the rotating ring 6 is meshed with the gear 8, so that the surrounding motor 7 can drive the welding gun 9 to perform surrounding welding through the meshing structure between the gear 8 and the rotating ring 6.

[0047] In the disclosed embodiment, there are six groups of sliding blocks 209, and a through-hole structure that passes through the left and right sides is provided at the center of each group of sliding blocks 209. The six groups of supporting guide rods 205 are respectively inserted into the through-hole structures of the six groups of sliding blocks 209. The sliding blocks 209 can slide in a directional manner along the supporting guide rods 205, so that the six groups of clamping blocks 208 can be stably fitted on the outer side of the docking pipe fitting 3 or the fixed end pipe fitting 4.

[0048] In the disclosed embodiment, a thread is provided on the inner side of the adjusting ring 202, and the adjusting ring 202 is engaged with the outer side of the fixed thread ring 203 through the inner thread. The adjusting ring 202 rotates and translates along the fixed thread ring 203 and simultaneously pushes the extrusion rod 206, the connecting rod 207 and the hinged structure of the clamping block 208 to realize the fixed clamping of the pipe fitting.

[0049] In the disclosed embodiment, a convex column structure is provided on the upper side surface of the rotating column 15 at a position deviating from the center, and the through hole at the left end of the connecting rod 17 is embedded in the outer side of the convex column structure of the rotating column 15. The rotating column 15 is rotatably connected to the through hole of the connecting rod 17 through the convex column. When the rotating column 15 rotates, the connecting rod 17 pulls the welding gun frame 11 at the front end of the push rod 13 to reciprocate, thereby realizing the swing of the welding gun 9 to simulate manual fish scale welding.

[0050] In the disclosed embodiment, a vertical plate is provided on the upper side of the fixing frame 14, and a square through groove structure is provided on the vertical plate which runs through the left and right sides. The push rod 13 is inserted into the square through groove of the vertical plate of the push rod 13, and the outer side surface of the push rod 13 fits into the vertical plate through groove of the fixing frame 14 to perform stable reciprocating translational motion.

[0051] In the disclosed embodiment, an ear plate is provided on the rear side of the sliding plate 10 near the top, and a threaded through hole is provided in the center of the ear plate which passes through from top to bottom. The threaded rod 18 is meshed and connected in the threaded through hole of the sliding plate 10. The threaded rod 18 drives the sliding plate 10 to move vertically along the through groove structure of the welding gun holder 11, thereby realizing the adjustment of the surrounding welding height of the welding gun 9.

[0052] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, as long as it can achieve its beneficial effects, it can be implemented. The above-mentioned surround motor 7, welding gun 9, and electric motor 16 are all common components on the market. When they are bought back for use, they can be used by simply connecting them according to the instruction manual purchased together, so they will not be repeated here.

[0053] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A wraparound welding device, comprising a welding gun and a knob; the welding gun is connected to the right side of a sliding plate by bolts; the knob is welded to the top of a threaded rod; and the device is characterized in that: The cam is connected to the bottom surface of the motor via a bolt, and the gear is fixed to the bottom surface of the motor via a key; the gear is connected to the bottom surface of the motor via a key and the gear is meshed with the rotating ring; the cam is connected to the bottom surface of the motor via a key and the gear is meshed with the rotating ring; the cam is connected to the bottom surface of the motor via a key and the gear is meshed with the rotating ring; the cam is connected to the bottom surface of the motor via a key and the gear is meshed with the rotating ring; the cam is connected to the bottom surface of the motor via a key and the gear is meshed with the rotating ring; the cam is connected to the bottom surface of the motor via a key The outer side surface is provided with an annular groove, and the rotating circle is embedded in the annular groove of the base plate; there are two groups of clamping devices, which are symmetrically distributed on the left and right, and the clamping devices include adjusting rotating circles, springs, supporting guide rods, and extrusion rods; there are six groups of supporting guide rods, which are distributed in an annular array around the center line of the fixed thread circle, and the right end of each group of supporting guide rods is welded and connected to the left side of the fixed thread circle, and the left end of each group of supporting guide rods is welded and connected to the right side of the positioning circle; there are six groups of springs, and the springs are respectively nested in the outer side surfaces of the supporting guide rods, the right end of the spring is welded and connected to the left side of the sliding block, and the left end of the spring is welded and connected to the right side of the positioning circle; the extrusion rod is hinged to the connecting rod, and the extrusion rod is hinged to the positioning circle; the connecting rod is hinged to the clamping block; the positioning rings are respectively welded and connected to the left and right ends of the docking positioning rod; the clamping block is attached to the outer side surfaces of the docking pipe fitting and the fixed end pipe fitting; the fixed thread ring is welded and connected to the base plate.

2. A wraparound welding device as claimed in claim 1, characterized in that: A right outer tooth structure is arranged around the outer side surface of the rotating circle, and the outer tooth structure of the rotating circle is meshed and connected with the gear.

3. A wraparound welding device as claimed in claim 1, characterized in that: There are six groups of sliding blocks, and a through hole structure that passes through left and right is provided at the center of each group of sliding blocks. The six groups of supporting guide rods are respectively inserted into the through hole structures of the six groups of sliding blocks.

4. A wraparound welding device as claimed in claim 1, characterized in that: The inner side surface of the adjusting rotating circle is provided with a thread, and the adjusting rotating circle is meshedly connected to the outer side surface of the fixed thread circle through the inner side thread.

5. A wraparound welding device as claimed in claim 1, characterized in that: A convex column structure is provided on the upper side surface of the rotating column at a position deviating from the center, and the through hole at the left end of the connecting rod is nested in the outer side of the convex column structure of the rotating column, and the rotating column is rotatably connected to the through hole of the connecting rod through the convex column.

6. A wraparound welding device as claimed in claim 1, characterized in that: The upper side of the fixing frame is provided with a vertical plate, and the vertical plate is provided with a square through-groove structure which passes through the left and right sides, and the push rod is inserted into the square through-groove of the push rod vertical plate.

7. A wraparound welding device as claimed in claim 1, characterized in that: An ear plate is arranged near the top end of the rear side of the sliding plate, a threaded through hole is arranged in the center of the ear plate and the threaded rod is meshedly connected in the threaded through hole of the sliding plate.

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