CN114012330A - Inner and outer circular seam welding equipment for large steel pipe connecting flange - Google Patents
Inner and outer circular seam welding equipment for large steel pipe connecting flange Download PDFInfo
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- CN114012330A CN114012330A CN202111439073.7A CN202111439073A CN114012330A CN 114012330 A CN114012330 A CN 114012330A CN 202111439073 A CN202111439073 A CN 202111439073A CN 114012330 A CN114012330 A CN 114012330A
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- 238000003466 welding Methods 0.000 title claims abstract description 111
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 238000009434 installation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009975 flexible effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001915 proofreading effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an inner and outer girth welding device for a large steel pipe connecting flange, which comprises an axis adjusting mechanism and a rotary welder, wherein the axis adjusting mechanism comprises a shaft sleeve, a connecting support rod is inserted in the shaft sleeve, the surface of the shaft sleeve is fixedly connected with a first connecting block, the end part of the connecting support rod is fixedly connected with a second connecting block, a tensioning assembly is rotatably connected between the first connecting block and the second connecting block, the end part of the shaft sleeve is fixedly connected with a supporting frame, the end surface of the supporting frame is provided with a threaded hole, and a pre-tightening bolt is installed in the threaded hole in a threaded manner. This equipment is through setting up axle center adjustment mechanism to utilize the inner wall laminating of tensioning assembly and steel pipe, expand tightly, guarantee the rigidity of axle sleeve, and with the axial lead collineation of steel pipe, provide the strong point for welder circumference operation welding, the whole rotation of steel pipe is not needed in this design, leans on welder's removal to realize the continuous welding of annular weld, and equipment structure is simple, easily transport, operation, guarantees continuous welding's quality and improvement work efficiency.
Description
Technical Field
The invention relates to the technical field of steel pipe flange welding, in particular to an inner circular seam welding device and an outer circular seam welding device for a large steel pipe connecting flange.
Background
The invention discloses a welding platform of a large-caliber steel pipe, which comprises a pair of guide rails, a sliding support, a welding table, a welding machine, a welding gun and a plurality of electric brush assemblies, wherein the pair of guide rails are vertically stacked and parallel to each other, and the sliding support is connected between the pair of guide rails in a sliding manner, so that the sliding support can horizontally reciprocate along the guide rails; the welding table is connected to one side of the sliding support in a sliding mode, so that the welding table can reciprocate up and down along the sliding support; the welding bench is characterized in that a welding window is formed in the bottom of the welding bench, the welding machine is fixedly connected to the welding bench, and the welding gun extends into the welding window and is communicated with the welding machine. The rolling base of the steel pipe is arranged on one side of the guide rail and is parallel to the guide rail, and after the steel pipe is placed, an operator can conveniently move the welding table (up and down along the sliding support or horizontal movement along the guide rail), so that the welding window is displaced to the upper part of a welding line; and starting the welding machine, and welding the lower steel pipe by using the welding gun extending into the welding window.
According to the technical scheme, in actual production, due to the fact that the steel pipe is large in size and long in length, rotary welding of the steel pipe is difficult to achieve, the rotating process of the steel pipe is guaranteed, welding seams do not jump (namely the steel pipe is not a standard circle, the axis line of the steel pipe cannot be adjusted and is coaxial with the default rotating axis of the rolling base), welding dislocation is easily caused by the jumping of the welding seams, or the welding seam collides with a welding gun, and welding continuous proceeding and welding quality are affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an inner and outer girth welding device for a large steel pipe connecting flange.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an inside and outside girth welding equipment of large-scale steel pipe flange, includes axle center adjustment mechanism and rotation welding ware, axle center adjustment mechanism includes the axle sleeve, and the axle sleeve interpolation is equipped with the connection vaulting pole, the fixed surface of axle sleeve is connected with first connecting block, and the tip fixedly connected with second connecting block of connection vaulting pole rotates between first connecting block and the second connecting block and is connected with the tensioning subassembly, and the tip fixedly connected with support frame of axle sleeve, the terminal surface of support frame set up threaded hole, and threaded hole internal thread installs pretension bolt, and pretension bolt's screw thread end rotates with the tip of connecting the vaulting pole to be connected.
The rotation welding ware includes the fixed disk, and fixed disk fixed mounting is on the surface of axle sleeve, and the excircle of fixed disk rotates and is connected with rotatory ring, and the first extension board of rotatory excircle fixedly connected with, the surface slip cover of first extension board are equipped with the mounting bracket, install welder on the mounting bracket, and the inside of fixed disk is provided with the rotatory ring pivoted gear of drive, and the detachable motor is installed to the terminal surface of fixed disk, and the rotation axis of motor drives gear revolve.
Preferably, the tensioning assembly comprises two inclined rods and a cross beam, the two inclined rods are arranged in parallel, the lengths of the two inclined rods are equal, one ends of the two inclined rods are respectively rotatably connected with the first connecting block and the second connecting block, and the other ends of the two inclined rods are rotatably connected with the cross beam.
Preferably, the tensioning assemblies are four in number, and the four tensioning assemblies are arranged around the shaft sleeve in an annular array.
Preferably, an adjusting bolt is installed on the surface of the cross beam in a threaded manner, a contact plate is arranged on the outer side of the cross beam and is of an arc-shaped structure, a universal ball joint is arranged on the inner side face of the contact plate, and the contact plate is movably connected with the end portion of the adjusting bolt through the universal ball joint.
Preferably, the annular groove has been seted up to the excircle of fixed disk, and rotatory ring setting is in the annular groove, the tooth's socket has been seted up to rotatory inner ring face, gear and tooth's socket meshing, the terminal surface of gear is provided with the hexagonal inserting groove, and the rotation axis of motor is the hexagonal structure, and window and two bolt holes have been seted up on the surface of fixed disk, and the motor passes through the bolt and installs the terminal surface at the fixed disk, and the rotation of motor is taken out and is passed the window can insert in the hexagonal inserting groove, drives gear revolve.
Preferably, the mounting bracket includes the lifter plate of suit on first extension board surface, and the lower surface cartridge of lifter plate has the pursuit telescopic link, trails the expansion end fixedly connected with installation piece of telescopic link, and the lower surface of installation piece rotates and is connected with the gyro wheel.
Preferably, the tracking telescopic rod comprises an outer tube and an inner core rod, the outer tube is fixedly connected with the lifting plate, the inner core rod is inserted into the outer tube in a sliding mode, a baffle ring is arranged on the surface of the inner core rod, two springs are sleeved on the surface of the inner core rod and are respectively arranged on the upper side and the lower side of the baffle ring, and opposite ends of the two springs are tightly abutted to the inner wall of the outer tube.
Preferably, the surface of the mounting block is provided with a through hole, a welding gun is arranged in the through hole of the mounting block in a penetrating manner, and the gun head of the welding gun is aligned with the outer welding seam of the steel pipe and the flange.
Preferably, the fixed disk is fixedly connected with a second extension plate, the surface of the second extension plate is also provided with an installation frame in a sliding mode, the surface of the installation block is fixedly connected with a clamping plate, a welding gun can be fixed on the clamping plate, and the gun head of the welding gun is aligned to the inner welding seam between the steel pipe and the flange.
Preferably, the first extension plate and the second extension plate are symmetrically arranged at the upper side and the lower side of the rotating ring, and the coaxial line of the first extension plate and the second extension plate passes through the center of the rotating ring.
The invention has the following beneficial effects:
1. this equipment is through setting up axle center adjustment mechanism to utilize the inner wall laminating of tensioning assembly and steel pipe, expand tightly, guarantee the rigidity of axle sleeve, and with the axial lead collineation of steel pipe, provide the strong point for welder circumference operation welding, the whole rotation of steel pipe is not needed in this design, leans on welder's removal to realize the continuous welding of annular weld, and equipment structure is simple, easily transport, operation, guarantees continuous welding's quality and improvement work efficiency.
2. This equipment rotates the welding ware through setting up, and motor drive rotating ring rotates, drives two welder and makes circumference operation simultaneously, realizes the welding of a welder to the outer seam, and another welder not only improves the welding efficiency of correction to the welding of inner seam, and this kind of inside and outside symmetry, synchronous welding mode prevent because of the thermal expansion, the flange produces not hard up, the displacement or sticks up the problem on limit with the steel pipe and takes place, further improves welding quality.
3. This equipment, track the telescopic link through setting up, surface or internal surface contact because of the gyro wheel of installation piece bottom plate and steel pipe, welder welding process, welder is along with the flexible fluctuation activity from top to bottom of inner core pole, guarantee that welder rifle head and welding department are in specific range all the time, thereby realize preventing welder and work piece from colliding, the effect of fine setting is played in this design, reduced axle center adjustment mechanism and proofread the axial lead requirement, convenient and fast more uses, compensate the defect that the nonstandard of steel pipe excircle is difficult to realize spin welding simultaneously.
4. This equipment, through setting up free adjustable contact plate, when welding sheet metal steel pipe, supports from inside, plays the effect of school circular steel pipe, when the steel pipe of many stupefied limits of welding, plays the effect of supplementary axle center adjustment mechanism proofreading the axial lead, and with pursuit telescopic link combined action, make welding stupefied limit steel pipe possible, more practical.
Drawings
FIG. 1 is a schematic view of the overall structure proposed by the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic side sectional view of a fixed disk according to the present invention;
FIG. 5 is a schematic front view of the structure of FIG. 1;
fig. 6 is a schematic view of an internal structure of the tracking telescopic rod according to the present invention.
In the figure: the welding device comprises a shaft sleeve 1, a connecting support rod 2, a first connecting block 3, a second connecting block 4, a support frame 5, a pre-tightening bolt 6, a tensioning assembly 7, a fixed disc 8, a rotating ring 9, a first extending plate 10, an installing frame 11, a welding gun 12, a gear 13, a motor 14, a diagonal rod 15, a cross beam 16, an adjusting bolt 17, a contact plate 18, a universal ball joint 19, a tooth space 20, a hexagonal inserting groove 21, a lifting plate 22, a tracking telescopic rod 23, a mounting block 24, an inner core rod 25, an outer pipe 26, a steel pipe 27, a flange 28, a second extending plate 29 and a clamping plate 30.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, an inner and outer girth welding device for a large steel pipe connecting flange comprises an axis adjusting mechanism and a rotary welder, wherein the axis adjusting mechanism comprises an axis sleeve 1, a connecting support rod 2 is inserted into the axis sleeve 1, a first connecting block 3 is fixedly connected to the surface of the axis sleeve 1, a second connecting block 4 is fixedly connected to the end of the connecting support rod 2, a tensioning assembly 7 is rotatably connected between the first connecting block 3 and the second connecting block 4, a support frame 5 is fixedly connected to the end of the axis sleeve 1, a threaded hole is formed in the end face of the support frame 5, a pre-tightening bolt 6 is installed in the threaded hole, and the threaded end of the pre-tightening bolt 6 is rotatably connected with the end of the connecting support rod 2.
The rotation welding ware includes fixed disk 8, fixed disk 8 fixed mounting is on axle sleeve 1's surface, the excircle of fixed disk 8 rotates and is connected with rotatory ring 9, the first extension board 10 of the first extension board fixedly connected with of excircle of rotatory ring 9, the surface slip cover of first extension board 10 is equipped with mounting bracket 11, install welder 12 on the mounting bracket 11, the inside of fixed disk 8 is provided with the rotatory ring 9 pivoted gear 13 of drive, detachable motor 14 is installed to the terminal surface of fixed disk 8, motor 14's rotating shaft drives gear 13 and rotates.
In this embodiment, tensioning set 7 has four sets, and four sets of tensioning set 7 are annular array and set up around axle sleeve 1, and tensioning set 7 includes two down tube 15 and a crossbeam 16, and two down tube 15 parallel arrangement and length equal, and the one end of two down tube 15 rotates with first connecting block 3 and second connecting block 4 respectively to be connected, and the other end of two down tube 15 all rotates with crossbeam 16 to be connected.
An adjusting bolt 17 is installed on the surface of the cross beam 16 in a threaded mode, a contact plate 18 is arranged on the outer side of the cross beam 16, the contact plate 18 is of an arc-shaped structure, a universal ball joint 19 is arranged on the inner side face of the contact plate 18, and the contact plate 18 is movably connected with the end portion of the adjusting bolt 17 through the universal ball joint 19.
By arranging the axis adjusting mechanism, the tensioning assembly 7 is attached to the inner wall of the steel pipe 27 and expands tightly, the position of the shaft sleeve 1 is fixed, and the shaft sleeve is collinear with the axis of the steel pipe 27, a supporting point is provided for circumferential operation welding of the welding gun 12, the design does not need integral rotation of the steel pipe 27, continuous welding of annular welding seams is realized by movement of the welding gun 12, the equipment is simple in structure, and is easy to carry and operate, the quality of continuous welding is guaranteed, and the working efficiency is improved.
In this embodiment, the annular groove has been seted up to the excircle of fixed disk 8, rotatory ring 9 sets up in the annular groove, tooth's socket 20 has been seted up to the inner ring face of rotatory ring 9, gear 13 and the meshing of tooth's socket 20, the terminal surface of gear 13 is provided with hexagonal inserting groove 21, the rotation axis of motor 14 is the hexagonal structure, window and two bolt holes have been seted up on the surface of fixed disk 8, motor 14 passes through the bolt and installs the terminal surface at fixed disk 8, motor 14's rotation is taken out and is passed the window and can be inserted in hexagonal inserting groove 21, drive gear 13 and rotate.
Through setting up the pursuit telescopic link 23, because of the gyro wheel of installation piece 24 bottom plate and the surface or the internal surface contact of steel pipe 27, welder 12 welding process, welder 12 is along with the flexible activity of fluctuation from top to bottom of inner core pole 25, guarantee that welder 12 rifle head and welding department are in specific range all the time, thereby realize preventing welder 12 and work piece from colliding, the effect of fine setting has been played in this design, the precision requirement of axle center adjustment mechanism school to the axial lead has been reduced, it is convenient and fast more to use, remedy the defect that the steel pipe 27 excircle is substandard to be difficult to realize spin welding simultaneously.
The surface of the mounting block 24 is provided with a through hole, the welding gun 12 is arranged in the through hole of the mounting block 24 in a penetrating way, and the head of the welding gun 12 is aligned with the outer welding seam of the steel pipe 27 and the flange 28.
The surface of the fixed disk 8 is fixedly connected with a second extension plate 29, the surface of the second extension plate 29 is also provided with the mounting frame 11 in a sliding manner, the surface of the mounting block 24 is fixedly connected with a clamping plate 30, the welding gun 12 can be fixed on the clamping plate 30, and the head of the welding gun 12 is aligned with the inner welding seam between the steel pipe 27 and the flange 28.
The first extension plate 10 and the second extension plate 29 are symmetrically arranged on the upper side and the lower side of the rotating ring 9, the coaxial line of the first extension plate 10 and the second extension plate 29 penetrates through the circle center of the rotating ring 9, two welding guns 12 are arranged to simultaneously perform circumferential operation, welding of one welding gun 12 to an outer seam is achieved, welding of the other welding gun 12 to an inner seam is achieved, the efficiency of primary correction welding is improved, the welding mode is symmetrical and synchronous, the problems that due to thermal expansion, the flange 28 and the steel pipe 27 are loosened, displaced or warped are solved, and the welding quality is further improved.
Through setting up freely adjustable contact plate 18, when welding sheet metal steel pipe 27, support from inside, play the effect of school circular steel pipe 27, when welding the steel pipe on many stupefied limits, play the effect of supplementary axle center adjustment mechanism proofreading the axial lead, with trail telescopic link 23 combined action, make welding stupefied limit steel pipe possible, more practical.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides an inside and outside girth welding equipment of large-scale steel pipe flange, includes axle center adjustment mechanism and rotation welding ware, its characterized in that: the axis adjusting mechanism comprises a shaft sleeve (1), a connecting support rod (2) is inserted into the shaft sleeve (1), a first connecting block (3) is fixedly connected to the surface of the shaft sleeve (1), a second connecting block (4) is fixedly connected to the end portion of the connecting support rod (2), a tensioning assembly (7) is rotatably connected between the first connecting block (3) and the second connecting block (4), a support frame (5) is fixedly connected to the end portion of the shaft sleeve (1), a threaded hole is formed in the end face of the support frame (5), a pre-tightening bolt (6) is installed in the threaded hole, and the threaded end of the pre-tightening bolt (6) is rotatably connected with the end portion of the connecting support rod (2);
the rotation welding ware includes fixed disk (8), fixed disk (8) fixed mounting is on the surface of axle sleeve (1), the excircle rotation of fixed disk (8) is connected with rotatory ring (9), the first extension board (10) of excircle fixedly connected with of rotatory ring (9), the surface slip cover of first extension board (10) is equipped with mounting bracket (11), install welder (12) on mounting bracket (11), the inside of fixed disk (8) is provided with the rotatory ring of drive (9) pivoted gear (13), detachable motor (14) are installed to the terminal surface of fixed disk (8), the rotating shaft drive gear (13) of motor (14) rotate.
2. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 1, wherein: tensioning assembly (7) include two down tube (15) and a crossbeam (16), and two down tube (15) parallel arrangement and length equal, and the one end of two down tube (15) rotates with first connecting block (3) and second connecting block (4) respectively to be connected, and the other end of two down tube (15) all rotates with crossbeam (16) to be connected.
3. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 2, wherein: the tensioning assemblies (7) are four in number, and the four tensioning assemblies (7) are arranged around the shaft sleeve (1) in an annular array.
4. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 3, wherein: adjusting bolts (17) are installed on the surface threads of the cross beam (16), a contact plate (18) is arranged on the outer side of the cross beam (16), the contact plate (18) is of an arc-shaped structure, a universal ball joint (19) is arranged on the inner side face of the contact plate (18), and the contact plate (18) is movably connected with the end portions of the adjusting bolts (17) through the universal ball joint (19).
5. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 1, wherein: annular groove has been seted up to the excircle of fixed disk (8), and rotatory ring (9) set up in the annular groove, tooth's socket (20) have been seted up to the interior anchor ring of rotatory ring (9), gear (13) and tooth's socket (20) meshing, the terminal surface of gear (13) is provided with hexagonal inserting groove (21), and the rotation axis of motor (14) is the hexagonal structure, and window and two bolt holes have been seted up on the surface of fixed disk (8), and motor (14) pass through the bolt and install the terminal surface in fixed disk (8), and the rotatory of motor (14) is taken out and is passed the window can insert in hexagonal inserting groove (21), drives gear (13) and rotates.
6. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 1, wherein: mounting bracket (11) are including suit lifter plate (22) on first extension board (10) surface, and the lower surface cartridge of lifter plate (22) has pursuit telescopic link (23), and the activity end fixedly connected with installation piece (24) of pursuit telescopic link (23), the lower surface rotation of installation piece (24) is connected with the gyro wheel.
7. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 6, wherein: the tracking telescopic rod (23) comprises an outer tube (26) and an inner core rod (25), the outer tube (26) is fixedly connected with the lifting plate (22), the inner core rod (25) is inserted into the outer tube (26) in a sliding mode, a baffle ring is arranged on the surface of the inner core rod (25), two springs are sleeved on the surface of the inner core rod (25) and are respectively arranged on the upper side and the lower side of the baffle ring, and opposite ends of the two springs are tightly abutted to the inner wall of the outer tube (26).
8. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 7, wherein: the surface of the mounting block (24) is provided with a through hole, the welding gun (12) is arranged in the through hole of the mounting block (24) in a penetrating mode, and the gun head of the welding gun (12) is aligned to the outer welding seam of the steel pipe (27) and the flange (28).
9. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 7, wherein: the surface of the fixed disc (8) is fixedly connected with a second extension plate (29), the surface of the second extension plate (29) is also provided with a mounting frame (11) in a sliding mode, the surface of the mounting block (24) is fixedly connected with a clamping plate (30), the welding gun (12) can be fixed on the clamping plate (30), and the gun head of the welding gun (12) is aligned to the inner welding seam of the steel pipe (27) and the flange (28).
10. The inside and outside girth welding equipment for the large steel pipe connecting flange according to claim 9, wherein: the first extension plate (10) and the second extension plate (29) are symmetrically arranged on the upper side and the lower side of the rotating ring (9), and the coaxial line of the first extension plate (10) and the second extension plate (29) penetrates through the circle center of the rotating ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439073.7A CN114012330A (en) | 2021-11-30 | 2021-11-30 | Inner and outer circular seam welding equipment for large steel pipe connecting flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439073.7A CN114012330A (en) | 2021-11-30 | 2021-11-30 | Inner and outer circular seam welding equipment for large steel pipe connecting flange |
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| CN114012330A true CN114012330A (en) | 2022-02-08 |
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| CN202111439073.7A Pending CN114012330A (en) | 2021-11-30 | 2021-11-30 | Inner and outer circular seam welding equipment for large steel pipe connecting flange |
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| CN114952101A (en) * | 2022-06-09 | 2022-08-30 | 宜兴华威封头有限公司 | Sectional machining device and method for spherical end socket |
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| CN112719774A (en) * | 2021-01-15 | 2021-04-30 | 中国水电四局(酒泉)新能源装备有限公司 | Auxiliary device for welding cylinder sections of offshore wind power generation tower |
| CN113560777A (en) * | 2021-09-07 | 2021-10-29 | 漯河市迈威数控机械设备有限公司 | Inner and outer circumferential seam welding equipment for multi-edge steel pipe flange |
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| CN114603270B (en) * | 2022-02-16 | 2023-09-29 | 王香玲 | Butt welding device for tank body in pressure container |
| CN114603270A (en) * | 2022-02-16 | 2022-06-10 | 王香玲 | Butt welding device for tank body in pressure container |
| CN114952101B (en) * | 2022-06-09 | 2024-02-20 | 宜兴华威封头有限公司 | Sectional machining device and method for spherical seal heads |
| CN114952101A (en) * | 2022-06-09 | 2022-08-30 | 宜兴华威封头有限公司 | Sectional machining device and method for spherical end socket |
| CN115673662A (en) * | 2022-10-21 | 2023-02-03 | 山东东宏管业股份有限公司 | Shrimp waist elbow pipe fitting welding set and welding system |
| CN115533280A (en) * | 2022-12-05 | 2022-12-30 | 江苏垒博汽配制造有限公司 | Be applied to multifunctional welding machine of muffler |
| CN115533280B (en) * | 2022-12-05 | 2023-03-10 | 江苏垒博汽配制造有限公司 | Be applied to multi-functional welding machine of muffler |
| CN117001264A (en) * | 2023-09-25 | 2023-11-07 | 黑龙江省建筑安装集团有限公司 | Tank prefabricated telescopic supporting device |
| CN117001264B (en) * | 2023-09-25 | 2024-01-30 | 黑龙江省建筑安装集团有限公司 | Tank prefabricated telescopic supporting device |
| CN117620509A (en) * | 2024-01-25 | 2024-03-01 | 江苏新宏大集团有限公司 | Automatic welding device for flange plate |
| CN117620509B (en) * | 2024-01-25 | 2024-03-26 | 江苏新宏大集团有限公司 | Automatic welding device for flange plate |
| CN117754197A (en) * | 2024-02-22 | 2024-03-26 | 山东胜越石化工程建设有限公司 | Pressure vessel welding device |
| CN117754197B (en) * | 2024-02-22 | 2024-04-16 | 山东胜越石化工程建设有限公司 | Pressure vessel welding device |
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